JP4433867B2 - 無線通信システム - Google Patents

無線通信システム Download PDF

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Publication number
JP4433867B2
JP4433867B2 JP2004134744A JP2004134744A JP4433867B2 JP 4433867 B2 JP4433867 B2 JP 4433867B2 JP 2004134744 A JP2004134744 A JP 2004134744A JP 2004134744 A JP2004134744 A JP 2004134744A JP 4433867 B2 JP4433867 B2 JP 4433867B2
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JP
Japan
Prior art keywords
spatial multiplexing
transmitter
loop spatial
mode
matrix
Prior art date
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Expired - Fee Related
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JP2004134744A
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English (en)
Japanese (ja)
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JP2005318332A5 (enExample
JP2005318332A (ja
Inventor
亮 澤井
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Sony Corp
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Sony Corp
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Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP2004134744A priority Critical patent/JP4433867B2/ja
Priority to US11/108,664 priority patent/US7634017B2/en
Priority to CN2005100684558A priority patent/CN1691536B/zh
Publication of JP2005318332A publication Critical patent/JP2005318332A/ja
Publication of JP2005318332A5 publication Critical patent/JP2005318332A5/ja
Application granted granted Critical
Publication of JP4433867B2 publication Critical patent/JP4433867B2/ja
Priority to US13/326,024 priority patent/USRE44320E1/en
Priority to US13/901,182 priority patent/USRE45528E1/en
Priority to US14/718,917 priority patent/USRE47436E1/en
Priority to US16/395,879 priority patent/USRE48662E1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • 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
    • H04L1/0675—Space-time coding characterised by the signaling
    • H04L1/0687—Full feedback

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2004134744A 2004-04-28 2004-04-28 無線通信システム Expired - Fee Related JP4433867B2 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2004134744A JP4433867B2 (ja) 2004-04-28 2004-04-28 無線通信システム
US11/108,664 US7634017B2 (en) 2004-04-28 2005-04-19 Wireless communication system
CN2005100684558A CN1691536B (zh) 2004-04-28 2005-04-28 无线通信系统
US13/326,024 USRE44320E1 (en) 2004-04-28 2011-12-14 Wireless communication system
US13/901,182 USRE45528E1 (en) 2004-04-28 2013-05-23 Wireless communication system
US14/718,917 USRE47436E1 (en) 2004-04-28 2015-05-21 Wireless communication system
US16/395,879 USRE48662E1 (en) 2004-04-28 2019-04-26 Wireless communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004134744A JP4433867B2 (ja) 2004-04-28 2004-04-28 無線通信システム

Publications (3)

Publication Number Publication Date
JP2005318332A JP2005318332A (ja) 2005-11-10
JP2005318332A5 JP2005318332A5 (enExample) 2007-05-31
JP4433867B2 true JP4433867B2 (ja) 2010-03-17

Family

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Family Applications (1)

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JP2004134744A Expired - Fee Related JP4433867B2 (ja) 2004-04-28 2004-04-28 無線通信システム

Country Status (3)

Country Link
US (5) US7634017B2 (enExample)
JP (1) JP4433867B2 (enExample)
CN (1) CN1691536B (enExample)

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KR101231357B1 (ko) * 2006-04-06 2013-02-07 엘지전자 주식회사 다중 안테나 시스템에서 채널 상태 정보 귀환 방법 및데이터 송신 방법
JP4775288B2 (ja) * 2006-04-27 2011-09-21 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
US8542589B2 (en) * 2006-06-05 2013-09-24 Qualcomm Incorporated Method and apparatus for providing beamforming feedback in wireless communication systems
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KR100954819B1 (ko) * 2007-01-22 2010-04-28 이노베이티브 소닉 리미티드 무선통신시스템에서 다중입력다중출력（ｍｉｍｏ）프로세스를 개선하는 방법 및 장치
JP4858199B2 (ja) * 2007-02-02 2012-01-18 住友電気工業株式会社 無線通信の受信装置及び受信方法
JP4459254B2 (ja) * 2007-05-31 2010-04-28 株式会社東芝 無線通信装置
US8199857B2 (en) * 2007-06-15 2012-06-12 Broadcom Corporation Apparatus to reconfigure an 802.11a/n transceiver to support 802.11j/10 MHz mode of operation
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US8116408B2 (en) 2007-06-15 2012-02-14 Broadcom Corporation Gain control for reduced interframe spacing (RIFS)
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WO2009011126A1 (ja) * 2007-07-18 2009-01-22 Panasonic Corporation 受信装置、送信装置及び適応伝送レート制御方法
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JP5069579B2 (ja) * 2008-01-30 2012-11-07 京セラ株式会社 無線通信システム、無線通信装置および無線通信方法
CN101505205A (zh) * 2008-02-05 2009-08-12 夏普株式会社 基于波达方向的开环mimo方法、基站及用户设备
KR101485184B1 (ko) * 2008-04-30 2015-01-23 엘지전자 주식회사 무선통신 시스템에서 다중셀 특정 메시지 획득방법
JP4605266B2 (ja) * 2008-07-23 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、エンコード装置及びエンコード方法、並びにコンピュータ・プログラム
GB2469080B (en) * 2009-03-31 2011-09-07 Toshiba Res Europ Ltd Wireless communications method and apparatus
CN101873159B (zh) * 2009-04-21 2013-01-16 华为技术有限公司 一种多输入多输出下行传输控制方法及装置
US8218492B2 (en) * 2009-06-26 2012-07-10 Intel Corporation Apparatus, systems and methods for switching MIMO transmission techniques in wireless communication systems
CN102239711B (zh) * 2009-07-01 2013-09-11 华为技术有限公司 反馈信道信息和获取信道矩阵的方法和装置
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
JP5512458B2 (ja) * 2010-06-17 2014-06-04 パナソニック株式会社 プリコーディング方法、プリコーディング装置、送信方法、送信装置、受信方法および受信装置
KR101081317B1 (ko) * 2010-07-12 2011-11-08 전북대학교산학협력단 릴레이 기반의 ｄｆ 협력 무선 네트워크에서 분산형 μιμο 채널 프리코딩 및 디코딩 방법
JP5620888B2 (ja) * 2011-07-26 2014-11-05 京セラ株式会社 無線基地局及び通信制御方法
US20150072719A1 (en) * 2011-12-13 2015-03-12 Kyocera Corporation Mobile terminal, wireless communication system and wireless communication method
CN102771062B (zh) * 2012-04-11 2014-12-03 华为技术有限公司 一种传输模式配置方法和装置
WO2014019223A1 (en) * 2012-08-03 2014-02-06 Ralink Technology Corp. Radio-frequency processing circuit and related wireless communication device
US9337982B2 (en) * 2013-04-05 2016-05-10 Qualcomm Incorporated Adaptive antenna management in LTE
JP2015076700A (ja) * 2013-10-08 2015-04-20 株式会社Ｎｔｔドコモ 無線装置、無線制御装置及び通信制御方法
US9735919B2 (en) 2014-05-09 2017-08-15 Qualcomm Incorporated Updates to MU-MIMO rate adaptation algorithm
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Also Published As

Publication number Publication date
USRE45528E1 (en) 2015-05-26
CN1691536A (zh) 2005-11-02
US7634017B2 (en) 2009-12-15
US20050243942A1 (en) 2005-11-03
USRE47436E1 (en) 2019-06-11
CN1691536B (zh) 2010-09-29
JP2005318332A (ja) 2005-11-10
USRE44320E1 (en) 2013-06-25
USRE48662E1 (en) 2021-07-27

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