CA2374282A1 - Amplitude and phase estimation method in a wireless communication system - Google Patents

Amplitude and phase estimation method in a wireless communication system Download PDF

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Publication number
CA2374282A1
CA2374282A1 CA002374282A CA2374282A CA2374282A1 CA 2374282 A1 CA2374282 A1 CA 2374282A1 CA 002374282 A CA002374282 A CA 002374282A CA 2374282 A CA2374282 A CA 2374282A CA 2374282 A1 CA2374282 A1 CA 2374282A1
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CA
Canada
Prior art keywords
amplitude
enhance
wireless communication
channel
communication system
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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.)
Granted
Application number
CA002374282A
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French (fr)
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CA2374282C (en
Inventor
Fuyun Ling
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Qualcomm Inc
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Individual
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Publication date
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Priority to CA2638972A priority Critical patent/CA2638972C/en
Publication of CA2374282A1 publication Critical patent/CA2374282A1/en
Application granted granted Critical
Publication of CA2374282C publication Critical patent/CA2374282C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H04L25/0214—Channel estimation of impulse response of a single coefficient
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates

Abstract

Apparatuses for a transmitter and a receiver (202) which enhance the performance of a system coherent demodulation by utilizing non-pilot sub- channels to enhance the accuracy of estimates of amplitude and phase noise inherent in the transmission channel. This enhancement is accomplished by utilizing the corrected received data on a fundamental channel to enhance a pilot channel estimate, which is subsequently utilized by a dot product modu le in demodulating a supplementary data channel.
CA002374282A 1999-05-12 2000-05-10 Amplitude and phase estimation method in a wireless communication system Expired - Lifetime CA2374282C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2638972A CA2638972C (en) 1999-05-12 2000-05-10 Amplitude and phase estimation method in a wireless communication system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/310,232 1999-05-12
US09/310,232 US6414988B1 (en) 1999-05-12 1999-05-12 Amplitude and phase estimation method in a wireless communication system
PCT/US2000/012792 WO2000070773A2 (en) 1999-05-12 2000-05-10 Amplitude and phase estimation method in a wireless communication system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2638972A Division CA2638972C (en) 1999-05-12 2000-05-10 Amplitude and phase estimation method in a wireless communication system

Publications (2)

Publication Number Publication Date
CA2374282A1 true CA2374282A1 (en) 2000-11-23
CA2374282C CA2374282C (en) 2008-11-18

Family

ID=23201550

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2638972A Expired - Lifetime CA2638972C (en) 1999-05-12 2000-05-10 Amplitude and phase estimation method in a wireless communication system
CA002374282A Expired - Lifetime CA2374282C (en) 1999-05-12 2000-05-10 Amplitude and phase estimation method in a wireless communication system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2638972A Expired - Lifetime CA2638972C (en) 1999-05-12 2000-05-10 Amplitude and phase estimation method in a wireless communication system

Country Status (17)

Country Link
US (2) US6414988B1 (en)
EP (1) EP1177661B1 (en)
JP (3) JP4777517B2 (en)
KR (1) KR100780579B1 (en)
CN (1) CN1233136C (en)
AT (1) ATE305198T1 (en)
AU (1) AU769552B2 (en)
BR (1) BR0010421B1 (en)
CA (2) CA2638972C (en)
DE (1) DE60022750T2 (en)
HK (1) HK1060669A1 (en)
IL (1) IL146266A0 (en)
MX (1) MXPA01011492A (en)
NO (1) NO326935B1 (en)
RU (1) RU2271068C2 (en)
UA (1) UA64029C2 (en)
WO (1) WO2000070773A2 (en)

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Also Published As

Publication number Publication date
US6414988B1 (en) 2002-07-02
ATE305198T1 (en) 2005-10-15
AU4835400A (en) 2000-12-05
JP5698307B2 (en) 2015-04-08
BR0010421B1 (en) 2014-11-25
UA64029C2 (en) 2004-02-16
DE60022750T2 (en) 2006-07-06
CA2638972A1 (en) 2000-11-23
CA2374282C (en) 2008-11-18
KR20020023218A (en) 2002-03-28
NO20015489L (en) 2002-01-10
CN1471778A (en) 2004-01-28
EP1177661A2 (en) 2002-02-06
JP2011176837A (en) 2011-09-08
JP2013211885A (en) 2013-10-10
MXPA01011492A (en) 2002-07-30
DE60022750D1 (en) 2006-02-02
BR0010421A (en) 2003-07-08
CA2638972C (en) 2010-07-27
RU2271068C2 (en) 2006-02-27
AU769552B2 (en) 2004-01-29
NO20015489D0 (en) 2001-11-09
JP4777517B2 (en) 2011-09-21
JP2003521840A (en) 2003-07-15
JP5313282B2 (en) 2013-10-09
US6683907B2 (en) 2004-01-27
IL146266A0 (en) 2002-07-25
CN1233136C (en) 2005-12-21
NO326935B1 (en) 2009-03-16
US20020122471A1 (en) 2002-09-05
WO2000070773A3 (en) 2001-05-17
WO2000070773A2 (en) 2000-11-23
HK1060669A1 (en) 2004-08-13
EP1177661B1 (en) 2005-09-21
KR100780579B1 (en) 2007-11-29

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