BRPI0715766A2 - mÉtodo de controle de transmissço mimo de enlace descendente e aparelho estaÇço base - Google Patents

mÉtodo de controle de transmissço mimo de enlace descendente e aparelho estaÇço base Download PDF

Info

Publication number
BRPI0715766A2
BRPI0715766A2 BRPI0715766-5A BRPI0715766A BRPI0715766A2 BR PI0715766 A2 BRPI0715766 A2 BR PI0715766A2 BR PI0715766 A BRPI0715766 A BR PI0715766A BR PI0715766 A2 BRPI0715766 A2 BR PI0715766A2
Authority
BR
Brazil
Prior art keywords
channel
coding
diversity
streams
mimo
Prior art date
Application number
BRPI0715766-5A
Other languages
English (en)
Portuguese (pt)
Inventor
Mamoru Sawahashi
Kenichi Higuchi
Yoshihisa Kishiyama
Original Assignee
Ntt Docomo Inc
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 Ntt Docomo Inc filed Critical Ntt Docomo Inc
Publication of BRPI0715766A2 publication Critical patent/BRPI0715766A2/pt

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
    • H04B7/0602—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 antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H04B7/061—Antenna selection according to transmission parameters using feedback from receiving side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—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
    • H04B7/0456—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
    • H04B7/06—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
    • H04B7/0669—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 using different channel coding between antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—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
    • H04B7/068—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 space frequency diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit 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
    • H04B7/06—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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0625—Transmitter arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0631—Receiver arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
BRPI0715766-5A 2006-08-22 2007-08-17 mÉtodo de controle de transmissço mimo de enlace descendente e aparelho estaÇço base BRPI0715766A2 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2006-225923 2006-08-22
JP2006225923 2006-08-22
JP2006-272344 2006-10-03
JP2006272344A JP5006001B2 (ja) 2006-08-22 2006-10-03 下りリンクｍｉｍｏ伝送制御方法および基地局装置
PCT/JP2007/066051 WO2008023646A1 (fr) 2006-08-22 2007-08-17 procédé de commande de transmission mimo de liaison descendante et dispositif de station de base

Publications (1)

Publication Number Publication Date
BRPI0715766A2 true BRPI0715766A2 (pt) 2013-07-16

Family

ID=39106731

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0715766-5A BRPI0715766A2 (pt) 2006-08-22 2007-08-17 mÉtodo de controle de transmissço mimo de enlace descendente e aparelho estaÇço base

Country Status (8)

Country Link
US (1) US8385246B2 (2)
EP (2) EP2056506A4 (2)
JP (1) JP5006001B2 (2)
KR (1) KR101471009B1 (2)
BR (1) BRPI0715766A2 (2)
RU (1) RU2447589C2 (2)
TW (2) TWI443993B (2)
WO (1) WO2008023646A1 (2)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5006001B2 (ja) 2006-08-22 2012-08-22 株式会社エヌ・ティ・ティ・ドコモ 下りリンクｍｉｍｏ伝送制御方法および基地局装置
CN101529738B (zh) * 2006-08-22 2013-01-16 株式会社Ntt都科摩 下行链路多输入多输出传输控制方法以及基站装置
KR100946893B1 (ko) * 2007-01-03 2010-03-09 삼성전자주식회사 이동 통신 시스템에서 순방향 패킷 스케줄링 방법 및 그장치
US8457064B2 (en) 2007-03-21 2013-06-04 Qualcomm Incorporated Methods and apparatus for RF handoff in a multi-frequency network
US8948757B2 (en) * 2007-03-21 2015-02-03 Qualcomm Incorporated Methods and apparatus for RF handoff in a multi-frequency network
US8737350B2 (en) * 2007-03-21 2014-05-27 Qualcomm Incorporated Methods and apparatus for RF handoff in a multi-frequency network
US8737353B2 (en) * 2007-03-21 2014-05-27 Qualcomm Incorporated Methods and apparatus for RF handoff in a multi-frequency network
US8750248B2 (en) * 2007-03-21 2014-06-10 Qualcomm Incorporated Methods and apparatus for RF handoff in a multi-frequency network
US8565799B2 (en) * 2007-04-04 2013-10-22 Qualcomm Incorporated Methods and apparatus for flow data acquisition in a multi-frequency network
PT2153565T (pt) * 2007-05-08 2019-10-10 Ericsson Telefon Ab L M Seleção de modo de transmissão
US9647347B2 (en) * 2007-05-21 2017-05-09 Spatial Digital Systems, Inc. Method and apparatus for channel bonding using multiple-beam antennas
JP4916389B2 (ja) * 2007-06-19 2012-04-11 株式会社エヌ・ティ・ティ・ドコモ 無線通信制御方法、基地局装置、およびユーザ装置
US8290088B2 (en) 2007-08-07 2012-10-16 Research In Motion Limited Detecting the number of transmit antennas in a base station
US8948093B2 (en) * 2007-10-02 2015-02-03 Apple Inc. Rank adaptation for an open loop multi-antenna mode of wireless communication
BR122017009611B1 (pt) * 2008-01-18 2018-08-07 Huawei Technologies Co., Ltd. Sistema de comunicação, dispositivo de estação base, dispositivo de estação móvel e métodos de processamento de comunicação dos mesmos
US8570939B2 (en) * 2008-03-07 2013-10-29 Qualcomm Incorporated Methods and systems for choosing cyclic delays in multiple antenna OFDM systems
JP5233331B2 (ja) * 2008-03-12 2013-07-10 富士通株式会社 無線基地局、無線端末及び無線通信方法
US8374109B2 (en) * 2008-03-27 2013-02-12 Qualcomm Incorporated Methods of sending control information for users sharing the same resource
KR101537591B1 (ko) * 2008-04-07 2015-07-20 엘지전자 주식회사 Ｍｉｍｏ 시스템에서 모드 적응 방법
KR20090110497A (ko) * 2008-04-18 2009-10-22 삼성전자주식회사 무선통신시스템에서 파일럿 전송 장치 및 방법
US8155063B2 (en) 2008-04-28 2012-04-10 Apple Inc. Apparatus and methods for transmission and reception of data in multi-antenna systems
JP5154295B2 (ja) 2008-05-02 2013-02-27 株式会社エヌ・ティ・ティ・ドコモ 基地局装置及びユーザ装置並びに通信制御方法
WO2009136446A1 (ja) * 2008-05-09 2009-11-12 富士通株式会社 移動体通信システム、移動体通信方法、移動体通信基地局装置および移動体通信端末装置
JP4684371B2 (ja) * 2008-08-05 2011-05-18 シャープ株式会社 無線通信システム、基地局装置、移動局装置、通信方法
CN102160313B (zh) * 2008-09-22 2014-03-12 株式会社Ntt都科摩 基站装置、用户装置和预编码方法
KR101001015B1 (ko) * 2008-09-25 2010-12-14 한국전자통신연구원 다운링크 송신 모드를 적응적으로 결정하는 다중 안테나 무선 통신 시스템
JP5221285B2 (ja) * 2008-11-05 2013-06-26 株式会社東芝 無線通信装置及び方法
US8767843B2 (en) * 2008-11-10 2014-07-01 Motorola Mobility Llc Employing cell-specific and user entity-specific reference symbols in an orthogonal frequency-division multiple access
KR101498297B1 (ko) * 2008-11-23 2015-03-05 엘지전자 주식회사 무선 통신 시스템에서 데이터 전송 방법
SG171912A1 (en) 2008-12-02 2011-07-28 Panasonic Corp Encoding ratio setting method and radio communication device
EP3570615B1 (en) 2008-12-08 2021-03-17 Wireless Future Technologies Inc. Uplink control signaling in cellular telecommunication system
WO2010076854A1 (ja) * 2009-01-05 2010-07-08 富士通株式会社 通信装置、移動局および通信制御方法
JP5150530B2 (ja) * 2009-03-03 2013-02-20 株式会社エヌ・ティ・ティ・ドコモ 無線基地局装置及び無線通信方法
KR101530201B1 (ko) 2009-03-03 2015-06-19 삼성전자주식회사 간섭 제어 방법 또는/및 전송 전력 제어 방법을 적용하여 신호를 전송하는 신호 전송 시스템 및 그 방법
JP5478094B2 (ja) * 2009-03-09 2014-04-23 株式会社Ｎｔｔドコモ 無線基地局
KR101587005B1 (ko) * 2009-03-11 2016-02-02 삼성전자주식회사 다중안테나시스템에서 간섭완화를 위한 제어정보를 전송하기 위한 방법 및 장치
US20100234071A1 (en) * 2009-03-12 2010-09-16 Comsys Communication & Signal Processing Ltd. Vehicle integrated communications system
EP2413528A4 (en) * 2009-03-24 2015-09-16 Fujitsu Ltd WIRELESS COMMUNICATION SYSTEM, TERMINAL DEVICE, BASIC STATION EQUIPMENT, METHOD OF WIRELESS COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM
WO2010118557A1 (zh) * 2009-04-16 2010-10-21 上海贝尔股份有限公司 多基站mimo系统中选择对象终端的方法和装置
KR101591403B1 (ko) * 2009-04-30 2016-02-03 인텔렉추얼디스커버리 주식회사 프리코딩 행렬 결정 방법 및 장치
CN101944978B (zh) 2009-07-03 2013-01-16 中兴通讯股份有限公司 基于lte系统下行发射分集模式的数据解调方法和解调装置
CN102474382B (zh) * 2009-07-03 2015-02-25 松下电器（美国）知识产权公司 无线通信装置及无线通信方法
US8233517B2 (en) * 2009-07-28 2012-07-31 Telefonaktiebolaget L M Ericsson (Publ) Pilot-based SINR estimation for MIMO systems
CN101998498B (zh) * 2009-08-19 2013-11-06 中兴通讯股份有限公司 一种秩自适应方法及装置
JP5430306B2 (ja) 2009-09-10 2014-02-26 京セラ株式会社 基地局装置及び基地局装置の通信制御方法
CN102075303B (zh) * 2009-11-25 2014-06-04 华为技术有限公司 导频发送方法和装置
KR101559295B1 (ko) 2009-12-04 2015-10-12 삼성전자주식회사 공간 분할 다중 사용자 다중 입력 다중 출력 방식을 이용하는 통신 시스템
US8824384B2 (en) * 2009-12-14 2014-09-02 Samsung Electronics Co., Ltd. Systems and methods for transmitting channel quality information in wireless communication systems
CN105530035A (zh) 2010-01-08 2016-04-27 上海贝尔股份有限公司 一种基站选择天线的方法和装置
JP5548815B2 (ja) * 2010-03-16 2014-07-16 テレフオンアクチーボラゲット エル エム エリクソン（パブル） オープンループマルチストリーム送信とクローズドループマルチストリーム送信との切換え
JP5630898B2 (ja) 2010-04-15 2014-11-26 シャープ株式会社 基地局装置、端末装置、および無線通信システム
WO2011131210A1 (en) * 2010-04-20 2011-10-27 Telecom Italia S.P.A. Method and system for wireless communications, corresponding network and computer
GB2480882B (en) 2010-06-04 2016-08-31 Samsung Electronics Co Ltd Method and apparatus for multiplexing different efficiency modes in digital radio systems
US8483735B2 (en) * 2010-08-26 2013-07-09 Telefonaktiebolaget L M Ericsson (Publ) Methods and apparatus for parallel scheduling of frequency resources for communication nodes
JP5860941B2 (ja) * 2010-09-10 2016-02-16 パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 送信方法、送信装置、受信方法および受信装置
WO2012060237A1 (ja) * 2010-11-01 2012-05-10 シャープ株式会社 無線送信装置、無線受信装置、無線通信システム、制御プログラムおよび集積回路
US20120113898A1 (en) * 2010-11-09 2012-05-10 Qualcomm Incorporated Using precoding vector switching in uplink control channel
KR101874394B1 (ko) * 2010-12-10 2018-07-05 선 페이턴트 트러스트 프리코딩방법, 송신장치
JP5602652B2 (ja) 2011-01-27 2014-10-08 京セラ株式会社 通信装置および通信方法
US9294165B2 (en) 2011-04-19 2016-03-22 Panasonic Intellectual Property Corporation Of America Signal generating method and signal generating device
US9455809B2 (en) 2011-05-25 2016-09-27 Lg Electronics Inc. Method for transceiving downlink control information in a wireless access system and apparatus therefor
CN103959839A (zh) * 2011-08-12 2014-07-30 黑莓有限公司 在协调多点无线通信系统中的信道状态信息反馈和发送的方法
JP5784740B2 (ja) 2011-09-08 2015-09-24 パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 信号生成方法及び信号生成装置
JP5744238B2 (ja) 2012-01-18 2015-07-08 京セラ株式会社 無線通信装置および無線通信方法
CN103378893A (zh) * 2012-04-28 2013-10-30 中兴通讯股份有限公司 开环数据发送的方法及装置
JP2014027608A (ja) * 2012-07-30 2014-02-06 Ntt Docomo Inc 基地局装置、ユーザ端末、通信システム及び通信制御方法
US9166764B2 (en) * 2012-10-16 2015-10-20 Qualcomm Incorporated Methods and apparatus for feedback computation and decoding with synchronously coded subcarriers in OFDMA systems
WO2014109774A1 (en) * 2013-01-14 2014-07-17 Hewlett-Packard Development Company, L.P. Wirelessly transmitting multi-cast signal using rateless codes
JP5870051B2 (ja) * 2013-02-13 2016-02-24 日本電信電話株式会社 無線送信装置、無線通信システム及び無線通信方法
US10432270B2 (en) 2013-11-11 2019-10-01 Microsoft Technology Licensing, Llc Spatial scalable video multicast for heterogeneous MIMO systems
US10312950B2 (en) 2014-10-03 2019-06-04 Interdigital Patent Holdings, Inc. Systems and methods for multiuser interleaving and modulation
JP7190247B2 (ja) * 2015-06-23 2022-12-15 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 送信方法、送信装置及び通信システム
EP3410762B1 (en) * 2016-01-27 2024-02-21 NTT DoCoMo, Inc. User terminal, wireless base station, and wireless communication method
CN108702230B (zh) * 2016-02-26 2020-01-10 三菱电机株式会社 无线通信装置和发送流数决定方法
JP2018078593A (ja) * 2017-12-11 2018-05-17 株式会社Ｎｔｔドコモ 基地局装置、ユーザ端末及び無線通信方法
WO2021025949A1 (en) 2019-08-05 2021-02-11 Shure Acquisition Holdings, Inc. Transmit antenna diversity wireless audio system
CN116567714A (zh) * 2020-02-17 2023-08-08 华为技术有限公司 一种业务传输方法及装置
US11277735B1 (en) 2020-09-08 2022-03-15 T-Mobile Innovations Llc Multiple input multiple output (MIMO) layer control for wireless user equipment
US11863314B1 (en) * 2022-01-27 2024-01-02 Tarana Wireless, Inc. Systems and methods for per-sub-band, per-stream, and per-user selection of modulation and coding schemes including scheduling using channel condition metrics indicative of channel interference
US12562788B2 (en) 2024-06-28 2026-02-24 Tarana Wireless, Inc. Systems and methods for spatial compatibility determination and weight generation using beamformed sounding signals

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6493331B1 (en) * 2000-03-30 2002-12-10 Qualcomm Incorporated Method and apparatus for controlling transmissions of a communications systems
US7248841B2 (en) * 2000-06-13 2007-07-24 Agee Brian G Method and apparatus for optimization of wireless multipoint electromagnetic communication networks
US7929631B2 (en) * 2001-04-23 2011-04-19 Texas Instruments Incorporated Multiple space time transmit diversity communication system with selected complex conjugate inputs
EP1255369A1 (en) * 2001-05-04 2002-11-06 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Link adaptation for wireless MIMO transmission schemes
US7020110B2 (en) * 2002-01-08 2006-03-28 Qualcomm Incorporated Resource allocation for MIMO-OFDM communication systems
US8320301B2 (en) * 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
KR100713403B1 (ko) 2003-09-30 2007-05-04 삼성전자주식회사 통신 시스템에서 채널 상태에 따른 송신 방식 제어 장치및 방법
US8285226B2 (en) 2004-05-07 2012-10-09 Qualcomm Incorporated Steering diversity for an OFDM-based multi-antenna communication system
JP4604545B2 (ja) * 2004-05-10 2011-01-05 ソニー株式会社 無線通信システム、無線通信装置及び無線通信方法ム
JP2006081131A (ja) 2004-09-06 2006-03-23 Tokyo Institute Of Technology 位相ホッピング送信ダイバーシチを用いたｍｉｍｏ−ｏｆｄｍ送受信機
JP4227594B2 (ja) 2005-02-16 2009-02-18 川重岐阜エンジニアリング株式会社 騒音吸収パネル
JP2006272344A (ja) 2005-03-28 2006-10-12 Asahi Tec Corp 鋳造用金型
CN101529738B (zh) * 2006-08-22 2013-01-16 株式会社Ntt都科摩 下行链路多输入多输出传输控制方法以及基站装置
JP5006001B2 (ja) 2006-08-22 2012-08-22 株式会社エヌ・ティ・ティ・ドコモ 下りリンクｍｉｍｏ伝送制御方法および基地局装置

Also Published As

Publication number Publication date
TWI443993B (zh) 2014-07-01
EP2056506A1 (en) 2009-05-06
EP3046280A1 (en) 2016-07-20
EP2056506A4 (en) 2013-06-19
EP3046280B1 (en) 2018-02-28
TW200822601A (en) 2008-05-16
WO2008023646A1 (fr) 2008-02-28
JP5006001B2 (ja) 2012-08-22
KR20090042949A (ko) 2009-05-04
TWI376898B (2) 2012-11-11
TW201208284A (en) 2012-02-16
JP2008079262A (ja) 2008-04-03
US20100046445A1 (en) 2010-02-25
RU2447589C2 (ru) 2012-04-10
US8385246B2 (en) 2013-02-26
RU2009108799A (ru) 2010-09-27
KR101471009B1 (ko) 2014-12-10

Similar Documents

Publication Publication Date Title
BRPI0715766A2 (pt) mÉtodo de controle de transmissço mimo de enlace descendente e aparelho estaÇço base
JP5180299B2 (ja) 遅延ダイバーシティと空間−周波数ダイバーシティによる送信方法
CN101529738B (zh) 下行链路多输入多输出传输控制方法以及基站装置
JP4972687B2 (ja) 位相遷移基盤プリコーディング方法及びこれを支援する送受信機
US10027391B2 (en) Transmit diversity on a control channel without additional reference signals
KR101328961B1 (ko) 개루프 공간 다중화 모드에서 신호 송수신 방법
US8520598B2 (en) Data transmission apparatus using multiple antennas and method thereof
US8594235B2 (en) Apparatus and method for transmitting data using transmission diversity in wireless communication system
CN108400848B (zh) 一种指示方法及装置
US20100009718A1 (en) Base station apparatus
WO2011083796A1 (ja) 基地局装置、移動局装置及び制御情報送信方法
WO2013024852A1 (ja) 無線基地局、ユーザ端末、無線通信システム及び無線通信方法
KR20100002064A (ko) Ｓｃ-ｆｄｍａ 시스템에서 전송 다이버시티를 이용한 데이터 전송장치 및 방법
Sawahashi et al. Broadband radio access: LTE and LTE-advanced
Lambotharan et al. Closed-loop space time block coding techniques for OFDM broadband wireless access systems
Kapinas et al. A universal MIMO approach for 3GPP wireless standards
KR20090076322A (ko) 다중 입출력 시스템에서, 신호를 송수신하는 방법
Prabakaran et al. Performance analysis of uplink MIMO in 2× 2 mobile WiMAX system
Taoka et al. Comparisons between Common and Dedicated Reference Signals for MIMO Multiplexing Using Precoding in Evolved UTRA Downlink
Jiang et al. Double single-carrier space frequency block coding for SC-FDMA MU-MIMO: Performance evaluation
Prasad et al. Multiple Antenna Technology

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]