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GB2369531B - Mobile communications device - Google Patents

Mobile communications device

Info

Publication number
GB2369531B
GB2369531B GB0028870A GB0028870A GB2369531B GB 2369531 B GB2369531 B GB 2369531B GB 0028870 A GB0028870 A GB 0028870A GB 0028870 A GB0028870 A GB 0028870A GB 2369531 B GB2369531 B GB 2369531B
Authority
GB
United Kingdom
Prior art keywords
communications device
mobile communications
mobile
communications
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
GB0028870A
Other versions
GB0028870D0 (en
GB2369531A (en
Inventor
Hans Cavander
Lars Lennartsson
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to GB0028870A priority Critical patent/GB2369531B/en
Publication of GB0028870D0 publication Critical patent/GB0028870D0/en
Priority to AU2002217057A priority patent/AU2002217057A1/en
Priority to PCT/EP2001/013726 priority patent/WO2002043264A2/en
Priority to US09/993,569 priority patent/US7039100B2/en
Publication of GB2369531A publication Critical patent/GB2369531A/en
Application granted granted Critical
Publication of GB2369531B publication Critical patent/GB2369531B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B1/70758—Multimode search, i.e. using multiple search strategies
    • 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
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
    • 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
    • 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)
GB0028870A 2000-11-27 2000-11-27 Mobile communications device Expired - Fee Related GB2369531B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB0028870A GB2369531B (en) 2000-11-27 2000-11-27 Mobile communications device
AU2002217057A AU2002217057A1 (en) 2000-11-27 2001-11-26 Code synchronization in a mobile communication device
PCT/EP2001/013726 WO2002043264A2 (en) 2000-11-27 2001-11-26 Code synchronization in a mobile communication device
US09/993,569 US7039100B2 (en) 2000-11-27 2001-11-27 Detection of correlation between detected transmissions from multiple base stations and a known code in a mobile telecommunications system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0028870A GB2369531B (en) 2000-11-27 2000-11-27 Mobile communications device

Publications (3)

Publication Number Publication Date
GB0028870D0 GB0028870D0 (en) 2001-01-10
GB2369531A GB2369531A (en) 2002-05-29
GB2369531B true GB2369531B (en) 2004-06-16

Family

ID=9903939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0028870A Expired - Fee Related GB2369531B (en) 2000-11-27 2000-11-27 Mobile communications device

Country Status (1)

Country Link
GB (1) GB2369531B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5579338A (en) * 1992-06-29 1996-11-26 Mitsubishi Denki Kabushiki Kaisha Spread spectrum receiver using partial correlations
WO1999041846A1 (en) * 1998-02-17 1999-08-19 Ericsson Inc. Flexible sliding correlator for direct sequence spread spectrum systems
WO2000064066A1 (en) * 1999-04-19 2000-10-26 Ericsson Inc. System and method for achieving slot synchronization in a wideband cdma system in the presence of large initial frequency errors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5579338A (en) * 1992-06-29 1996-11-26 Mitsubishi Denki Kabushiki Kaisha Spread spectrum receiver using partial correlations
WO1999041846A1 (en) * 1998-02-17 1999-08-19 Ericsson Inc. Flexible sliding correlator for direct sequence spread spectrum systems
WO2000064066A1 (en) * 1999-04-19 2000-10-26 Ericsson Inc. System and method for achieving slot synchronization in a wideband cdma system in the presence of large initial frequency errors

Also Published As

Publication number Publication date
GB0028870D0 (en) 2001-01-10
GB2369531A (en) 2002-05-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20061127