KR101126812B1 - 다중 안테나 통신 시스템에서의 데이터 전송 방법, 수신 방법, 송신기 및 수신기 - Google Patents

다중 안테나 통신 시스템에서의 데이터 전송 방법, 수신 방법, 송신기 및 수신기 Download PDF

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KR101126812B1
KR101126812B1 KR1020067025983A KR20067025983A KR101126812B1 KR 101126812 B1 KR101126812 B1 KR 101126812B1 KR 1020067025983 A KR1020067025983 A KR 1020067025983A KR 20067025983 A KR20067025983 A KR 20067025983A KR 101126812 B1 KR101126812 B1 KR 101126812B1
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preamble
training field
legacy
long
transmit antennas
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KR20070020505A (ko
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시에드 아온 무즈타바
시아오웬 왕
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에이저 시스템즈 인크
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Assigned to 아바고 테크놀로지스 제너럴 아이피 (싱가포르) 피티이 리미티드 reassignment 아바고 테크놀로지스 제너럴 아이피 (싱가포르) 피티이 리미티드 권리의 전부이전등록 Assignors: 에이저 시스템즈 엘엘시
Assigned to 아바고 테크놀로지스 인터내셔널 세일즈 피티이 리미티드 reassignment 아바고 테크놀로지스 인터내셔널 세일즈 피티이 리미티드 권리의 전부이전등록 Assignors: 아바고 테크놀로지스 제너럴 아이피 (싱가포르) 피티이 리미티드
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    • 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
    • H04B7/0667—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 delayed 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
    • H04B7/0684—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 training sequences per antenna
    • 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
    • H04B7/0851—Joint weighting using training sequences or error signal

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
KR1020067025983A 2004-06-10 2005-04-28 다중 안테나 통신 시스템에서의 데이터 전송 방법, 수신 방법, 송신기 및 수신기 Expired - Fee Related KR101126812B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US57877604P 2004-06-10 2004-06-10
US60/578,776 2004-06-10
US11/043,025 US8619907B2 (en) 2004-06-10 2005-01-24 Method and apparatus for preamble training in a multiple antenna communication system
US11/043,025 2005-01-24
PCT/US2005/014407 WO2006001898A1 (en) 2004-06-10 2005-04-28 Method and apparatus for preamble training in a multiple antenna communication system

Publications (2)

Publication Number Publication Date
KR20070020505A KR20070020505A (ko) 2007-02-21
KR101126812B1 true KR101126812B1 (ko) 2012-03-26

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KR1020067025983A Expired - Fee Related KR101126812B1 (ko) 2004-06-10 2005-04-28 다중 안테나 통신 시스템에서의 데이터 전송 방법, 수신 방법, 송신기 및 수신기

Country Status (6)

Country Link
US (1) US8619907B2 (https=)
EP (2) EP1754319A1 (https=)
JP (2) JP5345317B2 (https=)
KR (1) KR101126812B1 (https=)
CN (1) CN1918818B (https=)
WO (1) WO2006001898A1 (https=)

Families Citing this family (269)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7295509B2 (en) 2000-09-13 2007-11-13 Qualcomm, Incorporated Signaling method in an OFDM multiple access system
US9130810B2 (en) 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US8204149B2 (en) 2003-12-17 2012-06-19 Qualcomm Incorporated Spatial spreading in a multi-antenna communication system
US7336746B2 (en) 2004-12-09 2008-02-26 Qualcomm Incorporated Data transmission with spatial spreading in a MIMO communication system
US7590189B2 (en) * 2004-02-13 2009-09-15 Broadcom Corporation Signaling format for wireless communications
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
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
US7616695B1 (en) 2004-06-17 2009-11-10 Marvell International Ltd. MIMO equalizer design: an algorithmic perspective
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
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
SG155203A1 (en) * 2004-08-13 2009-09-30 Agency Science Tech & Res Method for determining a residual frequency offset, communication system, method for transmitting a message, transmitter, method for processing a message and receiver
US7081597B2 (en) * 2004-09-03 2006-07-25 The Esab Group, Inc. Electrode and electrode holder with threaded connection
US7978778B2 (en) 2004-09-03 2011-07-12 Qualcomm, Incorporated Receiver structures for spatial spreading with space-time or space-frequency transmit diversity
JP3754441B1 (ja) * 2004-09-10 2006-03-15 三洋電機株式会社 受信方法ならびに装置およびそれを利用した通信システム
US20060067263A1 (en) * 2004-09-30 2006-03-30 Qinghua Li Techniques to manage multiple receivers
US20060072681A1 (en) * 2004-10-01 2006-04-06 Texas Instruments Incorporated Scalable gain retraining generator, method of gain retraining and multiple-input, multiple-output communications system employing the generator or method
US8737189B2 (en) * 2005-02-16 2014-05-27 Broadcom Corporation Method and system for compromise greenfield preambles for 802.11n
US7826547B2 (en) * 2004-10-26 2010-11-02 Broadcom Corporation Mixed mode preamble for MIMO wireless communications
US7830980B2 (en) * 2004-12-07 2010-11-09 Intel Corporation System and method capable of implicit feedback for the devices with an unequal number of transmitter and receiver chains in a wireless local area network
AU2005319950B2 (en) * 2004-12-23 2010-07-01 Electronics And Telecommunications Research Institute Apparatus for transmitting and receiving data to provide high-speed data comunication and method thereof
JP2006186427A (ja) * 2004-12-24 2006-07-13 Toshiba Corp 無線通信方法及び装置
EP1843499B1 (en) * 2005-01-17 2018-04-18 Sharp Kabushiki Kaisha Stable transmission and reliable reception of plurality of signal streams in a MIMO communication system
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
US8995547B2 (en) * 2005-03-11 2015-03-31 Qualcomm Incorporated Systems and methods for reducing uplink resources to provide channel performance feedback for adjustment of downlink MIMO channel data rates
US9154211B2 (en) 2005-03-11 2015-10-06 Qualcomm Incorporated Systems and methods for beamforming feedback in multi antenna communication systems
US8724740B2 (en) 2005-03-11 2014-05-13 Qualcomm Incorporated Systems and methods for reducing uplink resources to provide channel performance feedback for adjustment of downlink MIMO channel data rates
US8446892B2 (en) 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US9461859B2 (en) 2005-03-17 2016-10-04 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
US9520972B2 (en) 2005-03-17 2016-12-13 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US7978759B1 (en) * 2005-03-24 2011-07-12 Marvell International Ltd. Scalable equalizer for multiple-in-multiple-out (MIMO) wireless transmission
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
US8085871B2 (en) * 2005-04-21 2011-12-27 Broadcom Corporation Adaptive modulation in a multiple input multiple output wireless communication system with optional beamforming
EP1718021B1 (en) * 2005-04-29 2010-03-17 Sony Deutschland GmbH Receiving device and communication method for an OFDM communication system with a new preamble structure
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
US8879511B2 (en) 2005-10-27 2014-11-04 Qualcomm Incorporated Assignment acknowledgement for a wireless communication system
US8462859B2 (en) 2005-06-01 2013-06-11 Qualcomm Incorporated Sphere decoding apparatus
MY140798A (en) * 2005-06-09 2010-01-15 Samsung Electronics Co Ltd Method and apparatus for receiving data with down compatibility in high throughput wireless network
US8599945B2 (en) 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US9179319B2 (en) * 2005-06-16 2015-11-03 Qualcomm Incorporated Adaptive sectorization in cellular systems
US8885628B2 (en) 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
US8073068B2 (en) 2005-08-22 2011-12-06 Qualcomm Incorporated Selective virtual antenna transmission
US20070041457A1 (en) 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
US9209956B2 (en) 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
US7855993B2 (en) * 2005-08-23 2010-12-21 Agere Systems Inc. Method and apparatus for reducing power fluctuations during preamble training in a multiple antenna communication system using cyclic delays
US7742390B2 (en) * 2005-08-23 2010-06-22 Agere Systems Inc. Method and apparatus for improved long preamble formats in a multiple antenna communication system
US7742389B2 (en) * 2005-08-23 2010-06-22 Agere Systems Inc. Method and apparatus for improved short preamble formats in a multiple antenna communication system
US7711061B2 (en) * 2005-08-24 2010-05-04 Broadcom Corporation Preamble formats supporting high-throughput MIMO WLAN and auto-detection
US8644292B2 (en) 2005-08-24 2014-02-04 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US9136974B2 (en) 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
US9088384B2 (en) 2005-10-27 2015-07-21 Qualcomm Incorporated Pilot symbol transmission in wireless communication systems
US8582509B2 (en) 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9210651B2 (en) 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US9225488B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Shared signaling channel
US9144060B2 (en) 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US8045512B2 (en) * 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9172453B2 (en) 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US8693405B2 (en) 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US20070189412A1 (en) * 2006-02-15 2007-08-16 Samsung Electronics Co., Ltd. Method and system for sounding packet exchange in wireless communication systems
US8694030B2 (en) 2006-03-24 2014-04-08 Agere Systems Llc Method and apparatus for improved antenna isolation for per-antenna training using transmit/receive switch
US7742770B2 (en) * 2006-03-24 2010-06-22 Agere Systems Inc. Method and apparatus for improved antenna isolation for per-antenna training using variable scaling
US8543070B2 (en) 2006-04-24 2013-09-24 Qualcomm Incorporated Reduced complexity beam-steered MIMO OFDM system
US8290089B2 (en) 2006-05-22 2012-10-16 Qualcomm Incorporated Derivation and feedback of transmit steering matrix
US7995665B2 (en) * 2006-06-26 2011-08-09 Ralink Technology (Singapore) Corporation Pte. Ltd. Method and apparatus for reception in a multi-input-multi-output (MIMO) orthogonal frequency domain modulation (OFDM) wireless communication system
US7995672B2 (en) * 2006-06-26 2011-08-09 Ralink Technology (Singapore) Corporation Pte. Ltd. Method and apparatus for reception in a multi-input-multi-output (MIMO) orthogonal frequency domain modulation (OFDM) wireless communication system
US7860128B2 (en) * 2006-06-28 2010-12-28 Samsung Electronics Co., Ltd. System and method for wireless communication of uncompressed video having a preamble design
KR20090071582A (ko) * 2006-09-06 2009-07-01 콸콤 인코포레이티드 그룹화된 안테나들에 대한 코드워드 치환 및 감소된 피드백
US8112038B2 (en) * 2006-09-15 2012-02-07 Futurewei Technologies, Inc. Beamforming with imperfect channel state information
US7983352B2 (en) * 2006-09-15 2011-07-19 Futurewei Technologies, Inc. Power allocation in a MIMO system without channel state information feedback
US8027300B2 (en) * 2006-10-17 2011-09-27 Qualcomm Incorporated VCO ringing correction in packet switched wireless networks
US7813442B2 (en) * 2006-10-30 2010-10-12 Broadcom Corporation MIMO channel estimation in presence of carrier frequency offset
US8725142B1 (en) 2006-10-31 2014-05-13 Marvell International Ltd. Channel scanning method and apparatus
US7898478B2 (en) * 2007-02-28 2011-03-01 Samsung Electronics Co., Ltd. Method and system for analog beamforming in wireless communication systems
US9344897B2 (en) * 2007-03-13 2016-05-17 Qualcomm Incorporated Estimating timing and frequency information for multiple channel wireless communication systems
US7796706B2 (en) * 2007-03-15 2010-09-14 Nokia Corporation Digital broadcast service discovery correlation
WO2008114170A1 (en) * 2007-03-19 2008-09-25 Koninklijke Philips Electronics, N.V. Backward-compatible preamble design for sub-band bonding in a multi-band ofdm communcation system
WO2008116181A2 (en) 2007-03-22 2008-09-25 Marvell Semiconductor Inc. Variable codebook for mimo system
WO2008134420A2 (en) 2007-04-25 2008-11-06 Marvell World Trade Ltd. Power amplifier adjustment for transmit beamforming in multi-antenna wireless systems
US8130858B1 (en) 2007-05-30 2012-03-06 Marvell International Ltd. Method and apparatus for implementing transmit diversity in OFDM systems
CN101755391B (zh) 2007-07-18 2013-08-07 马维尔国际贸易有限公司 具有用于多个客户站的独立数据的同步下行链路传输的接入点
US8149811B2 (en) 2007-07-18 2012-04-03 Marvell World Trade Ltd. Wireless network with simultaneous uplink transmission of independent data from multiple client stations
US7714783B2 (en) * 2007-08-02 2010-05-11 Samsung Electronics Co., Ltd. Method and system for analog beamforming in wireless communications
US7929918B2 (en) * 2007-08-13 2011-04-19 Samsung Electronics Co., Ltd. System and method for training the same type of directional antennas that adapts the training sequence length to the number of antennas
US7714781B2 (en) * 2007-09-05 2010-05-11 Samsung Electronics Co., Ltd. Method and system for analog beamforming in wireless communication systems
US8908667B1 (en) 2007-09-07 2014-12-09 Marvell International Ltd. Method and apparatus for antenna path selection for multiple wireless communication components
WO2009049267A1 (en) * 2007-10-12 2009-04-16 Beceem Communications Inc. A method of a receiver estimating a plurality of channels
US20090116574A1 (en) * 2007-11-06 2009-05-07 Qualcomm Incorporated Methods and apparatus for receive power unification for mimo and non-mimo signaling
US20090121935A1 (en) * 2007-11-12 2009-05-14 Samsung Electronics Co., Ltd. System and method of weighted averaging in the estimation of antenna beamforming coefficients
JP5006172B2 (ja) * 2007-12-04 2012-08-22 パナソニック株式会社 無線通信方法及び無線通信システム
US8483235B2 (en) 2007-12-11 2013-07-09 Electronics And Telecommunications Research Institute Apparatus and method for channel estimation in MIMO systems
KR101006395B1 (ko) * 2007-12-11 2011-01-10 한국전자통신연구원 다중 안테나 무선 통신시스템에서의 채널 추정을 위한 송신기와 수신기 및 이에 적용되는 통신 방법
US8165595B2 (en) * 2008-01-25 2012-04-24 Samsung Electronics Co., Ltd. System and method for multi-stage antenna training of beamforming vectors
US8051037B2 (en) * 2008-01-25 2011-11-01 Samsung Electronics Co., Ltd. System and method for pseudorandom permutation for interleaving in wireless communications
US8280445B2 (en) * 2008-02-13 2012-10-02 Samsung Electronics Co., Ltd. System and method for antenna training of beamforming vectors by selective use of beam level training
JP5109707B2 (ja) * 2008-02-19 2012-12-26 コニカミノルタビジネステクノロジーズ株式会社 定着装置及び画像形成装置
TWI473484B (zh) * 2008-03-10 2015-02-11 Koninkl Philips Electronics Nv 用於多重輸入多重輸出（ｍｉｍｏ）通信系統的實體層收斂協定（ｐｌｃｐ）封包結構
US8417191B2 (en) * 2008-03-17 2013-04-09 Samsung Electronics Co., Ltd. Method and system for beamforming communication in high throughput wireless communication systems
US8055230B1 (en) 2008-03-25 2011-11-08 Marvell International Ltd. Low noise amplifier gain adaption based on a received signal strength indication of bluetooth and wlan signals
US8107545B2 (en) * 2008-04-30 2012-01-31 Samsung Electronics Co., Ltd. Method and system for phase tracking in wireless communication systems
US8478204B2 (en) * 2008-07-14 2013-07-02 Samsung Electronics Co., Ltd. System and method for antenna training of beamforming vectors having reuse of directional information
US8982889B2 (en) 2008-07-18 2015-03-17 Marvell World Trade Ltd. Preamble designs for sub-1GHz frequency bands
US8259825B2 (en) * 2008-08-08 2012-09-04 Motorola Mobility, Inc. Mapping and signaling of common reference symbols for multiple antennas
US8351519B2 (en) * 2008-08-15 2013-01-08 Qualcomm Incorporated Embedding information in an 802.11 signal field
US20100046656A1 (en) * 2008-08-20 2010-02-25 Qualcomm Incorporated Preamble extensions
US20100290449A1 (en) * 2008-08-20 2010-11-18 Qualcomm Incorporated Preamble extensions
US9252862B2 (en) * 2008-09-17 2016-02-02 Qualcomm Incorporated MIMO preamble for initial access with an unknown number of transmit antennas
US9590832B1 (en) 2008-09-23 2017-03-07 Marvell International Ltd. Sub-carrier adaptation in multi-carrier communication systems
US8218690B1 (en) 2008-09-29 2012-07-10 Qualcomm Atheros, Inc. Timing offset compensation for high throughput channel estimation
US8588052B1 (en) * 2008-10-06 2013-11-19 Ikanos Communications, Inc. Method and apparatus for DMT network data transfer
JP4636162B2 (ja) * 2008-10-10 2011-02-23 ソニー株式会社 無線通信装置及び無線通信方法
US8879516B2 (en) 2008-12-10 2014-11-04 Marvell World Trade Ltd Efficient formats of beacon, announcement, and beamforming training frames
US8335167B1 (en) 2009-02-02 2012-12-18 Marvell International Ltd. Refining beamforming techniques for phased-array antennas
US8509130B2 (en) 2009-02-24 2013-08-13 Marvell World Trade Ltd. Techniques for flexible and efficient beamforming
US9924512B1 (en) 2009-03-24 2018-03-20 Marvell International Ltd. OFDMA with block tone assignment for WLAN
KR101679173B1 (ko) 2009-04-10 2016-11-24 코닌클리케 필립스 엔.브이. 무선 시스템들에서 다중 안테나 통신들을 인에이블하기 위한 시스널링 방법 및 장치
JP5649011B2 (ja) * 2009-04-13 2015-01-07 マーベル ワールド トレード リミテッド Ｗｌａｎ用の物理層フレーム形式
US8599803B1 (en) 2009-05-01 2013-12-03 Marvell International Ltd. Open loop multiple access for WLAN
US8437440B1 (en) * 2009-05-28 2013-05-07 Marvell International Ltd. PHY frame formats in a system with more than four space-time streams
US8488539B2 (en) * 2009-07-16 2013-07-16 Ralink Technology Corp. Method of generating preamble sequence
US8693356B2 (en) * 2009-07-16 2014-04-08 Ralink Technology Corp. Method for wireless communication system and device using the same
TW201105057A (en) * 2009-07-16 2011-02-01 Ralink Technology Corp Method and apparatus for generating training sequences in wireless communication system
US8571010B1 (en) * 2009-07-21 2013-10-29 Marvell International Ltd. Simultaneous uplink transmission in a wireless network
US9706599B1 (en) 2009-07-23 2017-07-11 Marvell International Ltd. Long wireless local area network (WLAN) packets with midambles
US9596715B1 (en) * 2009-07-23 2017-03-14 Marvell International Ltd. Long wireless local area network (WLAN) packets with midambles
US9077594B2 (en) 2009-07-23 2015-07-07 Marvell International Ltd. Coexistence of a normal-rate physical layer and a low-rate physical layer in a wireless network
EP2460298A2 (en) 2009-07-29 2012-06-06 Marvell World Trade Ltd. Methods and apparatus for wlan transmission
US8472381B1 (en) 2009-08-14 2013-06-25 Marvell International Ltd. Methods and apparatus for antenna spoofing
US8660497B1 (en) 2009-08-18 2014-02-25 Marvell International Ltd. Beamsteering in a spatial division multiple access (SDMA) system
US8665949B1 (en) 2009-09-09 2014-03-04 Marvell International Ltd. Methods and apparatus for transmission of data at different modulation and/or coding rates
US8976674B2 (en) 2009-09-21 2015-03-10 Mediatek Inc. Method and system to detect packets of different formats
EP2491663B1 (en) * 2009-10-23 2015-07-29 Marvell World Trade Ltd. Training sequence indication for WLAN
WO2011056790A1 (en) 2009-11-03 2011-05-12 Marvell World Trade Ltd. Power saving in a communication device
US8472383B1 (en) 2009-11-24 2013-06-25 Marvell International Ltd. Group management in multiuser communications
US8886755B1 (en) 2009-12-09 2014-11-11 Marvell International Ltd. Method and apparatus for facilitating simultaneous transmission from multiple stations
WO2011083928A2 (ko) * 2010-01-08 2011-07-14 엘지전자 주식회사 Legacy asn과 연결된 16m 기지국에서 단말의 dcr mode를 지원하기 위한 방법
KR20110082685A (ko) * 2010-01-12 2011-07-20 삼성전자주식회사 다중 사용자 다중 입출력 시스템의 프리엠블 생성 방법 및 상기 방법이 채용된 데이터 전송 장치와 단말
TWI422192B (zh) * 2010-02-23 2014-01-01 聯發科技股份有限公司 用來偵測具有不同格式之封包之方法及系統
KR101643225B1 (ko) * 2010-02-23 2016-07-27 엘지전자 주식회사 무선 통신 시스템에서 사운딩 신호 송신 방법
KR101801943B1 (ko) * 2010-02-25 2017-11-27 한국전자통신연구원 다중 사용자 다중 안테나 기반 무선 통신 시스템에서 훈련 시퀀스 전송 방법 및 그 장치
US9444577B1 (en) 2010-04-05 2016-09-13 Marvell International Ltd. Calibration correction for implicit beamformer using an explicit beamforming technique in a wireless MIMO communication system
US8971178B1 (en) 2010-04-05 2015-03-03 Marvell International Ltd. Calibration correction for implicit beamformer using an explicit beamforming technique in a wireless MIMO communication system
US9397785B1 (en) 2010-04-12 2016-07-19 Marvell International Ltd. Error detection in a signal field of a WLAN frame header
US8665908B1 (en) 2010-05-11 2014-03-04 Marvell International Ltd. Signaling guard interval capability in a communication system
US9021341B1 (en) 2010-06-16 2015-04-28 Marvell International Ltd. LDPC coding in a communication system
KR101923200B1 (ko) 2010-06-16 2018-11-29 마벨 월드 트레이드 리미티드 통신 네트워크에서 하향링크 다중 사용자 ｍｉｍｏ 구성을 위한 대안적인 피드백 방법 및 시스템
EP2589177B8 (en) 2010-07-01 2019-01-09 Marvell International Ltd. Modulation of signal field in a wlan frame header
US9001908B2 (en) 2010-07-01 2015-04-07 Marvell World Trade Ltd. Orthogonal frequency division multiplexing (OFDM) symbol formats for a wireless local area network (WLAN)
US9252991B2 (en) 2010-08-10 2016-02-02 Marvell World Trade Ltd. Sub-band feedback for beamforming on downlink multiple user MIMO configurations
US8891597B1 (en) 2010-08-17 2014-11-18 Marvell International Ltd. Calibration for implicit transmit beamforming
JP6029110B2 (ja) 2010-09-01 2016-11-24 マーベル ワールド トレード リミテッド 通信ネットワークのリンク適合
KR101923202B1 (ko) 2010-09-29 2019-02-27 마벨 월드 트레이드 리미티드 통신 시스템에서 스트림 파싱
US8731090B2 (en) 2010-10-04 2014-05-20 Marvell World Trade Ltd. Compressed feedback format for WLAN
CN103155474B (zh) 2010-10-07 2017-09-08 马维尔国际贸易有限公司 无线通信系统中的音调重新排序
JP5936280B2 (ja) 2011-01-28 2016-06-22 マーベル ワールド トレード リミテッド 長距離無線ｌａｎの物理層フレーム形式
EP3327965B1 (en) 2011-02-04 2019-09-25 Marvell World Trade Ltd. Control mode phy for wlan
US9674317B2 (en) 2011-02-10 2017-06-06 Marvell World Trade Ltd. Multi-clock PHY preamble design and detection
EP2700271B1 (en) 2011-04-18 2017-08-23 Marvell World Trade Ltd. Reducing power consumption in an wireless communication system
CN103931131B (zh) 2011-05-26 2017-09-15 马维尔国际贸易有限公司 用于长范围wlan的探测分组格式
CN103718596B (zh) 2011-06-08 2018-02-23 马维尔国际贸易有限公司 用于低数据速率wlan的高效传输
CN103891342B (zh) 2011-08-18 2018-04-24 马维尔国际贸易有限公司 用于wlan的信号字段设计
EP2752066B1 (en) 2011-08-29 2016-09-14 Marvell World Trade Ltd. Coexistence of a normal-rate physical layer and a low-rate physical layer in a wireless network
US9398615B1 (en) 2011-09-07 2016-07-19 Marvell International Ltd. Carrier sensing and symbol timing in a WLAN system
US9154969B1 (en) 2011-09-29 2015-10-06 Marvell International Ltd. Wireless device calibration for implicit transmit
EP2774303B1 (en) 2011-11-02 2020-05-20 NXP USA, Inc. Method and apparatus for automatically detecting a physical layer (phy) mode of a data unit in a wireless local area network (wlan)
KR101863305B1 (ko) 2011-11-02 2018-05-31 마벨 월드 트레이드 리미티드 Wlan 송신 모드들 및 공존
US9155027B1 (en) 2011-11-23 2015-10-06 Marvell International Ltd. 802.11 enhanced distributed channel access
US9363122B2 (en) 2011-11-28 2016-06-07 Lg Electronics Inc. Method and apparatus for transmitting training field
US9351333B1 (en) 2011-11-30 2016-05-24 Marvell International Ltd. Long wireless local area network (WLAN) packets with midambles
US9019991B1 (en) 2011-12-08 2015-04-28 Marvell International Ltd. Method and apparatus for detecting a packet in a WLAN system
US9246738B2 (en) 2012-01-13 2016-01-26 Marvell World Trade Ltd. Single user and multi-user data unit formats in long-range wireless local area networks (WLANS)
WO2013119829A1 (en) 2012-02-07 2013-08-15 Marvell World Trade Ltd. Pilot sequence design for long range wlan
US9131528B2 (en) 2012-04-03 2015-09-08 Marvell World Trade Ltd. Physical layer frame format for WLAN
US9445349B1 (en) 2012-04-18 2016-09-13 Marvell International Ltd. 802.11ah duty cycle based channel access priorities
US9735855B2 (en) 2012-04-18 2017-08-15 Marvell World Trade Ltd. Method and apparatus for relaying communication between an access point and a station in a wireless network
US8750281B2 (en) * 2012-06-21 2014-06-10 Qualcomm Incorporated Variable-length training fields in coaxial communications
US9596648B2 (en) 2012-06-29 2017-03-14 Marvell World Trade Ltd. Unified beacon format
WO2014022693A1 (en) 2012-08-03 2014-02-06 Marvell World Trade Ltd. Multi-mode indication subfield in a signal field of a wireless local area network data unit
WO2014039616A1 (en) 2012-09-06 2014-03-13 Marvell World Trade Ltd. Efficient search of precoders in precoded mimo systems
JP6409247B2 (ja) 2013-01-31 2018-10-24 マーベル ワールド トレード リミテッド ＷｉＦｉレンジングのための周波数オフセット補償
US9414432B2 (en) 2013-04-03 2016-08-09 Marvell World Trade Ltd. Physical layer frame format for WLAN
US10320459B2 (en) 2013-04-10 2019-06-11 Marvell World Trade Ltd. Method and apparatus for mitigating interference in a wireless network through use of transmit beamforming
US9325540B2 (en) 2013-04-10 2016-04-26 Marvell World Trade Ltd. Method and apparatus for mitigating interference in a wireless network through use of transmit beamforming
US9083571B2 (en) * 2013-04-10 2015-07-14 Texas Instruments Incorporated Symbol-wise channel tracking for smart utility networks (SUN) orthogonal frequency division multiplexing (OFDM)
US9843097B1 (en) 2013-07-08 2017-12-12 Marvell International Ltd. MIMO implicit beamforming techniques
US9439161B2 (en) * 2013-07-17 2016-09-06 Qualcomm Incorporated Physical layer design for uplink (UL) multiuser multiple-input, multiple-output (MU-MIMO) in wireless local area network (WLAN) systems
US9071474B1 (en) 2013-07-25 2015-06-30 Marvell International Ltd. Systems and methods for suppressing interference in a wireless communication system
US9294323B2 (en) 2013-09-10 2016-03-22 Marvell World Trade Ltd. Extended guard interval for outdoor WLAN
WO2015039116A2 (en) 2013-09-16 2015-03-19 Marvell World Trade Ltd. Access point coordination for traffic control in wireless networks
CN105830410B (zh) 2013-10-25 2020-07-03 马维尔亚洲私人有限公司 一种用于生成用于经由通信信道传输的物理层数据单元的方法和装置
US10218822B2 (en) 2013-10-25 2019-02-26 Marvell World Trade Ltd. Physical layer frame format for WLAN
US10194006B2 (en) 2013-10-25 2019-01-29 Marvell World Trade Ltd. Physical layer frame format for WLAN
WO2015070230A1 (en) 2013-11-11 2015-05-14 Marvell World Trade Ltd. Medium access control for multi-channel ofdm in a wireless local area network
JP2016536911A (ja) * 2013-11-12 2016-11-24 ホアウェイ・テクノロジーズ・カンパニー・リミテッド 高効率ワイヤレスローカルエリアネットワーク通信用のシステムおよび方法
US9325463B2 (en) 2013-11-19 2016-04-26 Intel IP Corporation High-efficiency WLAN (HEW) master station and methods to increase information bits for HEW communication
US9271241B2 (en) 2013-11-19 2016-02-23 Intel IP Corporation Access point and methods for distinguishing HEW physical layer packets with backwards compatibility
CN105659681B (zh) 2013-11-19 2019-09-20 英特尔Ip公司 无线局域网中用于多用户调度的方法、装置和计算机可读介质
CN106464652B (zh) 2013-11-19 2019-12-13 英特尔Ip公司 用于针对hew ofdma mu-mimo宽带信道操作具有信号字段配置的hew通信的主站和方法
US9544914B2 (en) 2013-11-19 2017-01-10 Intel IP Corporation Master station and method for HEW communication using a transmission signaling structure for a HEW signal field
US9825678B2 (en) 2013-11-26 2017-11-21 Marvell World Trade Ltd. Uplink multi-user multiple input multiple output for wireless local area network
WO2015081269A1 (en) 2013-11-27 2015-06-04 Marvell Semiconductor, Inc. Sounding and tone block allocation for orthogonal frequency division multiple access (ofdma) in wireless local area networks
WO2015081288A1 (en) 2013-11-27 2015-06-04 Marvell Semiconductor, Inc. Medium access protection and bandwidth negotiation in a wireless local area network
WO2015081187A1 (en) 2013-11-27 2015-06-04 Marvell Semiconductor, Inc. Uplink multi-user multiple input multiple output beamforming
EP3075120B1 (en) 2013-11-27 2025-05-07 Marvell Asia Pte, Ltd. Orthogonal frequency division multiple access for wireless local area network
US10206122B2 (en) * 2014-02-25 2019-02-12 Mediatek Inc. Direction finding positioning in wireless local area networks
US9935794B1 (en) 2014-03-24 2018-04-03 Marvell International Ltd. Carrier frequency offset estimation
US9680603B2 (en) 2014-04-08 2017-06-13 Intel IP Corporation High-efficiency (HE) communication station and method for communicating longer duration OFDM symbols within 40 MHz and 80 MHz bandwidth
EP3132583B1 (en) 2014-04-16 2020-08-26 NXP USA, Inc. Signal field length indication in a high efficiency wireless local area network (wlan)
US11855818B1 (en) 2014-04-30 2023-12-26 Marvell Asia Pte Ltd Adaptive orthogonal frequency division multiplexing (OFDM) numerology in a wireless communication network
JP6430535B2 (ja) 2014-05-02 2018-11-28 マーベル ワールド トレード リミテッド 方法、機器、および第１通信デバイス
US9900199B2 (en) 2014-05-06 2018-02-20 Qualcomm Incorporated Systems and methods for improvements to training field design for increased symbol durations
US20150327121A1 (en) 2014-05-08 2015-11-12 Guoqing C. Li Method, apparatus, and computer readable media for acknowledgement in wireless networks
US9596060B1 (en) 2014-05-09 2017-03-14 Marvell International Ltd. Tone block allocation for orthogonal frequency division multiple access data unit
US10164695B2 (en) 2014-05-09 2018-12-25 Marvell World Trade Ltd. Tone block and spatial stream allocation
CN106664187A (zh) 2014-06-02 2017-05-10 马维尔国际贸易有限公司 高效正交频分复用（ofdm）物理层（phy）
EP3155778B1 (en) 2014-06-11 2019-02-20 Marvell World Trade Ltd. Compressed ofdm symbols in a wireless communication system
US9729214B2 (en) 2014-07-24 2017-08-08 Marvell World Trade Ltd. Group acknowledgement for multiple user communication in a wireless local area network
CN110875817A (zh) * 2014-08-28 2020-03-10 纽瑞科姆有限公司 帧传输方法及帧接收方法
US9553699B2 (en) * 2014-08-28 2017-01-24 Newracom, Inc. Frame transmitting method and frame receiving method
US9804918B1 (en) 2014-10-10 2017-10-31 Marvell International Ltd. Method and apparatus for generating a PHY data unit
CN107113132B (zh) 2014-10-31 2020-10-30 Lg电子株式会社 无线通信系统中的多用户收发方法及其装置
WO2016089998A1 (en) 2014-12-02 2016-06-09 Marvell Semiconductor, Inc. Signal fields in a high efficiency wireless local area network (hew) data unit
US10334571B2 (en) 2014-12-05 2019-06-25 Marvell World Trade Ltd. Trigger frame format for orthogonal frequency division multiple access (OFDMA) communication
US10390328B2 (en) 2014-12-05 2019-08-20 Marvell World Trade Ltd. Beamforming training in orthogonal frequency division multiple access (OFDMA) communication systems
US9326295B1 (en) * 2014-12-10 2016-04-26 Sony Corporation Method and apparatus for transmitting a-priori information in a communication system
JP6459015B2 (ja) 2015-01-08 2019-01-30 マーベル ワールド トレード リミテッド 方法および装置
US10306603B1 (en) 2015-02-09 2019-05-28 Marvell International Ltd. Resource request for uplink multi-user transmission
US9826532B1 (en) 2015-02-09 2017-11-21 Marvell International Ltd. Orthogonal frequency division multiple access resource request
US9674011B1 (en) 2015-02-10 2017-06-06 Marvel International Ltd. Auto-detection of repeated signals
US9509540B1 (en) * 2015-02-13 2016-11-29 Marvell International Ltd. Methods and apparatus for increasing the number of training and data tones in wireless communications systems
WO2016164912A1 (en) 2015-04-09 2016-10-13 Marvell World Trade Ltd. Contention-based orthogonal frequency division multiple access (ofdma) communication
US10153857B1 (en) 2015-04-10 2018-12-11 Marvell International Ltd. Orthogonal frequency division multiple access protection
US10382598B1 (en) 2015-05-01 2019-08-13 Marvell International Ltd. Physical layer frame format for WLAN
US10181966B1 (en) 2015-05-01 2019-01-15 Marvell International Ltd. WiFi classification by pilot sequences
CN107852218A (zh) 2015-06-08 2018-03-27 马维尔国际贸易有限公司 高效无线局域网中的显式波束赋形
US10285202B2 (en) 2015-06-09 2019-05-07 Marvell World Trade Ltd. Channel access for simultaneous uplink transmissions by multiple communication devices
US10038518B1 (en) 2015-06-11 2018-07-31 Marvell International Ltd. Signaling phy preamble formats
US10237839B2 (en) * 2015-06-15 2019-03-19 Qualcomm Incorporated Phase tracking in training fields
US10148412B1 (en) 2015-06-25 2018-12-04 Marvell International Ltd. Methods and apparatus for clock drift mitigation
US10492221B1 (en) 2015-06-25 2019-11-26 Marvell International Ltd. Methods and apparatus for protecting transmissions in a wireless communication network
US10201009B1 (en) 2015-08-13 2019-02-05 Marvell International Ltd. Methods and apparatus for protecting transmissions in a wireless communication network
US10136435B1 (en) 2015-08-13 2018-11-20 Marvell International Ltd. Orthogonal frequency division multiplex data unit decoding
WO2017031001A1 (en) * 2015-08-14 2017-02-23 Marvell World Trade Ltd. Physical layer data unit format for a wireless communication network
WO2017070393A1 (en) 2015-10-20 2017-04-27 Marvell World Trade Ltd. Acknowledgment data unit for multiple uplink data units
US11082888B2 (en) 2015-10-20 2021-08-03 Nxp Usa, Inc. Single acknowledgment policy for aggregate MPDU
US10742285B1 (en) 2015-11-13 2020-08-11 Marvell International Ltd. Explicit multiuser beamforming training in a wireless local area network
CN108370285B (zh) 2015-12-11 2020-12-11 马维尔国际有限公司 生成数据单元的物理层phy前导码字段的方法和装置
CN108604961B (zh) 2015-12-15 2020-12-22 马维尔国际有限公司 用于在无线通信网络中通信的方法和通信设备
US10873878B2 (en) 2016-02-19 2020-12-22 Nxp Usa, Inc. Acknowledgement of transmissions in a wireless local area network
US10313923B2 (en) 2016-02-19 2019-06-04 Marvell World Trade Ltd. Acknowledgement of transmissions in a wireless local area network
US10277376B2 (en) 2016-02-19 2019-04-30 Marvell World Trade Ltd. Acknowledgement of transmissions in a wireless local area network
WO2017151932A1 (en) 2016-03-02 2017-09-08 Marvell Semiconductor, Inc. Multiple traffic class data aggregation in a wireless local area network
US10403960B2 (en) * 2016-03-31 2019-09-03 Dell Products L.P. System and method for antenna optimization
EP3443793A2 (en) 2016-04-12 2019-02-20 Marvell World Trade Ltd. Uplink multi-user transmission
US10574418B2 (en) 2016-04-14 2020-02-25 Marvell World Trade Ltd. Determining channel availability for orthogonal frequency division multiple access operation
CN107682065B (zh) * 2016-08-02 2020-08-25 华为技术有限公司 一种传输数据的方法和装置
CN110710176B (zh) 2017-06-09 2022-12-02 马维尔亚洲私人有限公司 带有具有压缩ofdm符号的中间码的分组
US10715365B2 (en) 2017-09-22 2020-07-14 Nxp Usa, Inc. Determining number of midambles in a packet
US11095391B2 (en) 2018-12-19 2021-08-17 Nxp Usa, Inc. Secure WiFi communication
WO2020191411A1 (en) 2019-03-21 2020-09-24 Marvell Asia Pte, Ltd. Coordinated multi-user transmissions with multiple access points
CN119854862A (zh) * 2020-03-13 2025-04-18 交互数字专利控股公司 涉及无线局域网系统中的物理层信令的方法、架构、装置和系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030072452A1 (en) 2001-10-04 2003-04-17 Mody Apurva N. Preamble structures for single-input, single-output (SISO) and multi-input, multi-output (MIMO) communication systems

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7233625B2 (en) * 2000-09-01 2007-06-19 Nortel Networks Limited Preamble design for multiple input—multiple output (MIMO), orthogonal frequency division multiplexing (OFDM) system
US7310304B2 (en) * 2001-04-24 2007-12-18 Bae Systems Information And Electronic Systems Integration Inc. Estimating channel parameters in multi-input, multi-output (MIMO) systems
SG104340A1 (en) * 2002-07-03 2004-06-21 Oki Techno Ct Singapore Pte Receiver and method for wlan burst type signals
US7352688B1 (en) * 2002-12-31 2008-04-01 Cisco Technology, Inc. High data rate wireless bridging
US7916803B2 (en) * 2003-04-10 2011-03-29 Qualcomm Incorporated Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices
JP4391988B2 (ja) * 2003-05-16 2009-12-24 三菱電機株式会社 送信方法および送信機
KR101018485B1 (ko) 2003-06-30 2011-03-03 에이저 시스템즈 인크 데이터 전송 방법, 송신기, 데이터 수신 방법 및 수신기
EP1639776B1 (en) * 2003-06-30 2015-08-26 Agere Systems, Inc. Methods and apparatus for backwards compatible communication in a multiple antenna communication system using time orthogonal symbols
EP1642434B1 (en) * 2003-06-30 2017-08-02 Avago Technologies General IP (Singapore) Pte. Ltd. Methods and apparatuses for backwards compatible communication in a multiple input multiple output communication system with lower order receivers
EP1499081A3 (en) * 2003-07-18 2007-01-03 Broadcom Corporation Multicarrier signal structure
JP4323985B2 (ja) * 2003-08-07 2009-09-02 パナソニック株式会社 無線送信装置及び無線送信方法
JP4131691B2 (ja) * 2003-08-22 2008-08-13 日本電信電話株式会社 ディジタル受信回路
US7809020B2 (en) * 2003-10-31 2010-10-05 Cisco Technology, Inc. Start of packet detection for multiple receiver combining and multiple input multiple output radio receivers
US7616698B2 (en) * 2003-11-04 2009-11-10 Atheros Communications, Inc. Multiple-input multiple output system and method
US7269430B2 (en) * 2003-11-24 2007-09-11 Broadcom Corporation Frame format for high data throughput wireless local area network transmissions
JP4212548B2 (ja) * 2003-12-26 2009-01-21 株式会社東芝 無線送信装置、無線受信装置、無線送信方法及び無線受信方法
US7324605B2 (en) * 2004-01-12 2008-01-29 Intel Corporation High-throughput multicarrier communication systems and methods for exchanging channel state information
US7570619B2 (en) * 2004-02-13 2009-08-04 Broadcom Corporation Long training sequence method and device for wireless communications
US7408976B1 (en) * 2004-05-19 2008-08-05 Marvell International Ltd. MIMO-OFDM receiver processing with frequency and channel estimation
KR20070020033A (ko) * 2004-05-13 2007-02-16 코닌클리케 필립스 일렉트로닉스 엔.브이. Ｉｅｅｅ 802.11ｎ에 관한 상이한 데이터 속도를 구비한다중 수신기 집합(ｍｒａ)
HUE031812T2 (en) * 2004-05-27 2017-08-28 Qualcomm Inc Modified prefix structure for IEEE 802.11A extensions to enable coexistence and interoperability between 802.11A devices and higher data rate, MIMO or otherwise extended devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030072452A1 (en) 2001-10-04 2003-04-17 Mody Apurva N. Preamble structures for single-input, single-output (SISO) and multi-input, multi-output (MIMO) communication systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"A MIMO system with backward compatibility for OFDM based WLANs", SPAWC 2003. 4TH IEEE WORKSHOP ON ROME, ITALY (2003.06.18)

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