WO2005088863A1 - Transmit diversity and spatial spreading for an ofdm-based multi-antenna communication system - Google Patents
Transmit diversity and spatial spreading for an ofdm-based multi-antenna communication system Download PDFInfo
- Publication number
- WO2005088863A1 WO2005088863A1 PCT/US2005/007020 US2005007020W WO2005088863A1 WO 2005088863 A1 WO2005088863 A1 WO 2005088863A1 US 2005007020 W US2005007020 W US 2005007020W WO 2005088863 A1 WO2005088863 A1 WO 2005088863A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- subband
- pilot
- symbols
- data
- data symbols
- Prior art date
Links
Classifications
-
- 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
- H04B7/0413—MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05724541A EP1751883A1 (en) | 2004-03-05 | 2005-03-03 | Transmit diversity and spatial spreading for an ofdm-based multi-antenna communication system |
MXPA06010070A MXPA06010070A (en) | 2004-03-05 | 2005-03-03 | Transmit diversity and spatial spreading for an ofdm-based multi-antenna communication system. |
AU2005222327A AU2005222327A1 (en) | 2004-03-05 | 2005-03-03 | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
BRPI0508412-1A BRPI0508412A (en) | 2004-03-05 | 2005-03-03 | transmission diversity and spatial spread for an ofdm based multi-antenna communication system |
JP2007501999A JP4537445B2 (en) | 2004-03-05 | 2005-03-03 | Transmit diversity and spatial spreading for multi-antenna communication systems based on OFDM |
CA002558542A CA2558542A1 (en) | 2004-03-05 | 2005-03-03 | Transmit diversity and spatial spreading for an ofdm-based multi-antenna communication system |
IL177884A IL177884A0 (en) | 2004-03-05 | 2006-09-04 | Transmit diversity and spatial spreading for an ofdm-based multi-antenna communication system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/794,918 US8169889B2 (en) | 2004-02-18 | 2004-03-05 | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
US10/794,918 | 2004-03-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005088863A1 true WO2005088863A1 (en) | 2005-09-22 |
Family
ID=34912382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/007020 WO2005088863A1 (en) | 2004-03-05 | 2005-03-03 | Transmit diversity and spatial spreading for an ofdm-based multi-antenna communication system |
Country Status (13)
Country | Link |
---|---|
US (2) | US8169889B2 (en) |
EP (1) | EP1751883A1 (en) |
JP (2) | JP4537445B2 (en) |
KR (1) | KR100855919B1 (en) |
CN (1) | CN100586041C (en) |
AU (1) | AU2005222327A1 (en) |
BR (1) | BRPI0508412A (en) |
CA (1) | CA2558542A1 (en) |
IL (1) | IL177884A0 (en) |
MX (1) | MXPA06010070A (en) |
RU (1) | RU2368079C2 (en) |
TW (1) | TWI394389B (en) |
WO (1) | WO2005088863A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010504051A (en) * | 2006-09-15 | 2010-02-04 | クゥアルコム・インコーポレイテッド | Method and apparatus associated with a multi-mode wireless communication device supporting both wide area network signaling and peer-to-peer signaling |
US8369800B2 (en) | 2006-09-15 | 2013-02-05 | Qualcomm Incorporated | Methods and apparatus related to power control and/or interference management in a mixed wireless communications system |
US8452317B2 (en) | 2006-09-15 | 2013-05-28 | Qualcomm Incorporated | Methods and apparatus related to power control and/or interference management in a mixed wireless communications system supporting WAN signaling and peer to peer signaling |
US8929281B2 (en) | 2006-09-15 | 2015-01-06 | Qualcomm Incorporated | Methods and apparatus related to peer to peer device |
US8971222B2 (en) | 2005-10-27 | 2015-03-03 | Qualcomm Incorporated | Method and apparatus for decrementing assignments in wireless communication systems |
EP2398289A3 (en) * | 2010-06-16 | 2017-05-03 | Harris Corporation | Wireless communication system with selective preamble synchronization portion and related methods |
Families Citing this family (135)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9130810B2 (en) | 2000-09-13 | 2015-09-08 | Qualcomm Incorporated | OFDM communications methods and apparatus |
US7295509B2 (en) | 2000-09-13 | 2007-11-13 | Qualcomm, Incorporated | Signaling method in an OFDM multiple access system |
US7339605B2 (en) * | 2004-04-16 | 2008-03-04 | Polycom, Inc. | Conference link between a speakerphone and a video conference unit |
US7042857B2 (en) | 2002-10-29 | 2006-05-09 | Qualcom, Incorporated | Uplink pilot and signaling transmission in wireless communication systems |
US7177297B2 (en) * | 2003-05-12 | 2007-02-13 | Qualcomm Incorporated | Fast frequency hopping with a code division multiplexed pilot in an OFDMA system |
US8204149B2 (en) | 2003-12-17 | 2012-06-19 | Qualcomm Incorporated | Spatial spreading in a multi-antenna communication system |
US7450489B2 (en) * | 2003-12-30 | 2008-11-11 | Intel Corporation | Multiple-antenna communication systems and methods for communicating in wireless local area networks that include single-antenna communication devices |
US7336746B2 (en) * | 2004-12-09 | 2008-02-26 | Qualcomm Incorporated | Data transmission with spatial spreading in a MIMO communication system |
US8611283B2 (en) * | 2004-01-28 | 2013-12-17 | Qualcomm Incorporated | Method and apparatus of using a single channel to provide acknowledgement and assignment messages |
US20050180312A1 (en) * | 2004-02-18 | 2005-08-18 | Walton J. R. | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
US8169889B2 (en) | 2004-02-18 | 2012-05-01 | Qualcomm Incorporated | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
US7408976B1 (en) * | 2004-05-19 | 2008-08-05 | Marvell International Ltd. | MIMO-OFDM receiver processing with frequency and channel estimation |
US8422585B2 (en) | 2004-04-01 | 2013-04-16 | Research In Motion Limited | Space-time block coding systems and methods |
EP2173051B1 (en) * | 2004-04-01 | 2014-08-27 | BlackBerry Limited | Space-time block coding systems and methods |
US8285226B2 (en) * | 2004-05-07 | 2012-10-09 | Qualcomm Incorporated | Steering diversity for an OFDM-based multi-antenna communication system |
US8923785B2 (en) | 2004-05-07 | 2014-12-30 | Qualcomm Incorporated | Continuous beamforming for a MIMO-OFDM system |
ATE453156T1 (en) * | 2004-06-10 | 2010-01-15 | Panasonic Corp | SYSTEM AND METHOD FOR RUNTIME RECONFIGURATION |
US7660362B2 (en) * | 2004-06-18 | 2010-02-09 | Broadcom Corporation | Wireless local area network system using space-time block coding (STBC) having backward compatibility with prior standards |
US7110463B2 (en) * | 2004-06-30 | 2006-09-19 | Qualcomm, Incorporated | Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system |
US7522674B2 (en) * | 2004-07-02 | 2009-04-21 | Texas Instruments Incorporated | Linearly independent preambles for MIMO channel estimation with backward compatibility |
US20060009168A1 (en) * | 2004-07-12 | 2006-01-12 | Lucent Technologies, Inc. | Method for controlling transmissions using both diversity and nondiversity transmission schemes |
US7978649B2 (en) | 2004-07-15 | 2011-07-12 | Qualcomm, Incorporated | Unified MIMO transmission and reception |
US9148256B2 (en) | 2004-07-21 | 2015-09-29 | Qualcomm Incorporated | Performance based rank prediction for MIMO design |
US9137822B2 (en) | 2004-07-21 | 2015-09-15 | Qualcomm Incorporated | Efficient signaling over access channel |
US8891349B2 (en) | 2004-07-23 | 2014-11-18 | Qualcomm Incorporated | Method of optimizing portions of a frame |
KR100586886B1 (en) | 2004-08-13 | 2006-06-08 | 삼성전자주식회사 | Method and apparatus for wireless local area network communication |
US7978778B2 (en) | 2004-09-03 | 2011-07-12 | Qualcomm, Incorporated | Receiver structures for spatial spreading with space-time or space-frequency transmit diversity |
US20060140294A1 (en) * | 2004-11-05 | 2006-06-29 | Nokia Corporation | Block modulation |
US8238923B2 (en) * | 2004-12-22 | 2012-08-07 | Qualcomm Incorporated | Method of using shared resources in a communication system |
US7852822B2 (en) * | 2004-12-22 | 2010-12-14 | Qualcomm Incorporated | Wide area and local network ID transmission for communication systems |
US8831115B2 (en) * | 2004-12-22 | 2014-09-09 | Qualcomm Incorporated | MC-CDMA multiplexing in an orthogonal uplink |
US9246560B2 (en) | 2005-03-10 | 2016-01-26 | Qualcomm Incorporated | Systems and methods for beamforming and rate control in a multi-input multi-output communication systems |
US20060203794A1 (en) * | 2005-03-10 | 2006-09-14 | Qualcomm Incorporated | Systems and methods for beamforming in multi-input multi-output communication systems |
US9154211B2 (en) | 2005-03-11 | 2015-10-06 | Qualcomm Incorporated | Systems and methods for beamforming feedback in multi antenna communication systems |
US7742444B2 (en) | 2005-03-15 | 2010-06-22 | Qualcomm Incorporated | Multiple other sector information combining for power control in a wireless communication system |
US8446892B2 (en) | 2005-03-16 | 2013-05-21 | Qualcomm Incorporated | Channel structures for a quasi-orthogonal multiple-access communication system |
US20090213950A1 (en) * | 2005-03-17 | 2009-08-27 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9520972B2 (en) | 2005-03-17 | 2016-12-13 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9143305B2 (en) | 2005-03-17 | 2015-09-22 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9461859B2 (en) | 2005-03-17 | 2016-10-04 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
JP4610388B2 (en) * | 2005-03-24 | 2011-01-12 | 三洋電機株式会社 | Wireless device |
US9184870B2 (en) | 2005-04-01 | 2015-11-10 | Qualcomm Incorporated | Systems and methods for control channel signaling |
US9036538B2 (en) * | 2005-04-19 | 2015-05-19 | Qualcomm Incorporated | Frequency hopping design for single carrier FDMA systems |
US9408220B2 (en) | 2005-04-19 | 2016-08-02 | Qualcomm Incorporated | Channel quality reporting for adaptive sectorization |
US8879511B2 (en) | 2005-10-27 | 2014-11-04 | Qualcomm Incorporated | Assignment acknowledgement for a wireless communication system |
US8611284B2 (en) | 2005-05-31 | 2013-12-17 | Qualcomm Incorporated | Use of supplemental assignments to decrement resources |
US8565194B2 (en) | 2005-10-27 | 2013-10-22 | Qualcomm Incorporated | Puncturing signaling channel for a wireless communication system |
US8462859B2 (en) | 2005-06-01 | 2013-06-11 | Qualcomm Incorporated | Sphere decoding apparatus |
US8199791B2 (en) * | 2005-06-08 | 2012-06-12 | Polycom, Inc. | Mixed voice and spread spectrum data signaling with enhanced concealment of data |
US9055552B2 (en) | 2005-06-16 | 2015-06-09 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
US9179319B2 (en) | 2005-06-16 | 2015-11-03 | Qualcomm Incorporated | Adaptive sectorization in cellular systems |
US8599945B2 (en) | 2005-06-16 | 2013-12-03 | Qualcomm Incorporated | Robust rank prediction for a MIMO system |
US8750908B2 (en) | 2005-06-16 | 2014-06-10 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
CN101218845B (en) * | 2005-07-29 | 2013-02-27 | 松下电器产业株式会社 | Wireless communication base station apparatus, wireless communication mobile station apparatus and pilot signal sequence allocating method in multicarrier communication |
US8885628B2 (en) | 2005-08-08 | 2014-11-11 | Qualcomm Incorporated | Code division multiplexing in a single-carrier frequency division multiple access system |
US9209956B2 (en) | 2005-08-22 | 2015-12-08 | Qualcomm Incorporated | Segment sensitive scheduling |
US20070041457A1 (en) | 2005-08-22 | 2007-02-22 | Tamer Kadous | Method and apparatus for providing antenna diversity in a wireless communication system |
US8644292B2 (en) | 2005-08-24 | 2014-02-04 | Qualcomm Incorporated | Varied transmission time intervals for wireless communication system |
US20070047495A1 (en) * | 2005-08-29 | 2007-03-01 | Qualcomm Incorporated | Reverse link soft handoff in a wireless multiple-access communication system |
US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
WO2007025469A1 (en) * | 2005-09-01 | 2007-03-08 | Huawei Technologies Co., Ltd. | Multi-mode network communication system |
WO2007029579A1 (en) * | 2005-09-06 | 2007-03-15 | Sanyo Electric Co., Ltd. | Reception method and device and communication system using the same |
US9172453B2 (en) | 2005-10-27 | 2015-10-27 | Qualcomm Incorporated | Method and apparatus for pre-coding frequency division duplexing system |
US9210651B2 (en) | 2005-10-27 | 2015-12-08 | Qualcomm Incorporated | Method and apparatus for bootstraping information in a communication system |
US8693405B2 (en) | 2005-10-27 | 2014-04-08 | Qualcomm Incorporated | SDMA resource management |
US8582509B2 (en) * | 2005-10-27 | 2013-11-12 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9225488B2 (en) * | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Shared signaling channel |
US20070147226A1 (en) * | 2005-10-27 | 2007-06-28 | Aamod Khandekar | Method and apparatus for achieving flexible bandwidth using variable guard bands |
US20070097935A1 (en) * | 2005-10-27 | 2007-05-03 | Alexei Gorokhov | In-band rate control for an orthogonal frequency division multiple access communication system |
US9088384B2 (en) | 2005-10-27 | 2015-07-21 | Qualcomm Incorporated | Pilot symbol transmission in wireless communication systems |
US20090207790A1 (en) | 2005-10-27 | 2009-08-20 | Qualcomm Incorporated | Method and apparatus for settingtuneawaystatus in an open state in wireless communication system |
US9225416B2 (en) * | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Varied signaling channels for a reverse link in a wireless communication system |
US9144060B2 (en) | 2005-10-27 | 2015-09-22 | Qualcomm Incorporated | Resource allocation for shared signaling channels |
US8045512B2 (en) | 2005-10-27 | 2011-10-25 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US8477684B2 (en) | 2005-10-27 | 2013-07-02 | Qualcomm Incorporated | Acknowledgement of control messages in a wireless communication system |
US8582548B2 (en) | 2005-11-18 | 2013-11-12 | Qualcomm Incorporated | Frequency division multiple access schemes for wireless communication |
US8831607B2 (en) | 2006-01-05 | 2014-09-09 | Qualcomm Incorporated | Reverse link other sector communication |
US8543070B2 (en) | 2006-04-24 | 2013-09-24 | Qualcomm Incorporated | Reduced complexity beam-steered MIMO OFDM system |
JP2007300383A (en) * | 2006-04-28 | 2007-11-15 | Fujitsu Ltd | Mimo-ofdm transmitter |
US7787554B1 (en) * | 2006-05-02 | 2010-08-31 | Marvell International Ltd. | Beamforming to a subset of receive antennas in a wireless MIMO communication system |
US8290089B2 (en) | 2006-05-22 | 2012-10-16 | Qualcomm Incorporated | Derivation and feedback of transmit steering matrix |
US8819099B2 (en) * | 2006-09-26 | 2014-08-26 | Qualcomm Incorporated | Software implementation of matrix inversion in a wireless communication system |
KR100829221B1 (en) * | 2007-01-26 | 2008-05-14 | 삼성전자주식회사 | Method of controlling data transmission mode in an orthogonal frequency division multeplexing wireless relay system, and aparatus using the same |
US8611480B1 (en) * | 2007-03-26 | 2013-12-17 | Marvell International Ltd. | Optimal decoding of transmit diversity code with varying channel characteristics |
US8134985B2 (en) * | 2007-05-17 | 2012-03-13 | Symbol Technologies, Inc. | System and method for WLAN multi-channel redundancy for VoIP optimization |
US7893871B1 (en) | 2007-10-10 | 2011-02-22 | Marvell International Ltd. | Beamforming with partial channel knowledge |
WO2009114391A1 (en) * | 2008-03-07 | 2009-09-17 | Interdigital Patent Holdings, Inc. | Partial channel precoding and successive interference cancellation for multi-input multi-output orthogonal frequency division modulation (mimo-ofdm) systems |
JP5068699B2 (en) * | 2008-06-23 | 2012-11-07 | 株式会社エヌ・ティ・ティ・ドコモ | Base station apparatus and method |
US20100232384A1 (en) * | 2009-03-13 | 2010-09-16 | Qualcomm Incorporated | Channel estimation based upon user specific and common reference signals |
US8995420B2 (en) | 2009-04-28 | 2015-03-31 | Alcatel Lucent | Transmitter with multiple antennas and data transmission method in the transmitter with multiple antennas |
JP5278173B2 (en) * | 2009-06-04 | 2013-09-04 | ソニー株式会社 | Receiving apparatus and method, program, and receiving system |
US9706599B1 (en) | 2009-07-23 | 2017-07-11 | Marvell International Ltd. | Long wireless local area network (WLAN) packets with midambles |
CN104702376B (en) * | 2009-07-29 | 2018-04-13 | 马维尔国际贸易有限公司 | The method and apparatus sent for WLAN |
US8660497B1 (en) | 2009-08-18 | 2014-02-25 | Marvell International Ltd. | Beamsteering in a spatial division multiple access (SDMA) system |
EP2293483B1 (en) * | 2009-09-04 | 2016-07-27 | STMicroelectronics Srl | Method and device for soft-output detection in multiple antenna communication systems |
BR112012006057B1 (en) * | 2009-10-01 | 2021-08-24 | Sun Patent Trust | TERMINAL APPLIANCE, TRANSMISSION METHOD, COMMUNICATION APPLIANCE AND COMMUNICATION METHOD |
KR101234004B1 (en) * | 2009-12-18 | 2013-02-18 | 한국전자통신연구원 | Method for transmitting/receiving data in a wireless packet communication system |
US8873582B2 (en) * | 2010-04-08 | 2014-10-28 | Lg Electronics Inc. | Method for transmitting PPDU in wireless local area network and apparatus for the same |
CN102237945A (en) | 2010-05-06 | 2011-11-09 | 松下电器产业株式会社 | Code division multiplexing method based on quadrature encoding, code division multiplexing equipment and demultiplexing equipment |
US8498245B2 (en) * | 2010-05-15 | 2013-07-30 | Ralink Technology Corp. | Method of arranging packets in a wireless communication system and related device |
KR101923200B1 (en) | 2010-06-16 | 2018-11-29 | 마벨 월드 트레이드 리미티드 | Method and system for alternate feedback types for downlink multiple user mimo configurations in a communication network |
WO2012021449A1 (en) * | 2010-08-10 | 2012-02-16 | Marvell World Trade Ltd. | Sub-band feedback for beamforming on downlink multiple user mimo configurations |
CN103238279A (en) | 2010-10-01 | 2013-08-07 | 捷讯研究有限公司 | Orthogonal resource selection transmit diversity and resource assignment |
US8699644B1 (en) * | 2010-10-28 | 2014-04-15 | Marvell International Ltd. | Adaptive low-complexity channel estimation |
US8761292B1 (en) * | 2010-11-03 | 2014-06-24 | Marvell International Ltd. | Beamforming with steering submatrix selection |
US8913515B2 (en) * | 2010-12-15 | 2014-12-16 | Mediatek Singapore Pte. Ltd. | Measuring and improving multiuser downlink reception quality in wireless local area networks |
JP5548316B2 (en) | 2010-12-22 | 2014-07-16 | エルジー エレクトロニクス インコーポレイティド | Link adaptation method and apparatus in wireless LAN system |
JP5540146B2 (en) * | 2011-02-21 | 2014-07-02 | パナソニック株式会社 | Precoding method and precoding device |
JP5712698B2 (en) * | 2011-03-11 | 2015-05-07 | ソニー株式会社 | Signal processing apparatus, signal processing method, and program |
US8971210B1 (en) * | 2011-05-23 | 2015-03-03 | Redpine Signals, Inc. | Reconfigurable multi-stream processor for multiple-input multiple-output (MIMO) wireless networks |
JP5938737B2 (en) * | 2011-06-01 | 2016-06-22 | パナソニックIpマネジメント株式会社 | Radar equipment |
US8797881B2 (en) * | 2011-06-13 | 2014-08-05 | Cisco Technology, Inc. | Coexistence mechanism for multiple channels |
US8908492B2 (en) * | 2011-08-11 | 2014-12-09 | Blackberry Limited | Orthogonal resource selection transmit diversity and resource assignment |
US9143215B2 (en) | 2011-08-11 | 2015-09-22 | Blackberry Limited | Orthogonal resource selection transmit diversity and resource assignment |
US8891353B2 (en) | 2011-08-11 | 2014-11-18 | Blackberry Limited | Orthogonal resource selection transmit diversity and resource assignment |
US9036684B2 (en) * | 2011-09-28 | 2015-05-19 | Telefonaktiebolaget L M Ericsson (Publ) | Spatially randomized pilot symbol transmission methods, systems and devices for multiple input/multiple output (MIMO) wireless communications |
US20140064169A1 (en) * | 2012-09-05 | 2014-03-06 | Qualcomm Incorporated | Duty cycled transmissions |
EP2930871B1 (en) * | 2012-12-07 | 2018-03-07 | Sun Patent Trust | Signal generation method, transmission device, reception method, and reception device |
JP2017509213A (en) | 2014-01-22 | 2017-03-30 | 華為技術有限公司Huawei Technologies Co.,Ltd. | Information processing apparatus, network node, and information processing method |
EP3764612B1 (en) * | 2014-01-28 | 2022-07-20 | Huawei Technologies Co., Ltd. | Data transmission method and communications device |
CN106664187A (en) | 2014-06-02 | 2017-05-10 | 马维尔国际贸易有限公司 | High efficiency orthogonal frequency division multiplexing (ofdm) physical layer (phy) |
WO2015190806A1 (en) * | 2014-06-09 | 2015-12-17 | 엘지전자 주식회사 | Method for transmitting data using plurality of subbands and apparatus using same |
EP3155779B1 (en) | 2014-06-11 | 2019-10-16 | Marvell World Trade Ltd. | Compressed preamble for a wireless communication system |
CN104144040A (en) * | 2014-08-26 | 2014-11-12 | 杜岩 | MIMO communication data sending method and device |
KR20170061129A (en) * | 2014-09-30 | 2017-06-02 | 엘지전자 주식회사 | Method for measuring inter-device interference in a wireless communication system supporting FDR transmission and apparatus therefor |
CN107025780B (en) * | 2015-06-25 | 2020-09-01 | 北京智谷睿拓技术服务有限公司 | Interaction method and communication equipment |
CN106297230B (en) | 2015-06-25 | 2019-07-26 | 北京智谷睿拓技术服务有限公司 | Exchange method and communication equipment |
CN106297229B (en) | 2015-06-25 | 2019-08-02 | 北京智谷睿拓技术服务有限公司 | Exchange method and communication equipment |
CN105743575A (en) * | 2016-01-25 | 2016-07-06 | 中国人民解放军信息工程大学 | Signal processing method and device |
GR1009247B (en) * | 2017-01-12 | 2018-03-15 | Αριστοτελειο Πανεπιστημιο Θεσσαλονικης-Ειδικος Λογαριασμος Κονδυλιων Ερευνας | A method for the exploitation of image interference in multi-carrier wireless systems |
EP3635926B1 (en) | 2017-06-09 | 2024-03-27 | Marvell World Trade Ltd. | Packets with midambles having compressed ofdm symbols |
WO2019060407A1 (en) | 2017-09-22 | 2019-03-28 | Marvell World Trade Ltd. | Determining number of midambles in a packet |
US11206667B2 (en) * | 2019-06-07 | 2021-12-21 | Intel Corporation | Data scrambler in extreme high throughput |
EP4038749A1 (en) | 2019-09-30 | 2022-08-10 | Nokia Technologies Oy | Physical layer security by pseudo-random layer mapping |
CN112737730B (en) * | 2020-12-22 | 2022-12-02 | 青岛鼎信通讯消防安全有限公司 | Current loop communication data sending and receiving method and system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001076110A2 (en) * | 2000-03-30 | 2001-10-11 | Qualcomm Incorporated | Method and apparatus for measuring channel state information |
US6452981B1 (en) * | 1996-08-29 | 2002-09-17 | Cisco Systems, Inc | Spatio-temporal processing for interference handling |
WO2003015334A1 (en) * | 2001-08-09 | 2003-02-20 | Nokia Corporation | Diversity transmitter and diversity transmission method |
Family Cites Families (189)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4337376A (en) | 1979-12-31 | 1982-06-29 | Broadcom, Incorporated | Communications system and network |
IL100213A (en) | 1990-12-07 | 1995-03-30 | Qualcomm Inc | CDMA microcellular telephone system and distributed antenna system therefor |
DE4101629C3 (en) | 1991-01-21 | 2003-06-26 | Fuba Automotive Gmbh | Antenna diversity system with at least two antennas for the mobile reception of meter and decimeter waves |
IT1259032B (en) | 1992-05-25 | 1996-03-11 | Alcatel Italia | METHOD FOR PROCESSING AND OPTIMIZING THE ANALOGUE FUNCTION IN A DIGITAL RADIO TRANSMISSION SYSTEM IN DIFFERENT SPACE AND / OR ANGLE |
RU2103768C1 (en) | 1992-10-16 | 1998-01-27 | Дадочкин Сергей Васильевич | Method of correction of amplitude-phase characteristics of primary channels of flat digital array |
US5668837A (en) * | 1993-10-14 | 1997-09-16 | Ericsson Inc. | Dual-mode radio receiver for receiving narrowband and wideband signals |
DE69521852T2 (en) * | 1994-02-10 | 2002-04-04 | Nippon Telegraph & Telephone | ADAPTIVE SPREAD SPECTRUM RECEIVER |
US5604921A (en) | 1995-07-07 | 1997-02-18 | Nokia Mobile Phones Ltd. | Radiotelephone user interface for broadcast short message service |
US6134215A (en) | 1996-04-02 | 2000-10-17 | Qualcomm Incorpoated | Using orthogonal waveforms to enable multiple transmitters to share a single CDM channel |
JP2976888B2 (en) | 1996-06-27 | 1999-11-10 | 日本電気株式会社 | Circuit simulation method |
DE19626984C1 (en) | 1996-07-04 | 1997-11-27 | Siemens Ag | Process for computer-aided determination of a system context function |
US6118758A (en) | 1996-08-22 | 2000-09-12 | Tellabs Operations, Inc. | Multi-point OFDM/DMT digital communications system including remote service unit with improved transmitter architecture |
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 |
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 |
US6058105A (en) | 1997-09-26 | 2000-05-02 | Lucent Technologies Inc. | Multiple antenna communication system and method thereof |
US6061023A (en) | 1997-11-03 | 2000-05-09 | Motorola, Inc. | Method and apparatus for producing wide null antenna patterns |
US6314147B1 (en) | 1997-11-04 | 2001-11-06 | The Board Of Trustees Of The Leland Stanford Junior University | Two-stage CCI/ISI reduction with space-time processing in TDMA cellular networks |
JP3718337B2 (en) | 1998-01-08 | 2005-11-24 | 株式会社東芝 | Adaptive variable directional antenna |
US6618454B1 (en) * | 1998-02-06 | 2003-09-09 | At&T Corp. | Diversity coded OFDM for high data-rate communication |
US6317466B1 (en) | 1998-04-15 | 2001-11-13 | Lucent Technologies Inc. | Wireless communications system having a space-time architecture employing multi-element antennas at both the transmitter and receiver |
US6198775B1 (en) * | 1998-04-28 | 2001-03-06 | Ericsson Inc. | Transmit diversity method, systems, and terminals using scramble coding |
US6175743B1 (en) * | 1998-05-01 | 2001-01-16 | Ericsson Inc. | System and method for delivery of short message service messages to a restricted group of subscribers |
KR100778647B1 (en) | 1998-09-04 | 2007-11-22 | 에이티 앤드 티 코포레이션 | Combined channel coding and space-block coding in a multi-antenna arrangement |
EP1033004A1 (en) | 1998-09-18 | 2000-09-06 | Hughes Electronics Corporation | Method and constructions for space-time codes for psk constellations for spatial diversity in multiple-element antenna systems |
US6363121B1 (en) | 1998-12-07 | 2002-03-26 | Lucent Technologies Inc. | Wireless transmission method for antenna arrays using unitary space-time signals |
GB9828216D0 (en) * | 1998-12-21 | 1999-02-17 | Northern Telecom Ltd | A downlink beamforming approach for frequency division duplex cellular systems |
GB9901491D0 (en) | 1999-01-22 | 1999-03-17 | Univ Bristol | Receiver |
EP1073214B1 (en) | 1999-02-16 | 2008-12-17 | Mitsubishi Denki Kabushiki Kaisha | Radio communication system, transmitter and receiver |
US6218985B1 (en) * | 1999-04-15 | 2001-04-17 | The United States Of America As Represented By The Secretary Of The Navy | Array synthesis method |
US6510354B1 (en) | 1999-04-21 | 2003-01-21 | Ching-Fang Lin | Universal robust filtering process |
CA2388024C (en) | 1999-10-19 | 2008-04-15 | Interdigital Technology Corporation | Receiver for multiuser detection of cdma signals |
US6788661B1 (en) * | 1999-11-12 | 2004-09-07 | Nikia Networks Oy | Adaptive beam-time coding method and apparatus |
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 |
US6298035B1 (en) * | 1999-12-21 | 2001-10-02 | Nokia Networks Oy | Estimation of two propagation channels in OFDM |
US6888809B1 (en) * | 2000-01-13 | 2005-05-03 | Lucent Technologies Inc. | Space-time processing for multiple-input, multiple-output, wireless systems |
US6804307B1 (en) | 2000-01-27 | 2004-10-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for efficient transmit diversity using complex space-time block codes |
US6816555B2 (en) | 2000-02-18 | 2004-11-09 | Sony Corporation | Signal component demultiplexing apparatus, filter apparatus, receiving apparatus, communication apparatus, and communication method |
US6952454B1 (en) | 2000-03-22 | 2005-10-04 | Qualcomm, Incorporated | Multiplexing of real time services and non-real time services for OFDM systems |
US6493331B1 (en) | 2000-03-30 | 2002-12-10 | Qualcomm Incorporated | Method and apparatus for controlling transmissions of a communications systems |
US6542556B1 (en) * | 2000-03-31 | 2003-04-01 | Nokia Mobile Phones Ltd. | Space-time code for multiple antenna transmission |
US7068628B2 (en) | 2000-05-22 | 2006-06-27 | At&T Corp. | MIMO OFDM system |
US20020009125A1 (en) * | 2000-06-12 | 2002-01-24 | Shi Zhen Liang | High bandwidth efficient spread spectrum modulation using chirp waveform |
JP2001358692A (en) * | 2000-06-14 | 2001-12-26 | Nec Corp | Orthogonal frequency-division multiplex modulating and demodulating circuit |
KR100493152B1 (en) | 2000-07-21 | 2005-06-02 | 삼성전자주식회사 | Transmission antenna diversity method, base station apparatus and mobile station apparatus therefor in mobile communication system |
US6486828B1 (en) | 2000-07-26 | 2002-11-26 | Western Multiplex | Adaptive array antenna nulling |
US7065156B1 (en) | 2000-08-31 | 2006-06-20 | Nokia Mobile Phones Ltd. | Hopped delay diversity for multiple antenna transmission |
US6985434B2 (en) | 2000-09-01 | 2006-01-10 | Nortel Networks Limited | Adaptive time diversity and spatial diversity for OFDM |
US6694147B1 (en) | 2000-09-15 | 2004-02-17 | Flarion Technologies, Inc. | Methods and apparatus for transmitting information between a basestation and multiple mobile stations |
US6842487B1 (en) | 2000-09-22 | 2005-01-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Cyclic delay diversity for mitigating intersymbol interference in OFDM systems |
US6956897B1 (en) * | 2000-09-27 | 2005-10-18 | Northwestern University | Reduced rank adaptive filter |
US7110378B2 (en) * | 2000-10-03 | 2006-09-19 | Wisconsin Alumni Research Foundation | Channel aware optimal space-time signaling for wireless communication over wideband multipath channels |
EP1195937A1 (en) * | 2000-10-03 | 2002-04-10 | Telefonaktiebolaget Lm Ericsson | Space-time coding with orthogonal transformations |
EP2259480A3 (en) * | 2000-11-20 | 2012-05-02 | Sony Deutschland Gmbh | Adaptive subcarrier loading |
US20080095121A1 (en) | 2002-05-14 | 2008-04-24 | Shattil Steve J | Carrier interferometry networks |
EP1215507A3 (en) | 2000-12-12 | 2002-08-28 | Matsushita Electric Industrial Co., Ltd. | Radio-wave arrival-direction estimating apparatus and directional variable transceiver |
CA2328644C (en) | 2000-12-15 | 2005-05-10 | Ibm Canada Limited-Ibm Canada Limitee | Methods, systems, signals and media for encouraging users of computer readable content to register |
JP3576099B2 (en) | 2000-12-22 | 2004-10-13 | 株式会社東芝 | Receiver using smart antenna, receiving method using smart antenna, and beam forming circuit |
US7050510B2 (en) | 2000-12-29 | 2006-05-23 | Lucent Technologies Inc. | Open-loop diversity technique for systems employing four transmitter antennas |
US6801790B2 (en) * | 2001-01-17 | 2004-10-05 | Lucent Technologies Inc. | Structure for multiple antenna configurations |
GB0102316D0 (en) * | 2001-01-30 | 2001-03-14 | Koninkl Philips Electronics Nv | Radio communication system |
EP1241824A1 (en) | 2001-03-14 | 2002-09-18 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Multiplexing method in a multicarrier transmit diversity system |
US6496535B2 (en) | 2001-03-23 | 2002-12-17 | Navini Networks, Inc. | Method and system for effective channel estimation in a telecommunication system |
US6771706B2 (en) | 2001-03-23 | 2004-08-03 | Qualcomm Incorporated | Method and apparatus for utilizing channel state information in a wireless communication system |
GB0108381D0 (en) | 2001-04-04 | 2001-05-23 | Koninl Philips Electronics Nv | Radio communication system |
US6982946B2 (en) * | 2001-04-05 | 2006-01-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Partly orthogonal multiple code trees |
US7929631B2 (en) | 2001-04-23 | 2011-04-19 | Texas Instruments Incorporated | Multiple space time transmit diversity communication system with selected complex conjugate inputs |
US6859747B2 (en) | 2001-04-26 | 2005-02-22 | Siemens Energy & Automation, Inc. | Method and apparatus for self-calibrating a motion control system |
US7173981B1 (en) | 2001-04-27 | 2007-02-06 | The Directv Group, Inc. | Dual layer signal processing in a layered modulation digital signal system |
US6785341B2 (en) | 2001-05-11 | 2004-08-31 | Qualcomm Incorporated | Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information |
US6711124B2 (en) * | 2001-05-25 | 2004-03-23 | Ericsson Inc. | Time interval based channel estimation with transmit diversity |
JP4387791B2 (en) * | 2001-05-25 | 2009-12-24 | リージェンツ オブ ザ ユニバーシティ オブ ミネソタ | Space-time coded transmission method in a wireless communication network |
US6999472B2 (en) * | 2001-05-30 | 2006-02-14 | Nokia Mobile Phones Limited | Apparatus, and associated method, for space-time encoding, and decoding, data at a selected code rate |
US20020193146A1 (en) * | 2001-06-06 | 2002-12-19 | Mark Wallace | Method and apparatus for antenna diversity in a wireless communication system |
FR2827439B1 (en) * | 2001-07-13 | 2003-10-24 | Leroy Somer Moteurs | DISCOID MACHINE |
US6441786B1 (en) * | 2001-07-20 | 2002-08-27 | Motorola, Inc. | Adaptive antenna array and method for control thereof |
CN1161907C (en) | 2001-07-20 | 2004-08-11 | 华为技术有限公司 | Downstream feedback multiple-antenna emitting method and device for radio communication system |
EP1283614A1 (en) | 2001-08-10 | 2003-02-12 | TELEFONAKTIEBOLAGET L M ERICSSON (publ) | Channel estimation in a multicarrier transmit diversity system |
US7359466B2 (en) * | 2001-08-24 | 2008-04-15 | Lucent Technologies Inc. | Signal detection by a receiver in a multiple antenna time-dispersive system |
US7149254B2 (en) | 2001-09-06 | 2006-12-12 | Intel Corporation | Transmit signal preprocessing based on transmit antennae correlations for multiple antennae systems |
US7248559B2 (en) * | 2001-10-17 | 2007-07-24 | Nortel Networks Limited | Scattered pilot pattern and channel estimation method for MIMO-OFDM systems |
US7327798B2 (en) * | 2001-10-19 | 2008-02-05 | Lg Electronics Inc. | Method and apparatus for transmitting/receiving signals in multiple-input multiple-output communication system provided with plurality of antenna elements |
KR200260860Y1 (en) | 2001-10-25 | 2002-01-17 | 김지환 | Collapsible charger for portable phone |
US20030125040A1 (en) | 2001-11-06 | 2003-07-03 | Walton Jay R. | Multiple-access multiple-input multiple-output (MIMO) communication system |
US7095987B2 (en) * | 2001-11-15 | 2006-08-22 | Texas Instruments Incorporated | Method and apparatus for received uplinked-signal based adaptive downlink diversity within a communication system |
US6760388B2 (en) * | 2001-12-07 | 2004-07-06 | Qualcomm Incorporated | Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems |
JP3992489B2 (en) * | 2001-12-12 | 2007-10-17 | 株式会社エヌ・ティ・ティ・ドコモ | Wireless communication method and apparatus |
US20030112745A1 (en) * | 2001-12-17 | 2003-06-19 | Xiangyang Zhuang | Method and system of operating a coded OFDM communication system |
JP2003198645A (en) * | 2001-12-27 | 2003-07-11 | Sharp Corp | Transmitter and communication system using the same |
BR0306718A (en) | 2002-01-04 | 2004-12-28 | Nokia Corp | Methods and apparatus for transmitting complex symbols and for receiving a signal, a system comprising a transmitter and a receiver and transmission code matrix |
US7020110B2 (en) * | 2002-01-08 | 2006-03-28 | Qualcomm Incorporated | Resource allocation for MIMO-OFDM communication systems |
EP1469686B1 (en) | 2002-01-18 | 2013-05-29 | Fujitsu Limited | Method and apparatus for controlling feedback in closed loop transmission diversity |
US7076263B2 (en) | 2002-02-19 | 2006-07-11 | Qualcomm, Incorporated | Power control for partial channel-state information (CSI) multiple-input, multiple-output (MIMO) systems |
US6862271B2 (en) * | 2002-02-26 | 2005-03-01 | Qualcomm Incorporated | Multiple-input, multiple-output (MIMO) systems with multiple transmission modes |
US6636568B2 (en) | 2002-03-01 | 2003-10-21 | Qualcomm | Data transmission with non-uniform distribution of data rates for a multiple-input multiple-output (MIMO) system |
US6785520B2 (en) * | 2002-03-01 | 2004-08-31 | Cognio, Inc. | System and method for antenna diversity using equal power joint maximal ratio combining |
US20030181211A1 (en) * | 2002-03-19 | 2003-09-25 | Javad Razavilar | Method and apparatus for dynamic channel selection in wireless modems |
JP3881266B2 (en) | 2002-03-19 | 2007-02-14 | 松下電器産業株式会社 | Time code signal transmission method and time code signal transmission apparatus |
US7197084B2 (en) | 2002-03-27 | 2007-03-27 | Qualcomm Incorporated | Precoding for a multipath channel in a MIMO system |
US6847805B2 (en) | 2002-03-29 | 2005-01-25 | Lucent Technologies Inc. | Method for closed-loop subspace transmission and reception in a two transmit N-receive antenna system |
US6741587B2 (en) * | 2002-04-02 | 2004-05-25 | Nokia Corporation | Inter-frequency measurements with MIMO terminals |
US6801580B2 (en) * | 2002-04-09 | 2004-10-05 | Qualcomm, Incorporated | Ordered successive interference cancellation receiver processing for multipath channels |
KR100896682B1 (en) | 2002-04-09 | 2009-05-14 | 삼성전자주식회사 | Mobile communication apparatus and method having transmitting/receiving multiantenna |
US6711528B2 (en) * | 2002-04-22 | 2004-03-23 | Harris Corporation | Blind source separation utilizing a spatial fourth order cumulant matrix pencil |
US7522673B2 (en) | 2002-04-22 | 2009-04-21 | Regents Of The University Of Minnesota | Space-time coding using estimated channel information |
KR100511292B1 (en) * | 2002-04-30 | 2005-08-31 | 엘지전자 주식회사 | Update method for beamforming weight vector of rake receiver and receiving apparatus using beamforming weight vector |
EP1359684A1 (en) | 2002-04-30 | 2003-11-05 | Motorola Energy Systems Inc. | Wireless transmission using an adaptive transmit antenna array |
US6847306B2 (en) | 2002-05-17 | 2005-01-25 | Keyvan T. Diba | Emergency traffic signal attachment |
US6810506B1 (en) | 2002-05-20 | 2004-10-26 | Synopsys, Inc. | Methodology for stitching reduced-order models of interconnects together |
US7327800B2 (en) | 2002-05-24 | 2008-02-05 | Vecima Networks Inc. | System and method for data detection in wireless communication systems |
GB0212165D0 (en) * | 2002-05-27 | 2002-07-03 | Nokia Corp | A wireless system |
FI20021013A0 (en) | 2002-05-29 | 2002-05-29 | Nokia Corp | Procedure for data communication and data transmission systems |
KR100548311B1 (en) | 2002-06-07 | 2006-02-02 | 엘지전자 주식회사 | Transmission diversity apparatus and method for mobile communication system |
JP2004023416A (en) | 2002-06-17 | 2004-01-22 | Matsushita Electric Ind Co Ltd | Directivity forming apparatus and method therefor |
US7061967B2 (en) | 2002-06-24 | 2006-06-13 | Comsys Communication & Signal Processing Ltd. | Multipath channel tap delay estimation in a CDMA spread spectrum receiver |
US7095709B2 (en) | 2002-06-24 | 2006-08-22 | Qualcomm, Incorporated | Diversity transmission modes for MIMO OFDM communication systems |
US7613248B2 (en) | 2002-06-24 | 2009-11-03 | Qualcomm Incorporated | Signal processing with channel eigenmode decomposition and channel inversion for MIMO systems |
US7301924B1 (en) * | 2002-07-15 | 2007-11-27 | Cisco Technology, Inc. | Media access control for MIMO wireless network |
JP3677492B2 (en) | 2002-07-31 | 2005-08-03 | 松下電器産業株式会社 | Multicarrier transmission apparatus and multicarrier transmission method |
US7092737B2 (en) * | 2002-07-31 | 2006-08-15 | Mitsubishi Electric Research Laboratories, Inc. | MIMO systems with rate feedback and space time transmit diversity |
JP4098027B2 (en) | 2002-08-01 | 2008-06-11 | 松下電器産業株式会社 | Wireless base station equipment |
US7394754B2 (en) * | 2002-08-01 | 2008-07-01 | Mediatek Inc. | System and method for transmitting data in a multiple-branch transmitter-diversity orthogonal frequency-division multiplexing (OFDM) system |
US6940917B2 (en) * | 2002-08-27 | 2005-09-06 | Qualcomm, Incorporated | Beam-steering and beam-forming for wideband MIMO/MISO systems |
US7529177B2 (en) | 2002-08-28 | 2009-05-05 | Agere Systems Inc. | Dithering scheme using multiple antennas for OFDM systems |
ATE377878T1 (en) | 2002-09-05 | 2007-11-15 | Mitsubishi Electric Inf Tech | MC-CDMA DOWNWARD BEAM FORMATION METHOD WHERE THE ANTENNA ELEMENT WEIGHTS ARE USER AND FREQUENCY INDIVIDUAL AND ADJUSTED TO MAXIMIZE THE SIGNAL INTERFERENCE AND NOISE RATIO |
US7031669B2 (en) | 2002-09-10 | 2006-04-18 | Cognio, Inc. | Techniques for correcting for phase and amplitude offsets in a MIMO radio device |
US7039004B2 (en) | 2002-10-01 | 2006-05-02 | Atheros Communications, Inc. | Decision feedback channel estimation and pilot tracking for OFDM systems |
US6873606B2 (en) | 2002-10-16 | 2005-03-29 | Qualcomm, Incorporated | Rate adaptive transmission scheme for MIMO systems |
US20040081263A1 (en) * | 2002-10-24 | 2004-04-29 | Lee King F. | Method and apparatus for receiving diversity transmissions |
US7324429B2 (en) | 2002-10-25 | 2008-01-29 | Qualcomm, Incorporated | Multi-mode terminal in a wireless MIMO system |
US7151809B2 (en) | 2002-10-25 | 2006-12-19 | Qualcomm, Incorporated | Channel estimation and spatial processing for TDD MIMO systems |
US7002900B2 (en) | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
US8134976B2 (en) * | 2002-10-25 | 2012-03-13 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US8208364B2 (en) * | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
US8320301B2 (en) * | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
US7317750B2 (en) * | 2002-10-31 | 2008-01-08 | Lot 41 Acquisition Foundation, Llc | Orthogonal superposition coding for direct-sequence communications |
US7099698B2 (en) * | 2002-11-04 | 2006-08-29 | Vivato, Inc. | Complementary beamforming methods and apparatuses |
US7057555B2 (en) * | 2002-11-27 | 2006-06-06 | Cisco Technology, Inc. | Wireless LAN with distributed access points for space management |
US7280625B2 (en) | 2002-12-11 | 2007-10-09 | Qualcomm Incorporated | Derivation of eigenvectors for spatial processing in MIMO communication systems |
US7024166B2 (en) | 2002-12-18 | 2006-04-04 | Qualcomm, Incorporated | Transmission diversity systems |
US7200631B2 (en) * | 2003-01-10 | 2007-04-03 | Lucent Technologies Inc. | Method and apparatus for determining an inverse square root of a given positive-definite hermitian matrix |
US20040157645A1 (en) | 2003-02-12 | 2004-08-12 | Smith Adrian David | System and method of operation an array antenna in a distributed wireless communication network |
US7386057B2 (en) * | 2003-02-20 | 2008-06-10 | Nec Corporation | Iterative soft interference cancellation and filtering for spectrally efficient high-speed transmission in MIMO systems |
US7130580B2 (en) * | 2003-03-20 | 2006-10-31 | Lucent Technologies Inc. | Method of compensating for correlation between multiple antennas |
US7327795B2 (en) | 2003-03-31 | 2008-02-05 | Vecima Networks Inc. | System and method for wireless communication systems |
US7099678B2 (en) * | 2003-04-10 | 2006-08-29 | Ipr Licensing, Inc. | System and method for transmit weight computation for vector beamforming radio communication |
US7385617B2 (en) * | 2003-05-07 | 2008-06-10 | Illinois Institute Of Technology | Methods for multi-user broadband wireless channel estimation |
US7079870B2 (en) * | 2003-06-09 | 2006-07-18 | Ipr Licensing, Inc. | Compensation techniques for group delay effects in transmit beamforming radio communication |
WO2005006638A2 (en) * | 2003-06-18 | 2005-01-20 | University Of Florida | Wireless lan compatible multi-input multi-output system |
GB0317147D0 (en) * | 2003-07-22 | 2003-08-27 | Dalton Stephen | "GAM"- Gravity-air-motion |
KR100584321B1 (en) * | 2003-08-02 | 2006-05-26 | 삼성전자주식회사 | Tdma type transceiver having cartesian feedback loop circuit |
KR100575993B1 (en) | 2003-08-07 | 2006-05-02 | 삼성전자주식회사 | Method and apparatus for scheduling multi-user in wireless communication system using multiple transmit/receive antenna |
US7065144B2 (en) | 2003-08-27 | 2006-06-20 | Qualcomm Incorporated | Frequency-independent spatial processing for wideband MISO and MIMO systems |
US7452909B2 (en) | 2003-09-04 | 2008-11-18 | Hoffman-La Roche Inc. | Imidazole derivatives |
US7356073B2 (en) * | 2003-09-10 | 2008-04-08 | Nokia Corporation | Method and apparatus providing an advanced MIMO receiver that includes a signal-plus-residual-interference (SPRI) detector |
US7742546B2 (en) | 2003-10-08 | 2010-06-22 | Qualcomm Incorporated | Receiver spatial processing for eigenmode transmission in a MIMO system |
US7298805B2 (en) | 2003-11-21 | 2007-11-20 | Qualcomm Incorporated | Multi-antenna transmission for spatial division multiple access |
US7302009B2 (en) * | 2003-12-17 | 2007-11-27 | Qualcomm Incorporated | Broadcast transmission with spatial spreading in a multi-antenna communication system |
US8204149B2 (en) | 2003-12-17 | 2012-06-19 | Qualcomm Incorporated | Spatial spreading in a multi-antenna communication system |
US7778425B2 (en) * | 2003-12-24 | 2010-08-17 | Nokia Corporation | Method for generating noise references for generalized sidelobe canceling |
US7194042B2 (en) * | 2004-01-13 | 2007-03-20 | Qualcomm Incorporated | Data transmission with spatial spreading in a mimo communication system |
US7336746B2 (en) | 2004-12-09 | 2008-02-26 | Qualcomm Incorporated | Data transmission with spatial spreading in a MIMO communication system |
US8169889B2 (en) | 2004-02-18 | 2012-05-01 | Qualcomm Incorporated | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
US20050180312A1 (en) * | 2004-02-18 | 2005-08-18 | Walton J. R. | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
US7206354B2 (en) | 2004-02-19 | 2007-04-17 | Qualcomm Incorporated | Calibration of downlink and uplink channel responses in a wireless MIMO communication system |
CN106160830B (en) | 2004-03-15 | 2020-02-14 | 苹果公司 | Pilot design for OFDM system with four transmit antennas |
US7447268B2 (en) * | 2004-03-31 | 2008-11-04 | Intel Corporation | OFDM system with per subcarrier phase rotation |
US7583747B1 (en) * | 2004-03-31 | 2009-09-01 | University Of Alberta | Method of systematic construction of space-time constellations, system and method of transmitting space-time constellations |
US20050238111A1 (en) | 2004-04-09 | 2005-10-27 | Wallace Mark S | Spatial processing with steering matrices for pseudo-random transmit steering in a multi-antenna communication system |
US7555053B2 (en) * | 2004-04-14 | 2009-06-30 | Broadcom Corporation | Long training sequence for MIMO WLAN systems |
US7564814B2 (en) | 2004-05-07 | 2009-07-21 | Qualcomm, Incorporated | Transmission mode and rate selection for a wireless communication system |
US8285226B2 (en) | 2004-05-07 | 2012-10-09 | Qualcomm Incorporated | Steering diversity for an OFDM-based multi-antenna communication system |
US8923785B2 (en) | 2004-05-07 | 2014-12-30 | Qualcomm Incorporated | Continuous beamforming for a MIMO-OFDM system |
US20050267925A1 (en) | 2004-05-28 | 2005-12-01 | Clue Vladimir I | Methods and apparatus for transforming amplitude-frequency signal characteristics and interpolating analytical functions using circulant matrices |
US8619907B2 (en) | 2004-06-10 | 2013-12-31 | Agere Systems, LLC | Method and apparatus for preamble training in a multiple antenna communication system |
US7110463B2 (en) * | 2004-06-30 | 2006-09-19 | Qualcomm, Incorporated | Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system |
US7978649B2 (en) | 2004-07-15 | 2011-07-12 | Qualcomm, Incorporated | Unified MIMO transmission and reception |
US7894548B2 (en) * | 2004-09-03 | 2011-02-22 | Qualcomm Incorporated | Spatial spreading with space-time and space-frequency transmit diversity schemes for a wireless communication system |
US7978778B2 (en) * | 2004-09-03 | 2011-07-12 | Qualcomm, Incorporated | Receiver structures for spatial spreading with space-time or space-frequency transmit diversity |
US7539253B2 (en) | 2004-09-10 | 2009-05-26 | Intel Corporation | Interpolation in channel state feedback |
US7289770B2 (en) | 2004-09-28 | 2007-10-30 | Intel Corporation | Compact feedback for closed loop MIMO |
US7656842B2 (en) | 2004-09-30 | 2010-02-02 | Motorola, Inc. | Method and apparatus for MIMO transmission optimized for successive cancellation receivers |
US7711762B2 (en) | 2004-11-15 | 2010-05-04 | Qualcomm Incorporated | Efficient computation for eigenvalue decomposition and singular value decomposition of matrices |
US7895254B2 (en) | 2004-11-15 | 2011-02-22 | Qualcomm Incorporated | Eigenvalue decomposition and singular value decomposition of matrices using Jacobi rotation |
US7974359B2 (en) | 2004-12-22 | 2011-07-05 | Qualcomm Incorporated | Methods and apparatus for mitigating multi-antenna correlation effect in communication systems |
US20060285531A1 (en) | 2005-06-16 | 2006-12-21 | Howard Steven J | Efficient filter weight computation for a MIMO system |
US7548730B2 (en) | 2006-03-16 | 2009-06-16 | Intel Corporation | Systems and methods for improving performance of multiple spatial communication channels |
US8543070B2 (en) | 2006-04-24 | 2013-09-24 | Qualcomm Incorporated | Reduced complexity beam-steered MIMO OFDM system |
US7787554B1 (en) | 2006-05-02 | 2010-08-31 | Marvell International Ltd. | Beamforming to a subset of receive antennas in a wireless MIMO communication system |
US8290089B2 (en) | 2006-05-22 | 2012-10-16 | Qualcomm Incorporated | Derivation and feedback of transmit steering matrix |
-
2004
- 2004-03-05 US US10/794,918 patent/US8169889B2/en active Active
-
2005
- 2005-03-03 RU RU2006135107/09A patent/RU2368079C2/en active
- 2005-03-03 AU AU2005222327A patent/AU2005222327A1/en not_active Abandoned
- 2005-03-03 CN CN200580014099A patent/CN100586041C/en active Active
- 2005-03-03 BR BRPI0508412-1A patent/BRPI0508412A/en not_active IP Right Cessation
- 2005-03-03 KR KR1020067020889A patent/KR100855919B1/en active IP Right Grant
- 2005-03-03 CA CA002558542A patent/CA2558542A1/en not_active Abandoned
- 2005-03-03 EP EP05724541A patent/EP1751883A1/en not_active Withdrawn
- 2005-03-03 MX MXPA06010070A patent/MXPA06010070A/en active IP Right Grant
- 2005-03-03 JP JP2007501999A patent/JP4537445B2/en active Active
- 2005-03-03 WO PCT/US2005/007020 patent/WO2005088863A1/en active Application Filing
- 2005-03-04 TW TW094106644A patent/TWI394389B/en active
-
2006
- 2006-09-04 IL IL177884A patent/IL177884A0/en unknown
-
2010
- 2010-04-06 JP JP2010087967A patent/JP4944224B2/en active Active
-
2012
- 2012-05-01 US US13/461,707 patent/US8520498B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6452981B1 (en) * | 1996-08-29 | 2002-09-17 | Cisco Systems, Inc | Spatio-temporal processing for interference handling |
WO2001076110A2 (en) * | 2000-03-30 | 2001-10-11 | Qualcomm Incorporated | Method and apparatus for measuring channel state information |
WO2003015334A1 (en) * | 2001-08-09 | 2003-02-20 | Nokia Corporation | Diversity transmitter and diversity transmission method |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8971222B2 (en) | 2005-10-27 | 2015-03-03 | Qualcomm Incorporated | Method and apparatus for decrementing assignments in wireless communication systems |
US9125078B2 (en) | 2005-10-27 | 2015-09-01 | Qualcomm Incorporated | Method and apparatus for setting reverse link CQI reporting modes in wireless communication system |
JP2010504051A (en) * | 2006-09-15 | 2010-02-04 | クゥアルコム・インコーポレイテッド | Method and apparatus associated with a multi-mode wireless communication device supporting both wide area network signaling and peer-to-peer signaling |
US8369800B2 (en) | 2006-09-15 | 2013-02-05 | Qualcomm Incorporated | Methods and apparatus related to power control and/or interference management in a mixed wireless communications system |
US8452317B2 (en) | 2006-09-15 | 2013-05-28 | Qualcomm Incorporated | Methods and apparatus related to power control and/or interference management in a mixed wireless communications system supporting WAN signaling and peer to peer signaling |
US8634869B2 (en) | 2006-09-15 | 2014-01-21 | Qualcomm Incorporated | Methods and apparatus related to multi-mode wireless communications device supporting both wide area network signaling and peer to peer signaling |
US8929281B2 (en) | 2006-09-15 | 2015-01-06 | Qualcomm Incorporated | Methods and apparatus related to peer to peer device |
US9119163B2 (en) | 2006-09-15 | 2015-08-25 | Qualcomm Incorporated | Methods and apparatus related to power control and/or interference management in a mixed wireless communications system |
EP2398289A3 (en) * | 2010-06-16 | 2017-05-03 | Harris Corporation | Wireless communication system with selective preamble synchronization portion and related methods |
Also Published As
Publication number | Publication date |
---|---|
TWI394389B (en) | 2013-04-21 |
RU2368079C2 (en) | 2009-09-20 |
AU2005222327A1 (en) | 2005-09-22 |
CN1951031A (en) | 2007-04-18 |
JP4537445B2 (en) | 2010-09-01 |
US8520498B2 (en) | 2013-08-27 |
KR100855919B1 (en) | 2008-09-02 |
CA2558542A1 (en) | 2005-09-22 |
KR20060128047A (en) | 2006-12-13 |
JP4944224B2 (en) | 2012-05-30 |
US20100002570A9 (en) | 2010-01-07 |
JP2007527673A (en) | 2007-09-27 |
EP1751883A1 (en) | 2007-02-14 |
BRPI0508412A (en) | 2007-07-24 |
RU2006135107A (en) | 2008-04-10 |
JP2010200342A (en) | 2010-09-09 |
TW200618512A (en) | 2006-06-01 |
US20120213181A1 (en) | 2012-08-23 |
US20050195733A1 (en) | 2005-09-08 |
CN100586041C (en) | 2010-01-27 |
US8169889B2 (en) | 2012-05-01 |
IL177884A0 (en) | 2006-12-31 |
MXPA06010070A (en) | 2006-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5053647B2 (en) | Transmit diversity and spatial spreading for OFDM-based multi-antenna communication systems | |
US8520498B2 (en) | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system | |
US7352819B2 (en) | Multiantenna communications apparatus, methods, and system | |
EP2257008B1 (en) | Method and transmitter for broadcast transmission with spatial spreading in a multi-antenna communication system | |
AU2003287291C1 (en) | MIMO WLAN system | |
AU2009200283A1 (en) | Data transmission with spatial spreading in a MIMO communication system | |
EP1933513B1 (en) | Method and transmitter for broadcast transmission with spatial spreading in a multi-antenna communication system | |
KR100828466B1 (en) | Broadcast transmission with spatial spreading in a multi-antenna communication system | |
MXPA06009490A (en) | Transmit diversity and spatial spreading for an ofdm-based multi-antenna communication system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 1200601639 Country of ref document: VN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DPEN | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 177884 Country of ref document: IL Ref document number: PA/a/2006/010070 Country of ref document: MX Ref document number: 2005724541 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2558542 Country of ref document: CA Ref document number: 2007501999 Country of ref document: JP Ref document number: 12006501733 Country of ref document: PH |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 5163/DELNP/2006 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020067020889 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006135107 Country of ref document: RU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580014099.X Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067020889 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2005724541 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: PI0508412 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 2005222327 Country of ref document: AU Date of ref document: 20050303 Kind code of ref document: A |