BR0007363A - Método e sistema de controle de diretividade de antena adaptativa - Google Patents
Método e sistema de controle de diretividade de antena adaptativaInfo
- Publication number
- BR0007363A BR0007363A BR0007363-6A BR0007363A BR0007363A BR 0007363 A BR0007363 A BR 0007363A BR 0007363 A BR0007363 A BR 0007363A BR 0007363 A BR0007363 A BR 0007363A
- Authority
- BR
- Brazil
- Prior art keywords
- directivity
- link
- mobile station
- hand
- station
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 5
- 230000003044 adaptive effect Effects 0.000 title abstract 4
- 230000000977 initiatory effect Effects 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
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)
Abstract
"MéTODO E SISTEMA DE CONTROLE DE DIRETIVIDADE DE ANTENA ADAPTATIVA". Método para controlar diretividade de antena adaptativa e sistema para o mesmo é capaz de reduzir interferência em up-link e down-link na iniciação de hand-off para melhorar qualidade de comunicação na iniciação de hand-off para acelerar o controle de diretividade resultando na melhora da capacidade de canal. No método para controlar diretividade de antena adaptativa, uma estação móvel e uma estação base, a ser conectada com a estação móvel por rádio através de up-link e down-link, sendo governadas por uma estação supervisora, os respectivos sinais de transmissão e recepção de uma pluralidade de elementos de antena são variados em fase e amplitude, para combinar em uma particular orientação e estabelecer uma diretividade por um padrão de radiação por combinação. O método inclui as etapas de: iniciação de hand-off gradual na estação móvel; obter informação de posição de instalação a partir de uma primeira estação base, conectada antes de hand-off, e informação de diretividade de um up-link da primeira estação base em relação à estação móvel; prever uma orientação da estação móvel a partir da própria estação por uma segunda estação base, a ser conectada por hand-off, com base na informação de diretividade do up-link; e determinar um parâmetro de controle de diretividade inicial do up-link correspondente a orientação obtida da estação móvel.
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 |
---|---|
BR0007363A true BR0007363A (pt) | 2001-08-07 |
Family
ID=12656985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0007363-6A BR0007363A (pt) | 1999-02-22 | 2000-02-18 | Método e sistema de controle de diretividade de antena adaptativa |
Country Status (7)
Country | Link |
---|---|
US (1) | US6571097B1 (pt) |
JP (1) | JP3001570B1 (pt) |
KR (1) | KR100332168B1 (pt) |
CN (1) | CN1188964C (pt) |
BR (1) | BR0007363A (pt) |
DE (1) | DE10007998B4 (pt) |
SG (1) | SG90101A1 (pt) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002232341A (ja) * | 2001-02-02 | 2002-08-16 | Hitachi Ltd | 無線通信システム、スマートアンテナを有する無線基地局装置及び無線基地局装置と無線で通信する無線端末 |
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 (en) * | 2002-01-18 | 2013-05-29 | Fujitsu Limited | Method and apparatus for controlling feedback in closed loop transmission diversity |
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 |
WO2009148167A1 (ja) * | 2008-06-06 | 2009-12-10 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信方法及び交換局 |
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 (en) * | 2011-02-09 | 2021-03-31 | 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 |
US9681311B2 (en) | 2013-03-15 | 2017-06-13 | Elwha Llc | Portable wireless node local cooperation |
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 |
US9793596B2 (en) * | 2013-03-15 | 2017-10-17 | Elwha Llc | Facilitating wireless communication in conjunction with orientation position |
JPWO2015004895A1 (ja) * | 2013-07-10 | 2017-03-02 | 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 (en) * | 2018-06-07 | 2019-12-11 | Volkswagen Aktiengesellschaft | Vehicle, apparatus, method and computer program for communicating in multiple mobile communication systems |
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 |
Family Cites Families (19)
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GB2270236B (en) * | 1991-02-22 | 1995-06-21 | Motorola Inc | Method of operating a communications system |
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 |
RU2150788C1 (ru) | 1994-06-23 | 2000-06-10 | Телефонактиеболагет Л М Эрикссон | Способ переключения каналов связи в ячейке сотовой системы связи с адаптивными антенными решетками |
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 |
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 |
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 |
US6415149B1 (en) * | 1998-11-24 | 2002-07-02 | Nortel Networks Limited | Method and apparatus for handoff in a cellular radio communications system |
-
1999
- 1999-02-22 JP JP11043189A patent/JP3001570B1/ja not_active Expired - Fee Related
-
2000
- 2000-02-18 BR BR0007363-6A patent/BR0007363A/pt not_active IP Right Cessation
- 2000-02-18 US US09/506,694 patent/US6571097B1/en not_active Expired - Lifetime
- 2000-02-21 SG SG200001032A patent/SG90101A1/en unknown
- 2000-02-22 CN CNB001027859A patent/CN1188964C/zh not_active Expired - Fee Related
- 2000-02-22 KR KR1020000008375A patent/KR100332168B1/ko not_active IP Right Cessation
- 2000-02-22 DE DE10007998A patent/DE10007998B4/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6571097B1 (en) | 2003-05-27 |
CN1264965A (zh) | 2000-08-30 |
CN1188964C (zh) | 2005-02-09 |
JP2000244386A (ja) | 2000-09-08 |
KR20000062583A (ko) | 2000-10-25 |
KR100332168B1 (ko) | 2002-04-10 |
SG90101A1 (en) | 2002-07-23 |
DE10007998B4 (de) | 2005-10-20 |
JP3001570B1 (ja) | 2000-01-24 |
DE10007998A1 (de) | 2000-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 5A, 6A, 7A E 8A ANUIDADES. |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1925 DE 27/11/2007. |
|
B15K | Others concerning applications: alteration of classification |
Ipc: H04W 16/04 (2009.01), H04B 7/08 (2006.01), H04W 36 |