CA2125571A1 - Spatial Division Multiple Access Wireless Communication Systems - Google Patents

Spatial Division Multiple Access Wireless Communication Systems

Info

Publication number
CA2125571A1
CA2125571A1 CA 2125571 CA2125571A CA2125571A1 CA 2125571 A1 CA2125571 A1 CA 2125571A1 CA 2125571 CA2125571 CA 2125571 CA 2125571 A CA2125571 A CA 2125571A CA 2125571 A1 CA2125571 A1 CA 2125571A1
Authority
CA
Canada
Prior art keywords
base station
users
receive
signals
same 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.)
Granted
Application number
CA 2125571
Other languages
French (fr)
Other versions
CA2125571C (en
Inventor
Richard H. Roy
Bjorn Ottersten
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.)
Intel Corp
Original Assignee
Individual
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=25194624&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2125571(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2125571A1 publication Critical patent/CA2125571A1/en
Application granted granted Critical
Publication of CA2125571C publication Critical patent/CA2125571C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/267—Phased-array testing or checking devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0491—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more sectors, i.e. sector diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/022—One-way selective calling networks, e.g. wide area paging
    • H04W84/025—One-way selective calling networks, e.g. wide area paging with acknowledge back capability
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/12—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves by co-ordinating position lines of different shape, e.g. hyperbolic, circular, elliptical or radial

Abstract

A method and apparatus for increasing the capacity and quality of wireless communication between a plurality of remote users and a base station is disclosed. Using measurements from an array of receiving antennas at the base station, parameters of multiple signals transmitted to the base station from a plurality of users in the same channel are calculated and used to obtain the positions and velocities of the users. The locations and other related signal parameters are used to calculate appropriate spatial demultiplexing strategies, reconstructing the individual transmitted signals from the receiver measurements and reducing interference to acceptable levels. This heretofore unavailable location information is used in solving the hand-off problem. This information is also used to calculate an appropriate spatial multiplexing strategy for simultaneous transmission of signals to users in the same channel. This can be the same as or distinct from the aforementioned receive channel. In combination, the transmit and receive systems establish multiple full-duplex links in the same channel by directively receiving and transmitting signals at the base stations only. This invention can also be implemented at the mobile sites to improve signal quality and to establish point-point communication links between multiple mobile users. Furthermore, implementation of both transmit and receive functions at the base station is not required. A receive-only system base station will still improve received signal quality and therefore capacity in addition to mitigating the hand-off problem.
CA002125571A 1991-12-12 1992-11-24 Spatial division multiple access wireless communication systems Expired - Lifetime CA2125571C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/806,695 1991-12-12
US07/806,695 US5515378A (en) 1991-12-12 1991-12-12 Spatial division multiple access wireless communication systems
PCT/US1992/010074 WO1993012590A1 (en) 1991-12-12 1992-11-24 Spatial division multiple access wireless communication systems

Publications (2)

Publication Number Publication Date
CA2125571A1 true CA2125571A1 (en) 1993-06-24
CA2125571C CA2125571C (en) 2000-10-31

Family

ID=25194624

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002125571A Expired - Lifetime CA2125571C (en) 1991-12-12 1992-11-24 Spatial division multiple access wireless communication systems

Country Status (11)

Country Link
US (2) US5515378A (en)
EP (3) EP0616742B1 (en)
JP (1) JP3266258B2 (en)
KR (1) KR100292451B1 (en)
AT (3) ATE183865T1 (en)
AU (1) AU670766B2 (en)
CA (1) CA2125571C (en)
DE (2) DE69229876T2 (en)
ES (2) ES2137197T3 (en)
FI (1) FI942771A0 (en)
WO (1) WO1993012590A1 (en)

Families Citing this family (458)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757320A (en) * 1969-10-10 1971-04-09 British Petroleum Co IMPROVEMENTS IN METHODS AND APPARATUS FOR RECOVERING CULTIVATED SEMICRO-ORGANISMS ON A HYDROCARBON SUBSTRATE
US5625880A (en) * 1991-12-12 1997-04-29 Arraycomm, Incorporated Spectrally efficient and high capacity acknowledgement radio paging system
US5828658A (en) * 1991-12-12 1998-10-27 Arraycomm, Inc. Spectrally efficient high capacity wireless communication systems with spatio-temporal processing
US5515378A (en) * 1991-12-12 1996-05-07 Arraycomm, Inc. Spatial division multiple access wireless communication systems
US5592490A (en) * 1991-12-12 1997-01-07 Arraycomm, Inc. Spectrally efficient high capacity wireless communication systems
JP3766434B2 (en) 1991-12-16 2006-04-12 ザーカム ワイヤレス， インコーポレイテッド Spread spectrum data transmission system
GB2281012B (en) * 1993-08-12 1998-04-15 Northern Telecom Ltd Angle diversity for multiple beam antenna
GB2281009B (en) * 1993-08-12 1998-04-08 Northern Telecom Ltd Base station antenna arrangement
EP0647982B1 (en) * 1993-08-12 2002-10-23 Nortel Networks Limited Base station antenna arrangement
GB2281007B (en) * 1993-08-12 1998-04-15 Northern Telecom Ltd Base station antenna arrangement
GB2281008B (en) * 1993-08-12 1998-04-08 Northern Telecom Ltd Base station antenna arrangement
US5490165A (en) * 1993-10-28 1996-02-06 Qualcomm Incorporated Demodulation element assignment in a system capable of receiving multiple signals
US6088590A (en) 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
US6005856A (en) 1993-11-01 1999-12-21 Omnipoint Corporation Communication protocol for spread spectrum wireless communication system
FI106898B (en) * 1993-11-10 2001-04-30 Nokia Networks Oy Reception procedure and CDMA receiver
JP2556279B2 (en) * 1993-12-14 1996-11-20 日本電気株式会社 Radio link control method for mobile communication system
US5761621A (en) 1993-12-15 1998-06-02 Spectrum Information Technologies, Inc. Apparatus and methods for networking omni-modal radio devices
US6934558B1 (en) * 1993-12-15 2005-08-23 Mlr, Llc Adaptive omni-modal radio apparatus and methods
US6684071B1 (en) * 1994-01-11 2004-01-27 Ericsson Inc. Terminal position location using multiple beams
US5566209A (en) * 1994-02-10 1996-10-15 Telefonaktiebolaget Lm Ericsson Transceiver algorithms of antenna arrays
US6201801B1 (en) 1994-03-24 2001-03-13 Ericsson Inc. Polarization diversity phased array cellular base station and associated methods
US6151310A (en) * 1994-03-24 2000-11-21 Ericsson Inc. Dividable transmit antenna array for a cellular base station and associated method
US5548813A (en) * 1994-03-24 1996-08-20 Ericsson Inc. Phased array cellular base station and associated methods for enhanced power efficiency
FI107420B (en) * 1994-04-18 2001-07-31 Nokia Networks Oy Reception procedure and recipients
JP3751021B2 (en) * 1994-04-19 2006-03-01 ノースロップ グラマン コーポレーション Aircraft location and identification system
US6157343A (en) * 1996-09-09 2000-12-05 Telefonaktiebolaget Lm Ericsson Antenna array calibration
JPH10501395A (en) * 1994-06-03 1998-02-03 テレフオンアクチーボラゲツト エル エム エリクソン Diversity coupling for antennas
KR100376410B1 (en) * 1994-06-23 2003-06-19 텔레폰아크티에볼라게트 엘엠 에릭슨 Intra-cell handover method with antenna array
US5621752A (en) * 1994-06-23 1997-04-15 Qualcomm Incorporated Adaptive sectorization in a spread spectrum communication system
US6173014B1 (en) 1994-08-02 2001-01-09 Telefonaktiebolaget Lm Ericsson Method of and apparatus for interference rejection combining and downlink beamforming in a cellular radio communications system
DE4427755A1 (en) 1994-08-05 1996-02-08 Sel Alcatel Ag Fixed or mobile radio station for an SDMA mobile radio system
US5680414A (en) 1994-09-09 1997-10-21 Omnipoint Corporation Synchronization apparatus and method for spread spectrum receiver
US5856998A (en) 1994-09-09 1999-01-05 Omnipoint Corporation Method and apparatus for correlating a continuous phase modulated spread spectrum signal
US5627856A (en) 1994-09-09 1997-05-06 Omnipoint Corporation Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchronizing correlators
US5953370A (en) 1994-09-09 1999-09-14 Omnipoint Corporation Apparatus for receiving and correlating a spread spectrum signal
US5648982A (en) 1994-09-09 1997-07-15 Omnipoint Corporation Spread spectrum transmitter
US5629956A (en) 1994-09-09 1997-05-13 Omnipoint Corporation Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal
US5754584A (en) 1994-09-09 1998-05-19 Omnipoint Corporation Non-coherent spread-spectrum continuous-phase modulation communication system
US5754585A (en) 1994-09-09 1998-05-19 Omnipoint Corporation Method and apparatus for serial noncoherent correlation of a spread spectrum signal
US5963586A (en) 1994-09-09 1999-10-05 Omnipoint Corporation Method and apparatus for parallel noncoherent correlation of a spread spectrum signal
US5659574A (en) 1994-09-09 1997-08-19 Omnipoint Corporation Multi-bit correlation of continuous phase modulated signals
US5832028A (en) 1994-09-09 1998-11-03 Omnipoint Corporation Method and apparatus for coherent serial correlation of a spread spectrum signal
US5757847A (en) 1994-09-09 1998-05-26 Omnipoint Corporation Method and apparatus for decoding a phase encoded signal
US5610940A (en) 1994-09-09 1997-03-11 Omnipoint Corporation Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal
US5692007A (en) 1994-09-09 1997-11-25 Omnipoint Corporation Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuous-phase modulation
US5881100A (en) 1994-09-09 1999-03-09 Omnipoint Corporation Method and apparatus for coherent correlation of a spread spectrum signal
US5742583A (en) 1994-11-03 1998-04-21 Omnipoint Corporation Antenna diversity techniques
US6075993A (en) * 1994-11-16 2000-06-13 Sony Corporation Personal station and information providing system
US5701596A (en) * 1994-12-01 1997-12-23 Radio Frequency Systems, Inc. Modular interconnect matrix for matrix connection of a plurality of antennas with a plurality of radio channel units
JP3349853B2 (en) * 1994-12-27 2002-11-25 富士通株式会社 Wireless LAN system
US5579341A (en) * 1994-12-29 1996-11-26 Motorola, Inc. Multi-channel digital transceiver and method
US5684491A (en) * 1995-01-27 1997-11-04 Hazeltine Corporation High gain antenna systems for cellular use
US6101399A (en) * 1995-02-22 2000-08-08 The Board Of Trustees Of The Leland Stanford Jr. University Adaptive beam forming for transmitter operation in a wireless communication system
US7286855B2 (en) 1995-02-22 2007-10-23 The Board Of Trustees Of The Leland Stanford Jr. University Method and apparatus for adaptive transmission beam forming in a wireless communication system
US6006110A (en) * 1995-02-22 1999-12-21 Cisco Technology, Inc. Wireless communication network using time-varying vector channel equalization for adaptive spatial equalization
DE19506439A1 (en) * 1995-02-24 1996-08-29 Sel Alcatel Ag Allocation of a carrier frequency in an SDMA radio system
DE19511751C2 (en) * 1995-03-30 1998-07-09 Siemens Ag Process for the reconstruction of signals disturbed by multipath propagation
DE19518399A1 (en) * 1995-05-19 1996-11-21 Sel Alcatel Ag Processor-controlled device for tracking a mobile station in an SDMA mobile radio system
FI105513B (en) * 1995-05-24 2000-08-31 Nokia Networks Oy Reception procedure and recipients
FI105430B (en) * 1995-05-24 2000-08-15 Nokia Networks Oy Base station equipment and method for directing antenna beam
FI105512B (en) 1995-05-24 2000-08-31 Nokia Networks Oy A method for providing an angular repetition and a base station apparatus
FI105515B (en) * 1995-05-24 2000-08-31 Nokia Networks Oy A method for accelerating handoff and a cellular radio system
JPH08331625A (en) * 1995-05-29 1996-12-13 Nec Corp Mobile communication cellular system
US6018317A (en) * 1995-06-02 2000-01-25 Trw Inc. Cochannel signal processing system
FR2735937B1 (en) * 1995-06-23 1997-08-08 Thomson Csf METHOD FOR TARGETING TRANSMISSION CHANNELS AND RECEIVING OF CHANNELS FORMED BY A BASE STATION OF A MOBILE RADIOCOMMUNICATION SYSTEM
FI110645B (en) * 1995-06-30 2003-02-28 Nokia Corp Reception method and base station receiver
DE19524927A1 (en) * 1995-07-08 1997-01-09 Sel Alcatel Ag Route guidance of a subscriber within an SDMA mobile network
FR2738098B1 (en) * 1995-08-22 1997-09-26 Thomson Csf METHOD AND DEVICE FOR SPATIAL MULTIPLEXING OF DIGITAL RADIO-ELECTRIC SIGNALS EXCHANGED IN CELLULAR RADIOCOMMUNICATIONS
WO1997008849A1 (en) * 1995-08-22 1997-03-06 Thomson-Csf Method and device for spatial multiplexing-demultiplexing of radio signals for an sdma mobile radio system
DE19535329C2 (en) * 1995-09-22 2002-02-28 Bernhard Walke Method for time division multiplexing of ATM cells in a mobile radio system
DE19535441A1 (en) * 1995-09-23 1997-03-27 Bosch Gmbh Robert Antenna of a central station of a point-to-multipoint radio relay system
US6131034A (en) * 1995-10-18 2000-10-10 Sc-Wireless Inc Method and apparatus for collector arrays in wireless communications systems
US5715516A (en) * 1995-10-18 1998-02-03 Cellular Telecom, Ltd. Method and apparatus for wireless communication employing collector arrays
US6192038B1 (en) 1995-10-18 2001-02-20 Mdiversity Inc. Method and apparatus for wireless communication employing aggregation for digital signals
US6137784A (en) * 1995-10-18 2000-10-24 Sc-Wireless Inc. Method and apparatus for wireless communication employing control for confidence metric bandwidth reduction
US5805576A (en) * 1995-10-18 1998-09-08 Cellular Telecom, Ltd. Method and apparatus for TDMA wireless communication employing collector arrays for range extension
US5815116A (en) * 1995-11-29 1998-09-29 Trw Inc. Personal beam cellular communication system
US5924020A (en) * 1995-12-15 1999-07-13 Telefonaktiebolaget L M Ericsson (Publ) Antenna assembly and associated method for radio communication device
GB2309616B (en) * 1996-01-27 2000-05-17 Motorola Ltd A space division multiple access radio communication system and method for allocating channels therein
AT408933B (en) * 1996-05-20 2002-04-25 Josef Dipl Ing Fuhl METHOD AND DEVICE FOR INCREASING THE SUBSCRIBER CAPACITY OF CELLULAR MOBILE RADIO NETWORKS
GB2314730B (en) * 1996-06-26 2000-10-04 Roke Manor Research Improvements in or relating to packet radio systems
US5825898A (en) * 1996-06-27 1998-10-20 Lamar Signal Processing Ltd. System and method for adaptive interference cancelling
GB2314716A (en) * 1996-06-27 1998-01-07 Motorola Ltd Direction-finding for cellular radio
US5912931A (en) * 1996-08-01 1999-06-15 Nextel Communications Method for multicarrier signal detection and parameter estimation in mobile radio communication channels
US6430216B1 (en) 1997-08-22 2002-08-06 Data Fusion Corporation Rake receiver for spread spectrum signal demodulation
CA2302289C (en) 1996-08-29 2005-11-08 Gregory G. Raleigh Spatio-temporal processing for communication
US5945948A (en) * 1996-09-03 1999-08-31 Motorola, Inc. Method and apparatus for location finding in a communication system
US7714778B2 (en) 1997-08-20 2010-05-11 Tracbeam Llc Wireless location gateway and applications therefor
US7903029B2 (en) 1996-09-09 2011-03-08 Tracbeam Llc Wireless location routing applications and architecture therefor
US6236365B1 (en) 1996-09-09 2001-05-22 Tracbeam, Llc Location of a mobile station using a plurality of commercial wireless infrastructures
US9134398B2 (en) 1996-09-09 2015-09-15 Tracbeam Llc Wireless location using network centric location estimators
WO1998010307A1 (en) 1996-09-09 1998-03-12 Dennis Jay Dupray Location of a mobile station
US5848105A (en) * 1996-10-10 1998-12-08 Gardner; William A. GMSK signal processors for improved communications capacity and quality
US5909470A (en) * 1996-10-11 1999-06-01 Arraycomm, Inc. Method and apparatus for decision directed demodulation using antenna arrays and spatial processing
US5930243A (en) * 1996-10-11 1999-07-27 Arraycomm, Inc. Method and apparatus for estimating parameters of a communication system using antenna arrays and spatial processing
US7035661B1 (en) 1996-10-11 2006-04-25 Arraycomm, Llc. Power control with signal quality estimation for smart antenna communication systems
US6463295B1 (en) 1996-10-11 2002-10-08 Arraycomm, Inc. Power control with signal quality estimation for smart antenna communication systems
US6275543B1 (en) 1996-10-11 2001-08-14 Arraycomm, Inc. Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing
AU4896697A (en) * 1996-10-18 1998-05-15 Watkins-Johnson Company Wireless communication network using time-varying vector channel equalization for adaptive spatial equalization
US5886988A (en) 1996-10-23 1999-03-23 Arraycomm, Inc. Channel assignment and call admission control for spatial division multiple access communication systems
US5852506A (en) * 1996-10-25 1998-12-22 Sonics Associates, Inc. Method and apparatus for controlling program start/stop operations
US5754139A (en) * 1996-10-30 1998-05-19 Motorola, Inc. Method and intelligent digital beam forming system responsive to traffic demand
FR2755565B1 (en) * 1996-11-07 1999-01-08 France Telecom TRANSMISSION METHOD BY A BASE STATION EQUIPPED WITH A MULTI-SENSOR ANTENNA TO A MOBILE
US5914946A (en) * 1996-11-08 1999-06-22 Lucent Technologies Inc. TDM-based fixed wireless loop system
DE69636990T2 (en) * 1996-11-22 2007-12-06 Mitsubishi Denki K.K. A channel estimation circuit and method for estimating an optimal channel from a plurality of channels
AU762457B2 (en) * 1996-11-26 2003-06-26 Trw Inc. A method of complex phase equalization in a communication system using two-dimensional signal constellations
EP0948847A1 (en) * 1996-11-26 1999-10-13 TRW Inc. Cochannel signal processing system
AU727787B2 (en) * 1996-11-26 2000-12-21 Trw Inc. Cochannel signal processing system
US6122260A (en) * 1996-12-16 2000-09-19 Civil Telecommunications, Inc. Smart antenna CDMA wireless communication system
KR100261706B1 (en) * 1996-12-17 2000-07-15 가나이 쓰도무 Digital broadcasting signal receiving device and, receiving and recording/reproducing apparatus
US6026304A (en) * 1997-01-08 2000-02-15 U.S. Wireless Corporation Radio transmitter location finding for wireless communication network services and management
US6456852B2 (en) 1997-01-08 2002-09-24 Trafficmaster Usa, Inc. Internet distributed real-time wireless location database
US6112095A (en) * 1997-01-08 2000-08-29 Us Wireless Corporation Signature matching for location determination in wireless communication systems
US5710995A (en) * 1997-01-16 1998-01-20 Ford Motor Company Adaptive antenna receiver
FI970266A (en) * 1997-01-22 1998-07-23 Nokia Telecommunications Oy A method of increasing the range of the control channels in a cellular radio system
US6272120B1 (en) * 1997-01-28 2001-08-07 Cisco Technology, Inc. Multi-radio bridge
US6301238B1 (en) 1997-01-28 2001-10-09 Telefonaktiebolaget Lm Ericsson (Publ) Directional-beam generative apparatus and associated method
US6052599A (en) * 1997-01-30 2000-04-18 At & T Corp. Cellular communication system with multiple same frequency broadcasts in a cell
US6501771B2 (en) 1997-02-11 2002-12-31 At&T Wireless Services, Inc. Delay compensation
US5933421A (en) * 1997-02-06 1999-08-03 At&T Wireless Services Inc. Method for frequency division duplex communications
ATE258000T1 (en) 1997-02-13 2004-01-15 Nokia Corp METHOD AND DEVICE FOR DIRECTED RADIO TRANSMISSION
DE69731978T2 (en) 1997-02-13 2005-10-06 Nokia Corp. METHOD AND DEVICE FOR TRANSMITTED RADIO TRANSMISSION
WO1998036471A1 (en) 1997-02-13 1998-08-20 Nokia Telecommunications Oy Method and apparatus for directional radio communication
US6584144B2 (en) 1997-02-24 2003-06-24 At&T Wireless Services, Inc. Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
US6128276A (en) * 1997-02-24 2000-10-03 Radix Wireless, Inc. Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays
US6359923B1 (en) * 1997-12-18 2002-03-19 At&T Wireless Services, Inc. Highly bandwidth efficient 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
US6900775B2 (en) 1997-03-03 2005-05-31 Celletra Ltd. Active antenna array configuration and control for cellular communication systems
KR100521854B1 (en) * 1997-03-03 2005-10-14 셀레트라 리미티드 Cellular communications systems
US6353601B1 (en) * 1997-03-05 2002-03-05 Nokia Telecommunications Oy Method for selecting a signal, and a cellular radio system
DE59711749D1 (en) * 1997-03-20 2004-08-05 Siemens Ag Method and receiving device for detecting data
US6282228B1 (en) 1997-03-20 2001-08-28 Xircom, Inc. Spread spectrum codes for use in communication
GB9706797D0 (en) * 1997-04-03 1997-05-21 Sun Electric Uk Ltd Wireless data transmission
US6085076A (en) * 1997-04-07 2000-07-04 Omnipoint Corporation Antenna diversity for wireless communication system
US6178248B1 (en) 1997-04-14 2001-01-23 Andrea Electronics Corporation Dual-processing interference cancelling system and method
US6104930A (en) * 1997-05-02 2000-08-15 Nortel Networks Corporation Floating transceiver assignment for cellular radio
EP0878974A1 (en) * 1997-05-16 1998-11-18 Italtel s.p.a. Communication method and a base transceiver station for a mobile radio communication system
US6008760A (en) * 1997-05-23 1999-12-28 Genghis Comm Cancellation system for frequency reuse in microwave communications
US6331837B1 (en) 1997-05-23 2001-12-18 Genghiscomm Llc Spatial interferometry multiplexing in wireless communications
JPH10336087A (en) * 1997-05-30 1998-12-18 Kyocera Corp Maximum ratio synthesis transmission diversity device
US6349094B1 (en) 1997-07-03 2002-02-19 Mdiversity Inc. Method and apparatus for wireless communications employing control for broadcast transmission
US6072792A (en) * 1997-07-03 2000-06-06 Telefonaktiebolaget Lm Ericsson Power control apparatus, and an associated method, for TDMA transmitter
FI103618B (en) * 1997-07-04 1999-07-30 Nokia Telecommunications Oy Interpreting the received signal
SE509776C2 (en) 1997-07-04 1999-03-08 Ericsson Telefon Ab L M Device and method of antenna loop control in radio communication systems
US6466557B1 (en) 1997-07-14 2002-10-15 Sanyo Electric Co., Ltd. Transmission channel allocation method and allocation apparatus
US6195556B1 (en) 1997-07-15 2001-02-27 Metawave Communications Corporation System and method of determining a mobile station's position using directable beams
CA2244369A1 (en) * 1997-07-30 1999-01-30 Nec Corporation Multiplex radio communication apparatus
US5909471A (en) * 1997-08-08 1999-06-01 Arraycomm, Inc. Method and system for rapid initial control signal detection in a wireless communications system
US5952969A (en) * 1997-08-18 1999-09-14 Telefonakiebolaget L M Ericsson (Publ) Method and system for determining the position of mobile radio terminals
US5900837A (en) * 1997-08-21 1999-05-04 Fourth Dimension Systems Corp. Method and apparatus for compensation of diffraction divergence of beam of an antenna system
AU9027798A (en) 1997-08-21 1999-03-08 Data Fusion Corporation Method and apparatus for acquiring wide-band pseudorandom noise encoded waveforms
US6131016A (en) * 1997-08-27 2000-10-10 At&T Corp Method and apparatus for enhancing communication reception at a wireless communication terminal
EP0899813A3 (en) * 1997-08-29 2000-11-08 Siemens Aktiengesellschaft Method for determining the directivity of a base station and such a base station
US6108565A (en) * 1997-09-15 2000-08-22 Adaptive Telecom, Inc. Practical space-time radio method for CDMA communication capacity enhancement
US6154657A (en) * 1997-10-21 2000-11-28 Telefonaktiebolaget Lm Ericsson Smart subdivision of base station candidates for position location accuracy
DE19747366C2 (en) * 1997-10-27 1999-08-12 Siemens Ag Method, base station, receiving device and mobile station for transmitting useful information and signaling information for a mobile communication system
IT1295808B1 (en) * 1997-11-04 1999-05-27 Cselt Centro Studi Lab Telecom PROCEDURE FOR THE ASSIGNMENT OF CHANNELS IN A COMMUNICATION SYSTEM BETWEEN MOBILE VEHICLES WITH MULTIPLE ACCESS TO DIVISION OF
US6069922A (en) * 1997-11-14 2000-05-30 Nortel Networks Corporation Method and apparatus for reducing cross-talk in broadband systems using line-coding
SE513656C2 (en) 1997-11-21 2000-10-16 Ericsson Telefon Ab L M Method and apparatus for receiving radio signals by means of antenna lobes
US6006097A (en) * 1997-11-24 1999-12-21 Telefonaktiebolaget L M Ericsson (Publ) Method for determining position of mobile communication terminals
FR2771586B1 (en) * 1997-11-27 1999-12-31 Alsthom Cge Alcatel METHOD FOR SPATIAL LOCATION OF A MOBILE STATION IN A CELL OF A COMMUNICATION NETWORK, CORRESPONDING BASE STATION, MOBILE STATION AND PACKAGE
DE19753932A1 (en) * 1997-12-05 1999-06-10 Cit Alcatel Method for determining the direction of reception by means of a group antenna, base station and radio system
US7299071B1 (en) 1997-12-10 2007-11-20 Arraycomm, Llc Downlink broadcasting by sequential transmissions from a communication station having an antenna array
US6185440B1 (en) 1997-12-10 2001-02-06 Arraycomm, Inc. Method for sequentially transmitting a downlink signal from a communication station that has an antenna array to achieve an omnidirectional radiation
US6167039A (en) * 1997-12-17 2000-12-26 Telefonaktiebolget Lm Ericsson Mobile station having plural antenna elements and interference suppression
US6580910B1 (en) * 1997-12-19 2003-06-17 Telefonaktiebolaget L M Ericsson (Publ) Method and system for improving handoffs in cellular mobile radio systems
DE19803188B4 (en) * 1998-01-28 2006-04-20 Siemens Ag Method and base station for data transmission in a radio communication system
US5973638A (en) * 1998-01-30 1999-10-26 Micronetics Wireless, Inc. Smart antenna channel simulator and test system
US6236363B1 (en) 1998-01-30 2001-05-22 Micronetics Wireless Smart antenna channel simulator and test system
US5955992A (en) * 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
US7787514B2 (en) * 1998-02-12 2010-08-31 Lot 41 Acquisition Foundation, Llc Carrier interferometry coding with applications to cellular and local area networks
US6615024B1 (en) 1998-05-01 2003-09-02 Arraycomm, Inc. Method and apparatus for determining signatures for calibrating a communication station having an antenna array
US6226601B1 (en) 1998-05-15 2001-05-01 Trimble Navigation Limited Seismic survey system
US6233228B1 (en) * 1998-05-15 2001-05-15 Northrop Grumman Corporation Personal communication system architecture
DE19825536B4 (en) * 1998-06-08 2005-05-19 IQ wireless GmbH, Entwicklungsgesellschaft für Systeme und Technologien der Telekommunikation Method and apparatus for a full-duplex radio transmission system with CDMA access
KR100272565B1 (en) * 1998-06-16 2000-11-15 서평원 Method for allocating Optimal Orthogonal Code of Reverse Link
US6795424B1 (en) * 1998-06-30 2004-09-21 Tellabs Operations, Inc. Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems
FR2780817B1 (en) * 1998-07-06 2007-09-14 Sfr Sa RADIOELECTRIC RADIATION BEAM (S) ORIENTATION METHOD (S) FOR COMMUNICATION BETWEEN A BASE STATION AND A MOBILE RADIOTELEPHONE, AND CORRESPONDING BASE STATION
US6216244B1 (en) 1998-10-07 2001-04-10 Cisco Systems, Inc. Point-to-multipoint variable antenna compensation system
JP3985883B2 (en) 1998-10-09 2007-10-03 松下電器産業株式会社 Radio wave arrival direction estimation antenna device
AU1211400A (en) * 1998-10-15 2000-05-01 Airnet Communications Corporation Dynamic allocation of carrier frequencies in a wireless broadband base station
JP2002529017A (en) * 1998-10-23 2002-09-03 ケアリー・コーポレイション Broadband wireless mesh topology network
DE69831691T2 (en) * 1998-11-11 2006-06-22 Nokia Corp. PROCESS AND DEVICE FOR DIRECT COMMUNICATION
US7076228B1 (en) * 1999-11-10 2006-07-11 Rilling Kenneth F Interference reduction for multiple signals
WO2000029979A1 (en) * 1998-11-16 2000-05-25 Creaholic S.A. Method for the location-dependent retrieval of information from databases and system for carrying out said method
US8135413B2 (en) 1998-11-24 2012-03-13 Tracbeam Llc Platform and applications for wireless location and other complex services
US6128330A (en) 1998-11-24 2000-10-03 Linex Technology, Inc. Efficient shadow reduction antenna system for spread spectrum
JP4557429B2 (en) * 1998-11-24 2010-10-06 インテル・コーポレーション Method and apparatus for calibrating a wireless communication station having an array antenna
US7076227B1 (en) * 1998-12-03 2006-07-11 Apex/Eclipse Systems, Inc. Receiving system with improved directivity and signal to noise ratio
US7006475B1 (en) * 1998-12-21 2006-02-28 Hitachi, Ltd. Mobile communication method using CDMA multiplexing technique and mobile communication system
US6215812B1 (en) 1999-01-28 2001-04-10 Bae Systems Canada Inc. Interference canceller for the protection of direct-sequence spread-spectrum communications from high-power narrowband interference
DE19907476C1 (en) * 1999-02-16 2001-02-08 Hertz Inst Heinrich Process for the control and dynamic adjustment of the directional characteristics of linear antenna arrays in the spatial separation of signals
US6363345B1 (en) 1999-02-18 2002-03-26 Andrea Electronics Corporation System, method and apparatus for cancelling noise
JP3001570B1 (en) 1999-02-22 2000-01-24 埼玉日本電気株式会社 Adaptive antenna directivity control method and system
FR2790098B1 (en) * 1999-02-23 2001-05-11 Thomson Csf METHOD FOR LOCATING TERRESTRIAL MOBILE RADIOS FROM AN AIRCRAFT
WO2000051368A2 (en) * 1999-02-26 2000-08-31 Telefonaktiebolaget Lm Ericsson (Publ) Smart antenna beam assignment at mobile station hand-off
AU3467800A (en) * 1999-02-26 2000-09-14 Telefonaktiebolaget Lm Ericsson (Publ) Smart antenna beam assignment at mobile station call setup
DE69912734T2 (en) * 1999-03-12 2004-05-27 Motorola, Inc., Schaumburg Device and method for generating the weighting of a transmission antenna
JP3258973B2 (en) 1999-03-24 2002-02-18 三洋電機株式会社 Transmission channel allocation method and wireless device using the same
JP3229864B2 (en) * 1999-03-24 2001-11-19 三洋電機株式会社 Transmission channel allocation method and wireless device using the same
US6177906B1 (en) * 1999-04-01 2001-01-23 Arraycomm, Inc. Multimode iterative adaptive smart antenna processing method and apparatus
US7952511B1 (en) 1999-04-07 2011-05-31 Geer James L Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns
US6600914B2 (en) 1999-05-24 2003-07-29 Arraycomm, Inc. System and method for emergency call channel allocation
JP3213601B2 (en) * 1999-05-31 2001-10-02 三洋電機株式会社 Wireless base station
US6141567A (en) 1999-06-07 2000-10-31 Arraycomm, Inc. Apparatus and method for beamforming in a changing-interference environment
US7139592B2 (en) * 1999-06-21 2006-11-21 Arraycomm Llc Null deepening for an adaptive antenna based communication station
US6370129B1 (en) 1999-06-28 2002-04-09 Lucent Technologies, Inc. High-speed data services using multiple transmit antennas
ATE467277T1 (en) 1999-07-02 2010-05-15 Steven J Shattil METHOD AND DEVICE FOR SEPARATING SIGNALS IN WIRELESS COMMUNICATION THROUGH FREQUENCY DIVERSITY
US6067290A (en) 1999-07-30 2000-05-23 Gigabit Wireless, Inc. Spatial multiplexing in a cellular network
US6757265B1 (en) 1999-07-30 2004-06-29 Iospan Wireless, Inc. Subscriber unit in a hybrid link incorporating spatial multiplexing
MXPA02001046A (en) 1999-07-30 2003-08-20 Iospan Wireless Inc Spatial multiplexing in a cellular network.
US6690657B1 (en) 2000-02-25 2004-02-10 Berkeley Concept Research Corporation Multichannel distributed wireless repeater network
US6470192B1 (en) 1999-08-16 2002-10-22 Telefonaktiebolaget Lm Ericcson (Publ) Method of an apparatus for beam reduction and combining in a radio communications system
US7106853B1 (en) 1999-09-20 2006-09-12 Apex/Eclipse Systems, Inc. Method and means for increasing inherent channel capacity for wired network
WO2002000316A1 (en) 1999-09-24 2002-01-03 Goldberg Sheldon F Geographically constrained network services
US6252867B1 (en) * 1999-09-30 2001-06-26 Motorola, Inc. Method and apparatus for determining remote unit location using phased array antenna elements
US7161912B1 (en) * 1999-10-18 2007-01-09 Lucent Technologies Inc. Multi-carrier/multi-sector channel pooling in a wireless communication system base station
US6594367B1 (en) 1999-10-25 2003-07-15 Andrea Electronics Corporation Super directional beamforming design and implementation
WO2001031743A1 (en) * 1999-10-26 2001-05-03 Koninklijke Philips Electronics N.V. Control of multidirectional antenna structure in a primary station for use in a radio communication network
US6985466B1 (en) 1999-11-09 2006-01-10 Arraycomm, Inc. Downlink signal processing in CDMA systems utilizing arrays of antennae
US6492942B1 (en) 1999-11-09 2002-12-10 Com Dev International, Inc. Content-based adaptive parasitic array antenna system
JP3416597B2 (en) * 1999-11-19 2003-06-16 三洋電機株式会社 Wireless base station
US6654362B1 (en) 1999-11-24 2003-11-25 Lucent Technologies, Inc. Use of location in handoff in wireless communication systems
US6351499B1 (en) * 1999-12-15 2002-02-26 Iospan Wireless, Inc. Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter
US7177298B2 (en) * 2000-01-07 2007-02-13 Gopal Chillariga Dynamic channel allocation in multiple-access communication systems
US7644018B1 (en) * 2000-02-08 2010-01-05 Sony Corporation System and method for providing publicly vended content via a wireless network
JP2001267991A (en) * 2000-03-16 2001-09-28 Sony Corp Transmitter, transmission method, communication system and communication method
AU2001249287A1 (en) 2000-03-21 2001-10-03 Charles M. Leedom Jr. A tiered wireless, multi-modal access system and method
EP1137305B1 (en) * 2000-03-23 2008-01-09 Telefonaktiebolaget LM Ericsson (publ) Method and system for locating mobile stations in a mobile communication network
EP1137301A1 (en) * 2000-03-23 2001-09-26 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Method for location of mobile stations in a mobile network
JP3520026B2 (en) * 2000-04-03 2004-04-19 三洋電機株式会社 Radio base station, control method thereof, and program recording medium
US6980527B1 (en) 2000-04-25 2005-12-27 Cwill Telecommunications, Inc. Smart antenna CDMA wireless communication system
JP4674030B2 (en) * 2000-04-26 2011-04-20 インテル・コーポレーション Adaptive smart antenna processing method and apparatus
EP1295150A2 (en) * 2000-05-05 2003-03-26 Greenwich Technologies Remote sensing using rayleigh signaling
US6823021B1 (en) * 2000-10-27 2004-11-23 Greenwich Technologies Associates Method and apparatus for space division multiple access receiver
US7965794B2 (en) * 2000-05-05 2011-06-21 Greenwich Technologies Associates Method and apparatus for broadcasting with spatially diverse signals
EP1152548A1 (en) * 2000-05-05 2001-11-07 Lucent Technologies Inc. Increased data communication capacity of a high rate wireless network
US6647015B2 (en) 2000-05-22 2003-11-11 Sarnoff Corporation Method and apparatus for providing a broadband, wireless, communications network
DE10025989B4 (en) * 2000-05-25 2005-11-03 Siemens Ag Beamforming method
US10641861B2 (en) 2000-06-02 2020-05-05 Dennis J. Dupray Services and applications for a communications network
US10684350B2 (en) 2000-06-02 2020-06-16 Tracbeam Llc Services and applications for a communications network
US9875492B2 (en) 2001-05-22 2018-01-23 Dennis J. Dupray Real estate transaction system
US7209745B1 (en) * 2000-06-09 2007-04-24 Intel Corporation Cellular wireless re-use structure that allows spatial multiplexing and diversity communication
US8363744B2 (en) 2001-06-10 2013-01-29 Aloft Media, Llc Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks
US6577879B1 (en) 2000-06-21 2003-06-10 Telefonaktiebolaget Lm Ericsson (Publ) System and method for simultaneous transmission of signals in multiple beams without feeder cable coherency
US6535720B1 (en) * 2000-06-28 2003-03-18 Trw Inc. Digital power control system for a multi-carrier transmitter
JP3574055B2 (en) * 2000-08-25 2004-10-06 三洋電機株式会社 Wireless base station
US6937592B1 (en) * 2000-09-01 2005-08-30 Intel Corporation Wireless communications system that supports multiple modes of operation
US7242964B1 (en) 2000-09-28 2007-07-10 Lucent Technologies Inc. Shaping of EM field for transmission to multiple terminals
US7630346B2 (en) 2000-09-29 2009-12-08 Intel Corporation Hopping on random access channels
US7062294B1 (en) 2000-09-29 2006-06-13 Arraycomm, Llc. Downlink transmission in a wireless data communication system having a base station with a smart antenna system
US6795409B1 (en) 2000-09-29 2004-09-21 Arraycomm, Inc. Cooperative polling in a wireless data communication system having smart antenna processing
US6564036B1 (en) 2000-09-29 2003-05-13 Arraycomm, Inc. Mode switching in adaptive array communications systems
US6982968B1 (en) 2000-09-29 2006-01-03 Arraycomm, Inc. Non-directional transmitting from a wireless data base station having a smart antenna system
US7043259B1 (en) * 2000-09-29 2006-05-09 Arraycomm, Inc. Repetitive paging from a wireless data base station having a smart antenna system
US7072315B1 (en) 2000-10-10 2006-07-04 Adaptix, Inc. Medium access control for orthogonal frequency-division multiple-access (OFDMA) cellular networks
US6870808B1 (en) * 2000-10-18 2005-03-22 Adaptix, Inc. Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks
US7050480B2 (en) * 2000-10-27 2006-05-23 L3 Communications Corporation Code assignment algorithm for synchronous DS-CDMA links with SDMA using estimated spatial signature vectors
US6567387B1 (en) 2000-11-07 2003-05-20 Intel Corporation System and method for data transmission from multiple wireless base transceiver stations to a subscriber unit
US6721302B1 (en) * 2000-11-17 2004-04-13 Nokia Corporation Apparatus, and associated method, for communicating packet data in a SDMA (Space-Division, Multiple-Access) communication scheme
US6947507B2 (en) * 2000-11-27 2005-09-20 Calamp Corp. Spatial-temporal methods and systems for reception of non-line-of-sight communication signals
US6801589B1 (en) * 2000-11-30 2004-10-05 Arraycomm, Inc. Relative timing acquisition for a radio communications system
JP3589292B2 (en) * 2000-11-30 2004-11-17 日本電気株式会社 Mobile communication device
US6650881B1 (en) * 2000-11-30 2003-11-18 Arraycomm, Inc. Calculating spatial weights in a radio communications system
US6947748B2 (en) * 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
WO2002049306A2 (en) * 2000-12-15 2002-06-20 Broadstorm Telecommunications, Inc. Multi-carrier communications with group-based subcarrier allocation
CN1236566C (en) * 2000-12-25 2006-01-11 三洋电机株式会社 Radio device with transmission directivity, and control method and control program for radio device
DE60018223T2 (en) * 2000-12-29 2005-12-29 Nokia Corp. BASIC STATION, BASE STATION MODULE AND METHOD FOR ESTIMATING PARAMETERS FOR THE UP SIGNALS
US7978673B1 (en) 2000-12-29 2011-07-12 Intel Corporation Channel allocation based on random plus planned processes
US7164669B2 (en) * 2001-01-19 2007-01-16 Adaptix, Inc. Multi-carrier communication with time division multiplexing and carrier-selective loading
US20040114548A1 (en) * 2001-01-23 2004-06-17 Jyoti Prasad Polarization division multiplex access system
US6940827B2 (en) 2001-03-09 2005-09-06 Adaptix, Inc. Communication system using OFDM for one direction and DSSS for another direction
US20020136287A1 (en) * 2001-03-20 2002-09-26 Heath Robert W. Method, system and apparatus for displaying the quality of data transmissions in a wireless communication system
US6961545B2 (en) * 2001-04-09 2005-11-01 Atheros Communications, Inc. Method and system for providing antenna diversity
US7274677B1 (en) * 2001-04-16 2007-09-25 Cisco Technology, Inc. Network management architecture
NO314109B1 (en) * 2001-04-20 2003-01-27 Radionor Comm As Device for increasing capacity between transmitters and receivers in short-range wireless communication networks, especially in ISM frequency bands
WO2002093965A1 (en) * 2001-05-15 2002-11-21 Telefonaktiebolaget L M Ericsson (Publ) Co-channel interference suppression by estimating the time of arrival (toa)
US8082096B2 (en) 2001-05-22 2011-12-20 Tracbeam Llc Wireless location routing applications and architecture therefor
US8249187B2 (en) 2002-05-09 2012-08-21 Google Inc. System, method and apparatus for mobile transmit diversity using symmetric phase difference
CA2447777A1 (en) * 2001-05-31 2002-12-12 Magnolia Broadband, Inc. Communication device with smart antenna using a quality-indication signal
US7167526B2 (en) * 2001-06-07 2007-01-23 National Univ. Of Singapore Wireless communication apparatus and method
US20030026348A1 (en) * 2001-06-07 2003-02-06 National University Of Singapore Wireless communication apparatus and method
US6751444B1 (en) 2001-07-02 2004-06-15 Broadstorm Telecommunications, Inc. Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems
DE10142404B4 (en) * 2001-08-31 2005-09-08 Deutsches Zentrum für Luft- und Raumfahrt e.V. Method for the radio transmission of digital message signals
ITVE20010038A1 (en) * 2001-09-04 2003-03-05 Itec IMPROVED ACCESS NETWORK FOR MOBILE TELECOMMUNICATIONS AND RELATED DEVICES
US7149254B2 (en) * 2001-09-06 2006-12-12 Intel Corporation Transmit signal preprocessing based on transmit antennae correlations for multiple antennae systems
US8617008B2 (en) 2001-09-12 2013-12-31 Pillar Vision, Inc. Training devices for trajectory-based sports
US8409024B2 (en) 2001-09-12 2013-04-02 Pillar Vision, Inc. Trajectory detection and feedback system for golf
WO2003023444A1 (en) 2001-09-12 2003-03-20 Data Fusion Corporation Gps near-far resistant receiver
DE10145366A1 (en) * 2001-09-14 2003-04-03 Siemens Ag Determining transmission point-specific transmission signals involves determining weighting factors from source and/or transmission point-specific quality criterion
US6788948B2 (en) 2001-09-28 2004-09-07 Arraycomm, Inc. Frequency dependent calibration of a wideband radio system using narrowband channels
US20030064753A1 (en) * 2001-09-28 2003-04-03 Kasapi Athanasios A. System and related methods for beamforming in a multi-point communications environment
US8085889B1 (en) 2005-04-11 2011-12-27 Rambus Inc. Methods for managing alignment and latency in interference cancellation
US7039016B1 (en) 2001-09-28 2006-05-02 Arraycomm, Llc Calibration of wideband radios and antennas using a narrowband channel
US6570527B1 (en) * 2001-09-28 2003-05-27 Arraycomm, Inc. Calibration of differential frequency-dependent characteristics of a radio communications system
US20030067890A1 (en) * 2001-10-10 2003-04-10 Sandesh Goel System and method for providing automatic re-transmission of wirelessly transmitted information
US7039136B2 (en) 2001-11-19 2006-05-02 Tensorcomm, Inc. Interference cancellation in a signal
US7336719B2 (en) * 2001-11-28 2008-02-26 Intel Corporation System and method for transmit diversity base upon transmission channel delay spread
US7206293B2 (en) 2001-12-28 2007-04-17 Arraycomm Llc System and related methods for beamforming in a multi-point communications environment
US7020110B2 (en) * 2002-01-08 2006-03-28 Qualcomm Incorporated Resource allocation for MIMO-OFDM communication systems
US6862271B2 (en) * 2002-02-26 2005-03-01 Qualcomm Incorporated Multiple-input, multiple-output (MIMO) systems with multiple transmission modes
JP3913575B2 (en) * 2002-02-28 2007-05-09 三洋電機株式会社 Wireless device, wireless communication system, space path control method, and space path control program
US7012978B2 (en) * 2002-03-26 2006-03-14 Intel Corporation Robust multiple chain receiver
TW201002122A (en) 2002-04-12 2010-01-01 Interdigital Tech Corp Access burst detector correlator pool
KR20020043518A (en) * 2002-05-14 2002-06-10 최중현 Statistics method for currency quality reflection urea in cdma system
US6842632B2 (en) * 2002-12-30 2005-01-11 Nokia Corporation Apparatus, and associated method, for facilitating antenna weight selection utilizing deterministic perturbation gradient approximation
CN100435489C (en) * 2002-05-15 2008-11-19 诺基亚有限公司 Apparatus, and associated method, for facilitating antenna weight selection utilizing deterministic perturbation gradient approximation
US7327800B2 (en) * 2002-05-24 2008-02-05 Vecima Networks Inc. System and method for data detection in wireless communication systems
US20030235252A1 (en) * 2002-06-19 2003-12-25 Jose Tellado Method and system of biasing a timing phase estimate of data segments of a received signal
US6907272B2 (en) * 2002-07-30 2005-06-14 UNIVERSITé LAVAL Array receiver with subarray selection
FR2844134B1 (en) * 2002-09-04 2006-01-13 Nortel Networks Ltd METHOD OF ALLOCATING RESOURCES IN A RADIO COMMUNICATION SYSTEM WITH SPATIAL DIVISION AND EQUIPMENT FOR IMPLEMENTING THE METHOD.
AU2002330691A1 (en) * 2002-09-06 2004-03-29 Nokia Corporation Antenna selection method
DE10241959A1 (en) * 2002-09-10 2004-03-11 Siemens Ag Signal transmission method in radio communication system, includes several intermediate stations with antennas configured as a single smart antenna
US7808937B2 (en) 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US7876810B2 (en) 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
US7787572B2 (en) 2005-04-07 2010-08-31 Rambus Inc. Advanced signal processors for interference cancellation in baseband receivers
US8005128B1 (en) 2003-09-23 2011-08-23 Rambus Inc. Methods for estimation and interference cancellation for signal processing
US7096051B1 (en) * 2002-09-27 2006-08-22 Lawrence Alder Enhancing signals in a two-way radio system
US7298275B2 (en) * 2002-09-27 2007-11-20 Rockwell Automation Technologies, Inc. Machine associating method and apparatus
US7352774B2 (en) * 2002-09-30 2008-04-01 Arraycomm, Llc Multiplexing different types of data sequences
US7866322B2 (en) 2002-10-15 2011-01-11 Given Imaging Ltd. Device, system and method for transfer of signals to a moving device
KR100761420B1 (en) 2002-10-25 2007-09-27 어레이컴, 엘엘씨 Adaptive smart antenna processing method and apparatus
KR100474849B1 (en) * 2002-11-01 2005-03-11 삼성전자주식회사 Code reuse method and apparatus in CDMA wireless communication system using beam forming by array antenna
WO2004042956A2 (en) * 2002-11-01 2004-05-21 Magnolia Broadband Inc. Processing diversity signals using a delay
AU2003285138A1 (en) 2002-11-04 2004-06-07 Vivato Inc Directed wireless communication
EP1559281B1 (en) * 2002-11-07 2012-04-18 Adaptix, Inc. Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems
US7248877B2 (en) * 2002-11-21 2007-07-24 Bandspeed, Inc. Multiple access wireless communications architecture
US7136655B2 (en) * 2002-11-21 2006-11-14 Bandspeed, Inc. Method and apparatus for coverage and throughput enhancement in a wireless communication system
US7512404B2 (en) * 2002-11-21 2009-03-31 Bandspeed, Inc. Method and apparatus for sector channelization and polarization for reduced interference in wireless networks
US7277730B2 (en) * 2002-12-26 2007-10-02 Nokia Corporation Method of allocating radio resources in telecommunication system, and telecommunication system
US6894993B2 (en) * 2002-12-27 2005-05-17 Arraycomm, Inc. Detection and correction of channel swap in spatial division multiple access systems
US7272456B2 (en) * 2003-01-24 2007-09-18 Rockwell Automation Technologies, Inc. Position based machine control in an industrial automation environment
US20040166881A1 (en) * 2003-02-06 2004-08-26 Farchmin David Walter Phased array wireless location method and apparatus
US7043316B2 (en) * 2003-02-14 2006-05-09 Rockwell Automation Technologies Inc. Location based programming and data management in an automated environment
US8185075B2 (en) * 2003-03-17 2012-05-22 Broadcom Corporation System and method for channel bonding in multiple antenna communication systems
US7983355B2 (en) * 2003-07-09 2011-07-19 Broadcom Corporation System and method for RF signal combining and adaptive bit loading for data rate maximization in multi-antenna communication systems
US7539274B2 (en) * 2003-05-01 2009-05-26 Broadcom Corporation Weight generation method for multi-antenna communication systems utilizing RF-based and baseband signal weighting and combining
US7822140B2 (en) * 2003-03-17 2010-10-26 Broadcom Corporation Multi-antenna communication systems utilizing RF-based and baseband signal weighting and combining
US8422380B2 (en) 2003-03-26 2013-04-16 Sharp Laboratories Of America, Inc. Dynamically reconfigurable wired network
US20040192218A1 (en) * 2003-03-31 2004-09-30 Oprea Alexandru M. System and method for channel data transmission in wireless communication systems
US7327795B2 (en) * 2003-03-31 2008-02-05 Vecima Networks Inc. System and method for wireless communication systems
US7418067B1 (en) 2003-04-14 2008-08-26 Magnolia Broadband Inc. Processing diversity signals at a mobile device using phase adjustments
US8391322B2 (en) * 2003-07-09 2013-03-05 Broadcom Corporation Method and system for single weight (SW) antenna system for spatial multiplexing (SM) MIMO system for WCDMA/HSDPA
ATE487291T1 (en) * 2003-08-27 2010-11-15 Wavion Ltd WIFI CAPACITY EXPANSION BY USING SDM
US20050071498A1 (en) * 2003-09-30 2005-03-31 Farchmin David W. Wireless location based automated components
KR100580840B1 (en) * 2003-10-09 2006-05-16 한국전자통신연구원 Data communication method of multi input multi output system
US9585023B2 (en) * 2003-10-30 2017-02-28 Qualcomm Incorporated Layered reuse for a wireless communication system
US8526963B2 (en) * 2003-10-30 2013-09-03 Qualcomm Incorporated Restrictive reuse for a wireless communication system
US7437135B2 (en) 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US7298805B2 (en) 2003-11-21 2007-11-20 Qualcomm Incorporated Multi-antenna transmission for spatial division multiple access
US20050111427A1 (en) * 2003-11-21 2005-05-26 Qinghua Li SDMA training and operation
US7443818B2 (en) * 2003-12-15 2008-10-28 Intel Corporation Method, apparatus and system of multiple-input-multiple-output wireless communication
US7430430B2 (en) * 2003-12-16 2008-09-30 Magnolia Broadband Inc. Adjusting a signal at a diversity system
AU2003290488B2 (en) * 2003-12-22 2009-04-09 Telefonaktiebolaget Lm Ericsson (Publ) A measurement method for spatial scheduling
US8199723B2 (en) * 2003-12-23 2012-06-12 Intel Corporation Parallel wireless communication apparatus, method, and system
US7206550B2 (en) 2003-12-29 2007-04-17 Intel Corporation Antenna subsystem calibration apparatus and methods in spatial-division multiple-access systems
US8369790B2 (en) 2003-12-30 2013-02-05 Intel Corporation Communication overhead reduction apparatus, systems, and methods
US7400692B2 (en) * 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
US7272359B2 (en) * 2004-01-26 2007-09-18 Magnolia Broadband Inc. Communicating signals according to a quality indicator using multiple antenna elements
JP3923050B2 (en) * 2004-01-30 2007-05-30 松下電器産業株式会社 Transmission / reception apparatus and transmission / reception method
CN1922789B (en) * 2004-01-30 2011-09-07 拉瓦尔大学 Multi-user adaptive array receiver and method
US7251535B2 (en) * 2004-02-06 2007-07-31 Rockwell Automation Technologies, Inc. Location based diagnostics method and apparatus
US8645569B2 (en) * 2004-03-12 2014-02-04 Rockwell Automation Technologies, Inc. Juxtaposition based machine addressing
EP1578158A1 (en) * 2004-03-16 2005-09-21 Siemens Mobile Communications S.p.A. Method and system to monitor critic events in digital mobile radio networks
US7289481B2 (en) 2004-03-24 2007-10-30 Wavion Ltd. WLAN capacity enhancement by contention resolution
US20050228528A1 (en) * 2004-04-01 2005-10-13 Farchmin David W Location based material handling and processing
US7257088B2 (en) * 2004-05-11 2007-08-14 3Com Corporation SDMA system using MU-SIMO for the uplink and MU-MISO for the downlink
US8059589B2 (en) * 2004-06-09 2011-11-15 Qualcomm Incorporated Dynamic restrictive reuse scheduler
US7263335B2 (en) * 2004-07-19 2007-08-28 Purewave Networks, Inc. Multi-connection, non-simultaneous frequency diversity in radio communication systems
US7460839B2 (en) 2004-07-19 2008-12-02 Purewave Networks, Inc. Non-simultaneous frequency diversity in radio communication systems
US8032145B2 (en) * 2004-07-23 2011-10-04 Qualcomm Incorporated Restrictive reuse set management algorithm for equal grade of service on FL transmission
US7558591B2 (en) * 2004-10-12 2009-07-07 Magnolia Broadband Inc. Determining a power control group boundary of a power control group
US7515877B2 (en) * 2004-11-04 2009-04-07 Magnolia Broadband Inc. Communicating signals according to a quality indicator and a time boundary indicator
US7573851B2 (en) 2004-12-07 2009-08-11 Adaptix, Inc. Method and system for switching antenna and channel assignments in broadband wireless networks
US7548752B2 (en) * 2004-12-22 2009-06-16 Qualcomm Incorporated Feedback to support restrictive reuse
GB2438347B8 (en) 2005-02-25 2009-04-08 Data Fusion Corp Mitigating interference in a signal
US7548764B2 (en) * 2005-03-04 2009-06-16 Cisco Technology, Inc. Method and system for generating multiple radiation patterns using transform matrix
US7826516B2 (en) 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
KR101049440B1 (en) * 2005-04-13 2011-07-15 연세대학교 산학협력단 Spatial Division Multiplexed Symbol Detection Apparatus and Method
CA2504989C (en) * 2005-04-22 2013-03-12 Gotohti.Com Inc. Stepped pump foam dispenser
US7362268B2 (en) * 2005-05-11 2008-04-22 Qualcomm Inc Method for detecting navigation beacon signals using two antennas or equivalent thereof
US8126159B2 (en) * 2005-05-17 2012-02-28 Continental Automotive Gmbh System and method for creating personalized sound zones
US7616930B2 (en) * 2005-05-24 2009-11-10 Magnolia Broadband Inc. Determining a phase adjustment in accordance with power trends
US20060267983A1 (en) * 2005-05-24 2006-11-30 Magnolia Broadband Inc. Modifying a signal by adjusting the phase and amplitude of the signal
US7783267B1 (en) 2005-06-23 2010-08-24 Magnolia Broadband Inc. Modifying a signal in response to quality indicator availability
US7633905B1 (en) 2005-09-02 2009-12-15 Magnolia Broadband Inc. Calibrating a transmit diversity communication device
US7835702B1 (en) 2005-09-15 2010-11-16 Magnolia Broadband Inc. Calculating a diversity parameter adjustment according to previously applied diversity parameter adjustments
US7746946B2 (en) * 2005-10-10 2010-06-29 Magnolia Broadband Inc. Performing a scan of diversity parameter differences
US7630445B1 (en) 2005-10-25 2009-12-08 Magnolia Broadband Inc. Establishing slot boundaries of slots of a diversity control feedback signal
US7796717B2 (en) * 2005-11-02 2010-09-14 Magnolia Brandband Inc. Modifying a signal according to a diversity parameter adjustment
US7965987B2 (en) * 2005-11-03 2011-06-21 Magnolia Broadband Inc. Amplifying a transmit signal using a fractional power amplifier
EP3010167B1 (en) 2006-03-27 2017-07-05 Nielsen Media Research, Inc. Methods and systems to meter media content presented on a wireless communication device
US8300798B1 (en) 2006-04-03 2012-10-30 Wai Wu Intelligent communication routing system and method
US8260252B2 (en) 2006-10-02 2012-09-04 The Nielsen Company (Us), Llc Method and apparatus for collecting information about portable device usage
US8014726B1 (en) 2006-10-02 2011-09-06 The Nielsen Company (U.S.), Llc Method and system for collecting wireless information transparently and non-intrusively
US7949069B2 (en) * 2006-10-26 2011-05-24 Magnolia Broadband Inc. Method, system and apparatus for applying hybrid ARQ to the control of transmit diversity
US8150441B2 (en) 2006-11-06 2012-04-03 Magnolia Broadband Inc. Modifying a signal by controlling transmit diversity parameters
CN101202725A (en) * 2006-12-11 2008-06-18 昂达博思公司 Auto frequency offset compensation in TDD wireless OFDM communication system
US8199735B2 (en) 2006-12-12 2012-06-12 Google Inc. Method, system and apparatus for the control of transmit diversity
US7663545B2 (en) * 2006-12-26 2010-02-16 Magnolia Broadband Inc. Method, system and apparatus for determining antenna weighting for transmit diversity
US8027374B2 (en) * 2006-12-27 2011-09-27 Magnolia Broadband Inc. Method, system and apparatus for transmit diversity control
US20080160990A1 (en) * 2006-12-29 2008-07-03 Yair Karmi System, method and apparatus for identification of power control using reverse rate indication
US20080165741A1 (en) * 2007-01-05 2008-07-10 Industrial Technology Research Institute Methods for interference measurement and prediction
US7869535B2 (en) * 2007-02-28 2011-01-11 Magnolia Broadband Inc. Method, system and apparatus for phase control of transmit diversity signals
US20080227414A1 (en) 2007-03-01 2008-09-18 Yair Karmi System, method and apparatus for transmit diversity control based on variations in propagation path
US7991365B2 (en) * 2007-03-01 2011-08-02 Magnolia Broadband Inc. Method, system and apparatus for estimation of propagation path variability of a transmit diversity channel
US20080221968A1 (en) * 2007-03-07 2008-09-11 Tamara Gaffney Method and system for interacting with users of portable devices
US8699968B2 (en) 2007-03-14 2014-04-15 Google Inc. Using multiple and a single feedback for UE uplink beamforming in soft handoff
US8032091B2 (en) 2007-03-14 2011-10-04 Magnolia Broadband Inc. Method, apparatus and system for providing transmit diversity feedback during soft handoff
US8750811B2 (en) * 2007-03-14 2014-06-10 Google Inc. Method, apparatus and system for phase difference adjustment in transmit diversity
ATE509497T1 (en) * 2007-03-14 2011-05-15 Magnolia Broadband Inc METHOD, APPARATUS AND SYSTEM FOR PROVIDING TRANSMISSION DIVERSITY FEEDBACK
US8036603B2 (en) 2007-03-15 2011-10-11 Magnolia Broadband Inc. Method, apparatus and system for providing feedback to a transmit diversity device
US8014734B2 (en) * 2007-03-15 2011-09-06 Magnolia Broadband Inc. Method, apparatus and system for controlling a transmit diversity device
US8046017B2 (en) * 2007-03-15 2011-10-25 Magnolia Broadband Inc. Method and apparatus for random access channel probe initialization using transmit diversity
US8145799B2 (en) * 2007-05-18 2012-03-27 General Electric Company Systems and methods for changing parameters of a controller
US8408982B2 (en) 2007-05-24 2013-04-02 Pillar Vision, Inc. Method and apparatus for video game simulations using motion capture
US8321556B1 (en) 2007-07-09 2012-11-27 The Nielsen Company (Us), Llc Method and system for collecting data on a wireless device
FI119573B (en) * 2007-07-11 2008-12-31 7Signal Oy A method for monitoring and locating a signal source in a radio network
JP4998169B2 (en) * 2007-09-20 2012-08-15 富士通株式会社 Wireless communication apparatus and propagation environment index dispersion suppression method
JP5104174B2 (en) * 2007-10-01 2012-12-19 富士通株式会社 Washing and drying apparatus and washing and drying method
US20090093222A1 (en) * 2007-10-03 2009-04-09 Qualcomm Incorporated Calibration and beamforming in a wireless communication system
US20090150217A1 (en) * 2007-11-02 2009-06-11 Luff Robert A Methods and apparatus to perform consumer surveys
US8032092B2 (en) * 2007-12-06 2011-10-04 Magnolia Broadband Inc. System, apparatus and method for introducing antenna pattern variability
US7782755B2 (en) * 2007-12-21 2010-08-24 Motorola, Inc. Method for uplink collaborative SDMA user pairing in WIMAX
US20100046421A1 (en) * 2007-12-31 2010-02-25 David Adams Multibeam Antenna System
US8503991B2 (en) * 2008-04-03 2013-08-06 The Nielsen Company (Us), Llc Methods and apparatus to monitor mobile devices
CN101599801B (en) * 2008-06-06 2012-02-22 富士通株式会社 Filter coefficient regulator and method thereof
WO2010003450A1 (en) * 2008-07-07 2010-01-14 Telefonaktiebolaget L M Ericsson (Publ) Improved signal level measurement for mobile positioning
GB0813417D0 (en) 2008-07-22 2008-08-27 M4S Nv Apparatus and method for reducing self-interference in a radio system
DE602009000566D1 (en) * 2008-09-04 2011-02-24 Alcatel Lucent A method and wireless communication network for communicating between a high-speed vehicle and a base station
US8704712B2 (en) * 2008-09-11 2014-04-22 Indra Australia Pty Limited System and method of generating a radio frequency signal
US8289910B2 (en) 2009-04-24 2012-10-16 Kathrein-Werke Kg Device for receiving and transmitting mobile telephony signals with multiple transmit-receive branches
DE102009018925A1 (en) * 2009-04-28 2010-11-04 Astrium Gmbh Method and arrangement for measuring the directional characteristic of an antenna to be tested
AU2009345651B2 (en) 2009-05-08 2016-05-12 Arbitron Mobile Oy System and method for behavioural and contextual data analytics
US8442457B2 (en) 2009-09-08 2013-05-14 Google Inc. System and method for adaptive beamforming for specific absorption rate control
US9806789B2 (en) * 2010-04-06 2017-10-31 Samsung Electronics Co., Ltd. Apparatus and method for spatial division duplex (SDD) for millimeter wave communication system
US8958757B2 (en) 2010-05-10 2015-02-17 Google Inc. System, method and apparatus for mobile transmit diversity using symmetric phase difference
WO2011150266A1 (en) 2010-05-26 2011-12-01 Magnolia Broadband Inc. Method and apparatus for random access channel probe initialization using transmit diversity
AU2010355789B2 (en) 2010-06-24 2016-05-12 Arbitron Mobile Oy Network server arrangement for processing non-parametric, multi-dimensional, spatial and temporal human behavior or technical observations measured pervasively, and related method for the same
US9048913B2 (en) 2010-07-06 2015-06-02 Google Inc. Method and apparatus for adaptive control of transmit diversity to provide operating power reduction
US9538493B2 (en) 2010-08-23 2017-01-03 Finetrak, Llc Locating a mobile station and applications therefor
US8340685B2 (en) 2010-08-25 2012-12-25 The Nielsen Company (Us), Llc Methods, systems and apparatus to generate market segmentation data with anonymous location data
EP2636165B1 (en) * 2010-11-03 2015-04-01 Telefonaktiebolaget L M Ericsson (publ) Self-interference suppression in full-duplex mimo relays
US8849222B2 (en) 2011-02-16 2014-09-30 Google Inc. Method and device for phase adjustment based on closed-loop diversity feedback
US20120274499A1 (en) * 2011-04-29 2012-11-01 Spatial Digital Systems Radar imaging via spatial spectrum measurement and MIMO waveforms
US8868069B2 (en) 2012-05-29 2014-10-21 Sierra Wireless, Inc. Airliner-mounted cellular base station
US8948457B2 (en) 2013-04-03 2015-02-03 Pillar Vision, Inc. True space tracking of axisymmetric object flight using diameter measurement
US10083459B2 (en) 2014-02-11 2018-09-25 The Nielsen Company (Us), Llc Methods and apparatus to generate a media rank
JP6564867B2 (en) * 2015-02-02 2019-08-21 テレフオンアクチーボラゲット エルエム エリクソン（パブル） Use of antenna beam information
WO2017050930A1 (en) 2015-09-23 2017-03-30 Université Du Luxembourg Method and device for symbol-level multiuser precoding
US10085120B1 (en) * 2017-11-15 2018-09-25 Bae Systems Information And Electronic Systems Integration Inc. Copy aided geolocation
JP2021517398A (en) 2018-03-09 2021-07-15 アイソトロピック システムズ リミテッドＩｓｏｔｒｏｐｉｃ Ｓｙｓｔｅｍｓ Ｌｔｄ． How to Dynamically Reduce Interference in Antenna Beam Tracking Systems
US10484063B1 (en) 2018-05-04 2019-11-19 At&T Intellectual Property I, L.P. Transmission of beamforming weight coefficients from digital baseband unit to remote radio unit
US10367568B1 (en) 2018-08-08 2019-07-30 At&T Intellectual Property I, L.P. Determining precoding coefficients for fronthaul links in a cloud radio access network
US11533600B2 (en) 2019-05-07 2022-12-20 West Pond Technologies, LLC Methods and systems for detecting and distributing encoded alert data
CN112134712B (en) * 2019-06-25 2021-12-31 华为技术有限公司 Signal processing method and related equipment
RU2757647C1 (en) * 2020-12-25 2021-10-19 Николай Александрович Кузнецов Smart module
US20240019535A1 (en) * 2022-07-13 2024-01-18 Nxp B.V. Radar system

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665468A (en) * 1970-02-25 1972-05-23 Air Land Systems Co Radio communication system
US3704465A (en) * 1970-08-28 1972-11-28 Hazeltine Corp Angular position determining system compensated for doppler
US3798645A (en) * 1970-08-28 1974-03-19 Hazeltine Corp Angular position determining systems using time scanned arrays
DE2203442C2 (en) * 1972-01-25 1974-04-11 Standard Elektrik Lorenz Ag Radio navigation system with cyclical pulse radiation through a line of emitters for determining azimuth or elevation
US3946385A (en) * 1975-01-20 1976-03-23 The United States Of America As Represented By The Secretary Of The Department Of Transportation Interferometric navigation and guidance system
US4085319A (en) * 1977-02-01 1978-04-18 The United States Of America As Represented By The Secretary Of The Army Spatial-multiplex, spatial-diversity optical communication scheme
US4128740A (en) * 1977-02-14 1978-12-05 Motorola, Inc. Antenna array for a cellular RF communications system
US4434505A (en) * 1982-12-01 1984-02-28 The United States Of America As Represented By The Secretary Of The Army Interference cancelling system for a mobile subscriber access communications system
US4475010A (en) * 1983-05-05 1984-10-02 At&T Bell Laboratories High density cellular mobile radio communications
GB2147760B (en) * 1983-10-07 1987-04-15 Racal Res Ltd Direction finding systems
US4796291A (en) * 1983-10-28 1989-01-03 Nec Corporation Mobile radio communications system
US4639914A (en) * 1984-12-06 1987-01-27 At&T Bell Laboratories Wireless PBX/LAN system with optimum combining
US4829554A (en) * 1985-01-31 1989-05-09 Harris Corporation Cellular mobile telephone system and method
US4972151A (en) * 1985-10-01 1990-11-20 Hughes Aircraft Company Steered-beam satellite communication system
US4750147A (en) * 1985-11-06 1988-06-07 Stanford University Method for estimating signal source locations and signal parameters using an array of signal sensor pairs
US4965732A (en) * 1985-11-06 1990-10-23 The Board Of Trustees Of The Leland Stanford Junior University Methods and arrangements for signal reception and parameter estimation
US4742356A (en) * 1985-12-09 1988-05-03 Mcdonnell Douglas Corporation Method and apparatus for determining remote object orientation and position
US4737794A (en) * 1985-12-09 1988-04-12 Mcdonnell Douglas Corporation Method and apparatus for determining remote object orientation and position
US4728959A (en) * 1986-08-08 1988-03-01 Ventana Sciences Inc. Direction finding localization system
US4733402A (en) * 1987-04-23 1988-03-22 Signatron, Inc. Adaptive filter equalizer systems
JPH0622345B2 (en) * 1988-01-14 1994-03-23 東京電力株式会社 Mobile communication system
JPH0616603B2 (en) * 1988-01-14 1994-03-02 東京電力株式会社 Mobile communication system
EP0328100B1 (en) * 1988-02-10 1995-06-21 Nec Corporation High throughput communication method and system for a digital mobile station when crossing a zone boundary during a session
US4837800A (en) * 1988-03-18 1989-06-06 Motorola, Inc. Cellular data telephone system and cellular data telephone therefor
US4910794A (en) * 1988-08-04 1990-03-20 Norand Corporation Mobile radio data communication system and method
US4965849A (en) * 1988-09-29 1990-10-23 Sony Corporation Cordless telephone
US4965850A (en) * 1989-01-23 1990-10-23 Schloemer Jerry R System for and method of assigning frequencies in a communications system with no central control of frequency allocation
US5093668A (en) * 1989-06-29 1992-03-03 Ball Corporation Multiple-beam array antenna
US5052799A (en) * 1989-07-17 1991-10-01 Thurman Sasser Object orienting systems and systems and processes relating thereto
GB2237706A (en) * 1989-11-03 1991-05-08 Racal Res Ltd Radio communications link with diversity
US5159593A (en) * 1990-07-02 1992-10-27 Motorola, Inc. Channel acquistion and handoff method and apparatus for a TDMA communication system
US5515378A (en) * 1991-12-12 1996-05-07 Arraycomm, Inc. Spatial division multiple access wireless communication systems
US5260968A (en) * 1992-06-23 1993-11-09 The Regents Of The University Of California Method and apparatus for multiplexing communications signals through blind adaptive spatial filtering
US5471647A (en) * 1993-04-14 1995-11-28 The Leland Stanford Junior University Method for minimizing cross-talk in adaptive transmission antennas

Also Published As

Publication number Publication date
EP0926916B1 (en) 2007-08-15
US5515378A (en) 1996-05-07
WO1993012590A1 (en) 1993-06-24
DE69229876D1 (en) 1999-09-30
ATE370623T1 (en) 2007-09-15
ES2137197T3 (en) 1999-12-16
JP3266258B2 (en) 2002-03-18
DE69229876T2 (en) 1999-12-30
ES2292223T3 (en) 2008-03-01
EP1926336A3 (en) 2008-10-15
DE69233707T2 (en) 2008-05-21
EP0926916A3 (en) 1999-07-28
EP1926336A2 (en) 2008-05-28
FI942771A (en) 1994-06-10
CA2125571C (en) 2000-10-31
ATE183865T1 (en) 1999-09-15
AU3145493A (en) 1993-07-19
ATE512559T1 (en) 2011-06-15
EP0616742A1 (en) 1994-09-28
AU670766B2 (en) 1996-08-01
EP0926916A2 (en) 1999-06-30
DE69233707D1 (en) 2007-09-27
US5642353A (en) 1997-06-24
FI942771A0 (en) 1994-06-10
EP0616742B1 (en) 1999-08-25
KR940704090A (en) 1994-12-12
JPH07505017A (en) 1995-06-01
EP1926336B1 (en) 2011-06-08
KR100292451B1 (en) 2001-09-17

Similar Documents

Publication Publication Date Title
CA2125571A1 (en) Spatial Division Multiple Access Wireless Communication Systems
AU6948400A (en) Method and apparatus for beamforming in a wireless communication system
EP1615353A3 (en) Wireless telephone distribution system with time and space diversity transmission
WO2002032000A8 (en) Method and apparatus employing a remote wireless repeater for calibrating a wireless base station having an adaptive antenna array
WO1997002678A3 (en) Communication system with sliding frequency, and transceiver for the system
BRPI9715351A2 (en)
CA2199542A1 (en) Methods and Apparatus for High Data Rate Transmission in Narrow Band Mobile Radio Channels
CA2302491A1 (en) Apparatus and method for transmitting signals in a communication system
WO1997013386A3 (en) Distributed indoor digital multiple-access cellular telephone system
EP0891048A3 (en) Radio base station receiving data transmission system for uplink site diversity in a mobile communication system
CA2125969A1 (en) Spread-Spectrum Data Publishing System
EP0620658A4 (en) Code division multiplex access mobile communication system.
CA2211925A1 (en) Downlink transmission power control scheme for mobile communication system using site diversity
WO2003021819A1 (en) Radio communication system, terminal station and base station of radio communication system, and transmission power control method of radio communication system
CA2139234A1 (en) Use of diversity transmission to relax adjacent channel requirements in mobile telephone systems
CA2433017A1 (en) Apparatus and method for controlling power of a forward common power control channel in a mobile communication system
EP0918402A3 (en) Transmission power control in a CDMA system
DE3061739D1 (en) Radio network
WO1995005722B1 (en) Radio distribution port systems
WO1995005722A1 (en) Radio distribution port systems

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry
MKEX Expiry

Effective date: 20121124