CN1254933C - 用于码分多址(cdma)通信系统的自动功率控制系统 - Google Patents

用于码分多址(cdma)通信系统的自动功率控制系统 Download PDF

Info

Publication number
CN1254933C
CN1254933C CNB021439710A CN02143971A CN1254933C CN 1254933 C CN1254933 C CN 1254933C CN B021439710 A CNB021439710 A CN B021439710A CN 02143971 A CN02143971 A CN 02143971A CN 1254933 C CN1254933 C CN 1254933C
Authority
CN
China
Prior art keywords
signal
power
noise
needs
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNB021439710A
Other languages
English (en)
Other versions
CN1492609A (zh
Inventor
加里·隆
法提赫·厄兹吕蒂尔克
约翰·科瓦尔斯基
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
InterDigital Technology Corp
Original Assignee
InterDigital Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21692981&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN1254933(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by InterDigital Technology Corp filed Critical InterDigital Technology Corp
Publication of CN1492609A publication Critical patent/CN1492609A/zh
Application granted granted Critical
Publication of CN1254933C publication Critical patent/CN1254933C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H04B7/2637Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for logical channel control
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14Handling requests for interconnection or transfer
    • G06F13/36Handling requests for interconnection or transfer for access to common bus or bus system
    • G06F13/368Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control
    • G06F13/374Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control using a self-select method with individual priority code comparator
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/02Frequency selective networks
    • H03H17/0223Computation saving measures; Accelerating measures
    • H03H17/0225Measures concerning the multipliers
    • H03H17/0226Measures concerning the multipliers comprising look-up tables
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • H04B1/70751Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70753Partial phase search
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • H04B1/70754Setting of search window, i.e. range of code offsets to be searched
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • H04B1/70755Setting of lock conditions, e.g. threshold
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • H04B1/70758Multimode search, i.e. using multiple search strategies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • H04B1/708Parallel implementation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7085Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/709Correlator structure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/709Correlator structure
    • H04B1/7093Matched filter type
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/711Interference-related aspects the interference being multi-path interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/10Code generation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/10Code generation
    • H04J13/102Combining codes
    • H04J13/107Combining codes by concatenation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041Arrangements at the transmitter end
    • H04L1/0042Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0059Convolutional codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • H04L25/0212Channel estimation of impulse response
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/18Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20Modulator circuits; Transmitter circuits
    • H04L27/2032Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/18Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22Demodulator circuits; Receiver circuits
    • H04L27/233Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2332Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438Negotiation of transmission parameters prior to communication
    • H04L5/1446Negotiation of transmission parameters prior to communication of transmission speed
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00912Arrangements for controlling a still picture apparatus or components thereof not otherwise provided for
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/333Mode signalling or mode changing; Handshaking therefor
    • H04N1/3333Mode signalling or mode changing; Handshaking therefor during transmission, input or output of the picture signal; within a single document or page
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/08Closed loop power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/143Downlink power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/245TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/26TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/262TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account adaptive modulation and coding [AMC] scheme
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/32TPC of broadcast or control channels
    • H04W52/322Power control of broadcast channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/32TPC of broadcast or control channels
    • H04W52/325Power control of control or pilot channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/34TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/34TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/38TPC being performed in particular situations
    • H04W52/50TPC being performed in particular situations at the moment of starting communication in a multiple access environment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/52TPC using AGC [Automatic Gain Control] circuits or amplifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/54Signalisation aspects of the TPC commands, e.g. frame structure
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/02Frequency selective networks
    • H03H17/06Non-recursive filters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • H04B1/7077Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/711Interference-related aspects the interference being multi-path interference
    • H04B1/7115Constructive combining of multi-path signals, i.e. RAKE receivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/711Interference-related aspects the interference being multi-path interference
    • H04B1/7115Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/712Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70702Intercell-related aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707Efficiency-related aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707Efficiency-related aspects
    • H04B2201/7071Efficiency-related aspects with dynamic control of receiver resources
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H04B7/264Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for data rate control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0007Code type
    • H04J13/004Orthogonal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0007Code type
    • H04J13/004Orthogonal
    • H04J13/0048Walsh
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0077Multicode, e.g. multiple codes assigned to one user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/10Code generation
    • H04J13/12Generation of orthogonal codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/16Code allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0007Code type
    • H04J2013/0037Multilevel codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0047Decoding adapted to other signal detection operation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0054Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0024Carrier regulation at the receiver end
    • H04L2027/0026Correction of carrier offset
    • H04L2027/003Correction of carrier offset at baseband only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0044Control loops for carrier regulation
    • H04L2027/0053Closed loops
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/333Mode signalling or mode changing; Handshaking therefor
    • H04N2201/33307Mode signalling or mode changing; Handshaking therefor of a particular mode
    • H04N2201/33342Mode signalling or mode changing; Handshaking therefor of a particular mode of transmission mode
    • H04N2201/3335Speed or rate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/146Uplink power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/247TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter sent by another terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/26TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367Power values between minimum and maximum limits, e.g. dynamic range
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/38TPC being performed in particular situations
    • H04W52/44TPC being performed in particular situations in connection with interruption of transmission
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/54Signalisation aspects of the TPC commands, e.g. frame structure
    • H04W52/60Signalisation aspects of the TPC commands, e.g. frame structure using different transmission rates for TPC commands
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

扩频通信系统的自动功率控制(APC)系统包括自动前向功率控制(AFPC)系统和自动反向功率控制(ARPC)系统。AFPC中用户机测量前向信道信息信号前向信噪比生成前向信道误差信号(包括信道不相关噪声和前向信噪比和预定信噪比间误差)。从前向信道误差信号生成的控制信号作为反向信道信息信号的一部分发送。基本单元包括AFPC接收机,接收反向信道信息信号并提取前向信道误差信号以调整前向扩频信号功率电平。ARPC系统中基本单元测量反向信道信息信号反向信噪比生成反向信道误差信号(包括信道不相关噪声和反向信噪比和预定信噪比间误差)。基本单元发送从反向信道误差信号生成控制信号作为前向信道信息信号的一部分。

Description

用于码分多址(CDMA)通信系统的自动功率控制系统
本申请是于1996年6月27日提交的中国申请号为No.96195906.1的申请的分案申请。
发明背景
近年来,向远程用户组提供优质的电信服务,诸如乡村电话系统和发展中国家的电话系统,已被证明具有很大的挑战性。通过无线服务可部分地满足这些需要,例如固定或移动的频分多路传输(FDM)、频分多址(FDMA)、时分多路传输(TDM)、时分多址(TDMA)系统、频分和时分组合系统(FD/TDMA)及其他陆地移动无线电系统。通常,这些远程服务面对着比它们的频率或频谱带宽容量所能同时支持的更多潜在用户。
认识到这些局限性,最近在无线通信中已发展使用扩展频谱调制技术,以通过单个通信信道提供多用户的同时通信。扩展频谱调制是指用扩展码信号调制信息信号;扩展码信号由码发生器产生,其中扩展码的周期Tc基本上小于信息数据位或码元信号(Symbol signal)的周期。此码可以调制发送信号的载波频率,这被称为跳频扩展;或者通过扩展码乘以信息数据信号来直接调制信号,这被称为直接序列扩展(DS)。扩展频谱调制产生的信号具有比发送信息信号所要求的要宽的频带。在接收机的解调器处同步接收和解扩展信号来恢复初始信息。同步解调器使用一参考信号来使解扩展电路与输入的扩频调制信号同步,以恢复载波和信息信号。参考信号可以是没有用信息信号调制的扩展码。
无线网络中的扩展频谱调制有很多优点,因为多个用户可以使用相同频率,并且对每个用户的接收机的干扰最小。另外,扩展频谱调制减小了来自其它干扰源的影响。还有,同步扩频调制和解调技术可以通过为用户提供多个报文信道而得以扩展(expanded),每次都以不同扩频码扩频,同时仅传送一单一参考信号给用户。
与多址、扩频通信系统相关的另一问题是由于用户也许已限制可用功率,因而需要减少系统中总的用户发射功率。扩频系统中要求功率控制的相关问题与扩频系统的固有特征有关,即一个用户的扩频信号由另一用户接收为具有一定功率电平的噪声。结果,用户以很高的信号功率发射时可能干扰其它用户的接收。还有,如果用户相对于另一用户的地理位置移动,则信号的衰落和变形要求用户调整他们的发射功率电平,以维持特定的信号质量,并维持基站从所有用户接收的功率。最后,由于扩频系统可以有比它能同时支持的更多的远程用户,功率控制系统还应当采用在达到最大系统功率电平时拒绝额外用户的容量管理方法。
现有扩频系统已采用测量接收的信号并发射自适应功率控制(APC)信号给远程用户的基站。远程用户包括带有响应此APC信号的自动增益控制(AGC)电路的发射机。在这样的系统中,基站监测整个系统功率或从每个用户接收的功率,并因而设置APC信号。此开环系统的性能可通过包括测量由远程用户从基站接收的信号功率,并将APC信号发送回基站以实现闭环功率控制方法来得以改进。
然而,这些功率控制系统表现出几个缺点。第一,基站必须进行复杂的功率控制算法,增加了基站的处理量。第二,系统实际上要经历几种功率变化:由于改变用户数量引起的噪声功率变化及特定承载信道的接收信号功率上的变化。这些变化以不同频率产生,因而只能针对两种变化之一优选简单的功率控制算法。最后,这些功率算法趋向于将整个系统功率驱动到相对高的水平。结果,需要一种扩频功率控制方法,它能迅速地响应承载信道功率电平的变化,而同时对所有用户的发射功率做出调整,以响应用户数量的变化。还有,改进的扩频通信系统需要采用一闭环功率控制系统,它使得系统的整个功率要求最小并在每个远程接收机处保持足够的BER。另外,这样的系统应当控制远程用户的初始发射功率电平并管理总的系统容量。
本发明概述
本发明包括一种用于扩频通信系统的无线电载波基站(RCS)和用户机(SU)组的闭环自动功率控制(APC)系统和方法。SU发送扩频信号,RCS获取扩频信号,并且RCS检测收到的扩频信号加上包括噪声的任何干扰噪声的功率电平。APC系统包括RCS和多个SU,其中RCS发送多个前向信道信息信号给SU作为具有各自的前向发射功率电平的多个前向信道扩频信号,而每个SU向基站发送至少一个具有各自的反向发射功率电平的反向扩频信号及至少一个反向信道扩频信号包括反向信道信息信号。
APC包括一自动前向功率控制(AFPC)系统和一自动反向功率控制(ARPC)系统。AFPC有这样一些步骤:每个SU测量各前向信道信息信号的前向信噪比,产生一各自的前向信道误差信号,此误差信号包括各前向信噪比与预定信噪比值之间的前向误差测量值。前向信道误差信号还包括信道中无关联噪声的测量值。各个前向信道误差信号由SU发送为各个反向信道信息信号的一部分。RCS包括大量AFPC接收机,用来接收反向信道信息信号和从各个反向信道信息信号中提取前向信道误差信号。RCS也调整各个前向扩频信号中每一个的前向发射功率电平,以响应各个前向误差信号。
RCS中ARPC系统的该部分测量各个反向信道信息信号的反向信噪比,产生各个反向信道误差信号,此误差信号包括各个反向信道信噪比和各个预定信噪比值之间的误差测量值。反向信道误差信号也包括信道中无关联噪声的测量值。RCU发射各个反向信道误差信号作为各个前向信道信息信号的一部分。每个SU包括一ARPC接收机,用来接收前向信道信息信号,从前向信道信息信号中提取各个反向误差信号,以及调整各个反向扩频信号的反向发射功率电平,以响应各个反向误差信号。
图1是按照本发明的码分多址通信系统的方框图。
图2是本发明的示例性维持功率控制算法的流程图。
图3是本发明的示例性自动前向功率控制算法的流程图。
图4是本发明的示例性自动反向功率控制算法的流程图。
图5是当建立了承载信道时本发明的示例性闭环功率控制系统的方框图。
图6是在建立承载信道的过程中本发明的示例性闭环功率控制系统的方框图。
对实施例的描述
本发明的系统使用一个或多个基站与多个远程用户机(subscribeunits)间的无线电链路提供区域环路电话服务。在示例性实施例中,只介绍用于一个基站与一个固定用户机(FSU)通信的一个无线电链路,但本系统同样适用于包括用无线电链路与FSU和移动用户机(MSU)连接的多个基站的系统。因而,远程用户机在这里被称为用户机(SU)。
参照图1,基站(BS)101向局内交换机(LE)103或任何其他电话网交换接口提供呼叫连接,并包括无线电载波站(RCS)104。一个或多个RCS104、105、110经链路131、132、137、138、139与无线分配单元(RDU)102相连,而RDU102通过经电信链路141、142、150发射和接收呼叫建立、控制和信息信号而与LE103接口。SU 116、119经RF链路161、162、163、164、165与RCS104通信。另外,本发明的另一实施例包括几个SU和功能与RCS类似的“主”SU。这样的实施例可以与局内电话网相连,也可以不与局内电话网相连。
尽管上述实施例使用以发射和接收扩频信道的载波为中心的不同扩频带宽,但本方法很容易延伸到使用发射信道的多个扩频带宽和接收信道的多个扩频带宽的系统。另外,由于扩频通信系统有这样的固有特征:一个用户的发射对于另一用户的解扩展接收机呈现为一种噪声,因而实施例能采用用于发射和接收信道的相同扩频信道。换言之,上行链路和下行链路发射可占用相同频带。本发明一个实施例也可采用在频率上不必邻近的多个扩频信道。在此实施例中,上行链路、下行链路或上行链路和下行链路发射可使用任何信道。
在示例性实施例中,扩展二进制码元信息使用带Nyquist脉冲成形的正交相移键控(QPSK)调制经无线电链路161到165发射,尽管可以使用其它调制技术,包括但不限于偏移QPSK(OQPSK),最小频移键控(MSK),多元相移键控(MPSK)和高斯相移键控(GPSK)。
RCS或SU中的CDMA解调器以适当的处理解扩收到的信号,以改变或利用多路传播效应。使用有关接收功率电平的参数以产生自动功率控制(APC)信息,此信息依次发送到其它终端。使用APC信息来控制自动前向功率控制(AFPC)和自动反向功率控制(ARPC)链路的发射功率。另外,每个RCS 104、105和110能进行维持功率控制(MPC),以与APC类似的方式调整每个SU111、112、115、117和118的初始发射功率。解调是相干的,其中导频信号提供相参考。
使用两个不同闭环功率控制算法控制RCS 104和SU111、112、115、117和118之间无线电接口的发射功率电平。自动前向功率控制(AFPC)确定下行链路发射功率电平,而自动反向功率控制(ARPC)确定上行链路发射功率电平。例如SU111和RCS104用以传送功率控制信息的逻辑控制信道工作在至少16KHz更新速率上。其它实施例可以使用更快的32KHz更新速率。这些算法确保用户的发射功率维持一可接受的比特误差率(BER),将系统功率维持在节省能量的最小值上,并将由RCS104接收的所有SU111、112、115、117和118的功率电平维持在大约相等水平上。
另外,此系统包括一在SU的停机模式之中使用的优选维持功率算法。当SU111停机或供电停止以节省能量时,此用户机可不时地启动它自己并调整其设置的初始发射功率电平,以响应来自RCS104的维持功率控制信号。RCS 104通过测量SU111的接收功率电平和本系统功率电平并计算必要的初始发射功率来确定维持功率信号,当SU111接通以开始通信时此方法缩短了SU111的信道获取时间。在闭环功率控制将发射功率调整到适合信道中的其它报文通讯的电平之前,此方法还避免在初始发射中SU111的发射功率电平变得太高以及干扰其他信道。
RCS104从诸如但不限于E1、T1或HDSC接口的接口线获得其时钟的同步。每个RCS也能从一可由全球定位系统(GPS)接收机调整的振荡器产生它自己的内部时钟信号。RCS104为一具有扩展码但没有数据调制的信道产生全球导频码,它可由远程SU111到118获取。RCS的所有发射信道与导频信道同步,并且用于RCS104中逻辑通信信道的码发生器(未示出)的扩展码相位也与导频信道的扩展码相位同步。类似地,接收RCS104的全球导频码的SU111到118使SU的码发生器(未示出)的扩展和解扩码相位与全球导频码同步。
逻辑通信信道
现有技术中的“信道”通常被认为是一通信通路,它是接口的一部分并且能够不考虑其内容从接口的其他通路中区分出来。然而,在CDMA的情况下,分开的通信通路只能根据它们的内容来区分。词语“逻辑信道”用来区分分开的数据流,它在逻辑上与传统意义的信道相当。本发明的所有逻辑信道和子信道与公用每秒64K码元(ksym/s)QPSK流一一对应。有些信道与所产生的有关导频码同步,并执行与系统全球导频码相似的功能。然而系统导频信号并不认为是逻辑信道。
在RCS和SU间的RF通信链路上使用几个逻辑通信信道。每个逻辑通信信道或者具有固定的、预定扩展码,或者有一动态分配的扩展码。对于预定和分配的码这两者,其码相位均与导频码同步。逻辑通信信道分为两组:全局信道(GC)组和分配信号(AC)组。GC组包括或者从基站RCS传送到所有远程SU或者不管SU的标识从任何SU传送到基站的RCS的信道。这些信道典型地包含所有用户的给定类型的信息。这些信道包括由SU使用以得到系统入口的信道。分配信道(AC)组中的信道是那些专用于RCS和特定SU间通信的信道。
功率控制
概述
利用本发明的功率控制性能来使RCS和任何与其处于通信状态的SU间所用的发射功率最小。在承载信道连接之中更新发射功率的功率控制子性能被定义为自动功率控制(APC)。在前向APC信道上将APC数据从RCS传送到SU,而在反向APC信道上则从SU传送到RCS。当在此两者间没有接通数据链路时,则维持功率控制子性能(MPC)控制SU的发射功率。
由APC算法来控制前向和反向分配信道及反向全局信道的发射功率电平,以便在这些信道上维持足够的信号功率与干扰噪声功率之比(SIR),并使系统输出功率稳定和最小。本发明使用闭环功率控制系统,其中接收机控制其相关的发射器,以逐步提高或降低其发射功率。这一控制经APC信道上的功率控制信号传递到相关发射器。接收机在两个误差信号的基础上作出判定,以增加或降低发射器的功率。一个误差信号表示测量的与要求的解扩信号功率之间的差值,而另一个误差信号表示平均接收的总功率。
如本发明的所述实施例中使用的一样,术语“近端”(near-end)功率控制用来表示按照在APC信道上从另一端接收的APC信号调整发射器的输出功率。这意味着用于SU的反向功率控制和用于RCS的前向功率控制;而术语“远端”(far-end)APC用来表示用于SU的前向功率控制和用于RCS的反向功率控制(调整在信道相对端的用户机的发射功率)。
为了节省功率,SU调制解调器在等待呼叫(定义为睡眠状态)时终止发送并停止供电。由来自SU控制器的叫醒信号终止睡眠状态。响应此信号,SU调制解调器获取电路自动进入重获取状态,并开始获取下行链路导频的过程,如下述。
闭环功率控制算法
近端功率控制包括两步:第一,设置初始发射功率;第二,按照从远端接收的信息使用APC不断地调整发射功率。
对于SU,将初始发射功率设置为最小值,然后逐渐上升,例如为1dB/ms的速度,直到或者上升到计时器停止(来示出)或者RCS将FBCH上相应通讯灯值变为“红”,“红”表示RCS已锁定SU的短导频信号(SAXPT)计时器的停止引起SAXPT发送中断,除非通讯灯值首先设置为红,在这种情况下SU继续抬升发射功率,但其速度要比检测到“红”信号之前低得多。
对于RCS,将初始发射功率设置在一固定值,与针对服务类型和当前系统用户数目通过实验确定的进行可靠操作所需要的最小值相当。诸如全球导频或快速广播信道(FBCH)的全局信道通常以固定初始功率发射,而通讯信道转换为APC。
在APC信道上APC信号被发射为一个比特信号。此一比特信号表示增加(信号是逻辑高)或降低(信号是逻辑低)相关发射功率的命令。在所述实施例中,64kbps APC数据流不是编码的或交织的。
远端功率控制包括用于远端的近端发射功率控制信息,用于调整其发射功率。
如果下列不等式成立,则APC算法使RCS或SU发射+1,否则发射-1(逻辑低)。
α1e12e2>0             (1)
这里,误差信号e1按下式计算:
e1=Pd-(1+SNRREF)PN        (2)
式中Pd是解扩信号加噪声功率,PN是解扩噪声功率,以及SNRREF是特定服务类型所希望的解扩信号与噪声之比;以及
e2=Pr-Po                     (3)
式中Pr是收到功率的测量值,而Po是自动增益控制(AGC)电路的设定点。针对每种服务类型和APC更新速率选择方程式(30)中的权重α1和α2
维持功率控制
在SU的睡眠状态之中,CDMA的RF信道的干扰噪声功率改变。
作为上述初始功率升高方法的另一种选择,本发明可以包括一维持功率控制性能(MPC),它针对CDMA信道的干扰噪声功率周期性地调整SU的初始发射功率。MPC是一个过程,通过此过程将SU的发射功率电平维持在与RCS检测SU的信号所要求的最小电平极接近的范围内。此MPC过程补偿所要求的SU发射功率中的低频变化。
维持控制性能使用两个全局信道:一个称之为反向链路上的状态信道(STCH),另一个称之为前向链路上的核查信道(CUCH)。在这些信道上发送的信号没有携带数据,并且以与产生用于初始功率提升的短码相同的方式产生这些信号。从全局码发生器的“反向”支路产生STCH和CUCH码。
MPC过程如下。在随机的间隔中,SU在状态信道(STCH)上周期地发送码元长度扩展码达3ms。如果RCS检测到此序列,则它通过在核查信道(CUCH)上在下一个3ms内发送码元长度码序列作出应答。当SU检测到来自RCS的应答时,它以特定步长减少它的发射功率。如果SU在3ms时间内没有检测到来自RCS的任何响应,则它以此步长增加发射功率。使用这一方法,以足够维持所有SU的0.99检测可能性的功率电平发射RCS响应。
通讯负载的变化率和有效用户的数目与CDMA信道总干扰噪声功率有关。使用通信理论领域公知的排队理论方法来确定本发明的维持功率更新信号的更新率和步长。通过将呼叫起源过程模拟为随平均6.0分钟而变化的指数随机变量,数字计算表明SU的维持功率电平应当每10秒或更少时间更新一次,以便能使用0.5dB的步长跟上干扰电平的变化。将呼叫起源过程模拟为随指数的呼叫发生次数而变化的泊松随机变量,则通过数字计算,每个用户每秒2×10-4的呼叫发生率、每秒1/360的服务率以及RCS服务区内为600的总用户人数也表明当使用0.5dB步长时每10秒一次的更新速度足够了。
由从睡眠状态变为醒着状态的SU周期地进行维持功率调整。结果,MPC性能的处理流程如图2所示,并为如下步骤:第一,在步骤201,在SU和维持在接近于检测所要求的发射功率电平的RCS之间交换信号:SU在STCH中周期地发送码元长度扩展码,而RCS在CUCH中周期地发送码元长度扩展码作为应答。
下面,在步骤202,如果SU在它发送的STCH报文之后在3ms内收到应答,则在步骤203以特定步长减少其发射功率;但如果SU在STCH报文后在3ms内没有收到应答,则在步骤204以相同步长增加其发射功率。
在步骤205,SU在发送另一STCH报文之前等待一段时间,该段时间由平均为10秒的随机过程来确定。
因此,根据RCS应答周期地调整来自SU的STCH报文的发射功率,并且来自RCS的CUCH的发射功率是固定的。
将功率控制信号与APC的逻辑信道一一对应
将功率控制信号与具体的逻辑信道一一对应,用来控制前向和反向分配信道的发射功率电平。反向全局信道也由APC算法控制,以便在这些反向信道上维持足够的信号功率与干扰噪声功率比(SIR),并使得系统输出功率稳定和最小。本发明使用闭环功率控制方法,其中接收机周期地决定逐步升高或降低另一端发射机的输出功率。此方法也将此决定返回给各个发射机。
                    表1 APC信号信道分配
链路:信道及信号   呼叫/连接状态   功率控制方法
  初始值   继续
反向链路:AXCH,AXPT   正被建立   功率直线上升所确定   前向APC信道中的APC位
反向链路:APC,OW,TRCH,导频信号   进行之中   在呼叫建立之中形成的电平   前向APC信道中的APC位
前向链路:APC,OW,TRCH   进行之中   固定值   反向APC信道中的APC位
前向和反向链路分别独立控制。对于进行中的呼叫/连接,由在反向APC信道上传送的APC位控制前向链路通讯信道(TRCH)APC和传号线(OW)功率。在呼叫/连接建立过程中,反向链路访问信道(AXCH)功率也由在前向APC信道上传送的APC位来控制。表11总结了所控制信道的具体功率控制方法。
任何特定SU的分配信道TRCH、APC和OW及反向分配导频信号的规定SIR在相互比例关系上保持不变,并且这些信道具有大致相同的衰落,因此它们一起进行功率控制。
自动前向功率控制
在呼叫/连接之中AFPC系统尽量维持前向信道上的最小规定SIR。
图3所示的AFPC循环程序包括在步骤301中SU形成两个误差信号e1和e2的步骤,其中
e1=Pd-(1+SNRREF)PN        (4)
e2=Pr-Po                  (5)
Pd是解扩信号加噪声功率,PN是解扩噪声功率,SNRREF是该服务类型的规定信噪比,Pr是总接收功率的测量值,而Po是AGC设定点。下一步,SU调制解调器在步骤302形成组合误差信号α1e12e2。这儿,为每种服务类型和APC更新率选择权重α1和α2。在步骤303,SU严格限制组合误差信号,并形成单个APC位。在步骤304,SU将APC位传送给RCS,在步骤305,RCS调制解调器接收该位。在步骤306,RCS增加或减少其给SU的发射功率,然后此算法从步骤301开始重复。
自动反向功率控制
在呼叫/连接建立之中和呼叫/连接进行之中,ARPC系统维持反向信道上的最小规定SIR,以使总的系统反向输出功率最小。从步骤401开始图4所示的ARPC循环程序,在步骤401,RCS调制解调器形成两个误差信号e1和e2,其中
e1=Pd-(1+SNRREF)PN      (6)
e2=Pπ-Po             (7)
Pd是解扩信号加噪声功率,PN是解扩噪声功率,SNRREF是该服务类型的参照信噪比,Pπ是由RCS接收的平均总功率的测量值,而Po是AGC设定点。在步骤402,RCS调制解调器形成组合误差信号α1e12e2,并在步骤403严格限制此误差信号以确定单个APC位。在步骤404,RCS发送APC位给SU,并在步骤405由SU接收此位。最后,在步骤406,SU按照接收的APC位调整其发射功率,并且此程序从步骤401开始重复。
SIR和多信道类型
链路上信道的所要求SIR是信道格式(例如TRCH,OW)、服务类型(例如ISDNB,32Kb/s ADPCM POTS)及在其上分配数据位的码元数(例如将两个64kb/s码元集合以形成单个32kb/sADPCM POTS码元)的函数。预定与每个信道和服务类型所要求的SIR相对应的解扩器输出功率。在呼叫/连接处于进行之中时,几个用户CDMA逻辑信道同时启动;这些信道的每一个在每个码元周期发送一码元。测量来自标称最大SIR信道的码元的SIR,与阈值相比较,并用来在每个码元周期确定APC升高/降低决定。表2表示由服务和呼叫类型用于APC计算的码元(和阈值)。
                表2:用于APC计算的码元/阈值
 服务或呼叫类型   呼叫/连接状态   用于APC判定的码元(及阈值)
 不用管   正被建立   AXCH
 ISDN D SU   进行之中   一个来自TRCH(ISDN-D)的1/64-KBPS码元
 ISDN 1B+D SU   进行之中   TRCH(ISDN-B)
 ISDN 2B+D SU   进行之中   TRCH(一个ISDN-B)
 POTS SU(64KBPSPCM)   进行之中   一个来自TRCH的1/64-KBPS码元,使用64KBPS PCM阈值
 POTS SU(32KBPSADPCM)   进行之中   一个来自TRCH的1/64-KBPS码元,使用32KBPC AD PCM阈值
 维持呼叫不通(任何SU)   进行之中   OW(在维持呼叫中继续)
APC参数
APC信息通常转换为单个位的信息,并且APC数据率与APC更新率相当。APC更新率是64kb/s。这一速率足够高,能够适应预期的Rayleigh和Doppler衰退,并允许在上行链路和下行链路APC信道中有相对高(~0.2)的比特误差率(BER),这使得用于APC的容量最小。
由APC位表示的功率升高/降低在标称上处于0.1和0.01dB之间。对于本系统的示例性实施例,功率控制的动态范围在反向链路上为70dB而在前向链路上为12dB。
多路复用APC信息的另一实施例
前面说明的专用APC和OW逻辑信道也能在一个逻辑信道中一起多路复用。APC信息以64kb/s连续地传送,由此OW信息出现在数据脉冲串中。另一多路复用逻辑信道包括例如同相信道上的非编码、非交织64kb/s APC信息和QPSK信号90°相差信道上的OW信息。
闭环功率控制的运行
在呼叫连接之中的闭环功率控制响应于整个系统功率中的两个不同变量。第一,此系统响应于诸如SU的功率电平变化的本地行为,第二,此系统响应于系统中全组的有效用户的功率电平变化。
本发明的示例性实施例的功率控制系统如图5所示。如其所示,用来调整RCS的发射功率的电路(如RCS功率控制模块501所示)和用于SU的电路(如SU功率控制模块502所示)相似。从RCS功率控制模块501开始,反向链路RF信道信号在RF天线处被接收并解调,以产生供给可变增益放大器(VGA1)510的反向CDMA信号RMCH。VGA1510的输出信号供给自动增益控制(AGC)电路511,此电路产生进入VGA1510的可变增益放大器控制信号。此信号将VGA1 510的输出信号电平维持在一近似恒值。VGA1的输出信号由解扩—解多路复用器(demux)512解扩,它产生一解扩用户报文信号MS和前向APC位。前向APC位供给集成器513,以产生前向APC控制信号。前向APC控制信号控制前向链路VGA2 514,并将前向链路RF信道信号维持在通信所需要的最小电平。
RCS功率模块501的解扩用户报文信号MS的信号功率由功率测量电路515测量,以产生信号功率指示。VGA1的输出也由AUX解扩器来解扩,该解扩器使用不相关扩展码解扩信号,因此得到解扩噪声信号。此信号的功率测量值乘以1加上所要求的信噪比(SNRR),以形成阈值信号S1。由减法器516产生解扩信号功率和阈值S1之间的差值。该差值是误差信号ES1,它是与特定SU发射功率电平相关的误差信号。类似地,VGA1 510的控制信号供给速率变换(scaling circuit)电路517,以减少用于VGA1的控制信号的速率。变换电路517的输出信号是变换后系统功率电平信号SP1。阈值计算逻辑电路518计算来自RCS用户信道功率数据信号(RCSUSR)的系统信号阈值SST值。变换的系统功率电平信号的补数SP1和系统信号功率阈值SST供给加法器519,它产生第二误差信号ES2。这一误差信号与所有有效SU的系统发射功率电平相关。输入的误差信号ES1和ES2在合并器520中合并,产生输入到增量调制器(DM1)521中的合并误差信号,并且DM1的输出信号是反向APC比特流信号,具有+1或-1的比特值,本发明的反向APC比特流信号被发射为64kb/s信号。
反向APC位供给扩展电路(spreading circuit)522,并且扩展电路522的输出信号是扩频前向APC报文信号。前向OW和通讯信号也供给扩展电路523、524,产生前向通讯报文信号1、2、…N。前向APC信号、前向OW和通讯报文信号的功率电平由各自的放大器525、526和527调整,以产生功率电平调整后的前向APC、OW和TRCH信道信号。这些信号由加法器528合并,并供给VAG2514,它产生前向链路RF信道信号。
包括扩频前向APC信号的前向链路RF信道信号由SU的RF天线接收,并解调以产生前向CDMA信号FMCH。此信号供给可变增益放大器(VGA3)540。VGA3的输出信号供给自动增益控制电路(AGC)541,它产生进入VGA3 540的可变增益放大器控制信号。此信号将VGA3的输出信号电平维持在一近似恒值电平。VAG3 540的输出信号由解扩解多路复用器542解扩,产生解扩用户报文信号SUMS和反向APC位。此反向APC位供给集成器543,它产生反向APC控制信号。该反向APC控制信号供给反向APC VGA4 544,以将反向链路RF信道信号维持在最小功率电平。
解扩用户报文信号SUMS也供给产生功率测量值信号的功率测量电路545,该功率测量值信号在加法器546中加上阈值S2的补数,以产生误差信号ES3。信号ES3是与特定SU的RCS发射功率电平相关的误差信号。为得到阈值S2,来自AUX解扩器的解扩噪声功率指示乘以1加希望的信噪比SNRR。AUX解扩器使用不相关扩频码解扩输入数据,因此其输出是解扩噪声功率的指示。
类似地,用于VGA3的控制信号供给速率变换电路以减少用于VGA3控制信号的速率,从而产生变换的接收功率电平RP1(见图5)。阈值计算电路计算来自SU测量功率信号SUUSR的接收信号阈值RST。变换后的所接收功率电平RP1的补数和所接收信号阈值RST供给产生误差信号ES4的加法器。此误差与供给所有其它SU的RCS发射功率相关。输入误差信号ES3和ES4在合并器中合并,并输入δ调制器DM2547,DM2547的输出信号是前向APC比特流信号,此信号具有+1或-1的比特值。在本发明的示例性实施例中,此信号发送为64kb/s信号。
前向APC比特流信号供给扩展电路2948,以产生输出反向扩频APC信号。反向OW和通讯信号也输入扩展电路549、550,产生反向OW和通讯报文信号1、2、…N,并且由反向导频生成器551生成反向导频。反向APC报文信号、反向OW报文信号、反向导频及反向通讯报文信号的功率电平由放大器552、553、554、555调整,以产出由加法器556合并并输入给反向APC VGA4 544的信号。该VGA4 544产生反向链路RF信道信号。
在呼叫连接和承载信道建立过程中,修改本发明的闭环功率控制,如图6所示。如其所示,用来调整发射功率的电路是不同的:对于RCS,是如图所示的初始RCS功率控制模块601;对于SU,是如图所示的初始SU功率控制模块602。从初始RCS功率控制模块601开始,反向链路RF信道信号在RF天线处接收,并解调,产生由第一可变增益放大器(VGA1)603接收的反向CDMA信号IRMCH。VGA1的输出信号由自动增益控制电路(AGC1)604检测,此电路将可变增益放大器控制信号供给VGA1603,以将VAG1的输出信号电平维持在一近似恒值。VGA1的输出信号由解扩解多路复用器605解扩,而后产生解扩用户报文信号IMS。前向APC控制信号ISET被设置为固定值,并供给前向链路可变增益放大器(VGA2)606,以将前向链路RF信道信号设置在一预定电平。
初始RCS功率模块601的解扩用户报文信号IMS的信号功率由功率测量电路607测量,并且在减法器608中从阈值S3里减去输出功率测量值,以产生误差信号ES5,这是与特定SU的发射功率电平相关的误差信号。通过将从AUX解扩器得到的解扩功率测量值乘以1加希望的信噪比SNRR来计算阈值S3。AUX解扩器使用不相关扩频码解扩信号,因此其输出信号是解扩噪声功率的指示。类似地,VGA1控制信号供给速率变换电路609,以减少VGA1控制信号的速率,以便产生变换的系统功率电平信号SP2。阈值计算逻辑电路610确定从用户信道功率数据信号(IRCSUSR)计算的初始系统信号阈值(ISST)。变换的系统功率电平信号SP2的补数和ISST供给加法器611,它产生第二误差信号ES6,这是与所有有效SU的系统发射功率电平相关的误差信号。ISST的值是具有特定配置的系统的希望发射功率。输入误差信号ES5和ES6在合并器612中合并,产生输入到δ调制器(DM3)613的合并误差信号。DM3产生初始反向APC比特流信号,此信号具有+1或-1的比特值,本发明的反向APC比特流信号发射为64kb/秒信号。
此反向APC比特流信号供给扩展电路614,以产生初始扩频前向APC信号。控制信道(CTCH)信息由扩展器616扩展,以形成扩展CTCH报文信号。扩展APC和CTCH信号由放大器615和617变换,并由合并器618合并。合并的信号供给VAG2 606,它产生前向链路RF信道信号。
前向链路RF信道信号包括扩展前向APC信号,由SU的RF天线接收,并解调,以产生初始前向CDMA信号(IFMCH),此信号供给可变增益放大器(VGA3)620。VGA3的输出信号由自动增益控制电路(AGC2)621检测,它产生用于VGA3620的可变增益放大器控制信号。此信号将VGA3 620的输出功率电平维持在一近似恒定值。VAG3的输出信号由解扩解多路复用器622解扩,产生一初始反向APC位,此反向APC位依赖于VGA3的输出电平。反向APC位由集成器623处理,以产生反向APC控制信号。反向APC控制信号供给反向APC VGA4624,以将反向链路RF信道信号维持在一确定功率电平。
全局信道AXCH信号由扩展电路625扩展,以提供扩展AXCH信道信号。反向导频生成器626提供一反向导频信号,并且AXCH的信号功率和反向导频信号由各个放大器627和628调整。扩展AXCH信道信号和反向导频信号由加法器629相加,以产生反向链路CDMA信号。反向链路CDMA信号由反向APC VGA4 624接收,它产生输出到RF发射器的反向链路RF信道信号。
系统容量管理
本发明的系统容量管理算法为一称之为单元的RCS区优选最大用户容量。当SU达到最大发射功率的一定值时,SU发送报警报文给RCS。RCS将控制访问系统的通讯灯设置为“红”,如前述这是禁止SU访问的标志。这种状态保持有效,直到报警SU终止其呼叫,或直到在SU处测量的报警SU的发射功率小于最大发射功率的值。当多个SU发送报警报文时,此状态保持有效,直到要么来自报警SU的所有呼叫终止,要么在SU处测量的报警SU的发射功率小于最大发射功率。另一实施例在前向误差纠正(FEC)解码器中测量比特误差率测量值,并保持RCS通讯灯为“红”,直到比特误差率小于预定值。
本发明的阻止策略方法包括使用从RCS发送到SU的功率控制信息和RCS处的接收功率测量值的方法。RCS测量其发射功率电平,检测达到的最大值,并确定什么时侯阻止新的用户。如果在成功地完成承载信道分配之前SU到达最大发射功率,则准备进入系统的SU阻止它自己。
系统中的每个额外用户具有增加所有其它用户的噪声电平的效应,这减少了每个用户经历的信噪比(SNR)。功率控制算法维持每个用户所希望的SNR。因此,在缺乏任何其他限制时,增加新用户到系统中仅有短暂影响,并会重新获得希望的SNR。
通过测量基带合并信号的均方根(rms)值或者通过测量RF信号的发射功率并反馈给数字控制电路来在RCS中进行发射功率测量。发射功率测量也可由SU来进行,以确定此用户机是否已达到其最大发射功率。通过测量RF放大器的控制信号并在服务类型的基础上变换此值,由此确定SU发射功率电平,这些服务类型例如普通老式电话服务(POTS),FAX或综合业务数字网(ISDN)。
SU已达到最大功率的信息在所分配信道的报文中由SU发送给RCS。RCS也通过测量反向APC变化来确定此状况,因为如果RCS发送APC报文给SU以增加SU发射功率,而RCS处测量的SU发射功率没有增加,则SU已达到最大发射功率。
RCS不使用通讯灯来阻止已使用短码完成了功率逐步抬升的新用户。通过否认它们的拨号音并使它们时间用尽来阻止这些用户。RCS在APC信道上发送所有的“1”(下降命令),以使SU降低其发射功率。RCS也发送没有CTCH的报文或带有无效地址的报文,这迫使FSU放弃访问程序并重新开始。SU并不立即开始获取程序,因为通讯灯是红色的。
当RCS达到其发射功率极限时,它以与当SU达到其发射功率极限时相同的方式进行阻止。RCS关闭FBCH上的所有通讯灯,开始发送所有“1”APC比特(下降命令)给那些已完成它们的短码功率抬升但还没有给出拨号音的用户,而后发送没有CTCH的报文给这些用户或发送带无效地址的报文以迫使它们放弃访问程序。
SU的自阻止算法如下。当SU开始发射AXCH时,APC使用AXCH启动其功率控制操作,并且SU的发射功率升高。当发射功率在APC的控制下升高时,它由SU控制器监测。如果达到发射功率极限,SU放弃访问过程并重新启动。
尽管本发明已按照示例性实施例进行了说明,本领域的专业人员应理解可以对下面权利要求中确定的发明范围里的实施例进行修改,由此实施本发明。

Claims (12)

1、一种用于估算接收机的需要的接收信号的频谱中的噪声水平的方法,该需要的接收信号利用码分多址来扩频,该估算的噪声水平用于发送该接收的信号的发射机的功率控制,该方法包括:
在接收机处接收频谱上的信号和噪声;
解调接收的信号和噪声以产生解调的信号;
利用与需要的接收信号有关的码所不相关的码解扩解调的信号;及
测量解扩后的解调的信号的功率作为估算的该频谱的噪声水平。
2、根据权利要求1的方法,其中该解扩是由不同于用于解扩该需要的接收信号的解扩器的AUX解扩器完成的。
3、根据权利要求1的方法,其中在解扩之前,接收信号和噪声的增益被利用可变增益放大器调整。
4、根据权利要求3的方法,其中该接收信号和噪声利用需要的接收信号码进行解扩,该解扩的需要的信号的功率水平被测量作为接收的需要的信号的功率水平以用于发射机的功率控制。
5、一种利用码分多址通信的无线扩频用户机单元,一需要的信号由该用户机单元在一频谱上接收,该用户机单元包括:
一个解扩器,具有一输入端,用于接收该频谱上的解调的接收信号和噪声,及用于利用与需要的接收信号有关的码不相关的码解扩该接收的解调的信号和噪声;
一功率测量装置,用于测量该解扩的信号的功率水平作为相对于该需要的接收信号的噪声水平的估算值。
6、根据权利要求5的用户机单元,其中该解扩器是把同于需要的接收信号的解扩器的一个AUX解扩器。
7、根据权利要求5的用户机单元,还包括一个可变增益放大器,用来在接收信号和噪声输入到解扩器之前调整其增益。
8、根据权利要求7的用户机单元,还包括:
需要的信号解扩器,用于利用该需要的接收信号码解扩该接收的解调信号和噪声;
该功率测量装置测量该需要的信号解扩器的解扩结果的功率水平。
9、一种利用码分多址通信的扩频无线载波基站(RCS),一需要的信号由RCS在一频谱上接收,该RCS包括:
一解扩器,具有用于接收该频谱上的解调的接收信号和噪声的输入端,及用于利用与该需要的接收信号有关的码不相关的码解扩该接收的解调信号和噪声;
功率测量装置,用于测量解扩的信号的功率水平作为相对于需要的接收信号的噪声水平的估算值。
10、根据权利要求9的RCS,其中该解扩器是不同于该需要的接收信号的解扩器的一个AUX解扩器。
11、根据权利要求9的RCS,还包括一个可变增益放大器,用来在接收信号和噪声输入到解扩器之前调整其增益。
12、根据权利要求11的RCS,还包括:
需要的信号解扩器,用于利用该需要的接收信号码解扩该接收的解调信号和噪声;
该功率测量装置测量该需要的信号解扩器的解扩结果的功率水平。
CNB021439710A 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统 Expired - Lifetime CN1254933C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77595P 1995-06-30 1995-06-30
US60/000,775 1995-06-30

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN96195906A Division CN1095257C (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN2005101181058A Division CN1790932B (zh) 1995-06-30 1996-06-27 用于码分多址通信系统的自动功率控制方法和系统

Publications (2)

Publication Number Publication Date
CN1492609A CN1492609A (zh) 2004-04-28
CN1254933C true CN1254933C (zh) 2006-05-03

Family

ID=21692981

Family Applications (9)

Application Number Title Priority Date Filing Date
CNB021439710A Expired - Lifetime CN1254933C (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CNA2006101007713A Pending CN1905387A (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CN96195906A Expired - Lifetime CN1095257C (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CN200610100772.8A Expired - Lifetime CN1905388B (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CN2005101181058A Expired - Lifetime CN1790932B (zh) 1995-06-30 1996-06-27 用于码分多址通信系统的自动功率控制方法和系统
CNA2006101007677A Pending CN1909387A (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CNA2006101007751A Pending CN1905391A (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CNA2006101007747A Pending CN1905390A (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CNA2006101007732A Pending CN1905389A (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统

Family Applications After (8)

Application Number Title Priority Date Filing Date
CNA2006101007713A Pending CN1905387A (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CN96195906A Expired - Lifetime CN1095257C (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CN200610100772.8A Expired - Lifetime CN1905388B (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CN2005101181058A Expired - Lifetime CN1790932B (zh) 1995-06-30 1996-06-27 用于码分多址通信系统的自动功率控制方法和系统
CNA2006101007677A Pending CN1909387A (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CNA2006101007751A Pending CN1905391A (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CNA2006101007747A Pending CN1905390A (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统
CNA2006101007732A Pending CN1905389A (zh) 1995-06-30 1996-06-27 用于码分多址(cdma)通信系统的自动功率控制系统

Country Status (23)

Country Link
US (31) US5799010A (zh)
EP (25) EP1158702B1 (zh)
JP (39) JP3478342B2 (zh)
KR (6) KR100383225B1 (zh)
CN (9) CN1254933C (zh)
AP (2) AP681A (zh)
AR (11) AR002638A1 (zh)
AT (13) ATE306751T1 (zh)
AU (3) AU6401396A (zh)
CA (9) CA2848679A1 (zh)
DE (25) DE996239T1 (zh)
DK (14) DK0835568T3 (zh)
ES (17) ES2147548T1 (zh)
FI (14) FI119163B (zh)
HK (12) HK1015983A1 (zh)
ID (10) ID25596A (zh)
MY (4) MY127923A (zh)
NO (3) NO318270B1 (zh)
PT (4) PT835568E (zh)
SA (1) SA06270486B1 (zh)
TW (1) TW318983B (zh)
WO (3) WO1997002714A2 (zh)
ZA (1) ZA965340B (zh)

Families Citing this family (765)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0107746D0 (en) 2001-03-28 2001-05-16 Nokia Networks Oy Transmissions in a communication system
US6940840B2 (en) * 1995-06-30 2005-09-06 Interdigital Technology Corporation Apparatus for adaptive reverse power control for spread-spectrum communications
US6697350B2 (en) 1995-06-30 2004-02-24 Interdigital Technology Corporation Adaptive vector correlator for spread-spectrum communications
US5953346A (en) 1996-06-27 1999-09-14 Interdigital Technology Corporation CDMA communication system which selectively suppresses data transmissions during establishment of a communication channel
US6487190B1 (en) * 1996-06-27 2002-11-26 Interdigital Technology Corporation Efficient multichannel filtering for CDMA modems
US6801516B1 (en) 1995-06-30 2004-10-05 Interdigital Technology Corporation Spread-spectrum system for assigning information signals having different data rates
US7123600B2 (en) * 1995-06-30 2006-10-17 Interdigital Technology Corporation Initial power control for spread-spectrum communications
US7020111B2 (en) 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
US5841768A (en) 1996-06-27 1998-11-24 Interdigital Technology Corporation Method of controlling initial power ramp-up in CDMA systems by using short codes
US7072380B2 (en) * 1995-06-30 2006-07-04 Interdigital Technology Corporation Apparatus for initial power control for spread-spectrum communications
US7929498B2 (en) 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6816473B2 (en) 1995-06-30 2004-11-09 Interdigital Technology Corporation Method for adaptive forward power control for spread-spectrum communications
US6049535A (en) * 1996-06-27 2000-04-11 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6788662B2 (en) 1995-06-30 2004-09-07 Interdigital Technology Corporation Method for adaptive reverse power control for spread-spectrum communications
ZA965340B (en) * 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
JP3598609B2 (ja) * 1995-09-20 2004-12-08 双葉電子工業株式会社 スペクトル拡散通信システムにおける受信装置
US7266725B2 (en) 2001-09-03 2007-09-04 Pact Xpp Technologies Ag Method for debugging reconfigurable architectures
JPH09191301A (ja) * 1996-01-10 1997-07-22 Canon Inc スペクトラム拡散通信装置
JP2820918B2 (ja) * 1996-03-08 1998-11-05 株式会社ワイ・アール・ピー移動通信基盤技術研究所 スペクトル拡散通信装置
JPH09261128A (ja) * 1996-03-22 1997-10-03 Matsushita Electric Ind Co Ltd スペクトル拡散通信機
JP2820919B2 (ja) * 1996-03-25 1998-11-05 株式会社ワイ・アール・ピー移動通信基盤技術研究所 Cdma移動体通信システムおよび送受信機
FI961362A (fi) * 1996-03-25 1997-09-26 Nokia Telecommunications Oy Häiriöiden vähentämismenetelmä ja radiojärjestelmä
CA2250838A1 (en) * 1996-04-04 1997-10-16 Siemens Aktiengesellschaft Control of the change of telecommunications channels in a dect-specific rll/wll partial system bound to an isdn-system
US6047017A (en) 1996-04-25 2000-04-04 Cahn; Charles R. Spread spectrum receiver with multi-path cancellation
US6396804B2 (en) 1996-05-28 2002-05-28 Qualcomm Incorporated High data rate CDMA wireless communication system
US5930230A (en) 1996-05-28 1999-07-27 Qualcomm Incorporated High data rate CDMA wireless communication system
US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
DE1172942T1 (de) 1996-06-27 2003-03-06 Interdigital Tech Corp Ein Verfahren zum kontrollieren des Hochfahrens der Anfangssendeleistung in einem CDMA System unter Verwendung kurzer Kodes
JP3681230B2 (ja) * 1996-07-30 2005-08-10 松下電器産業株式会社 スペクトル拡散通信装置
US6067292A (en) * 1996-08-20 2000-05-23 Lucent Technologies Inc Pilot interference cancellation for a coherent wireless code division multiple access receiver
US6118758A (en) * 1996-08-22 2000-09-12 Tellabs Operations, Inc. Multi-point OFDM/DMT digital communications system including remote service unit with improved transmitter architecture
US6950388B2 (en) * 1996-08-22 2005-09-27 Tellabs Operations, Inc. Apparatus and method for symbol alignment in a multi-point OFDM/DMT digital communications system
US6771590B1 (en) 1996-08-22 2004-08-03 Tellabs Operations, Inc. Communication system clock synchronization techniques
US5790514A (en) * 1996-08-22 1998-08-04 Tellabs Operations, Inc. Multi-point OFDM/DMT digital communications system including remote service unit with improved receiver architecture
DE19636758C1 (de) * 1996-09-10 1998-06-10 Siemens Ag Verfahren zum Steuern des Aufbaus von Telekommunikationsverbindungen in als lokale Nachrichtenübertragungsschleifen von Telekommunikationssystemen dienenden Telekommunikationsteilsystemen mit bezüglich der Übertragungskanalanforderungen unterschiedlichen Netzabschlüssen, insbesondere "ISDN/PSTNÛDECT-spezifische RLL/WLL"-Systeme
US6259724B1 (en) * 1996-10-18 2001-07-10 Telefonaktiebolaget L M Ericsson (Publ) Random access in a mobile telecommunications system
US6111870A (en) * 1996-11-07 2000-08-29 Interdigital Technology Corporation Method and apparatus for compressing and transmitting high speed data
JP3323760B2 (ja) * 1996-11-07 2002-09-09 株式会社日立製作所 スペクトラム拡散通信システム
SE521599C2 (sv) * 1996-11-27 2003-11-18 Hitachi Ltd Sändeffektstyrmetod och apparat för mobilt kommunikationssystem
US5889827A (en) 1996-12-12 1999-03-30 Ericsson Inc. Method and apparatus for digital symbol detection using medium response estimates
DE19654595A1 (de) 1996-12-20 1998-07-02 Pact Inf Tech Gmbh I0- und Speicherbussystem für DFPs sowie Bausteinen mit zwei- oder mehrdimensionaler programmierbaren Zellstrukturen
JPH10190859A (ja) * 1996-12-20 1998-07-21 Nec Corp 無線通信システム
US6173007B1 (en) * 1997-01-15 2001-01-09 Qualcomm Inc. High-data-rate supplemental channel for CDMA telecommunications system
US5933781A (en) * 1997-01-31 1999-08-03 Qualcomm Incorporated Pilot based, reversed channel power control
US5943375A (en) * 1997-02-06 1999-08-24 At&T Wireless Services Inc. Method to indicate synchronization lock of a remote station with a base station
US5914981A (en) * 1997-02-24 1999-06-22 At&T Wireless Services Inc. Method to indicate synchronization lock of a remote station with a base station for a discrete multitone spread spectrum communications system
US5933421A (en) 1997-02-06 1999-08-03 At&T Wireless Services Inc. Method for frequency division duplex communications
WO1998035458A1 (en) * 1997-02-06 1998-08-13 At & T Wireless Services, Inc. Method of synchronizing a remote station with a base station in a discrete multitone spread spectrum communications system
US6542998B1 (en) 1997-02-08 2003-04-01 Pact Gmbh Method of self-synchronization of configurable elements of a programmable module
US6289041B1 (en) * 1997-02-11 2001-09-11 Snaptrack, Inc. Fast Acquisition, high sensitivity GPS receiver
US6360079B2 (en) 1997-02-12 2002-03-19 Interdigital Technology Corporation Global channel power control to minimize spillover in a wireless communication environment
US5842114A (en) * 1997-02-12 1998-11-24 Interdigital Technology Corporation Global channel power control to minimize spillover in a wireless communication environment
EP1271801A3 (en) * 1997-02-12 2003-04-09 Interdigital Technology Corporation Global channel power control to minimize spillover in a wireless communication environment
US5991284A (en) 1997-02-13 1999-11-23 Qualcomm Inc. Subchannel control loop
IL120222A0 (en) * 1997-02-14 1997-06-10 D S P C Israel Ltd Method and apparatus for acquiring and tracking the sampling phase of a signal
US6078645A (en) * 1997-02-20 2000-06-20 Lucent Technologies Inc. Apparatus and method for monitoring full duplex data communications
US6408016B1 (en) 1997-02-24 2002-06-18 At&T Wireless Services, Inc. Adaptive weight update method and system for a discrete multitone spread spectrum communications system
US5923700A (en) * 1997-02-24 1999-07-13 At & T Wireless Adaptive weight update method and system for a discrete multitone spread spectrum communications system
US5943331A (en) * 1997-02-28 1999-08-24 Interdigital Technology Corporation Orthogonal code synchronization system and method for spread spectrum CDMA communications
US6898197B1 (en) 1997-02-28 2005-05-24 Interdigital Technology Corporation Geolocation of a mobile terminal in a CDMA communication system
DE19708626C2 (de) * 1997-03-04 1999-08-05 Rohde & Schwarz Nach dem Spreizspektrumverfahren arbeitendes Funkkommunikationssystem
JPH10271028A (ja) * 1997-03-25 1998-10-09 Alps Electric Co Ltd セルラ−電話機の受信回路
JPH10294676A (ja) * 1997-04-17 1998-11-04 Yozan:Kk 待ち受け回路
EP1492254A1 (en) * 1997-04-17 2004-12-29 NTT DoCoMo, Inc. Code generation for a mobile communication system
US6396867B1 (en) * 1997-04-25 2002-05-28 Qualcomm Incorporated Method and apparatus for forward link power control
KR100241894B1 (ko) * 1997-05-07 2000-02-01 윤종용 개인통신 시스템의 코드분할 접속방식 기지국 시스템에서 소프트웨어 관리방법
JPH1141141A (ja) * 1997-05-21 1999-02-12 Mitsubishi Electric Corp スペクトル拡散信号受信方法及びスペクトル拡散信号受信装置
US5920278A (en) * 1997-05-28 1999-07-06 Gregory D. Gibbons Method and apparatus for identifying, locating, tracking, or communicating with remote objects
US5867525A (en) 1997-06-10 1999-02-02 L-3 Commuications Corporation Synchronizer and method therefor and communications system incorporating same
US6075792A (en) * 1997-06-16 2000-06-13 Interdigital Technology Corporation CDMA communication system which selectively allocates bandwidth upon demand
US6081536A (en) 1997-06-20 2000-06-27 Tantivy Communications, Inc. Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link
US6151332A (en) 1997-06-20 2000-11-21 Tantivy Communications, Inc. Protocol conversion and bandwidth reduction technique providing multiple nB+D ISDN basic rate interface links over a wireless code division multiple access communication system
US6542481B2 (en) * 1998-06-01 2003-04-01 Tantivy Communications, Inc. Dynamic bandwidth allocation for multiple access communication using session queues
US6456644B1 (en) 1997-06-23 2002-09-24 Cellnet Data Systems, Inc. Bandpass correlation of a spread spectrum signal
US6741638B2 (en) 1997-06-23 2004-05-25 Schlumbergersema Inc. Bandpass processing of a spread spectrum signal
US6178197B1 (en) 1997-06-23 2001-01-23 Cellnet Data Systems, Inc. Frequency discrimination in a spread spectrum signal processing system
US6628699B2 (en) * 1997-06-23 2003-09-30 Schlumberger Resource Management Systems, Inc. Receiving a spread spectrum signal
US6647058B1 (en) * 1997-06-23 2003-11-11 Paradyne Corporation Performance customization system and process for optimizing XDSL performance
US6263009B1 (en) 1997-06-23 2001-07-17 Cellnet Data Systems, Inc. Acquiring a spread spectrum signal
KR100240869B1 (ko) * 1997-06-25 2000-01-15 윤종용 이중 다이버서티 시스템을 위한 데이터 전송 방법
KR100243425B1 (ko) * 1997-07-10 2000-02-01 곽치영 씨디엠에이 무선가입자망 시스템의 순방향 트래픽 채널 전력제어 방법 및 장치
KR100258221B1 (ko) * 1997-07-25 2000-06-01 윤종용 통신시스템의 패킷 트래픽 채널의 초기화 방법
US6085106A (en) * 1997-07-29 2000-07-04 Nortel Networks Limited Forward link power control in a cellular radiotelephone system
KR100264862B1 (ko) 1997-07-31 2000-09-01 윤종용 대역확산에따른직교부호도약다중접속방식통신시스템의송수신장치및그방법
FR2767238B1 (fr) * 1997-08-07 1999-10-01 Alsthom Cge Alcatel Dispositifs monocanal et multicanaux de demodulation coherente sans pilote, et ensemble correspondant de reception a plusieurs chemins de diversite
CN1049312C (zh) * 1997-08-12 2000-02-09 李道本 一种扩频地址码的编码方法
US6877116B1 (en) * 1997-08-28 2005-04-05 Seagate Technology Llc Method and apparatus for determining bit error rate in a sampled data system without requiring read channel circuitry
US5956368A (en) * 1997-08-29 1999-09-21 Telefonaktiebolaget Lm Ericsson Downlink channel handling within a spread spectrum communications system
US6185244B1 (en) * 1997-08-29 2001-02-06 Telefonaktiebolaget Lm Ericsson Cell searching in a CDMA communications system
US6307849B1 (en) * 1997-09-08 2001-10-23 Qualcomm Incorporated Method and system for changing forward traffic channel power allocation during soft handoff
KR100365346B1 (ko) * 1997-09-09 2003-04-11 삼성전자 주식회사 이동통신시스템의쿼시직교부호생성및쿼시직교부호를이용한대역확산장치및방법
US8686549B2 (en) * 2001-09-03 2014-04-01 Martin Vorbach Reconfigurable elements
FR2769777B1 (fr) * 1997-10-13 1999-12-24 Telediffusion Fse Procede et systeme d'evaluation, a la reception, de la qualite d'un signal numerique, tel qu'un signal audio/video numerique
US6370158B1 (en) * 1997-11-14 2002-04-09 Wireless Facilities, Inc. Wireless T/E Transceiver frame signaling subcontroller
US20020051434A1 (en) * 1997-10-23 2002-05-02 Ozluturk Fatih M. Method for using rapid acquisition spreading codes for spread-spectrum communications
US6259687B1 (en) 1997-10-31 2001-07-10 Interdigital Technology Corporation Communication station with multiple antennas
US7184426B2 (en) * 2002-12-12 2007-02-27 Qualcomm, Incorporated Method and apparatus for burst pilot for a time division multiplex system
CA2220365A1 (en) * 1997-11-06 1999-05-06 Telecommunications Research Laboratories A cellular telephone location system
JPH11150523A (ja) * 1997-11-17 1999-06-02 Oki Electric Ind Co Ltd スペクトラム拡散送信装置、スペクトラム拡散受信装置及びスペクトラム拡散通信システム
JP3270015B2 (ja) * 1997-11-19 2002-04-02 沖電気工業株式会社 送信電力制御装置
JP3441636B2 (ja) * 1997-11-21 2003-09-02 株式会社エヌ・ティ・ティ・ドコモ チャネル推定値を求める装置および方法、受信装置ならびに伝送システム
JP3492177B2 (ja) * 1997-12-15 2004-02-03 松下電器産業株式会社 Cdma方式移動体通信機
US6708041B1 (en) 1997-12-15 2004-03-16 Telefonaktiebolaget Lm (Publ) Base station transmit power control in a CDMA cellular telephone system
US6134260A (en) * 1997-12-16 2000-10-17 Ericsson Inc. Method and apparatus for frequency acquisition and tracking for DS-SS CDMA receivers
US6222832B1 (en) 1998-06-01 2001-04-24 Tantivy Communications, Inc. Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system
FI106688B (fi) * 1997-12-17 2001-03-15 Nokia Networks Oy Menetelmä ISDN-käyttäjäportin tilavalvonnan toteuttamiseksi
US7936728B2 (en) 1997-12-17 2011-05-03 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US7394791B2 (en) 1997-12-17 2008-07-01 Interdigital Technology Corporation Multi-detection of heartbeat to reduce error probability
US20040160910A1 (en) * 1997-12-17 2004-08-19 Tantivy Communications, Inc. Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link
US9525923B2 (en) 1997-12-17 2016-12-20 Intel Corporation Multi-detection of heartbeat to reduce error probability
DE19861088A1 (de) 1997-12-22 2000-02-10 Pact Inf Tech Gmbh Verfahren zur Reparatur von integrierten Schaltkreisen
IT1297935B1 (it) * 1997-12-23 1999-12-20 Alsthom Cge Alcatel Procedimento e dispositivo per la rivelazione della condizione di perdita di segnale all'ingresso di un'interfaccia di linea di
ATE472861T1 (de) * 1998-02-19 2010-07-15 Qualcomm Inc Leistungsregelung der vorwärtsverbindung in einem zellularen system mit dem signal-zu-rausch- verhältnis des empfangssignals
US6289004B1 (en) 1998-03-12 2001-09-11 Interdigital Technology Corporation Adaptive cancellation of fixed interferers
US6366599B1 (en) 1998-03-16 2002-04-02 Trimble Navigation Limited Fast acquisition of spread-spectrum signals by dynamically varying spacing of search bins
US6993001B1 (en) * 1999-03-17 2006-01-31 Interdigital Technology Corporation Modular base station with variable communication capacity
EP1062749B1 (en) * 1998-03-17 2002-01-23 Interdigital Technology Corporation Modular base station with variable communication capacity
JP3109589B2 (ja) * 1998-03-18 2000-11-20 日本電気株式会社 Cdma端末の送信パワー調整方法及び装置
FI107201B (fi) * 1998-03-23 2001-06-15 Nokia Networks Oy Tiedonsiirron laadun turvaaminen tietoliikenneverkossa
CN1118151C (zh) * 1998-03-23 2003-08-13 三星电子株式会社 在cdma通信系统中控制反向链路公共信道的功率控制装置和方法
US6674739B1 (en) * 1998-03-26 2004-01-06 Samsung Electronics Co., Ltd. Device and method for assigning spreading code for reverse common channel message in CDMA communication system
KR100321979B1 (ko) * 1998-03-26 2002-02-04 윤종용 부호분할다중접속 통신시스템의 직교부호확산 채널과 준직교부호확산 채널의 전력제어장치 및 방법
KR100338662B1 (ko) * 1998-03-31 2002-07-18 윤종용 부호분할다중접속통신시스템의채널통신장치및방법
US7440498B2 (en) * 2002-12-17 2008-10-21 Tellabs Operations, Inc. Time domain equalization for discrete multi-tone systems
DK1068704T3 (da) 1998-04-03 2012-09-17 Tellabs Operations Inc Filter til impulssvarforkortning, med yderligere spektrale begrænsninger, til multibærebølgeoverførsel
KR100268677B1 (ko) * 1998-04-04 2000-10-16 윤종용 코드 분할 다중 접속 통신 시스템에서 확산 코드의 위상 획득 방법과 그 장치
US6603773B2 (en) * 1998-04-08 2003-08-05 Nokia Mobile Phones Limited Method and system for controlling the transmission power of certain parts of a radio transmission
RU2179373C2 (ru) * 1998-04-25 2002-02-10 Самсунг Электроникс Ко., Лтд. Регулирование мощности передачи между базовой станцией и мобильной станцией в системе мобильной связи
US6370397B1 (en) * 1998-05-01 2002-04-09 Telefonaktiebolaget Lm Ericsson (Publ) Search window delay tracking in code division multiple access communication systems
US6731622B1 (en) 1998-05-01 2004-05-04 Telefonaktiebolaget Lm Ericsson (Publ) Multipath propagation delay determining means using periodically inserted pilot symbols
US6324159B1 (en) * 1998-05-06 2001-11-27 Sirius Communications N.V. Method and apparatus for code division multiple access communication with increased capacity through self-noise reduction
US6486967B1 (en) * 1998-05-09 2002-11-26 Intel Corporation Recovery of bit-rotated frames during facsimile transmissions in a global system for mobile communications (GSM) network
JP2974004B1 (ja) * 1998-05-12 1999-11-08 日本電気株式会社 Cdma受信装置およびcdma通信システム
US6879571B1 (en) 1998-05-13 2005-04-12 Hitachi, Ltd. Code division multiple access mobile communication system
JP3423292B2 (ja) * 1998-05-13 2003-07-07 サムスン エレクトロニクス カンパニー リミテッド 基地局から伝送される信号を受信する移動局装置及び方法
GB2337413A (en) * 1998-05-15 1999-11-17 Nokia Mobile Phones Ltd alternative Channel Measurement in a Radio Communication system
JP2970653B1 (ja) * 1998-05-27 1999-11-02 日本電気株式会社 スペクトラム拡散通信システムとその基地局
US7221664B2 (en) * 1998-06-01 2007-05-22 Interdigital Technology Corporation Transmittal of heartbeat signal at a lower level than heartbeat request
US8134980B2 (en) 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
US7773566B2 (en) 1998-06-01 2010-08-10 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
FR2779590B1 (fr) * 1998-06-03 2000-07-07 Commissariat Energie Atomique Recepteur pour systeme amrc
US6744754B1 (en) * 1998-06-09 2004-06-01 Lg Information & Communications, Ltd. Control of forward link power CDMA mobile communication system
JP3517214B2 (ja) * 1998-06-13 2004-04-12 サムスン エレクトロニクス カンパニー リミテッド 符号分割多重接続方式の移動通信システムでの基地局と移動局間の状態同期化方法
JP2000078058A (ja) * 1998-06-15 2000-03-14 Katsuyoshi Azeyanagi マッチドフィルタ出力分析・干渉波制御形cdma通信方式
US6429846B2 (en) 1998-06-23 2002-08-06 Immersion Corporation Haptic feedback for touchpads and other touch controls
US7068617B1 (en) * 1998-06-25 2006-06-27 Texas Instruments Incorporated Low complexity CDMA receiver
US6034971A (en) * 1998-06-30 2000-03-07 Motorola, Inc. Method and apparatus for controlling communication system capacity
US6320896B1 (en) * 1998-07-14 2001-11-20 Intermec Ip Corp. RF receiver having frequency-hopping/direct-sequence spread spectrum signal discrimination
FI106896B (fi) * 1998-07-22 2001-04-30 Nokia Networks Oy Tiedonsiirtomenetelmä, radioverkkoalijärjestelmä ja tilaajapäätelaite
ID28508A (id) * 1998-07-28 2001-05-31 Samsung Electronics Co Ltd Pengiriman berpalang dalam keadaan terkontrol pada sistem komunikasi cdma
KR100306285B1 (ko) * 1998-07-28 2001-11-01 윤종용 부호분할다중접속 통신시스템의 제어유지상태에서 단속적 송신방법 및 장치
US6587696B1 (en) * 1998-07-31 2003-07-01 Nokia Mobile Phones Limited Power control technique utilizing forward pilot channel
US6501747B1 (en) * 1998-08-20 2002-12-31 Metawave Communications Corporation Manifold assisted channel estimation and demodulation for CDMA systems in fast fading environments
US6331998B1 (en) * 1998-08-28 2001-12-18 Industrial Technology Research Institute Partially matched filter for spread spectrum communication
DE19839633C2 (de) * 1998-08-31 2002-01-10 Siemens Ag Steuereinrichtung zur Zuweisung von Eingangssignalen zu Übertragungskanälen
US6396817B2 (en) * 1998-08-31 2002-05-28 Qualcomm Incorporated Signal splitting method for limiting peak power in a CDMA system
US6192222B1 (en) * 1998-09-03 2001-02-20 Micron Technology, Inc. Backscatter communication systems, interrogators, methods of communicating in a backscatter system, and backscatter communication methods
KR100272431B1 (ko) * 1998-09-03 2000-11-15 김영환 Cdma 이동통신시스템의 통화권역 확장장치 및 그 방법
KR20000019059A (ko) * 1998-09-08 2000-04-06 윤종용 무선 가입자망 시스템에서 데이터 전송방식에 따른 자원할당및 해제방법
PL344083A1 (en) * 1998-09-08 2001-09-24 Samsung Electronics Co Ltd Device and method for generating quaternary complex quasi-orthogonal code and spreading transmission signal using quasi-orthogonal code in cdma communication system
US6765953B1 (en) * 1998-09-09 2004-07-20 Qualcomm Incorporated User terminal parallel searcher
US7324544B1 (en) * 1998-09-11 2008-01-29 Cirrus Logic, Inc. Network slot synchronization scheme for a computer network communication channel
US6173006B1 (en) * 1998-09-11 2001-01-09 Lg Information & Communications, Ltd. Direct sequence CDMA device and method for using the same
US6208684B1 (en) * 1998-09-18 2001-03-27 Dspc Technologies Ltd. Cyclic adaptive receivers for DS-CDMA signals
US6956840B1 (en) 1998-09-21 2005-10-18 Ipr Licensing, Inc. Power control protocol for highly variable data rate reverse link of a wireless communication system
DE59913668D1 (de) * 1998-09-22 2006-08-24 Siemens Ag Verfahren zum empfangen oder senden von nachrichten
US6944149B1 (en) * 1998-09-24 2005-09-13 Samsung Electronics Co., Ltd. Apparatus and method or searching for PN sequence phase in multi-carrier CDMA mobile communication system
US6181674B1 (en) * 1998-09-30 2001-01-30 Conexant Systems, Inc. Method and apparatus for sharing transmit shaping filters among phase shifted signals
US6243561B1 (en) * 1998-10-13 2001-06-05 Qualcomm Incorporated Offline page monitoring
KR100407523B1 (ko) * 1998-10-27 2003-11-28 지멘스 악티엔게젤샤프트 이동 및/또는 고정 송수신 장치사이에서 무선 통신을 수행하는 통신 시스템, 특히 제 3 세대 이동 무선 시스템에서 얼리-레이트 트래킹을 수행하는 레이크 수신기에서 메모리 액세스를 제어하는 방법
US6928066B1 (en) * 1998-11-09 2005-08-09 Samsung Electronics Co., Ltd. RSMA control device and method for mobile communication system
CA2282800C (en) * 1998-11-09 2007-07-31 Lucent Technologies Inc. A coherent combining/noncoherent detection (ccnd) method and apparatus for detecting a pilot signal in a wireless communication system
US6128330A (en) 1998-11-24 2000-10-03 Linex Technology, Inc. Efficient shadow reduction antenna system for spread spectrum
US6295289B1 (en) * 1998-11-30 2001-09-25 Nokia Mobile Phones, Ltd. Power control in a transmitter
EP1050124A1 (en) * 1998-11-30 2000-11-08 Nokia Corporation Test facility for transceiver station
US6728202B1 (en) * 1998-12-24 2004-04-27 Agere Systems Inc. Code division multiplex satellite broadcasting system
US6278702B1 (en) * 1998-12-02 2001-08-21 Nortel Networks Limited Method for limiting the dynamic range of a CDMA signal
KR100277697B1 (ko) * 1998-12-02 2001-01-15 정선종 제약조건을 갖는 평균평방 오차 최소화 방법을 이용한 적응형수신 장치
KR100312214B1 (ko) * 1998-12-08 2001-12-12 윤종용 부호분할다중접속통신시스템의채널확산장치및방법
US6337980B1 (en) 1999-03-18 2002-01-08 Hughes Electronics Corporation Multiple satellite mobile communications method and apparatus for hand-held terminals
US6366622B1 (en) * 1998-12-18 2002-04-02 Silicon Wave, Inc. Apparatus and method for wireless communications
US6366604B1 (en) * 1998-12-18 2002-04-02 Philips Electric North America Corporation Compensation for phase errors caused by clock jitter in a CDMA communication system
US6567418B1 (en) 1998-12-23 2003-05-20 At&T Corp. System and method for multichannel communication
US6470005B1 (en) * 1998-12-29 2002-10-22 Thomson Licensing Sa Transceiver prerotation based on carrier offset
KR100520161B1 (ko) * 1998-12-30 2005-11-24 삼성전자주식회사 국설교환기와isdn키폰시스템과의코딩변환회로
US6125378A (en) * 1999-01-13 2000-09-26 Barbano; Paolo Emilio Method and apparatus for generating families of code signals using multiscale shuffling
IL128262A0 (en) * 1999-01-28 1999-11-30 Israel State Dsss receiver
US6487252B1 (en) * 1999-01-29 2002-11-26 Motorola, Inc. Wireless communication system and method for synchronization
JP3618055B2 (ja) * 1999-02-05 2005-02-09 富士通株式会社 携帯移動端末および送信装置
GB2346776B (en) * 1999-02-13 2001-09-12 Motorola Ltd Synchronisation lock detector and method
US6463296B1 (en) * 1999-02-16 2002-10-08 Telefonaktiebolaget L M Ericsson (Publ) Power control in a CDMA mobile communications system
US6459695B1 (en) * 1999-02-22 2002-10-01 Lucent Technologies Inc. System and method for determining radio frequency coverage trouble spots in a wireless communication system
JP3362009B2 (ja) * 1999-03-01 2003-01-07 シャープ株式会社 スペクトル拡散通信装置
US7592898B1 (en) * 1999-03-09 2009-09-22 Keystone Technology Solutions, Llc Wireless communication systems, interrogators and methods of communicating within a wireless communication system
US6603391B1 (en) * 1999-03-09 2003-08-05 Micron Technology, Inc. Phase shifters, interrogators, methods of shifting a phase angle of a signal, and methods of operating an interrogator
US6356764B1 (en) * 1999-03-09 2002-03-12 Micron Technology, Inc. Wireless communication systems, interrogators and methods of communicating within a wireless communication system
US6721293B1 (en) * 1999-03-10 2004-04-13 Nokia Corporation Unsupervised adaptive chip separation filter for CDMA terminal
US6603800B1 (en) * 1999-03-22 2003-08-05 Interdigital Technology Corporation CDMA location
MY128631A (en) * 1999-03-22 2007-02-28 Interdigital Tech Corp Outer loop/weighted open loop power control in a time division duplex communication system
DE19913371A1 (de) * 1999-03-24 2000-10-19 Siemens Ag Initiale Sendeleistungseinstellung für die Abwärtsrichtung von W-CDMA Funk-Kommunikationssystemen
US6304216B1 (en) * 1999-03-30 2001-10-16 Conexant Systems, Inc. Signal detector employing correlation analysis of non-uniform and disjoint sample segments
US6452917B1 (en) * 1999-04-08 2002-09-17 Qualcomm Incorporated Channel estimation in a CDMA wireless communication system
US6249683B1 (en) 1999-04-08 2001-06-19 Qualcomm Incorporated Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel
US6334047B1 (en) 1999-04-09 2001-12-25 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive power control in a mobile radio communications system
KR100374336B1 (ko) * 1999-04-12 2003-03-04 삼성전자주식회사 부호분할다중접속 통신시스템의 단속 송신 장치 및 방법
US6404758B1 (en) * 1999-04-19 2002-06-11 Ericsson, Inc. System and method for achieving slot synchronization in a wideband CDMA system in the presence of large initial frequency errors
US6445930B1 (en) 1999-04-21 2002-09-03 Joseph Peter Bartelme Power control system and method for use with wireless communications system
JP2000307477A (ja) 1999-04-21 2000-11-02 Matsushita Electric Ind Co Ltd 符号発生装置、その装置を用いた通信装置、通信システム及び符号発生方法
DE19918386C2 (de) * 1999-04-22 2003-08-28 Siemens Ag Verfahren und Vorrichtung zum Decodieren eines Codemultiplex-Signals sowie Verwendung der Vorrichtung
US6400755B1 (en) * 1999-04-23 2002-06-04 Motorola, Inc. Data transmission within a spread-spectrum communication system
US6614776B1 (en) * 1999-04-28 2003-09-02 Tantivy Communications, Inc. Forward error correction scheme for high rate data exchange in a wireless system
WO2000069086A1 (en) 1999-05-10 2000-11-16 Sirius Communications N.V. Method and apparatus for high-speed software reconfigurable code division multiple access communication
TW472468B (en) * 1999-05-10 2002-01-11 Sony Electronics Inc A scalable method for generating long codes using gold sequences
US7372888B1 (en) 1999-05-10 2008-05-13 Agilent Technologies Inc. Method and apparatus for software reconfigurable communication transmission/reception and navigation signal reception
US6850507B1 (en) * 1999-05-12 2005-02-01 Samsung Electronics Co., Ltd. Apparatus and method for acquiring PN sequence in multicarrier CDMA mobile communication system
US7085246B1 (en) 1999-05-19 2006-08-01 Motorola, Inc. Method and apparatus for acquisition of a spread-spectrum signal
JP4557331B2 (ja) * 1999-05-20 2010-10-06 キヤノン株式会社 情報処理装置、情報処理システム、動作制御方法、及びコンピュータ読み取り可能な記録媒体
WO2000072614A1 (en) * 1999-05-21 2000-11-30 Chunyan Liu Wireless communication systems and methods using packet division multiple access
US6917607B1 (en) * 1999-05-31 2005-07-12 Samsung Electronics Co., Ltd. Apparatus and method for gated transmission in CDMA communication system
US7072410B1 (en) * 1999-06-01 2006-07-04 Peter Monsen Multiple access system and method for multibeam digital radio systems
AU5001300A (en) * 1999-06-01 2000-12-18 Peter Monsen Multiple access system and method for multibeam digital radio systems
US8230411B1 (en) * 1999-06-10 2012-07-24 Martin Vorbach Method for interleaving a program over a plurality of cells
US6434367B1 (en) 1999-06-11 2002-08-13 Lucent Technologies Inc. Using decoupled power control sub-channel to control reverse-link channel power
US6507572B1 (en) 1999-06-11 2003-01-14 Lucent Technologies Inc. Primary transfer for simplex mode forward-link high-speed packet data services in CDMA systems
US6631126B1 (en) 1999-06-11 2003-10-07 Lucent Technologies Inc. Wireless communications using circuit-oriented and packet-oriented frame selection/distribution functions
US6757270B1 (en) 1999-06-11 2004-06-29 Lucent Technologies Inc. Low back haul reactivation delay for high-speed packet data services in CDMA systems
JP3329383B2 (ja) * 1999-06-23 2002-09-30 日本電気株式会社 逆拡散器とタイミング検出装置とチャネル推定装置および周波数誤差測定方法とafc制御方法
RU2208297C2 (ru) * 1999-06-25 2003-07-10 Самсунг Электроникс Ко., Лтд. Устройство и способ канального кодирования и мультиплексирования в системе связи множественного доступа с кодовым разделением каналов
US6625128B1 (en) * 1999-06-28 2003-09-23 Legerity, Inc. Method and apparatus for prioritizing packet data transmission and reception
ES2177209T3 (es) * 1999-07-02 2002-12-01 Cit Alcatel Un metodo para resolver colisiones de capas fisicas en un protocolo deacceso aleatorio, y un receptor correspondiente.
GB2351864B (en) * 1999-07-05 2004-05-26 Symmetricom Inc A receiver for receiving rf pseudo-random encoded signals
JP3715141B2 (ja) * 1999-07-13 2005-11-09 松下電器産業株式会社 通信端末装置
US7327779B1 (en) 1999-07-23 2008-02-05 Agilent Technologies, Inc. Method and apparatus for high-speed software reconfigurable code division multiple access communication
US6580774B1 (en) * 1999-08-05 2003-06-17 Occam Networks Method and apparatus to perform cell synchronization in an asynchronous transfer mode network
KR100361223B1 (ko) * 1999-08-14 2002-11-23 주식회사 모리아테크놀로지 무선 이동통신에서 파일럿 채널 상에 페이징 정보를 천공시키는 시스템
KR100363944B1 (ko) * 1999-08-16 2002-12-11 한국전자통신연구원 상이한 규격의 이동통신 시스템간의 글로벌 로밍을 위한 인증 시스템 및 그 인증 방법
KR100396287B1 (ko) * 1999-08-30 2003-09-02 삼성전자주식회사 부호분할다중접속 통신시스템의 전력제어장치 및 방법
US6735242B1 (en) * 1999-08-30 2004-05-11 Nokia Corporation Time tracking loop for pilot aided direct sequence spread spectrum systems
US7085580B1 (en) * 1999-08-30 2006-08-01 Lucent Technologies Inc. Aggregate power measurement
US7110434B2 (en) * 1999-08-31 2006-09-19 Broadcom Corporation Cancellation of interference in a communication system with application to S-CDMA
FI19991871A (fi) * 1999-09-02 2001-03-02 Nokia Networks Oy Menetelmä signaalikomponenttien käsittelemiseksi kommunikaatiojärjestelmässä ja vastanotin
JP2001086032A (ja) * 1999-09-10 2001-03-30 Pioneer Electronic Corp 通信装置及び通信方法
US6115406A (en) * 1999-09-10 2000-09-05 Interdigital Technology Corporation Transmission using an antenna array in a CDMA communication system
US6278726B1 (en) 1999-09-10 2001-08-21 Interdigital Technology Corporation Interference cancellation in a spread spectrum communication system
US6968493B1 (en) * 1999-09-14 2005-11-22 Maxtor Corporation Randomizer systems for producing multiple-symbol randomizing sequences
SE516225C2 (sv) * 1999-09-17 2001-12-03 Ericsson Telefon Ab L M Ett förfarande för effektkontroll och ett radiosystem
KR20010028099A (ko) * 1999-09-17 2001-04-06 박종섭 코드 분할 다중 접속방식을 이용한 수신기에서의 동기 추적장치 및 그 방법
KR100346227B1 (ko) * 1999-09-18 2002-08-01 삼성전자 주식회사 부호분할다중접속 이동통신시스템에서의 잡음전력 추정장치 및방법
US6714527B2 (en) * 1999-09-21 2004-03-30 Interdigital Techology Corporation Multiuser detector for variable spreading factors
US6526034B1 (en) 1999-09-21 2003-02-25 Tantivy Communications, Inc. Dual mode subscriber unit for short range, high rate and long range, lower rate data communications
DE60017424T2 (de) * 1999-09-21 2005-12-29 Interdigital Technology Corp., Wilmington Mehrbenutzerdetektor für variable spreizfaktoren
KR100594042B1 (ko) * 1999-09-22 2006-06-28 삼성전자주식회사 비동기 이동통신시스템의 멀티 스크램블링 코드 생성 장치 및 방법
US6658042B1 (en) * 1999-09-24 2003-12-02 Koninklijke Philips Electronics N.V. Method and apparatus for time tracking a signal using hardware and software
US6320853B1 (en) 1999-09-27 2001-11-20 Metawave Communications Corporation Method of phase recovery in cellular communication systems
DE19946872A1 (de) * 1999-09-30 2001-05-03 Bosch Gmbh Robert Datenübertragungsverfahren- und vorrichtung
DE19948370A1 (de) * 1999-10-06 2001-06-21 Infineon Technologies Ag Einrichtung und Verfahren zur Verarbeitung eines digitalen Datensignals in einem CDMA-Funksender
US6414951B1 (en) 1999-10-08 2002-07-02 Interdigital Technology Corporation Method for detecting short codes in CDMA systems
US8363757B1 (en) 1999-10-12 2013-01-29 Qualcomm Incorporated Method and apparatus for eliminating the effects of frequency offsets in a digital communication system
FI111579B (fi) * 1999-10-13 2003-08-15 U Nav Microelectronics Corp Hajaspektrivastaanotin
US6643280B1 (en) * 1999-10-27 2003-11-04 Lucent Technologies Inc. Method and apparatus for generation of CDMA long codes
JP3525828B2 (ja) * 1999-11-01 2004-05-10 株式会社日立製作所 位置登録制御方法とそれを用いた移動局装置
CN1138354C (zh) * 1999-11-11 2004-02-11 华为技术有限公司 码分多址技术和变速率图像压缩编码技术相结合的传输方法
US6483867B1 (en) 1999-11-22 2002-11-19 Nokia Mobile Phones Ltd. Tracking loop realization with adaptive filters
SE516662C2 (sv) * 1999-11-26 2002-02-12 Ericsson Telefon Ab L M Förfarande för effektallokering för nedlänkkanaler i ett nedlänk effektbegränsat kommunikationssystem
KR100584150B1 (ko) * 1999-11-30 2006-05-26 엘지전자 주식회사 통신 시스템에서 무선장치의 오류진단 방법
JP2001168777A (ja) * 1999-12-06 2001-06-22 Matsushita Electric Ind Co Ltd 通信端末装置及び無線通信方法
GB9929132D0 (en) * 1999-12-10 2000-02-02 Koninkl Philips Electronics Nv Spread spectrum receiver
US6282231B1 (en) 1999-12-14 2001-08-28 Sirf Technology, Inc. Strong signal cancellation to enhance processing of weak spread spectrum signal
JP3937380B2 (ja) 1999-12-14 2007-06-27 富士通株式会社 パスサーチ回路
KR100355376B1 (ko) * 1999-12-15 2002-10-12 삼성전자 주식회사 비동기형 광대역 직접 시퀀스 코드분할다중접속수신신호에 대한 동기획득 장치
DE60036280T2 (de) * 1999-12-16 2008-11-06 Seiko Epson Corp. Nichtzyklischer digitaler filter, und funkempfangsgerät mit dem filter
US8463255B2 (en) * 1999-12-20 2013-06-11 Ipr Licensing, Inc. Method and apparatus for a spectrally compliant cellular communication system
US6473596B1 (en) * 1999-12-20 2002-10-29 The United States Of America As Represented By The Secretary Of The Air Force Close proximity transmitter interference limiting
KR100417824B1 (ko) * 1999-12-23 2004-02-05 엘지전자 주식회사 코드분할다중접속 패킷 데이터 시스템에서의 채널 동적 할당 방법
US6606363B1 (en) 1999-12-28 2003-08-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for estimating a frequency offset by combining pilot symbols and data symbols
US6628673B1 (en) * 1999-12-29 2003-09-30 Atheros Communications, Inc. Scalable communication system using overlaid signals and multi-carrier frequency communication
US7133439B1 (en) * 2000-01-12 2006-11-07 Mitsubishi Denki Kabushiki Kaisha Mobile communication terminal and method of communication
US6831942B2 (en) * 2000-01-14 2004-12-14 University Of Hong Kong MPSK spread spectrum communications receiver with carrier recovery and tracking using weighted correlation techniques
EP1117185A1 (en) * 2000-01-14 2001-07-18 Lucent Technologies Inc. Method and rake receiver for code-tracking in CDMA communication systems
EP1117186A1 (en) * 2000-01-14 2001-07-18 Lucent Technologies Inc. Adaptive code-tracking RAKE receiver for direct-sequence code-division multiple access (cdma) communications
JP3507882B2 (ja) * 2000-01-18 2004-03-15 独立行政法人農業・生物系特定産業技術研究機構 単純な演算要素による任意関数発生回路並びにそれを用いた暗号化方法
US6822635B2 (en) * 2000-01-19 2004-11-23 Immersion Corporation Haptic interface for laptop computers and other portable devices
US6601078B1 (en) * 2000-01-27 2003-07-29 Lucent Technologies Inc. Time-efficient real-time correlator
US6895036B2 (en) * 2000-01-28 2005-05-17 Infineon Technologies Ag Apparatus and method for sub-chip offset correlation in spread-spectrum communication systems
US6937578B1 (en) * 2000-02-02 2005-08-30 Denso Corporation Fast-sleep configuration for CDMA slotted mode
AU3673001A (en) 2000-02-07 2001-08-14 Tantivy Communications, Inc. Minimal maintenance link to support synchronization
US7590095B2 (en) 2000-02-14 2009-09-15 Qualcomm Incorporated Method and apparatus for power control of multiple channels in a wireless communication system
US6801564B2 (en) * 2000-02-23 2004-10-05 Ipr Licensing, Inc. Reverse link correlation filter in wireless communication systems
US6823193B1 (en) 2000-02-28 2004-11-23 Telefonaktiebolaget Lm Ericsson (Publ) Downlink transmit power synchronization during diversity communication with a mobile station
US6542756B1 (en) 2000-02-29 2003-04-01 Lucent Technologies Inc. Method for detecting forward link power control bits in a communication system
EP1130792A1 (en) * 2000-03-03 2001-09-05 Lucent Technologies Inc. A method and rake receiver for phasor estimation in communication systems
US6865393B1 (en) 2000-03-03 2005-03-08 Motorola, Inc. Method and system for excess resource distribution in a communication system
US7088765B1 (en) * 2000-03-15 2006-08-08 Ndsu Research Foundation Vector calibration system
US6724778B1 (en) * 2000-03-16 2004-04-20 Motorola, Inc. Method and apparatus for long code generation in synchronous, multi-chip rate systems
JP3519338B2 (ja) * 2000-03-24 2004-04-12 松下電器産業株式会社 受信装置及び利得制御方法
ATE465556T1 (de) * 2000-03-28 2010-05-15 Interdigital Tech Corp Cdma system, welches vor dem senden eine vordrehung benutzt
US6895033B1 (en) 2000-03-29 2005-05-17 Motorola Inc. Method and apparatus for call recovery after a power cut for a CDMA cellular phone
JP3424647B2 (ja) * 2000-04-04 2003-07-07 日本電気株式会社 Cdma送受信機
US6683903B1 (en) * 2000-04-27 2004-01-27 Motorola, Inc. Method and apparatus for synchronization within a spread-spectrum communication system
US6810072B1 (en) * 2000-05-30 2004-10-26 Nokia Corporation System for acquiring spread spectrum signals
US6956841B1 (en) * 2000-05-24 2005-10-18 Nokia Networks Oy Receiver and method of receiving a desired signal
US6385462B1 (en) 2000-05-26 2002-05-07 Motorola, Inc. Method and system for criterion based adaptive power allocation in a communication system with selective determination of modulation and coding
SE517039C2 (sv) * 2000-05-31 2002-04-02 Bjoern Ottersten Anordning och metod för kanalinterferensdämpning
US6879627B1 (en) * 2000-06-01 2005-04-12 Shiron Satellite Communications (1996) Ltd. Variable rate continuous mode satellite modem
JP2001345738A (ja) * 2000-06-06 2001-12-14 Sony Corp 同期検出装置
EP2226732A3 (de) 2000-06-13 2016-04-06 PACT XPP Technologies AG Cachehierarchie für einen Multicore-Prozessor
KR100605973B1 (ko) * 2000-06-27 2006-07-28 삼성전자주식회사 이동통신 시스템의 링크적응 방법 및 장치
KR100627188B1 (ko) * 2000-07-04 2006-09-22 에스케이 텔레콤주식회사 무선통신 역방향 동기 방식에서의 코드 할당 방법
CN100409486C (zh) * 2000-07-10 2008-08-06 安德鲁公司 蜂窝天线
US7068725B2 (en) * 2000-07-10 2006-06-27 Garmin At, Inc. Bit detection threshold in a TDMA burst communication system
JP3735015B2 (ja) * 2000-07-26 2006-01-11 松下電器産業株式会社 回線推定装置および回線推定方法
US6816732B1 (en) * 2000-07-27 2004-11-09 Ipr Licensing, Inc. Optimal load-based wireless session context transfer
DE10036803A1 (de) * 2000-07-28 2002-02-07 Tesa Ag Haftklebemassen auf Basis von Blockcopolymeren der Struktur P(A/C)-P(B)-P(A/C)
US6981010B1 (en) 2000-08-02 2005-12-27 Board Of Regents Of The University Of Nebraska System and method for generating psuedo-noise sequences
WO2002013400A2 (en) 2000-08-03 2002-02-14 Morphics Technology, Inc. Flexible preamble processing
US20020057730A1 (en) * 2000-08-04 2002-05-16 Jonas Karlsson Spreading factor detector
US6813710B1 (en) * 2000-08-10 2004-11-02 Chung Shan Institute Of Science And Technology Invisible electronic signature
US6895217B1 (en) 2000-08-21 2005-05-17 The Directv Group, Inc. Stratospheric-based communication system for mobile users having adaptive interference rejection
JP3530118B2 (ja) * 2000-08-29 2004-05-24 松下電器産業株式会社 基地局装置および無線通信方法
JP3497480B2 (ja) * 2000-09-04 2004-02-16 松下電器産業株式会社 位相回転検出装置及びそれを備えた無線基地局装置
FR2813729B1 (fr) * 2000-09-07 2004-11-05 Mitsubishi Electric Inf Tech Recepteur cdma adaptatif uni-modulaire
KR100342496B1 (ko) * 2000-09-08 2002-06-28 윤종용 고속 서처의 직교확산부호 가설 변경 장치 및 방법
US7317916B1 (en) * 2000-09-14 2008-01-08 The Directv Group, Inc. Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection
US6853633B1 (en) * 2000-09-26 2005-02-08 Ericsson Inc. Methods of providing signal parameter information using delta-modulation and related systems and terminals
US8058899B2 (en) 2000-10-06 2011-11-15 Martin Vorbach Logic cell array and bus system
KR100355270B1 (ko) * 2000-10-11 2002-10-11 한국전자통신연구원 시분할 방법을 이용하는 핑거와, 이를 구비한 레이크 수신기
US6735216B2 (en) * 2000-10-11 2004-05-11 Qualcomm, Inc. Simplified quality indicator bit test procedures
JP4228533B2 (ja) * 2000-10-18 2009-02-25 沖電気工業株式会社 光パス交換装置
KR100438447B1 (ko) * 2000-10-20 2004-07-03 삼성전자주식회사 이동통신시스템에서 버스트 파일롯 송신장치 및 방법
US6718180B1 (en) 2000-10-24 2004-04-06 Telefonaktiebolaget Lm Ericsson (Publ) Power level convergence in a communications system
FI113921B (fi) * 2000-10-30 2004-06-30 Nokia Corp Vastaanotin, vastaanottomenetelmä, tietokoneohjelma ja tietokoneen muistiväline
US6678707B1 (en) * 2000-10-30 2004-01-13 Hewlett-Packard Development Company, L.P. Generation of cryptographically strong random numbers using MISRs
US7009947B2 (en) * 2000-11-02 2006-03-07 Denso Corporation Integrity of pilot phase offset measurements for predicting pilot strength
EP1249951B1 (en) * 2000-11-16 2016-06-01 Sony Corporation Communication apparatus
JP3589292B2 (ja) * 2000-11-30 2004-11-17 日本電気株式会社 移動体通信装置
US8155096B1 (en) 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
US6980803B2 (en) 2000-12-04 2005-12-27 Telefonaktiebolaget Lm Ericsson (Publ) Using statistically ascertained position for starting synchronization searcher during diversity handover
US6954644B2 (en) 2000-12-04 2005-10-11 Telefonaktiebolaget Lm Ericsson (Publ) Using geographical coordinates to determine mobile station time position for synchronization during diversity handover
US6907245B2 (en) 2000-12-04 2005-06-14 Telefonaktiebolaget Lm Ericsson (Publ) Dynamic offset threshold for diversity handover in telecommunications system
US7400857B2 (en) 2000-12-12 2008-07-15 The Directv Group, Inc. Communication system using multiple link terminals
US6952580B2 (en) * 2000-12-12 2005-10-04 The Directv Group, Inc. Multiple link internet protocol mobile communications system and method therefor
US7103317B2 (en) * 2000-12-12 2006-09-05 The Directv Group, Inc. Communication system using multiple link terminals for aircraft
FR2818485B1 (fr) * 2000-12-18 2003-03-28 Eads Defence & Security Ntwk Procede d'allocation de ressources radio, station de base pour sa mise en oeuvre et systeme l'incorporant
CN1120591C (zh) * 2000-12-18 2003-09-03 信息产业部电信传输研究所 直接扩频/码分多址综合扩频相干接收装置
CN1140075C (zh) * 2000-12-18 2004-02-25 信息产业部电信传输研究所 基于多径能量窗的码分多址系统初始同步与小区搜索装置
FR2819126B1 (fr) * 2000-12-29 2003-03-21 Commissariat Energie Atomique Circuit numerique d'emission/reception dans un systeme cdma
FR2819125B1 (fr) * 2000-12-29 2004-04-02 Commissariat Energie Atomique Dispositif d'echange de donnees numeriques dans un systeme cdma
CN1205540C (zh) * 2000-12-29 2005-06-08 深圳赛意法微电子有限公司 含有解码器的电路、时分寻址的方法和一个微控制器
DE60238732D1 (de) * 2001-01-18 2011-02-10 Ntt Docomo Inc Vorrichtung und Verfahren zur Sendeleistungsregelung und Mobilstation
US7809403B2 (en) * 2001-01-19 2010-10-05 The Directv Group, Inc. Stratospheric platforms communication system using adaptive antennas
US7187949B2 (en) 2001-01-19 2007-03-06 The Directv Group, Inc. Multiple basestation communication system having adaptive antennas
US8396513B2 (en) 2001-01-19 2013-03-12 The Directv Group, Inc. Communication system for mobile users using adaptive antenna
DE10102709B4 (de) * 2001-01-22 2014-02-06 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Synchronisation auf eine Pilotsequenz eines CDMA-Signals
US7230910B2 (en) * 2001-01-30 2007-06-12 Lucent Technologies Inc. Optimal channel sounding system
US7551663B1 (en) 2001-02-01 2009-06-23 Ipr Licensing, Inc. Use of correlation combination to achieve channel detection
US6529850B2 (en) * 2001-02-01 2003-03-04 Thomas Brian Wilborn Apparatus and method of velocity estimation
US6954448B2 (en) 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
US20050251844A1 (en) * 2001-02-02 2005-11-10 Massimiliano Martone Blind correlation for high precision ranging of coded OFDM signals
US8106828B1 (en) 2005-11-22 2012-01-31 Trueposition, Inc. Location identification using broadcast wireless signal signatures
US6970132B2 (en) * 2001-02-02 2005-11-29 Rosum Corporation Targeted data transmission and location services using digital television signaling
US8677440B2 (en) 2001-02-02 2014-03-18 Trueposition, Inc. Position determination using ATSC-M/H signals
US20050066373A1 (en) * 2001-02-02 2005-03-24 Matthew Rabinowitz Position location using broadcast digital television signals
US7463195B2 (en) * 2001-06-21 2008-12-09 Rosum Corporation Position location using global positioning signals augmented by broadcast television signals
US6559800B2 (en) * 2001-02-02 2003-05-06 Rosum Corporation Position location using broadcast analog television signals
US7042396B2 (en) * 2001-08-17 2006-05-09 Rosom Corporation Position location using digital audio broadcast signals
US7471244B2 (en) * 2001-02-02 2008-12-30 Rosum Corporation Monitor units for television signals
US6963306B2 (en) * 2001-02-02 2005-11-08 Rosum Corp. Position location and data transmission using pseudo digital television transmitters
US7126536B2 (en) * 2001-02-02 2006-10-24 Rosum Corporation Position location using terrestrial digital video broadcast television signals
US8233091B1 (en) 2007-05-16 2012-07-31 Trueposition, Inc. Positioning and time transfer using television synchronization signals
US20020184653A1 (en) 2001-02-02 2002-12-05 Pierce Matthew D. Services based on position location using broadcast digital television signals
US8102317B2 (en) * 2001-02-02 2012-01-24 Trueposition, Inc. Location identification using broadcast wireless signal signatures
US8754807B2 (en) 2001-02-02 2014-06-17 Trueposition, Inc. Time, frequency, and location determination for femtocells
US7068616B2 (en) * 2001-02-05 2006-06-27 The Directv Group, Inc. Multiple dynamic connectivity for satellite communications systems
EP1231721A1 (en) * 2001-02-12 2002-08-14 Telefonaktiebolaget Lm Ericsson Method for controlling receive signal levels at a network node in TDMA point to multi-point radio communications systems
US7158474B1 (en) * 2001-02-21 2007-01-02 At&T Corp. Interference suppressing OFDM system for wireless communications
US6970716B2 (en) 2001-02-22 2005-11-29 Telefonaktiebolaget Lm Ericsson (Publ) Power control for downlink shared channel in radio access telecommunications network
US7006483B2 (en) 2001-02-23 2006-02-28 Ipr Licensing, Inc. Qualifying available reverse link coding rates from access channel power setting
US9037807B2 (en) 2001-03-05 2015-05-19 Pact Xpp Technologies Ag Processor arrangement on a chip including data processing, memory, and interface elements
US7444531B2 (en) 2001-03-05 2008-10-28 Pact Xpp Technologies Ag Methods and devices for treating and processing data
US6930990B2 (en) * 2001-03-23 2005-08-16 Lucent Technologies Inc. Serial communications link for a base stations
DE10115410A1 (de) * 2001-03-29 2002-10-24 Bosch Gmbh Robert Busstation zum Anschluß an ein Bussystem für Rückhaltemittel und/oder Sensoren
US20030021271A1 (en) * 2001-04-03 2003-01-30 Leimer Donald K. Hybrid wireless communication system
US7274677B1 (en) * 2001-04-16 2007-09-25 Cisco Technology, Inc. Network management architecture
US7298463B2 (en) * 2001-04-23 2007-11-20 Circadiant Systems, Inc. Automated system and method for optical measurement and testing
US7133125B2 (en) * 2001-04-23 2006-11-07 Circadiant Systems, Inc. Automated system and method for determining the sensitivity of optical components
US7583728B2 (en) 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7423987B2 (en) 2001-04-27 2008-09-09 The Directv Group, Inc. Feeder link configurations to support layered modulation for digital signals
US7822154B2 (en) 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
US8005035B2 (en) 2001-04-27 2011-08-23 The Directv Group, Inc. Online output multiplexer filter measurement
US7639759B2 (en) 2001-04-27 2009-12-29 The Directv Group, Inc. Carrier to noise ratio estimations from a received signal
US7471735B2 (en) 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7778365B2 (en) * 2001-04-27 2010-08-17 The Directv Group, Inc. Satellite TWTA on-line non-linearity measurement
EP1255121B1 (en) * 2001-05-04 2005-01-05 Deutsches Zentrum für Luft- und Raumfahrt e.V. A method for reducing multipath interferences errors in a navigation receiver
US6735606B2 (en) * 2001-05-15 2004-05-11 Qualcomm Incorporated Multi-sequence fast slewing pseudorandom noise generator
US6850500B2 (en) * 2001-05-15 2005-02-01 Interdigital Technology Corporation Transmission power level estimation
US6680968B2 (en) * 2001-05-17 2004-01-20 Qualcomm Incorporated CDMA searcher with time offset compensation
US20050176665A1 (en) * 2001-05-18 2005-08-11 Sirna Therapeutics, Inc. RNA interference mediated inhibition of hairless (HR) gene expression using short interfering nucleic acid (siNA)
US7103115B2 (en) 2001-05-21 2006-09-05 At&T Corp. Optimum training sequences for wireless systems
US7012966B2 (en) * 2001-05-21 2006-03-14 At&T Corp. Channel estimation for wireless systems with multiple transmit antennas
KR100424538B1 (ko) * 2001-05-29 2004-03-27 엘지전자 주식회사 이동통신시스템에서의 스크램블링 코드 생성 장치 및 방법
US6970499B2 (en) * 2001-05-30 2005-11-29 Koninklijke Philips Electronics N.V. Varying early-late spacing in a delay locked loop
US6580920B2 (en) * 2001-06-05 2003-06-17 Nokia Mobile Phones Ltd. System for adjusting gain of a mobile station during an idle period of the serving base station
GB2376381B (en) * 2001-06-07 2004-06-16 Cambridge Broadband Ltd Wireless transmission system and method
ES2614202T3 (es) 2001-06-13 2017-05-30 Intel Corporation Método y aparato para la transmisión de una señal de latido de corazón a un nivel inferior que la solicitud de latido de corazón
US7139334B2 (en) * 2001-06-21 2006-11-21 Bartlett Alan M Cooperative code-enhanced multi-user communications system
US7688919B1 (en) * 2001-06-26 2010-03-30 Altera Corporation Parallel samples, parallel coefficients, time division multiplexing correlator architecture
JP3573745B2 (ja) * 2001-07-13 2004-10-06 川崎マイクロエレクトロニクス株式会社 Cdma受信装置およびcdma受信方法
US20030086486A1 (en) * 2001-07-31 2003-05-08 Graziano Michael J. Method and system for determining maximum power backoff using frequency domain geometric signal to noise ratio
US20030099286A1 (en) * 2001-07-31 2003-05-29 Graziano Michael J. Method and system for shaping transmitted power spectral density according to line conditions
US20030027579A1 (en) * 2001-08-03 2003-02-06 Uwe Sydon System for and method of providing an air interface with variable data rate by switching the bit time
US7333530B1 (en) 2001-08-06 2008-02-19 Analog Devices, Inc. Despread signal recovery in digital signal processors
CA2398057C (en) * 2001-08-15 2011-07-19 Raytheon Company Combining signal images in accordance with signal-to-noise ratios
US6975690B1 (en) 2001-08-15 2005-12-13 The United States Of America As Represented By The Secretary Of The Air Force Signal folding coherent acquisition for weak global positioning system (GPS) C/A coded signal
US7996827B2 (en) 2001-08-16 2011-08-09 Martin Vorbach Method for the translation of programs for reconfigurable architectures
US7434191B2 (en) 2001-09-03 2008-10-07 Pact Xpp Technologies Ag Router
US6816470B2 (en) * 2001-09-18 2004-11-09 Interdigital Technology Corporation Method and apparatus for interference signal code power and noise variance estimation
US8686475B2 (en) * 2001-09-19 2014-04-01 Pact Xpp Technologies Ag Reconfigurable elements
CA2405322A1 (en) * 2001-09-28 2003-03-28 Telecommunications Research Laboratories Channel code decoding for the cdma forward link
FR2830384B1 (fr) * 2001-10-01 2003-12-19 Cit Alcatel Procede de dispositif de codage et de decodage convolutifs
US6456648B1 (en) * 2001-10-01 2002-09-24 Interdigital Technology Corporation Code tracking loop with automatic power normalization
US6680925B2 (en) * 2001-10-16 2004-01-20 Qualcomm Incorporated Method and system for selecting a best serving sector in a CDMA data communication system
US20040004945A1 (en) * 2001-10-22 2004-01-08 Peter Monsen Multiple access network and method for digital radio systems
US7218684B2 (en) 2001-11-02 2007-05-15 Interdigital Technology Corporation Method and system for code reuse and capacity enhancement using null steering
US7058139B2 (en) * 2001-11-16 2006-06-06 Koninklijke Philips Electronics N.V. Transmitter with transmitter chain phase adjustment on the basis of pre-stored phase information
US7317756B2 (en) 2001-12-06 2008-01-08 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US8045935B2 (en) 2001-12-06 2011-10-25 Pulse-Link, Inc. High data rate transmitter and receiver
US7349478B2 (en) * 2001-12-06 2008-03-25 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US6944147B2 (en) * 2001-12-10 2005-09-13 Nortel Networks Limited System and method for maximizing capacity in a telecommunications system
US7586837B2 (en) * 2001-12-14 2009-09-08 Qualcomm Incorporated Acquisition of a gated pilot signal
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US7298776B2 (en) * 2001-12-14 2007-11-20 Qualcomm Incorporated Acquisition of a gated pilot signal with coherent and noncoherent integration
JP3820981B2 (ja) * 2001-12-20 2006-09-13 日本電気株式会社 無線通信システム及び発信側携帯端末における相手先携帯端末の時刻識別方法
IL147359A (en) * 2001-12-27 2007-03-08 Eci Telecom Ltd High speed PRBS creation technique
KR100446745B1 (ko) * 2002-01-09 2004-09-01 엘지전자 주식회사 이동통신 단말기의 파워 제어방법
WO2003061151A1 (en) * 2002-01-10 2003-07-24 Analog Devices, Inc. Path search for cdma implementation
US6833810B2 (en) 2002-01-18 2004-12-21 Raytheon Company Combining signals exhibiting multiple types of diversity
US8281108B2 (en) 2002-01-19 2012-10-02 Martin Vorbach Reconfigurable general purpose processor having time restricted configurations
US7039134B1 (en) 2002-01-22 2006-05-02 Comsys Communication & Signal Processing Ltd. Reduced complexity correlator for use in a code division multiple access spread spectrum receiver
US8149904B2 (en) * 2002-01-24 2012-04-03 Broadcom Corporation Asymmetric digital subscriber line modem apparatus and methods therefor
EP1468529A2 (en) * 2002-01-25 2004-10-20 Nokia Corporation Method and system for adding ip routes to a routing mobile terminal with 3g messages
US7010017B2 (en) * 2002-01-30 2006-03-07 Qualcomm Inc. Receiver noise estimation
US7006557B2 (en) * 2002-01-31 2006-02-28 Qualcomm Incorporated Time tracking loop for diversity pilots
DE10204851B4 (de) * 2002-02-06 2005-12-15 Infineon Technologies Ag Datenübertragungssystem mit einstellbarer Sendeleistung
JP2003234696A (ja) * 2002-02-06 2003-08-22 Mitsubishi Electric Corp 送信電力補正方法、移動通信システムおよび移動局
KR20030067341A (ko) * 2002-02-08 2003-08-14 주식회사 팬택앤큐리텔 Is-2000 시스템에서의 기지국내 동기식 복조장치
US6862271B2 (en) * 2002-02-26 2005-03-01 Qualcomm Incorporated Multiple-input, multiple-output (MIMO) systems with multiple transmission modes
TW567682B (en) * 2002-03-01 2003-12-21 Benq Corp System and method to adjust searcher threshold parameter of RAKE receiver
US6985751B2 (en) * 2002-03-07 2006-01-10 Siemens Communications, Inc. Combined open and closed loop power control with differential measurement
US6748247B1 (en) * 2002-03-12 2004-06-08 Winphoria Networks, Inc. System and method of handling dormancy in wireless networks
US8914590B2 (en) 2002-08-07 2014-12-16 Pact Xpp Technologies Ag Data processing method and device
WO2004088502A2 (de) * 2003-04-04 2004-10-14 Pact Xpp Technologies Ag Verfahren und vorrichtung für die datenverarbeitung
US20110161977A1 (en) * 2002-03-21 2011-06-30 Martin Vorbach Method and device for data processing
US6820090B2 (en) * 2002-03-22 2004-11-16 Lucent Technologies Inc. Method for generating quantiles from data streams
US7406068B2 (en) 2002-03-26 2008-07-29 Interdigital Technology Corporation TDD-RLAN wireless telecommunication system with RAN IP gateway and methods
US8432893B2 (en) 2002-03-26 2013-04-30 Interdigital Technology Corporation RLAN wireless telecommunication system with RAN IP gateway and methods
US7394795B2 (en) 2002-03-26 2008-07-01 Interdigital Technology Corporation RLAN wireless telecommunication system with RAN IP gateway and methods
US20040192315A1 (en) * 2002-03-26 2004-09-30 Li Jimmy Kwok-On Method for dynamically assigning spreading codes
US7505431B2 (en) 2002-03-26 2009-03-17 Interdigital Technology Corporation RLAN wireless telecommunication system with RAN IP gateway and methods
US7489672B2 (en) 2002-03-26 2009-02-10 Interdigital Technology Corp. RLAN wireless telecommunication system with RAN IP gateway and methods
US7372818B2 (en) * 2002-03-28 2008-05-13 General Motors Corporation Mobile vehicle quiescent cycle control method
US7453863B2 (en) * 2002-04-04 2008-11-18 Lg Electronics Inc. Cell searching apparatus and method in asynchronous mobile communication system
US7372892B2 (en) * 2002-04-29 2008-05-13 Interdigital Technology Corporation Simple and robust digital code tracking loop for wireless communication systems
US6950684B2 (en) 2002-05-01 2005-09-27 Interdigital Technology Corporation Method and system for optimizing power resources in wireless devices
EP1502372A4 (en) 2002-05-06 2010-09-08 Interdigital Tech Corp SYNCHRONIZATION TO EXTEND THE LIFE OF ACCUMULATORS
US6973579B2 (en) 2002-05-07 2005-12-06 Interdigital Technology Corporation Generation of user equipment identification specific scrambling code for the high speed shared control channel
EP1525669A1 (en) * 2002-05-07 2005-04-27 IPR Licensing, Inc. Antenna adaptation in a time division duplexing system
GB0211005D0 (en) * 2002-05-15 2002-06-26 Ipwireless Inc System,transmitter,receiver and method for communication power control
GB2389018B (en) * 2002-05-20 2004-04-28 Korea Advanced Inst Sci & Tech Fast code acquisition method based on signed-rank statistic
US6757321B2 (en) * 2002-05-22 2004-06-29 Interdigital Technology Corporation Segment-wise channel equalization based data estimation
US8699505B2 (en) * 2002-05-31 2014-04-15 Qualcomm Incorporated Dynamic channelization code allocation
US7200342B2 (en) * 2002-06-06 2007-04-03 The Aerospace Corporation Direct-sequence spread-spectrum optical-frequency-shift-keying code-division-multiple-access communication system
SG109499A1 (en) * 2002-06-17 2005-03-30 Oki Techno Ct Singapore Pte Frequency estimation in a burst radio receiver
ES2604453T3 (es) 2002-07-03 2017-03-07 The Directv Group, Inc. Método y aparato para modulación en capas
US7050775B2 (en) * 2002-07-11 2006-05-23 Itt Manufacturing Enterprises, Inc. Method and apparatus for securely enabling a radio communication unit from standby mode
US6968170B2 (en) * 2002-07-16 2005-11-22 Narad Networks, Inc. Adaptive correction of a received signal frequency response tilt
JP3796204B2 (ja) * 2002-07-31 2006-07-12 松下電器産業株式会社 マルチキャリア送信信号のピーク抑圧方法およびピーク抑圧機能をもつマルチキャリア送信信号生成回路
US7657861B2 (en) * 2002-08-07 2010-02-02 Pact Xpp Technologies Ag Method and device for processing data
GB2392054B (en) * 2002-08-14 2005-11-02 Fujitsu Ltd Capacity analysis for spread-spectrum radio communication systems
WO2004017192A2 (en) * 2002-08-19 2004-02-26 Analog Devices Inc. Fast linear feedback shift register engine
US6670914B1 (en) * 2002-08-30 2003-12-30 Rf Micro Devices, Inc. RF system for rejection of L-band jamming in a GPS receiver
US7454209B2 (en) * 2002-09-05 2008-11-18 Qualcomm Incorporated Adapting operation of a communication filter based on mobile unit velocity
JP4388895B2 (ja) 2002-09-06 2009-12-24 ペーアーツェーテー イクスペーペー テクノロジーズ アクチエンゲゼルシャフト リコンフィギュアラブルなシーケンサ構造
US8504054B2 (en) 2002-09-10 2013-08-06 Qualcomm Incorporated System and method for multilevel scheduling
US7630321B2 (en) 2002-09-10 2009-12-08 Qualcomm Incorporated System and method for rate assignment
US7555262B2 (en) * 2002-09-24 2009-06-30 Honeywell International Inc. Radio frequency interference monitor
ITTO20020836A1 (it) * 2002-09-24 2004-03-25 Stimicroelectronics Srl Metodo e dispositivo a basso consumo per la generazione
US8917234B2 (en) * 2002-10-15 2014-12-23 Immersion Corporation Products and processes for providing force sensations in a user interface
US8125453B2 (en) * 2002-10-20 2012-02-28 Immersion Corporation System and method for providing rotational haptic feedback
US7133440B1 (en) 2002-10-25 2006-11-07 L-3 Communications Corporation Acquisition of a synchronous CDMA TDD QPSK waveform using variable thresholds for PN and burst synchronization
CA2503530C (en) 2002-10-25 2009-12-22 The Directv Group, Inc. Lower complexity layered modulation signal processor
US20040137909A1 (en) * 2002-11-25 2004-07-15 Marios Gerogiokas Capacity adaptive technique for distributed wireless base stations
US7339994B2 (en) 2002-11-25 2008-03-04 Texas Instruments Incorporated Method and apparatus for fast convergent power control in a spread spectrum communication system
US20040203462A1 (en) * 2002-11-25 2004-10-14 Wei Lin Method and apparatus for setting the threshold of a power control target in a spread spectrum communication system
US7330504B2 (en) * 2002-11-25 2008-02-12 Texas Instruments Incorporated Method and apparatus for low power-rise power control using sliding-window-weighted QoS measurements
US8059088B2 (en) 2002-12-08 2011-11-15 Immersion Corporation Methods and systems for providing haptic messaging to handheld communication devices
US8830161B2 (en) 2002-12-08 2014-09-09 Immersion Corporation Methods and systems for providing a virtual touch haptic effect to handheld communication devices
AU2003293449A1 (en) 2002-12-08 2004-06-30 Immersion Corporation Methods and systems for providing a virtual touch haptic effect to handheld communication devices
US7043214B2 (en) * 2002-12-11 2006-05-09 Microsoft Corporation Tower discovery and failover
US8165148B2 (en) 2003-01-13 2012-04-24 Qualcomm Incorporated System and method for rate assignment
US7199783B2 (en) * 2003-02-07 2007-04-03 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Wake-up detection method and apparatus embodying the same
US7277509B2 (en) * 2003-02-10 2007-10-02 Nokia Corporation Low complexity frequency-offset correction method
EP1447915A1 (de) * 2003-02-14 2004-08-18 Siemens Aktiengesellschaft Anordnung zur Funksignalentspreizung bei einem Funkkommunikationssystem mit Code-Vielfachzugriffsverfahren
US7403583B1 (en) * 2003-02-19 2008-07-22 L-3 Communications Corporation System and method for predictive synchronization for locating interleaving frames and demodulation training sequences
US7346103B2 (en) 2003-03-03 2008-03-18 Interdigital Technology Corporation Multi user detection using equalization and successive interference cancellation
TW200522751A (en) * 2003-03-05 2005-07-01 Interdigital Tech Corp Received communication signal processing methods and components for wireless communication equipment
KR20040092830A (ko) * 2003-04-29 2004-11-04 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 슬립 구간 설정 방법
DE10322943B4 (de) * 2003-05-21 2005-10-06 Infineon Technologies Ag Hardware-Vorrichtung zur Aufbereitung von Pilotsymbolen für eine Kanalschätzung mittels adaptiver Tiefpassfilterung
US7194279B2 (en) * 2003-05-23 2007-03-20 Nokia Corporation Adjustment of a phase difference between two signals
KR100957395B1 (ko) * 2003-05-23 2010-05-11 삼성전자주식회사 레벨 교차율을 이용한 속도추정 장치 및 방법
US7366137B2 (en) * 2003-05-31 2008-04-29 Qualcomm Incorporated Signal-to-noise estimation in wireless communication devices with receive diversity
US7760765B2 (en) * 2003-05-31 2010-07-20 Qualcomm, Incorporated System and method for the reacquisition of a gated pilot
US7429914B2 (en) * 2003-06-04 2008-09-30 Andrew Corporation System and method for CDMA geolocation
US7933250B2 (en) * 2003-06-23 2011-04-26 Qualcomm Incorporated Code channel management in a wireless communications system
US20050002442A1 (en) * 2003-07-02 2005-01-06 Litwin Louis Robert Method and apparatus for detection of Pilot signal with frequency offset using multi-stage correlator
EP1652065B1 (en) * 2003-07-23 2013-09-04 ST-Ericsson SA Device and method for composing codes
GB0318735D0 (en) * 2003-08-11 2003-09-10 Koninkl Philips Electronics Nv Communication system
WO2005015775A1 (en) * 2003-08-11 2005-02-17 Nortel Networks Limited System and method for embedding ofdm in cdma systems
ATE424662T1 (de) * 2003-08-11 2009-03-15 Koninkl Philips Electronics Nv Leistungssteuerung in mobilen endgeräten zum ermöglichen der übertragung von ack/nack signalen
US7428262B2 (en) * 2003-08-13 2008-09-23 Motorola, Inc. Channel estimation in a rake receiver of a CDMA communication system
DE10340397A1 (de) * 2003-09-02 2005-04-07 Siemens Ag §erfahren zum Übertragen von Signalen in einem Funkkommunikationssystem sowie entsprechende Sendestation und Empfangsstation
US7092426B2 (en) * 2003-09-24 2006-08-15 S5 Wireless, Inc. Matched filter for scalable spread spectrum communications systems
US7006840B2 (en) * 2003-09-30 2006-02-28 Interdigital Technology Corporation Efficient frame tracking in mobile receivers
KR101035219B1 (ko) * 2003-10-08 2011-05-18 디지털 파운튼, 인크. Fec-기반 신뢰도 제어 프로토콜
US8164573B2 (en) 2003-11-26 2012-04-24 Immersion Corporation Systems and methods for adaptive interpretation of input from a touch-sensitive input device
US8072942B2 (en) * 2003-11-26 2011-12-06 Qualcomm Incorporated Code channel management in a wireless communications system
US7903617B2 (en) 2003-12-03 2011-03-08 Ruey-Wen Liu Method and system for multiuser wireless communications using anti-interference to increase transmission data rate
US20050152316A1 (en) * 2004-01-08 2005-07-14 Chien-Hsing Liao CDMA transmitting and receiving apparatus with multiple applied interface functions and a method thereof
GB2410162B (en) * 2004-01-16 2005-12-21 Compxs Uk Ltd Spread spectrum acquisition
US7460990B2 (en) * 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
US7190980B2 (en) * 2004-01-30 2007-03-13 Hewlett-Packard Development Company, L.P. Method and system for power control in wireless portable devices using wireless channel characteristics
US7180537B2 (en) * 2004-02-18 2007-02-20 Tektronix, Inc. Relative channel delay measurement
US7263540B1 (en) * 2004-03-03 2007-08-28 The United States Of America As Represented By The Director National Security Agency Method of generating multiple random numbers
KR100735337B1 (ko) * 2004-03-05 2007-07-04 삼성전자주식회사 광대역 무선 접속 통신 시스템의 슬립 모드에서 주기적레인징 시스템 및 방법
US6809675B1 (en) * 2004-03-05 2004-10-26 International Business Machines Corporation Redundant analog to digital state machine employed to multiple states on a single line
KR100922950B1 (ko) * 2004-03-05 2009-10-22 삼성전자주식회사 직교주파수분할다중접속 방식을 기반으로 하는 이동통신시스템에서 데이터 프레임 처리 결과 송/수신장치 및 방법
US7015835B2 (en) * 2004-03-17 2006-03-21 Lawrence Technologies, Llc Imposing and recovering correlithm objects in conjunction with table lookup
US7505597B2 (en) * 2004-03-17 2009-03-17 Lockheed Martin Corporation Multi-level security CDMA communications arrangement
US7529291B2 (en) * 2004-04-13 2009-05-05 Raytheon Company Methods and structures for rapid code acquisition in spread spectrum communications
WO2005114892A1 (en) * 2004-05-12 2005-12-01 Thomson Licensing Carrier phase ambiguity correction
US7706489B2 (en) 2004-05-12 2010-04-27 Thomson Licensing Symbol timing ambiguity correction
KR101086175B1 (ko) * 2004-05-12 2011-11-25 톰슨 라이센싱 Atsc-dtv 수신기에서의 듀얼-모드 등화기
CA2565808A1 (en) * 2004-05-12 2005-12-01 Thomson Licensing Dual-mode sync generator in an atsc-dtv receiver
US7706483B2 (en) 2004-05-12 2010-04-27 Thomson Licensing Carrier phase ambiguity correction
KR100608109B1 (ko) * 2004-06-28 2006-08-02 삼성전자주식회사 이동통신 시스템에서 도플러 주파수 및 단말기의 이동속도 계산 장치 및 방법
PL1779055T3 (pl) * 2004-07-15 2017-08-31 Cubic Corporation Ulepszenie punktu celowniczego w układach symulatorów szkoleniowych
CN101065914A (zh) * 2004-07-26 2007-10-31 美商内数位科技公司 升级现存数据主机能力的高速下链封包存取共处理器
KR100823129B1 (ko) * 2004-08-18 2008-04-21 삼성전자주식회사 이동통신 시스템의 트랙킹 장치 및 방법
US7106801B1 (en) * 2005-03-01 2006-09-12 Venkata Guruprasad Distance division multiplexing
WO2006023012A2 (en) * 2004-08-24 2006-03-02 Venkata Guruprasad Distance division multiplexing
WO2006039117A2 (en) * 2004-09-21 2006-04-13 Skyfence Inc. Positioning system that uses signals from a point source
US7716056B2 (en) * 2004-09-27 2010-05-11 Robert Bosch Corporation Method and system for interactive conversational dialogue for cognitively overloaded device users
US20060093051A1 (en) * 2004-11-03 2006-05-04 Silicon Integrated Systems Corp. Method and device for resisting DC interference of an OFDM system
JP4519606B2 (ja) * 2004-11-05 2010-08-04 株式会社エヌ・ティ・ティ・ドコモ 基地局および移動通信システム並びに送信電力制御方法
US7116705B2 (en) * 2004-11-08 2006-10-03 Interdigital Technology Corporation Method and apparatus for reducing the processing rate of a chip-level equalization receiver
KR100725772B1 (ko) 2004-11-16 2007-06-08 삼성전자주식회사 데이터 전송률 결정 방법 및 장치
US8126085B2 (en) * 2004-11-22 2012-02-28 Intel Corporation Method and apparatus to estimate channel tap
KR101050625B1 (ko) * 2004-11-24 2011-07-19 삼성전자주식회사 무선 송수신기의 cm 노이즈 제거방법 및 장치
US7596355B2 (en) * 2004-11-29 2009-09-29 Intel Corporation System and method capable of closed loop MIMO calibration
US7656853B2 (en) * 2004-12-27 2010-02-02 Microsoft Corporation Reducing power consumption of a wireless device
KR100696802B1 (ko) * 2005-02-16 2007-03-19 엘지전자 주식회사 디지털 멀티미디어 브로드캐스팅 기반의 항법 유도 장치 및이를 이용한 교통 정보 제공방법
US20100157833A1 (en) * 2005-03-10 2010-06-24 Qualcomm Incorporated Methods and systems for improved timing acquisition for varying channel conditions
US8675631B2 (en) * 2005-03-10 2014-03-18 Qualcomm Incorporated Method and system for achieving faster device operation by logical separation of control information
JP4559985B2 (ja) * 2005-03-15 2010-10-13 株式会社東芝 乱数発生回路
WO2006101369A1 (en) * 2005-03-24 2006-09-28 Lg Electronics Inc. Method of connecting to network in broadband wireless access system
US20060217983A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for injecting comfort noise in a communications system
US20060217970A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for noise reduction
US20060217988A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for adaptive level control
US20060215683A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for voice quality enhancement
US20060217972A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for modifying an encoded signal
JP2006287756A (ja) 2005-04-01 2006-10-19 Ntt Docomo Inc 送信装置、送信方法、受信装置及び受信方法
US7672286B2 (en) * 2005-04-18 2010-03-02 Via Telecom Co., Ltd. Reverse-link structure for a multi-carrier communication system
US7564828B2 (en) * 2005-04-18 2009-07-21 Via Telecom Co., Ltd. Power-efficient signaling for asymmetric multi-carrier communications
US7474611B2 (en) * 2005-04-21 2009-01-06 Telefonaktiebolaget L M Ericsson (Publ) Reduced complexity channel estimation in OFDM systems
US7526705B2 (en) 2005-05-03 2009-04-28 Agere Systems Inc. Acknowledgement message modification in communication networks
US8145262B2 (en) * 2005-05-17 2012-03-27 Pine Valley Investments, Inc. Multimode land mobile radio
US8279868B2 (en) * 2005-05-17 2012-10-02 Pine Valley Investments, Inc. System providing land mobile radio content using a cellular data network
JP2006333239A (ja) * 2005-05-27 2006-12-07 Nec Electronics Corp インタフェース装置と通信制御方法
US7634290B2 (en) * 2005-05-31 2009-12-15 Vixs Systems, Inc. Adjusting transmit power of a wireless communication device
EP1908237A4 (en) * 2005-07-13 2013-01-30 Venkata Guruprasad SPECTRA BASED ON DISTANCE WITH UNIFORM SAMPLING SPECTROMETRY
US7339976B2 (en) * 2005-07-18 2008-03-04 Motorola, Inc. Method and apparatus for reducing power consumption within a wireless receiver
KR100736612B1 (ko) * 2005-07-28 2007-07-09 엘지전자 주식회사 멀티유저 제어 가능한 디지털 방송 시스템
US20070030923A1 (en) * 2005-08-02 2007-02-08 Xiaoming Yu High accuracy non data-aided frequency estimator for M-ary phase shift keying modulation
CN100377509C (zh) * 2005-08-16 2008-03-26 华为技术有限公司 确定载波反向信道初始发射功率的方法
US7680251B2 (en) * 2005-09-13 2010-03-16 Motorola, Inc. Prevention of an alarm activation and supporting methods and apparatus
US8179318B1 (en) 2005-09-28 2012-05-15 Trueposition, Inc. Precise position determination using VHF omni-directional radio range signals
US8804751B1 (en) * 2005-10-04 2014-08-12 Force10 Networks, Inc. FIFO buffer with multiple stream packet segmentation
US7623607B2 (en) * 2005-10-31 2009-11-24 Qualcomm Incorporated Methods and apparatus for determining timing in a wireless communication system
US7498873B2 (en) 2005-11-02 2009-03-03 Rosom Corporation Wide-lane pseudorange measurements using FM signals
US20070121555A1 (en) * 2005-11-08 2007-05-31 David Burgess Positioning using is-95 cdma signals
US20070127458A1 (en) * 2005-12-06 2007-06-07 Micrel, Inc. Data communication method for detecting slipped bit errors in received data packets
US7990853B2 (en) * 2005-12-13 2011-08-02 Fujitsu Limited Link aggregation with internal load balancing
US8948329B2 (en) * 2005-12-15 2015-02-03 Qualcomm Incorporated Apparatus and methods for timing recovery in a wireless transceiver
US7893873B2 (en) * 2005-12-20 2011-02-22 Qualcomm Incorporated Methods and systems for providing enhanced position location in wireless communications
EP1989864A1 (en) * 2005-12-30 2008-11-12 Nokia Corporation Method for addressing and signalling using sequences with predetermined correlation properties
US8149168B1 (en) 2006-01-17 2012-04-03 Trueposition, Inc. Position determination using wireless local area network signals and television signals
US8250503B2 (en) * 2006-01-18 2012-08-21 Martin Vorbach Hardware definition method including determining whether to implement a function as hardware or software
US7856250B2 (en) * 2006-03-28 2010-12-21 Samsung Electronics Co., Ltd. Apparatus and method for managing SOHO BTS interference using antenna beam coverage based on pilot strength measurement messages
MY187399A (en) * 2006-04-28 2021-09-22 Qualcomm Inc Method and apparatus for enhanced paging
US7873331B2 (en) * 2006-06-04 2011-01-18 Samsung Electro-Mechanics Company, Ltd. Systems, methods, and apparatuses for multi-path orthogonal recursive predistortion
US7860466B2 (en) * 2006-06-04 2010-12-28 Samsung Electro-Mechanics Company, Ltd. Systems, methods, and apparatuses for linear polar transmitters
US7518445B2 (en) * 2006-06-04 2009-04-14 Samsung Electro-Mechanics Company, Ltd. Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters
US7941091B1 (en) * 2006-06-19 2011-05-10 Rf Magic, Inc. Signal distribution system employing a multi-stage signal combiner network
US7466266B2 (en) * 2006-06-22 2008-12-16 Rosum Corporation Psuedo television transmitters for position location
US7737893B1 (en) 2006-06-28 2010-06-15 Rosum Corporation Positioning in a single-frequency network
US8031816B2 (en) * 2006-07-17 2011-10-04 Mediatek Inc. Method and apparatus for determining boundaries of information elements
US8194682B2 (en) * 2006-08-07 2012-06-05 Pine Valley Investments, Inc. Multiple protocol land mobile radio system
US8725066B2 (en) * 2006-08-23 2014-05-13 Samsung Electronics Co., Ltd. Apparatus and method for allocating resource to mobile station connected to relay station in broadband wireless communication system
KR100819104B1 (ko) * 2006-09-07 2008-04-03 삼성전자주식회사 병렬 비트 테스트 회로 및 그에 의한 병렬 비트 테스트방법
US20080096483A1 (en) * 2006-10-20 2008-04-24 Wilson Electronics Power saving circuits for time division multiple access amplifiers
TWI361583B (en) * 2006-11-06 2012-04-01 Qualcomm Inc Codeword level scrambling for mimo transmission
US7698088B2 (en) * 2006-11-15 2010-04-13 Silicon Image, Inc. Interface test circuitry and methods
US8682341B1 (en) 2006-11-22 2014-03-25 Trueposition, Inc. Blind identification of single-frequency-network transmitters
US7769380B2 (en) * 2006-12-20 2010-08-03 King Fahd University Of Petroleum And Minerals Method for reducing the rate of registration in CDMA-based mobile networks
US20080168374A1 (en) * 2007-01-06 2008-07-10 International Business Machines Corporation Method to manage external indicators for different sas port types
US8208527B2 (en) * 2007-01-30 2012-06-26 California Institute Of Technology Scalable reconfigurable concurrent filter for wide-bandwidth communication
US8077677B2 (en) * 2007-01-31 2011-12-13 Interdigital Technology Corporation Method and apparatus for paging group handling
TWI695822B (zh) * 2007-04-27 2020-06-11 美商應用材料股份有限公司 減小曝露於含鹵素電漿下之表面腐蝕速率的方法與設備
CN101730858B (zh) * 2007-05-25 2011-08-31 刘瑞文 通过抗干扰技术增加多用户无线通信系统传输速率的方法和系统
US7974651B2 (en) * 2007-06-13 2011-07-05 Motorola Solutions, Inc. Automatically switching a TDMA radio affiliated with a FDMA site to a TDMA site
US8046214B2 (en) * 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US8270457B2 (en) 2007-06-27 2012-09-18 Qualcomm Atheros, Inc. High sensitivity GPS receiver
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US20090070847A1 (en) * 2007-07-06 2009-03-12 Rosum Corporation Positioning with Time Sliced Single Frequency Networks
US7868819B2 (en) * 2007-09-07 2011-01-11 The Board Of Trustees Of The Leland Stanford Junior University Arrangements for satellite-based navigation and methods therefor
KR101478392B1 (ko) * 2007-10-04 2014-12-31 애플 인크. 셀 세그먼트 내에서의 공간 빔 형성
US8249883B2 (en) * 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
EP2220554A1 (de) * 2007-11-17 2010-08-25 Krass, Maren Rekonfiguri erbare fliesskomma- und bit- ebenen datenverarbeitungseinheit
EP2217999A2 (de) * 2007-11-28 2010-08-18 Krass, Maren Compiler für rekonfigurierbare architekturen mit besonderem zwischenformat
WO2009071329A1 (en) * 2007-12-07 2009-06-11 Pact Xpp Technologies Ag Using function calls as compiler directives
WO2009076577A1 (en) * 2007-12-12 2009-06-18 Rosum Corporation Transmitter identification for wireless signals having a digital audio broadcast (dab) physical layer
KR101572880B1 (ko) * 2007-12-12 2015-11-30 엘지전자 주식회사 다중화율을 고려한 상향링크 전력제어 방법
US8135431B2 (en) 2007-12-18 2012-03-13 Gilat Satellite Networks, Ltd. Multi-dimensional adaptive transmission technique
US7792156B1 (en) 2008-01-10 2010-09-07 Rosum Corporation ATSC transmitter identifier signaling
US8155592B2 (en) 2008-04-11 2012-04-10 Robert Bosch Gmbh Method for transmitting low-frequency data in a wireless intercom system
US7817559B2 (en) * 2008-04-11 2010-10-19 Nokia Siemens Networks Oy Network node power conservation apparatus, system, and method
KR101490796B1 (ko) * 2008-06-25 2015-02-06 삼성전자주식회사 주파수 채널 정보의 전송 방법과 수신 방법 및 그 장치
US8150478B2 (en) * 2008-07-16 2012-04-03 Marvell World Trade Ltd. Uplink power control in aggregated spectrum systems
US8537802B2 (en) 2008-07-23 2013-09-17 Marvell World Trade Ltd. Channel measurements in aggregated-spectrum wireless systems
US8073463B2 (en) 2008-10-06 2011-12-06 Andrew, Llc System and method of UMTS UE location using uplink dedicated physical control channel and downlink synchronization channel
US8125389B1 (en) 2008-10-20 2012-02-28 Trueposition, Inc. Doppler-aided positioning, navigation, and timing using broadcast television signals
RU2398356C2 (ru) * 2008-10-31 2010-08-27 Cамсунг Электроникс Ко., Лтд Способ установления беспроводной линии связи и система для установления беспроводной связи
US8675649B2 (en) * 2008-11-18 2014-03-18 Yamaha Corporation Audio network system and method of detecting topology in audio signal transmitting system
KR101479591B1 (ko) * 2008-11-21 2015-01-08 삼성전자주식회사 이동통신 시스템의 셀 탐색 방법 및 장치
US8751990B2 (en) * 2008-12-19 2014-06-10 L3 Communications Integrated Systems, L.P. System for determining median values of video data
CN101771477B (zh) * 2008-12-29 2013-06-05 深圳富泰宏精密工业有限公司 手机射频发射功率校正系统及方法
KR100991957B1 (ko) * 2009-01-20 2010-11-04 주식회사 팬택 광대역 무선통신시스템에서의 스크램블링 코드 생성 장치 및 그 방법
KR101555210B1 (ko) 2009-01-30 2015-09-23 삼성전자주식회사 휴대용 단말기에서 내장 대용량 메모리를 이용한 컨텐츠 다운로드 방법 및 장치
CN101483909B (zh) * 2009-02-06 2011-03-02 中兴通讯股份有限公司 基于多载波的反向功率控制方法
US8253627B1 (en) 2009-02-13 2012-08-28 David Burgess Position determination with NRSC-5 digital radio signals
US8090319B2 (en) * 2009-02-27 2012-01-03 Research In Motion Limited Method and system for automatic frequency control optimization
US8406168B2 (en) * 2009-03-13 2013-03-26 Harris Corporation Asymmetric broadband data radio network
US8250423B2 (en) * 2009-03-24 2012-08-21 Clear Wireless Llc Method and system for improving performance of broadcast/multicast transmissions
US8737911B2 (en) * 2009-05-11 2014-05-27 Qualcomm Incorporated Dual-stage echo cancellation in a wireless repeater using an inserted pilot
BR112012001175B1 (pt) * 2009-07-20 2020-12-15 Ericsson Telecomunicações S.A Método para uso por um nó de uma rede, aparelho para uso como um nó de uma rede, ou em um nó de uma rede, e, mídia de armazenamento
US8520552B2 (en) * 2010-01-05 2013-08-27 Qualcomm Incorporated Method for determining mutual and transitive correlation over a wireless channel to form links and deliver targeted content messages
JP5716373B2 (ja) * 2010-03-23 2015-05-13 セイコーエプソン株式会社 相関演算方法、衛星信号捕捉方法、相関演算回路及び電子機器
US10375252B2 (en) 2010-06-01 2019-08-06 Ternarylogic Llc Method and apparatus for wirelessly activating a remote mechanism
US8817928B2 (en) 2010-06-01 2014-08-26 Ternarylogic Llc Method and apparatus for rapid synchronization of shift register related symbol sequences
WO2012014099A1 (en) 2010-07-27 2012-02-02 Marvell World Trade Ltd. Shared soft metric buffer for carrier aggregation receivers
US9344306B2 (en) * 2010-08-09 2016-05-17 Mediatek Inc. Method for dynamically adjusting signal processing parameters for processing wanted signal and communications apparatus utilizing the same
US8488719B2 (en) 2010-08-12 2013-07-16 Harris Corporation Wireless communications device with multiple demodulators and related methods
WO2012060826A1 (en) * 2010-11-03 2012-05-10 Empire Technology Development, Llc Collaborative data sharing for cdma interference subtraction
US8908598B1 (en) * 2011-08-17 2014-12-09 Sprint Spectrum L.P. Switch-level page settings based on a combination of device performance and coverage area performance
WO2013028868A1 (en) * 2011-08-23 2013-02-28 Northrop Grumman Guidance And Electronics Company, Inc. Packet-based input/output interface for a correlation engine
JP5634354B2 (ja) * 2011-08-26 2014-12-03 三菱電機株式会社 通信システムおよび受信機
US8983526B2 (en) * 2011-11-08 2015-03-17 Telefonaktiebolaget L M Ericsson (Publ) Optimized streetlight operation (OSLO) using a cellular network overlay
CN102547813B (zh) 2011-12-16 2014-04-02 华为技术有限公司 码道检测方法和相关装置及通信系统
US9072058B2 (en) * 2012-02-06 2015-06-30 Alcatel Lucent Method and apparatus for power optimization in wireless systems with large antenna arrays
US9244156B1 (en) * 2012-02-08 2016-01-26 Bae Systems Information And Electronic Systems Integration Inc. Orthogonal polarization signal agnostic matched filter
US8976844B2 (en) * 2012-02-14 2015-03-10 The Boeing Company Receiver for detection and time recovery of non-coherent signals and methods of operating same
US9253515B2 (en) * 2012-03-11 2016-02-02 Broadcom Corporation Channel bonding synchronization
CN103379534B (zh) * 2012-04-13 2017-07-28 联芯科技有限公司 用于终端相对功率校准时的功率检测方法及系统
JP5982991B2 (ja) 2012-04-25 2016-08-31 セイコーエプソン株式会社 受信部駆動制御方法及び受信装置
US8861653B2 (en) 2012-05-04 2014-10-14 Qualcomm Incorporated Devices and methods for obtaining and using a priori information in decoding convolutional coded data
US8787506B2 (en) 2012-05-04 2014-07-22 Qualcomm Incorporated Decoders and methods for decoding convolutional coded data
WO2013173537A1 (en) 2012-05-16 2013-11-21 Nokia Corporation Alternating adjustment of power levels for the data channel and control channel
US9703852B2 (en) 2012-05-29 2017-07-11 Sas Institute Inc. Systems and methods for quantile determination in a distributed data system using sampling
US9507833B2 (en) 2012-05-29 2016-11-29 Sas Institute Inc. Systems and methods for quantile determination in a distributed data system
US9268796B2 (en) * 2012-05-29 2016-02-23 Sas Institute Inc. Systems and methods for quantile estimation in a distributed data system
US8964617B2 (en) 2012-05-30 2015-02-24 Qualcomm Incorporated Methods and devices for regulating power in wireless receiver circuits
US8868093B1 (en) * 2012-06-05 2014-10-21 Sprint Communications Company L.P. Carrier frequency assignment based on transmit power differentials
CN103517390B (zh) * 2012-06-19 2017-03-22 京信通信技术(广州)有限公司 一种功率控制方法及装置
CN102752013B (zh) 2012-06-21 2014-09-03 华为技术有限公司 激活码道检测方法及装置
TWI474728B (zh) * 2012-09-21 2015-02-21 建構於適應性網路模糊推論系統之三層串接式認知引擎之方法及裝置
RU2517243C1 (ru) * 2012-10-29 2014-05-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Российский государственный торгово-экономический университет" Устройство для моделирования процесса принятия решения в условиях неопределенности
WO2014106820A1 (en) 2013-01-04 2014-07-10 Marvell World Trade Ltd. Enhanced buffering of soft decoding metrics
US9166750B1 (en) * 2013-03-08 2015-10-20 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Soft decision analyzer and method
CN103227819B (zh) * 2013-03-28 2016-08-03 北京创毅视讯科技有限公司 机器类通信中业务数据的传输方法及系统、基站和ue
GB2513891A (en) * 2013-05-09 2014-11-12 Frontier Silicon Ltd A digital radio receiver system and method
JP6102533B2 (ja) * 2013-06-05 2017-03-29 富士通株式会社 受信回路
CN103634089A (zh) * 2013-07-05 2014-03-12 山东科技大学 熵分复用方法
US9129651B2 (en) * 2013-08-30 2015-09-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Array-reader based magnetic recording systems with quadrature amplitude modulation
US9135385B2 (en) * 2013-09-12 2015-09-15 Nxp B.V. Data error susceptible bit identification
KR101467314B1 (ko) * 2013-10-29 2014-12-01 성균관대학교산학협력단 부분상관함수에 기초한 boc 상관함수 생성 방법, boc 신호 추적 장치 및 이를 이용한 대역 확산 신호 수신 시스템
JP2015090277A (ja) 2013-11-05 2015-05-11 セイコーエプソン株式会社 衛星信号受信機
JP6318565B2 (ja) 2013-11-13 2018-05-09 セイコーエプソン株式会社 半導体装置および電子機器
JP2015108565A (ja) 2013-12-05 2015-06-11 セイコーエプソン株式会社 衛星信号受信用集積回路
GB201400729D0 (en) * 2014-01-16 2014-03-05 Qinetiq Ltd A processor for a radio receiver
GB2524464A (en) * 2014-01-31 2015-09-30 Neul Ltd Frequency error estimation
US9385778B2 (en) 2014-01-31 2016-07-05 Qualcomm Incorporated Low-power circuit and implementation for despreading on a configurable processor datapath
US9571199B1 (en) * 2014-05-12 2017-02-14 Google Inc. In-band control of network elements
KR101596756B1 (ko) * 2014-11-03 2016-03-07 현대자동차주식회사 리던던트 그랜드마스터를 이용한 차량 내 네트워크 시간 동기화 제공 방법 및 장치
US9872299B1 (en) 2014-12-09 2018-01-16 Marvell International Ltd. Optimized transmit-power allocation in multi-carrier transmission
US9596053B1 (en) * 2015-01-14 2017-03-14 Sprint Spectrum L.P. Method and system of serving a user equipment device using different modulation and coding schemes
CN105991720B (zh) * 2015-02-13 2019-06-18 阿里巴巴集团控股有限公司 配置变更方法、设备及系统
KR102301840B1 (ko) * 2015-02-25 2021-09-14 삼성전자 주식회사 이동 통신 시스템에서 단말의 전송 전력을 제어하는 방법 및 장치
GB2536226B (en) * 2015-03-09 2019-11-27 Crfs Ltd Frequency discriminator
CN108471615B (zh) * 2015-03-27 2022-04-29 胡汉强 一种共享子频带的方法及基站
CN104883229B (zh) * 2015-03-27 2017-03-01 北京理工大学 一种基于fdma体制的码分多波束信号分离方法
DE102015106201A1 (de) * 2015-04-22 2016-10-27 Intel IP Corporation Schaltung, integrierte schaltung, empfänger, sendeempfänger und verfahren zum empfangen eines signals
CN107710633B (zh) 2015-06-01 2020-12-22 转移附加有限责任合伙公司 用于具有可调节数据速率的频谱高效和能量高效的超宽带脉冲无线电的系统和方法
US11064378B2 (en) 2015-07-16 2021-07-13 Zte Wistron Telecom Ab Measurement-based random access configuration
RU2598784C1 (ru) * 2015-07-17 2016-09-27 Закрытое акционерное общество Научно-технический центр "Модуль" Способ шифрования сообщений, передаваемых с помощью шумоподобных сигналов
US10762020B2 (en) * 2015-10-09 2020-09-01 Sony Corporation Bus system and communication device
US10601655B2 (en) * 2015-12-04 2020-03-24 Skyworks Solutions, Inc. Dynamic multiplexer configuration process
WO2017134533A1 (en) * 2016-02-02 2017-08-10 Marvell World Trade Ltd. Method and apparatus for network synchronization
WO2017141759A1 (ja) * 2016-02-18 2017-08-24 パナソニックIpマネジメント株式会社 端末機および端末機の制御方法、並びにこの端末機を用いた無線通信システム
US9871595B2 (en) * 2016-04-27 2018-01-16 Industrial Technology Research Institute Decoding device and method for absolute positioning code
TWI623200B (zh) * 2016-04-27 2018-05-01 財團法人工業技術研究院 定位絕對碼的解碼裝置及解碼方法
DE102016108206B4 (de) * 2016-05-03 2020-09-10 Bury Sp.Z.O.O Schaltungsanordnung und Verfahren zur Dämpfungskompensation in einer Antennensignalverbindung
US10230409B2 (en) * 2016-05-24 2019-03-12 Hughes Network Systems, Llc Apparatus and method for reduced computation amplifier gain control
FR3053861B1 (fr) * 2016-07-07 2019-08-09 Safran Electrical & Power Procede et systeme de communication pour des modules interconnectes par courants porteurs en ligne
US10057048B2 (en) * 2016-07-19 2018-08-21 Analog Devices, Inc. Data handoff between randomized clock domain to fixed clock domain
CN107707496B (zh) * 2016-08-09 2022-04-29 中兴通讯股份有限公司 调制符号的处理方法及装置
KR102565297B1 (ko) * 2016-10-17 2023-08-10 엘지디스플레이 주식회사 터치 표시 장치, 터치 시스템, 터치 마스터 및 통신 방법
WO2018166695A1 (en) 2017-03-16 2018-09-20 British Telecommunications Public Limited Company Branched communications network
ES2821573T3 (es) * 2017-03-16 2021-04-26 British Telecomm Difusión en una red de comunicaciones
CN109089255B (zh) * 2017-06-14 2022-01-25 中国移动通信有限公司研究院 用户位置通知控制方法、装置、系统、设备及存储介质
US10181872B1 (en) 2017-07-21 2019-01-15 Synaptics Incorporated Impulse response filtering of code division multiplexed signals in a capacitive sensing device
US10705105B2 (en) 2017-07-21 2020-07-07 Applied Concepts, Inc. Absolute speed detector
US10127192B1 (en) 2017-09-26 2018-11-13 Sas Institute Inc. Analytic system for fast quantile computation
EP3486678B1 (en) * 2017-11-17 2023-08-30 Rohde & Schwarz GmbH & Co. KG Multi-signal instantaneous frequency measurement system
CA3026944A1 (en) 2017-12-08 2019-06-08 Evertz Microsystems Ltd. Universal radio frequency router with an automatic gain control
US10879952B2 (en) * 2018-04-18 2020-12-29 Huawei Technologies Co., Ltd. Apparatus and receiver for performing synchronization in analog spread spectrum systems
US10469126B1 (en) * 2018-09-24 2019-11-05 Huawei Technologies Co., Ltd. Code synchronization for analog spread spectrum systems
CN109243471B (zh) * 2018-09-26 2022-09-23 杭州联汇科技股份有限公司 一种快速编码广播用数字音频的方法
CN109450594B (zh) * 2018-10-11 2021-01-19 浙江工业大学 云接入网上行链路的无速率码度数分布优化方法
US11452058B2 (en) * 2018-11-09 2022-09-20 Samsung Electronics Co., Ltd Apparatus and method for cell detection by combining secondary spreading sequences
US10491264B1 (en) 2018-11-12 2019-11-26 Analog Devices Global Unlimited Company Combined demodulator and despreader
US11075721B2 (en) 2019-04-29 2021-07-27 Itron, Inc. Channel plan management in a radio network
US11102050B2 (en) 2019-04-29 2021-08-24 Itron, Inc. Broadband digitizer used for channel assessment
US10624041B1 (en) * 2019-04-29 2020-04-14 Itron, Inc. Packet error rate estimator for a radio
CN110300449B (zh) * 2019-07-26 2022-01-11 电子科技大学 一种基于伪多径的安全通信方法及装置
CN110518957B (zh) * 2019-07-30 2020-11-06 北京大学 一种开放无线信道中旁路网络导引方法
CN110908928B (zh) * 2019-10-15 2022-03-11 深圳市金泰克半导体有限公司 搜寻最后写入页的方法及装置
RU2718753C1 (ru) * 2019-10-28 2020-04-14 Федеральное государственное казенное военное образовательное учреждение высшего образования "Краснодарское высшее военное авиационное училище летчиков имени Героя Советского Союза А.К. Серова" Устройство третьей решающей схемы ускоренного поиска и эффективного приема широкополосных сигналов
CN111245527B (zh) * 2020-03-27 2022-04-08 四川虹美智能科技有限公司 性能检测系统及其检测方法
US11259250B2 (en) * 2020-04-10 2022-02-22 Totum Labs, Inc. System and method for selecting zero doppler transmission
CN113645169B (zh) * 2020-05-11 2022-07-05 大唐移动通信设备有限公司 正交频分复用多载波系统载波相位跟踪方法及装置
WO2021230430A1 (en) * 2020-05-13 2021-11-18 Samsung Electronics Co., Ltd. Efficient physical layer for intrabody communication networks
CN114286351A (zh) * 2020-09-27 2022-04-05 杭州承联通信技术有限公司 一种tdma无线自组网分叉业务中继方法
CN112155523B (zh) * 2020-09-27 2022-09-16 太原理工大学 一种基于模态能量主成分比量化的脉搏信号特征提取与分类方法
CN112597630B (zh) * 2020-12-03 2022-03-18 上海卫星工程研究所 一种基于离散积分的非线性遥参转换方法及系统
CN112234955B (zh) * 2020-12-10 2021-03-26 深圳市千分一智能技术有限公司 Dsss信号识别方法、装置、设备及计算机可读存储介质
CN113359517B (zh) * 2021-04-28 2023-03-28 青岛海尔科技有限公司 用于设备操作断电恢复的方法、装置、存储介质及电子设备
TWI764749B (zh) * 2021-06-07 2022-05-11 嘉雨思科技股份有限公司 訊號傳輸電路元件、多工器電路元件及解多工器電路元件
CN113645593B (zh) * 2021-08-18 2023-05-16 中国联合网络通信集团有限公司 M2m设备节点的广播通信方法、系统、基站及存储介质
CN113595599B (zh) * 2021-09-30 2021-12-10 华东交通大学 面向5g的群簇协作通信异构系统和干扰抑制的方法
CN114125069B (zh) * 2021-10-27 2023-01-24 青海师范大学 一种水声网络多对一并行传输mac协议的实现方法
CN114124616B (zh) * 2022-01-25 2022-05-27 浙江中控研究院有限公司 基于epa总线结构的时钟同步优化方法
CN114448837A (zh) * 2022-01-30 2022-05-06 北京航天飞行控制中心 天地回路时延的测量方法及测量装置
WO2023167754A1 (en) * 2022-03-01 2023-09-07 Sri International Multi-level aiding signal to support rapid communication
CN114572420B (zh) * 2022-03-04 2023-05-16 中航(成都)无人机系统股份有限公司 一种进气道隐身测试的低散射载体
CN115499036B (zh) * 2022-11-14 2023-02-24 北京航空航天大学合肥创新研究院(北京航空航天大学合肥研究生院) 宽带扩频信号并行捕获方法及存储介质

Family Cites Families (762)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US556392A (en) * 1896-03-17 Check-punch
US722051A (en) * 1902-07-31 1903-03-03 Adolf Sherman Adjustable miter-box.
US1570220A (en) * 1925-04-30 1926-01-19 Royal Typewriter Co Inc Ribbon-feeding mechanism for typewriting machines
US3700820A (en) 1966-04-15 1972-10-24 Ibm Adaptive digital communication system
US3656555A (en) * 1970-03-27 1972-04-18 Elvy E Johns Sr Lawn edger
US3761610A (en) 1971-02-16 1973-09-25 Graphics Sciences Inc High speed fascimile systems
DE2124320C1 (de) * 1971-05-17 1978-04-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrische Schaltung zur Erzeugung einer Vielzahl verschiedener Codes
US4092601A (en) * 1976-06-01 1978-05-30 The Charles Stark Draper Laboratory, Inc. Code tracking signal processing system
US4069392A (en) 1976-11-01 1978-01-17 Incorporated Bell Telephone Laboratories Dual speed full duplex data transmission
US4156277A (en) 1977-09-26 1979-05-22 Burroughs Corporation Access request mechanism for a serial data input/output system
US4228538A (en) 1977-12-15 1980-10-14 Harris Corporation Real-time adaptive power control in satellite communications systems
JPS6230444Y2 (zh) 1978-07-31 1987-08-05
US4292623A (en) 1979-06-29 1981-09-29 International Business Machines Corporation Port logic for a communication bus system
US4384307A (en) 1979-08-28 1983-05-17 Inteq, Inc. Facsimile communications interface adapter
JPS5723356A (en) 1980-07-02 1982-02-06 Hitachi Ltd Sound signal converter
US4385206A (en) 1980-12-16 1983-05-24 Stromberg-Carlson Corporation Programmable port sense and control signal preprocessor for a central office switching system
JPS57104339A (en) 1980-12-19 1982-06-29 Ricoh Co Ltd Optical communication network
US4425665A (en) 1981-09-24 1984-01-10 Advanced Micro Devices, Inc. FSK Voiceband modem using digital filters
US4480307A (en) 1982-01-04 1984-10-30 Intel Corporation Interface for use between a memory and components of a module switching apparatus
US4458314A (en) 1982-01-07 1984-07-03 Bell Telephone Laboratories, Incorporated Circuitry for allocating access to a demand shared bus
JPS58139543A (ja) 1982-02-15 1983-08-18 Ricoh Co Ltd 通信回路網
US4417042A (en) 1982-02-17 1983-11-22 General Electric Company Scavengers for one-component alkoxy-functional RTV compositions and processes
US4608700A (en) 1982-07-29 1986-08-26 Massachusetts Institute Of Technology Serial multi-drop data link
US4625308A (en) 1982-11-30 1986-11-25 American Satellite Company All digital IDMA dynamic channel allocated satellite communications system and method
DE3311030A1 (de) * 1983-03-25 1984-09-27 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zum uebertragen von datensignalen zwischen teilnehmerstellen eines datennetzes
US4667192A (en) 1983-05-24 1987-05-19 The Johns Hopkins University Method and apparatus for bus arbitration using a pseudo-random sequence
JPS6010876A (ja) 1983-06-30 1985-01-21 Ricoh Co Ltd フアクシミリ通信制御方式
JPS6019590U (ja) 1983-07-15 1985-02-09 株式会社 多田野鉄工所 搭載型クレ−ンの取付構造
JPH0722324B2 (ja) 1983-08-30 1995-03-08 富士通株式会社 データ伝送方式
US4570220A (en) 1983-11-25 1986-02-11 Intel Corporation High speed parallel bus and data transfer method
FR2557746B1 (fr) 1983-12-30 1986-04-11 Thomson Csf Filtre numerique a bande passante et phase variables
US4646232A (en) 1984-01-03 1987-02-24 Texas Instruments Incorporated Microprocessor with integrated CPU, RAM, timer, bus arbiter data for communication system
JPH0758690B2 (ja) 1984-02-24 1995-06-21 三井東圧化学株式会社 薄膜製造装置及び方法
US4599732A (en) 1984-04-17 1986-07-08 Harris Corporation Technique for acquiring timing and frequency synchronization for modem utilizing known (non-data) symbols as part of their normal transmitted data format
US4914574A (en) 1984-08-16 1990-04-03 Mitsubishi Denki Kabushiki Kaisha Data transmission apparatus having cascaded data processing modules for daisy chain data transfer
JPS6170869A (ja) 1984-09-14 1986-04-11 Fuji Photo Film Co Ltd 固体撮像装置および固体光センサ装置
US4768145A (en) 1984-11-28 1988-08-30 Hewlett-Packard Company Bus system
JPS61129963U (zh) 1985-02-01 1986-08-14
US4675863A (en) 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
JPS61170059U (zh) 1985-04-10 1986-10-22
US4630283A (en) 1985-07-17 1986-12-16 Rca Corporation Fast acquisition burst mode spread spectrum communications system with pilot carrier
US4794590A (en) 1985-07-31 1988-12-27 Ricoh Company, Limited Communication network control system
US4785463A (en) * 1985-09-03 1988-11-15 Motorola, Inc. Digital global positioning system receiver
US4675865A (en) 1985-10-04 1987-06-23 Northern Telecom Limited Bus interface
GB2187367B (en) 1986-01-09 1990-03-28 Ricoh Kk Control system for local area network
JPH0779477B2 (ja) 1986-01-13 1995-08-23 松下電器産業株式会社 輝度信号搬送色信号分離装置
JPH06104694B2 (ja) 1986-01-23 1994-12-21 東邦チタニウム株式会社 オレフイン類重合用触媒
JPS62171342A (ja) * 1986-01-24 1987-07-28 Nec Corp デ−タ通信方式
FR2595889B1 (fr) 1986-03-14 1988-05-06 Havel Christophe Dispositif de controle de puissance d'emission dans une station emettrice-receptrice de radiocommunication
US4672156A (en) 1986-04-04 1987-06-09 Westinghouse Electric Corp. Vacuum interrupter with bellows shield
JPH0242500Y2 (zh) 1986-04-28 1990-11-13
JPS62256516A (ja) 1986-04-30 1987-11-09 Matsushita Graphic Commun Syst Inc ベ−スバンド伝送用フイルタ装置
JPS6323425A (ja) * 1986-07-16 1988-01-30 Ricoh Co Ltd 音声再生方式
US4862402A (en) 1986-07-24 1989-08-29 North American Philips Corporation Fast multiplierless architecture for general purpose VLSI FIR digital filters with minimized hardware
JPH0758665B2 (ja) 1986-09-18 1995-06-21 ティーディーケイ株式会社 複合型回路部品及びその製造方法
US4839887A (en) 1986-09-18 1989-06-13 Ricoh Company, Ltd. Node apparatus for communication network having multi-conjunction architecture
US4811262A (en) 1986-09-19 1989-03-07 Rockwell International Corporation Distributed arithmetic realization of second-order normal-form digital filter
US4744079A (en) 1986-10-01 1988-05-10 Gte Communication Systems Corporation Data packet multiplexer/demultiplexer
JPS63226151A (ja) 1986-10-15 1988-09-20 Fujitsu Ltd 多重パケット通信システム
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
JPH0243642Y2 (zh) 1986-10-31 1990-11-20
JPH0685731B2 (ja) 1986-12-27 1994-11-02 タイガー魔法瓶株式会社 炊飯方法
JPH0677963B2 (ja) 1987-05-30 1994-10-05 東京瓦斯株式会社 管の内張り方法及び拡開具
JPH0522285Y2 (zh) 1987-06-05 1993-06-08
JPH0639053Y2 (ja) 1987-06-09 1994-10-12 日産自動車株式会社 内燃機関の吸気装置
JPH07107007B2 (ja) 1987-06-24 1995-11-15 東都化成株式会社 テトラブロムビスフエノ−ルaの精製方法
JP2582585B2 (ja) 1987-09-02 1997-02-19 株式会社リコー 不定形通信網のノード装置
JPS6447141U (zh) 1987-09-18 1989-03-23
JPH0787011B2 (ja) 1987-10-21 1995-09-20 ティアツク株式会社 2次歪除去回路
US4841527A (en) 1987-11-16 1989-06-20 General Electric Company Stabilization of random access packet CDMA networks
US4901265A (en) * 1987-12-14 1990-02-13 Qualcomm, Inc. Pseudorandom dither for frequency synthesis noise
DE3743731C2 (de) * 1987-12-23 1994-11-24 Ant Nachrichtentech Verfahren und Schaltungsanordnung zur Regelung der Phasenlage zwischen einem erzeugten Code und einem in einem empfangenen spektral gespreizten Signal enthaltenen empfangenen Code
DE3743732C2 (de) * 1987-12-23 1994-12-01 Ant Nachrichtentech Verfahren zur Synchronisierung eines Codewortes mit einem empfangenen spektral gespreizten Signal
JPH07107033B2 (ja) 1987-12-26 1995-11-15 キッセイ薬品工業株式会社 光学活性な3−アミノ−4−シクロヘキシル−2−ヒドロキシ酪酸塩酸塩およびその製造方法
JPH0738496Y2 (ja) 1988-01-11 1995-09-06 東陶機器株式会社 壁パネルの接続構造
US4979170A (en) 1988-01-19 1990-12-18 Qualcomm, Inc. Alternating sequential half duplex communication system
US4926130A (en) 1988-01-19 1990-05-15 Qualcomm, Inc. Synchronous up-conversion direct digital synthesizer
US4905177A (en) * 1988-01-19 1990-02-27 Qualcomm, Inc. High resolution phase to sine amplitude conversion
US4928274A (en) 1988-01-19 1990-05-22 Qualcomm, Inc. Multiplexed address control in a TDM communication system
US4876554A (en) 1988-01-19 1989-10-24 Qualcomm, Inc. Pillbox antenna and antenna assembly
JP2584647B2 (ja) 1988-01-28 1997-02-26 株式会社リコー 通信網のノード装置
JPH01124730U (zh) 1988-02-19 1989-08-24
US5351134A (en) 1988-04-07 1994-09-27 Canon Kabushiki Kaisha Image communication system, and image communication apparatus and modem used in the system
JPH066374Y2 (ja) 1988-05-07 1994-02-16 シャープ株式会社 複写機
CA1320767C (en) 1988-05-11 1993-07-27 Robert C. Frame Atomic sequence for phase transitions
US5105423A (en) 1988-05-17 1992-04-14 Ricoh Company, Ltd. Digital transmission device having an error correction mode and method for shifting down a data transmission rate
JPH0723022Y2 (ja) 1988-06-10 1995-05-24 株式会社三ツ葉電機製作所 モータにおける刷子ホルダステー
JPH0242500A (ja) * 1988-08-01 1990-02-13 Sharp Corp ディジタル録音再生装置
JPH0795151B2 (ja) 1988-08-23 1995-10-11 株式会社東芝 内視鏡装置
US4912722A (en) * 1988-09-20 1990-03-27 At&T Bell Laboratories Self-synchronous spread spectrum transmitter/receiver
JPH0284832A (ja) 1988-09-20 1990-03-26 Nippon Telegr & Teleph Corp <Ntt> Tdma無線通信方式
US5253347A (en) 1988-11-18 1993-10-12 Bull Hn Information Systems Italia S.P.A. Centralized arbitration system using the status of target resources to selectively mask requests from master units
CA2003977C (en) 1988-12-05 1995-08-01 Shinji Yamaguchi Ethylene-vinyl alcohol copolymer composite fiber and production thereof
IT1227520B (it) 1988-12-06 1991-04-12 Sgs Thomson Microelectronics Filtro digitale programmabile
JPH0284832U (zh) 1988-12-15 1990-07-02
US4930140A (en) 1989-01-13 1990-05-29 Agilis Corporation Code division multiplex system using selectable length spreading code sequences
US4940771A (en) * 1989-01-30 1990-07-10 General Electric Company Reactive polycarbonate end capped with hydroxy phenyl oxazoline
JPH02215238A (ja) 1989-02-15 1990-08-28 Matsushita Electric Ind Co Ltd 移動無線装置
JP2783578B2 (ja) 1989-02-21 1998-08-06 キヤノン株式会社 スペクトラム拡散通信装置
JPH0340535Y2 (zh) 1989-03-14 1991-08-26
JPH0730483Y2 (ja) 1989-03-15 1995-07-12 王子製袋株式会社 スパイラル式自動ストレッチ包装機
US4969159A (en) 1989-03-22 1990-11-06 Harris Corporation Spread spectrum communication system employing composite spreading codes with matched filter demodulator
JPH02256331A (ja) 1989-03-29 1990-10-17 Sharp Corp 無線通信システム
US5022046A (en) 1989-04-14 1991-06-04 The United States Of America As Represented By The Secretary Of The Air Force Narrowband/wideband packet data communication system
US5142278A (en) 1989-04-18 1992-08-25 Qualcomm Incorporated Current carrier tractor-trailer data link
JP2893709B2 (ja) 1989-04-21 1999-05-24 ソニー株式会社 Vtr一体型ビデオカメラ装置
JPH02287874A (ja) 1989-04-28 1990-11-27 Toshiba Corp 積和演算装置
JPH077936B2 (ja) 1989-05-02 1995-01-30 日本電信電話株式会社 nビット多重分離変換回路
US5339174A (en) 1989-05-02 1994-08-16 Harris Scott C Facsimile machine time shifting and converting apparatus
US5027306A (en) 1989-05-12 1991-06-25 Dattorro Jon C Decimation filter as for a sigma-delta analog-to-digital converter
JPH02301746A (ja) 1989-05-16 1990-12-13 Konica Corp 直接ポジ用ハロゲン化銀写真感光材料
JPH0332122A (ja) 1989-06-28 1991-02-12 Nec Corp 移動無線通信端末の送信出力制御方式
JPH06104829B2 (ja) 1989-07-06 1994-12-21 東京瓦斯株式会社 コークス炉炉蓋溝部の掃除効果分析方法
FR2650715B1 (fr) * 1989-08-03 1991-11-08 Europ Agence Spatiale Systeme de communications a acces multiple par repartition a codes avec porteuse activee par la voix de l'usager et synchronisation par code
JPH0669898B2 (ja) 1989-08-08 1994-09-07 矢崎総業株式会社 光ファイバ用多孔質母材合成用トーチ
US5159551A (en) 1989-08-09 1992-10-27 Picker International, Inc. Prism architecture for ct scanner image reconstruction
US5028887A (en) 1989-08-31 1991-07-02 Qualcomm, Inc. Direct digital synthesizer driven phase lock loop frequency synthesizer with hard limiter
US4965533A (en) 1989-08-31 1990-10-23 Qualcomm, Inc. Direct digital synthesizer driven phase lock loop frequency synthesizer
US5199061A (en) 1989-09-06 1993-03-30 Electronics And Telecommunications Research Institute Communication method and equipment for freeze-frame video phone
US5163131A (en) 1989-09-08 1992-11-10 Auspex Systems, Inc. Parallel i/o network file server architecture
US5113525A (en) 1989-11-06 1992-05-12 Mitsubishi Denki Kabushiki Kaisha Linear-modulation type radio transmitter
US5056109A (en) 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
US5101501A (en) * 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5257283A (en) * 1989-11-07 1993-10-26 Qualcomm Incorporated Spread spectrum transmitter power control method and system
US5485486A (en) * 1989-11-07 1996-01-16 Qualcomm Incorporated Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system
US5267262A (en) * 1989-11-07 1993-11-30 Qualcomm Incorporated Transmitter power control system
US5265119A (en) 1989-11-07 1993-11-23 Qualcomm Incorporated Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system
US5109390A (en) 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5022049A (en) * 1989-11-21 1991-06-04 Unisys Corp. Multiple access code acquisition system
US5126748A (en) 1989-12-05 1992-06-30 Qualcomm Incorporated Dual satellite navigation system and method
US5017926A (en) 1989-12-05 1991-05-21 Qualcomm, Inc. Dual satellite navigation system
JP2894752B2 (ja) * 1989-12-06 1999-05-24 マツダ株式会社 車両のスリップ制御装置
US5084900A (en) * 1989-12-21 1992-01-28 Gte Spacenet Corporation Spread spectrum system with random code retransmission
US5050004A (en) 1989-12-26 1991-09-17 At&T Bell Laboratories Facsimile machine transmission rate fall-back arrangement
JPH03198423A (ja) 1989-12-27 1991-08-29 Fujitsu Ltd Pll周波数シンセサイザ
US5267238A (en) 1989-12-29 1993-11-30 Ricoh Company, Ltd. Network interface units and communication system using network interface unit
JPH03231523A (ja) 1990-02-07 1991-10-15 Nippon Telegr & Teleph Corp <Ntt> 移動通信制御方式
US5107345A (en) 1990-02-27 1992-04-21 Qualcomm Incorporated Adaptive block size image compression method and system
US5021891A (en) 1990-02-27 1991-06-04 Qualcomm, Inc. Adaptive block size image compression method and system
US5193094A (en) * 1990-03-07 1993-03-09 Qualcomm Incorporated Method and apparatus for generating super-orthogonal convolutional codes and the decoding thereof
US5117385A (en) 1990-03-16 1992-05-26 International Business Machines Corporation Table lookup multiplier with digital filter
US5073900A (en) 1990-03-19 1991-12-17 Mallinckrodt Albert J Integrated cellular communications system
US5878329A (en) 1990-03-19 1999-03-02 Celsat America, Inc. Power control of an integrated cellular communications system
US5446756A (en) * 1990-03-19 1995-08-29 Celsat America, Inc. Integrated cellular communications system
US5166952A (en) * 1990-05-24 1992-11-24 Cylink Corporation Method and apparatus for the reception and demodulation of spread spectrum radio signals
US5253268A (en) * 1990-05-24 1993-10-12 Cylink Corporation Method and apparatus for the correlation of sample bits of spread spectrum radio signals
US5140613A (en) 1990-05-25 1992-08-18 Hewlett-Packard Company Baseband modulation system with improved ROM-based digital filter
US5291515A (en) * 1990-06-14 1994-03-01 Clarion Co., Ltd. Spread spectrum communication device
US5166929A (en) * 1990-06-18 1992-11-24 Northern Telecom Limited Multiple access protocol
SE467332B (sv) * 1990-06-21 1992-06-29 Ericsson Telefon Ab L M Foerfarande foer effektreglering i ett digitalt mobiltelefonisystem
US5568483A (en) 1990-06-25 1996-10-22 Qualcomm Incorporated Method and apparatus for the formatting of data for transmission
US5659569A (en) 1990-06-25 1997-08-19 Qualcomm Incorporated Data burst randomizer
US6693951B1 (en) 1990-06-25 2004-02-17 Qualcomm Incorporated System and method for generating signal waveforms in a CDMA cellular telephone system
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5511073A (en) 1990-06-25 1996-04-23 Qualcomm Incorporated Method and apparatus for the formatting of data for transmission
EP0464839B1 (en) * 1990-07-05 2000-09-27 Fujitsu Limited Digitally multiplexed transmission system
US5831011A (en) 1990-07-27 1998-11-03 Mycogen Corporation Bacillus thuringiensis genes encoding nematode-active toxins
US5115429A (en) 1990-08-02 1992-05-19 Codex Corporation Dynamic encoding rate control minimizes traffic congestion in a packet network
GB9017910D0 (en) * 1990-08-15 1990-09-26 Vaseal Electronics Limited Improvements in and relating to proximity switches
JPH0832513B2 (ja) 1990-11-27 1996-03-29 株式会社カンセイ 車両用乗員保護装置
US5099493A (en) 1990-08-27 1992-03-24 Zeger-Abrams Incorporated Multiple signal receiver for direct sequence, code division multiple access, spread spectrum signals
JP2775003B2 (ja) * 1990-09-04 1998-07-09 松下電器産業株式会社 移動通信システム
JPH04117849A (ja) 1990-09-07 1992-04-17 Fujitsu Ltd カード式電話機
US5128623A (en) 1990-09-10 1992-07-07 Qualcomm Incorporated Direct digital synthesizer/direct analog synthesizer hybrid frequency synthesizer
ES2083445T3 (es) 1990-09-18 1996-04-16 Alcatel Nv Circuito diezmador de varios canales.
US5099204A (en) * 1990-10-15 1992-03-24 Qualcomm Incorporated Linear gain control amplifier
US5535238A (en) * 1990-11-16 1996-07-09 Interdigital Technology Corporation Spread spectrum adaptive power control communications system and method
US5081643A (en) * 1990-11-16 1992-01-14 Scs Mobilecom, Inc. Spread spectrum multipath receiver apparatus and method
US5093840A (en) * 1990-11-16 1992-03-03 Scs Mobilecom, Inc. Adaptive power control for a spread spectrum transmitter
US5299226A (en) * 1990-11-16 1994-03-29 Interdigital Technology Corporation Adaptive power control for a spread spectrum communications system and method
US5390207A (en) * 1990-11-28 1995-02-14 Novatel Communications Ltd. Pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators
US5101416A (en) * 1990-11-28 1992-03-31 Novatel Comunications Ltd. Multi-channel digital receiver for global positioning system
US5107225A (en) * 1990-11-30 1992-04-21 Qualcomm Incorporated High dynamic range closed loop automatic gain control circuit
US5283536A (en) * 1990-11-30 1994-02-01 Qualcomm Incorporated High dynamic range closed loop automatic gain control circuit
US5224120A (en) * 1990-12-05 1993-06-29 Interdigital Technology Corporation Dynamic capacity allocation CDMA spread spectrum communications
US5263045A (en) 1990-12-05 1993-11-16 Interdigital Technology Corporation Spread spectrum conference call system and method
US5228056A (en) * 1990-12-14 1993-07-13 Interdigital Technology Corporation Synchronous spread-spectrum communications system and method
US5185762A (en) 1991-05-15 1993-02-09 Scs Mobilecom, Inc. Spread spectrum microwave overlay with notch filter
US5179572A (en) * 1991-06-17 1993-01-12 Scs Mobilecom, Inc. Spread spectrum conference calling system and method
US5365544A (en) 1990-12-05 1994-11-15 Interdigital Technology Corporation CDMA communications and geolocation system and method
US5506864A (en) * 1990-12-05 1996-04-09 Interdigital Technology Corporation CDMA communications and geolocation system and method
US5367533A (en) * 1990-12-05 1994-11-22 Interdigital Technology Corporation Dynamic capacity allocation CDMA spread spectrum communications
US5161168A (en) 1991-05-15 1992-11-03 Scs Mobilecom, Inc. Spread spectrum CDMA communications system microwave overlay
US5351269A (en) 1990-12-05 1994-09-27 Scs Mobilecom, Inc. Overlaying spread spectrum CDMA personal communications system
IL100213A (en) * 1990-12-07 1995-03-30 Qualcomm Inc Mikrata Kedma phone system and its antenna distribution system
US5513176A (en) 1990-12-07 1996-04-30 Qualcomm Incorporated Dual distributed antenna system
US5274665A (en) 1990-12-14 1993-12-28 Interdigital Technology Corporation Polyopoly overlapping spread spectrum communication system and method
US5218619A (en) * 1990-12-17 1993-06-08 Ericsson Ge Mobile Communications Holding, Inc. CDMA subtractive demodulation
US5151919A (en) 1990-12-17 1992-09-29 Ericsson-Ge Mobile Communications Holding Inc. Cdma subtractive demodulation
JPH04222111A (ja) 1990-12-21 1992-08-12 Mitsubishi Electric Corp ディジタルフィルタ
US5276907A (en) * 1991-01-07 1994-01-04 Motorola Inc. Method and apparatus for dynamic distribution of a communication channel load in a cellular radio communication system
US5274474A (en) 1991-01-23 1993-12-28 Randolph-Rand Corporation Integrated telefacsimile and character communication system with standard and high speed modes
US5794144A (en) * 1994-03-11 1998-08-11 Bellsouth Corporation Methods and apparatus for communicating data via a cellular mobile radiotelephone system
US5182938A (en) * 1991-02-22 1993-02-02 Nordson Corporation Method and apparatus for detecting bubbles in pressurized liquid dispensing systems
JP2794964B2 (ja) 1991-02-27 1998-09-10 日本電気株式会社 制御信号発生回路
US5235614A (en) 1991-03-13 1993-08-10 Motorola, Inc. Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system
US5204876A (en) * 1991-03-13 1993-04-20 Motorola, Inc. Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system
US5241685A (en) 1991-03-15 1993-08-31 Telefonaktiebolaget L M Ericsson Load sharing control for a mobile cellular radio system
JPH04287593A (ja) 1991-03-18 1992-10-13 Nec Eng Ltd ディジタル映像信号フィルタ回路
JP2538132B2 (ja) 1991-03-20 1996-09-25 松下電送株式会社 通信制御方法及びisdn用端末アダプタ装置
CA2063901C (en) * 1991-03-25 2002-08-13 Arunas G. Slekys Cellular data overlay system
JP2535135Y2 (ja) 1991-03-28 1997-05-07 マツダ株式会社 圧粉成形装置
US5504936A (en) 1991-04-02 1996-04-02 Airtouch Communications Of California Microcells for digital cellular telephone systems
US5233630A (en) 1991-05-03 1993-08-03 Qualcomm Incorporated Method and apparatus for resolving phase ambiguities in trellis coded modulated data
US5940771A (en) 1991-05-13 1999-08-17 Norand Corporation Network supporting roaming, sleeping terminals
US5166951A (en) * 1991-05-15 1992-11-24 Scs Mobilecom, Inc. High capacity spread spectrum channel
US5228053A (en) 1991-05-15 1993-07-13 Interdigital Technology Corporation Spread spectrum cellular overlay CDMA communications system
TW197548B (zh) 1991-05-17 1993-01-01 Ericsson Telefon Ab L M
US5678198A (en) 1991-05-22 1997-10-14 Southwestern Bell Technology Resources, Inc. System for controlling signal level at both ends of a transmission link, based upon a detected value
US5107487A (en) 1991-05-28 1992-04-21 Motorola, Inc. Power control of a direct sequence CDMA radio
MX9202593A (es) 1991-05-29 1993-01-01 Communications Satellite Corp Red de acceso multiple de division de codigo completamente enlazada para terminales personales de comunicacion.
JP3160350B2 (ja) 1991-05-30 2001-04-25 株式会社リコー 通信網制御方法
EP0587783B1 (en) 1991-06-04 1997-10-15 Qualcomm, Inc. Adaptive block size image compression system
FR2677473B1 (fr) 1991-06-05 1995-04-07 Telemecanique Procede et bus d'arbitrage pour transmission de donnees serie.
DE69206685T2 (de) * 1991-06-06 1996-07-04 Commissariat Energie Atomique Poliermaschine mit einem gespannten Feinschleifband und einem verbesserten Werkstückträgerkopf
EP1126437B1 (en) 1991-06-11 2004-08-04 QUALCOMM Incorporated Apparatus and method for masking errors in frames of data
US5710868A (en) * 1991-06-12 1998-01-20 Microchip Technology Incorporated Apparatus and method for generating a fuzzy number for use in fuzzy logic systems
WO1993000750A1 (en) 1991-06-25 1993-01-07 Motorola, Inc. Method and apparatus for establishing a communication link
US5268900A (en) 1991-07-05 1993-12-07 Codex Corporation Device and method for implementing queueing disciplines at high speeds
US5195090A (en) 1991-07-09 1993-03-16 At&T Bell Laboratories Wireless access telephone-to-telephone network interface architecture
US5345467A (en) 1991-07-10 1994-09-06 Interdigital Technology Corp. CDMA cellular hand-off apparatus and method
US5179571A (en) * 1991-07-10 1993-01-12 Scs Mobilecom, Inc. Spread spectrum cellular handoff apparatus and method
US5276684A (en) 1991-07-22 1994-01-04 International Business Machines Corporation High performance I/O processor
US5463623A (en) * 1991-07-31 1995-10-31 At&T Ipm Corp. Integrated wireless telecommunication and local area network system
US5133525A (en) 1991-08-01 1992-07-28 Good Brian G Can support device
US5210771A (en) * 1991-08-01 1993-05-11 Motorola, Inc. Multiple user spread-spectrum communication system
US5159283A (en) 1991-08-26 1992-10-27 Motorola, Inc. Power amplifier
US5159608A (en) 1991-08-28 1992-10-27 Falconer David D Method and apparatus for using orthogonal coding in a communication system
US5204874A (en) 1991-08-28 1993-04-20 Motorola, Inc. Method and apparatus for using orthogonal coding in a communication system
EP0531028A3 (en) 1991-09-06 1993-11-10 Qualcomm Inc Multi-transmitter wide-area cellular broadcast communication system
US5392023A (en) 1991-09-06 1995-02-21 Motorola, Inc. Data communication system with automatic power control
FI88981C (fi) 1991-09-09 1993-07-26 Elektrobit Oy Foerfarande foer automatisk reglering av saendningseffekten i en saendar-mottagarenhet laempad foer en koduppdelad multipelaotkomstomgivning som utnyttjar direktsekvensspridning
FR2681199B1 (fr) * 1991-09-11 1993-12-03 Agence Spatiale Europeenne Procede et dispositif pour multiplexer des signaux de donnees.
US5321721A (en) * 1991-09-13 1994-06-14 Sony Corporation Spread spectrum communication system and transmitter-receiver
JPH0583381A (ja) 1991-09-19 1993-04-02 Fujitsu Ltd 局線着信接続制御方式
US5289527A (en) * 1991-09-20 1994-02-22 Qualcomm Incorporated Mobile communications device registration method
US5469452A (en) 1991-09-27 1995-11-21 Qualcomm Incorporated Viterbi decoder bit efficient chainback memory method and decoder incorporating same
US5293641A (en) 1991-10-03 1994-03-08 Telefonaktiebolaget L M Ericsson Signal strength controlled directed retry in a mobile radiotelephone system
US5239685A (en) 1991-10-08 1993-08-24 Qualcomm Incorporated Process for fabricating a MMIC hybrid device and a transceiver fabricated thereby
US5179591A (en) 1991-10-16 1993-01-12 Motorola, Inc. Method for algorithm independent cryptographic key management
IT1253129B (it) 1991-10-25 1995-07-10 Sicaf Srl Piastra adattatrice per monoblocchi refrigeranti di celle frigorifere e similari,nonche' monoblocco incorporante tale piastra
US5245629A (en) * 1991-10-28 1993-09-14 Motorola, Inc. Method for compensating for capacity overload in a spread spectrum communication system
US5262974A (en) 1991-10-28 1993-11-16 Trw Inc. Programmable canonic signed digit filter chip
JP2776094B2 (ja) 1991-10-31 1998-07-16 日本電気株式会社 可変変調通信方法
JP2953153B2 (ja) 1991-10-31 1999-09-27 日本電気株式会社 送信電力制御方式
US5247702A (en) 1991-11-08 1993-09-21 Teknekron Communications Systems, Inc. Method and an apparatus for establishing a wireless communication link between a base unit and a remote unit
US5267244A (en) 1991-11-08 1993-11-30 Teknekron Communications Systems, Inc. Method and an apparatus for establishing the functional capabilities for wireless communications between a base unit and a remote unit
IL100029A (en) * 1991-11-11 1994-02-27 Motorola Inc Method and apparatus for improving detection of data bits in a slow frequency hopping communication system
JP2741809B2 (ja) 1991-11-22 1998-04-22 シンワ株式会社 テーププレーヤの早送りおよび巻戻し装置
JP2554219B2 (ja) * 1991-11-26 1996-11-13 日本電信電話株式会社 ディジタル信号の重畳伝送方式
JP3198423B2 (ja) 1991-11-28 2001-08-13 イビデン株式会社 黒鉛鋳型
DE4139665A1 (de) * 1991-12-02 1993-06-03 Hoechst Ag Verfahren zur herstellung von polymerisaten des tetrafluorethylens
JPH0746180Y2 (ja) 1991-12-04 1995-10-25 大建工業株式会社 収納棚
JPH05160861A (ja) 1991-12-06 1993-06-25 Fujitsu Ltd ディジタル伝送方式
US5237455A (en) * 1991-12-06 1993-08-17 Delco Electronics Corporation Optical combiner with integral support arm
JPH05235906A (ja) 1991-12-25 1993-09-10 Toshiba Corp 多元符号の復号装置及びこれを用いた誤り訂正・検出方式
EP0548939B1 (en) * 1991-12-26 2000-09-13 Nec Corporation Transmission power control system capable of keeping signal quality constant in mobile communication network
US5260967A (en) * 1992-01-13 1993-11-09 Interdigital Technology Corporation CDMA/TDMA spread-spectrum communications system and method
IL118832A (en) * 1992-01-16 1998-03-10 Qualcomm Inc Method and device for data integration and transmission and overuse
US5414729A (en) * 1992-01-24 1995-05-09 Novatel Communications Ltd. Pseudorandom noise ranging receiver which compensates for multipath distortion by making use of multiple correlator time delay spacing
JP2850619B2 (ja) 1992-01-27 1999-01-27 日本電気株式会社 移動通信システムの送信電力制御方式
TW224191B (zh) 1992-01-28 1994-05-21 Qualcomm Inc
GB9201879D0 (en) 1992-01-29 1992-03-18 Millicom Holdings Uk Ltd Communication system
JPH05219129A (ja) 1992-02-05 1993-08-27 Nec Eng Ltd 搬送波電力制御付き直交変調器
JPH05227124A (ja) 1992-02-10 1993-09-03 Sharp Corp 符号分割多元アクセス通信方式
US5487089A (en) 1992-02-17 1996-01-23 Matsushita Electric Industrial Co., Ltd. Nyquist filter for digital modulation
SE9200607D0 (sv) 1992-02-28 1992-02-28 Ericsson Telefon Ab L M Communication methods and mean in a tdma cellular mobile radio system
US5392287A (en) * 1992-03-05 1995-02-21 Qualcomm Incorporated Apparatus and method for reducing power consumption in a mobile communications receiver
ZA931077B (en) 1992-03-05 1994-01-04 Qualcomm Inc Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a cdma cellular communications system
US5267261A (en) 1992-03-05 1993-11-30 Qualcomm Incorporated Mobile station assisted soft handoff in a CDMA cellular communications system
FI90385C (fi) 1992-03-11 1994-01-25 Salon Televisiotehdas Oy Salattujen dataviestien tunnistus yksisuuntaisessa monipisteverkossa
US5258940A (en) 1992-03-16 1993-11-02 International Business Machines Corporation Distributed arithmetic digital filter in a partial-response maximum-likelihood disk drive system
US5305468A (en) 1992-03-18 1994-04-19 Motorola, Inc. Power control method for use in a communication system
SE9200915D0 (sv) * 1992-03-24 1992-03-24 Ericsson Telefon Ab L M Methods in a cellular mobile radio communincation system
US5237586A (en) * 1992-03-25 1993-08-17 Ericsson-Ge Mobile Communications Holding, Inc. Rake receiver with selective ray combining
DE4210305A1 (de) * 1992-03-30 1993-10-07 Sel Alcatel Ag Verfahren, Sender und Empfänger zur Informationsdatenübertragung mit veränderlichem Verkehrsaufkommen und Leitstation zur Koordinierung mehrerer solcher Sender und Empfänger
US5311176A (en) 1992-03-31 1994-05-10 Motorola, Inc. Method and apparatus for generating Walsh codes
US5216692A (en) 1992-03-31 1993-06-01 Motorola, Inc. Method and apparatus for adjusting a power control threshold in a communication system
US5228054A (en) * 1992-04-03 1993-07-13 Qualcomm Incorporated Power-of-two length pseudo-noise sequence generator with fast offset adjustment
JPH05292012A (ja) * 1992-04-07 1993-11-05 Nec Corp 移動体通信システムの輻輳制御方式
GB9207861D0 (en) 1992-04-09 1992-05-27 Philips Electronics Uk Ltd A method of time measurement in a communications system,a communications system and a receiving apparatus for use in the system
US5239557A (en) 1992-04-10 1993-08-24 Ericsson/Ge Mobile Communications Discountinuous CDMA reception
SG50659A1 (en) * 1992-04-10 1998-07-20 Ericsson Ge Mobile Inc Random access in mobile telephone system
US5353352A (en) * 1992-04-10 1994-10-04 Ericsson Ge Mobile Communications Inc. Multiple access coding for radio communications
US5345598A (en) * 1992-04-10 1994-09-06 Ericsson-Ge Mobile Communications Holding, Inc. Duplex power control system in a communication network
MX9301888A (es) * 1992-04-10 1993-11-30 Ericsson Telefon Ab L M Acceso multiple de division de tiempo para acceso de un movil en un sistema de acceso multiple de division de codigo.
TW214620B (en) * 1992-04-13 1993-10-11 Ericsson Ge Mobile Communicat Calling channel in CDMA communications system
US5295153A (en) 1992-04-13 1994-03-15 Telefonaktiebolaget L M Ericsson CDMA frequency allocation
US5319450A (en) 1992-04-14 1994-06-07 Fuji Photo Film Co., Ltd. Circuitry for cancelling offsets of multiplexed color video signals
EP0566551B1 (en) 1992-04-17 1999-08-04 Telefonaktiebolaget L M Ericsson Mobile assisted handover using CDMA
JPH0583381U (ja) 1992-04-17 1993-11-12 トキコ株式会社 空気圧縮機用サイレンサ
JPH05300077A (ja) 1992-04-17 1993-11-12 Nippon Telegr & Teleph Corp <Ntt> スペクトル拡散伝送方式を用いた移動通信システムのゾーン構成法
US5232347A (en) * 1992-05-08 1993-08-03 Vonbergen Howard J Fan mounting bracket apparatus
US5365551A (en) 1992-12-15 1994-11-15 Micron Technology, Inc. Data communication transceiver using identification protocol
JP3168063B2 (ja) 1992-05-18 2001-05-21 富士通株式会社 スぺクトラム拡散通信装置およびその通信方法
US5287299A (en) 1992-05-26 1994-02-15 Monolith Technologies Corporation Method and apparatus for implementing a digital filter employing coefficients expressed as sums of 2 to an integer power
US5316422A (en) 1992-06-01 1994-05-31 Qualcomm Incorporated Blind fastener
US5339184A (en) 1992-06-15 1994-08-16 Gte Laboratories Incorporated Fiber optic antenna remoting for multi-sector cell sites
JP3251642B2 (ja) 1992-06-19 2002-01-28 三菱レイヨン株式会社 不飽和カルボン酸製造用触媒の調製法
JP3376583B2 (ja) 1992-06-22 2003-02-10 モトローラ・インコーポレイテッド ハンドオフコマンド送信の間の電力レベル増大
US5297161A (en) * 1992-06-29 1994-03-22 Motorola Inc. Method and apparatus for power estimation in an orthogonal coded communication system
US5475861A (en) 1992-07-01 1995-12-12 Motorola, Inc. Method for controlling transmission power in a communication system
US5613228A (en) * 1992-07-06 1997-03-18 Micron Technology, Inc. Gain adjustment method in two-way communication systems
JPH0677963A (ja) * 1992-07-07 1994-03-18 Hitachi Ltd 通信方式および端末装置
DE4222821C2 (de) * 1992-07-08 1994-09-22 Ivoclar Ag Modifiziertes Chlorhexidin-Addukt
JPH0750631Y2 (ja) 1992-07-27 1995-11-15 株式会社ケンロック 締付バンド
US5285940A (en) * 1992-08-03 1994-02-15 Goulter Victor H Folding neck-supported food tray
US5465399A (en) 1992-08-19 1995-11-07 The Boeing Company Apparatus and method for controlling transmitted power in a radio network
JPH0677767A (ja) 1992-08-26 1994-03-18 Sony Corp ノンリニアキャンセラー
US5418624A (en) 1992-09-02 1995-05-23 Ricoh Co., Ltd. Negotiation method and apparatus enabling a facsimile machine to use async data communication protocols
GB9218876D0 (en) 1992-09-07 1992-10-21 Millicom Holdings Uk Ltd Communication system
US5353332A (en) 1992-09-16 1994-10-04 Ericsson Ge Mobile Communications Inc. Method and apparatus for communication control in a radiotelephone system
US5311459A (en) 1992-09-17 1994-05-10 Eastman Kodak Company Selectively configurable integrated circuit device for performing multiple digital signal processing functions
US5307405A (en) 1992-09-25 1994-04-26 Qualcomm Incorporated Network echo canceller
US5381443A (en) 1992-10-02 1995-01-10 Motorola Inc. Method and apparatus for frequency hopping a signalling channel in a communication system
JP3099848B2 (ja) 1992-10-05 2000-10-16 株式会社エヌ・ティ・ティ・ドコモ 移動無線機
US5603081A (en) 1993-11-01 1997-02-11 Telefonaktiebolaget Lm Ericsson Method for communicating in a wireless communication system
US5359182A (en) 1992-10-06 1994-10-25 Interdigital Technology Corporation Wireless telephone debit card system and method
JPH06133351A (ja) 1992-10-15 1994-05-13 Fujitsu Ltd 通信制御システム
JPH06132871A (ja) 1992-10-19 1994-05-13 Oki Electric Ind Co Ltd 送信電力制御装置
JPH06132872A (ja) * 1992-10-19 1994-05-13 Oki Electric Ind Co Ltd 移動局送信電力制御装置
JP3012414B2 (ja) 1992-10-23 2000-02-21 日本電気通信システム株式会社 制御チャネル干渉検出方式
SE500565C2 (sv) * 1992-10-26 1994-07-18 Ericsson Telefon Ab L M Metod att åstadkomma slumpmässig access i ett mobilradiosystem
US5406559A (en) 1992-11-02 1995-04-11 National Semiconductor Corporation Isochronous link protocol
DE69331375T2 (de) 1992-11-04 2002-08-14 Nippon Telegraph & Telephone Mobiles kommunikationssystem mit kodemultiplexvielfachzugriff
JP3212390B2 (ja) * 1992-11-17 2001-09-25 クラリオン株式会社 スライディング相関器
ZA938324B (en) 1992-11-24 1994-06-07 Qualcomm Inc Pilot carrier dot product circuit
US5570349A (en) 1994-06-07 1996-10-29 Stanford Telecommunications, Inc. Wireless direct sequence spread spectrum digital cellular telephone system
MX9307243A (es) 1992-11-24 1994-05-31 Ericsson Telefon Ab L M Reintento analogico.
US5341395A (en) 1992-11-24 1994-08-23 At&T Bell Laboratories Data recovery technique for asynchronous CDMA systems
ZA938323B (en) 1992-11-24 1994-08-01 Qualcomm Inc Tractor-trailer electronic transmission path
US5440632A (en) 1992-12-02 1995-08-08 Scientific-Atlanta, Inc. Reprogrammable subscriber terminal
US5341456A (en) 1992-12-02 1994-08-23 Qualcomm Incorporated Method for determining speech encoding rate in a variable rate vocoder
US5299228A (en) * 1992-12-28 1994-03-29 Motorola, Inc. Method and apparatus of reducing power consumption in a CDMA communication unit
US5349606A (en) * 1992-12-31 1994-09-20 Gte Government Systems Corporation Apparatus for multipath DSSS communications
BR9306125A (pt) * 1993-01-13 1997-08-19 Motorola Inc Sistema de comunicação para transmissão de mensagens de retorno empregando estações de base fixas e controlador central acoplado para controlar ditas estações de base
JPH06224880A (ja) 1993-01-25 1994-08-12 Canon Inc 無線データ通信装置
US5333175A (en) 1993-01-28 1994-07-26 Bell Communications Research, Inc. Method and apparatus for dynamic power control in TDMA portable radio systems
US5337338A (en) 1993-02-01 1994-08-09 Qualcomm Incorporated Pulse density modulation circuit (parallel to serial) comparing in a nonsequential bit order
US5353302A (en) 1993-02-03 1994-10-04 At&T Bell Laboratories Signal despreader for CDMA systems
WO1994018799A1 (en) 1993-02-03 1994-08-18 Qualcomm Incorporated Interframe video encoding and decoding system
FI96554C (fi) 1993-02-05 1996-07-10 Nokia Mobile Phones Ltd Aikajakoinen solukkoradiopuhelinjärjestelmä ja radiopuhelin sitä varten
WO1994018756A1 (en) 1993-02-11 1994-08-18 Motorola, Inc. Method and apparatus for controlling a power level of a subscriber unit of a wireless communication system
US5459759A (en) * 1993-02-17 1995-10-17 Interdigital Technology Corporation Frequency hopping code division multiple access system and method
US5488629A (en) * 1993-02-17 1996-01-30 Matsushita Electric Industrial Co., Ltd. Signal processing circuit for spread spectrum communications
US5286536A (en) * 1993-02-19 1994-02-15 Creative Extruded Products, Inc. Indentation-recoverable molding strip
US5396516A (en) * 1993-02-22 1995-03-07 Qualcomm Incorporated Method and system for the dynamic modification of control paremeters in a transmitter power control system
JPH06252797A (ja) 1993-02-23 1994-09-09 Sony Corp 送受信装置
US5341396A (en) * 1993-03-02 1994-08-23 The Boeing Company Multi-rate spread system
US5581547A (en) 1993-03-05 1996-12-03 Ntt Mobile Communications Network Inc. Random access communication method by CDMA and mobile station equipment using the same
JPH0666974U (ja) 1993-03-05 1994-09-20 リョービ株式会社 衝撃工具の工具保持装置
US5392641A (en) * 1993-03-08 1995-02-28 Chrysler Corporation Ionization misfire detection apparatus and method for an internal combustion engine
FR2702614B1 (fr) 1993-03-09 1995-04-14 Alcatel Radiotelephone Procédé de contrôle de puissance du paquet d'accés émis par un mobile dans un système de radiocommunication, et système mettant en Óoeuvre ce procédé.
JP2802870B2 (ja) * 1993-03-10 1998-09-24 エヌ・ティ・ティ移動通信網株式会社 符号分割多重移動通信機及び符号分割多重移動通信のセル選択方法
JP3277593B2 (ja) 1993-03-11 2002-04-22 株式会社日立製作所 スペクトル拡散通信システム
US5329547A (en) * 1993-03-11 1994-07-12 Motorola, Inc. Method and apparatus for coherent communication in a spread-spectrum communication system
JPH06268574A (ja) * 1993-03-11 1994-09-22 Hitachi Ltd セルラ移動通信システム
US5509126A (en) 1993-03-16 1996-04-16 Apple Computer, Inc. Method and apparatus for a dynamic, multi-speed bus architecture having a scalable interface
US5347536A (en) * 1993-03-17 1994-09-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Multipath noise reduction for spread spectrum signals
US5812542A (en) 1996-03-18 1998-09-22 Motorola, Inc. Method for determining weighting coefficients in a CDMA radio receiver
JPH06276176A (ja) 1993-03-18 1994-09-30 Fujitsu Ltd Cdma通信方式
AU681642B2 (en) 1993-03-26 1997-09-04 Alps Electric Co., Ltd. Power amplifier bias control circuit and method
JPH0677963U (ja) 1993-04-05 1994-11-01 戸田精機株式会社 金属湯汲出し装置
EP0620518B1 (en) * 1993-04-06 1999-10-06 Hewlett-Packard Company Methods and apparatus for generating linear-feedback-shift-register sequences
US5420593A (en) 1993-04-09 1995-05-30 Trimble Navigation Limited Method and apparatus for accelerating code correlation searches in initial acquisition and doppler and code phase in re-acquisition of GPS satellite signals
US5870427A (en) * 1993-04-14 1999-02-09 Qualcomm Incorporated Method for multi-mode handoff using preliminary time alignment of a mobile station operating in analog mode
JP2576357B2 (ja) 1993-04-21 1997-01-29 日本電気株式会社 多値直交振幅変調波歪補償回路
US5363403A (en) 1993-04-22 1994-11-08 Interdigital Technology Corporation Spread spectrum CDMA subtractive interference canceler and method
US5305349A (en) 1993-04-29 1994-04-19 Ericsson Ge Mobile Communications Inc. Quantized coherent rake receiver
EP0622207B1 (en) * 1993-04-30 1999-06-02 Hewlett-Packard Company Common ink jet cartridge platform for different print heads
JP3280141B2 (ja) 1993-04-30 2002-04-30 キヤノン株式会社 スペクトラム拡散受信装置
US5373259A (en) 1993-05-05 1994-12-13 Qualcomm Incorporated Voltage controlled oscillator with dissimilar varactor diodes
IT1270938B (it) * 1993-05-14 1997-05-16 Cselt Centro Studi Lab Telecom Procedimento per il controllo della trasmissione su uno stesso canale di flussi informativi a velocita' variabile in sistemi di comunicazione tra mezzi mobili, e sistema utilizzante tale procedimento
US5414732A (en) 1993-05-17 1995-05-09 Loral Aerospace Corp. Adaptive equalizer and method for operation at high symbol rates
JP2616244B2 (ja) * 1993-05-18 1997-06-04 日本電気株式会社 移動通信システムのチャネル割当て方法
JPH06334588A (ja) 1993-05-25 1994-12-02 Nec Corp 移動無線局通信方式および装置
JP3152013B2 (ja) 1993-06-01 2001-04-03 松下電器産業株式会社 スペクトラム拡散通信方式
WO1994028640A1 (en) * 1993-06-02 1994-12-08 Roke Manor Research Limited Rake receiver combining all the useful multipath components of a spread spectrum signal
US5339046A (en) 1993-06-03 1994-08-16 Alps Electric Co., Ltd. Temperature compensated variable gain amplifier
US5359624A (en) 1993-06-07 1994-10-25 Motorola, Inc. System and method for chip timing synchronization in an adaptive direct sequence CDMA communication system
US5353300A (en) 1993-06-07 1994-10-04 Motorola, Inc. Communication method for an adaptive direct sequence CDMA communication system
US5297162A (en) 1993-06-04 1994-03-22 Motorola, Inc. System and method for bit timing synchronization in an adaptive direct sequence CDMA communication system
US5408697A (en) 1993-06-14 1995-04-18 Qualcomm Incorporated Temperature-compensated gain-controlled amplifier having a wide linear dynamic range
FR2706709B1 (fr) 1993-06-16 1995-08-25 Matra Communication Procédé de synchronisation pour des communications radiotéléphoniques à accès multiple à répartition par codes.
US5603113A (en) 1993-06-16 1997-02-11 Oki Telecom Automatic gain control circuit for both receiver and transmitter adjustable amplifiers including a linear signal level detector with DC blocking, DC adding, and AC removing components
US5400597A (en) * 1993-06-18 1995-03-28 Mirabile; Nicholas F. Turbocharger system with electric blower
JP3067804B2 (ja) 1993-06-18 2000-07-24 クァルコム・インコーポレーテッド 受信信号のデータレートを決定する方法及び装置
US5442627A (en) 1993-06-24 1995-08-15 Qualcomm Incorporated Noncoherent receiver employing a dual-maxima metric generation process
US5546424A (en) 1993-06-30 1996-08-13 Casio Computer Co., Ltd. Spread spectrum communication system
US5430724A (en) 1993-07-02 1995-07-04 Telefonaktiebolaget L M Ericsson TDMA on a cellular communications system PCM link
US6031867A (en) * 1993-07-02 2000-02-29 Multi-Tech Systems, Inc. Modem with firmware upgrade feature
JP2726220B2 (ja) * 1993-07-05 1998-03-11 沖電気工業株式会社 符号分割多元接続装置
JPH0730483A (ja) * 1993-07-13 1995-01-31 Matsushita Electric Ind Co Ltd 無線電話装置
FI933209A (fi) 1993-07-14 1995-01-15 Nokia Telecommunications Oy Menetelmä lähetystehon säätämiseksi solukkoradiojärjestelmässä sekä tilaajapäätelaite
JP2863975B2 (ja) 1993-07-16 1999-03-03 松下電器産業株式会社 Cdma方式送信装置および受信装置、cdma方式送信方法およびcdma方式移動通信システム
CA2127616C (en) 1993-07-16 1999-02-09 Osamu Kato Mobile communication unit
US5725165A (en) * 1993-07-17 1998-03-10 W. Schlafhorst Ag & Co. Method of monitoring the moving yarn at a winding station of an automatic winding frame
MY112371A (en) 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
JP3457357B2 (ja) * 1993-07-23 2003-10-14 株式会社日立製作所 スペクトル拡散通信システム、送信電力制御方法、移動端末装置及び基地局
US5870393A (en) * 1995-01-20 1999-02-09 Hitachi, Ltd. Spread spectrum communication system and transmission power control method therefor
WO1995003549A1 (en) 1993-07-26 1995-02-02 Qualcomm Incorporated Method and apparatus for controlling the exposure to rf transmissions
FR2708405B1 (fr) 1993-07-27 1995-09-01 Mars Actel Répartiteur téléphonique.
US5506863A (en) 1993-08-25 1996-04-09 Motorola, Inc. Method and apparatus for operating with a hopping control channel in a communication system
GB9315845D0 (en) * 1993-07-30 1993-09-15 Roke Manor Research Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit
US5574775A (en) * 1993-08-04 1996-11-12 Lucent Technologies, Inc. Universal wireless radiotelephone system
US5406615A (en) * 1993-08-04 1995-04-11 At&T Corp. Multi-band wireless radiotelephone operative in a plurality of air interface of differing wireless communications systems
WO1995005037A1 (fr) * 1993-08-06 1995-02-16 Ntt Mobile Communications Network Inc. Recepteur et repeteur pour communications a spectre etale
JP3277412B2 (ja) 1993-08-10 2002-04-22 ソニー株式会社 スペクトル拡散通信用受信方法及び装置
JPH0758690A (ja) * 1993-08-11 1995-03-03 Fujitsu Ltd 送信電力制御方式
US5745531A (en) 1993-08-11 1998-04-28 Ntt Mobile Communications Network, Inc. Automatic gain control apparatus, communication system, and automatic gain control method
FR2709029B1 (fr) 1993-08-13 1995-10-20 Matra Communication Procédé de transmission pour des radio communications AMRC et dispositifs pour sa mise en Óoeuvre.
FR2709028B1 (fr) 1993-08-13 1995-10-20 Matra Communication Procédé de sélection des trajets de propagation retenus pour recevoir des messages transmis par radiocommunication AMRC.
GB2281477A (en) 1993-08-20 1995-03-01 American Telephone & Telegraph Operation of a CDMA net
GB9317604D0 (en) 1993-08-24 1993-10-06 Philips Electronics Uk Ltd Receiver for ds-cdma signals
US5365585A (en) * 1993-08-30 1994-11-15 Motorola, Inc. Method and apparatus for encryption having a feedback register with selectable taps
US5377223A (en) 1993-08-30 1994-12-27 Interdigital Technology Corporation Notch filtering a spread spectrum signal using fourier series coefficients
US5379242A (en) 1993-09-01 1995-01-03 National Semiconductor Corporation ROM filter
JP3205137B2 (ja) 1993-09-03 2001-09-04 株式会社日立製作所 無線通信システム及び移動無線端末
ZA946674B (en) * 1993-09-08 1995-05-02 Qualcomm Inc Method and apparatus for determining the transmission data rate in a multi-user communication system
US5404376A (en) * 1993-09-09 1995-04-04 Ericsson-Ge Mobile Communications Inc. Navigation assistance for call handling in mobile telephone systems
JP2600580B2 (ja) * 1993-09-09 1997-04-16 日本電気株式会社 同期式pn符号系列発生回路
US5361276A (en) * 1993-09-13 1994-11-01 At&T Bell Laboratories All digital maximum likelihood based spread spectrum receiver
JPH0787011A (ja) * 1993-09-14 1995-03-31 Toshiba Corp 無線通信システム及び無線装置及びスイッチ
US5412686A (en) * 1993-09-17 1995-05-02 Motorola Inc. Method and apparatus for power estimation in a communication system
KR960003847B1 (ko) 1993-09-18 1996-03-22 삼성전자주식회사 대역 확산 통신 방식 데이타 변복조장치
JP3192839B2 (ja) * 1993-09-20 2001-07-30 富士通株式会社 初期送信電力の決定方法
GB2282300B (en) * 1993-09-22 1997-10-22 Northern Telecom Ltd Communications system and receiver devices therefor
EP0671083B1 (en) 1993-09-24 1997-01-08 Nokia Telecommunications Oy Method and apparatus for controlling signal quality in a cdma cellular telecommunications system
ZA947317B (en) 1993-09-24 1995-05-10 Qualcomm Inc Multirate serial viterbi decoder for code division multiple access system applications
JP2911090B2 (ja) * 1993-09-29 1999-06-23 エヌ・ティ・ティ移動通信網株式会社 移動通信の基地局装置及び移動局装置
CH685237A5 (de) 1993-10-06 1995-05-15 Otto Hofstetter Ag Werkzeug Un Spritzgiess-Formwerkzeug.
KR100205529B1 (ko) 1993-10-14 1999-07-01 오보시 코지 상관 검출 및 통신 장치
US5377226A (en) 1993-10-19 1994-12-27 Hughes Aircraft Company Fractionally-spaced equalizer for a DS-CDMA system
US5537434A (en) 1993-10-25 1996-07-16 Telefonaktiebolaget Lm Ericsson Frequency hopping control channel in a radio communication system
US5649299A (en) 1993-10-27 1997-07-15 Motorola, Inc. Apparatus and method for adapting a digital radiotelephone system to increased subscriber traffic
US6157668A (en) 1993-10-28 2000-12-05 Qualcomm Inc. Method and apparatus for reducing the average transmit power of a base station
ZA948134B (en) 1993-10-28 1995-06-13 Quaqlcomm Inc Method and apparatus for performing handoff between sectors of a common base station
US5490165A (en) 1993-10-28 1996-02-06 Qualcomm Incorporated Demodulation element assignment in a system capable of receiving multiple signals
US6005856A (en) 1993-11-01 1999-12-21 Omnipoint Corporation Communication protocol for spread spectrum wireless communication system
US5414728A (en) * 1993-11-01 1995-05-09 Qualcomm Incorporated Method and apparatus for bifurcating signal transmission over in-phase and quadrature phase spread spectrum communication channels
US5546459A (en) 1993-11-01 1996-08-13 Qualcomm Incorporated Variable block size adaptation algorithm for noise-robust acoustic echo cancellation
US6088590A (en) 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
WO1995012945A1 (en) * 1993-11-01 1995-05-11 Omnipoint Corporation Despreading/demodulating direct sequence spread spectrum signals
US5471497A (en) * 1993-11-01 1995-11-28 Zehavi; Ephraim Method and apparatus for variable rate signal transmission in a spread spectrum communication system using coset coding
ES2223046T3 (es) 1993-11-01 2005-02-16 Qualcomm Incorporated Procedimiento y aparato para la transmision de datos digitales de velocidad variable.
US5459758A (en) 1993-11-02 1995-10-17 Interdigital Technology Corporation Noise shaping technique for spread spectrum communications
FR2712129B1 (fr) * 1993-11-02 1995-12-01 Commissariat Energie Atomique Procédé de transmission à modulation de phase synchrone et à étalement de spectre par séquence directe, émetteur et récepteur correspondants et composant pour ce récepteur.
US5459760A (en) 1993-11-05 1995-10-17 Matsushita Electric Industrial Co., Ltd. Transmitting and receiving apparatus
JP3003839B2 (ja) 1993-11-08 2000-01-31 エヌ・ティ・ティ移動通信網株式会社 Cdma通信方法および装置
ZA948428B (en) 1993-11-15 1995-06-30 Qualcomm Inc Method for providing a voice request in a wireless environment
US5479475A (en) 1993-11-15 1995-12-26 Qualcomm Incorporated Method and system for providing communication between standard terminal equipment using a remote communication unit
US5539531A (en) 1993-11-15 1996-07-23 Qualcomm Incorporated System and method for facsimile data transmission
US5487175A (en) 1993-11-15 1996-01-23 Qualcomm Incorporated Method of invoking and canceling voice or data service from a mobile unit
AU1175595A (en) 1993-11-15 1995-06-06 Qualcomm Incorporated Data communication using a dual mode radiotelephone
WO1995014345A1 (en) 1993-11-15 1995-05-26 Qualcomm Incorporated A method for handling unrecognizable commands in a wireless environment
US5422908A (en) * 1993-11-22 1995-06-06 Interdigital Technology Corp. Phased array spread spectrum system and method
US5383219A (en) * 1993-11-22 1995-01-17 Qualcomm Incorporated Fast forward link power control in a code division multiple access system
US5440597A (en) * 1993-11-23 1995-08-08 Nokia Mobile Phones Ltd. Double dwell maximum likelihood acquisition system with continuous decision making for CDMA and direct spread spectrum system
US5615232A (en) 1993-11-24 1997-03-25 Novatel Communications Ltd. Method of estimating a line of sight signal propagation time using a reduced-multipath correlation function
US5422909A (en) 1993-11-30 1995-06-06 Motorola, Inc. Method and apparatus for multi-phase component downconversion
JPH07154297A (ja) 1993-11-30 1995-06-16 Fuji Xerox Co Ltd スペクトル拡散伝送装置
KR960003102B1 (ko) * 1993-12-01 1996-03-04 재단법인 한국전자통신연구소 씨.디.엠.에이(cdma) 이동통신 기지국 변조장치의 채널 변조회로 및 그를 이용한 변조장치
IT1261365B (it) * 1993-12-02 1996-05-20 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per il controllo di potenza nella tratta stazione base-mezzo mobile di un sistema radiomobile con accesso a divisione di codice
US5418813A (en) 1993-12-06 1995-05-23 Motorola, Inc. Method and apparatus for creating a composite waveform
JP3158821B2 (ja) 1993-12-14 2001-04-23 株式会社日立製作所 Cdma移動通信システムおよび装置
US5406629A (en) 1993-12-20 1995-04-11 Motorola, Inc. Apparatus and method for digitally processing signals in a radio frequency communication system
JP2655068B2 (ja) * 1993-12-30 1997-09-17 日本電気株式会社 スペクトラム拡散受信機
JP2605615B2 (ja) * 1993-12-30 1997-04-30 日本電気株式会社 スペクトラム拡散受信機
JP2689890B2 (ja) * 1993-12-30 1997-12-10 日本電気株式会社 スペクトラム拡散受信機
FI94579C (fi) 1994-01-12 1995-09-25 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä
USD356560S (en) * 1994-01-14 1995-03-21 Qualcomm Incorporated Portable phone
JP2992670B2 (ja) 1994-01-31 1999-12-20 松下電器産業株式会社 移動体通信装置
US5469471A (en) 1994-02-01 1995-11-21 Qualcomm Incorporated Method and apparatus for providing a communication link quality indication
US5465269A (en) 1994-02-02 1995-11-07 Motorola, Inc. Method and apparatus for encoding and decoding a supplementary signal
US5452339A (en) 1994-02-09 1995-09-19 Harris Corporation Local/remote modification of electronically alterable operating system firmware resident in redundant flash memory of remote unit for testing/conditioning subscriber line circuits
JPH07226709A (ja) 1994-02-14 1995-08-22 Matsushita Electric Ind Co Ltd 無線通信システム
ZA95797B (en) 1994-02-14 1996-06-20 Qualcomm Inc Dynamic sectorization in a spread spectrum communication system
US5802110A (en) 1994-02-16 1998-09-01 Matsushita Electric Industrial Co., Ltd. Wireless mobile system
JPH07235913A (ja) 1994-02-23 1995-09-05 Sony Corp スペクトラム拡散通信装置及び信号強度検出装置
EP0700612A4 (en) 1994-02-25 1998-09-30 Motorola Inc TIME MULTIPLEXING METHOD AND APPARATUS RELATING TO THE USE OF SPREAD CODES IN A COMMUNICATION SYSTEM
FI97929C (fi) 1994-02-25 1997-03-10 Nokia Telecommunications Oy Menetelmä eri prioriteetin omaavien puheluiden lähettämiseksi solukkoradioverkossa
US5483549A (en) 1994-03-04 1996-01-09 Stanford Telecommunications, Inc. Receiver having for charge-coupled-device based receiver signal processing
US5491837A (en) * 1994-03-07 1996-02-13 Ericsson Inc. Method and system for channel allocation using power control and mobile-assisted handover measurements
FI941221A (fi) 1994-03-15 1995-09-16 Nokia Mobile Phones Ltd Menetelmä matkaviestinjärjestelmän radiopuhelimen tehonkulutuksen pienentämiseksi ja matkaviestin
JP2856064B2 (ja) 1994-03-30 1999-02-10 日本電気株式会社 ディジタルフィルタ
US5497395A (en) 1994-04-04 1996-03-05 Qualcomm Incorporated Method and apparatus for modulating signal waveforms in a CDMA communication system
JPH07297776A (ja) * 1994-04-22 1995-11-10 Oki Electric Ind Co Ltd 通信システム
JP2904335B2 (ja) 1994-04-27 1999-06-14 エヌ・ティ・ティ移動通信網株式会社 送信電力制御方法および移動局装置
US6018528A (en) 1994-04-28 2000-01-25 At&T Corp System and method for optimizing spectral efficiency using time-frequency-code slicing
US5751739A (en) 1994-04-29 1998-05-12 Lucent Technologies, Inc. Methods of and devices for enhancing communications that use spread spectrum technology
US5544156A (en) * 1994-04-29 1996-08-06 Telefonaktiebolaget Lm Ericsson Direct sequence CDMA coherent uplink detector
US5535278A (en) * 1994-05-02 1996-07-09 Magnavox Electronic Systems Company Global positioning system (GPS) receiver for recovery and tracking of signals modulated with P-code
FI96468C (fi) 1994-05-11 1996-06-25 Nokia Mobile Phones Ltd Liikkuvan radioaseman kanavanvaihdon ohjaaminen ja lähetystehon säätäminen radiotietoliikennejärjestelmässä
JP2980156B2 (ja) * 1994-05-12 1999-11-22 エヌ・ティ・ティ移動通信網株式会社 送信電力制御方法および該制御方法を用いたスペクトル拡散通信装置
JP2974274B2 (ja) 1994-05-12 1999-11-10 エヌ・ティ・ティ移動通信網株式会社 送信電力制御方法および送信電力制御装置
JP2993554B2 (ja) 1994-05-12 1999-12-20 エヌ・ティ・ティ移動通信網株式会社 送信電力制御法および前記送信電力制御法を用いた通信装置
US5442625A (en) * 1994-05-13 1995-08-15 At&T Ipm Corp Code division multiple access system providing variable data rate access to a user
JP2877248B2 (ja) 1994-05-20 1999-03-31 エヌ・ティ・ティ移動通信網株式会社 Cdmaシステムにおける送信電力制御方法および装置
FI99182C (fi) 1994-05-26 1997-10-10 Nokia Telecommunications Oy Menetelmä tukiaseman yleislähetyskanavan kuuluvuuden parantamiseksi, sekä solukkoradiojärjestelmä
US5537397A (en) 1994-06-07 1996-07-16 Aloha Networks, Inc. Spread aloha CDMA data communications
JP3198011B2 (ja) 1994-06-07 2001-08-13 株式会社リコー 無線伝送システム
US5551057A (en) 1994-06-08 1996-08-27 Lucent Technologies Inc. Cellular mobile radio system power control
JPH07336323A (ja) 1994-06-10 1995-12-22 Oki Electric Ind Co Ltd 符号分割多元接続装置
FI111580B (fi) 1994-06-13 2003-08-15 Nokia Corp Tehonsäätömenetelmä ja -järjestely handoverin yhteydessä matkaviestinjärjestelmässä
US5511067A (en) 1994-06-17 1996-04-23 Qualcomm Incorporated Layered channel element in a base station modem for a CDMA cellular communication system
US5521938A (en) 1994-07-01 1996-05-28 Motorola, Inc. Apparatus for performing frequency conversion in a communication system
FI943249A (fi) 1994-07-07 1996-01-08 Nokia Mobile Phones Ltd Menetelmä vastaanottimen ohjaamiseksi ja vastaanotin
US5603096A (en) 1994-07-11 1997-02-11 Qualcomm Incorporated Reverse link, closed loop power control in a code division multiple access system
ZA955605B (en) 1994-07-13 1996-04-10 Qualcomm Inc System and method for simulating user interference received by subscriber units in a spread spectrum communication network
ZA955600B (en) 1994-07-13 1996-04-02 Qualcomm Inc System and method for simulating interference received by subscriber units in a spread spectrum communication network
US5987014A (en) 1994-07-14 1999-11-16 Stanford Telecommunications, Inc. Multipath resistant, orthogonal code-division multiple access system
CA2153516C (en) 1994-07-20 1999-06-01 Yasuo Ohgoshi Mobile station for cdma mobile communication system and detection method of the same
US5548812A (en) 1994-07-21 1996-08-20 Qualcomm Incorporated Method and apparatus for balancing the forward link handoff boundary to the reverse link handoff boundary in a cellular communication system
US5604730A (en) 1994-07-25 1997-02-18 Qualcomm Incorporated Remote transmitter power control in a contention based multiple access system
US5822318A (en) 1994-07-29 1998-10-13 Qualcomm Incorporated Method and apparatus for controlling power in a variable rate communication system
US5499236A (en) 1994-08-16 1996-03-12 Unisys Corporation Synchronous multipoint-to-point CDMA communication system
US5614914A (en) 1994-09-06 1997-03-25 Interdigital Technology Corporation Wireless telephone distribution system with time and space diversity transmission for determining receiver location
US5610940A (en) * 1994-09-09 1997-03-11 Omnipoint Corporation Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal
US5548616A (en) 1994-09-09 1996-08-20 Nokia Mobile Phones Ltd. Spread spectrum radiotelephone having adaptive transmitter gain control
FI96558C (fi) 1994-09-27 1996-07-10 Nokia Telecommunications Oy Menetelmä datasiirtoa varten TDMA-matkaviestinjärjestelmässä sekä menetelmän toteuttava matkaviestinjärjestelmä
US5566201A (en) 1994-09-27 1996-10-15 Nokia Mobile Phones Ltd. Digital AGC for a CDMA radiotelephone
US5621723A (en) * 1994-09-27 1997-04-15 Gte Laboratories Incorporated Power control in a CDMA network
US5758266A (en) 1994-09-30 1998-05-26 Qualcomm Incorporated Multiple frequency communication device
US5710768A (en) * 1994-09-30 1998-01-20 Qualcomm Incorporated Method of searching for a bursty signal
US5724385A (en) 1994-09-30 1998-03-03 Qualcomm Incorporated Serial linked interconnect for summation of multiple waveforms on a common channel
US5528593A (en) 1994-09-30 1996-06-18 Qualcomm Incorporated Method and apparatus for controlling power in a variable rate communication system
US5659573A (en) 1994-10-04 1997-08-19 Motorola, Inc. Method and apparatus for coherent reception in a spread-spectrum receiver
US5619524A (en) 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
US5822359A (en) 1994-10-17 1998-10-13 Motorola, Inc. Coherent random access channel in a spread-spectrum communication system and method
US5873028A (en) 1994-10-24 1999-02-16 Ntt Mobile Communications Network Inc. Transmission power control apparatus and method in a mobile communication system
US5561669A (en) 1994-10-26 1996-10-01 Cisco Systems, Inc. Computer network switching system with expandable number of ports
JP2982856B2 (ja) 1994-10-26 1999-11-29 エヌ・ティ・ティ移動通信網株式会社 送信電力制御法および前記送信電力制御法を用いた通信装置
JPH08122474A (ja) 1994-10-28 1996-05-17 Toshiba Corp 燃料スペーサおよび燃料集合体
US5649292A (en) 1994-10-31 1997-07-15 Airnet Communications Corporation Obtaining improved frequency reuse in wireless communication systems
US5585850A (en) 1994-10-31 1996-12-17 Schwaller; John Adaptive distribution system for transmitting wideband video data over narrowband multichannel wireless communication system
JP2596392B2 (ja) 1994-11-16 1997-04-02 日本電気株式会社 データレート検出器
US5717713A (en) * 1994-11-18 1998-02-10 Stanford Telecommunications, Inc. Technique to permit rapid acquisition and alert channel signalling for base station-to-user link of an orthogonal CDMA (OCDMA) communication system
KR970011690B1 (ko) * 1994-11-22 1997-07-14 삼성전자 주식회사 파일럿트 채널을 이용한 대역확산 통신시스템의 데이타 송신기 및 수신기
US5577022A (en) 1994-11-22 1996-11-19 Qualcomm Incorporated Pilot signal searching technique for a cellular communications system
US5727033A (en) 1994-11-30 1998-03-10 Lucent Technologies Inc. Symbol error based power control for mobile telecommunication system
JPH08163085A (ja) * 1994-12-02 1996-06-21 Toshiba Corp 情報通信装置
JP2655108B2 (ja) 1994-12-12 1997-09-17 日本電気株式会社 Cdma送受信装置
JPH08166480A (ja) 1994-12-14 1996-06-25 Toshiba Corp 燃料集合体
US5654955A (en) 1994-12-15 1997-08-05 Stanford Telecommunications, Inc. Network entry channel for CDMA systems
US5722063A (en) * 1994-12-16 1998-02-24 Qualcomm Incorporated Method and apparatus for increasing receiver immunity to interference
US5602833A (en) * 1994-12-19 1997-02-11 Qualcomm Incorporated Method and apparatus for using Walsh shift keying in a spread spectrum communication system
US5627834A (en) 1994-12-19 1997-05-06 Electronics And Telecommunications Research Institute Code division multiple access (CDMA) automatic call simulator
US5592470A (en) 1994-12-21 1997-01-07 At&T Broadband wireless system and network architecture providing broadband/narrowband service with optimal static and dynamic bandwidth/channel allocation
JP2605648B2 (ja) 1994-12-22 1997-04-30 日本電気株式会社 Ss受信機における逆拡散符号位相検出装置
US6035197A (en) 1994-12-29 2000-03-07 Cellco Partnership Method and system for providing a handoff from a CDMA cellular telephone system
US5559788A (en) 1994-12-29 1996-09-24 Unisys Corporation Multiple channel quadrature communication system and method
US5574747A (en) 1995-01-04 1996-11-12 Interdigital Technology Corporation Spread spectrum adaptive power control system and method
US5691974A (en) 1995-01-04 1997-11-25 Qualcomm Incorporated Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase, time and energy
EP0750408B1 (en) 1995-01-05 2005-06-15 NTT DoCoMo, Inc. Device and method for coherent-tracking of a signal for use in a cdma receiver
US5621416A (en) * 1995-02-02 1997-04-15 Trimble Navigation Limited Optimized processing of signals for enhanced cross-correlation in a satellite positioning system receiver
US5541606A (en) * 1995-02-02 1996-07-30 Trimble Navigation Limited W-code enhanced cross correlation satellite positioning system receiver
US5638361A (en) 1995-02-08 1997-06-10 Stanford Telecommunications, Inc. Frequency hopped return link with net entry channel for a satellite personal communications system
US5623485A (en) 1995-02-21 1997-04-22 Lucent Technologies Inc. Dual mode code division multiple access communication system and method
US5563912A (en) 1995-02-27 1996-10-08 Nec Corporation High efficiency speech coding apparatus and transit switching system employing the same
US5918155A (en) 1995-03-13 1999-06-29 Hitachi, Ltd. Satellite communication system and method thereof
JPH08316897A (ja) * 1995-03-13 1996-11-29 Hitachi Ltd 衛星通信システム及び方法
US5568507A (en) 1995-03-20 1996-10-22 General Electric Company Geometric harmonic modulation (GHM) - analog implementation
US5634195A (en) 1995-03-27 1997-05-27 Telefonaktiebolaget Lm Ericsson System and method for setting of output power parameters in a cellular mobile telecommunication system
US5594718A (en) 1995-03-30 1997-01-14 Qualcomm Incorporated Method and apparatus for providing mobile unit assisted hard handoff from a CDMA communication system to an alternative access communication system
TW347616B (en) 1995-03-31 1998-12-11 Qualcomm Inc Method and apparatus for performing fast power control in a mobile communication system a method and apparatus for controlling transmission power in a mobile communication system is disclosed.
US6137840A (en) 1995-03-31 2000-10-24 Qualcomm Incorporated Method and apparatus for performing fast power control in a mobile communication system
US6977967B1 (en) 1995-03-31 2005-12-20 Qualcomm Incorporated Method and apparatus for performing fast power control in a mobile communication system
JPH08272722A (ja) 1995-04-03 1996-10-18 Nippon Telegr & Teleph Corp <Ntt> 通信サービス管理装置
US5627835A (en) * 1995-04-04 1997-05-06 Oki Telecom Artificial window size interrupt reduction system for CDMA receiver
JPH08288881A (ja) 1995-04-14 1996-11-01 Hitachi Ltd 自動利得制御方式
US5875400A (en) 1995-04-18 1999-02-23 Northern Telecom Limited Cellular mobile communications system
US5757767A (en) 1995-04-18 1998-05-26 Qualcomm Incorporated Method and apparatus for joint transmission of multiple data signals in spread spectrum communication systems
US5732328A (en) 1995-04-25 1998-03-24 Lucent Technologies Inc. Method for power control in wireless networks for communicating multiple information classes
US5896368A (en) 1995-05-01 1999-04-20 Telefonaktiebolaget Lm Ericsson Multi-code compressed mode DS-CDMA systems and methods
US5883899A (en) 1995-05-01 1999-03-16 Telefonaktiebolaget Lm Ericsson Code-rate increased compressed mode DS-CDMA systems and methods
US5781541A (en) 1995-05-03 1998-07-14 Bell Atlantic Network Services, Inc. CDMA system having time-distributed transmission paths for multipath reception
US5689815A (en) 1995-05-04 1997-11-18 Oki Telecom, Inc. Saturation prevention system for radio telephone with open and closed loop power control systems
US5508708A (en) * 1995-05-08 1996-04-16 Motorola, Inc. Method and apparatus for location finding in a CDMA system
JPH08307320A (ja) 1995-05-11 1996-11-22 Oki Electric Ind Co Ltd 無線通信装置
US5673259A (en) * 1995-05-17 1997-09-30 Qualcomm Incorporated Random access communications channel for data services
US5627855A (en) * 1995-05-25 1997-05-06 Golden Bridge Technology, Inc. Programmable two-part matched filter for spread spectrum
JP2661591B2 (ja) 1995-05-26 1997-10-08 日本電気株式会社 移動体通信システムにおける信号伝送方法
GB2301746B (en) 1995-06-02 1999-09-08 Dsc Communications Remote control of wireless telecommunications systems
GB2301747A (en) 1995-06-02 1996-12-11 Dsc Communications Remotely programmable subscriber terminal in a wireless telecommunications system
US6324208B1 (en) 1995-06-02 2001-11-27 Airspan Networks, Inc. Apparatus and method of controlling transmitting power in a subscriber of a wireless telecommunications system
GB2301741A (en) 1995-06-02 1996-12-11 Dsc Communications Establishing a Downlink Communication Path in a Wireless Communications System
US5802046A (en) 1995-06-05 1998-09-01 Omnipoint Corporation Efficient time division duplex communication system with interleaved format and timing adjustment control
US5689502A (en) 1995-06-05 1997-11-18 Omnipoint Corporation Efficient frequency division duplex communication system with interleaved format and timing adjustment control
US5745484A (en) 1995-06-05 1998-04-28 Omnipoint Corporation Efficient communication system using time division multiplexing and timing adjustment control
US5959980A (en) 1995-06-05 1999-09-28 Omnipoint Corporation Timing adjustment control for efficient time division duplex communication
US5592481A (en) 1995-06-06 1997-01-07 Globalstar L.P. Multiple satellite repeater capacity loading with multiple spread spectrum gateway antennas
US5664006A (en) 1995-06-07 1997-09-02 Globalstar L.P. Method for accounting for user terminal connection to a satellite communications system
JP2728034B2 (ja) 1995-06-15 1998-03-18 日本電気株式会社 スペクトラム拡散信号受信装置
US5764687A (en) 1995-06-20 1998-06-09 Qualcomm Incorporated Mobile demodulator architecture for a spread spectrum multiple access communication system
US5784406A (en) 1995-06-29 1998-07-21 Qualcom Incorporated Method and apparatus for objectively characterizing communications link quality
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US6697350B2 (en) * 1995-06-30 2004-02-24 Interdigital Technology Corporation Adaptive vector correlator for spread-spectrum communications
US5953346A (en) 1996-06-27 1999-09-14 Interdigital Technology Corporation CDMA communication system which selectively suppresses data transmissions during establishment of a communication channel
US6788662B2 (en) 1995-06-30 2004-09-07 Interdigital Technology Corporation Method for adaptive reverse power control for spread-spectrum communications
US5940382A (en) 1996-06-27 1999-08-17 Interdigital Technology Corporation Virtual locating of a fixed subscriber unit to reduce re-acquisition time
US6049535A (en) 1996-06-27 2000-04-11 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US5754803A (en) * 1996-06-27 1998-05-19 Interdigital Technology Corporation Parallel packetized intermodule arbitrated high speed control and data bus
US6940840B2 (en) 1995-06-30 2005-09-06 Interdigital Technology Corporation Apparatus for adaptive reverse power control for spread-spectrum communications
JP2718398B2 (ja) 1995-06-30 1998-02-25 日本電気株式会社 Cdma基地局送信装置
USRE38523E1 (en) 1995-06-30 2004-06-01 Interdigital Technology Corporation Spreading code sequence acquisition system and method that allows fast acquisition in code division multiple access (CDMA) systems
DE19523851A1 (de) * 1995-06-30 1997-01-02 Basf Ag Verfahren zur Herstellung von Mischungen aus Diphenylmethan-diisocyanaten und Polyphenyl-polymethylen-polyisocyanaten mit einer verminderten Iodfarbzahl und einem reduzierten Chlorgehalt
US7072380B2 (en) 1995-06-30 2006-07-04 Interdigital Technology Corporation Apparatus for initial power control for spread-spectrum communications
US7929498B2 (en) 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
US5629934A (en) 1995-06-30 1997-05-13 Motorola, Inc. Power control for CDMA communication systems
US6801516B1 (en) 1995-06-30 2004-10-05 Interdigital Technology Corporation Spread-spectrum system for assigning information signals having different data rates
US7123600B2 (en) 1995-06-30 2006-10-17 Interdigital Technology Corporation Initial power control for spread-spectrum communications
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6487190B1 (en) 1996-06-27 2002-11-26 Interdigital Technology Corporation Efficient multichannel filtering for CDMA modems
US5841768A (en) 1996-06-27 1998-11-24 Interdigital Technology Corporation Method of controlling initial power ramp-up in CDMA systems by using short codes
US6816473B2 (en) 1995-06-30 2004-11-09 Interdigital Technology Corporation Method for adaptive forward power control for spread-spectrum communications
US7020111B2 (en) 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
JP3483991B2 (ja) 1995-07-27 2004-01-06 沖電気工業株式会社 符号分割多重アクセス通信用拡散符号発生器、符号分割多重アクセス通信システム及び符号分割多重アクセス通信用拡散符号発生方法
JPH0946174A (ja) 1995-07-31 1997-02-14 Sharp Corp フィルタ回路
FI98674C (fi) 1995-08-18 1997-07-25 Nokia Mobile Phones Ltd Menetelmä lähetystehon säätämiseksi yhteydenmuodostuksen aikana sekä solukkoradiojärjestelmä
US6356555B1 (en) * 1995-08-25 2002-03-12 Terayon Communications Systems, Inc. Apparatus and method for digital data transmission using orthogonal codes
US5978413A (en) 1995-08-28 1999-11-02 Bender; Paul E. Method and system for processing a plurality of multiple access transmissions
US6108364A (en) 1995-08-31 2000-08-22 Qualcomm Incorporated Time division duplex repeater for use in a CDMA system
JP2762965B2 (ja) * 1995-09-04 1998-06-11 日本電気株式会社 基地局送信電力制御方式
US5715526A (en) 1995-09-08 1998-02-03 Qualcomm Incorporated Apparatus and method for controlling transmission power in a cellular communications system
US5710758A (en) * 1995-09-29 1998-01-20 Qualcomm Incorporated Wireless network planning tool
US5719898A (en) 1995-09-29 1998-02-17 Golden Bridge Technology, Inc. Fuzzy-logic spread-spectrum adaptive power control
US5872810A (en) 1996-01-26 1999-02-16 Imec Co. Programmable modem apparatus for transmitting and receiving digital data, design method and use method for said modem
US5734646A (en) 1995-10-05 1998-03-31 Lucent Technologies Inc. Code division multiple access system providing load and interference based demand assignment service to users
US5903552A (en) 1995-10-18 1999-05-11 Telefonaktiebolaget Lm Ericsson Discriminating between channels in wireless communication systems
US6035369A (en) * 1995-10-19 2000-03-07 Rambus Inc. Method and apparatus for providing a memory with write enable information
US6212566B1 (en) 1996-01-26 2001-04-03 Imec Interprocess communication protocol system modem
JP2723094B2 (ja) * 1995-11-07 1998-03-09 日本電気株式会社 Cdma受信装置
US5930706A (en) 1995-11-29 1999-07-27 Ericsson Inc. Detecting messages transmitted over a communications channel such as a paging channel
KR100399014B1 (ko) * 1995-12-26 2004-02-11 삼성탈레스 주식회사 이동무선시스템에서자동전력제어방법
JP3274337B2 (ja) * 1995-12-27 2002-04-15 株式会社東芝 Cdmaセルラ無線システム
US5822310A (en) 1995-12-27 1998-10-13 Ericsson Inc. High power short message service using broadcast control channel
KR100212053B1 (ko) * 1995-12-30 1999-08-02 윤종용 기지국 송출전력 자동 제어 장치 및 방법
US6575368B1 (en) 1996-01-31 2003-06-10 Psc Scanning, Inc. Multiple aperture data reader for multi-mode operation
US5828947A (en) 1996-02-13 1998-10-27 Alcatel Espace Method of power regulation in a satellite telecommunication network with at least two satellites in view
US5722051A (en) * 1996-02-13 1998-02-24 Lucent Technologies Inc. Adaptive power control and coding scheme for mobile radio systems
US5724236A (en) 1996-03-05 1998-03-03 Motorola, Inc. Power converter transformer having an auxilliary winding and electrostatic shield to suppress noise
US5884187A (en) * 1996-03-13 1999-03-16 Ziv; Noam A. Method and apparatus for providing centralized power control administration for a set of base stations
US5751763A (en) 1996-03-15 1998-05-12 Motorola, Inc. Method and apparatus for power control in a communication system
US5745520A (en) 1996-03-15 1998-04-28 Motorola, Inc. Method and apparatus for power control in a spread spectrum communication system using threshold step-down size adjustment
US5809020A (en) 1996-03-18 1998-09-15 Motorola, Inc. Method for adaptively adjusting weighting coefficients in a cDMA radio receiver
US5721757A (en) * 1996-03-20 1998-02-24 Lucent Technologies Inc. Automatic gain control loop
US5737327A (en) 1996-03-29 1998-04-07 Motorola, Inc. Method and apparatus for demodulation and power control bit detection in a spread spectrum communication system
US5805994A (en) 1996-04-03 1998-09-08 Motorola, Inc. Method for transmit power control in a communication system
US5745480A (en) 1996-04-03 1998-04-28 Adicom Wireless, Inc. Multi-rate wireless communications system
US5842113A (en) 1996-04-10 1998-11-24 Lucent Technologies Inc. Method and apparatus for controlling power in a forward link of a CDMA telecommunications system
US5924015A (en) 1996-04-30 1999-07-13 Trw Inc Power control method and apparatus for satellite based telecommunications system
JP3352593B2 (ja) * 1996-05-22 2002-12-03 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムおよび移動通信システムにおけるソフトハンドオーバ中送信電力制御方法
US6396804B2 (en) 1996-05-28 2002-05-28 Qualcomm Incorporated High data rate CDMA wireless communication system
US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
US5926500A (en) 1996-05-28 1999-07-20 Qualcomm Incorporated Reduced peak-to-average transmit power high data rate CDMA wireless communication system
US5930230A (en) 1996-05-28 1999-07-27 Qualcomm Incorporated High data rate CDMA wireless communication system
JP2785804B2 (ja) 1996-05-30 1998-08-13 日本電気株式会社 移動通信システム
US5909434A (en) 1996-05-31 1999-06-01 Qualcomm Incorporated Bright and burst mode signaling data transmission in an adjustable rate wireless communication system
US5884196A (en) * 1996-06-06 1999-03-16 Qualcomm Incorporated Method and apparatus of preserving power of a remote unit in a dispatch system
US5881368A (en) 1996-06-06 1999-03-09 Qualcomm Incorporated Method and apparatus of power control in a CDMA dispatch system
US5828662A (en) 1996-06-19 1998-10-27 Northern Telecom Limited Medium access control scheme for data transmission on code division multiple access (CDMA) wireless systems
US5771461A (en) 1996-06-28 1998-06-23 Motorola, Inc. Method and apparatus for power control of a first channel based on a signal quality of a second channel
US5737326A (en) 1996-07-12 1998-04-07 Lucent Technologies Inc. Multi-code code division multiple access receiver
US5966403A (en) * 1996-07-19 1999-10-12 Trimble Navigation Limited Code multipath error estimation using weighted correlations
JP2800797B2 (ja) 1996-08-12 1998-09-21 日本電気株式会社 スペクトル拡散通信方式
US5884198A (en) * 1996-08-16 1999-03-16 Ericsson, Inc. Body conformal portable radio and method of constructing the same
US5870378A (en) * 1996-08-20 1999-02-09 Lucent Technologies Inc. Method and apparatus of a multi-code code division multiple access receiver having a shared accumulator circuits
US5881056A (en) * 1996-08-20 1999-03-09 Lucent Technologies Inc. Method and apparatus of a multi-code code division multiple access receiver having shared accumulator circuits
JPH1066156A (ja) 1996-08-23 1998-03-06 Matsushita Electric Ind Co Ltd モード対応型電話機
US5784366A (en) 1996-08-27 1998-07-21 Transsky Corp. Wideband code-division-multiple access system and method
JPH1079701A (ja) * 1996-09-03 1998-03-24 Fujitsu Ltd 移動通信端末及びその送信電力制御方式
US5893035A (en) 1996-09-16 1999-04-06 Qualcomm Incorporated Centralized forward link power control
CA2185847A1 (en) * 1996-09-18 1998-03-19 Jean-Paul Chaib Method and apparatus for encoding and decoding digital signals
US6463295B1 (en) 1996-10-11 2002-10-08 Arraycomm, Inc. Power control with signal quality estimation for smart antenna communication systems
US5926501A (en) * 1996-12-12 1999-07-20 Motorola, Inc. Method and apparatus for dynamic channel configuration
GB2320648A (en) * 1996-12-20 1998-06-24 Dsc Telecom Lp Controlling interference in a cell of a wireless telecommunications system
US5715536A (en) * 1996-12-26 1998-02-10 Banks; David L. Static electricity dissipation garment
JP3421210B2 (ja) 1997-01-16 2003-06-30 株式会社エヌ・ティ・ティ・ドコモ Cdma移動通信システムにおける信号伝送方法及び信号送信装置
US5933781A (en) 1997-01-31 1999-08-03 Qualcomm Incorporated Pilot based, reversed channel power control
US5883889A (en) 1997-02-06 1999-03-16 Northern Telecom Limited Directional pseudonoise offset assignment in a CDMA cellular radiotelephone system
US6347083B1 (en) * 1997-02-24 2002-02-12 Oki Electric Industry Co., Ltd. Transmission power control apparatus for a CDMA system
US6240083B1 (en) 1997-02-25 2001-05-29 Telefonaktiebolaget L.M. Ericsson Multiple access communication network with combined contention and reservation mode access
US6078568A (en) 1997-02-25 2000-06-20 Telefonaktiebolaget Lm Ericsson Multiple access communication network with dynamic access control
JP3294525B2 (ja) 1997-03-11 2002-06-24 株式会社日立テレコムテクノロジー 動的帯域割付方式
US6396867B1 (en) 1997-04-25 2002-05-28 Qualcomm Incorporated Method and apparatus for forward link power control
US6173162B1 (en) 1997-06-16 2001-01-09 Telefonaktiebolaget Lm Ericsson (Publ) Multiple code channel power control in a radio communication system
US6137789A (en) * 1997-06-26 2000-10-24 Nokia Mobile Phones Limited Mobile station employing selective discontinuous transmission for high speed data services in CDMA multi-channel reverse link configuration
JP3499719B2 (ja) 1997-06-30 2004-02-23 株式会社東芝 分離アクセス方式による監視システム
US6590889B1 (en) 1997-08-11 2003-07-08 Gte Internetworking Incorporated Data communications system and hybrid time-code multiplexing method
US20020051434A1 (en) 1997-10-23 2002-05-02 Ozluturk Fatih M. Method for using rapid acquisition spreading codes for spread-spectrum communications
KR100369602B1 (ko) * 1997-11-03 2003-04-11 삼성전자 주식회사 부호분할다중접속방식이동통신시스템의전력제어비트삽입방법
US7184426B2 (en) 2002-12-12 2007-02-27 Qualcomm, Incorporated Method and apparatus for burst pilot for a time division multiplex system
US6708041B1 (en) * 1997-12-15 2004-03-16 Telefonaktiebolaget Lm (Publ) Base station transmit power control in a CDMA cellular telephone system
AU2452399A (en) * 1998-01-07 1999-07-26 George B. Diamond Resealable easy open closure and can
US6038577A (en) * 1998-01-09 2000-03-14 Dspc Israel Ltd. Efficient way to produce a delayed version of a maximum length sequence using a division circuit
US7430257B1 (en) 1998-02-12 2008-09-30 Lot 41 Acquisition Foundation, Llc Multicarrier sub-layer for direct sequence channel and multiple-access coding
EP0983646B1 (en) 1998-02-14 2003-06-04 Samsung Electronics Co., Ltd. Data communication device and method for mobile communication system with dedicated control channel
US6212399B1 (en) 1998-03-06 2001-04-03 Lucent Technologies, Inc. Method and apparatus for controlling the power radiated by a wireless terminal in a telecommunications system based on a variable step size
US6292519B1 (en) 1998-03-11 2001-09-18 Telefonaktiebolaget Lm Ericsson (Publ) Correction of signal-to-interference ratio measurements
KR100321979B1 (ko) 1998-03-26 2002-02-04 윤종용 부호분할다중접속 통신시스템의 직교부호확산 채널과 준직교부호확산 채널의 전력제어장치 및 방법
US6434124B1 (en) 1998-03-31 2002-08-13 Lucent Technologies Inc. Adaptive symbol error count based technique for CDMA reverse link outer loop power control
KR100338662B1 (ko) 1998-03-31 2002-07-18 윤종용 부호분할다중접속통신시스템의채널통신장치및방법
JP3429674B2 (ja) * 1998-04-28 2003-07-22 沖電気工業株式会社 多重通信システム
US6085237A (en) 1998-05-01 2000-07-04 Cisco Technology, Inc. User-friendly interface for setting expressions on an SNMP agent
JP3286247B2 (ja) 1998-05-08 2002-05-27 松下電器産業株式会社 無線通信システム
JP2000022170A (ja) 1998-06-29 2000-01-21 Murata Mfg Co Ltd 電子部品およびその製造方法
US6463089B1 (en) 1998-08-19 2002-10-08 Interair Wireless, Inc. Hybrid spread spectrum method and system for wirelessly transmitting and receiving wideband digital data
KR100339034B1 (ko) 1998-08-25 2002-10-11 삼성전자 주식회사 부호분할다중접속통신시스템의제어유지상태에서역방향폐루프전력제어장치및방법
US6396817B2 (en) 1998-08-31 2002-05-28 Qualcomm Incorporated Signal splitting method for limiting peak power in a CDMA system
SG84514A1 (en) 1998-08-31 2001-11-20 Oki Techno Ct Singapore Pte Receiving device and channel estimator for use in a cdma communication system
US6847821B1 (en) * 1998-09-14 2005-01-25 Nortel Networks Limited Method and system in a wireless communications network for the simultaneous transmission of both voice and non-voice data over a single radio frequency channel
FI106897B (fi) 1998-09-14 2001-04-30 Nokia Networks Oy RAKE-vastaanotin
US6289040B1 (en) * 1998-09-16 2001-09-11 Infineon Technologies Development Center Tel Aviv Ltd. Hierarchical delay lock loop code tracking system
KR100290676B1 (ko) 1998-09-21 2001-07-12 윤종용 광대역코드분할다중접속시스템을위한변조신호발생장치
EP0993128A1 (en) 1998-10-05 2000-04-12 Motorola, Inc. Power control in communications systems
US6141374A (en) 1998-10-14 2000-10-31 Lucent Technologies Inc. Method and apparatus for generating multiple matched-filter PN vectors in a CDMA demodulator
ES2219069T3 (es) 1998-10-27 2004-11-16 Siemens Aktiengesellschaft Un sistema para extraccion mejorada en sistemas cdma.
KR100274550B1 (ko) 1998-10-29 2000-12-15 윤종용 고속 이더넷의 충돌 방지 장치 및 그 방법
US6088399A (en) 1998-11-24 2000-07-11 Motorola, Inc. Multi-mode transmitter and receiver
US6512925B1 (en) 1998-12-03 2003-01-28 Qualcomm, Incorporated Method and apparatus for controlling transmission power while in soft handoff
KR100315670B1 (ko) 1998-12-07 2001-11-29 윤종용 부호분할다중접속 통신시스템의 단속 송신장치 및 방법
US6625200B1 (en) * 1999-01-25 2003-09-23 Ericsson Inc. Multi-stage CDMA synchronization with parallel execution
US6766143B1 (en) 1999-01-25 2004-07-20 Robert W. Beckwith Expanded capabilities for wireless two-way packet communications for intelligent electronic devices (IEDs)
US6788685B1 (en) * 1999-01-28 2004-09-07 Qualcomm, Incorporated Method and apparatus for controlling transmission power in a CDMA communication system
KR100651457B1 (ko) 1999-02-13 2006-11-28 삼성전자주식회사 부호분할다중접속 이동통신시스템의 불연속 전송모드에서 연속적인 외부순환 전력제어장치 및 방법
US6351486B1 (en) * 1999-05-25 2002-02-26 Conexant Systems, Inc. Accelerated selection of a base station in a wireless communication system
US6397070B1 (en) 1999-07-21 2002-05-28 Qualcomm Incorporated Method and apparatus for estimating reverse link loading in a wireless communication system
SE516225C2 (sv) 1999-09-17 2001-12-03 Ericsson Telefon Ab L M Ett förfarande för effektkontroll och ett radiosystem
US6587447B1 (en) 1999-09-29 2003-07-01 Nortel Networks Limited Method and system for performing outer loop power control in discontinuous transmission mode
US6563810B1 (en) 1999-09-30 2003-05-13 Qualcomm Incorporated Closed loop resource allocation
US6519461B1 (en) * 1999-10-29 2003-02-11 Telefonaktiebolaget Lm Ericsson (Publ) Channel-type switching from a common channel to a dedicated channel based on common channel load
US6549565B1 (en) * 1999-12-07 2003-04-15 Lucent Technologies Inc. Code division multiple access system and method of operation with improved signal acquisition and processing
JP2001166841A (ja) 1999-12-13 2001-06-22 Delta Kogyo Co Ltd 操作レバー
MXPA02007068A (es) 2000-01-20 2004-02-26 Nortel Networks Ltd Estructura de marco adaptable para un sistema hibrido cdma/tdma.
US6907020B2 (en) 2000-01-20 2005-06-14 Nortel Networks Limited Frame structures supporting voice or streaming communications with high speed data communications in wireless access networks
JP2001320326A (ja) 2000-03-03 2001-11-16 Sony Corp 通信システム、通信方法及び通信装置
US6396897B1 (en) 2000-04-18 2002-05-28 Ge Medical Systems Global Technology Company, Llc Method and apparatus for selecting retrospective reconstruction parameters
US6853675B1 (en) * 2000-08-10 2005-02-08 Umbrella Capital, Llc Methods and systems for optimizing signal transmission power levels in a spread spectrum communication system
CA2394957C (en) 2000-10-20 2006-08-01 Samsung Electronics Co., Ltd. Apparatus and method for determining a data rate of packet data in a mobile communication system
ES2281049T3 (es) 2000-10-24 2007-09-16 Nortel Networks Limited Metodos, sistemas y estructura de canal compartido.
JP4110734B2 (ja) * 2000-11-27 2008-07-02 沖電気工業株式会社 音声パケット通信の品質制御装置
US6850499B2 (en) 2001-01-05 2005-02-01 Qualcomm Incorporated Method and apparatus for forward power control in a communication system
US6975672B2 (en) 2001-01-08 2005-12-13 Ericsson Inc. Apparatus and methods for intersymbol interference compensation in spread spectrum communications
US6977915B2 (en) * 2001-01-30 2005-12-20 Nortel Networks Limited Method and system for controlling device transmit power in a wireless communication network
GB2371947B (en) 2001-02-01 2005-02-23 Fujitsu Ltd Communications systems
JP3543959B2 (ja) 2001-02-16 2004-07-21 日本電気株式会社 基地局
US6763244B2 (en) 2001-03-15 2004-07-13 Qualcomm Incorporated Method and apparatus for adjusting power control setpoint in a wireless communication system
US6973579B2 (en) 2002-05-07 2005-12-06 Interdigital Technology Corporation Generation of user equipment identification specific scrambling code for the high speed shared control channel
US6760321B2 (en) 2002-10-21 2004-07-06 Sandbridge Technologies, Inc. Method and apparatus for block-based chip timing estimation in a code division multiple access communication system
US7286484B2 (en) 2003-01-10 2007-10-23 Chunghwa Telecom Co., Ltd. Q-learning-based multi-rate transmission control (MRTC) scheme for RRC in WCDMA systems
US7403508B1 (en) 2003-09-22 2008-07-22 Miao George J Multiband MIMO-based W-CDMA and UWB communications
US7656931B2 (en) * 2003-12-31 2010-02-02 Ut-Battelle, Llc Hybrid spread spectrum radio system
WO2007123766A2 (en) 2006-03-31 2007-11-01 The Regents Of The University Of California Spread-spectrum receiver and reception method
US7583225B2 (en) 2006-05-18 2009-09-01 The Boeing Company Low earth orbit satellite data uplink
JP2009536395A (ja) 2006-06-19 2009-10-08 サムスン エレクトロニクス カンパニー リミテッド Otaが可能な端末の情報アップグレードシステム及び方法{informationupgradesystemandmethodforota−capabledevice}
TWM305922U (en) * 2006-07-26 2007-02-01 Universal Scient Ind Co Ltd Push and eject device of swap module
US20080304552A1 (en) 2007-06-05 2008-12-11 Chandrashekhar Thejaswi Pataguppe Receiver for communication system
JP2009176815A (ja) 2008-01-22 2009-08-06 Olympus Corp 実装構造体
WO2009156799A1 (en) 2008-06-27 2009-12-30 Nokia Corporation Methods, apparatuses, and computer program products for memory management in devices using software defined radios
FR2934107B1 (fr) * 2008-07-17 2010-08-27 Alcatel Lucent Methode de gestion d'un reseau de telecommunication et equipements associes
JP5227124B2 (ja) 2008-09-22 2013-07-03 小島プレス工業株式会社 接点装置
US9619246B2 (en) 2010-03-30 2017-04-11 Hon Hai Precision Industry Co., Ltd. Electronic computing device and reboot method thereof

Also Published As

Publication number Publication date
ATE508536T1 (de) 2011-05-15
CA2376319A1 (en) 1997-01-23
US20110158202A1 (en) 2011-06-30
EP0835568B1 (en) 2001-11-28
EP2285170A2 (en) 2011-02-16
DE69635315T2 (de) 2006-07-13
DK0836770T3 (da) 2003-02-10
EP0984577A3 (en) 2003-04-09
US5799010A (en) 1998-08-25
US6272168B1 (en) 2001-08-07
EP2273689B1 (en) 2012-10-24
US6215778B1 (en) 2001-04-10
FI974554A0 (fi) 1997-12-18
AR033339A2 (es) 2003-12-17
CA2224706A1 (en) 1997-01-23
DE69638368D1 (de) 2011-06-16
FI125331B (fi) 2015-08-31
HK1041376B (zh) 2006-06-02
US6456608B1 (en) 2002-09-24
US6633600B2 (en) 2003-10-14
MY134704A (en) 2007-12-31
JP5801428B2 (ja) 2015-10-28
EP1213854A2 (en) 2002-06-12
FI121206B (fi) 2010-08-13
ES2147547T1 (es) 2000-09-16
US6744809B2 (en) 2004-06-01
DE69634098T2 (de) 2005-06-02
HK1045614B (zh) 2011-12-23
US5912919A (en) 1999-06-15
AR033494A2 (es) 2003-12-26
DE69634346D1 (de) 2005-03-17
ES2234939T3 (es) 2005-07-01
FI125333B (fi) 2015-08-31
AP9600832A0 (en) 1996-07-31
ATE303680T1 (de) 2005-09-15
EP2285169A3 (en) 2012-05-30
JP5123415B2 (ja) 2013-01-23
EP2273689A3 (en) 2011-03-30
JP5529988B2 (ja) 2014-06-25
FI974552A0 (fi) 1997-12-18
JP4756083B2 (ja) 2011-08-24
JP3640952B2 (ja) 2005-04-20
FI20040925A (fi) 2004-07-02
KR100687596B1 (ko) 2007-03-02
HK1026532A1 (en) 2000-12-15
JP2003244028A (ja) 2003-08-29
JP2009268135A (ja) 2009-11-12
ATE289714T1 (de) 2005-03-15
FI974552A (fi) 1998-02-26
FI20145507A (fi) 2014-06-03
WO1997002714A2 (en) 1997-01-23
JPH11509058A (ja) 1999-08-03
CN1790932B (zh) 2012-11-14
US20040071198A1 (en) 2004-04-15
JP2003224492A (ja) 2003-08-08
HK1026537A1 (en) 2000-12-15
JP2013051739A (ja) 2013-03-14
CN1790932A (zh) 2006-06-21
CA2378885C (en) 2005-09-27
HK1049414A1 (en) 2003-05-09
EP0986188A3 (en) 2003-04-23
DE835593T1 (de) 2000-05-04
NO318270B1 (no) 2005-02-28
FI20040917A (fi) 2004-07-01
HK1015983A1 (en) 1999-10-22
ES2398375T3 (es) 2013-03-15
HK1041375B (zh) 2005-04-22
CA2645140A1 (en) 1997-01-23
US5796776A (en) 1998-08-18
DK1213854T3 (da) 2005-10-17
NO20041820L (no) 1998-02-18
ATE275780T1 (de) 2004-09-15
CA2848679A1 (en) 1997-01-23
EP1933470A3 (en) 2012-11-07
KR100454188B1 (ko) 2005-01-24
EP0986188B1 (en) 2005-02-09
US6721301B2 (en) 2004-04-13
DE1213845T1 (de) 2002-11-28
ES2366343T3 (es) 2011-10-19
HK1045770B (zh) 2005-09-09
JP4474476B2 (ja) 2010-06-02
ES2146569T1 (es) 2000-08-16
EP0836770B1 (en) 2002-10-09
EP0835568A2 (en) 1998-04-15
EP1933470A2 (en) 2008-06-18
ES2146567T1 (es) 2000-08-16
EP0996239A2 (en) 2000-04-26
HK1149652A1 (en) 2011-10-07
ES2201948T1 (es) 2004-04-01
ATE289715T1 (de) 2005-03-15
JP3706108B2 (ja) 2005-10-12
FI115810B (fi) 2005-07-15
EP0986186B1 (en) 2005-08-31
JP2008011558A (ja) 2008-01-17
AR033493A2 (es) 2003-12-26
JP2011166841A (ja) 2011-08-25
HK1026533A1 (en) 2000-12-15
CN1905388B (zh) 2015-07-15
EP0986186A3 (en) 2003-05-02
JP2003224494A (ja) 2003-08-08
CN1192304A (zh) 1998-09-02
JP2012110029A (ja) 2012-06-07
DE69634098D1 (de) 2005-01-27
DE69634389D1 (de) 2005-03-31
EP2259634A2 (en) 2010-12-08
AP681A (en) 1998-09-14
EP1158702A3 (en) 2003-01-22
NO20052097L (no) 1998-02-18
NO976095L (no) 1998-02-18
FI20105117A (fi) 2010-02-05
JP4309381B2 (ja) 2009-08-05
JP5118175B2 (ja) 2013-01-16
EP1213854A3 (en) 2003-06-18
US6229843B1 (en) 2001-05-08
JP2009225484A (ja) 2009-10-01
DE69634275D1 (de) 2005-03-03
DE986187T1 (de) 2000-11-09
PT836770E (pt) 2003-02-28
SA06270486B1 (ar) 2011-06-22
JP4130925B2 (ja) 2008-08-13
ES2146570T3 (es) 2005-07-16
ES2201948T3 (es) 2006-03-16
US20040165654A1 (en) 2004-08-26
US20100272155A1 (en) 2010-10-28
AU6401596A (en) 1997-02-05
US6707805B2 (en) 2004-03-16
DE69635140D1 (de) 2005-10-06
US9564963B2 (en) 2017-02-07
EP0991205A3 (en) 2000-06-07
JP5415851B2 (ja) 2014-02-12
ATE289134T1 (de) 2005-02-15
AR033491A2 (es) 2003-12-26
KR100625757B1 (ko) 2006-09-20
JP4511796B2 (ja) 2010-07-28
DK2164184T3 (da) 2013-11-25
US20020118722A1 (en) 2002-08-29
US7502406B2 (en) 2009-03-10
JP3707735B2 (ja) 2005-10-19
JP5276187B2 (ja) 2013-08-28
KR20060022732A (ko) 2006-03-10
JP2004104820A (ja) 2004-04-02
HK1026534A1 (en) 2000-12-15
HK1045614A1 (en) 2002-11-29
JP2003249875A (ja) 2003-09-05
HK1041375A1 (en) 2002-07-05
MY137703A (en) 2009-02-27
DE69633351T2 (de) 2005-09-15
EP2259450A3 (en) 2012-11-07
AU6401396A (en) 1997-02-05
ES2225353T3 (es) 2005-03-16
ID26190A (id) 1997-03-13
DK0835568T3 (da) 2002-03-18
EP1603248A2 (en) 2005-12-07
JP3493374B2 (ja) 2004-02-03
EP0836770A2 (en) 1998-04-22
ATE306751T1 (de) 2005-10-15
JP5438069B2 (ja) 2014-03-12
EP1213846A2 (en) 2002-06-12
US6873645B2 (en) 2005-03-29
JP2003249912A (ja) 2003-09-05
US20020118729A1 (en) 2002-08-29
EP2259450A2 (en) 2010-12-08
DE69624242D1 (de) 2002-11-14
EP0986188A2 (en) 2000-03-15
DK0986188T3 (da) 2005-06-06
US6212174B1 (en) 2001-04-03
ATE307426T1 (de) 2005-11-15
KR20050053646A (ko) 2005-06-08
JP2015043604A (ja) 2015-03-05
JP2006014348A (ja) 2006-01-12
DE986186T1 (de) 2000-11-09
DK0986187T3 (da) 2005-05-30
JP4751945B2 (ja) 2011-08-17
EP0986187B1 (en) 2005-01-26
JP2000501248A (ja) 2000-02-02
FI974553A (fi) 1998-02-10
JP2006314142A (ja) 2006-11-16
JP2011103689A (ja) 2011-05-26
JP4308211B2 (ja) 2009-08-05
MY127923A (en) 2006-12-29
ATE288152T1 (de) 2005-02-15
EP1213846A3 (en) 2003-06-18
US6674788B2 (en) 2004-01-06
JP2009247022A (ja) 2009-10-22
FI122549B (fi) 2012-03-15
KR100582482B1 (ko) 2006-05-23
DE02005245T1 (de) 2004-04-15
EP0986186A2 (en) 2000-03-15
ES2147548T1 (es) 2000-09-16
JP2006314143A (ja) 2006-11-16
US5991329A (en) 1999-11-23
ES2234940T3 (es) 2005-07-01
EP1213854B1 (en) 2005-02-23
JP2009268134A (ja) 2009-11-12
CN1909387A (zh) 2007-02-07
DE69635287D1 (de) 2006-02-23
JP2003249876A (ja) 2003-09-05
EP0991205A2 (en) 2000-04-05
WO1997002675A3 (en) 1997-04-03
ES2184878T3 (es) 2003-04-16
US20100002752A1 (en) 2010-01-07
CA2224706C (en) 2002-10-01
JP5438062B2 (ja) 2014-03-12
EP1213845A2 (en) 2002-06-12
AP9801214A0 (en) 1998-03-31
DE69617429T2 (de) 2002-08-08
MY126175A (en) 2006-09-29
KR20040037264A (ko) 2004-05-04
US20020044539A1 (en) 2002-04-18
EP1156593A2 (en) 2001-11-21
FI20070600A (fi) 2007-08-09
EP1213845B1 (en) 2011-05-04
CN1905388A (zh) 2007-01-31
EP2273689A2 (en) 2011-01-12
KR100383225B1 (ko) 2003-05-16
EP1213846B9 (en) 2005-10-26
DE1156593T1 (de) 2002-10-02
US20020061050A1 (en) 2002-05-23
KR20050120819A (ko) 2005-12-23
DE69624242T2 (de) 2003-06-26
JP3717123B2 (ja) 2005-11-16
AR034093A2 (es) 2004-02-04
DK2273689T3 (da) 2013-02-11
FI20145563A (fi) 2014-06-13
JP4603618B2 (ja) 2010-12-22
ES2167584T3 (es) 2002-05-16
ATE216826T1 (de) 2002-05-15
DE69617429D1 (en) 2002-01-10
EP0835593B1 (en) 2002-04-24
FI974553A0 (fi) 1997-12-18
CA2376313A1 (en) 1997-01-23
EP1156593B1 (en) 2005-10-19
DE69634346T2 (de) 2005-12-29
EP1158702B1 (en) 2004-09-08
DK0986186T3 (da) 2006-01-09
JP2006005957A (ja) 2006-01-05
EP1615350A3 (en) 2007-01-03
US7593453B2 (en) 2009-09-22
JP2003274458A (ja) 2003-09-26
HK1045770A1 (en) 2002-12-06
JP5751471B2 (ja) 2015-07-22
ZA965340B (en) 1997-01-27
WO1997002665A2 (en) 1997-01-23
DE69620884T2 (de) 2002-11-07
AR033950A2 (es) 2004-01-21
CA2378885A1 (en) 1997-01-23
HK1041376A1 (en) 2002-07-05
JP3837116B2 (ja) 2006-10-25
ATE209834T1 (de) 2001-12-15
EP0996239A3 (en) 2003-03-05
US7756190B2 (en) 2010-07-13
NO976095D0 (no) 1997-12-29
EP0986187A2 (en) 2000-03-15
TW318983B (zh) 1997-11-01
EP2285170A3 (en) 2012-05-30
DE996239T1 (de) 2000-11-09
DK1237293T3 (da) 2006-02-06
DE986188T1 (de) 2000-11-09
JP2009027716A (ja) 2009-02-05
ES2173053T1 (es) 2002-10-16
US20090103508A1 (en) 2009-04-23
DE991205T1 (de) 2000-11-09
DE69634390T2 (de) 2006-03-23
JP2016026443A (ja) 2016-02-12
JP2006217591A (ja) 2006-08-17
ES2146570T1 (es) 2000-08-16
US20030193914A1 (en) 2003-10-16
DE69620884D1 (de) 2002-05-29
FI20145509A (fi) 2014-06-03
JP2003264481A (ja) 2003-09-19
EP1156593A3 (en) 2003-06-18
CA2376321C (en) 2006-01-24
ATE285640T1 (de) 2005-01-15
EP1237293A3 (en) 2003-07-02
US20020106007A1 (en) 2002-08-08
JP3707785B2 (ja) 2005-10-19
DE69635315D1 (de) 2005-11-24
JP2013132072A (ja) 2013-07-04
EP1237293B1 (en) 2005-10-12
EP1603248A3 (en) 2005-12-14
AR033949A2 (es) 2004-01-21
JP5837667B2 (ja) 2015-12-24
US20050243897A1 (en) 2005-11-03
JP3478342B2 (ja) 2003-12-15
EP1213845A3 (en) 2004-12-15
CN1095257C (zh) 2002-11-27
ES2146568T1 (es) 2000-08-16
US6985467B2 (en) 2006-01-10
ID25596A (id) 1997-03-13
DE69634389T2 (de) 2006-04-06
JP5876456B2 (ja) 2016-03-02
US6983009B2 (en) 2006-01-03
PT2273689E (pt) 2013-01-31
NO319231B1 (no) 2005-07-04
JP4406631B2 (ja) 2010-02-03
DK1213846T3 (da) 2005-06-20
FI20080001A (fi) 2008-01-02
US20140348135A1 (en) 2014-11-27
WO1997002665A3 (en) 1997-02-20
JP2009260999A (ja) 2009-11-05
US20020051482A1 (en) 2002-05-02
CA2378873A1 (en) 1997-01-23
DE69635140T2 (de) 2006-07-13
EP2285169A2 (en) 2011-02-16
US8737363B2 (en) 2014-05-27
CA2378873C (en) 2005-05-24
ID25599A (id) 1997-03-13
CN1905387A (zh) 2007-01-31
EP1158702A2 (en) 2001-11-28
KR100632845B1 (ko) 2006-10-16
JP2008005539A (ja) 2008-01-10
DE69633351D1 (de) 2004-10-14
HK1049414B (zh) 2006-07-14
US6674791B2 (en) 2004-01-06
CA2376313C (en) 2008-12-30
ES2146569T3 (es) 2005-07-16
HK1045771B (zh) 2005-09-09
AR033492A2 (es) 2003-12-26
JP2014131299A (ja) 2014-07-10
DE1213854T1 (de) 2002-11-28
JP3704521B2 (ja) 2005-10-12
EP2164184A1 (en) 2010-03-17
FI118315B (fi) 2007-09-28
DK0984577T3 (da) 2005-03-14
ID25597A (id) 1997-03-13
ID26100A (id) 2000-09-13
JP3712709B2 (ja) 2005-11-02
CA2365087A1 (en) 1997-01-23
CA2376319C (en) 2009-02-10
DE69634390D1 (de) 2005-03-31
EP1237293A2 (en) 2002-09-04
JP2000510655A (ja) 2000-08-15
DK1158702T3 (da) 2005-01-10
CA2365087C (en) 2008-09-23
DE984577T1 (de) 2000-11-09
EP0986187A3 (en) 2003-05-02
CA2376321A1 (en) 1997-01-23
FI974554A (fi) 1998-03-02
JP2008005529A (ja) 2008-01-10
ES2144384T1 (es) 2000-06-16
ID26158A (id) 2000-11-30
ID25601A (id) 1997-03-13
US20010015998A1 (en) 2001-08-23
AR034092A2 (es) 2004-02-04
FI20125079A (fi) 2012-01-26
CN1492609A (zh) 2004-04-28
US20010030973A1 (en) 2001-10-18
US5991332A (en) 1999-11-23
EP0984577B1 (en) 2004-12-22
WO1997002714A3 (en) 1997-02-13
ES2173053T3 (es) 2006-03-16
JP4908554B2 (ja) 2012-04-04
CN1905390A (zh) 2007-01-31
ATE225993T1 (de) 2002-10-15
US20020118653A1 (en) 2002-08-29
ES2146568T3 (es) 2005-07-01
EP0835593A2 (en) 1998-04-15
ES2146567T3 (es) 2006-02-16
AR033798A2 (es) 2004-01-07
US20110194571A1 (en) 2011-08-11
ES2144384T3 (es) 2002-11-16
FI124383B (fi) 2014-08-15
EP2259634A3 (en) 2013-08-07
ID25598A (id) 1997-03-13
ID26191A (id) 1997-03-13
FI122550B (fi) 2012-03-15
ID25602A (id) 1997-03-13
DE1213846T1 (de) 2002-11-28
EP1213846B1 (en) 2005-02-23
FI118500B (fi) 2007-11-30
AP682A (en) 1998-09-14
DK1213845T3 (da) 2011-08-15
AR002638A1 (es) 1998-03-25
FI124430B (fi) 2014-08-29
PT835568E (pt) 2002-04-29
HK1045771A1 (en) 2002-12-06
ES2437178T3 (es) 2014-01-09
FI119163B (fi) 2008-08-15
WO1997002675A2 (en) 1997-01-23
AU6342996A (en) 1997-02-05
DE69635287T2 (de) 2006-06-22
US5748687A (en) 1998-05-05
CA2645140C (en) 2014-05-20
DK1156593T3 (da) 2006-02-13
JP2003244023A (ja) 2003-08-29
DE69634275T2 (de) 2006-01-05
FI125334B (fi) 2015-08-31
JP2014045494A (ja) 2014-03-13
JP2011142691A (ja) 2011-07-21
EP0984577A2 (en) 2000-03-08
JP5887623B2 (ja) 2016-03-16
CN1905391A (zh) 2007-01-31
US6381264B1 (en) 2002-04-30
FI124382B (fi) 2014-08-15
CN1905389A (zh) 2007-01-31
KR19990028616A (ko) 1999-04-15
PT835593E (pt) 2002-10-31
EP1615350A2 (en) 2006-01-11
EP2285168A3 (en) 2012-06-20
JP2011182469A (ja) 2011-09-15
EP2285168A2 (en) 2011-02-16
FI20125077A (fi) 2012-01-25
FI20080292A (fi) 2008-04-17
EP2164184B1 (en) 2013-10-02
JP2010273380A (ja) 2010-12-02

Similar Documents

Publication Publication Date Title
CN1254933C (zh) 用于码分多址(cdma)通信系统的自动功率控制系统

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20060503

EXPY Termination of patent right or utility model