GB0101860D0 - A rake receiver - Google Patents

A rake receiver

Info

Publication number
GB0101860D0
GB0101860D0 GB0101860A GB0101860A GB0101860D0 GB 0101860 D0 GB0101860 D0 GB 0101860D0 GB 0101860 A GB0101860 A GB 0101860A GB 0101860 A GB0101860 A GB 0101860A GB 0101860 D0 GB0101860 D0 GB 0101860D0
Authority
GB
United Kingdom
Prior art keywords
rake receiver
rake
receiver
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.)
Withdrawn
Application number
GB0101860A
Other versions
GB2371725A (en
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.)
Aeroflex Cambridge Ltd
Original Assignee
Ubinetics Ltd
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 Ubinetics Ltd filed Critical Ubinetics Ltd
Priority to GB0101860A priority Critical patent/GB2371725A/en
Publication of GB0101860D0 publication Critical patent/GB0101860D0/en
Priority to PCT/GB2002/000260 priority patent/WO2002060080A1/en
Publication of GB2371725A publication Critical patent/GB2371725A/en
Withdrawn legal-status Critical Current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
    • H04B1/7085—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
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • 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
    • 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
    • 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
    • H04B2201/70707—Efficiency-related aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
GB0101860A 2001-01-24 2001-01-24 A rake receiver wherein each finger has a DLL and at least one has early and late correlators connected via a controllable bandwidth filter to a subtractor Withdrawn GB2371725A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0101860A GB2371725A (en) 2001-01-24 2001-01-24 A rake receiver wherein each finger has a DLL and at least one has early and late correlators connected via a controllable bandwidth filter to a subtractor
PCT/GB2002/000260 WO2002060080A1 (en) 2001-01-24 2002-01-22 A rake receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0101860A GB2371725A (en) 2001-01-24 2001-01-24 A rake receiver wherein each finger has a DLL and at least one has early and late correlators connected via a controllable bandwidth filter to a subtractor

Publications (2)

Publication Number Publication Date
GB0101860D0 true GB0101860D0 (en) 2001-03-07
GB2371725A GB2371725A (en) 2002-07-31

Family

ID=9907438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0101860A Withdrawn GB2371725A (en) 2001-01-24 2001-01-24 A rake receiver wherein each finger has a DLL and at least one has early and late correlators connected via a controllable bandwidth filter to a subtractor

Country Status (2)

Country Link
GB (1) GB2371725A (en)
WO (1) WO2002060080A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0219213D0 (en) * 2002-08-16 2002-09-25 Koninkl Philips Electronics Nv Improvements in or relating to wireless radio receivers
DE10251322B4 (en) 2002-11-04 2006-10-26 Advanced Micro Devices, Inc., Sunnyvale Early-late correlation to timing error correction in data communication receivers
CN100438640C (en) 2002-12-30 2008-11-26 Nxp股份有限公司 Sampling method and its device for down synchronous tracking in TDD radio communication
GB0305561D0 (en) 2003-03-11 2003-04-16 Ttpcomm Ltd Multi-path searching

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574747A (en) * 1995-01-04 1996-11-12 Interdigital Technology Corporation Spread spectrum adaptive power control system and method
GB2349555A (en) * 1999-04-29 2000-11-01 Roke Manor Research Delay lock loops

Also Published As

Publication number Publication date
WO2002060080A1 (en) 2002-08-01
GB2371725A (en) 2002-07-31

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)