WO2008126378A1 - 無線通信システム、無線通信装置及び無線通信方法 - Google Patents

無線通信システム、無線通信装置及び無線通信方法 Download PDF

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Publication number
WO2008126378A1
WO2008126378A1 PCT/JP2008/000801 JP2008000801W WO2008126378A1 WO 2008126378 A1 WO2008126378 A1 WO 2008126378A1 JP 2008000801 W JP2008000801 W JP 2008000801W WO 2008126378 A1 WO2008126378 A1 WO 2008126378A1
Authority
WO
WIPO (PCT)
Prior art keywords
beam number
radio communication
base station
user terminal
radio base
Prior art date
Application number
PCT/JP2008/000801
Other languages
English (en)
French (fr)
Inventor
Masayuki Hoshino
Katsuhiko Hiramatsu
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to CN200880011117.2A priority Critical patent/CN101652936B/zh
Priority to EP08720668A priority patent/EP2134016A1/en
Priority to JP2009508899A priority patent/JP5153006B2/ja
Priority to US12/532,555 priority patent/US8755755B2/en
Publication of WO2008126378A1 publication Critical patent/WO2008126378A1/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
    • H04B7/06—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
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode 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
    • H04B7/0613—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
    • H04B7/0617—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 for beam forming
    • 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
    • H04B7/0641—Differential feedback
    • 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
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection

Landscapes

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

Abstract

　プリコーディングによるビーム選択の信頼性を向上させる。 　ユーザ端末５２は、受信したパイロット信号のチャネル推定値に基づき、次のフレーム（ｔ＋１）における最適なビーム（ビーム番号ｂ）を選択し、無線基地局５１により通知された今回送信時のビーム番号ａと、選択した次回送信時に希望するビーム番号ｂとの差分値Ｄ（＝ｂ－ａ）をフィードバック信号として無線基地局５１に送信する。無線基地局５１は、前回の送信時に通知したビーム番号ａを保存しておき、フィードバック信号を受信して受け取った差分値Ｄによるビーム番号と前回通知したビーム番号ａとを合成し、ユーザ端末５２が希望するビーム番号ｂを復元する。そして、ビーム番号ｂに適応したプリコーディング処理を行い、適切なビーム番号ｂのビームを形成した状態でユーザ端末５２へ送信する。
PCT/JP2008/000801 2007-03-30 2008-03-28 無線通信システム、無線通信装置及び無線通信方法 WO2008126378A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN200880011117.2A CN101652936B (zh) 2007-03-30 2008-03-28 无线电通信系统、无线电通信装置以及无线电通信方法
EP08720668A EP2134016A1 (en) 2007-03-30 2008-03-28 Radio communication system, radio communication device, and radio communication method
JP2009508899A JP5153006B2 (ja) 2007-03-30 2008-03-28 無線通信システム、無線通信装置及び無線通信方法
US12/532,555 US8755755B2 (en) 2007-03-30 2008-03-28 Radio communication system, radio communication apparatus, and radio communication method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-094569 2007-03-30
JP2007094569 2007-03-30

Publications (1)

Publication Number Publication Date
WO2008126378A1 true WO2008126378A1 (ja) 2008-10-23

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PCT/JP2008/000801 WO2008126378A1 (ja) 2007-03-30 2008-03-28 無線通信システム、無線通信装置及び無線通信方法

Country Status (5)

Country Link
US (1) US8755755B2 (ja)
EP (1) EP2134016A1 (ja)
JP (1) JP5153006B2 (ja)
CN (1) CN101652936B (ja)
WO (1) WO2008126378A1 (ja)

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JP2009033744A (ja) * 2007-07-24 2009-02-12 Ntt Docomo Inc チャネルベクトル量子化に基いたスケジューリング及びプリコーディングの方法及び装置
CN102204115A (zh) * 2008-11-02 2011-09-28 Lg电子株式会社 用于在多输入输出系统中进行空间复用的预编码方法
JP2011223579A (ja) * 2010-04-07 2011-11-04 Toshiba Corp チャネル状態情報フィードバックに関する二重インジケータスキーム
CN102326338A (zh) * 2009-02-23 2012-01-18 诺基亚公司 用于功能受限装置的波束成形训练
CN102474311A (zh) * 2009-07-28 2012-05-23 三星电子株式会社 用于基于闭环变换的码本的天线波束形成的方法和装置
JP2012512403A (ja) * 2008-12-17 2012-05-31 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） 電気通信システムにおける測位
JP2012525796A (ja) * 2009-04-29 2012-10-22 インテル・コーポレーション 閉ループｍｉｍｏビーム形成のための差分フィードバックスキーム
WO2015029604A1 (ja) * 2013-09-02 2015-03-05 ソニー株式会社 通信制御装置、通信制御方法及び端末装置
JP2018527802A (ja) * 2015-07-31 2018-09-20 株式会社Ｎｔｔドコモ ビーム参照信号の送信方法、ビーム選択方法、基地局、およびユーザ端末

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KR101555820B1 (ko) * 2009-12-02 2015-10-06 삼성전자주식회사 접속망의 클래스에 따라 비대칭적인 피드백 기법을 사용하는 계층 셀 통신 시스템
CN102131277B (zh) * 2010-01-19 2014-11-05 中兴通讯股份有限公司 一种td-scdma系统多业务并行下的终端信道估计方法和系统
KR101800221B1 (ko) * 2011-08-11 2017-11-22 삼성전자주식회사 무선통신 시스템에서 빔 추적 방법 및 장치
JP5989798B2 (ja) * 2011-12-08 2016-09-07 インターデイジタル パテント ホールディングス インコーポレイテッド ミリ波通信システムの方法および装置
JP6276065B2 (ja) * 2014-02-26 2018-02-07 パナソニック株式会社 無線通信方法及び無線通信装置
JP2015185953A (ja) * 2014-03-20 2015-10-22 株式会社Ｎｔｔドコモ ビーム選択方法、基地局、およびユーザ装置
JP6121931B2 (ja) * 2014-03-20 2017-04-26 株式会社Ｎｔｔドコモ 移動通信システム、基地局、およびユーザ装置
EP3214772A4 (en) * 2014-10-31 2017-10-25 Huawei Technologies Co., Ltd. Beam adjustment method, user equipment, and base station
DK3562247T3 (da) 2016-04-07 2020-08-03 Ericsson Telefon Ab L M Radionetværksknude, trådløs indretning og fremgangsmåder, der udføres deri
WO2018064801A1 (en) * 2016-10-08 2018-04-12 Nokia Technologies Oy Explicit channel state information feedback
US10542545B2 (en) 2017-02-06 2020-01-21 Mediatek Inc. Beam failure recovery mechanism for multi-beam operation
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Cited By (15)

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Publication number Priority date Publication date Assignee Title
JP2009033744A (ja) * 2007-07-24 2009-02-12 Ntt Docomo Inc チャネルベクトル量子化に基いたスケジューリング及びプリコーディングの方法及び装置
CN102204115A (zh) * 2008-11-02 2011-09-28 Lg电子株式会社 用于在多输入输出系统中进行空间复用的预编码方法
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JP2012512403A (ja) * 2008-12-17 2012-05-31 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） 電気通信システムにおける測位
CN102326338A (zh) * 2009-02-23 2012-01-18 诺基亚公司 用于功能受限装置的波束成形训练
CN102326338B (zh) * 2009-02-23 2014-11-05 诺基亚公司 用于功能受限装置的波束成形训练方法及装置
JP2012525796A (ja) * 2009-04-29 2012-10-22 インテル・コーポレーション 閉ループｍｉｍｏビーム形成のための差分フィードバックスキーム
CN102474311A (zh) * 2009-07-28 2012-05-23 三星电子株式会社 用于基于闭环变换的码本的天线波束形成的方法和装置
CN102474311B (zh) * 2009-07-28 2015-06-17 三星电子株式会社 用于基于闭环变换的码本的天线波束形成的方法和装置
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JP2011223579A (ja) * 2010-04-07 2011-11-04 Toshiba Corp チャネル状態情報フィードバックに関する二重インジケータスキーム
WO2015029604A1 (ja) * 2013-09-02 2015-03-05 ソニー株式会社 通信制御装置、通信制御方法及び端末装置
JP2018527802A (ja) * 2015-07-31 2018-09-20 株式会社Ｎｔｔドコモ ビーム参照信号の送信方法、ビーム選択方法、基地局、およびユーザ端末

Also Published As

Publication number Publication date
US20100103044A1 (en) 2010-04-29
US8755755B2 (en) 2014-06-17
JP5153006B2 (ja) 2013-02-27
CN101652936B (zh) 2013-05-08
EP2134016A1 (en) 2009-12-16
JPWO2008126378A1 (ja) 2010-07-22
CN101652936A (zh) 2010-02-17

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