BR9713615A - Sistema de telefone celular tdma, rede de comunicações celulares, processos de controle de uma rede de comunicações celulares e de um sistema de telefone celular tdma, controlador para um sistema de telefone celular tdma, e, estação base para um sistema de telefone celular tdma - Google Patents

Sistema de telefone celular tdma, rede de comunicações celulares, processos de controle de uma rede de comunicações celulares e de um sistema de telefone celular tdma, controlador para um sistema de telefone celular tdma, e, estação base para um sistema de telefone celular tdma

Info

Publication number
BR9713615A
BR9713615A BR9713615-8A BR9713615A BR9713615A BR 9713615 A BR9713615 A BR 9713615A BR 9713615 A BR9713615 A BR 9713615A BR 9713615 A BR9713615 A BR 9713615A
Authority
BR
Brazil
Prior art keywords
phone system
tdma
cellular
communications network
cellular phone
Prior art date
Application number
BR9713615-8A
Other languages
English (en)
Inventor
Jan Erik S Derkvist
Peter Wahlstr M Lars
Original Assignee
Ericsson Telefon Ab L M
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 Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9713615A publication Critical patent/BR9713615A/pt

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
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H04B7/2687—Inter base stations synchronisation
    • H04B7/2693—Centralised synchronisation, i.e. using external universal time reference, e.g. by using a global positioning system [GPS] or by distributing time reference over the wireline network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0605—Special codes used as synchronising signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

"SISTEMA DE TELEFONE CELULAR TDMA, REDE DE COMUNICAçõES CELULARES, PROCESSOS DE CONTROLE DE UMA REDE DE COMUNICAçõES CELULARES E DE UM SISTEMA DE TELEFONE CELULAR TDMA, CONTROLADOR PARA UM SISTEMA DE TELEFONE CELULAR TDMA, E, ESTAçãO BASE PARA UM SISTEMA DE TELEFONE CELULAR TDMA". Uma rede celular é controlada de tal forma que fendas de tempo de transmissões das estações base com a mesma frequência de operação são sincronizadas. Além disso, estações base adjacentes usando a mesma frequência são controladas de forma que, em qualquer dado tempo, elas estão transmitido diferentes palavras de sincronização.
BR9713615-8A 1996-12-23 1997-12-18 Sistema de telefone celular tdma, rede de comunicações celulares, processos de controle de uma rede de comunicações celulares e de um sistema de telefone celular tdma, controlador para um sistema de telefone celular tdma, e, estação base para um sistema de telefone celular tdma BR9713615A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9626680A GB2320650B (en) 1996-12-23 1996-12-23 Telecommunications systems
PCT/EP1997/007126 WO1998028863A1 (en) 1996-12-23 1997-12-18 Synchronisation of base stations in a cellular telecommunications system

Publications (1)

Publication Number Publication Date
BR9713615A true BR9713615A (pt) 2000-04-11

Family

ID=10804893

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9713615-8A BR9713615A (pt) 1996-12-23 1997-12-18 Sistema de telefone celular tdma, rede de comunicações celulares, processos de controle de uma rede de comunicações celulares e de um sistema de telefone celular tdma, controlador para um sistema de telefone celular tdma, e, estação base para um sistema de telefone celular tdma

Country Status (6)

Country Link
US (1) US6516199B1 (pt)
AU (1) AU5760298A (pt)
BR (1) BR9713615A (pt)
CA (1) CA2275723A1 (pt)
GB (1) GB2320650B (pt)
WO (1) WO1998028863A1 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320650B (en) * 1996-12-23 2001-09-26 Ericsson Telefon Ab L M Telecommunications systems
FR2784257B1 (fr) * 1998-10-02 2000-12-08 Thomson Csf Procede de transmission de donnees entre un serveur et des mobiles au sein d'un systeme de transmission de donnees
KR100898446B1 (ko) * 2001-07-13 2009-05-21 톰슨 라이센싱 셀룰러 시스템에서의 디지털 오디오/비디오 브로드캐스트
DE10331311B4 (de) * 2003-07-10 2008-02-07 Siemens Ag Verfahren zur Synchronisation eines in Funkzellen aufgeteilten Funkkommunikationssystems
FR2868656B1 (fr) * 2004-04-06 2006-06-02 Wavecom Sa Signal de radiotelephonie cellulaire permettant une synchronisation au niveau d'une entite d'un canal supplementaire par numerotation des symboles, procede, terminal et station de base correspondants
US8483616B1 (en) * 2005-11-01 2013-07-09 At&T Intellectual Property Ii, L.P. Non-interference technique for spatially aware mobile ad hoc networking
DE102006030977A1 (de) * 2006-07-03 2008-02-07 Deutsche Thomson-Brandt Gmbh Datenübertragungsverfahren und Gerät zur Durchführung des Verfahrens
US7848363B2 (en) * 2008-05-15 2010-12-07 Motorola, Inc. System and method for receiving call signals in a communication system
US8279991B2 (en) 2008-10-03 2012-10-02 Motorola Solutions, Inc. Method of efficiently synchronizing to a desired timeslot in a time division multiple access communication system
US9118428B2 (en) 2009-11-04 2015-08-25 At&T Intellectual Property I, L.P. Geographic advertising using a scalable wireless geocast protocol
US10016684B2 (en) 2010-10-28 2018-07-10 At&T Intellectual Property I, L.P. Secure geographic based gaming
US9161158B2 (en) 2011-06-27 2015-10-13 At&T Intellectual Property I, L.P. Information acquisition using a scalable wireless geocast protocol
US9319842B2 (en) 2011-06-27 2016-04-19 At&T Intellectual Property I, L.P. Mobile device configured point and shoot type weapon
US8744419B2 (en) 2011-12-15 2014-06-03 At&T Intellectual Property, I, L.P. Media distribution via a scalable ad hoc geographic protocol
US9071451B2 (en) 2012-07-31 2015-06-30 At&T Intellectual Property I, L.P. Geocast-based situation awareness
US9660745B2 (en) 2012-12-12 2017-05-23 At&T Intellectual Property I, L.P. Geocast-based file transfer

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2607433C3 (de) * 1976-02-24 1980-01-17 Siemens Ag Digitaler Korrelationsempfänger
NL8003477A (nl) * 1980-06-16 1982-01-18 Philips Nv Inrichting voor het verwerken van serieele informatie welke is voorzien van synchronisatiewoorden.
DE3151251A1 (de) * 1981-12-24 1983-07-07 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und schaltungsanordnung zur wiedergabe digital codierter signale
US4742514A (en) * 1986-03-25 1988-05-03 Motorola, Inc. Method and apparatus for controlling a TDM communication device
US4754450A (en) * 1986-03-25 1988-06-28 Motorola, Inc. TDM communication system for efficient spectrum utilization
DE3685216D1 (de) * 1986-08-14 1992-06-11 Standard Elektrik Lorenz Ag Digitales zellenfunksystem.
NZ232223A (en) * 1989-01-27 1993-03-26 British Telecomm Alternate burst communication for cordless phones re-established after channel failure
EP0439630B1 (en) * 1989-08-25 1996-02-07 Nippon Telegraph And Telephone Corporation Wireless channel switch control method
US5228029A (en) * 1990-02-27 1993-07-13 Motorola, Inc. Cellular tdm communication system employing offset frame synchronization
JP3034282B2 (ja) * 1990-07-12 2000-04-17 株式会社東芝 非同期型移動無線通信システム
US5199031A (en) * 1990-08-31 1993-03-30 Telefonaktiebolaget L M Ericsson Method and system for uniquely identifying control channel time slots
SE467437B (sv) * 1990-11-07 1992-07-13 Ericsson Telefon Ab L M Foerfarande att undvika interferens mellan ett foersta och ett andra meddelande i ett mobiltelefonsystem
US5257399A (en) * 1990-11-28 1993-10-26 Telefonaktiebolaget L M Ericsson Multiple access handling in a cellular communications system
SE468266B (sv) * 1991-04-12 1992-11-30 Ericsson Telefon Ab L M Foerfarande att synkronisera en radiomottagare till en inkommande radiosignal
US5613211A (en) * 1992-10-07 1997-03-18 Nippon Steel Corporation Method of establishing inter base-station synchronization and mobile radio communicaton system using the method
SE470037C (sv) * 1992-10-27 1995-04-10 Ericsson Telefon Ab L M Anordning vid mobila telekommunikationssystem för att möjliggöra synkronisering av basstationernas sändare
US5343498A (en) 1993-03-08 1994-08-30 General Electric Company Sample timing selection and frequency offset correction for U.S. digital cellular mobile receivers
FR2724509B1 (fr) * 1994-09-12 1996-11-22 Alcatel Mobile Comm France Systeme de radiocommunication cellulaire, notamment avec des mobiles, et dispositif d'emission ou de reception correspondant
US5835851A (en) * 1995-01-19 1998-11-10 Ericsson Inc. Method and apparatus for echo reduction in a hands-free cellular radio using added noise frames
US5793772A (en) * 1995-11-29 1998-08-11 Motorola, Inc. Method and apparatus for synchronizing timing of components of a telecommunication system
US5684794A (en) * 1996-01-25 1997-11-04 Hazeltine Corporation Validation of subscriber signals in a cellular radio network
US6023477A (en) * 1996-12-18 2000-02-08 Ericsson Inc. System and method of time and frequency synchronization in a radiocommunication system
GB2320650B (en) * 1996-12-23 2001-09-26 Ericsson Telefon Ab L M Telecommunications systems

Also Published As

Publication number Publication date
GB2320650B (en) 2001-09-26
CA2275723A1 (en) 1998-07-02
GB2320650A (en) 1998-06-24
US6516199B1 (en) 2003-02-04
AU5760298A (en) 1998-07-17
GB9626680D0 (en) 1997-02-12
WO1998028863A1 (en) 1998-07-02

Similar Documents

Publication Publication Date Title
BR9713615A (pt) Sistema de telefone celular tdma, rede de comunicações celulares, processos de controle de uma rede de comunicações celulares e de um sistema de telefone celular tdma, controlador para um sistema de telefone celular tdma, e, estação base para um sistema de telefone celular tdma
ATE168841T1 (de) Synchronisation einer telekommunikationsverbindung in einem mobilen kommunikationssystem
BR0007640A (pt) Método e aparelho para controle de chaveamento de telefonia remoto
BR9910769A (pt) Sistema radiotelefÈnico celular que se comunica com uma pluralidade de radiotelefones celulares, e, processos de controlar um sistema radiorelefÈnico celular, e de inicializar um sistema radiotelefÈnico celular
AU4835999A (en) Cellular communication system with common channel soft handoff and associated method
SE9601818L (sv) Selektiv återsynkronisering i ett digitalt cellulärt kommunikationssystem
EP0926905A4 (en) MOBILE COMMUNICATION SYSTEM
WO1996038991A3 (de) Mobilfunkgerät mit unter brechungsfreiem weiterreichen zwischen unsynchronisierten basisstationen
CA2232693A1 (en) A method for performing handover and roaming in a radio communication environment
AUPM593694A0 (en) Underground microcellular communications network
AR003192A1 (es) Una disposicion celular de comunicaciones para proveer una comunicacion con, por lo menos, una unidad movil y un metodo para la transferencia de llamada en una disposicion de comunicaciones inalambrica, entre una disposicion de telefono celular de acceso multiple por division de codigo y una disposicion de comunicaciones de tecnologia de acceso alternativo, que utiliza dicha disposicion celular
WO2002065707A3 (en) Methods and systems for clock synchronization across wireless networks
AR003029A1 (es) Un aparato mejorado para seleccionar y suministrar en comunicacion celular sistemas de comunicacion de acceso multiple por division de codigo y analogo; yun metodo para suministrar comunicaciones moviles acordes a dichos sistemas que utiliza dicho aparato.
SE9503285L (sv) Förfarande och anordning för ökning av spektrumeffektiviteten
EP0991288A3 (en) Method and system for overhead message updates
BR9805549A (pt) Método de controlar acesso aleatório em um sistema de comunicação móvel e sistema de comunicação móvel
BR0306642A (pt) Método e estação móvel para controlar a comunicação através de um enlace de rádio
GB0124958D0 (en) A handover message
NO307537B1 (no) FremgangsmÕte og system for utveksling av informasjon i et celleoppdelt radiotelefoninett, samt tilsvarende mobil stasjon i stasjonsstyring
FI933630A (fi) Menetelmä solukkoradiojärjestelmän tietoliikenneverkon toiminnan varmistamiseksi sekä tukiasemajärjestely
AU2003293988A1 (en) Controlling reconfiguration in a cellular communication system
NO993005D0 (no) FremgangsmÕte for adgangskontroll i et interferensbegrenset, celledelt radionett
DE60024454D1 (de) Unabhängige synchronisation von ppp verbindungen an um und rm schnittstellen
BR9712192A (pt) Unidade de telefone portátil tdma de modo duplo e de telefone portátil tdma para comunicação com as estações base em uma primeira faixa e uma segunda faixa, e, processo que permite a operação de modo duplo de uma unidade de telefone portátil tdma.
AU4162496A (en) Single site, split location trunked radio communications system

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements