JP5330223B2 - 送信／受信スイッチを用いてアンテナ毎のトレーニングのためにアンテナのアイソレーションを向上させる方法および装置 - Google Patents

送信／受信スイッチを用いてアンテナ毎のトレーニングのためにアンテナのアイソレーションを向上させる方法および装置 Download PDF

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JP5330223B2
JP5330223B2 JP2009501401A JP2009501401A JP5330223B2 JP 5330223 B2 JP5330223 B2 JP 5330223B2 JP 2009501401 A JP2009501401 A JP 2009501401A JP 2009501401 A JP2009501401 A JP 2009501401A JP 5330223 B2 JP5330223 B2 JP 5330223B2
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Japan
Prior art keywords
transmit
transmit antenna
antenna
active
given time
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JP2009501401A
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Japanese (ja)
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JP2009530965A5 (enExample
JP2009530965A (ja
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キャンベル，エドワード，イー．
ムジタバ，サイド，エー．
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Agere Systems LLC
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Agere Systems LLC
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    • 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
    • H04B7/0684—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 using different training sequences per antenna
    • 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
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2009501401A 2006-03-24 2006-07-31 送信／受信スイッチを用いてアンテナ毎のトレーニングのためにアンテナのアイソレーションを向上させる方法および装置 Expired - Fee Related JP5330223B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/388,330 2006-03-24
US11/388,330 US8694030B2 (en) 2006-03-24 2006-03-24 Method and apparatus for improved antenna isolation for per-antenna training using transmit/receive switch
PCT/US2006/029557 WO2007111631A1 (en) 2006-03-24 2006-07-31 Method and apparatus for improved antenna isolation for per-antenna training using transmit/receive switch

Publications (3)

Publication Number Publication Date
JP2009530965A JP2009530965A (ja) 2009-08-27
JP2009530965A5 JP2009530965A5 (enExample) 2009-10-08
JP5330223B2 true JP5330223B2 (ja) 2013-10-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009501401A Expired - Fee Related JP5330223B2 (ja) 2006-03-24 2006-07-31 送信／受信スイッチを用いてアンテナ毎のトレーニングのためにアンテナのアイソレーションを向上させる方法および装置

Country Status (6)

Country Link
US (1) US8694030B2 (enExample)
EP (1) EP2002559B1 (enExample)
JP (1) JP5330223B2 (enExample)
KR (1) KR101280205B1 (enExample)
DE (1) DE602006017268D1 (enExample)
WO (1) WO2007111631A1 (enExample)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102664667B (zh) 2004-05-04 2018-04-06 索尼公司 一种移动终端、方法和基站
KR20060098111A (ko) * 2005-03-09 2006-09-18 삼성전자주식회사 휴대용 기기
US7596112B2 (en) * 2005-03-22 2009-09-29 Interdigital Technology Corporation Method and apparatus for rate compatible dirty paper coding
US7856250B2 (en) * 2006-03-28 2010-12-21 Samsung Electronics Co., Ltd. Apparatus and method for managing SOHO BTS interference using antenna beam coverage based on pilot strength measurement messages
US8854252B2 (en) * 2008-09-12 2014-10-07 Propagation Research Associates, Inc. Multi-mode, multi-static interferometer utilizing pseudo orthogonal codes
US8718169B2 (en) * 2010-06-15 2014-05-06 Qualcomm Incorporated Using a field format on a communication device
KR20120018266A (ko) * 2010-08-20 2012-03-02 삼성전자주식회사 직교 주파수 분할 다중 접속 방법을 사용하는 무선 통신 시스템에서 기지국의 전력 증폭기 소모 전력 제어 방법 및 장치
TWI452861B (zh) * 2010-10-08 2014-09-11 Realtek Semiconductor Corp 天線分集裝置與天線分集方法
US10571224B2 (en) 2015-05-04 2020-02-25 Propagation Research Associates, Inc. Systems, methods and computer-readable media for improving platform guidance or navigation using uniquely coded signals
JP6480286B2 (ja) * 2015-08-07 2019-03-06 日本電信電話株式会社 無線通信システム及び無線通信方法
US9736794B1 (en) 2016-03-30 2017-08-15 T-Mobile Usa, Inc. Dynamic antenna reference signal transmission
US10356719B2 (en) 2016-06-24 2019-07-16 Microsoft Technology Licensing, Llc Skip-correlation based symmetric carrier sensing with multiple power levels
CN112153703A (zh) 2016-08-15 2020-12-29 华为技术有限公司 通信系统中传输唤醒包的方法和设备
US11018705B1 (en) 2020-07-17 2021-05-25 Propagation Research Associates, Inc. Interference mitigation, target detection, location and measurement using separable waveforms transmitted from spatially separated antennas

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002009679A (ja) 2000-06-26 2002-01-11 Matsushita Electric Ind Co Ltd 無線端末装置
US6711124B2 (en) 2001-05-25 2004-03-23 Ericsson Inc. Time interval based channel estimation with transmit diversity
US6987950B2 (en) * 2002-07-25 2006-01-17 Qualcomm, Incorporated Radio with duplexer bypass capability
US7352688B1 (en) * 2002-12-31 2008-04-01 Cisco Technology, Inc. High data rate wireless bridging
US7916803B2 (en) 2003-04-10 2011-03-29 Qualcomm Incorporated Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices
JP4616256B2 (ja) 2003-06-30 2011-01-19 アギア システムズ インコーポレーテッド 下位受信機を備えた多入力多出力通信システム内の後方互換通信の方法および装置
US7352718B1 (en) * 2003-07-22 2008-04-01 Cisco Technology, Inc. Spatial division multiple access for wireless networks
US6917311B2 (en) 2003-08-11 2005-07-12 Texas Instruments Incorporated Orthogonal preamble encoder, method of encoding orthogonal preambles and multiple-input, multiple-output communication system employing the same
US20050169397A1 (en) * 2004-01-29 2005-08-04 Texas Instruments Incorporated Scalable data reception gain control for a multiple-input, multiple-output (MIMO) communications system
US7643848B2 (en) * 2004-04-13 2010-01-05 Qualcomm, Incorporated Multi-antenna transceiver system
US8619907B2 (en) 2004-06-10 2013-12-31 Agere Systems, LLC Method and apparatus for preamble training in a multiple antenna communication system
KR100719339B1 (ko) * 2004-08-13 2007-05-17 삼성전자주식회사 다중 입력 다중 출력 무선 통신 시스템에서 채널 추정을통한 프레임 송수신 방법

Also Published As

Publication number Publication date
KR101280205B1 (ko) 2013-06-28
EP2002559A1 (en) 2008-12-17
US20070224947A1 (en) 2007-09-27
WO2007111631A1 (en) 2007-10-04
KR20080106447A (ko) 2008-12-05
JP2009530965A (ja) 2009-08-27
EP2002559B1 (en) 2010-09-29
US8694030B2 (en) 2014-04-08
DE602006017268D1 (de) 2010-11-11

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