ES2116992T3 - Procedimiento destinado a asegurar la permanencia de la sincronizacion de los nudos de una red privada de telecomunicaciones con el mejor de los relojes disponibles y red correspondiente. - Google Patents

Procedimiento destinado a asegurar la permanencia de la sincronizacion de los nudos de una red privada de telecomunicaciones con el mejor de los relojes disponibles y red correspondiente.

Info

Publication number
ES2116992T3
ES2116992T3 ES91121080T ES91121080T ES2116992T3 ES 2116992 T3 ES2116992 T3 ES 2116992T3 ES 91121080 T ES91121080 T ES 91121080T ES 91121080 T ES91121080 T ES 91121080T ES 2116992 T3 ES2116992 T3 ES 2116992T3
Authority
ES
Spain
Prior art keywords
clock
nodes
network
permanence
knots
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
ES91121080T
Other languages
English (en)
Inventor
Christine Cordonnier
Raymond Gass
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel Alsthom Compagnie Generale dElectricite
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 Alcatel Alsthom Compagnie Generale dElectricite filed Critical Alcatel Alsthom Compagnie Generale dElectricite
Application granted granted Critical
Publication of ES2116992T3 publication Critical patent/ES2116992T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0679—Clock or time synchronisation in a network by determining clock distribution path in a network

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

CADA NUDO (2) DE LA RED ESTA NORMALMENTE SINCRONIZADO POR SEÑALES DE RELOJ DE ORIGEN EXTERNO QUE LE LLEGAN POR UNA ENTRADA DE ENLACE DE TRANSMISION NUMERICA PUNTO POR PUNTO (3). DOS DE LAS ENTRADAS (P1, P2) DE NUDO SON PRESELECCIONADOS COMO ENTRADAS DE RELOJ PILOTO PRINCIPAL Y DE SOCORRO Y CADA NUDO ESTA PRESELECCIONADO PARA SER O NO SUMINISTRADOR POTENCIAL DE SEÑALES DE RELOJ RESPECTO DE CADA UNO DE LOS NUDOS A LOS QUE ESTA CONECTADO, A TRAVES DE UNA DE LAS ENTRADAS DE RELOJ PILOTO, DETERMINANDO LOS NUDOS ASI CONECTADOS DE LA RED PRIVADA UN ARBOL DE SINCRONIZACION. EN CASO DE PERDIDA DE RELOJ, UN INTERCAMBIO DE INFORMACION SE PONE EN MARCHA ENTRE NUDOS ADYACENTES PARA RECONFIGURAR EL ARBOL DE SINCRONIZACION QUE ESTOS NUDOS CONSTITUYEN, DE MANERA QUE CADA UNO DE ELLOS SE SINCRONICE SOBRE EL MEJOR DE LOS RELOJES DISPONIBLES.
ES91121080T 1990-12-11 1991-12-09 Procedimiento destinado a asegurar la permanencia de la sincronizacion de los nudos de una red privada de telecomunicaciones con el mejor de los relojes disponibles y red correspondiente. Expired - Lifetime ES2116992T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR909015496A FR2670345B1 (fr) 1990-12-11 1990-12-11 Procede destine a assurer la permanence de la synchronisation des nóoeuds d'un reseau prive de telecommunications sur la meilleure des horloges disponibles et reseau correspondant.

Publications (1)

Publication Number Publication Date
ES2116992T3 true ES2116992T3 (es) 1998-08-01

Family

ID=9403115

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91121080T Expired - Lifetime ES2116992T3 (es) 1990-12-11 1991-12-09 Procedimiento destinado a asegurar la permanencia de la sincronizacion de los nudos de una red privada de telecomunicaciones con el mejor de los relojes disponibles y red correspondiente.

Country Status (8)

Country Link
US (1) US5475717A (es)
EP (1) EP0490315B1 (es)
JP (1) JP3130989B2 (es)
AT (1) ATE166757T1 (es)
AU (1) AU656343B2 (es)
DE (1) DE69129490T2 (es)
ES (1) ES2116992T3 (es)
FR (1) FR2670345B1 (es)

Families Citing this family (28)

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Publication number Priority date Publication date Assignee Title
FI92126C (fi) * 1992-11-09 1994-09-26 Nokia Telecommunications Oy Verkkojärjestely
FI95977C (fi) * 1994-02-25 1996-04-10 Nokia Telecommunications Oy Verkkojärjestely
FI95976C (fi) * 1994-02-25 1996-04-10 Nokia Telecommunications Oy Verkkojärjestely
FI95978C (fi) * 1994-03-01 1996-04-10 Nokia Telecommunications Oy Hierarkkinen synkronointimenetelmä
FI98770C (fi) * 1994-03-01 1997-08-11 Nokia Telecommunications Oy Hierarkkinen synkronointimenetelmä
AU1974795A (en) * 1994-03-03 1995-09-18 Proxim, Inc. Frequency hopping medium access control protocol
US6292508B1 (en) 1994-03-03 2001-09-18 Proxim, Inc. Method and apparatus for managing power in a frequency hopping medium access control protocol
DE4408852C1 (de) * 1994-03-16 1994-11-17 Ant Nachrichtentech Verfahren zur Bereitstellung eines Rahmentaktes sowie Anordnung und Anwendung
JPH07336784A (ja) * 1994-06-08 1995-12-22 Toshiba Corp クロック同期装置
US5720036A (en) * 1996-01-05 1998-02-17 Network Imaging Corporation Enterprise multimedia data processing system and method using scalable object-based architecture
FI103307B (fi) 1997-02-11 1999-05-31 Nokia Telecommunications Oy Tietoliikenneverkon synkronointi
FI102442B (fi) * 1997-02-19 1998-11-30 Nokia Telecommunications Oy Tietoliikenneverkon synkronointi
JPH11122207A (ja) * 1997-10-14 1999-04-30 Fujitsu Ltd 伝送装置および同期ネットワークにおける信号伝送方法
US6111881A (en) * 1997-12-29 2000-08-29 Nortel Networks Corporation Signaling protocol for rerouting ATM connections in PNNI environments
US6571111B1 (en) * 1998-08-05 2003-05-27 Compaq Computer Corporation Method and apparatus for reducing battery power consumption of transceivers in a communications network using an external generated timing signal
JP3835945B2 (ja) * 1999-02-19 2006-10-18 富士通株式会社 ディジタルデータの伝送網におけるシステムクロック再生方法および装置
US6714563B1 (en) * 1999-04-26 2004-03-30 Cisco Technology, Inc. Network clock synchronization scheme
FR2793623B1 (fr) * 1999-05-11 2003-01-24 Canon Kk Procede et dispositif de controle de la synchronisation entre deux noeuds ni-1, ni d'un reseau
US6742048B1 (en) * 2000-07-10 2004-05-25 Advanced Micro Devices, Inc. Multilevel network for distributing trusted time and delegating levels of trust regarding timekeeping
US7224984B2 (en) * 2000-08-15 2007-05-29 University Of Maryland, College Park Method, system and computer program product for positioning and synchronizing wireless communications nodes
DE10113260B4 (de) * 2001-03-16 2005-10-20 Siemens Ag Synchrones, getaktetes Kommunikationssystem mit Relativuhr und Verfahren zum Aufbau eines solchen Systems
US6930958B2 (en) * 2002-04-02 2005-08-16 Nate Goergen Method and apparatus for synchronizing timekeeping devices
US8437280B2 (en) * 2007-03-22 2013-05-07 Tr Technologies Inc. Distributed synchronous batch reconfiguration of a network
CN101309122B (zh) * 2007-05-17 2013-01-02 华为技术有限公司 时钟跟踪关系建立方法及时钟跟踪关系计算装置
DE102008039793A1 (de) * 2008-08-26 2010-03-04 Siemens Aktiengesellschaft Verfahren zur Taktsynchronisierung in einem Kommunikationsnetz und Kommunikationsnetz
WO2013188945A1 (en) 2012-06-18 2013-12-27 Research In Motion Limited Methods and apparatuses for processing time zone identifiers
WO2015010250A1 (en) * 2013-07-23 2015-01-29 Telefonaktiebolaget L M Ericsson (Publ) Clock recovery in a packet based network
CN117439692A (zh) * 2023-12-21 2024-01-23 安康鸿天科技股份有限公司 一种私有专网部署ims系统的时钟同步装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8516609D0 (en) * 1985-07-01 1985-08-07 Bicc Plc Data network synchronisation
US4736393A (en) * 1986-04-16 1988-04-05 American Telephone And Telegraph Co., At&T Information Systems, Inc. Distributed timing control for a distributed digital communication system
DE3629931A1 (de) * 1986-09-03 1988-03-10 Philips Patentverwaltung Hierarchisches synchronisationsverfahren und schaltungsanordnung fuer vermittlungsstellen eines vermaschten fernmeldenetzes
FR2638591B1 (fr) * 1988-11-03 1990-11-30 Telephonie Ind Commerciale Agencement de synchronisation pour autocommutateur numerique prive raccorde a un reseau rnis
US5068877A (en) * 1990-04-02 1991-11-26 At&T Bell Laboratories Method for synchronizing interconnected digital equipment

Also Published As

Publication number Publication date
DE69129490D1 (de) 1998-07-02
EP0490315A1 (fr) 1992-06-17
DE69129490T2 (de) 1998-09-24
FR2670345B1 (fr) 1994-09-30
JP3130989B2 (ja) 2001-01-31
ATE166757T1 (de) 1998-06-15
EP0490315B1 (fr) 1998-05-27
JPH04275737A (ja) 1992-10-01
US5475717A (en) 1995-12-12
AU8897591A (en) 1992-06-18
FR2670345A1 (fr) 1992-06-12
AU656343B2 (en) 1995-02-02

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