HK1057970A2 - Base station using closed loop transmit diversity of point to multipoint physical channels - Google Patents

Base station using closed loop transmit diversity of point to multipoint physical channels

Info

Publication number
HK1057970A2
HK1057970A2 HK03105653A HK03105653A HK1057970A2 HK 1057970 A2 HK1057970 A2 HK 1057970A2 HK 03105653 A HK03105653 A HK 03105653A HK 03105653 A HK03105653 A HK 03105653A HK 1057970 A2 HK1057970 A2 HK 1057970A2
Authority
HK
Hong Kong
Prior art keywords
base station
point
closed loop
physical channels
transmit diversity
Prior art date
Application number
HK03105653A
Other languages
English (en)
Inventor
Stephen E Terry
Ariela Zeira
Original Assignee
Interdigital Tech 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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of HK1057970A2 publication Critical patent/HK1057970A2/xx

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
    • H04B7/0619—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
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
HK03105653A 2002-08-07 2003-08-07 Base station using closed loop transmit diversity of point to multipoint physical channels HK1057970A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40219902P 2002-08-07 2002-08-07

Publications (1)

Publication Number Publication Date
HK1057970A2 true HK1057970A2 (en) 2004-04-08

Family

ID=29780555

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03105653A HK1057970A2 (en) 2002-08-07 2003-08-07 Base station using closed loop transmit diversity of point to multipoint physical channels

Country Status (10)

Country Link
US (1) US7181176B2 (de)
EP (1) EP1527634A4 (de)
KR (3) KR20040014326A (de)
CN (1) CN2686249Y (de)
AR (1) AR040815A1 (de)
AU (1) AU2003261376A1 (de)
DE (1) DE20312161U1 (de)
HK (1) HK1057970A2 (de)
TW (4) TWI334739B (de)
WO (1) WO2004016006A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007037151A1 (ja) * 2005-09-28 2007-04-05 Nec Corporation 移動機、移動通信システム及びアンテナベリフィケーション方法
JP5115559B2 (ja) * 2007-08-21 2013-01-09 富士通株式会社 送信ダイバーシチ制御方法
WO2010095824A2 (ko) * 2009-02-20 2010-08-26 (주)엘지전자 조정 다지점 송신을 통한 데이터 통신 방법 및 장치
US11569886B2 (en) * 2019-04-01 2023-01-31 Qualcomm Incorporated Network-sensitive transmit diversity scheme

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5812935A (en) * 1993-04-17 1998-09-22 Hughes Electronics Cellular system employing base station transmit diversity according to transmission quality level
US5918154A (en) * 1995-08-23 1999-06-29 Pcs Wireless, Inc. Communications systems employing antenna diversity
FI105740B (fi) 1995-09-29 2000-09-29 Nokia Mobile Phones Ltd Toimistoviestintäjärjestelmä
US6192038B1 (en) 1995-10-18 2001-02-20 Mdiversity Inc. Method and apparatus for wireless communication employing aggregation for digital signals
JP3165447B2 (ja) * 1995-11-29 2001-05-14 株式会社エヌ・ティ・ティ・ドコモ ダイバーシチ受信装置および制御方法
IL120574A (en) * 1996-05-17 2002-09-12 Motorala Ltd Methods and devices for transmitter track weights
US6330244B1 (en) 1996-09-05 2001-12-11 Jerome Swartz System for digital radio communication between a wireless lan and a PBX
US6463295B1 (en) * 1996-10-11 2002-10-08 Arraycomm, Inc. Power control with signal quality estimation for smart antenna communication systems
US6128276A (en) * 1997-02-24 2000-10-03 Radix Wireless, Inc. Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays
US6128355A (en) * 1997-05-21 2000-10-03 Telefonaktiebolget Lm Ericsson Selective diversity combining
US6259891B1 (en) 1997-09-04 2001-07-10 Hughes Electronics Corporation Adapter and method for use in a portable communication signal receiver system
BR9812816A (pt) * 1997-09-15 2000-08-08 Adaptive Telecom Inc Processos para comunicação sem fio, e para eficientemente determinar na estação base um canal espacial da unidade móvel em um sistema de comunicação sem fio, e, estação base de cdma
US6377812B1 (en) * 1997-11-20 2002-04-23 University Of Maryland Combined power control and space-time diversity in mobile cellular communications
GB2349045A (en) * 1999-04-16 2000-10-18 Fujitsu Ltd Base station transmission beam pattern forming; interference reduction
EP1179230B1 (de) * 1999-05-19 2004-07-28 Nokia Corporation Sende-diversity verfahren und system
JP2001230709A (ja) * 2000-02-17 2001-08-24 Nec Shizuoka Ltd ダイバーシチ受信装置
WO2002007342A1 (fr) * 2000-07-14 2002-01-24 Sanyo Electric Co., Ltd. Terminal de communication mobile, procede de communication et programme associe
KR100493152B1 (ko) * 2000-07-21 2005-06-02 삼성전자주식회사 이동 통신 시스템에서의 전송 안테나 다이버시티 방법 및이를 위한 기지국 장치 및 이동국 장치
WO2002032000A1 (en) * 2000-10-11 2002-04-18 Airnet Communications Corporation Method and apparatus employing a remote wireless repeater for calibrating a wireless base station having an adaptive antenna array
US6771706B2 (en) * 2001-03-23 2004-08-03 Qualcomm Incorporated Method and apparatus for utilizing channel state information in a wireless communication system
US6611231B2 (en) * 2001-04-27 2003-08-26 Vivato, Inc. Wireless packet switched communication systems and networks using adaptively steered antenna arrays
US6785341B2 (en) * 2001-05-11 2004-08-31 Qualcomm Incorporated Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information
US6907272B2 (en) * 2002-07-30 2005-06-14 UNIVERSITé LAVAL Array receiver with subarray selection

Also Published As

Publication number Publication date
KR200331916Y1 (ko) 2003-10-30
KR20040014326A (ko) 2004-02-14
TW200723905A (en) 2007-06-16
TW200412743A (en) 2004-07-16
US7181176B2 (en) 2007-02-20
DE20312161U1 (de) 2003-12-11
KR20040014373A (ko) 2004-02-14
EP1527634A1 (de) 2005-05-04
TWI252644B (en) 2006-04-01
AU2003261376A1 (en) 2004-02-25
EP1527634A4 (de) 2010-08-25
TWM240732U (en) 2004-08-11
CN2686249Y (zh) 2005-03-16
AR040815A1 (es) 2005-04-20
TW200509707A (en) 2005-03-01
US20040097200A1 (en) 2004-05-20
TWI334739B (en) 2010-12-11
WO2004016006A1 (en) 2004-02-19
TWI339034B (en) 2011-03-11

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Legal Events

Date Code Title Description
PF Patent in force
PEU Short-term patents expired

Effective date: 20110806