DE10007998B4 - Adaptives Antennenrichtwirkungssteuerungsverfahren und System dafür - Google Patents

Adaptives Antennenrichtwirkungssteuerungsverfahren und System dafür Download PDF

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Publication number
DE10007998B4
DE10007998B4 DE10007998A DE10007998A DE10007998B4 DE 10007998 B4 DE10007998 B4 DE 10007998B4 DE 10007998 A DE10007998 A DE 10007998A DE 10007998 A DE10007998 A DE 10007998A DE 10007998 B4 DE10007998 B4 DE 10007998B4
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DE
Germany
Prior art keywords
control method
directivity control
adaptive antenna
system therefor
antenna directivity
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE10007998A
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English (en)
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DE10007998A1 (de
Inventor
Kenichi Takai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE10007998A1 publication Critical patent/DE10007998A1/de
Application granted granted Critical
Publication of DE10007998B4 publication Critical patent/DE10007998B4/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/04—Traffic adaptive resource partitioning
    • 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
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Transmission System (AREA)
DE10007998A 1999-02-22 2000-02-22 Adaptives Antennenrichtwirkungssteuerungsverfahren und System dafür Expired - Fee Related DE10007998B4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11043189A JP3001570B1 (ja) 1999-02-22 1999-02-22 適応アンテナ指向性制御方法及びそのシステム

Publications (2)

Publication Number Publication Date
DE10007998A1 DE10007998A1 (de) 2000-09-21
DE10007998B4 true DE10007998B4 (de) 2005-10-20

Family

ID=12656985

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10007998A Expired - Fee Related DE10007998B4 (de) 1999-02-22 2000-02-22 Adaptives Antennenrichtwirkungssteuerungsverfahren und System dafür

Country Status (7)

Country Link
US (1) US6571097B1 (de)
JP (1) JP3001570B1 (de)
KR (1) KR100332168B1 (de)
CN (1) CN1188964C (de)
BR (1) BR0007363A (de)
DE (1) DE10007998B4 (de)
SG (1) SG90101A1 (de)

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US20030016635A1 (en) * 2001-07-10 2003-01-23 Andrews Michael R. Method and apparatus for reducing co-channel interference in a wireless downlink
US7065359B2 (en) * 2001-10-09 2006-06-20 Lucent Technologies Inc. System and method for switching between base stations in a wireless communications system
TW595857U (en) 2001-11-29 2004-06-21 Us 091219345
EP1469686B1 (de) 2002-01-18 2013-05-29 Fujitsu Limited Verfahren und vorrichtung zur rückkopplungssteuerung bei übertragungs-diversity mit geschlossener schleife
SE0201102D0 (sv) * 2002-04-10 2002-04-10 Ericsson Telefon Ab L M Method in a communication network
CA2421578A1 (en) * 2003-03-10 2004-09-10 Anthony Gerkis System and method for selecting and reselecting antenna direction at a transceiver
JP4247019B2 (ja) * 2003-03-24 2009-04-02 京セラ株式会社 無線通信機
US7308286B2 (en) 2003-11-20 2007-12-11 Telefonaktiebolaget Lm Ericsson (Publ) Multi-dimensional joint searcher and channel estimators
JP4559270B2 (ja) * 2005-03-22 2010-10-06 株式会社日立製作所 無線通信システム
US7945263B2 (en) * 2005-11-29 2011-05-17 Treble Investments Limited Liability Company Mobile station handover for base stations with adaptive antenna system
WO2007105999A1 (en) 2006-03-13 2007-09-20 Telefonaktiebolaget Lm Ericsson (Publ) Advanced handover for adaptive antennas
JP4806307B2 (ja) * 2006-07-28 2011-11-02 京セラ株式会社 無線通信方法、無線基地局、無線通信端末及び基地局制御装置
JP4748106B2 (ja) * 2007-05-24 2011-08-17 日本電気株式会社 アンテナビーム制御方法及びアンテナビーム制御装置並びに移動通信システム
KR101361829B1 (ko) * 2007-10-24 2014-02-12 삼성전자주식회사 동적 빔포밍 방식에 기반한 핸드오버 장치 및 방법
JP4928531B2 (ja) * 2008-01-10 2012-05-09 株式会社神戸製鋼所 無線通信端末，無線通信システム，無線通信制御方法
CN102057709B (zh) * 2008-06-06 2014-01-15 株式会社Ntt都科摩 移动通信方法以及交换站
JP5252079B2 (ja) * 2009-05-14 2013-07-31 日本電気株式会社 無線通信システム、無線基地局装置、パラメーター決定装置
EP2673656B1 (de) * 2011-02-09 2021-03-31 Raytheon Company System mit einer adaptiven elektronisch steuerbaren anordnung (aesa) für mehrfachbandbetrieb mit mehreren öffnungen und verfahren zur aufrechterhaltung von datenverbindungen mit einer oder mehreren stationen in unterschiedlichen frequenzbändern
US9645222B2 (en) 2011-08-08 2017-05-09 Trimble Navigation Limited Apparatus for direction finding of wireless signals
US9100974B2 (en) 2012-04-12 2015-08-04 Fidelity Comtech, Inc. System for continuously improving the performance of wireless networks with mobile users
US9648502B2 (en) 2012-08-15 2017-05-09 Trimble Navigation Limited System for tailoring wireless coverage to a geographic area
CN103887608B (zh) * 2012-12-19 2016-08-03 启碁科技股份有限公司 天线控制方法及天线装置
US9608862B2 (en) 2013-03-15 2017-03-28 Elwha Llc Frequency accommodation
US9491637B2 (en) 2013-03-15 2016-11-08 Elwha Llc Portable wireless node auxiliary relay
US9681311B2 (en) 2013-03-15 2017-06-13 Elwha Llc Portable wireless node local cooperation
US9793596B2 (en) * 2013-03-15 2017-10-17 Elwha Llc Facilitating wireless communication in conjunction with orientation position
US20160150516A1 (en) * 2013-07-10 2016-05-26 Nec Corporation Wireless communication system, base station, and control method
EP3579443A1 (de) * 2018-06-07 2019-12-11 Volkswagen Aktiengesellschaft Fahrzeug, vorrichtung, verfahren und computerprogramm zur kommunikation in mehreren mobilkommunikationssystemen
JP7027294B2 (ja) * 2018-10-29 2022-03-01 本田技研工業株式会社 通信システム、通信方法、及びプログラム
US20220053385A1 (en) * 2018-12-21 2022-02-17 Apple Inc. A method for enabling fast mobility with beamforming information

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WO1993012590A1 (en) * 1991-12-12 1993-06-24 Arraycomm, Incorporated Spatial division multiple access wireless communication systems
WO1995026116A1 (en) * 1994-03-24 1995-09-28 Ericsson Inc. Phased array cellular base station and associated methods for enhanced power efficiency
US5483668A (en) * 1992-06-24 1996-01-09 Nokia Mobile Phones Ltd. Method and apparatus providing handoff of a mobile station between base stations using parallel communication links established with different time slots
DE19518399A1 (de) * 1995-05-19 1996-11-21 Sel Alcatel Ag Prozessorgesteuerte Vorrichtung zur Verfolgung einer Mobilstation in einem SDMA-Mobilfunksystem
DE19524927A1 (de) * 1995-07-08 1997-01-09 Sel Alcatel Ag Zielführung eines Teilnehmers innerhalb eines SDMA-Mobilfunknetzes
DE19543321A1 (de) * 1995-11-21 1997-05-22 Diehl Gmbh & Co Verfahren und Einrichtung zum drahtlosen Austausch von Informationen zwischen Stationen
DE19737136A1 (de) * 1996-08-28 1998-03-12 Matsushita Electric Ind Co Ltd Antennenvorrichtung mit steuerbarer Richtwirkung

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DE4290393C2 (de) * 1991-02-22 1998-05-20 Motorola Inc Verfahren und Vorrichtung zum Verbessern der Signalqualität eines in einem Übertragungskanal eines zellularen Nachrichtenübertragungssystems übertragenen Signals
US5164958A (en) * 1991-05-22 1992-11-17 Cylink Corporation Spread spectrum cellular handoff method
US5432843A (en) * 1993-08-02 1995-07-11 Motorola Inc. Method of performing handoff in a cellular communication system
US6088590A (en) * 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
AU689908B2 (en) 1994-06-23 1998-04-09 Telefonaktiebolaget Lm Ericsson (Publ) Intra-cell handover with antenna arrays
FI105515B (fi) * 1995-05-24 2000-08-31 Nokia Networks Oy Menetelmä kanavanvaihdon nopeuttamiseksi sekä solukkoradiojärjestelmä
FR2739243B1 (fr) * 1995-09-26 1997-11-14 Alcatel Mobile Comm France Systeme cellulaire de radiocommunications mobiles, station de base et dispositif de controle de stations de base correspondants
TW383527B (en) 1995-11-09 2000-03-01 British Tech Group Enhanced detectionn of multipled data transmissions
US5917811A (en) * 1996-05-22 1999-06-29 Qualcomm Incorporated Method and apparatus for measurement directed hard handoff in a CDMA system
US5926470A (en) * 1996-05-22 1999-07-20 Qualcomm Incorporated Method and apparatus for providing diversity in hard handoff for a CDMA system
US5978365A (en) * 1998-07-07 1999-11-02 Orbital Sciences Corporation Communications system handoff operation combining turbo coding and soft handoff techniques
US6415149B1 (en) * 1998-11-24 2002-07-02 Nortel Networks Limited Method and apparatus for handoff in a cellular radio communications system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993012590A1 (en) * 1991-12-12 1993-06-24 Arraycomm, Incorporated Spatial division multiple access wireless communication systems
US5483668A (en) * 1992-06-24 1996-01-09 Nokia Mobile Phones Ltd. Method and apparatus providing handoff of a mobile station between base stations using parallel communication links established with different time slots
WO1995026116A1 (en) * 1994-03-24 1995-09-28 Ericsson Inc. Phased array cellular base station and associated methods for enhanced power efficiency
DE19518399A1 (de) * 1995-05-19 1996-11-21 Sel Alcatel Ag Prozessorgesteuerte Vorrichtung zur Verfolgung einer Mobilstation in einem SDMA-Mobilfunksystem
DE19524927A1 (de) * 1995-07-08 1997-01-09 Sel Alcatel Ag Zielführung eines Teilnehmers innerhalb eines SDMA-Mobilfunknetzes
DE19543321A1 (de) * 1995-11-21 1997-05-22 Diehl Gmbh & Co Verfahren und Einrichtung zum drahtlosen Austausch von Informationen zwischen Stationen
DE19737136A1 (de) * 1996-08-28 1998-03-12 Matsushita Electric Ind Co Ltd Antennenvorrichtung mit steuerbarer Richtwirkung

Also Published As

Publication number Publication date
KR100332168B1 (ko) 2002-04-10
US6571097B1 (en) 2003-05-27
KR20000062583A (ko) 2000-10-25
JP3001570B1 (ja) 2000-01-24
CN1264965A (zh) 2000-08-30
SG90101A1 (en) 2002-07-23
CN1188964C (zh) 2005-02-09
JP2000244386A (ja) 2000-09-08
DE10007998A1 (de) 2000-09-21
BR0007363A (pt) 2001-08-07

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8364 No opposition during term of opposition
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee