DK0978168T3 - Ortogonalt kodesynkroniseringssystem og fremgangsmåde til spredt-spektrum CDMA kommunikationer - Google Patents

Ortogonalt kodesynkroniseringssystem og fremgangsmåde til spredt-spektrum CDMA kommunikationer

Info

Publication number
DK0978168T3
DK0978168T3 DK98915123T DK98915123T DK0978168T3 DK 0978168 T3 DK0978168 T3 DK 0978168T3 DK 98915123 T DK98915123 T DK 98915123T DK 98915123 T DK98915123 T DK 98915123T DK 0978168 T3 DK0978168 T3 DK 0978168T3
Authority
DK
Denmark
Prior art keywords
spread
orthogonal code
synchronization system
base station
synchronization
Prior art date
Application number
DK98915123T
Other languages
Danish (da)
English (en)
Inventor
Gil Lavean
Original Assignee
Interdigital Tech Corp
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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Application granted granted Critical
Publication of DK0978168T3 publication Critical patent/DK0978168T3/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh
    • 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
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • 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
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709709—Methods of preventing interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Communication Control (AREA)
  • Radio Relay Systems (AREA)
DK98915123T 1997-02-28 1998-02-26 Ortogonalt kodesynkroniseringssystem og fremgangsmåde til spredt-spektrum CDMA kommunikationer DK0978168T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/807,228 US5943331A (en) 1997-02-28 1997-02-28 Orthogonal code synchronization system and method for spread spectrum CDMA communications

Publications (1)

Publication Number Publication Date
DK0978168T3 true DK0978168T3 (da) 2004-08-16

Family

ID=25195867

Family Applications (3)

Application Number Title Priority Date Filing Date
DK03028472T DK1434361T3 (da) 1997-02-28 1998-02-26 Ortogonalt kodesynkroniseringssystem og fremgangsmåde til spredt spektrum CDMA-kommunikation
DK05023550.6T DK1622284T3 (da) 1997-02-28 1998-02-26 Synkronisering af returlinket i et CDMA-kommunikationssystem
DK98915123T DK0978168T3 (da) 1997-02-28 1998-02-26 Ortogonalt kodesynkroniseringssystem og fremgangsmåde til spredt-spektrum CDMA kommunikationer

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DK03028472T DK1434361T3 (da) 1997-02-28 1998-02-26 Ortogonalt kodesynkroniseringssystem og fremgangsmåde til spredt spektrum CDMA-kommunikation
DK05023550.6T DK1622284T3 (da) 1997-02-28 1998-02-26 Synkronisering af returlinket i et CDMA-kommunikationssystem

Country Status (10)

Country Link
US (2) US5943331A (fr)
EP (3) EP1434361B1 (fr)
JP (1) JP3697268B2 (fr)
CN (5) CN1702990A (fr)
AT (2) ATE265762T1 (fr)
DE (3) DE978168T1 (fr)
DK (3) DK1434361T3 (fr)
ES (2) ES2144987T3 (fr)
HK (5) HK1025694A1 (fr)
WO (1) WO1998038758A2 (fr)

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Also Published As

Publication number Publication date
HK1067002A1 (en) 2005-03-18
CN1249086A (zh) 2000-03-29
EP1622284B1 (fr) 2012-07-18
HK1086121A1 (en) 2006-09-08
EP1434361B1 (fr) 2008-08-13
ATE265762T1 (de) 2004-05-15
HK1025694A1 (en) 2000-11-17
DE69823496D1 (de) 2004-06-03
DE69823496T2 (de) 2005-04-07
ES2144987T3 (es) 2004-11-01
EP1622284A2 (fr) 2006-02-01
WO1998038758A3 (fr) 1998-11-26
JP2001504311A (ja) 2001-03-27
ES2312716T3 (es) 2009-03-01
EP0978168B1 (fr) 2004-04-28
CN1881857B (zh) 2014-04-02
US6141332A (en) 2000-10-31
CN1881857A (zh) 2006-12-20
EP1434361A2 (fr) 2004-06-30
DK1622284T3 (da) 2012-10-15
ES2144987T1 (es) 2000-07-01
CN1878042A (zh) 2006-12-13
EP1434361A3 (fr) 2005-04-06
CN1878042B (zh) 2013-06-19
CN1878043A (zh) 2006-12-13
DK1434361T3 (da) 2008-11-03
US5943331A (en) 1999-08-24
WO1998038758A2 (fr) 1998-09-03
EP0978168A2 (fr) 2000-02-09
EP1622284A3 (fr) 2008-01-23
CN1702990A (zh) 2005-11-30
HK1098603A1 (en) 2007-07-20
DE69839895D1 (de) 2008-09-25
ATE405033T1 (de) 2008-08-15
HK1099144A1 (en) 2007-08-03
DE978168T1 (de) 2000-11-09
CN1211941C (zh) 2005-07-20
JP3697268B2 (ja) 2005-09-21

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