WO1993004545A1 - Method for synchronizing synchronous data communication network, and communication device used in the network - Google Patents

Method for synchronizing synchronous data communication network, and communication device used in the network Download PDF

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Publication number
WO1993004545A1
WO1993004545A1 PCT/JP1992/001042 JP9201042W WO9304545A1 WO 1993004545 A1 WO1993004545 A1 WO 1993004545A1 JP 9201042 W JP9201042 W JP 9201042W WO 9304545 A1 WO9304545 A1 WO 9304545A1
Authority
WO
WIPO (PCT)
Prior art keywords
synchronizing signal
network
office
signal sources
synchronizing
Prior art date
Application number
PCT/JP1992/001042
Other languages
English (en)
French (fr)
Inventor
Yasuko Komuro
Noboru Yayima
Hiroshi Yoshida
Original Assignee
Fujitsu Limited
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=WO1993004545(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fujitsu Limited filed Critical Fujitsu Limited
Priority to EP92917819A priority Critical patent/EP0553360B1/en
Priority to DE69228370T priority patent/DE69228370T2/de
Priority to JP50422493A priority patent/JP3235730B2/ja
Priority to US08/039,374 priority patent/US5386418A/en
Publication of WO1993004545A1 publication Critical patent/WO1993004545A1/ja

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)
  • Small-Scale Networks (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
PCT/JP1992/001042 1991-08-19 1992-08-18 Method for synchronizing synchronous data communication network, and communication device used in the network WO1993004545A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP92917819A EP0553360B1 (en) 1991-08-19 1992-08-18 Method for synchronizing synchronous data communication network, and communication device used in the synchronous data communication network
DE69228370T DE69228370T2 (de) 1991-08-19 1992-08-18 Verfahren zur synchronisierung eines synchronen datenkommunikationsnetzwerkes und kommunikationsvorrichtung zum gebrauch im synchronen datenkommunikationsnetzwerk
JP50422493A JP3235730B2 (ja) 1991-08-19 1992-08-18 同期データ通信網の同期方法および該同期データ通信網で用いられる通信装置
US08/039,374 US5386418A (en) 1991-08-19 1992-08-18 Method for synchronizing synchronous data communication network and communication device used in the synchronous data communication network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3/206689 1991-08-19
JP20668991 1991-08-19

Publications (1)

Publication Number Publication Date
WO1993004545A1 true WO1993004545A1 (en) 1993-03-04

Family

ID=16527487

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (5)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5388102A (en) * 1993-07-01 1995-02-07 At&T Corp. Arrangement for synchronizing a plurality of base stations
US5801783A (en) * 1996-10-31 1998-09-01 Lucent Technologies Inc. Remote accurate frequency generation using a numerically controlled oscillator

Families Citing this family (10)

* 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
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
FI102442B (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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Family Cites Families (4)

* 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
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
US5068877A (en) * 1990-04-02 1991-11-26 At&T Bell Laboratories Method for synchronizing interconnected digital equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0553360A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5388102A (en) * 1993-07-01 1995-02-07 At&T Corp. Arrangement for synchronizing a plurality of base stations
US5801783A (en) * 1996-10-31 1998-09-01 Lucent Technologies Inc. Remote accurate frequency generation using a numerically controlled oscillator

Also Published As

Publication number Publication date
JP3235730B2 (ja) 2001-12-04
EP0553360A1 (en) 1993-08-04
DE69228370D1 (de) 1999-03-18
US5386418A (en) 1995-01-31
EP0553360B1 (en) 1999-02-03
EP0553360A4 (en) 1994-03-21
DE69228370T2 (de) 1999-06-24

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