ES2179051T3 - Dispositivo y metodo para transmision cdma discontinua. - Google Patents

Dispositivo y metodo para transmision cdma discontinua.

Info

Publication number
ES2179051T3
ES2179051T3 ES93850066T ES93850066T ES2179051T3 ES 2179051 T3 ES2179051 T3 ES 2179051T3 ES 93850066 T ES93850066 T ES 93850066T ES 93850066 T ES93850066 T ES 93850066T ES 2179051 T3 ES2179051 T3 ES 2179051T3
Authority
ES
Spain
Prior art keywords
reception
conversation
impulses
transmission
data
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
ES93850066T
Other languages
English (en)
Inventor
Paul W Dent
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.)
Ericsson Inc
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of ES2179051T3 publication Critical patent/ES2179051T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • 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
    • H04B1/70755—Setting of lock conditions, e.g. threshold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0079—Receiver details
    • H04L7/0083—Receiver details taking measures against momentary loss of synchronisation, e.g. inhibiting the synchronisation, using idle words or using redundant clocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Graft Or Block Polymers (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

UN SISTEMA DE RADIOTELEFONO CELULAR QUE EMPLEA TRANSMISION DISCONTINUA Y RECEPCION DE SEÑALES HABLADAS QUE CONSERVA LA RECEPCION DE LOS RECURSOS PROCESADOS. SE SUPERPONE UNA ESTRUCTURA A LOS IMPULSOS DIGITALIZADOS DE LA CONVERSACION PARA DIVIDIR LAS UNIDADES DE ENTRADA DE DATOS EN TIEMPOS FIJOS DE TRANSMISION. CUANDO NO SE ESTA REALIZANDO UNA CONVERSACION, SE IMPIDE LA TRANSMISION DE ESA ESTRUCTURA. EN EL RECEPTOR FUNCIONA UN DECODIFICADOR DE LOS IMPULSOS RECIBIDOS PARA DETERMINAR UNA CORRELACION CON UNA DETERMINADA PALABRA CLAVE. SI NO SE ENCUENTRA LA CORRELACION DESPUES DE LA ENTRADA DE UNOS CUANTOS IMPULSOS DE LA ESTRUCTURA, DEBIDO A LA AUSENCIA DE CONVERSACION, LA MEMORIA DE LA ESTRUCTURA DESACTIVA EL DECODIFICADOR. ESTE ACCESO LIBERA LOS RECURSOS DE RECEPCION PARA OTRAS TAREAS, COMO PUEDEN SER LA DECODIFICACION DE OTRAS SEÑALES RECIBIDAS. LA ESTRUCTURA DE DATOS DESDE LAS DIFERENTES FUENTES SE TRANSMITES CON UN INTERVALO DE TIEMPO DEFINIDO, PARA PERMITIR SEGUIR SINCRONIZADO AL RECEPTOREN AUSENCIA DE TRANSMISION DE DATOS. LAS ESTRUCTURAS ASOCIADAS CON FUENTES DIFERENTES ESTAN DESPLAZADAS UNAS EN RELACION CON OTRAS PARA DISTRIBUIR EL PROCESO DE CARGA Y RECEPCION.
ES93850066T 1992-04-10 1993-04-01 Dispositivo y metodo para transmision cdma discontinua. Expired - Lifetime ES2179051T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/866,555 US5239557A (en) 1992-04-10 1992-04-10 Discountinuous CDMA reception

Publications (1)

Publication Number Publication Date
ES2179051T3 true ES2179051T3 (es) 2003-01-16

Family

ID=25347862

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93850066T Expired - Lifetime ES2179051T3 (es) 1992-04-10 1993-04-01 Dispositivo y metodo para transmision cdma discontinua.

Country Status (16)

Country Link
US (1) US5239557A (es)
EP (1) EP0565504B1 (es)
JP (1) JP3248911B2 (es)
KR (1) KR100296064B1 (es)
AU (1) AU668567B2 (es)
BR (1) BR9305477A (es)
CA (1) CA2110999C (es)
DE (1) DE69332054T2 (es)
ES (1) ES2179051T3 (es)
FI (1) FI110733B (es)
HK (1) HK1014320A1 (es)
MX (1) MX9301891A (es)
NZ (1) NZ252372A (es)
SG (1) SG50655A1 (es)
TW (1) TW231350B (es)
WO (1) WO1993021707A1 (es)

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Also Published As

Publication number Publication date
JPH08501665A (ja) 1996-02-20
BR9305477A (pt) 1994-10-11
DE69332054D1 (de) 2002-08-01
JP3248911B2 (ja) 2002-01-21
FI110733B (fi) 2003-03-14
WO1993021707A1 (en) 1993-10-28
SG50655A1 (en) 1998-07-20
AU668567B2 (en) 1996-05-09
EP0565504A1 (en) 1993-10-13
US5239557A (en) 1993-08-24
EP0565504B1 (en) 2002-06-26
CA2110999C (en) 2001-10-02
KR940701614A (ko) 1994-05-28
TW231350B (es) 1994-10-01
AU4101593A (en) 1993-11-18
FI935524A0 (fi) 1993-12-09
CA2110999A1 (en) 1993-10-28
NZ252372A (en) 1996-08-27
KR100296064B1 (ko) 2001-10-24
HK1014320A1 (en) 1999-09-24
FI935524A (fi) 1994-02-09
MX9301891A (es) 1994-03-31
DE69332054T2 (de) 2002-11-28

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