WO2001018993A1 - Transmission using an antenna array in a cdma communication system - Google Patents
Transmission using an antenna array in a cdma communication system Download PDFInfo
- Publication number
- WO2001018993A1 WO2001018993A1 PCT/US2000/022559 US0022559W WO0118993A1 WO 2001018993 A1 WO2001018993 A1 WO 2001018993A1 US 0022559 W US0022559 W US 0022559W WO 0118993 A1 WO0118993 A1 WO 0118993A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- pilot
- data signal
- pilot signal
- weighting
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details 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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
-
- 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
-
- 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
-
- 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
- H04B7/06—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
- H04B7/0619—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 using feedback from receiving side
-
- 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
- H04B7/0619—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 using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- 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
- H04B7/0678—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 using different spreading codes between antennas
-
- 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
- H04B7/0848—Joint weighting
- H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
-
- 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
- H04B7/0848—Joint weighting
- H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
-
- 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
- H04B7/0891—Space-time diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0003—Code application, i.e. aspects relating to how codes are applied to form multiplexed channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
-
- 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
Definitions
- uplink communications 34-38 to the base station 20 are referred to as uplink communications.
- Shown in Figure 2 is a simplified CDMA transmitter and receiver.
- a base station 20 will communicate
- a receiver filters each transmitted
- Each pilot signal's weight is adaptively adjusted in part on a signal quality of the
- Figure 6 is the data signal receiving circuit of the invention.
- Figure 12 is an embodiment of the pilot signal receiving circuit where the
- Figure 17 is the data receiving circuit used with the transmitter of Figure 14.
- the transmitter has an array of antennas 48-52,
- correlator is used to despread each pilot signal using a replica of the corresponding
- Figure 6 depicts a data signal receiving circuit using the weights determined
- each RAKE 82-86 utilizes a replica of the corresponding pilot's pseudo random chip code sequence, P,-P N . Delayed versions of each pilot signal are
- each RAKE's combiner 208-212 may be weighted prior to mixing by the mixers 214-230 by the amount of the corresponding
- the data signal recovery circuit used with the embodiment of Figure 12 is
- receiver will receive the pilot signals transmitted by the array. Using the pilot signal
- the weights received by the target receiver are applied to
Abstract
Description
Claims
Priority Applications (17)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00955636A EP1210777B1 (en) | 1999-09-10 | 2000-08-17 | Transmission using an antenna array in a cdma communication system |
DE60014935T DE60014935T2 (en) | 1999-09-10 | 2000-08-17 | TRANSMISSION IN A CDMA COMMUNICATION SYSTEM USING AN ANTENNA ARRAY |
DK00955636T DK1210777T3 (en) | 1999-09-10 | 2000-08-17 | Transmission using an antenna array in a CDMA communication system |
AT00955636T ATE279818T1 (en) | 1999-09-10 | 2000-08-17 | TRANSMISSION IN A CDMA COMMUNICATIONS SYSTEM USING AN ANTENNA ARRAY |
BR0013889-4A BR0013889A (en) | 1999-09-10 | 2000-08-17 | Method for use in a spread spectrum communication system that has a plurality of transmission antennas, and, spread spectrum communication system |
CA002383178A CA2383178C (en) | 1999-09-10 | 2000-08-17 | Transmission using an antenna array in a cdma communication system |
JP2001522694A JP3767893B2 (en) | 1999-09-10 | 2000-08-17 | Transmission using antenna array in CDMA communication system |
IL14841200A IL148412A0 (en) | 1999-09-10 | 2000-08-17 | Transmission using an antenna in a cdma communication system |
AU67806/00A AU761473B2 (en) | 1999-09-10 | 2000-08-17 | Transmission using an antenna array in a CDMA communication system |
MXPA02002522A MXPA02002522A (en) | 1999-09-10 | 2000-08-17 | Transmission using an antenna array in a cdma communication system. |
DE1210777T DE1210777T1 (en) | 1999-09-10 | 2000-08-17 | TRANSMISSION IN A CDMA COMMUNICATION SYSTEM USING AN ANTENNA ARRAY |
IL148412A IL148412A (en) | 1999-09-10 | 2002-02-27 | Transmission using an antenna in a cdma communication system |
NO20021177A NO326753B1 (en) | 1999-09-10 | 2002-03-08 | Transmission using an antenna group in a CDMA communication system |
HK02106955.8A HK1045611B (en) | 1999-09-10 | 2002-09-24 | Transmission using an antenna array in a cdma communication system |
IL181375A IL181375A (en) | 1999-09-10 | 2007-02-15 | Transmission using an antenna array in a cdma communication system |
NO20084277A NO20084277L (en) | 1999-09-10 | 2008-10-13 | Device and method for determining from two base station pilot signals a weight for a data signal and to signal a preferred weight to the base station |
IL207566A IL207566A (en) | 1999-09-10 | 2010-08-12 | Transmission using an antenna array in a cdma communication system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/394,452 | 1999-09-10 | ||
US09/394,452 US6115406A (en) | 1999-09-10 | 1999-09-10 | Transmission using an antenna array in a CDMA communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001018993A1 true WO2001018993A1 (en) | 2001-03-15 |
Family
ID=23559015
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/022559 WO2001018993A1 (en) | 1999-09-10 | 2000-08-17 | Transmission using an antenna array in a cdma communication system |
PCT/US2000/024875 WO2001018986A1 (en) | 1999-09-10 | 2000-09-11 | Interference cancellation in a spread spectrum communication system |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/024875 WO2001018986A1 (en) | 1999-09-10 | 2000-09-11 | Interference cancellation in a spread spectrum communication system |
Country Status (18)
Country | Link |
---|---|
US (8) | US6115406A (en) |
EP (7) | EP1447924B1 (en) |
JP (5) | JP3767893B2 (en) |
KR (1) | KR100451807B1 (en) |
CN (5) | CN1897483B (en) |
AT (4) | ATE465561T1 (en) |
AU (2) | AU761473B2 (en) |
BR (1) | BR0013889A (en) |
CA (3) | CA2498521C (en) |
DE (6) | DE60044265D1 (en) |
DK (4) | DK1447924T3 (en) |
ES (4) | ES2345332T3 (en) |
HK (7) | HK1045613B (en) |
IL (4) | IL148412A0 (en) |
MX (1) | MXPA02002522A (en) |
NO (4) | NO327636B1 (en) |
PT (1) | PT1210777E (en) |
WO (2) | WO2001018993A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100424537B1 (en) * | 2001-04-18 | 2004-03-27 | 엘지전자 주식회사 | Method for beamforming using smart antenna array |
Families Citing this family (83)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6792290B2 (en) * | 1998-09-21 | 2004-09-14 | Ipr Licensing, Inc. | Method and apparatus for performing directional re-scan of an adaptive antenna |
US6128330A (en) | 1998-11-24 | 2000-10-03 | Linex Technology, Inc. | Efficient shadow reduction antenna system for spread spectrum |
US6597669B1 (en) * | 1999-03-16 | 2003-07-22 | Northrop Grumman Corporation | Queue segmentation and addressing method and apparatus for a cell switch in a processing communications satellite |
US6765969B1 (en) * | 1999-09-01 | 2004-07-20 | Motorola, Inc. | Method and device for multi-user channel estimation |
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 |
US6597730B1 (en) * | 1999-11-03 | 2003-07-22 | Northrop Grumman Corporation | Satellite communication array transceiver |
US20010033600A1 (en) * | 2000-02-28 | 2001-10-25 | Golden Bridge Technology Inc. | Sectorized smart antenna system and method |
US7965794B2 (en) * | 2000-05-05 | 2011-06-21 | Greenwich Technologies Associates | Method and apparatus for broadcasting with spatially diverse signals |
US6434366B1 (en) * | 2000-05-31 | 2002-08-13 | Motorola, Inc. | Method and system for estimating adaptive array weights used to transmit a signal to a receiver in a wireless communication system |
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 |
US6870825B1 (en) * | 2000-09-06 | 2005-03-22 | Lucent Technologies Inc. | Pilot signal transmission in a multi-transmit antenna wireless communication system |
FR2814014B1 (en) * | 2000-09-14 | 2002-10-11 | Mitsubishi Electric Inf Tech | MULTI-USER DETECTION METHOD |
AU766372B2 (en) * | 2000-10-11 | 2003-10-16 | Samsung Electronics Co., Ltd. | Apparatus and method for controlling transmit antenna array for physical downlink shared channel in a mobile communication system |
US20020110108A1 (en) * | 2000-12-07 | 2002-08-15 | Younglok Kim | Simple block space time transmit diversity using multiple spreading codes |
JP2002198875A (en) * | 2000-12-22 | 2002-07-12 | Nippon Soken Inc | Communication terminal of cdma system |
US20020131386A1 (en) * | 2001-01-26 | 2002-09-19 | Docomo Communications Laboratories Usa, Inc. | Mobility prediction in wireless, mobile access digital networks |
GB2399998B (en) * | 2001-02-01 | 2005-04-13 | Fujitsu Ltd | Communications systems |
US6810236B2 (en) * | 2001-05-14 | 2004-10-26 | Interdigital Technology Corporation | Dynamic channel quality measurement procedure for adaptive modulation and coding techniques |
US7170924B2 (en) * | 2001-05-17 | 2007-01-30 | Qualcomm, Inc. | System and method for adjusting combiner weights using an adaptive algorithm in wireless communications system |
US6990137B2 (en) * | 2001-05-17 | 2006-01-24 | Qualcomm, Incorporated | System and method for received signal prediction in wireless communications systems |
US7548506B2 (en) | 2001-10-17 | 2009-06-16 | Nortel Networks Limited | System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design |
US7218684B2 (en) * | 2001-11-02 | 2007-05-15 | Interdigital Technology Corporation | Method and system for code reuse and capacity enhancement using null steering |
US7099380B1 (en) | 2001-11-16 | 2006-08-29 | Marvell International Ltd. | Apparatus for antenna diversity for wireless communication and method thereof |
US7133461B2 (en) * | 2001-12-14 | 2006-11-07 | Motorola, Inc. | Stream transmission method and device |
JP3642483B2 (en) * | 2002-01-09 | 2005-04-27 | 日本電気株式会社 | Wireless mobile station and wireless communication system including the same |
US20030171834A1 (en) * | 2002-03-07 | 2003-09-11 | Silvester Kelan C. | Method and apparatus for connecting a portable media player wirelessly to an automobile entertainment system |
US8194770B2 (en) | 2002-08-27 | 2012-06-05 | Qualcomm Incorporated | Coded MIMO systems with selective channel inversion applied per eigenmode |
US7292622B2 (en) * | 2002-10-08 | 2007-11-06 | Freescale Semiconductor, Inc. | Method and apparatus for raking in a wireless network |
US8218609B2 (en) | 2002-10-25 | 2012-07-10 | Qualcomm Incorporated | Closed-loop rate control for a multi-channel communication system |
US8208364B2 (en) | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
UA89611C2 (en) * | 2002-10-25 | 2010-02-25 | Квелкомм Инкорпорейтед | A method and a device for reception /transmission of signalling information in a wireless communication system (embodiments) |
US7002900B2 (en) | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
US8320301B2 (en) | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
US7986742B2 (en) | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
US8170513B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Data detection and demodulation for wireless communication systems |
US20040081131A1 (en) | 2002-10-25 | 2004-04-29 | Walton Jay Rod | OFDM communication system with multiple OFDM symbol sizes |
US8134976B2 (en) | 2002-10-25 | 2012-03-13 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US8169944B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Random access for wireless multiple-access communication systems |
US8570988B2 (en) | 2002-10-25 | 2013-10-29 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
CN101242214B (en) * | 2002-10-25 | 2012-09-05 | 高通股份有限公司 | Method for generating pilots for MIMO communication systems |
US7324429B2 (en) | 2002-10-25 | 2008-01-29 | Qualcomm, Incorporated | Multi-mode terminal in a wireless MIMO system |
JP4226442B2 (en) * | 2002-11-14 | 2009-02-18 | パナソニック株式会社 | Wireless communication device |
JP3583414B2 (en) * | 2002-11-14 | 2004-11-04 | 松下電器産業株式会社 | CDMA transmitting apparatus and CDMA receiving apparatus |
JP4090331B2 (en) * | 2002-11-20 | 2008-05-28 | 三洋電機株式会社 | Reception method and apparatus |
JP4163971B2 (en) * | 2003-02-06 | 2008-10-08 | 松下電器産業株式会社 | Transmitting apparatus and transmitting method |
US7155177B2 (en) * | 2003-02-10 | 2006-12-26 | Qualcomm Incorporated | Weight prediction for closed-loop mode transmit diversity |
US7301990B2 (en) * | 2003-02-21 | 2007-11-27 | Qualcomm Incorporated | Equalization of multiple signals received for soft handoff in wireless 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 |
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 |
US9473269B2 (en) | 2003-12-01 | 2016-10-18 | Qualcomm Incorporated | Method and apparatus for providing an efficient control channel structure in a wireless communication system |
DE10359268B4 (en) * | 2003-12-17 | 2011-05-19 | Infineon Technologies Ag | Device for generating transmission signals in a mobile radio station by means of a scrambling code generator for preambles and for transmission signals of dedicated physical channels |
BRPI0508417A (en) * | 2004-03-05 | 2007-07-24 | Qualcomm Inc | method and equipment for wireless reception diversity control |
CA2558543A1 (en) * | 2004-03-05 | 2005-09-22 | Qualcomm Incorporated | Multi-antenna receive diversity control in wireless communications |
CN1300949C (en) * | 2004-06-07 | 2007-02-14 | 东南大学 | Parallelling receiving method by chip balancer and rake receiver |
US8503328B2 (en) | 2004-09-01 | 2013-08-06 | Qualcomm Incorporated | Methods and apparatus for transmission of configuration information in a wireless communication network |
US7593493B2 (en) * | 2004-10-06 | 2009-09-22 | Broadcom Corporation | Method and system for pre-equalization in a single weight (SW) single channel (SC) multiple-input multiple-output (MIMO) system |
US8009772B1 (en) | 2004-11-04 | 2011-08-30 | Sandia Corporation | Concurrent signal combining and channel estimation in digital communications |
FR2877776B1 (en) * | 2004-11-05 | 2007-01-26 | Thales Sa | HIGH ENERGY LASER AMPLIFICATION DEVICE WITH HIGH BEAM QUALITY |
JP4625093B2 (en) * | 2005-02-07 | 2011-02-02 | 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) | Transfer rate standard |
US7610025B2 (en) | 2005-03-29 | 2009-10-27 | Qualcomm Incorporated | Antenna array pattern distortion mitigation |
US7466749B2 (en) | 2005-05-12 | 2008-12-16 | Qualcomm Incorporated | Rate selection with margin sharing |
US8358714B2 (en) | 2005-06-16 | 2013-01-22 | Qualcomm Incorporated | Coding and modulation for multiple data streams in a communication system |
KR100981495B1 (en) * | 2005-10-12 | 2010-09-10 | 삼성전자주식회사 | Method and apparatus for transmitting data in a communication system |
US8107549B2 (en) | 2005-11-30 | 2012-01-31 | Qualcomm, Incorporated | Multi-stage receiver for wireless communication |
US20070297497A1 (en) * | 2006-06-21 | 2007-12-27 | Seibert Cristina A | Apparatus And Method For Interference Cancellation |
CN101098218B (en) * | 2006-06-27 | 2011-11-30 | 中兴通讯股份有限公司 | Transmitter and receiver of arbitrary access front signal |
JP2008085921A (en) * | 2006-09-28 | 2008-04-10 | Matsushita Electric Ind Co Ltd | Radio transmission apparatus and radio receiving apparatus |
WO2008126882A1 (en) * | 2007-04-05 | 2008-10-23 | Nec Corporation | Time reference identification method |
WO2008126516A1 (en) | 2007-04-10 | 2008-10-23 | Naoki Suehiro | Transmitting method, transmitting device, receiving method, and receiving device |
WO2009153808A2 (en) * | 2008-06-17 | 2009-12-23 | Centre Of Excellence In Wireless Technology | Methods and systems for interference mitigation |
US8767524B2 (en) * | 2008-08-19 | 2014-07-01 | Qualcomm Incorporated | Training sequences for very high throughput wireless communication |
US8155138B2 (en) * | 2008-08-19 | 2012-04-10 | Qualcomm Incorporated | Training sequences for very high throughput wireless communication |
CN103004273A (en) * | 2010-07-16 | 2013-03-27 | 京瓷株式会社 | Wireless base station and communications control method |
CN102412881B (en) * | 2010-09-26 | 2015-06-17 | 日电(中国)有限公司 | Wireless communication system and beamforming training method applied to wireless communication system |
WO2012104828A1 (en) * | 2011-02-03 | 2012-08-09 | Dsp Group Ltd. | A method and apparatus for hierarchical adaptive filtering |
US10285186B2 (en) | 2012-06-29 | 2019-05-07 | Huawei Technologies Co., Ltd. | System and method for grouping and selecting transmission points |
KR20170113536A (en) | 2014-11-17 | 2017-10-12 | 혁 엠. 권 | Spreading sequence system for full connectivity relay network |
US10601539B2 (en) | 2018-02-02 | 2020-03-24 | J3 Technology LLC | Multiple jamming signal transmit antennas with spatial diversity |
CN108494459B (en) * | 2018-03-02 | 2021-10-26 | Oppo广东移动通信有限公司 | Antenna switching method, device, storage medium and mobile terminal |
RU2688920C1 (en) * | 2018-08-28 | 2019-05-23 | Общество с ограниченной ответственностью "КАСКАД" | Apparatus and method for radio communication based on simo-ofdm technology |
CN111967616A (en) * | 2020-08-18 | 2020-11-20 | 深延科技(北京)有限公司 | Automatic time series regression method and device |
US20230093484A1 (en) * | 2021-09-23 | 2023-03-23 | Apple Inc. | Systems and methods for de-correlating coded signals in dual port transmissions |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0755127A2 (en) * | 1995-07-19 | 1997-01-22 | Nec Corporation | CDMA diversity transmission system |
US5652764A (en) * | 1995-01-17 | 1997-07-29 | Kabushiki Kaisha Toshiba | Radio communication system |
US5812542A (en) * | 1996-03-18 | 1998-09-22 | Motorola, Inc. | Method for determining weighting coefficients in a CDMA radio receiver |
EP0881781A2 (en) * | 1997-05-29 | 1998-12-02 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for transmission diversity in CDMA systems |
Family Cites Families (107)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3662268A (en) * | 1970-11-17 | 1972-05-09 | Bell Telephone Labor Inc | Diversity communication system using distinct spectral arrangements for each branch |
US4901307A (en) * | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
US4736460A (en) * | 1986-11-10 | 1988-04-05 | Kenneth Rilling | Multipath reduction system |
JPH0758971B2 (en) * | 1989-09-07 | 1995-06-21 | 株式会社東芝 | Communication control device |
JP2795935B2 (en) | 1989-11-24 | 1998-09-10 | 三菱電機株式会社 | Maximum likelihood sequence estimator |
US5381344A (en) * | 1992-04-06 | 1995-01-10 | Hewlett-Packard Company | Apparatus and method for obtaining a list of numbers of wafers for integrated circuit testing |
US5319677A (en) | 1992-05-12 | 1994-06-07 | Hughes Aircraft Company | Diversity combiner with MLSE for digital cellular radio |
US5331666A (en) | 1992-06-08 | 1994-07-19 | Ericsson Ge Mobile Communications Inc. | Adaptive maximum likelihood demodulator |
US5796779A (en) * | 1992-06-29 | 1998-08-18 | Raytheon Company | Adaptive signal processor for non-stationary environments and method |
US5712868A (en) | 1992-06-30 | 1998-01-27 | Motorola, Inc. | Dual mode communication network |
US5381443A (en) | 1992-10-02 | 1995-01-10 | Motorola Inc. | Method and apparatus for frequency hopping a signalling channel in a communication system |
US5457704A (en) | 1993-05-21 | 1995-10-10 | At&T Ipm Corp. | Post processing method and apparatus for symbol reliability generation |
US5493563A (en) | 1993-07-26 | 1996-02-20 | Motorola, Inc. | Method and apparatus for mobile assisted handoff 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 |
JP3560991B2 (en) | 1993-09-20 | 2004-09-02 | 株式会社東芝 | Adaptive maximum likelihood sequence estimator |
US6483866B1 (en) | 1993-10-12 | 2002-11-19 | Ntt Mobile Communications Network Inc. | Multi-station transmission method and receiver for inverse transforming two pseudo-orthogonal transmission sequences used for metric calculation and base station selection based thereon |
US5790606A (en) | 1994-01-11 | 1998-08-04 | Ericsson Inc. | Joint demodulation using spatial maximum likelihood |
US5559789A (en) * | 1994-01-31 | 1996-09-24 | Matsushita Electric Industrial Co., Ltd. | CDMA/TDD Radio Communication System |
US5455413A (en) | 1994-03-31 | 1995-10-03 | Thomson Consumer Electronics, Inc. | Mechanism for retaining an electronically readable card in an electronic device |
WO1995034140A1 (en) | 1994-06-03 | 1995-12-14 | Motorola, Inc. | Method and apparatus for cancelling interference in signals having undergone multipath |
US5694388A (en) | 1994-06-23 | 1997-12-02 | Ntt Mobile Communications Network Inc. | CDMA demodulator and demodulation method |
US6081566A (en) | 1994-08-02 | 2000-06-27 | Ericsson, Inc. | Method and apparatus for interference rejection with different beams, polarizations, and phase references |
US5680419A (en) | 1994-08-02 | 1997-10-21 | Ericsson Inc. | Method of and apparatus for interference rejection combining in multi-antenna digital cellular communications systems |
US5623511A (en) | 1994-08-30 | 1997-04-22 | Lucent Technologies Inc. | Spread spectrum code pulse position modulated receiver having delay spread compensation |
FI102797B (en) | 1994-10-07 | 1999-02-15 | Nokia Mobile Phones Ltd | A method of signal detection in a receiver of a TDMA mobile communication system, and a receiver implementing the method |
US5574747A (en) * | 1995-01-04 | 1996-11-12 | Interdigital Technology Corporation | Spread spectrum adaptive power control system and method |
EP0762671B1 (en) | 1995-02-27 | 2009-09-09 | NTT DoCoMo, Inc. | High-speed radiocommunication system |
ZA965340B (en) * | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
JP2762965B2 (en) * | 1995-09-04 | 1998-06-11 | 日本電気株式会社 | Base station transmission power control method |
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 |
US5903834A (en) | 1995-10-06 | 1999-05-11 | Telefonaktiebolaget L/M Ericsson | Distributed indoor digital multiple-access cellular telephone system |
WO1997020400A1 (en) * | 1995-11-29 | 1997-06-05 | Ntt Mobile Communications Network Inc. | Diversity receiver and control method therefor |
JP2934185B2 (en) * | 1996-03-15 | 1999-08-16 | 松下電器産業株式会社 | CDMA cellular radio base station apparatus, mobile station apparatus, and transmission method |
US5809020A (en) * | 1996-03-18 | 1998-09-15 | Motorola, Inc. | Method for adaptively adjusting weighting coefficients in a cDMA radio receiver |
US5757791A (en) | 1996-04-18 | 1998-05-26 | American Wireless Technology, Inc. | Multistage linear receiver for DS-CDMA systems |
EP0807989B1 (en) * | 1996-05-17 | 2001-06-27 | Motorola Ltd | Devices for transmitter path weights and methods therefor |
FR2751499B1 (en) * | 1996-07-16 | 1998-08-28 | Duponteil Daniel | DIGITAL DIFFERENTIAL DEMODULATION METHOD |
JP2798127B2 (en) | 1996-07-19 | 1998-09-17 | 日本電気株式会社 | Transmission device and communication device including the same |
KR0173911B1 (en) | 1996-07-25 | 1999-04-01 | 에스케이텔레콤주식회사 | Communication system using cdma modulating demodulating mathod reducing interference |
US5822380A (en) | 1996-08-12 | 1998-10-13 | Ericsson Inc. | Apparatus and method for joint channel estimation |
JP3720141B2 (en) * | 1996-10-01 | 2005-11-24 | 松下電器産業株式会社 | Mobile communication method and apparatus |
US5889827A (en) | 1996-12-12 | 1999-03-30 | Ericsson Inc. | Method and apparatus for digital symbol detection using medium response estimates |
US6335954B1 (en) | 1996-12-27 | 2002-01-01 | Ericsson Inc. | Method and apparatus for joint synchronization of multiple receive channels |
US6026130A (en) | 1997-03-04 | 2000-02-15 | Advanced Micro Devices, Inc. | System and method for estimating a set of parameters for a transmission channel in a communication system |
US6161209A (en) | 1997-03-28 | 2000-12-12 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Through The Communications Research Centre | Joint detector for multiple coded digital signals |
US6147985A (en) * | 1997-05-01 | 2000-11-14 | Lucent Technologies Inc. | Subspace method for adaptive array weight tracking |
US6044120A (en) * | 1997-05-01 | 2000-03-28 | Lucent Technologies Inc. | Time-varying weight estimation |
JP3058261B2 (en) * | 1997-05-28 | 2000-07-04 | 日本電気株式会社 | CDMA handoff system, mobile communication cellular system using the same, and base station thereof |
JP3985299B2 (en) | 1997-07-14 | 2007-10-03 | 三菱電機株式会社 | Mobile communication system |
US6333953B1 (en) | 1997-07-21 | 2001-12-25 | Ericsson Inc. | System and methods for selecting an appropriate detection technique in a radiocommunication system |
US6215762B1 (en) | 1997-07-22 | 2001-04-10 | Ericsson Inc. | Communication system and method with orthogonal block encoding |
US6108517A (en) | 1997-07-28 | 2000-08-22 | Ericsson Inc. | Methods and apparatus for joint demodulation of adjacent channel signals in digital communications systems |
KR19990016606A (en) | 1997-08-18 | 1999-03-15 | 윤종용 | Spread Spectrum Signal Generator and Method using Pseudo-orthogonal Code of CDM Mobile Communication System |
US6125148A (en) | 1997-08-29 | 2000-09-26 | Telefonaktiebolaget Lm Ericsson | Method for demodulating information in a communication system that supports multiple modulation schemes |
KR100239177B1 (en) * | 1997-08-30 | 2000-01-15 | 윤종용 | Smart antenna receiving apparatus and method using pilot signal in cdma mobile communication system |
US5952968A (en) * | 1997-09-15 | 1999-09-14 | Rockwell International Corporation | Method and apparatus for reducing jamming by beam forming using navigational data |
BR9812816A (en) * | 1997-09-15 | 2000-08-08 | Adaptive Telecom Inc | Processes for wireless communication, and to efficiently determine a space channel of the mobile unit in a wireless communication system at the base station, and cdma base station |
JPH1198574A (en) | 1997-09-24 | 1999-04-09 | Toyota Motor Corp | Mobile radio communication system and radio communication mobile station used for the system |
US6259687B1 (en) | 1997-10-31 | 2001-07-10 | Interdigital Technology Corporation | Communication station with multiple antennas |
US6501803B1 (en) | 1998-10-05 | 2002-12-31 | At&T Wireless Services, Inc. | Low complexity maximum likelihood detecting of concatenated space codes for wireless applications |
US6694154B1 (en) | 1997-11-17 | 2004-02-17 | Ericsson Inc. | Method and apparatus for performing beam searching in a radio communication system |
JP3305639B2 (en) | 1997-12-24 | 2002-07-24 | 株式会社エヌ・ティ・ティ・ドコモ | RAKE receiver in direct spread CDMA transmission system |
US5982327A (en) * | 1998-01-12 | 1999-11-09 | Motorola, Inc. | Adaptive array method, device, base station and subscriber unit |
JP3266091B2 (en) * | 1998-03-04 | 2002-03-18 | 日本電気株式会社 | Cellular system |
JPH11266180A (en) | 1998-03-18 | 1999-09-28 | Fujitsu Ltd | Array antenna system for radio base station |
US20010016504A1 (en) | 1998-04-03 | 2001-08-23 | Henrik Dam | Method and system for handling radio signals in a radio base station |
US6067324A (en) * | 1998-06-30 | 2000-05-23 | Motorola, Inc. | Method and system for transmitting and demodulating a communications signal using an adaptive antenna array in a wireless communication system |
US6154443A (en) | 1998-08-11 | 2000-11-28 | Industrial Technology Research Institute | FFT-based CDMA RAKE receiver system and method |
US6647070B1 (en) | 1998-09-10 | 2003-11-11 | Texas Instruments Incorporated | Method and apparatus for combating impulse noise in digital communications channels |
US6459740B1 (en) | 1998-09-17 | 2002-10-01 | At&T Wireless Services, Inc. | Maximum ratio transmission |
US6693953B2 (en) | 1998-09-30 | 2004-02-17 | Skyworks Solutions, Inc. | Adaptive wireless communication receiver |
US6704370B1 (en) | 1998-10-09 | 2004-03-09 | Nortel Networks Limited | Interleaving methodology and apparatus for CDMA |
US6154485A (en) * | 1998-10-19 | 2000-11-28 | Motorola, Inc. | Receiver in a wireless communications system for receiving signals having combined orthogonal transmit diversity and adaptive array techniques |
US6522706B1 (en) | 1998-12-10 | 2003-02-18 | National Semiconductor Corporation | Delay spread estimation for multipath fading channels |
US6501788B1 (en) | 1999-01-22 | 2002-12-31 | Ericsson Inc. | Apparatus and methods for intereference cancellation in spread spectrum communications systems |
US7099410B1 (en) | 1999-01-26 | 2006-08-29 | Ericsson Inc. | Reduced complexity MLSE equalizer for M-ary modulated signals |
US6556634B1 (en) | 1999-02-10 | 2003-04-29 | Ericsson, Inc. | Maximum likelihood rake receiver for use in a code division, multiple access wireless communication system |
US6791960B1 (en) | 1999-03-15 | 2004-09-14 | Lg Information And Communications, Ltd. | Pilot signals for synchronization and/or channel estimation |
EP1177700A1 (en) | 1999-05-07 | 2002-02-06 | Morphics Technology, Inc. | Method of profiling disparate communications and signal processing standards and services |
ES2178364T3 (en) * | 1999-06-24 | 2002-12-16 | Cit Alcatel | DIVERSITY TRANSMISSION IN A MOBILE RADIO SYSTEM. |
US7024168B1 (en) | 1999-07-07 | 2006-04-04 | Telefonaktiebolaget L M Ericsson (Publ) | Controlled antenna diversity |
US6831943B1 (en) * | 1999-08-13 | 2004-12-14 | Texas Instruments Incorporated | Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification |
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 |
US6778507B1 (en) * | 1999-09-01 | 2004-08-17 | Qualcomm Incorporated | Method and apparatus for beamforming in a wireless communication system |
US6115406A (en) * | 1999-09-10 | 2000-09-05 | Interdigital Technology Corporation | Transmission using an antenna array in a CDMA communication system |
AU1088301A (en) | 1999-10-14 | 2001-04-23 | Lior Ophir | Reduced state sequence estimation signal detection method |
US7016436B1 (en) | 1999-12-17 | 2006-03-21 | Ericsson, Inc. | Selective joint demodulation systems and methods for receiving a signal in the presence of noise and interference |
US6484285B1 (en) | 2000-02-07 | 2002-11-19 | Ericsson, Inc. | Tailbiting decoder and method |
US6434366B1 (en) * | 2000-05-31 | 2002-08-13 | Motorola, Inc. | Method and system for estimating adaptive array weights used to transmit a signal to a receiver in a wireless communication system |
US6697441B1 (en) | 2000-06-06 | 2004-02-24 | Ericsson Inc. | Baseband processors and methods and systems for decoding a received signal having a transmitter or channel induced coupling between bits |
US6798852B2 (en) | 2000-06-06 | 2004-09-28 | Ericsson Inc. | Methods and systems for extracting a joint probability from a map decision device and processing a signal using the joint probability information |
US6907092B1 (en) | 2000-07-14 | 2005-06-14 | Comsys Communication & Signal Processing Ltd. | Method of channel order selection and channel estimation in a wireless communication system |
US6870825B1 (en) | 2000-09-06 | 2005-03-22 | Lucent Technologies Inc. | Pilot signal transmission in a multi-transmit antenna wireless communication system |
AU2002211213A1 (en) | 2000-09-12 | 2002-03-26 | Ericsson Inc. | Method and apparatus for soft information generation in joint demodulation of co-channel signals |
US20020044614A1 (en) | 2000-09-12 | 2002-04-18 | Molnar Karl James | Methods and systems for reducing interference using co-channel interference mapping |
US7010069B2 (en) | 2000-12-04 | 2006-03-07 | Trellisware Technologies, Inc. | Method for co-channel interference identification and mitigation |
US6944242B2 (en) | 2001-01-04 | 2005-09-13 | Comsys Communication & Signal Processing Ltd. | Apparatus for and method of converting soft symbol information to soft bit information |
US6731700B1 (en) | 2001-01-04 | 2004-05-04 | Comsys Communication & Signal Processing Ltd. | Soft decision output generator |
US6529559B2 (en) | 2001-01-12 | 2003-03-04 | Comsys Communication & Signal Processing Ltd. | Reduced soft output information packet selection |
US6920191B2 (en) | 2001-02-02 | 2005-07-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Estimation and compensation of the pulse-shape response in wireless terminals |
US6470047B1 (en) | 2001-02-20 | 2002-10-22 | Comsys Communications Signal Processing Ltd. | Apparatus for and method of reducing interference in a communications receiver |
US7471734B2 (en) | 2001-04-26 | 2008-12-30 | Motorola, Inc. | Space-time transmit diversity scheme for time-dispersive propagation media |
GB0115937D0 (en) | 2001-06-29 | 2001-08-22 | Koninkl Philips Electronics Nv | Radio communication system |
US6996380B2 (en) | 2001-07-26 | 2006-02-07 | Ericsson Inc. | Communication system employing transmit macro-diversity |
US7209511B2 (en) | 2001-08-31 | 2007-04-24 | Ericsson Inc. | Interference cancellation in a CDMA receiving system |
US6704376B2 (en) | 2002-01-23 | 2004-03-09 | Bae Systems Information And Electronic Systems Integration Inc. | Power and confidence ordered low complexity soft turbomud with voting system |
KR100532311B1 (en) * | 2003-03-26 | 2005-11-29 | 삼성전자주식회사 | Apparatus for transmit diversity demodulation in mobile communication system and method thereof |
-
1999
- 1999-09-10 US US09/394,452 patent/US6115406A/en not_active Expired - Lifetime
-
2000
- 2000-06-23 US US09/602,963 patent/US6373877B1/en not_active Expired - Lifetime
- 2000-08-17 EP EP04009581A patent/EP1447924B1/en not_active Expired - Lifetime
- 2000-08-17 DE DE60044265T patent/DE60044265D1/en not_active Expired - Lifetime
- 2000-08-17 ES ES04009581T patent/ES2345332T3/en not_active Expired - Lifetime
- 2000-08-17 AT AT04009581T patent/ATE465561T1/en not_active IP Right Cessation
- 2000-08-17 WO PCT/US2000/022559 patent/WO2001018993A1/en active Application Filing
- 2000-08-17 BR BR0013889-4A patent/BR0013889A/en not_active Application Discontinuation
- 2000-08-17 CA CA2498521A patent/CA2498521C/en not_active Expired - Lifetime
- 2000-08-17 EP EP00955636A patent/EP1210777B1/en not_active Expired - Lifetime
- 2000-08-17 CN CN2006101007770A patent/CN1897483B/en not_active Expired - Lifetime
- 2000-08-17 CN CNA2005101250062A patent/CN1770657A/en active Pending
- 2000-08-17 EP EP17161789.7A patent/EP3206308A1/en not_active Withdrawn
- 2000-08-17 JP JP2001522694A patent/JP3767893B2/en not_active Expired - Fee Related
- 2000-08-17 MX MXPA02002522A patent/MXPA02002522A/en active IP Right Grant
- 2000-08-17 DK DK04009581.2T patent/DK1447924T3/en active
- 2000-08-17 CN CN2006101003093A patent/CN1881832B/en not_active Expired - Lifetime
- 2000-08-17 CA CA2833666A patent/CA2833666A1/en not_active Abandoned
- 2000-08-17 CN CNB008126372A patent/CN1237737C/en not_active Expired - Fee Related
- 2000-08-17 DE DE1210777T patent/DE1210777T1/en active Pending
- 2000-08-17 CA CA002383178A patent/CA2383178C/en not_active Expired - Fee Related
- 2000-08-17 DK DK00955636T patent/DK1210777T3/en active
- 2000-08-17 CN CN2006101007766A patent/CN1897482B/en not_active Expired - Lifetime
- 2000-08-17 KR KR10-2002-7003159A patent/KR100451807B1/en active IP Right Grant
- 2000-08-17 AU AU67806/00A patent/AU761473B2/en not_active Ceased
- 2000-08-17 EP EP10001677.3A patent/EP2267917B1/en not_active Expired - Lifetime
- 2000-08-17 PT PT00955636T patent/PT1210777E/en unknown
- 2000-08-17 AT AT00955636T patent/ATE279818T1/en not_active IP Right Cessation
- 2000-08-17 DE DE60014935T patent/DE60014935T2/en not_active Expired - Lifetime
- 2000-08-17 ES ES00955636T patent/ES2225197T3/en not_active Expired - Lifetime
- 2000-08-17 IL IL14841200A patent/IL148412A0/en active IP Right Grant
- 2000-09-11 DK DK04018949.0T patent/DK1475900T3/en active
- 2000-09-11 WO PCT/US2000/024875 patent/WO2001018986A1/en active IP Right Grant
- 2000-09-11 ES ES00963356T patent/ES2223579T3/en not_active Expired - Lifetime
- 2000-09-11 EP EP04018949A patent/EP1475900B1/en not_active Expired - Lifetime
- 2000-09-11 AT AT04018949T patent/ATE459138T1/en not_active IP Right Cessation
- 2000-09-11 DE DE60012944T patent/DE60012944T2/en not_active Expired - Lifetime
- 2000-09-11 DK DK00963356T patent/DK1210775T3/en active
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- 2000-09-11 EP EP00963356A patent/EP1210775B1/en not_active Expired - Lifetime
- 2000-09-11 AU AU74783/00A patent/AU7478300A/en not_active Abandoned
- 2000-09-11 JP JP2001522687A patent/JP3987723B2/en not_active Expired - Fee Related
- 2000-09-11 DE DE60043903T patent/DE60043903D1/en not_active Expired - Lifetime
- 2000-09-11 EP EP10001772A patent/EP2230772A3/en not_active Withdrawn
- 2000-09-11 AT AT00963356T patent/ATE273587T1/en not_active IP Right Cessation
- 2000-09-11 ES ES04018949T patent/ES2342062T3/en not_active Expired - Lifetime
-
2002
- 2002-02-06 US US10/068,668 patent/US6560300B2/en not_active Expired - Lifetime
- 2002-02-06 US US10/068,718 patent/US6983008B2/en not_active Expired - Lifetime
- 2002-02-06 US US10/068,659 patent/US6574265B2/en not_active Expired - Lifetime
- 2002-02-27 IL IL148412A patent/IL148412A/en not_active IP Right Cessation
- 2002-03-07 NO NO20021148A patent/NO327636B1/en not_active IP Right Cessation
- 2002-03-08 NO NO20021177A patent/NO326753B1/en not_active IP Right Cessation
- 2002-09-24 HK HK02106957.6A patent/HK1045613B/en not_active IP Right Cessation
- 2002-09-24 HK HK02106955.8A patent/HK1045611B/en not_active IP Right Cessation
-
2005
- 2005-02-17 HK HK05101337.5A patent/HK1067916A1/en not_active IP Right Cessation
- 2005-03-14 JP JP2005070660A patent/JP3992240B2/en not_active Expired - Lifetime
- 2005-05-06 HK HK05103838.5A patent/HK1072838A1/en not_active IP Right Cessation
- 2005-12-22 US US11/315,795 patent/US7813413B2/en not_active Expired - Fee Related
-
2006
- 2006-07-31 JP JP2006207835A patent/JP2006311611A/en active Pending
- 2006-12-06 US US11/567,498 patent/US7684469B2/en not_active Expired - Fee Related
-
2007
- 2007-02-15 IL IL181375A patent/IL181375A/en not_active IP Right Cessation
- 2007-05-04 HK HK07104741.7A patent/HK1097362A1/en not_active IP Right Cessation
- 2007-06-18 HK HK07106550.2A patent/HK1103317A1/en not_active IP Right Cessation
- 2007-06-29 HK HK07107008.8A patent/HK1102652A1/en not_active IP Right Cessation
-
2008
- 2008-10-13 NO NO20084277A patent/NO20084277L/en not_active Application Discontinuation
-
2009
- 2009-01-09 NO NO20090123A patent/NO335958B1/en not_active IP Right Cessation
-
2010
- 2010-08-12 IL IL207566A patent/IL207566A/en active IP Right Grant
- 2010-10-11 US US12/901,616 patent/US9219522B2/en not_active Expired - Fee Related
- 2010-11-15 JP JP2010255111A patent/JP5175324B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5652764A (en) * | 1995-01-17 | 1997-07-29 | Kabushiki Kaisha Toshiba | Radio communication system |
EP0755127A2 (en) * | 1995-07-19 | 1997-01-22 | Nec Corporation | CDMA diversity transmission system |
US5812542A (en) * | 1996-03-18 | 1998-09-22 | Motorola, Inc. | Method for determining weighting coefficients in a CDMA radio receiver |
EP0881781A2 (en) * | 1997-05-29 | 1998-12-02 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for transmission diversity in CDMA systems |
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---|---|---|---|---|
KR100424537B1 (en) * | 2001-04-18 | 2004-03-27 | 엘지전자 주식회사 | Method for beamforming using smart antenna array |
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