ES2166842T3 - Sistemas de radio movil celular de acceso multiple por division de codigo. - Google Patents

Sistemas de radio movil celular de acceso multiple por division de codigo.

Info

Publication number
ES2166842T3
ES2166842T3 ES96100135T ES96100135T ES2166842T3 ES 2166842 T3 ES2166842 T3 ES 2166842T3 ES 96100135 T ES96100135 T ES 96100135T ES 96100135 T ES96100135 T ES 96100135T ES 2166842 T3 ES2166842 T3 ES 2166842T3
Authority
ES
Spain
Prior art keywords
mobile radio
transmissions
base station
circuits
code division
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
ES96100135T
Other languages
English (en)
Inventor
Anthony Peter Hulbert
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.)
Roke Manor Research Ltd
Original Assignee
Roke Manor Research 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
Priority claimed from GB9500616A external-priority patent/GB2298341B/en
Application filed by Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Application granted granted Critical
Publication of ES2166842T3 publication Critical patent/ES2166842T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04B7/2618—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using hybrid code-time division multiple access [CDMA-TDMA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

EL SISTEMA DE RADIO MOVIL CELULAR DE ACCESO MULTIPLE POR DIVISION DE CODIGOS (CDMA) INCLUYE AL MENOS UNA ESTACION BASE Y AL MENOS UN TERMINAL MOVIL DISPUESTO PARA QUE SE COMUNIQUE CON CADA ESTACION BASE A TRAVES DE UN MEDIO DE RADIO. LA ESTACION BASE INCLUYE UN TRANSMISOR PARA LA TRANSMISION EN SERIE DE CIRCUITOS A MODO DE MULTIPLEXACION POR DIVISION DE TIEMPO AL MISMO TERMINAL O A TERMINALES MOVILES DIFERENTES, EN DONDE LAS TRANSMISIONES TIENEN LUGAR DE FORMA SEPARADA EN EL TIEMPO Y SON INHERENTEMENTE ORTOGONALES, CON LO QUE SE ELIMINAN LAS INTERFERENCIAS MUTUAS. LA TEMPORIZACION DE LAS TRANSMISIONES DE LOS CIRCUITOS A DIFERENTES USUARIOS SE PUEDE PERTURBAR. DE FORMA PARECIDA, LAS TRANSMISIONES TIENEN LUGAR A MODO DE SEÑALES BINARIAS DE SINCRONIZACION DE DESFASES SOBRE UN COMPONENTE EN FASE DE LA SEÑAL Y OTRAS TRANSMISIONES TIENEN LUGAR SOBRE UN COMPONENTE EN FASE DE CUADRATURA DE LA SEÑAL. SE PUEDE TRANSMITIR UNA SEÑAL PILOTO ENVIANDO ALGUNOS CIRCUITOS EN UN SUBMARCO COMO CIRCUITOS CONOCIDOS PARA QUE PUEDAN SER AGRUPADOS DE FORMA CONOCIDA PARA OBTENER UNA ESTIMACION DEL CANAL.
ES96100135T 1995-02-24 1996-01-08 Sistemas de radio movil celular de acceso multiple por division de codigo. Expired - Lifetime ES2166842T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9500616A GB2298341B (en) 1994-08-13 1995-02-24 Code division multiple access cellular mobile radio systems

Publications (1)

Publication Number Publication Date
ES2166842T3 true ES2166842T3 (es) 2002-05-01

Family

ID=10767954

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96100135T Expired - Lifetime ES2166842T3 (es) 1995-02-24 1996-01-08 Sistemas de radio movil celular de acceso multiple por division de codigo.

Country Status (4)

Country Link
EP (1) EP0729240B1 (es)
DE (1) DE69616112T2 (es)
ES (1) ES2166842T3 (es)
FI (1) FI109494B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7184426B2 (en) 2002-12-12 2007-02-27 Qualcomm, Incorporated Method and apparatus for burst pilot for a time division multiplex system
US9118387B2 (en) 1997-11-03 2015-08-25 Qualcomm Incorporated Pilot reference transmission for a wireless communication system
US6574211B2 (en) * 1997-11-03 2003-06-03 Qualcomm Incorporated Method and apparatus for high rate packet data transmission
KR100429545B1 (ko) 1999-08-17 2004-04-28 삼성전자주식회사 이동통신 시스템의 스크램블링 부호의 식별자 통신방법
US8064409B1 (en) 1999-08-25 2011-11-22 Qualcomm Incorporated Method and apparatus using a multi-carrier forward link in a wireless communication system
RU2168866C1 (ru) * 1999-10-26 2001-06-10 Военный университет связи Формирователь многочастотных сигналов
FI19992734L (fi) 1999-12-20 2001-06-21 Nokia Networks Oy Menetelmä hajaspektrisignaalin vastaanottamiseksi ja vastaanotin
US6973098B1 (en) 2000-10-25 2005-12-06 Qualcomm, Incorporated Method and apparatus for determining a data rate in a high rate packet data wireless communications system
US7068683B1 (en) 2000-10-25 2006-06-27 Qualcomm, Incorporated Method and apparatus for high rate packet data and low delay data transmissions
US8811200B2 (en) 2009-09-22 2014-08-19 Qualcomm Incorporated Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020056A (en) * 1989-05-02 1991-05-28 General Electric Company Reduction of synchronous fading effects by time hopping of user slots in TDMA frames
US5313457A (en) * 1992-04-14 1994-05-17 Trimble Navigation Limited Code position modulation system and method for multiple user satellite communications
FI925472L (fi) * 1992-12-01 1994-06-02 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä sekä -järjestelmä

Also Published As

Publication number Publication date
EP0729240B1 (en) 2001-10-24
EP0729240A3 (en) 1999-10-27
FI109494B (fi) 2002-08-15
DE69616112T2 (de) 2002-06-06
FI960826A0 (fi) 1996-02-23
FI960826L (fi) 1996-08-25
EP0729240A2 (en) 1996-08-28
DE69616112D1 (de) 2001-11-29

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