HK1025694A1 - Orthogonal code synchronization system and method for spread spectrum cdma communications - Google Patents

Orthogonal code synchronization system and method for spread spectrum cdma communications

Info

Publication number
HK1025694A1
HK1025694A1 HK00104847A HK00104847A HK1025694A1 HK 1025694 A1 HK1025694 A1 HK 1025694A1 HK 00104847 A HK00104847 A HK 00104847A HK 00104847 A HK00104847 A HK 00104847A HK 1025694 A1 HK1025694 A1 HK 1025694A1
Authority
HK
Hong Kong
Prior art keywords
spread spectrum
orthogonal code
synchronization system
base station
code synchronization
Prior art date
Application number
HK00104847A
Other languages
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
Publication of HK1025694A1 publication Critical patent/HK1025694A1/xx

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
HK00104847A 1997-02-28 2000-08-02 Orthogonal code synchronization system and method for spread spectrum cdma communications HK1025694A1 (en)

Applications Claiming Priority (2)

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
PCT/US1998/003861 WO1998038758A2 (en) 1997-02-28 1998-02-26 Orthogonal code synchronization system and method for spread spectrum cdma communications

Publications (1)

Publication Number Publication Date
HK1025694A1 true HK1025694A1 (en) 2000-11-17

Family

ID=25195867

Family Applications (5)

Application Number Title Priority Date Filing Date
HK00104847A HK1025694A1 (en) 1997-02-28 2000-08-02 Orthogonal code synchronization system and method for spread spectrum cdma communications
HK04110306.4A HK1067002A1 (en) 1997-02-28 2004-12-29 Orthogonal code synchronization system and method for spread spectrum cdma communications
HK06108231.6A HK1086121A1 (en) 1997-02-28 2006-07-25 Synchronisation of the reverse link in a cdma communications system cdma
HK07105901.0A HK1098603A1 (en) 1997-02-28 2007-06-04 Orthogonal code synchronization system and method for spread spectrum cdma communications
HK07106559.3A HK1099144A1 (en) 1997-02-28 2007-06-18 Orthogonal code synchronization system and method for spread spectrum cdma communications

Family Applications After (4)

Application Number Title Priority Date Filing Date
HK04110306.4A HK1067002A1 (en) 1997-02-28 2004-12-29 Orthogonal code synchronization system and method for spread spectrum cdma communications
HK06108231.6A HK1086121A1 (en) 1997-02-28 2006-07-25 Synchronisation of the reverse link in a cdma communications system cdma
HK07105901.0A HK1098603A1 (en) 1997-02-28 2007-06-04 Orthogonal code synchronization system and method for spread spectrum cdma communications
HK07106559.3A HK1099144A1 (en) 1997-02-28 2007-06-18 Orthogonal code synchronization system and method for spread spectrum cdma communications

Country Status (10)

Country Link
US (2) US5943331A (xx)
EP (3) EP1622284B1 (xx)
JP (1) JP3697268B2 (xx)
CN (5) CN1702990A (xx)
AT (2) ATE405033T1 (xx)
DE (3) DE69823496T2 (xx)
DK (3) DK0978168T3 (xx)
ES (2) ES2144987T3 (xx)
HK (5) HK1025694A1 (xx)
WO (1) WO1998038758A2 (xx)

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Also Published As

Publication number Publication date
EP0978168B1 (en) 2004-04-28
DK1622284T3 (da) 2012-10-15
HK1067002A1 (en) 2005-03-18
EP0978168A2 (en) 2000-02-09
CN1249086A (zh) 2000-03-29
EP1622284B1 (en) 2012-07-18
CN1881857A (zh) 2006-12-20
ATE265762T1 (de) 2004-05-15
EP1622284A2 (en) 2006-02-01
EP1434361A2 (en) 2004-06-30
EP1434361B1 (en) 2008-08-13
DE978168T1 (de) 2000-11-09
JP3697268B2 (ja) 2005-09-21
US6141332A (en) 2000-10-31
US5943331A (en) 1999-08-24
HK1099144A1 (en) 2007-08-03
CN1702990A (zh) 2005-11-30
WO1998038758A2 (en) 1998-09-03
HK1086121A1 (en) 2006-09-08
WO1998038758A3 (en) 1998-11-26
DE69839895D1 (de) 2008-09-25
CN1878042A (zh) 2006-12-13
JP2001504311A (ja) 2001-03-27
DE69823496T2 (de) 2005-04-07
HK1098603A1 (en) 2007-07-20
ES2144987T3 (es) 2004-11-01
ES2312716T3 (es) 2009-03-01
ATE405033T1 (de) 2008-08-15
EP1434361A3 (en) 2005-04-06
DK0978168T3 (da) 2004-08-16
ES2144987T1 (es) 2000-07-01
DK1434361T3 (da) 2008-11-03
CN1881857B (zh) 2014-04-02
EP1622284A3 (en) 2008-01-23
CN1211941C (zh) 2005-07-20
DE69823496D1 (de) 2004-06-03
CN1878042B (zh) 2013-06-19
CN1878043A (zh) 2006-12-13

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