CA2330926C - Search window delay tracking in code division multiple access communication systems - Google Patents

Search window delay tracking in code division multiple access communication systems Download PDF

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Publication number
CA2330926C
CA2330926C CA002330926A CA2330926A CA2330926C CA 2330926 C CA2330926 C CA 2330926C CA 002330926 A CA002330926 A CA 002330926A CA 2330926 A CA2330926 A CA 2330926A CA 2330926 C CA2330926 C CA 2330926C
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Canada
Prior art keywords
delay
search window
error
signal
cir
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 - Fee Related
Application number
CA002330926A
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English (en)
French (fr)
Other versions
CA2330926A1 (en
Inventor
Branislav Popovic
Georg Frank
Matthias Schulist
Goran Klang
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Unwired Planet LLC
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Telefonaktiebolaget LM Ericsson AB
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Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of CA2330926A1 publication Critical patent/CA2330926A1/en
Application granted granted Critical
Publication of CA2330926C publication Critical patent/CA2330926C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • 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
    • H04B1/7113—Determination of path profile
    • 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
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
CA002330926A 1998-05-01 1999-04-29 Search window delay tracking in code division multiple access communication systems Expired - Fee Related CA2330926C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/070,778 1998-05-01
US09/070,778 US6370397B1 (en) 1998-05-01 1998-05-01 Search window delay tracking in code division multiple access communication systems
PCT/SE1999/000709 WO1999057819A1 (en) 1998-05-01 1999-04-29 Search window delay tracking in code division multiple access communication systems

Publications (2)

Publication Number Publication Date
CA2330926A1 CA2330926A1 (en) 1999-11-11
CA2330926C true CA2330926C (en) 2010-02-02

Family

ID=22097337

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002330926A Expired - Fee Related CA2330926C (en) 1998-05-01 1999-04-29 Search window delay tracking in code division multiple access communication systems

Country Status (11)

Country Link
US (1) US6370397B1 (enExample)
EP (1) EP1082820B1 (enExample)
JP (1) JP4242563B2 (enExample)
KR (1) KR100689993B1 (enExample)
CN (1) CN1135725C (enExample)
AR (1) AR016244A1 (enExample)
AU (1) AU755811B2 (enExample)
CA (1) CA2330926C (enExample)
DE (1) DE69932929T2 (enExample)
TW (1) TW428375B (enExample)
WO (1) WO1999057819A1 (enExample)

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Also Published As

Publication number Publication date
AU4302699A (en) 1999-11-23
AR016244A1 (es) 2001-06-20
EP1082820B1 (en) 2006-08-23
EP1082820A1 (en) 2001-03-14
WO1999057819A1 (en) 1999-11-11
KR20010043229A (ko) 2001-05-25
CA2330926A1 (en) 1999-11-11
US6370397B1 (en) 2002-04-09
AU755811B2 (en) 2002-12-19
TW428375B (en) 2001-04-01
KR100689993B1 (ko) 2007-03-08
DE69932929D1 (de) 2006-10-05
JP4242563B2 (ja) 2009-03-25
CN1135725C (zh) 2004-01-21
CN1308790A (zh) 2001-08-15
JP2002514032A (ja) 2002-05-14
DE69932929T2 (de) 2007-04-19

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