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 (9)

* 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
FI19992734A (fi) * 1999-12-20 2001-06-21 Nokia Networks Oy Menetelmä hajaspektrisignaalin vastaanottamiseksi ja vastaanotin
US7068683B1 (en) 2000-10-25 2006-06-27 Qualcomm, Incorporated Method and apparatus for high rate packet data and low delay data transmissions
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
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
FI925472A (fi) * 1992-12-01 1994-06-02 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä sekä -järjestelmä

Also Published As

Publication number Publication date
EP0729240A2 (en) 1996-08-28
EP0729240A3 (en) 1999-10-27
FI109494B (fi) 2002-08-15
DE69616112D1 (de) 2001-11-29
FI960826A0 (fi) 1996-02-23
DE69616112T2 (de) 2002-06-06
EP0729240B1 (en) 2001-10-24
FI960826A (fi) 1996-08-25

Similar Documents

Publication Publication Date Title
ATE204105T1 (de) Übertragungssystem
FI102340B1 (fi) Tiedonsiirtomenetelmä ja radiojärjestelmä
FI942524A (fi) Menetelmä tilaajapäätelaitteiden synkronisoimiseksi, tukiasema sekä tilaajapäätelaite
MY145503A (en) Quasi-orthogonal multiplexing for multi-carrier communication system
CA2331997A1 (en) Random access in a mobile telecommunications system
KR940017330A (ko) 통신방법 및 시스템
MY172741A (en) Radio transmission system and method, and transmitter apparatus and receiver apparatus used in the radio transmission system
GR3035197T3 (en) Method for communicating with and/or for observing and/or localizing objects and module used thereby
BR9608879A (pt) Sistema de comunicação de acesso múltiplo por divisão de frequéncia e código ortogonal duplo
MY147045A (en) Secondary synchronization sequences for cell group detection in a cellular communications sysytem
DE69825567D1 (de) Mehrbenutzernachrichtenübertragungssystemarchitektur mit verteilten sendern
WO2004075470A3 (en) Controlled superposition coding in multi-user communication systems
ES2166842T3 (es) Sistemas de radio movil celular de acceso multiple por division de codigo.
WO2005091518A3 (en) Signal acquisition in peer-to-peer spread-spectrum communications
SG151071A1 (en) Mobile communication system in multi-carrier cdma scheme using short code and long code
WO1999053628A3 (en) Data communication and radio system
MX2021003378A (es) Coexistencia de señales de referencia en redes de comunicación inalámbrica.
ES2170510T3 (es) Procedimiento y dispositivo de recepcion para la transmision de datos.
ATE281051T1 (de) Makrodiversitätsverfahren und system mit signalkombination in der basisstation
DE60020610D1 (de) Umkehr-synschronisierungsverfahren in einem drahtlosen system
EP4277417A3 (en) Base station, terminal, transmission method, and reception method
DK1041765T3 (da) Multiplex-fremgangsmåde for multicarrier-signaler i et mesh-netværk
EP0989696A4 (en) METHOD FOR ASSIGNING AND TRANSMITTING SIGNALING SIGNALS IN A DIRECT CONNECTING STRIP MOBILE-CDMA MESSAGE TRANSMISSION SYSTEM, MOBILE MESSAGE TRANSMISSION SYSTEM AND TRANSMITTER, RECEIVER AND TRANSMITTER / RECEIVER OF A MOBILE MESSAGE TRANSMISSION SYSTEM