WO2009025029A1 - 移動局および送信ダイバーシチ制御方法 - Google Patents

移動局および送信ダイバーシチ制御方法 Download PDF

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Publication number
WO2009025029A1
WO2009025029A1 PCT/JP2007/066184 JP2007066184W WO2009025029A1 WO 2009025029 A1 WO2009025029 A1 WO 2009025029A1 JP 2007066184 W JP2007066184 W JP 2007066184W WO 2009025029 A1 WO2009025029 A1 WO 2009025029A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission diversity
control method
mobile station
diversity control
transmitter station
Prior art date
Application number
PCT/JP2007/066184
Other languages
English (en)
French (fr)
Inventor
Yasumitsu Ban
Akira Ito
Original Assignee
Fujitsu Limited
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 Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2007/066184 priority Critical patent/WO2009025029A1/ja
Priority to EP07805958.1A priority patent/EP2182650B1/en
Priority to JP2009528903A priority patent/JP5115559B2/ja
Publication of WO2009025029A1 publication Critical patent/WO2009025029A1/ja
Priority to US12/708,135 priority patent/US8270546B2/en

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
    • H04B7/0686—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

Abstract

　送信ダイバーシチ機能を備えた送信局に対して送信ダイバーシチの開始、停止を受信局より要求する送信ダイバーシチ制御方法において、信号の相関に基づいてマルチパス干渉を低減する等化器を備え、前記等化器による効果が小さければ送信ダイバーシチ開始を送信局に要求し、前記等化器による効果が大きければ送信ダイバーシチ停止を送信局に要求する。
PCT/JP2007/066184 2007-08-21 2007-08-21 移動局および送信ダイバーシチ制御方法 WO2009025029A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2007/066184 WO2009025029A1 (ja) 2007-08-21 2007-08-21 移動局および送信ダイバーシチ制御方法
EP07805958.1A EP2182650B1 (en) 2007-08-21 2007-08-21 Mobile station and transmission diversity control method
JP2009528903A JP5115559B2 (ja) 2007-08-21 2007-08-21 送信ダイバーシチ制御方法
US12/708,135 US8270546B2 (en) 2007-08-21 2010-02-18 Reception station, communication system and transmission diversity control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/066184 WO2009025029A1 (ja) 2007-08-21 2007-08-21 移動局および送信ダイバーシチ制御方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/708,135 Continuation US8270546B2 (en) 2007-08-21 2010-02-18 Reception station, communication system and transmission diversity control method

Publications (1)

Publication Number Publication Date
WO2009025029A1 true WO2009025029A1 (ja) 2009-02-26

Family

ID=40377940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/066184 WO2009025029A1 (ja) 2007-08-21 2007-08-21 移動局および送信ダイバーシチ制御方法

Country Status (4)

Country Link
US (1) US8270546B2 (ja)
EP (1) EP2182650B1 (ja)
JP (1) JP5115559B2 (ja)
WO (1) WO2009025029A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2416502A1 (en) * 2009-04-21 2012-02-08 Huawei Technologies Co., Ltd. Method and apparatus for multiple input multiple output (mimo) downlink transmission control
JP2014507866A (ja) * 2011-01-10 2014-03-27 クゥアルコム・インコーポレイテッド Ｈｓ−ｓｃｃｈ命令を介したｃｌｔｄ動作の動的なイネーブルおよびディセーブル

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050018625A1 (en) * 2003-07-10 2005-01-27 Matsushita Electric Industrial Co., Ltd. Radio communication system and communication method
JP5453875B2 (ja) * 2009-03-27 2014-03-26 富士通株式会社 中継装置、中継方法、受信装置および受信方法
GB2487225B (en) * 2011-01-14 2017-12-06 Nvidia Tech Uk Limited Receiving an input signal over a channel of a wireless network
EP2950459B1 (en) * 2012-04-11 2019-10-02 Huawei Technologies Co., Ltd. Method and apparatus for configuring transmission mode
US10925016B2 (en) * 2016-10-07 2021-02-16 Samsung Electronics Co., Ltd. Apparatus and method for time synchronization in wireless communication system

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Publication number Priority date Publication date Assignee Title
JPH0832498A (ja) 1994-07-20 1996-02-02 Nippon Telegr & Teleph Corp <Ntt> 送信ダイバーシチ方式
JP2001044900A (ja) 1999-05-28 2001-02-16 Texas Instr Inc <Ti> 複数の送信アンテナを有し開ループおよび閉ループ送信ダイバーシチを結合する無線システム
JP2001515295A (ja) * 1997-09-04 2001-09-18 モトローラ・インコーポレイテッド 通信システムにおいて信号を送信するための装置および方法
JP2002515681A (ja) 1998-05-13 2002-05-28 サムスン エレクトロニクス カンパニー リミテッド 移動通信システムの時間スイッチング送信ダイバーシティ装置及びその制御方法
JP2004153585A (ja) * 2002-10-31 2004-05-27 Sony Ericsson Mobilecommunications Japan Inc 周波数偏移検出回路及び周波数偏移検出方法、携帯通信端末
JP2004320528A (ja) * 2003-04-17 2004-11-11 Mitsubishi Electric Corp ダイバーシチ受信装置

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Publication number Priority date Publication date Assignee Title
US6724828B1 (en) * 1999-01-19 2004-04-20 Texas Instruments Incorporated Mobile switching between STTD and non-diversity mode
US7050832B2 (en) * 2001-11-28 2006-05-23 Arraycomm Llc Variable diversity transmission in a radio communications system based on characteristics of a received signal
TWM240732U (en) * 2002-08-07 2004-08-11 Interdigital Tech Corp Base station using closed loop transmit diversity of point to multipoint physical channels
US7324583B2 (en) 2004-02-13 2008-01-29 Nokia Corporation Chip-level or symbol-level equalizer structure for multiple transmit and receiver antenna configurations
US20050195886A1 (en) * 2004-03-02 2005-09-08 Nokia Corporation CPICH processing for SINR estimation in W-CDMA system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0832498A (ja) 1994-07-20 1996-02-02 Nippon Telegr & Teleph Corp <Ntt> 送信ダイバーシチ方式
JP2001515295A (ja) * 1997-09-04 2001-09-18 モトローラ・インコーポレイテッド 通信システムにおいて信号を送信するための装置および方法
JP2002515681A (ja) 1998-05-13 2002-05-28 サムスン エレクトロニクス カンパニー リミテッド 移動通信システムの時間スイッチング送信ダイバーシティ装置及びその制御方法
JP2001044900A (ja) 1999-05-28 2001-02-16 Texas Instr Inc <Ti> 複数の送信アンテナを有し開ループおよび閉ループ送信ダイバーシチを結合する無線システム
JP2004153585A (ja) * 2002-10-31 2004-05-27 Sony Ericsson Mobilecommunications Japan Inc 周波数偏移検出回路及び周波数偏移検出方法、携帯通信端末
JP2004320528A (ja) * 2003-04-17 2004-11-11 Mitsubishi Electric Corp ダイバーシチ受信装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2182650A4

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2416502A1 (en) * 2009-04-21 2012-02-08 Huawei Technologies Co., Ltd. Method and apparatus for multiple input multiple output (mimo) downlink transmission control
EP2416502A4 (en) * 2009-04-21 2012-04-18 Huawei Tech Co Ltd METHOD AND APPARATUS FOR DOWNLINK TRANSMISSION CONTROL WITH MULTIPLE MULTIPLE INPUT OUTPUTS (MIMO)
US8611244B2 (en) 2009-04-21 2013-12-17 Huawei Technologies Co., Ltd. Method and apparatus for multi-input multi-output downlink transmission control
JP2014507866A (ja) * 2011-01-10 2014-03-27 クゥアルコム・インコーポレイテッド Ｈｓ−ｓｃｃｈ命令を介したｃｌｔｄ動作の動的なイネーブルおよびディセーブル

Also Published As

Publication number Publication date
EP2182650A1 (en) 2010-05-05
EP2182650A4 (en) 2013-11-06
JP5115559B2 (ja) 2013-01-09
US8270546B2 (en) 2012-09-18
JPWO2009025029A1 (ja) 2010-11-18
US20100142609A1 (en) 2010-06-10
EP2182650B1 (en) 2014-12-17

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