DE69809293D1 - Ein verbessertes umschaltsystem für schwundmindernde antennen für tdma-basierte telefone - Google Patents

Ein verbessertes umschaltsystem für schwundmindernde antennen für tdma-basierte telefone

Info

Publication number
DE69809293D1
DE69809293D1 DE69809293T DE69809293T DE69809293D1 DE 69809293 D1 DE69809293 D1 DE 69809293D1 DE 69809293 T DE69809293 T DE 69809293T DE 69809293 T DE69809293 T DE 69809293T DE 69809293 D1 DE69809293 D1 DE 69809293D1
Authority
DE
Germany
Prior art keywords
tdma
aerating system
improved switch
reducing antenna
based telephones
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 - Lifetime
Application number
DE69809293T
Other languages
English (en)
Inventor
Qun Shen
Michael Lenzo
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.)
Ericsson Inc
Original Assignee
Ericsson Inc
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 Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of DE69809293D1 publication Critical patent/DE69809293D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—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 antenna selection
    • H04B7/0805—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 antenna selection with single receiver and antenna switching
    • H04B7/0808—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 antenna selection with single receiver and antenna switching comparing all antennas before reception
    • H04B7/0811—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 antenna selection with single receiver and antenna switching comparing all antennas before reception during preamble or gap period
DE69809293T 1997-12-30 1998-12-23 Ein verbessertes umschaltsystem für schwundmindernde antennen für tdma-basierte telefone Expired - Lifetime DE69809293D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/000,593 US6483884B1 (en) 1997-12-30 1997-12-30 Antenna diversity switching system for TDMA-based telephones
PCT/US1998/027617 WO1999034535A1 (en) 1997-12-30 1998-12-23 An improved antenna diversity switching system for tdma-based telephones

Publications (1)

Publication Number Publication Date
DE69809293D1 true DE69809293D1 (de) 2002-12-12

Family

ID=21692173

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69809293T Expired - Lifetime DE69809293D1 (de) 1997-12-30 1998-12-23 Ein verbessertes umschaltsystem für schwundmindernde antennen für tdma-basierte telefone

Country Status (5)

Country Link
US (1) US6483884B1 (de)
EP (1) EP1044518B1 (de)
AU (1) AU2095799A (de)
DE (1) DE69809293D1 (de)
WO (1) WO1999034535A1 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1042874B1 (de) * 1997-12-30 2002-11-20 Ericsson Inc. Vereinheitlichtes antennendiversityschaltungssystem für tdma-telefone
JP3323809B2 (ja) * 1998-06-19 2002-09-09 松下電器産業株式会社 時分割多重無線通信方式の受信電界強度測定装置
JP3039637B2 (ja) * 1998-07-10 2000-05-08 日本電気株式会社 無線基地局装置とその送信電力制御方式
FI982763A (fi) * 1998-12-21 2000-06-22 Nokia Networks Oy Tiedonsiirtomenetelmä ja radiojärjestelmä
DE50001058D1 (de) * 1999-11-30 2003-02-13 Fraunhofer Ges Forschung Dect-sende/empfangs-endgerät und verfahren zum kommunizieren zwischen einem dect-sende/empfangs-endgerät und einer dect-basisstation
US6654384B1 (en) * 1999-12-30 2003-11-25 Aperto Networks, Inc. Integrated self-optimizing multi-parameter and multi-variable point to multipoint communication system
FI20001513A (fi) * 2000-06-26 2001-12-27 Nokia Networks Oy Menetelmä tiedonsiirron laadun parantamiseksi
US6636488B1 (en) 2000-10-11 2003-10-21 Aperto Networks, Inc. Automatic retransmission and error recovery for packet oriented point-to-multipoint communication
US6917820B2 (en) * 2001-01-26 2005-07-12 Stanford University Method and apparatus for selection and use of optimal antennas in wireless systems
US7274759B2 (en) * 2001-12-21 2007-09-25 Koninklijke Philips Electronics N.V. Antenna switching based on a preamble MSE metric
JP2004201188A (ja) * 2002-12-20 2004-07-15 Nec Saitama Ltd 携帯電話アンテナ切替回路
CA2421578A1 (en) * 2003-03-10 2004-09-10 Anthony Gerkis System and method for selecting and reselecting antenna direction at a transceiver
JP4193589B2 (ja) * 2003-05-28 2008-12-10 日本電気株式会社 携帯通信端末及びそのアンテナ切替方法
US7359692B2 (en) * 2003-06-30 2008-04-15 Zarbana Digital Fund, Llc Method of and device for antennae diversity switching
US7248835B2 (en) * 2003-12-19 2007-07-24 Benq Corporation Method for automatically switching a profile of a mobile phone
KR20050075477A (ko) * 2004-01-15 2005-07-21 삼성전자주식회사 Ｍｉｍｏ 스테이션 간에 통신하는 방법
JP4200939B2 (ja) * 2004-05-19 2008-12-24 ソニー株式会社 無線通信システムと受信装置と受信方法
US20070071149A1 (en) 2005-09-27 2007-03-29 Linbo Li Maximum ratio combining in broadcast OFDM systems based on multiple receive antennas
US7539517B2 (en) * 2006-01-23 2009-05-26 Sony Corporation Method of selecting one of dual antennas
DE102011075886B3 (de) * 2011-05-16 2012-06-21 Continental Automotive Gmbh Verfahren und Vorrichtung zur Zugangs- und/oder Startverifizierung.
KR102117028B1 (ko) 2014-10-07 2020-06-09 삼성전자주식회사 무선 통신 시스템에서 페어링 방법 및 장치
US9792744B2 (en) 2015-06-01 2017-10-17 Schlage Lock Company Llc Antenna diversity implementation for wireless locks
US9742481B1 (en) * 2016-09-16 2017-08-22 Amazon Technologies, Inc. Antenna switching
US11010996B2 (en) * 2018-10-12 2021-05-18 Denso International America, Inc. Passive entry/passive start systems using I and Q data for detecting range extender type relay station attacks

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2147765C (en) * 1992-10-26 2003-04-08 Christoph Euscher Method and arrangement for antenna selection control in a radio receiver
US5446922A (en) 1992-12-21 1995-08-29 Motorola, Inc. Method and apparatus for switched diversity reception of a radio signal
US5561673A (en) * 1993-04-16 1996-10-01 Matsushita Electric Industrial Co., Ltd. Antenna switched diversity reciever
EP0721715B1 (de) * 1993-09-30 2001-11-28 Conexant Systems, Inc. Basisstation für ein digitales schnurloses telefon mit mehrfachantennenanordnung
JPH07326977A (ja) 1994-02-04 1995-12-12 Advanced Micro Devices Inc 通信回路
JP3293997B2 (ja) 1994-04-08 2002-06-17 三菱電機株式会社 移動体デジタル情報受信機
SE9402493L (sv) 1994-07-15 1996-01-16 Ericsson Telefon Ab L M Metod i en diversitetsmottagare
US5742509A (en) * 1995-04-11 1998-04-21 Trimble Navigation Limited Personal tracking system integrated with base station
EP0755131A3 (de) * 1995-07-17 1999-05-06 Hagenuk Gmbh Vorrichtung zur Steuerung von Antennen
US6032033A (en) * 1996-12-03 2000-02-29 Nortel Networks Corporation Preamble based selection diversity in a time division multiple access radio system using digital demodulation
US5960046A (en) * 1996-12-03 1999-09-28 Northern Telecom Limited Preamble based selection diversity in a time division multiple access radio system
US5952963A (en) * 1997-12-30 1999-09-14 Ericsson Inc. Advanced antenna diversity mechanism

Also Published As

Publication number Publication date
EP1044518A1 (de) 2000-10-18
WO1999034535A1 (en) 1999-07-08
US6483884B1 (en) 2002-11-19
AU2095799A (en) 1999-07-19
EP1044518B1 (de) 2002-11-06

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Legal Events

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