SG90101A1 - Adaptive antenna directivity control method and system therefor - Google Patents

Adaptive antenna directivity control method and system therefor

Info

Publication number
SG90101A1
SG90101A1 SG200001032A SG200001032A SG90101A1 SG 90101 A1 SG90101 A1 SG 90101A1 SG 200001032 A SG200001032 A SG 200001032A SG 200001032 A SG200001032 A SG 200001032A SG 90101 A1 SG90101 A1 SG 90101A1
Authority
SG
Singapore
Prior art keywords
control method
directivity control
adaptive antenna
system therefor
antenna directivity
Prior art date
Application number
SG200001032A
Other languages
English (en)
Inventor
Takai Kenichi
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Publication of SG90101A1 publication Critical patent/SG90101A1/en

Links

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)
SG200001032A 1999-02-22 2000-02-21 Adaptive antenna directivity control method and system therefor SG90101A1 (en)

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 (1)

Publication Number Publication Date
SG90101A1 true SG90101A1 (en) 2002-07-23

Family

ID=12656985

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200001032A SG90101A1 (en) 1999-02-22 2000-02-21 Adaptive antenna directivity control method and system therefor

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
WO2003063526A1 (fr) * 2002-01-18 2003-07-31 Fujitsu Limited Procede et dispositif pour commander la retroaction dans la diversite de transmission en boucle fermee
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
US9426712B2 (en) 2006-03-13 2016-08-23 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
US8355723B2 (en) * 2008-06-06 2013-01-15 Ntt Docomo, Inc. Mobile communication method and exchange station
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
WO2012109016A2 (en) * 2011-02-09 2012-08-16 Raytheon Company Adaptive electronically steerable array (aesa) system for multi-band and multi-aperture operation and method for maintaining data links with one or more stations in different frequency bands
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
US9491637B2 (en) 2013-03-15 2016-11-08 Elwha Llc Portable wireless node auxiliary relay
US9793596B2 (en) * 2013-03-15 2017-10-17 Elwha Llc Facilitating wireless communication in conjunction with orientation position
US9608862B2 (en) 2013-03-15 2017-03-28 Elwha Llc Frequency accommodation
US9681311B2 (en) 2013-03-15 2017-06-13 Elwha Llc Portable wireless node local cooperation
WO2015004895A1 (ja) * 2013-07-10 2015-01-15 日本電気株式会社 無線通信システム、基地局および制御方法
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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WO1996000484A1 (en) * 1994-06-23 1996-01-04 Telefonaktiebolaget Lm Ericsson Intra-cell handover with antenna arrays
AU717667B2 (en) * 1995-09-26 2000-03-30 Societe Anonyme Dite Alcatel Cit Cellular mobile radio system and base transceiver station and base station controller therefor

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US5164958A (en) * 1991-05-22 1992-11-17 Cylink Corporation Spread spectrum cellular handoff method
US5515378A (en) 1991-12-12 1996-05-07 Arraycomm, Inc. Spatial division multiple access wireless communication systems
FI91345C (fi) 1992-06-24 1994-06-10 Nokia Mobile Phones Ltd Menetelmä kanavanvaihdon tehostamiseksi
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
US5548813A (en) * 1994-03-24 1996-08-20 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
FI105515B (fi) * 1995-05-24 2000-08-31 Nokia Networks Oy Menetelmä kanavanvaihdon nopeuttamiseksi sekä solukkoradiojärjestelmä
DE19524927A1 (de) 1995-07-08 1997-01-09 Sel Alcatel Ag Zielführung eines Teilnehmers innerhalb eines SDMA-Mobilfunknetzes
TW383527B (en) 1995-11-09 2000-03-01 British Tech Group Enhanced detectionn of multipled data transmissions
DE19543321B4 (de) 1995-11-21 2006-11-16 Diehl Stiftung & Co.Kg Verfahren und Einrichtung zum drahtlosen Austausch von Informationen zwischen Stationen
US5926470A (en) * 1996-05-22 1999-07-20 Qualcomm Incorporated Method and apparatus for providing diversity in hard handoff for a CDMA system
US5917811A (en) * 1996-05-22 1999-06-29 Qualcomm Incorporated Method and apparatus for measurement directed hard handoff in a CDMA system
JP3204111B2 (ja) 1996-08-28 2001-09-04 松下電器産業株式会社 指向性制御アンテナ装置
US5978365A (en) * 1998-07-07 1999-11-02 Orbital Sciences Corporation Communications system handoff operation combining turbo coding and soft handoff techniques
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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000484A1 (en) * 1994-06-23 1996-01-04 Telefonaktiebolaget Lm Ericsson Intra-cell handover with antenna arrays
AU717667B2 (en) * 1995-09-26 2000-03-30 Societe Anonyme Dite Alcatel Cit Cellular mobile radio system and base transceiver station and base station controller therefor

Also Published As

Publication number Publication date
CN1264965A (zh) 2000-08-30
CN1188964C (zh) 2005-02-09
KR100332168B1 (ko) 2002-04-10
US6571097B1 (en) 2003-05-27
DE10007998B4 (de) 2005-10-20
KR20000062583A (ko) 2000-10-25
JP2000244386A (ja) 2000-09-08
DE10007998A1 (de) 2000-09-21
BR0007363A (pt) 2001-08-07
JP3001570B1 (ja) 2000-01-24

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