MX9301649A - Receptor rake con combinacion selectiva de rayo. - Google Patents

Receptor rake con combinacion selectiva de rayo.

Info

Publication number
MX9301649A
MX9301649A MX9301649A MX9301649A MX9301649A MX 9301649 A MX9301649 A MX 9301649A MX 9301649 A MX9301649 A MX 9301649A MX 9301649 A MX9301649 A MX 9301649A MX 9301649 A MX9301649 A MX 9301649A
Authority
MX
Mexico
Prior art keywords
receiver
samples
rake receiver
selective
signals
Prior art date
Application number
MX9301649A
Other languages
English (en)
Inventor
Gregory E Bottomley
Original Assignee
Ericsson Ge Mobile Communicat
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 Ericsson Ge Mobile Communicat filed Critical Ericsson Ge Mobile Communicat
Publication of MX9301649A publication Critical patent/MX9301649A/es

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
    • H04B1/7097—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
    • 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
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Transmission System (AREA)
  • Radio Relay Systems (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

Se usa un receptor RAKE modificado, al cual se hace referencia como un receptor WRAKE en comunicaciones de CDMA. Es particularmente adaptable a un sistema de CDMA substrativo. El receptor incluye un receptor de radio para recibir y demodular una señal compuesta de señales transmitidas traslapantes (señales de dispersión), un sacamuestras para tomar muestras de las señales recibidas, un selector para seleccionar grupos diferentes de muestras, un correlacionador para correlacionar las muestras con códigos de dispensión conocidos y un comparador para determinar el simbolo transmitido. El receptor incluye también un combinador que combina ya sea grupos diferentes de muestras juntas o combina valores de correlación direntes juntos.
MX9301649A 1992-03-25 1993-03-24 Receptor rake con combinacion selectiva de rayo. MX9301649A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/857,433 US5237586A (en) 1992-03-25 1992-03-25 Rake receiver with selective ray combining

Publications (1)

Publication Number Publication Date
MX9301649A true MX9301649A (es) 1993-12-01

Family

ID=25325988

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9301649A MX9301649A (es) 1992-03-25 1993-03-24 Receptor rake con combinacion selectiva de rayo.

Country Status (16)

Country Link
US (1) US5237586A (es)
EP (1) EP0563020B1 (es)
JP (1) JP3337217B2 (es)
KR (1) KR100290490B1 (es)
AU (1) AU659309B2 (es)
BR (1) BR9305450A (es)
CA (1) CA2109947C (es)
DE (1) DE69333819T2 (es)
ES (1) ES2242953T3 (es)
FI (1) FI114517B (es)
HK (1) HK1014311A1 (es)
MX (1) MX9301649A (es)
NZ (1) NZ251619A (es)
SG (1) SG43307A1 (es)
TW (1) TW231388B (es)
WO (1) WO1993019552A1 (es)

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DE69333819T2 (de) 2006-03-23
FI935223A0 (fi) 1993-11-24
EP0563020B1 (en) 2005-05-25
CA2109947A1 (en) 1993-09-30
BR9305450A (pt) 1994-11-08
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WO1993019552A1 (en) 1993-09-30
US5237586A (en) 1993-08-17
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EP0563020A2 (en) 1993-09-29
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AU3936793A (en) 1993-10-21
TW231388B (es) 1994-10-01
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