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IL125118A0 - Method and apparatus for providing antenna diversity in a portable radiotelephone - Google Patents

Method and apparatus for providing antenna diversity in a portable radiotelephone

Info

Publication number
IL125118A0
IL125118A0 IL12511896A IL12511896A IL125118A0 IL 125118 A0 IL125118 A0 IL 125118A0 IL 12511896 A IL12511896 A IL 12511896A IL 12511896 A IL12511896 A IL 12511896A IL 125118 A0 IL125118 A0 IL 125118A0
Authority
IL
Israel
Prior art keywords
antenna diversity
portable radiotelephone
providing antenna
providing
radiotelephone
Prior art date
Application number
IL12511896A
Other languages
English (en)
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of IL125118A0 publication Critical patent/IL125118A0/xx

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
    • H04B7/0891—Space-time diversity
    • H04B7/0894—Space-time diversity using different delays between antennas
    • 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
    • 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
    • H04B7/0667—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 delayed versions of same signal
    • H04B7/0671—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 delayed versions of same signal using different delays between antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
IL12511896A 1995-12-28 1996-12-23 Method and apparatus for providing antenna diversity in a portable radiotelephone IL125118A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57989595A 1995-12-28 1995-12-28
PCT/US1996/020656 WO1997024818A1 (en) 1995-12-28 1996-12-23 Method and apparatus for providing antenna diversity in a portable radiotelephone

Publications (1)

Publication Number Publication Date
IL125118A0 true IL125118A0 (en) 1999-01-26

Family

ID=24318787

Family Applications (1)

Application Number Title Priority Date Filing Date
IL12511896A IL125118A0 (en) 1995-12-28 1996-12-23 Method and apparatus for providing antenna diversity in a portable radiotelephone

Country Status (8)

Country Link
EP (1) EP0870370A1 (zh)
JP (1) JP2000503184A (zh)
KR (1) KR19990076867A (zh)
CN (1) CN1208521A (zh)
AU (1) AU1469397A (zh)
BR (1) BR9612319A (zh)
IL (1) IL125118A0 (zh)
WO (1) WO1997024818A1 (zh)

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US5787344A (en) 1994-06-28 1998-07-28 Scheinert; Stefan Arrangements of base transceiver stations of an area-covering network
US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
JPH10247869A (ja) 1997-03-04 1998-09-14 Nec Corp ダイバーシティ回路
US5926503A (en) * 1997-08-27 1999-07-20 Motorola, Inc. DS-CDMA receiver and forward link diversity method
AU1185299A (en) * 1997-09-29 1999-04-23 Qualcomm Incorporated Using multiple antennas to mitigate specular reflection
US6259687B1 (en) 1997-10-31 2001-07-10 Interdigital Technology Corporation Communication station with multiple antennas
US6125109A (en) * 1998-02-24 2000-09-26 Repeater Technologies Delay combiner system for CDMA repeaters and low noise amplifiers
JP3967452B2 (ja) * 1998-03-13 2007-08-29 株式会社東芝 スペクトラム拡散無線伝送受信装置
KR19990088235A (ko) * 1998-05-13 1999-12-27 윤종용 이동통신시스템의시간스위칭송신다이버시티장치및그제어방법
DE19850279B4 (de) * 1998-10-30 2005-12-22 Robert Bosch Gmbh Verfahren für die Übertragung von Signalen zwischen einer ersten Funkstation und einer zweiten Funkstation und Funkstation
WO2002011301A2 (en) * 2000-08-01 2002-02-07 Repeater Technologies, Inc. Improved delay combiner system for cdma repeaters and low noise amplifiers
GB2371716A (en) * 2001-01-29 2002-07-31 Ubinetics Ltd A radio receiver and method of searching or acquiring signals
US8249187B2 (en) 2002-05-09 2012-08-21 Google Inc. System, method and apparatus for mobile transmit diversity using symmetric phase difference
CN1545770B (zh) 2001-05-31 2013-03-06 马格诺利亚宽带股份有限公司 通信方法和设备以及用于改进通信设备的系统性能的方法
US7058145B2 (en) 2001-06-04 2006-06-06 Qualcomm, Inc. Diversity gain with a compact antenna
KR20030014894A (ko) * 2001-08-13 2003-02-20 주식회사 네오텔레콤 시간 및 공간 다이버시티 기능을 적용한 무선 이동 통신망중계기용 다이버시티 송수신 장치
JP2003087023A (ja) * 2001-09-13 2003-03-20 Toshiba Corp 無線通信アンテナを内蔵した携帯型情報機器
US7024163B1 (en) 2001-09-28 2006-04-04 Arraycomm Llc Method and apparatus for adjusting feedback of a remote unit
US6965774B1 (en) 2001-09-28 2005-11-15 Arraycomm, Inc. Channel assignments in a wireless communication system having spatial channels including enhancements in anticipation of new subscriber requests
US6965788B1 (en) 2001-09-28 2005-11-15 Arraycomm, Inc. Method and apparatus for providing spatial processing in a remote unit
US7505741B2 (en) 2002-11-01 2009-03-17 Magnolia Broadband Inc. Processing diversity signals using a delay
JP3841411B2 (ja) 2003-01-17 2006-11-01 松下電器産業株式会社 ダイバシティ受信装置およびダイバシティ受信方法
US7418067B1 (en) 2003-04-14 2008-08-26 Magnolia Broadband Inc. Processing diversity signals at a mobile device using phase adjustments
KR100631668B1 (ko) 2003-05-13 2006-10-09 엘지전자 주식회사 고속 데이터 전송 방식 이동 통신 시스템에서의 이동국수신 다이버시티 장치 및 방법
US7539507B2 (en) 2003-11-21 2009-05-26 Qualcomm Incorporated Peer-to-peer communications
US7430430B2 (en) 2003-12-16 2008-09-30 Magnolia Broadband Inc. Adjusting a signal at a diversity system
US7272359B2 (en) 2004-01-26 2007-09-18 Magnolia Broadband Inc. Communicating signals according to a quality indicator using multiple antenna elements
US7558591B2 (en) 2004-10-12 2009-07-07 Magnolia Broadband Inc. Determining a power control group boundary of a power control group
US7187332B2 (en) 2005-02-28 2007-03-06 Research In Motion Limited Mobile wireless communications device with human interface diversity antenna and related methods
US7515877B2 (en) 2004-11-04 2009-04-07 Magnolia Broadband Inc. Communicating signals according to a quality indicator and a time boundary indicator
US7890133B2 (en) 2005-02-09 2011-02-15 Research In Motion Limited Mobile wireless communications device providing pattern/frequency control features and related methods
EP1696503B1 (en) 2005-02-28 2019-11-20 BlackBerry Limited Mobile wireless communications device with human interface diversity antenna and related method of operating such a device
US7616930B2 (en) 2005-05-24 2009-11-10 Magnolia Broadband Inc. Determining a phase adjustment in accordance with power trends
US7783267B1 (en) 2005-06-23 2010-08-24 Magnolia Broadband Inc. Modifying a signal in response to quality indicator availability
US7633905B1 (en) 2005-09-02 2009-12-15 Magnolia Broadband Inc. Calibrating a transmit diversity communication device
US7835702B1 (en) 2005-09-15 2010-11-16 Magnolia Broadband Inc. Calculating a diversity parameter adjustment according to previously applied diversity parameter adjustments
US7746946B2 (en) 2005-10-10 2010-06-29 Magnolia Broadband Inc. Performing a scan of diversity parameter differences
US7630445B1 (en) 2005-10-25 2009-12-08 Magnolia Broadband Inc. Establishing slot boundaries of slots of a diversity control feedback signal
US7796717B2 (en) 2005-11-02 2010-09-14 Magnolia Brandband Inc. Modifying a signal according to a diversity parameter adjustment
US7965987B2 (en) 2005-11-03 2011-06-21 Magnolia Broadband Inc. Amplifying a transmit signal using a fractional power amplifier
KR100734116B1 (ko) * 2005-12-28 2007-06-29 주식회사 팬택앤큐리텔 다이버서티 수신기능을 갖는 이동 통신 단말기
US7949069B2 (en) 2006-10-26 2011-05-24 Magnolia Broadband Inc. Method, system and apparatus for applying hybrid ARQ to the control of transmit diversity
US8150441B2 (en) 2006-11-06 2012-04-03 Magnolia Broadband Inc. Modifying a signal by controlling transmit diversity parameters
US8199735B2 (en) 2006-12-12 2012-06-12 Google Inc. Method, system and apparatus for the control of transmit diversity
US7663545B2 (en) 2006-12-26 2010-02-16 Magnolia Broadband Inc. Method, system and apparatus for determining antenna weighting for transmit diversity
US8027374B2 (en) 2006-12-27 2011-09-27 Magnolia Broadband Inc. Method, system and apparatus for transmit diversity control
US7869535B2 (en) 2007-02-28 2011-01-11 Magnolia Broadband Inc. Method, system and apparatus for phase control of transmit diversity signals
US20080227414A1 (en) 2007-03-01 2008-09-18 Yair Karmi System, method and apparatus for transmit diversity control based on variations in propagation path
US7991365B2 (en) 2007-03-01 2011-08-02 Magnolia Broadband Inc. Method, system and apparatus for estimation of propagation path variability of a transmit diversity channel
US8699968B2 (en) 2007-03-14 2014-04-15 Google Inc. Using multiple and a single feedback for UE uplink beamforming in soft handoff
US8750811B2 (en) 2007-03-14 2014-06-10 Google Inc. Method, apparatus and system for phase difference adjustment in transmit diversity
US8032091B2 (en) 2007-03-14 2011-10-04 Magnolia Broadband Inc. Method, apparatus and system for providing transmit diversity feedback during soft handoff
EP2143213B1 (en) 2007-03-14 2011-05-11 Magnolia Broadband, Inc. Method, apparatus and system for providing transmit diversity feedback
US8731489B2 (en) 2007-03-15 2014-05-20 Google Inc. Method and apparatus for random access channel probe initialization using transmit diversity
US8014734B2 (en) 2007-03-15 2011-09-06 Magnolia Broadband Inc. Method, apparatus and system for controlling a transmit diversity device
US8036603B2 (en) 2007-03-15 2011-10-11 Magnolia Broadband Inc. Method, apparatus and system for providing feedback to a transmit diversity device
US8046017B2 (en) 2007-03-15 2011-10-25 Magnolia Broadband Inc. Method and apparatus for random access channel probe initialization using transmit diversity
US8032092B2 (en) 2007-12-06 2011-10-04 Magnolia Broadband Inc. System, apparatus and method for introducing antenna pattern variability
KR101022271B1 (ko) * 2008-11-19 2011-03-21 고남옥 중계장치
JP5183798B2 (ja) * 2009-03-05 2013-04-17 三菱電機株式会社 無線通信システム、送信装置および受信装置
US8442457B2 (en) 2009-09-08 2013-05-14 Google Inc. System and method for adaptive beamforming for specific absorption rate control
US8958757B2 (en) 2010-05-10 2015-02-17 Google Inc. System, method and apparatus for mobile transmit diversity using symmetric phase difference
US9048913B2 (en) 2010-07-06 2015-06-02 Google Inc. Method and apparatus for adaptive control of transmit diversity to provide operating power reduction
US8849222B2 (en) 2011-02-16 2014-09-30 Google Inc. Method and device for phase adjustment based on closed-loop diversity feedback
CN103888984A (zh) * 2012-12-19 2014-06-25 中兴通讯股份有限公司 一种基站射频单元冗余热备份的方法及系统

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GB2237706A (en) * 1989-11-03 1991-05-08 Racal Res Ltd Radio communications link with diversity
GB2259430B (en) * 1991-09-07 1996-05-01 Motorola Ltd Radio receiver and transmitter providing diversity
US5422908A (en) * 1993-11-22 1995-06-06 Interdigital Technology Corp. Phased array spread spectrum system and method

Also Published As

Publication number Publication date
WO1997024818A1 (en) 1997-07-10
EP0870370A1 (en) 1998-10-14
AU1469397A (en) 1997-07-28
JP2000503184A (ja) 2000-03-14
KR19990076867A (ko) 1999-10-25
BR9612319A (pt) 1999-07-13
CN1208521A (zh) 1999-02-17

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