NO982248L - FremgangsmÕte og anordning for digitalt radiosignalmottak - Google Patents

FremgangsmÕte og anordning for digitalt radiosignalmottak

Info

Publication number
NO982248L
NO982248L NO982248A NO982248A NO982248L NO 982248 L NO982248 L NO 982248L NO 982248 A NO982248 A NO 982248A NO 982248 A NO982248 A NO 982248A NO 982248 L NO982248 L NO 982248L
Authority
NO
Norway
Prior art keywords
radio signal
signal reception
digital radio
digital
reception
Prior art date
Application number
NO982248A
Other languages
English (en)
Other versions
NO317331B1 (no
NO982248D0 (no
Inventor
Andrew Peter Ansbro
Spase Drakul
Antonio Fanigliulo
Gianluca Fontana
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Publication of NO982248D0 publication Critical patent/NO982248D0/no
Publication of NO982248L publication Critical patent/NO982248L/no
Publication of NO317331B1 publication Critical patent/NO317331B1/no

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
    • H04B7/0837—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
    • H04B7/0848—Joint weighting
    • H04B7/0851—Joint weighting using training sequences or error signal
    • 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
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Circuits Of Receivers In General (AREA)
  • Communication Control (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
NO19982248A 1997-07-14 1998-05-15 Fremgangsmate og anordning for digitalt radiosignalmottak NO317331B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT97TO000633A IT1293447B1 (it) 1997-07-14 1997-07-14 Procedimento e sistema per la ricezione di segnali digitali

Publications (3)

Publication Number Publication Date
NO982248D0 NO982248D0 (no) 1998-05-15
NO982248L true NO982248L (no) 1999-01-15
NO317331B1 NO317331B1 (no) 2004-10-11

Family

ID=11415868

Family Applications (1)

Application Number Title Priority Date Filing Date
NO19982248A NO317331B1 (no) 1997-07-14 1998-05-15 Fremgangsmate og anordning for digitalt radiosignalmottak

Country Status (4)

Country Link
US (1) US6330294B1 (no)
EP (1) EP0892504A3 (no)
IT (1) IT1293447B1 (no)
NO (1) NO317331B1 (no)

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US6990137B2 (en) * 2001-05-17 2006-01-24 Qualcomm, Incorporated System and method for received signal prediction in wireless communications systems
US8249187B2 (en) 2002-05-09 2012-08-21 Google Inc. System, method and apparatus for mobile transmit diversity using symmetric phase difference
DE60230981D1 (de) * 2001-05-31 2009-03-12 Magnolia Broadband Inc Kommunikationseinrichtung mit intelligenter antenne, die ein qualitätsanzeigesignal verwendet
EP1763157A3 (en) * 2002-02-14 2007-06-27 Interdigital Technology Corporation Wireless communication system having an adaptive threshold for timing deviation measurement, and method
US6873662B2 (en) 2002-02-14 2005-03-29 Interdigital Technology Corporation Wireless communication system having adaptive threshold for timing deviation measurement and method
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JP3891427B2 (ja) * 2002-12-27 2007-03-14 富士通株式会社 適応アレーアンテナ制御装置
CN100492937C (zh) * 2002-12-27 2009-05-27 Nxp股份有限公司 具有多天线的移动终端及其方法
CN100576772C (zh) 2002-12-27 2009-12-30 Nxp股份有限公司 具有智能天线的移动终端及其方法
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US7418067B1 (en) 2003-04-14 2008-08-26 Magnolia Broadband Inc. Processing diversity signals at a mobile device using phase adjustments
US7746967B2 (en) 2003-04-30 2010-06-29 Intel Corporation Beam-former and combiner for a multiple-antenna system
US6996197B2 (en) * 2003-09-17 2006-02-07 Motorola, Inc. Method and apparatus for reducing interference within a communication system
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
US7433434B2 (en) * 2004-10-01 2008-10-07 General Dynamics C4 Systems, Inc. Communication channel tracking apparatus
US7558591B2 (en) * 2004-10-12 2009-07-07 Magnolia Broadband Inc. Determining a power control group boundary of a power control group
US7515877B2 (en) * 2004-11-04 2009-04-07 Magnolia Broadband Inc. Communicating signals according to a quality indicator and a time boundary indicator
US7616930B2 (en) * 2005-05-24 2009-11-10 Magnolia Broadband Inc. Determining a phase adjustment in accordance with power trends
US20060267983A1 (en) * 2005-05-24 2006-11-30 Magnolia Broadband Inc. Modifying a signal by adjusting the phase and amplitude of the signal
US7783267B1 (en) 2005-06-23 2010-08-24 Magnolia Broadband Inc. Modifying a signal in response to quality indicator availability
US7639763B2 (en) * 2005-08-23 2009-12-29 Research In Motion Limited Wireless communications device including a joint demodulation filter for co-channel interference reduction and related methods
US7643590B2 (en) * 2005-08-23 2010-01-05 Research In Motion Limited Joint demodulation filter for co-channel interference reduction and related methods
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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
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
US20080160990A1 (en) * 2006-12-29 2008-07-03 Yair Karmi System, method and apparatus for identification of power control using reverse rate indication
US7869535B2 (en) * 2007-02-28 2011-01-11 Magnolia Broadband Inc. Method, system and apparatus for phase control of transmit diversity signals
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
US20080227414A1 (en) 2007-03-01 2008-09-18 Yair Karmi System, method and apparatus for transmit diversity control based on variations in propagation path
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
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
US8014734B2 (en) * 2007-03-15 2011-09-06 Magnolia Broadband Inc. Method, apparatus and system for controlling 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
US8036603B2 (en) * 2007-03-15 2011-10-11 Magnolia Broadband Inc. Method, apparatus and system for providing feedback to a transmit diversity device
US8032092B2 (en) * 2007-12-06 2011-10-04 Magnolia Broadband Inc. System, apparatus and method for introducing antenna pattern variability
CN101778061B (zh) * 2009-01-12 2013-01-30 瑞昱半导体股份有限公司 具有适应性信道估测功能的接收系统及适应性信道估测器
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
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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

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Also Published As

Publication number Publication date
EP0892504A2 (en) 1999-01-20
NO317331B1 (no) 2004-10-11
ITTO970633A1 (it) 1999-01-14
NO982248D0 (no) 1998-05-15
IT1293447B1 (it) 1999-03-01
EP0892504A3 (en) 2000-07-19
US6330294B1 (en) 2001-12-11

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