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GB2368753B - Method and apparatus for code group identification and frame synchronization in DS-CDMA systems - Google Patents

Method and apparatus for code group identification and frame synchronization in DS-CDMA systems

Info

Publication number
GB2368753B
GB2368753B GB0105872A GB0105872A GB2368753B GB 2368753 B GB2368753 B GB 2368753B GB 0105872 A GB0105872 A GB 0105872A GB 0105872 A GB0105872 A GB 0105872A GB 2368753 B GB2368753 B GB 2368753B
Authority
GB
United Kingdom
Prior art keywords
frame synchronization
group identification
code group
cdma systems
cdma
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 - Lifetime
Application number
GB0105872A
Other versions
GB2368753A (en
GB0105872D0 (en
Inventor
Hui-Ming Wang
Ju-Chun Wu
Ching-Hong Lin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Industrial Technology Research Institute ITRI
Original Assignee
Industrial Technology Research Institute ITRI
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 Industrial Technology Research Institute ITRI filed Critical Industrial Technology Research Institute ITRI
Publication of GB0105872D0 publication Critical patent/GB0105872D0/en
Publication of GB2368753A publication Critical patent/GB2368753A/en
Application granted granted Critical
Publication of GB2368753B publication Critical patent/GB2368753B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70752—Partial correlation
    • 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
    • H04B1/70735—Code identification
    • 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
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/708—Parallel implementation
    • 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
    • H04B2201/70707—Efficiency-related aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
GB0105872A 2000-10-30 2001-03-09 Method and apparatus for code group identification and frame synchronization in DS-CDMA systems Expired - Lifetime GB2368753B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW89122777A TW490981B (en) 2000-10-30 2000-10-30 Method and device for code group identification and frame boundary synchronization

Publications (3)

Publication Number Publication Date
GB0105872D0 GB0105872D0 (en) 2001-04-25
GB2368753A GB2368753A (en) 2002-05-08
GB2368753B true GB2368753B (en) 2002-12-31

Family

ID=21661719

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0105872A Expired - Lifetime GB2368753B (en) 2000-10-30 2001-03-09 Method and apparatus for code group identification and frame synchronization in DS-CDMA systems

Country Status (4)

Country Link
DE (1) DE10110708C2 (en)
FR (1) FR2816142B1 (en)
GB (1) GB2368753B (en)
TW (1) TW490981B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8116354B2 (en) 2008-06-13 2012-02-14 Mediatek Inc. Sync detection device and method for GNSS

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100622149B1 (en) * 2004-11-25 2006-09-19 주식회사 팬택 Apparatus and Method for Acquiring Code Group in Asynchronous Broadband Code Division Multiple Access System
KR100614745B1 (en) * 2004-12-29 2006-08-21 에스케이텔레콤 주식회사 Method and apparatus for acquiring code group in asynchronous wide area code division multiple access system using receive diversity
US7965759B2 (en) 2005-10-28 2011-06-21 Qualcomm Incorporated Synchronization codes for wireless communication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323751A (en) * 1994-07-01 1998-09-30 Motorola Inc Establishing a communication link between a portable radio and a base station
WO1999000912A1 (en) * 1997-06-27 1999-01-07 Telefonaktiebolaget Lm Ericsson (Publ) Mobile station synchronization within a spread spectrum communications system
WO2000057569A1 (en) * 1999-03-22 2000-09-28 Texas Instruments Incorporated Multistage pn code acquisition circuit and method
WO2000074276A1 (en) * 1999-05-28 2000-12-07 Interdigital Technology Corporation Cell search procedure for time division duplex communication systems using code division multiple access

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6144649A (en) * 1997-02-27 2000-11-07 Motorola, Inc. Method and apparatus for acquiring a pilot signal in a CDMA receiver
US6185244B1 (en) * 1997-08-29 2001-02-06 Telefonaktiebolaget Lm Ericsson Cell searching in a CDMA communications system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323751A (en) * 1994-07-01 1998-09-30 Motorola Inc Establishing a communication link between a portable radio and a base station
WO1999000912A1 (en) * 1997-06-27 1999-01-07 Telefonaktiebolaget Lm Ericsson (Publ) Mobile station synchronization within a spread spectrum communications system
WO2000057569A1 (en) * 1999-03-22 2000-09-28 Texas Instruments Incorporated Multistage pn code acquisition circuit and method
WO2000074276A1 (en) * 1999-05-28 2000-12-07 Interdigital Technology Corporation Cell search procedure for time division duplex communication systems using code division multiple access

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8116354B2 (en) 2008-06-13 2012-02-14 Mediatek Inc. Sync detection device and method for GNSS

Also Published As

Publication number Publication date
FR2816142A1 (en) 2002-05-03
GB2368753A (en) 2002-05-08
GB0105872D0 (en) 2001-04-25
FR2816142B1 (en) 2004-10-22
TW490981B (en) 2002-06-11
DE10110708C2 (en) 2003-07-31
DE10110708A1 (en) 2002-05-16

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20210308