WO2009004768A1 - 無線通信装置、無線通信システム及び無線通信方法 - Google Patents

無線通信装置、無線通信システム及び無線通信方法 Download PDF

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Publication number
WO2009004768A1
WO2009004768A1 PCT/JP2008/001643 JP2008001643W WO2009004768A1 WO 2009004768 A1 WO2009004768 A1 WO 2009004768A1 JP 2008001643 W JP2008001643 W JP 2008001643W WO 2009004768 A1 WO2009004768 A1 WO 2009004768A1
Authority
WO
WIPO (PCT)
Prior art keywords
radio communication
beam number
reported
beams
selecting
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2008/001643
Other languages
English (en)
French (fr)
Inventor
Masayuki Hoshino
Katsuhiko Hiramatsu
Yasuaki Yuda
Ryohei Kimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Corp filed Critical Panasonic Corp
Priority to US12/664,953 priority Critical patent/US8379750B2/en
Priority to EP08776728.1A priority patent/EP2175573B1/en
Priority to CN200880023518XA priority patent/CN101689901B/zh
Priority to JP2009521509A priority patent/JP5037615B2/ja
Publication of WO2009004768A1 publication Critical patent/WO2009004768A1/ja
Anticipated expiration legal-status Critical
Priority to US13/735,346 priority patent/US8654820B2/en
Priority to US14/103,134 priority patent/US8964873B2/en
Ceased legal-status Critical Current

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
    • H04B7/0613—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
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam 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
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback systems

Landscapes

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

Abstract

　プリコーディングにおいて複数のビームを選択する際のシグナリング量を削減し、スループットを向上させる。 　プリコーディング適用時に複数のビームを選択する場合、受信局となるユーザ端末１０２から送信局となる無線基地局１０１へのフィードバック信号においてビーム番号を通知する際、品質順位が高く時間変動が少ない上位ビーム番号を所定期間括り付けにして固定とし、この期間内は下位ビーム番号のみを通知する。例えば、６つのビームから３つのビームを選択する場合に、まず上位２つのビーム番号（ビーム番号ｂ、ｃ）を通知して所定期間固定とし、その後所定期間内は下位１つのビーム番号（ビーム番号ｅ）のみを通知し、ビーム番号通知用のシグナリング量を削減する。
PCT/JP2008/001643 2007-07-05 2008-06-24 無線通信装置、無線通信システム及び無線通信方法 Ceased WO2009004768A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US12/664,953 US8379750B2 (en) 2007-07-05 2008-06-24 Radio communication for reducing the signaling amount in selecting a plurality of beams in pre-coding for enhancing throughput
EP08776728.1A EP2175573B1 (en) 2007-07-05 2008-06-24 Radio communication device, radio communication system, radio communication method
CN200880023518XA CN101689901B (zh) 2007-07-05 2008-06-24 无线通信装置、无线通信系统以及无线通信方法
JP2009521509A JP5037615B2 (ja) 2007-07-05 2008-06-24 無線通信装置、無線通信システム及び無線通信方法
US13/735,346 US8654820B2 (en) 2007-07-05 2013-01-07 Radio communication for reducing the signaling amount in selecting a plurality of beams in pre-coding for enhancing throughput
US14/103,134 US8964873B2 (en) 2007-07-05 2013-12-11 Radio communication for reducing the signaling amount in selecting a plurality of beams in pre-coding for enhancing throughput

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-177119 2007-07-05
JP2007177119 2007-07-05

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/664,953 A-371-Of-International US8379750B2 (en) 2007-07-05 2008-06-24 Radio communication for reducing the signaling amount in selecting a plurality of beams in pre-coding for enhancing throughput
US13/735,346 Continuation US8654820B2 (en) 2007-07-05 2013-01-07 Radio communication for reducing the signaling amount in selecting a plurality of beams in pre-coding for enhancing throughput

Publications (1)

Publication Number Publication Date
WO2009004768A1 true WO2009004768A1 (ja) 2009-01-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/001643 Ceased WO2009004768A1 (ja) 2007-07-05 2008-06-24 無線通信装置、無線通信システム及び無線通信方法

Country Status (5)

Country Link
US (3) US8379750B2 (ja)
EP (1) EP2175573B1 (ja)
JP (2) JP5037615B2 (ja)
CN (2) CN102664663B (ja)
WO (1) WO2009004768A1 (ja)

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JP2012521166A (ja) * 2009-03-16 2012-09-10 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 キャリアアグリゲーションおよびクラスタードｄｆｔを用いたアップリンクｍｉｍｏのためのデータおよび制御多重化
JP2014526217A (ja) * 2011-08-12 2014-10-02 サムスン エレクトロニクス カンパニー リミテッド 無線通信システムにおける適応的ビームフォーミング装置及び方法
KR101798341B1 (ko) 2016-11-25 2017-11-15 연세대학교 산학협력단 밀리미터 웨이브 채널에서의 빔 패턴 추정 방법
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012521166A (ja) * 2009-03-16 2012-09-10 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 キャリアアグリゲーションおよびクラスタードｄｆｔを用いたアップリンクｍｉｍｏのためのデータおよび制御多重化
JP2014526217A (ja) * 2011-08-12 2014-10-02 サムスン エレクトロニクス カンパニー リミテッド 無線通信システムにおける適応的ビームフォーミング装置及び方法
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US11671166B2 (en) 2016-09-21 2023-06-06 Panasonic Intellectual Property Corporation Of America Transmitting method, transmitting device, receiving method, and receiving device
US12273179B2 (en) 2016-09-21 2025-04-08 Panasonic Intellectual Property Corporation Of America Transmitting method, transmitting device, receiving method, and receiving device
KR101798341B1 (ko) 2016-11-25 2017-11-15 연세대학교 산학협력단 밀리미터 웨이브 채널에서의 빔 패턴 추정 방법

Also Published As

Publication number Publication date
US8964873B2 (en) 2015-02-24
JPWO2009004768A1 (ja) 2010-08-26
EP2175573B1 (en) 2017-06-14
US8379750B2 (en) 2013-02-19
CN101689901B (zh) 2012-11-07
US20100189189A1 (en) 2010-07-29
JP5377714B2 (ja) 2013-12-25
US8654820B2 (en) 2014-02-18
EP2175573A4 (en) 2014-01-22
CN102664663B (zh) 2015-04-08
JP2012217194A (ja) 2012-11-08
CN101689901A (zh) 2010-03-31
JP5037615B2 (ja) 2012-10-03
US20130121386A1 (en) 2013-05-16
US20140098903A1 (en) 2014-04-10
CN102664663A (zh) 2012-09-12
EP2175573A1 (en) 2010-04-14

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