WO2009057559A1 - ユーザ装置、基地局装置及びｍｉｍｏ伝送制御方法 - Google Patents

ユーザ装置、基地局装置及びｍｉｍｏ伝送制御方法 Download PDF

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Publication number
WO2009057559A1
WO2009057559A1 PCT/JP2008/069469 JP2008069469W WO2009057559A1 WO 2009057559 A1 WO2009057559 A1 WO 2009057559A1 JP 2008069469 W JP2008069469 W JP 2008069469W WO 2009057559 A1 WO2009057559 A1 WO 2009057559A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
station device
user device
mimo transmission
control method
Prior art date
Application number
PCT/JP2008/069469
Other languages
English (en)
French (fr)
Inventor
Hidekazu Taoka
Nobuhiko Miki
Kenichi Higuchi
Mamoru Sawahashi
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 WO2009057559A1 publication Critical patent/WO2009057559A1/ja

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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
    • H04B7/0413—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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

　プリコーディングを用いたＭＩＭＯ伝送システムでランクアダプテーションを行う基地局装置と通信するユーザ装置は、前記基地局装置から通知されたランクで、プリコーディングマトリクスインジケータ（ＰＭＩ）をチャネル状態に応じて決定するＰＭＩ決定部；及び前記ＰＭＩを前記基地局装置に送信する送信部；を有する。
PCT/JP2008/069469 2007-10-30 2008-10-27 ユーザ装置、基地局装置及びｍｉｍｏ伝送制御方法 WO2009057559A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007282442A JP5069083B2 (ja) 2007-10-30 2007-10-30 ユーザ装置、基地局装置及びｍｉｍｏ伝送制御方法
JP2007-282442 2007-10-30

Publications (1)

Publication Number Publication Date
WO2009057559A1 true WO2009057559A1 (ja) 2009-05-07

Family

ID=40590950

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/069469 WO2009057559A1 (ja) 2007-10-30 2008-10-27 ユーザ装置、基地局装置及びｍｉｍｏ伝送制御方法

Country Status (2)

Country Link
JP (1) JP5069083B2 (ja)
WO (1) WO2009057559A1 (ja)

Cited By (4)

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WO2011020317A1 (zh) * 2009-08-19 2011-02-24 中兴通讯股份有限公司 一种秩自适应方法及装置
WO2012134334A1 (en) * 2011-04-01 2012-10-04 Intel Corporation Methods, apparatuses, and systems for flexible rank adaptation in a wireless communication network
US10462801B2 (en) 2017-05-05 2019-10-29 At&T Intellectual Property I, L.P. Multi-antenna transmission protocols for high doppler conditions
US10470072B2 (en) 2017-06-15 2019-11-05 At&T Intellectual Property I, L.P. Facilitation of multiple input multiple output communication for 5G or other next generation network

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WO2009096601A1 (en) * 2008-02-01 2009-08-06 Nec Corporation Estimating channel conditions in a mimo ofdm communication system
US20130336193A1 (en) 2012-06-19 2013-12-19 Qualcomm Incorporated Network information for assisting user equipment
US9264097B2 (en) 2009-06-04 2016-02-16 Qualcomm Incorporated Interference mitigation for downlink in a wireless communication system
JP5325672B2 (ja) 2009-06-23 2013-10-23 株式会社エヌ・ティ・ティ・ドコモ 基地局装置及び情報フィードバック方法
CN102201886B (zh) * 2010-03-22 2014-03-12 中兴通讯股份有限公司 闭环多输入多输出系统中预编码矩阵的选取方法和系统
KR101871707B1 (ko) * 2010-04-02 2018-06-27 엘지전자 주식회사 무선통신 시스템에서 채널상태정보 피드백 하는 단말 장치 및 그 방법
KR101843019B1 (ko) * 2010-04-30 2018-03-29 삼성전자주식회사 여러 리포팅 모드를 지원하는 다중 입출력 통신 시스템
CN102244564B (zh) 2010-05-11 2014-12-10 中兴通讯股份有限公司 多输入多输出mimo系统的下行传输方法和基站
IN2010DE02109A (ja) * 2010-09-03 2015-08-14 Motorola Mobility Inc
US8681651B2 (en) * 2010-11-05 2014-03-25 Qualcomm Incorporated Reference signal reception and channel state information determination for multiple nodes in a wireless communication network
JP5484304B2 (ja) * 2010-12-10 2014-05-07 三菱電機株式会社 無線基地局装置及び通信条件決定方法
CN102882657B (zh) 2011-07-15 2018-01-23 瑞典爱立信有限公司 用于上行链路秩自适应的方法、设备和系统
EP2642683B1 (en) 2012-03-19 2021-01-20 Alcatel Lucent Method and apparatus for resource allocation in a MIMO communication system
US9735848B2 (en) 2012-10-18 2017-08-15 Kyocera Corporation Mobile communication system and communication control method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Texas Instruments, Design Aspects of UE Feedback, R1-073423", 24 August 2007 *
NOTEL: "Rank Adaptation for Fixed Precording, R1-073297", 24 August 2007 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011020317A1 (zh) * 2009-08-19 2011-02-24 中兴通讯股份有限公司 一种秩自适应方法及装置
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
US8755810B2 (en) 2009-08-19 2014-06-17 Zte Corporation Method and device for rank adaptation
WO2012134334A1 (en) * 2011-04-01 2012-10-04 Intel Corporation Methods, apparatuses, and systems for flexible rank adaptation in a wireless communication network
US10462801B2 (en) 2017-05-05 2019-10-29 At&T Intellectual Property I, L.P. Multi-antenna transmission protocols for high doppler conditions
US10986645B2 (en) 2017-05-05 2021-04-20 At&T Intellectual Property I, L.P. Multi-antenna transmission protocols for high doppler conditions
US11452111B2 (en) 2017-05-05 2022-09-20 At&T Intellectual Property I, L.P. Multi-antenna transmission protocols for high doppler conditions
US10470072B2 (en) 2017-06-15 2019-11-05 At&T Intellectual Property I, L.P. Facilitation of multiple input multiple output communication for 5G or other next generation network
US10887784B2 (en) 2017-06-15 2021-01-05 At&T Intellectual Property I, L.P. Facilitation of multiple input multiple output communication for 5G or other next generation network
US11425590B2 (en) 2017-06-15 2022-08-23 At&T Intetllectual Property I, L.P. Facilitation of multiple input multiple output communication for 5G or other next generation network

Also Published As

Publication number Publication date
JP5069083B2 (ja) 2012-11-07
JP2009111781A (ja) 2009-05-21

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