DE69329294D1 - Hierarchisches synchronisierungsverfahren und telekommunikationssystem mit nachrichtenbasierter synchronisierung - Google Patents

Hierarchisches synchronisierungsverfahren und telekommunikationssystem mit nachrichtenbasierter synchronisierung

Info

Publication number
DE69329294D1
DE69329294D1 DE69329294T DE69329294T DE69329294D1 DE 69329294 D1 DE69329294 D1 DE 69329294D1 DE 69329294 T DE69329294 T DE 69329294T DE 69329294 T DE69329294 T DE 69329294T DE 69329294 D1 DE69329294 D1 DE 69329294D1
Authority
DE
Germany
Prior art keywords
synchronization
message
telecommunication system
hierarchical
synchronization method
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 - Fee Related
Application number
DE69329294T
Other languages
English (en)
Other versions
DE69329294T2 (de
Inventor
Jukka Kainulainen
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.)
Nokia Oyj
Original Assignee
Nokia Networks Oy
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 Nokia Networks Oy filed Critical Nokia Networks Oy
Publication of DE69329294D1 publication Critical patent/DE69329294D1/de
Application granted granted Critical
Publication of DE69329294T2 publication Critical patent/DE69329294T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Small-Scale Networks (AREA)
DE69329294T 1992-11-09 1993-11-08 Hierarchisches synchronisierungsverfahren und telekommunikationssystem mit nachrichtenbasierter synchronisierung Expired - Fee Related DE69329294T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI925072A FI91689C (fi) 1992-11-09 1992-11-09 Hierarkkinen synkronointimenetelmä sekä sanomapohjaista synkronointia käyttävä tietoliikennejärjestelmä
PCT/FI1993/000459 WO1994011966A1 (en) 1992-11-09 1993-11-08 A hierarchical synchronization method and a telecommunications system employing message-based synchronization

Publications (2)

Publication Number Publication Date
DE69329294D1 true DE69329294D1 (de) 2000-09-28
DE69329294T2 DE69329294T2 (de) 2001-02-22

Family

ID=8536180

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69329294T Expired - Fee Related DE69329294T2 (de) 1992-11-09 1993-11-08 Hierarchisches synchronisierungsverfahren und telekommunikationssystem mit nachrichtenbasierter synchronisierung

Country Status (7)

Country Link
US (1) US5734687A (de)
EP (1) EP0667997B1 (de)
AU (1) AU5422394A (de)
DE (1) DE69329294T2 (de)
DK (1) DK0667997T3 (de)
FI (1) FI91689C (de)
WO (1) WO1994011966A1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI95978C (fi) * 1994-03-01 1996-04-10 Nokia Telecommunications Oy Hierarkkinen synkronointimenetelmä
GB2301991B (en) * 1995-06-06 1999-06-30 Plessey Telecomm SDH Network
FI98582C (fi) * 1995-06-28 1997-07-10 Nokia Telecommunications Oy Varmennetun väylän toteutus tietoliikenneverkossa
FI98583C (fi) * 1995-06-28 1997-07-10 Nokia Telecommunications Oy Varmennetun väylän toteutus tietoliikenneverkossa
JP3420898B2 (ja) * 1996-10-04 2003-06-30 富士通株式会社 シンクロナイゼーションメッセージ受信処理装置
FI103307B (fi) * 1997-02-11 1999-05-31 Nokia Telecommunications Oy Tietoliikenneverkon synkronointi
US6411598B1 (en) 1997-03-12 2002-06-25 Mci Communications Corporation Signal conversion for fault isolation
US6496476B1 (en) 1997-03-12 2002-12-17 Worldcom, Inc. System and method for restricted reuse of intact portions of failed paths
ATE341903T1 (de) 1997-03-12 2006-10-15 Alcatel Network Syst Verfahren und system zur verteilter wiederherstellung eines fernmeldenetzes
US6044064A (en) * 1997-03-28 2000-03-28 Mci Communications Corporation Method and system therefor of confining path verification signals within a distributed restoration network
US6044084A (en) * 1997-10-06 2000-03-28 Hughes Electronics Corporation Collision detection for packet-switched multiple-path communication system
US6404733B1 (en) 1998-09-08 2002-06-11 Mci Worldcom, Inc. Method of exercising a distributed restoration process in an operational telecommunications network
US6294991B1 (en) 1998-09-08 2001-09-25 Mci Communications Corporation Method and system therefor for ensuring a true activation of distributed restoration in a telecommunications network
US6418117B1 (en) 1998-09-08 2002-07-09 Mci Worldcom, Inc. Out of band messaging in a DRA network
US6337846B1 (en) 1998-09-08 2002-01-08 Mci Worldcom, Inc. Quantification of the quality of spare links in a telecommunications network
US6714563B1 (en) * 1999-04-26 2004-03-30 Cisco Technology, Inc. Network clock synchronization scheme
US6813240B1 (en) 1999-06-11 2004-11-02 Mci, Inc. Method of identifying low quality links in a telecommunications network
IL137086A (en) * 2000-06-29 2004-06-20 Enavis Networks Ltd Method and system for fast synchronization of multiframe structures using periodic signatures
US20040003007A1 (en) * 2002-06-28 2004-01-01 Prall John M. Windows management instrument synchronized repository provider
CN100369426C (zh) * 2002-11-22 2008-02-13 中兴通讯股份有限公司 在同步数字传送网中判断时钟源成环的方法
US7656804B2 (en) * 2004-08-16 2010-02-02 Motorola, Inc. Method and apparatus for operating an AD-HOC communication system
US7912094B2 (en) * 2006-12-13 2011-03-22 Honeywell International Inc. Self-checking pair-based master/follower clock synchronization
WO2010000110A1 (zh) * 2008-07-03 2010-01-07 中兴通讯股份有限公司 分层无线接入系统的同步、调度、网络管理和频率分配方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2986723A (en) * 1960-02-26 1961-05-30 Bell Telephone Labor Inc Synchronization in a system of interconnected units
US4347490A (en) * 1981-03-06 1982-08-31 Prem Magnetics, Inc. Low profile transformer
US4701756A (en) * 1985-09-10 1987-10-20 Burr William E Fault-tolerant hierarchical network
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
DE3833940A1 (de) * 1988-09-22 1990-04-05 Siemens Ag Verfahren zur neusynchronisation einer vermittlungsstelle in einem fernmeldenetz
DE3943052A1 (de) * 1989-12-28 1991-07-04 Philips Patentverwaltung Hierarchisches synchronisationsverfahren fuer vermittlungsstellen eines fernmeldenetzes
JPH0575635A (ja) * 1991-09-12 1993-03-26 Hitachi Ltd ネツトワーク網同期管理システムおよび管理方式

Also Published As

Publication number Publication date
FI925072A0 (fi) 1992-11-09
FI91689B (fi) 1994-04-15
DK0667997T3 (da) 2000-09-18
EP0667997A1 (de) 1995-08-23
AU5422394A (en) 1994-06-08
WO1994011966A1 (en) 1994-05-26
DE69329294T2 (de) 2001-02-22
EP0667997B1 (de) 2000-08-23
FI91689C (fi) 1994-07-25
US5734687A (en) 1998-03-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee