DE69228370T2 - Verfahren zur synchronisierung eines synchronen datenkommunikationsnetzwerkes und kommunikationsvorrichtung zum gebrauch im synchronen datenkommunikationsnetzwerk - Google Patents

Verfahren zur synchronisierung eines synchronen datenkommunikationsnetzwerkes und kommunikationsvorrichtung zum gebrauch im synchronen datenkommunikationsnetzwerk

Info

Publication number
DE69228370T2
DE69228370T2 DE69228370T DE69228370T DE69228370T2 DE 69228370 T2 DE69228370 T2 DE 69228370T2 DE 69228370 T DE69228370 T DE 69228370T DE 69228370 T DE69228370 T DE 69228370T DE 69228370 T2 DE69228370 T2 DE 69228370T2
Authority
DE
Germany
Prior art keywords
synchronous data
communication network
data communication
synchronizing
communication device
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
DE69228370T
Other languages
English (en)
Other versions
DE69228370D1 (de
Inventor
Yasuko Komuro
Noboru Yajima
Hiroshi Yoshida
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16527487&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69228370(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69228370D1 publication Critical patent/DE69228370D1/de
Publication of DE69228370T2 publication Critical patent/DE69228370T2/de
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
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0647—Synchronisation among TDM nodes
    • 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
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0641—Change of the master or reference, e.g. take-over or failure of the master
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0028—Local loop
    • H04J2203/0039—Topology
    • H04J2203/0042—Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0057—Operations, administration and maintenance [OAM]
    • H04J2203/006—Fault tolerance and recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0089—Multiplexing, e.g. coding, scrambling, SONET

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Small-Scale Networks (AREA)
DE69228370T 1991-08-19 1992-08-18 Verfahren zur synchronisierung eines synchronen datenkommunikationsnetzwerkes und kommunikationsvorrichtung zum gebrauch im synchronen datenkommunikationsnetzwerk Expired - Lifetime DE69228370T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP20668991 1991-08-19
PCT/JP1992/001042 WO1993004545A1 (en) 1991-08-19 1992-08-18 Method for synchronizing synchronous data communication network, and communication device used in the network

Publications (2)

Publication Number Publication Date
DE69228370D1 DE69228370D1 (de) 1999-03-18
DE69228370T2 true DE69228370T2 (de) 1999-06-24

Family

ID=16527487

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69228370T Expired - Lifetime DE69228370T2 (de) 1991-08-19 1992-08-18 Verfahren zur synchronisierung eines synchronen datenkommunikationsnetzwerkes und kommunikationsvorrichtung zum gebrauch im synchronen datenkommunikationsnetzwerk

Country Status (5)

Country Link
US (1) US5386418A (de)
EP (1) EP0553360B1 (de)
JP (1) JP3235730B2 (de)
DE (1) DE69228370T2 (de)
WO (1) WO1993004545A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI92358C (fi) * 1992-11-09 1994-10-25 Nokia Telecommunications Oy Hierarkkinen synkronointimenetelmä sekä sanomapohjaista synkronointia käyttävä tietoliikennejärjestelmä
US5388102A (en) * 1993-07-01 1995-02-07 At&T Corp. Arrangement for synchronizing a plurality of base stations
FI95975C (fi) * 1994-02-25 1996-04-10 Nokia Telecommunications Oy Hierarkkinen synkronointimenetelmä
FI95978C (fi) * 1994-03-01 1996-04-10 Nokia Telecommunications Oy Hierarkkinen synkronointimenetelmä
US5594739A (en) * 1995-11-01 1997-01-14 Telefonaktiebolaget Lm Ericsson System and method for rapid selection of synchronization sources in a mobile telecommunications network
DE19542230C2 (de) * 1995-11-13 1998-08-27 Siemens Ag Verfahren zur Auswahl von verketteten Signalen aus Empfangssignalen der Synchron-Digital-Hierarchie
US5953333A (en) * 1996-07-01 1999-09-14 Alcatel Usa Sourcing, L.P. Method and system for overhead controlled switching
FI104593B (fi) * 1996-09-30 2000-02-29 Nokia Networks Oy Hierarkkinen synkronointimenetelmä
US5801783A (en) * 1996-10-31 1998-09-01 Lucent Technologies Inc. Remote accurate frequency generation using a numerically controlled oscillator
FI102442B1 (fi) * 1997-02-19 1998-11-30 Nokia Telecommunications Oy Tietoliikenneverkon synkronointi
US6721508B1 (en) * 1998-12-14 2004-04-13 Tellabs Operations Inc. Optical line terminal arrangement, apparatus and methods
US6714563B1 (en) * 1999-04-26 2004-03-30 Cisco Technology, Inc. Network clock synchronization scheme

Family Cites Families (8)

* 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
DE3643002A1 (de) * 1986-12-17 1988-06-30 Philips Patentverwaltung Schaltungsanordnung zur synchronisation von einrichtungen in den vermittlungs- und verstaerkerstellen eines zeitmultiplex-uebertragungssystems
JPS6422137A (en) * 1987-07-17 1989-01-25 Hitachi Ltd High reliability system for network system
JPH01208047A (ja) * 1988-02-16 1989-08-22 Fujitsu Ltd クロック供給方式
JPH0621330B2 (ja) * 1988-06-15 1994-03-23 株式会社日立製作所 連続溶融金属めっき装置及びその使用方法
JPH01316043A (ja) * 1988-06-16 1989-12-20 Fujitsu Ltd 通信システムの同期クロック供給制御方式
JPH02100440A (ja) * 1988-10-06 1990-04-12 Nec Corp ループ式伝送装置の親局設定方式
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
EP0553360A4 (de) 1994-03-21
EP0553360A1 (de) 1993-08-04
JP3235730B2 (ja) 2001-12-04
US5386418A (en) 1995-01-31
WO1993004545A1 (en) 1993-03-04
EP0553360B1 (de) 1999-02-03
DE69228370D1 (de) 1999-03-18

Similar Documents

Publication Publication Date Title
DE69429034D1 (de) Verfahren und Gerät zur Erstellung und zum Erhalten der Rahmensynchronisation in einer Satelliten Kommunikationsanordnung
DE69229473D1 (de) Verfahren und vorrichtung zum puffern von daten in nachrichtennetzwerkstationen
GB2266642B (en) Data collection network apparatus and method
DE69330791T2 (de) Verfahren und Einrichtung zum Datentransfer in ein ATM-Netz
KR960009831B1 (en) Method and apparatus utilizing multi-dimension data icons
DE69532254D1 (de) Verfahren und Gerät zur Kommunikationsverschlüsselung in einem Datennetz
DE69733592D1 (de) Verfahren und Gerät zur Kommunikationssynchronisation in einer Satellitenkommunikationsanordnung
DE1127450T1 (de) System und verfahren zum gebrauch einer in voraus bezahlten karte
EP0455922A3 (en) Method and apparatus for deriving mirrored unit state when re-initializing a system
GB2286946B (en) Apparatus and method for configuring a computer system and a modem for use on different telephone networks
EP0539313A3 (en) Method and apparatus for simulating i/o devices
IL100871A0 (en) Apparatus and method for clock rate matching in independent networks
FI951095A (fi) Laite ja menetelmä informaation siirtämiseksi viestintäverkossa
DE69233283D1 (de) Verfahren und vorrichtung zur synchronisierung eines ersten und zweiten datenratenwandlers
DE69104994D1 (de) Apparatus und verfahren zum schneiden einer bahn.
DE69228370T2 (de) Verfahren zur synchronisierung eines synchronen datenkommunikationsnetzwerkes und kommunikationsvorrichtung zum gebrauch im synchronen datenkommunikationsnetzwerk
DE69406151D1 (de) Einrichtung zur Synchronisierung eines lokalen Trägers, in OFDM-Systemen
DE69910558D1 (de) Verfahren und vorrichtungen zur synchronisierung in einem kommunikationsnetz
DE69310800D1 (de) Verfahren und Vorrichtung zum Anrufen eines Handtelefons im Funktelefonnetz
DE69503251T2 (de) Vorrichtung und verfahren zum einbringen eines schlitzes in eine unterirdische formation
DE19882099T1 (de) Verfahren und Vorrichtung zum Registrieren einer entfernten Einheit in einem Kommunikationssystem
GB2253537B (en) Apparatus and method for managing memos
DE69213496D1 (de) Verfahren zur kohärenten PSK-Demodulation und Einrichtung zu dessen Ausführung
DE69131363T2 (de) Verfahren und Vorrichtung für Datenübertragung und Verbindungsaufbau in einem Nachrichtennetz
DE69205055T2 (de) Verfahren und Vorrichtung zum Anbringen von Etiketten in einer Form.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
R071 Expiry of right

Ref document number: 553360

Country of ref document: EP