FI19991940A - Lähetysdiversiteetti - Google Patents

Lähetysdiversiteetti

Info

Publication number
FI19991940A
FI19991940A FI991940A FI19991940A FI19991940A FI 19991940 A FI19991940 A FI 19991940A FI 991940 A FI991940 A FI 991940A FI 19991940 A FI19991940 A FI 19991940A FI 19991940 A FI19991940 A FI 19991940A
Authority
FI
Finland
Prior art keywords
decision
power control
transmission diversity
base transceiver
mobile station
Prior art date
Application number
FI991940A
Other languages
English (en)
Swedish (sv)
Inventor
Risto Wichman
Wang Yan
Original Assignee
Nokia Networks Oy
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 Nokia Networks Oy filed Critical Nokia Networks Oy
Priority to FI991940A priority Critical patent/FI19991940A/fi
Priority to CN00801929A priority patent/CN1321371A/zh
Priority to AU70043/00A priority patent/AU7004300A/en
Priority to AT00958561T priority patent/ATE424061T1/de
Priority to DE60041631T priority patent/DE60041631D1/de
Priority to PCT/FI2000/000760 priority patent/WO2001020810A1/en
Priority to EP00958561A priority patent/EP1129528B1/en
Publication of FI19991940A publication Critical patent/FI19991940A/fi
Priority to US09/842,490 priority patent/US6915116B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/226—TPC being performed according to specific parameters taking into account previous information or commands using past references to control power, e.g. look-up-table
    • 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
    • H04B7/0602—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 antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H04B7/061—Antenna selection according to transmission parameters using feedback from receiving side
    • 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
    • H04B7/0623—Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Optical Communication System (AREA)
  • Radio Transmission System (AREA)
FI991940A 1999-09-10 1999-09-10 Lähetysdiversiteetti FI19991940A (fi)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI991940A FI19991940A (fi) 1999-09-10 1999-09-10 Lähetysdiversiteetti
CN00801929A CN1321371A (zh) 1999-09-10 2000-09-07 发射分集
AU70043/00A AU7004300A (en) 1999-09-10 2000-09-07 Transmission diversity
AT00958561T ATE424061T1 (de) 1999-09-10 2000-09-07 Übertragungsdiversität
DE60041631T DE60041631D1 (de) 1999-09-10 2000-09-07 Übertragungsdiversität
PCT/FI2000/000760 WO2001020810A1 (en) 1999-09-10 2000-09-07 Transmission diversity
EP00958561A EP1129528B1 (en) 1999-09-10 2000-09-07 Transmission diversity
US09/842,490 US6915116B2 (en) 1999-09-10 2001-04-25 Transmission diversity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI991940A FI19991940A (fi) 1999-09-10 1999-09-10 Lähetysdiversiteetti

Publications (1)

Publication Number Publication Date
FI19991940A true FI19991940A (fi) 2001-03-10

Family

ID=8555274

Family Applications (1)

Application Number Title Priority Date Filing Date
FI991940A FI19991940A (fi) 1999-09-10 1999-09-10 Lähetysdiversiteetti

Country Status (8)

Country Link
US (1) US6915116B2 (fi)
EP (1) EP1129528B1 (fi)
CN (1) CN1321371A (fi)
AT (1) ATE424061T1 (fi)
AU (1) AU7004300A (fi)
DE (1) DE60041631D1 (fi)
FI (1) FI19991940A (fi)
WO (1) WO2001020810A1 (fi)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002271266A (ja) * 2001-03-09 2002-09-20 Nec Corp Ｃｄｍａ基地局および送信ダイバーシチ制御方法
US20020181407A1 (en) * 2001-03-28 2002-12-05 Anders Khullar Link quality control by using time dispersion information
JP4252802B2 (ja) * 2001-05-02 2009-04-08 富士通株式会社 送信ダイバーシチシステム
US6622024B2 (en) * 2001-09-20 2003-09-16 Interdigital Technology Corporation Outer loop transmit power control using channel-adaptive processing
US8090381B2 (en) * 2001-11-20 2012-01-03 At&T Intellectual Property Ii, L.P. Protocol assisted switched diversity of antennas
KR100547882B1 (ko) * 2002-02-26 2006-02-01 삼성전자주식회사 안테나 선택 다이버시티를 지원하는 이동통신시스템에서순방향 채널 상태 정보를 송수신하는 방법 및 장치
US7062232B2 (en) * 2002-12-11 2006-06-13 Qualcomm Incorporated Switched antenna transmit diversity
US7236539B2 (en) * 2002-12-17 2007-06-26 Mediatek Inc. Apparatus and method for estimation of frequency offset in wireless communications
ATE410877T1 (de) * 2003-02-04 2008-10-15 Lg Electronics Inc Aufwärtsstreckensendeleistungssteuerverfahren
US8442058B2 (en) * 2003-04-30 2013-05-14 Hewlett-Packard Development Company, L.P. Locating stations between protocols
US7643443B2 (en) * 2003-10-03 2010-01-05 Nvidia Corporation Systems and methods for autonomously and dynamically optimizing transmission power in a wireless network
KR101055730B1 (ko) * 2004-08-11 2011-08-11 엘지전자 주식회사 상향링크 전송 전력 스케줄링 방법
US8199735B2 (en) 2006-12-12 2012-06-12 Google Inc. Method, system and apparatus for the control of transmit diversity
US8018983B2 (en) 2007-01-09 2011-09-13 Sky Cross, Inc. Tunable diversity antenna for use with frequency hopping communications protocol
US8498247B2 (en) 2008-03-25 2013-07-30 Qualcomm Incorporated Adaptively reacting to resource utilization messages including channel gain indication
US8599748B2 (en) * 2008-03-25 2013-12-03 Qualcomm Incorporated Adapting decision parameter for reacting to resource utilization messages
CN101860948B (zh) 2009-04-13 2014-07-30 华为技术有限公司 功耗调节的方法、设备及系统
WO2010138735A1 (en) 2009-05-27 2010-12-02 At&T Intellectual Property I, L.P. Transmit antenna subset selection for retransmission
US9048913B2 (en) * 2010-07-06 2015-06-02 Google Inc. Method and apparatus for adaptive control of transmit diversity to provide operating power reduction

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9200915D0 (sv) 1992-03-24 1992-03-24 Ericsson Telefon Ab L M Methods in a cellular mobile radio communincation system
JPH07245577A (ja) * 1994-03-04 1995-09-19 Nippon Telegr & Teleph Corp <Ntt> ダイバーシチ通信装置
US5628052A (en) * 1994-09-12 1997-05-06 Lucent Technologies Inc. Wireless communication system using distributed switched antennas
JP3250708B2 (ja) * 1995-04-27 2002-01-28 シャープ株式会社 無線通信装置
JP2751869B2 (ja) * 1995-04-28 1998-05-18 日本電気株式会社 送信ダイバシティ方式
US6104933A (en) 1997-06-23 2000-08-15 Telefonaktiebolaget Lm Ericsson Method and apparatus for control of base stations in macro diversity radio systems
US6131016A (en) * 1997-08-27 2000-10-10 At&T Corp Method and apparatus for enhancing communication reception at a wireless communication terminal
SE511365C2 (sv) * 1998-01-23 1999-09-20 Ericsson Telefon Ab L M Antennomkopplingsdiversitet
SE521005C2 (sv) 1998-01-30 2003-09-23 Ericsson Telefon Ab L M En metod och ett system för att använda diversitetsinformation extraherande i upplänken vid nedlänkstransmission
GB9804891D0 (en) 1998-03-06 1998-04-29 Lucent Tech Network Sys Gmbh Time division multiple access communication system
JP2002026796A (ja) * 1998-04-07 2002-01-25 Matsushita Electric Ind Co Ltd 無線通信装置及び無線通信システム
KR100330245B1 (ko) 1998-06-13 2002-08-17 삼성전자 주식회사 송신다이버시티를적용한이동통신시스템의순방향링크전력제어장치및방법

Also Published As

Publication number Publication date
EP1129528A1 (en) 2001-09-05
US20010024964A1 (en) 2001-09-27
ATE424061T1 (de) 2009-03-15
EP1129528B1 (en) 2009-02-25
DE60041631D1 (de) 2009-04-09
CN1321371A (zh) 2001-11-07
US6915116B2 (en) 2005-07-05
AU7004300A (en) 2001-04-17
WO2001020810A1 (en) 2001-03-22

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