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PT732013E - Processador de pesquisa por trajectorias multiplas para um sistema de comunicacoes de acesso multiplo com espalhamento de espectro - Google Patents

Processador de pesquisa por trajectorias multiplas para um sistema de comunicacoes de acesso multiplo com espalhamento de espectro

Info

Publication number
PT732013E
PT732013E PT95937306T PT95937306T PT732013E PT 732013 E PT732013 E PT 732013E PT 95937306 T PT95937306 T PT 95937306T PT 95937306 T PT95937306 T PT 95937306T PT 732013 E PT732013 E PT 732013E
Authority
PT
Portugal
Prior art keywords
search
processor
offset
modem
reduces
Prior art date
Application number
PT95937306T
Other languages
English (en)
Inventor
Jeffrey A Levin
Kenneth D Easton
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of PT732013E publication Critical patent/PT732013E/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • 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
    • H04B1/7075—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
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70756—Jumping within the code, i.e. masking or slewing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • 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
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Computer And Data Communications (AREA)
  • Radio Transmission System (AREA)
  • Circuits Of Receivers In General (AREA)
PT95937306T 1994-09-30 1995-09-27 Processador de pesquisa por trajectorias multiplas para um sistema de comunicacoes de acesso multiplo com espalhamento de espectro PT732013E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31617794A 1994-09-30 1994-09-30

Publications (1)

Publication Number Publication Date
PT732013E true PT732013E (pt) 2003-11-28

Family

ID=23227854

Family Applications (1)

Application Number Title Priority Date Filing Date
PT95937306T PT732013E (pt) 1994-09-30 1995-09-27 Processador de pesquisa por trajectorias multiplas para um sistema de comunicacoes de acesso multiplo com espalhamento de espectro

Country Status (22)

Country Link
US (1) US20010046205A1 (pt)
EP (1) EP0732013B1 (pt)
JP (1) JPH09506234A (pt)
KR (1) KR100385004B1 (pt)
CN (1) CN1096157C (pt)
AT (1) ATE243395T1 (pt)
AU (2) AU688625B2 (pt)
BR (1) BR9506390A (pt)
CA (1) CA2174243A1 (pt)
DE (1) DE69531096T2 (pt)
DK (1) DK0732013T3 (pt)
ES (1) ES2201123T3 (pt)
FI (1) FI114123B (pt)
IL (1) IL115461A0 (pt)
MX (1) MX9602026A (pt)
MY (1) MY120873A (pt)
PT (1) PT732013E (pt)
RU (1) RU2149509C1 (pt)
SI (1) SI0732013T1 (pt)
TW (1) TW294866B (pt)
WO (1) WO1996010873A1 (pt)
ZA (1) ZA957858B (pt)

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HK1015198A1 (en) 1999-10-08
ATE243395T1 (de) 2003-07-15
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