PL2615785T3 - Sposób i układ do adaptacji transmisji wieloantenowej - Google Patents

Sposób i układ do adaptacji transmisji wieloantenowej

Info

Publication number
PL2615785T3
PL2615785T3 PL13153994T PL13153994T PL2615785T3 PL 2615785 T3 PL2615785 T3 PL 2615785T3 PL 13153994 T PL13153994 T PL 13153994T PL 13153994 T PL13153994 T PL 13153994T PL 2615785 T3 PL2615785 T3 PL 2615785T3
Authority
PL
Poland
Prior art keywords
adapting
arrangement
antenna transmission
antenna
transmission
Prior art date
Application number
PL13153994T
Other languages
English (en)
Inventor
George Jöngren
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of PL2615785T3 publication Critical patent/PL2615785T3/pl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • 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
    • 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
    • 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
    • H04B7/0417—Feedback systems
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • H04B7/0465—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking power constraints at power amplifier or emission constraints, e.g. constant modulus, into account
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • H04B7/0469—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas into account
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • H—ELECTRICITY
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04B7/10—Polarisation diversity; Directional diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
PL13153994T 2007-04-30 2008-03-31 Sposób i układ do adaptacji transmisji wieloantenowej PL2615785T3 (pl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0701054 2007-04-30
EP08724320A EP2145400B1 (en) 2007-04-30 2008-03-31 Method and arrangement for adapting a multi-antenna transmission
EP13153994.2A EP2615785B1 (en) 2007-04-30 2008-03-31 Method and arrangement for adapting a multi-antenna transmission

Publications (1)

Publication Number Publication Date
PL2615785T3 true PL2615785T3 (pl) 2018-01-31

Family

ID=39926218

Family Applications (2)

Application Number Title Priority Date Filing Date
PL13153994T PL2615785T3 (pl) 2007-04-30 2008-03-31 Sposób i układ do adaptacji transmisji wieloantenowej
PL08724320T PL2145400T3 (pl) 2007-04-30 2008-03-31 Sposób i układ do adaptacji transmisji wieloantenowej

Family Applications After (1)

Application Number Title Priority Date Filing Date
PL08724320T PL2145400T3 (pl) 2007-04-30 2008-03-31 Sposób i układ do adaptacji transmisji wieloantenowej

Country Status (11)

Country Link
US (6) US8306140B2 (pl)
EP (3) EP2145400B1 (pl)
JP (2) JP5039831B2 (pl)
KR (1) KR101478379B1 (pl)
CN (1) CN101675602B (pl)
DK (2) DK2145400T3 (pl)
ES (2) ES2407118T3 (pl)
PL (2) PL2615785T3 (pl)
PT (1) PT2145400E (pl)
TW (1) TWI445363B (pl)
WO (1) WO2008133582A2 (pl)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2407118T3 (es) * 2007-04-30 2013-06-11 Telefonaktiebolaget L M Ericsson (Publ) Método y disposición para adaptar una transmisión multi-antena
KR101056614B1 (ko) * 2008-07-30 2011-08-11 엘지전자 주식회사 다중안테나 시스템에서 데이터 전송방법
CN102217206B (zh) * 2009-01-05 2014-10-08 马维尔国际贸易有限公司 用于mimo通信系统的预编码码本
US8385441B2 (en) 2009-01-06 2013-02-26 Marvell World Trade Ltd. Efficient MIMO transmission schemes
PL2375604T3 (pl) 2009-01-07 2019-01-31 Sun Patent Trust Urządzenie do komunikacji bezprzewodowej, system komunikacji bezprzewodowej i sposób prowadzenia komunikacji bezprzewodowej
US8503572B2 (en) * 2009-02-02 2013-08-06 Qualcomm Incorporated Antenna virtualization in a wireless communication environment
US8238483B2 (en) 2009-02-27 2012-08-07 Marvell World Trade Ltd. Signaling of dedicated reference signal (DRS) precoding granularity
CA2755432C (en) * 2009-03-17 2018-10-16 Nokia Siemens Networks Oy Method and apparatus for codebook-based precoding in mimo systems
CN104539332B (zh) * 2009-03-17 2018-08-17 诺基亚通信公司 用于mimo系统中基于码本的预编码的方法和设备
WO2010122432A1 (en) 2009-04-21 2010-10-28 Marvell World Trade Ltd Multi-point opportunistic beamforming with selective beam attenuation
JP5472884B2 (ja) * 2009-04-27 2014-04-16 ▲ホア▼▲ウェイ▼技術有限公司 コードブック、コードブック生成方法、アップリンク送信方法、およびコードブックに基づく機器
CN101877609B (zh) * 2009-04-30 2013-06-12 富士通株式会社 通信装置、基站和多点合作通信方法
GB0909466D0 (en) * 2009-06-02 2009-07-15 Nokia Siemens Networks Oy Method and apparatus for antenna virtualization for multimode diversity transmission
WO2010142323A1 (en) * 2009-06-08 2010-12-16 Telefonaktiebolaget L M Ericsson (Publ) Wireless communication node connections
TWI415329B (zh) * 2009-06-15 2013-11-11 Senao Networks Inc Multi-incoming and outgoing RF transmitter and receiver
JP5122529B2 (ja) * 2009-06-23 2013-01-16 株式会社エヌ・ティ・ティ・ドコモ 移動端末装置、無線基地局装置、無線通信方法及び無線通信システム
WO2011002355A1 (en) * 2009-06-29 2011-01-06 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement for adapting a signal in a wireless communications network
US9628250B2 (en) * 2009-08-05 2017-04-18 Spatial Digital Systems, Inc. Advanced beam-forming technology with cross-polarization cancellation schemes
JP5595501B2 (ja) * 2009-08-18 2014-09-24 アルカテル−ルーセント コードブックを構成するための方法および装置、ならびにプリコーディングのための方法、装置およびシステム
JP5149257B2 (ja) * 2009-10-02 2013-02-20 シャープ株式会社 無線通信システム、通信装置および無線通信方法
US8675794B1 (en) 2009-10-13 2014-03-18 Marvell International Ltd. Efficient estimation of feedback for modulation and coding scheme (MCS) selection
US8917796B1 (en) 2009-10-19 2014-12-23 Marvell International Ltd. Transmission-mode-aware rate matching in MIMO signal generation
EP2499862B1 (en) 2009-11-09 2018-09-05 Marvell World Trade Ltd. Asymmetrical feedback for coordinated transmission systems
WO2011059248A2 (ko) * 2009-11-12 2011-05-19 엘지전자 주식회사 무선랜 시스템에서의 mu-mimo 전송방법
WO2011073876A2 (en) 2009-12-17 2011-06-23 Marvell World Trade Ltd Mimo feedback schemes for cross-polarized antennas
CN102687456B (zh) 2010-01-07 2015-04-15 马维尔国际贸易有限公司 专用参考信号(drs)预编码粒度信令的方法和装置
CN102130751B (zh) * 2010-01-20 2013-06-12 电信科学技术研究院 一种多天线系统发送/接收信息的方法、系统及装置
JP5258002B2 (ja) 2010-02-10 2013-08-07 マーベル ワールド トレード リミテッド Ｍｉｍｏ通信システムにおける装置、移動通信端末、チップセット、およびその方法
US8687741B1 (en) 2010-03-29 2014-04-01 Marvell International Ltd. Scoring hypotheses in LTE cell search
CN101834698B (zh) * 2010-04-05 2016-01-13 中兴通讯股份有限公司 信道信息的发送方法和装置
CN101826945B (zh) * 2010-04-05 2015-08-12 中兴通讯股份有限公司 信道信息的发送方法和装置
CN101834629B (zh) * 2010-04-06 2014-10-22 中兴通讯股份有限公司 一种指示传输参数的方法及系统
PT3300263T (pt) 2010-04-07 2019-08-21 Ericsson Telefon Ab L M Estrutura de pré-codificador para pré-codificação mimo
WO2011162422A1 (en) * 2010-06-21 2011-12-29 Pantech Co., Ltd. Transmitter and receiver, method thereof in wireless communication system
WO2012015252A2 (ko) * 2010-07-29 2012-02-02 엘지전자 주식회사 무선 통신 시스템에서 프리코딩된 신호 송수신 방법 및 장치
JP5643569B2 (ja) * 2010-08-04 2014-12-17 シャープ株式会社 制御局装置
CN102377467B (zh) * 2010-08-23 2015-02-04 中国移动通信集团公司 八天线下行控制信道发送方法及装置
US8615052B2 (en) 2010-10-06 2013-12-24 Marvell World Trade Ltd. Enhanced channel feedback for multi-user MIMO
JP2012100254A (ja) 2010-10-06 2012-05-24 Marvell World Trade Ltd Ｐｕｃｃｈフィードバックのためのコードブックサブサンプリング
US9048970B1 (en) 2011-01-14 2015-06-02 Marvell International Ltd. Feedback for cooperative multipoint transmission systems
US8861391B1 (en) 2011-03-02 2014-10-14 Marvell International Ltd. Channel feedback for TDM scheduling in heterogeneous networks having multiple cell classes
WO2012131612A1 (en) 2011-03-31 2012-10-04 Marvell World Trade Ltd. Channel feedback for cooperative multipoint transmission
US20120328031A1 (en) * 2011-06-24 2012-12-27 Nokia Siemens Networks Oy Codebooks for Mobile Communications
CN102868479B (zh) * 2011-07-07 2015-06-03 华为技术有限公司 多天线传输方法、装置及系统
US8976713B2 (en) * 2011-08-02 2015-03-10 Electronics And Telecommunications Research Institute Method and apparatus for performing transmission and reception simultaneously in same frequency band
EP2769516B1 (en) * 2011-10-18 2016-09-21 Telefonaktiebolaget LM Ericsson (publ) Methods and devices for determining a transmission rank
WO2013068916A1 (en) 2011-11-07 2013-05-16 Marvell World Trade Ltd. Codebook sub-sampling for frequency-selective precoding feedback
US9020058B2 (en) 2011-11-07 2015-04-28 Marvell World Trade Ltd. Precoding feedback for cross-polarized antennas based on signal-component magnitude difference
WO2013068974A1 (en) 2011-11-10 2013-05-16 Marvell World Trade Ltd. Differential cqi encoding for cooperative multipoint feedback
US9220087B1 (en) 2011-12-08 2015-12-22 Marvell International Ltd. Dynamic point selection with combined PUCCH/PUSCH feedback
US8902842B1 (en) 2012-01-11 2014-12-02 Marvell International Ltd Control signaling and resource mapping for coordinated transmission
CN103297102B (zh) * 2012-03-02 2017-11-21 北京新岸线移动多媒体技术有限公司 波束赋形的预编码矩阵提供和获得方法、装置及系统
WO2013129985A1 (en) * 2012-03-02 2013-09-06 Telefonaktiebolaget L M Ericsson (Publ) Radio base station and method therein for transforming a data transmission signal
KR20150009980A (ko) 2012-04-27 2015-01-27 마벨 월드 트레이드 리미티드 기지국들과 모바일 통신 단말기들 사이의 CoMP 통신
EP2860897B1 (en) * 2012-07-02 2017-11-01 Huawei Technologies Co., Ltd. Method for determining precoding matrix indicator, user equipment and base station
CN103580785A (zh) * 2012-07-27 2014-02-12 华为技术有限公司 下行mimo模式下的上行控制信息反馈方法和用户设备
US9100052B2 (en) * 2013-02-01 2015-08-04 Samsung Electronics Co., Ltd. QC-LDPC convolutional codes enabling low power trellis-based decoders
CN105103463B (zh) * 2013-04-10 2018-08-17 Lg电子株式会社 用于无线通信系统中的多层三维波束成形的层对齐方法和设备
EP3306827B1 (en) 2013-04-15 2019-09-11 Huawei Technologies Co., Ltd. Method for reporting channel state information, user equipment, and base station
CN106411378B (zh) * 2013-09-02 2019-11-29 华为技术有限公司 通信设备、基带单元和通信方法
JP2017505075A (ja) * 2014-01-31 2017-02-09 クインテル テクノロジー リミテッド ビーム幅制御を伴うアンテナシステム
KR101904411B1 (ko) 2014-05-15 2018-10-05 후아웨이 테크놀러지 컴퍼니 리미티드 채널 정보를 측정하고 피드백하는 방법 및 장치
US9722841B1 (en) * 2014-07-16 2017-08-01 University Of South Florida Channel-based coding for wireless communications
ES2898201T3 (es) * 2014-09-25 2022-03-04 Ericsson Telefon Ab L M Nodo de red, equipo de usuario y métodos en los mismos para permitir al UE determinar un libro de códigos de precodificador
US10164694B2 (en) * 2016-01-29 2018-12-25 Telefonaktiebolaget Lm Ericsson (Publ) Beamforming using an antenna array
US11201647B2 (en) * 2016-08-11 2021-12-14 Motorola Mobility Llc Method and apparatus for equal energy codebooks for coupled antennas with transmission lines
US11075740B2 (en) 2018-05-07 2021-07-27 ENK Wireless, Inc. Systems/methods of communications using a plurality of cooperative devices
US10804998B2 (en) * 2018-05-07 2020-10-13 ENK Wireless, Inc. Systems/methods of providing increased wireless capacity, vehicular safety, electrical power wirelessly, and device control responsive to geographic position
US10681716B2 (en) 2018-05-07 2020-06-09 ENK Wireless, Inc. Systems/methods of providing increased wireless capacity, vehicular safety, electrical power wirelessly, and device control responsive to geographic position
US11100796B2 (en) 2018-05-07 2021-08-24 ENK Wireless, Inc. Systems/methods of improving vehicular safety
KR102586755B1 (ko) * 2018-06-11 2023-10-10 삼성전자 주식회사 비직교 다중 접속 시스템에서 코드북 결정 방법 및 이를 위한 장치
US10965352B1 (en) * 2019-09-24 2021-03-30 Rampart Communications, Inc. Communication system and methods using very large multiple-in multiple-out (MIMO) antenna systems with extremely large class of fast unitary transformations

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3939165B2 (ja) * 2002-02-20 2007-07-04 三洋電機株式会社 無線装置、無線通信システム、空間パス制御方法および空間パス制御プログラム
US6940917B2 (en) * 2002-08-27 2005-09-06 Qualcomm, Incorporated Beam-steering and beam-forming for wideband MIMO/MISO systems
US7151809B2 (en) * 2002-10-25 2006-12-19 Qualcomm, Incorporated Channel estimation and spatial processing for TDD MIMO systems
US8208364B2 (en) * 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
FR2848747A1 (fr) * 2002-12-16 2004-06-18 France Telecom Procede et dispositif multi-antenne de transmission de signaux
FR2853480B1 (fr) * 2003-04-01 2005-06-17 Procede et dispositif d'identification autodidacte d'un melange sous-determine de sources au quatrieme ordre
KR100575993B1 (ko) * 2003-08-07 2006-05-02 삼성전자주식회사 다중 송수신 안테나를 사용하는 이동통신 시스템에서 다중사용자를 위한 스케쥴링 방법 및 장치
US20050286663A1 (en) * 2004-06-23 2005-12-29 Intel Corporation Compact feedback for closed loop MIMO systems
GB2415863A (en) * 2004-07-01 2006-01-04 British Sky Broadcasting Ltd Wireless network system and devices with redundancy between orthogonally polarised beams
KR20060038812A (ko) * 2004-11-01 2006-05-04 엘지전자 주식회사 다중입출력 시스템의 선행 코딩 행렬 정보 전송 방법 및이를 이용한 신호 전송 방법
CN101142780A (zh) * 2004-11-05 2008-03-12 佛罗里达大学研究基金会股份有限公司 用于mimo通信的均匀信道分解
US7974359B2 (en) * 2004-12-22 2011-07-05 Qualcomm Incorporated Methods and apparatus for mitigating multi-antenna correlation effect in communication systems
US7933353B2 (en) * 2005-09-30 2011-04-26 Intel Corporation Communication system and technique using QR decomposition with a triangular systolic array
US20070099578A1 (en) * 2005-10-28 2007-05-03 Kathryn Adeney Pre-coded diversity forward channel transmission system for wireless communications systems supporting multiple MIMO transmission modes
US7917176B2 (en) * 2006-02-14 2011-03-29 Nec Laboratories America, Inc. Structured codebook and successive beamforming for multiple-antenna systems
KR100918747B1 (ko) * 2006-02-07 2009-09-24 삼성전자주식회사 직교 주파수 분할 다중 접속 방식을 사용하는 이동 통신시스템에서 상향링크 신호 송신 장치 및 방법
WO2008021396A2 (en) * 2006-08-17 2008-02-21 Interdigital Technology Corporation Method and apparatus for providing efficient precoding feedback in a mimo wireless communication system
KR20080022033A (ko) * 2006-09-05 2008-03-10 엘지전자 주식회사 프리코딩 정보 피드백 방법 및 프리코딩 방법
KR20080026010A (ko) * 2006-09-19 2008-03-24 엘지전자 주식회사 위상천이 기반의 프리코딩을 이용한 데이터 전송 방법 및이를 구현하는 송수신 장치
KR20080073624A (ko) * 2007-02-06 2008-08-11 삼성전자주식회사 다중 편파 다중 입출력 시스템을 위한 코드북 생성 방법 및그 장치
US7995671B2 (en) * 2007-02-09 2011-08-09 Qualcomm Incorporated Multiple-input multiple-output (MIMO) transmission with rank-dependent precoding
US8090049B2 (en) * 2007-02-12 2012-01-03 Broadcom Corporation Method and system for an alternating delta quantizer for limited feedback MIMO pre-coders
KR20080076683A (ko) * 2007-02-14 2008-08-20 엘지전자 주식회사 위상천이 기반의 프리코딩 방법 및 이를 지원하는 송수신기
ES2407118T3 (es) * 2007-04-30 2013-06-11 Telefonaktiebolaget L M Ericsson (Publ) Método y disposición para adaptar una transmisión multi-antena
KR20090025129A (ko) * 2007-09-05 2009-03-10 엘지전자 주식회사 다중 안테나 통신 시스템에서 다중 부호어를 송수신하는방법
CN101459495B (zh) * 2007-12-14 2011-06-01 华为技术有限公司 多用户多入多出通信系统、以及发射信号的方法和装置
US7773030B2 (en) * 2008-07-31 2010-08-10 Samsung Electronics Co., Ltd. Method and system for antenna training and communication protocol for multi-beamforming communication

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US9077401B2 (en) 2015-07-07
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DK2615785T3 (en) 2017-10-02
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US20130028343A1 (en) 2013-01-31
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