DE69731749D1 - Verfahren und vorrichtung zur synchronisation von zeitmarkierungen - Google Patents

Verfahren und vorrichtung zur synchronisation von zeitmarkierungen

Info

Publication number
DE69731749D1
DE69731749D1 DE69731749T DE69731749T DE69731749D1 DE 69731749 D1 DE69731749 D1 DE 69731749D1 DE 69731749 T DE69731749 T DE 69731749T DE 69731749 T DE69731749 T DE 69731749T DE 69731749 D1 DE69731749 D1 DE 69731749D1
Authority
DE
Germany
Prior art keywords
synchronizing time
time marks
marks
synchronizing
time
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
DE69731749T
Other languages
English (en)
Other versions
DE69731749T2 (de
Inventor
Pal Hellum
Kristin Aksnes
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of DE69731749D1 publication Critical patent/DE69731749D1/de
Publication of DE69731749T2 publication Critical patent/DE69731749T2/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
    • H04J3/0644—External master-clock
    • 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
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0664—Clock or time synchronisation among packet nodes using timestamps unidirectional timestamps
    • 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
    • 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
    • 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
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0673—Clock or time synchronisation among packet nodes using intermediate nodes, e.g. modification of a received timestamp before further transmission to the next packet node, e.g. including internal delay time or residence time into the packet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5603—Access techniques
    • H04L2012/5604—Medium of transmission, e.g. fibre, cable, radio
    • H04L2012/5608—Satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5649—Cell delay or jitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/565—Sequence integrity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5672—Multiplexing, e.g. coding, scrambling
    • H04L2012/5674—Synchronisation, timing recovery or alignment
DE69731749T 1996-09-16 1997-09-11 Verfahren und vorrichtung zur synchronisation von zeitmarkierungen Expired - Lifetime DE69731749T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9603368A SE507227C2 (sv) 1996-09-16 1996-09-16 Metod och anordning för synkronisering av tidsstämpling
SE9603368 1996-09-16
PCT/SE1997/001537 WO1998013969A1 (en) 1996-09-16 1997-09-11 Method and apparatus for synchronization of time stamping

Publications (2)

Publication Number Publication Date
DE69731749D1 true DE69731749D1 (de) 2004-12-30
DE69731749T2 DE69731749T2 (de) 2005-05-12

Family

ID=20403899

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69731749T Expired - Lifetime DE69731749T2 (de) 1996-09-16 1997-09-11 Verfahren und vorrichtung zur synchronisation von zeitmarkierungen

Country Status (8)

Country Link
US (1) US6104729A (de)
EP (1) EP0917780B1 (de)
JP (1) JP3820275B2 (de)
AU (1) AU4405697A (de)
CA (1) CA2265707A1 (de)
DE (1) DE69731749T2 (de)
SE (1) SE507227C2 (de)
WO (1) WO1998013969A1 (de)

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DE19725444A1 (de) * 1997-06-16 1998-12-17 Siemens Ag Verfahren zur Berechtigungsüberprüfung und Anordnung zum Durchführen dieses Verfahrens
US6370161B1 (en) * 1998-05-20 2002-04-09 Aspect Communications Time synchronization of distributed computer telephony communication applications in a computer network
US6611519B1 (en) * 1998-08-19 2003-08-26 Swxtch The Rules, Llc Layer one switching in a packet, cell, or frame-based network
KR100272431B1 (ko) * 1998-09-03 2000-11-15 김영환 Cdma 이동통신시스템의 통화권역 확장장치 및 그 방법
US6510150B1 (en) * 1998-12-21 2003-01-21 Koninklijke Philips Electronics N.V. Method of MAC synchronization in TDMA-based wireless networks
SE513899C2 (sv) 1999-01-12 2000-11-20 Ericsson Telefon Ab L M Metod och arrangemang för synkronisering
WO2001047162A1 (en) 1999-12-23 2001-06-28 Cetacean Networks, Inc. Network switch with packet scheduling
US7103124B1 (en) 1999-12-30 2006-09-05 Telefonaktiebolaget Lm Ericsson (Publ) Synchronization of nodes
US6590524B1 (en) * 2000-05-10 2003-07-08 Rockwell Collins, Inc. Method and means for precise time synchronization
WO2001088763A1 (en) * 2000-05-18 2001-11-22 Brix Networks, Inc. Ip packet identification method and system for tcp connection and udp stream
US20020006115A1 (en) * 2000-05-18 2002-01-17 Kaynam Hedayat Non-deterministic software delay estimation method and system for packet based data network systems
WO2001088668A2 (en) * 2000-05-18 2001-11-22 Brix Networks, Inc. Hardware time stamping and registration of packetized data method and system
US6944187B1 (en) * 2000-08-09 2005-09-13 Alcatel Canada Inc. Feature implementation in a real time stamp distribution system
DE10046240A1 (de) * 2000-09-19 2002-03-28 Deutsche Telekom Ag Verfahren zur Messung der unidirektionalen Übertragungseigenschaften, wie Paketlaufzeit, Laufzeitschwankungen und der hieraus ableitbaren Ergebnisse, in einem Telekommunikationsnetz
US7249272B1 (en) * 2000-10-11 2007-07-24 General Dynamics Advanced Information Systems, Inc. Apparatus and method for coordinating activities of one or more computers
US7023883B1 (en) * 2000-12-27 2006-04-04 Cisco Technology, Inc. Method for providing a network timing reference clock in ethernet-connected VOIP equipment
US6452541B1 (en) 2001-02-20 2002-09-17 Motorola, Inc. Time synchronization of a satellite positioning system enabled mobile receiver and base station
US6760687B2 (en) * 2001-05-31 2004-07-06 Fisher-Rosemount Systems, Inc. Sequence of events detection in a process control system
AUPR580301A0 (en) * 2001-06-20 2001-07-12 Tele-Ip Limited Adaptive packet routing
ES2213095T3 (es) * 2001-09-24 2004-08-16 Evolium S.A.S. Metodo para sincronizar nodos terrestres equipados con receptores gnss y pertenecientes a una red terrestre.
US20040204850A1 (en) * 2002-03-06 2004-10-14 Ford Motor Company Automotive synchronized communication networks
US7454494B1 (en) * 2003-01-07 2008-11-18 Exfo Service Assurance Inc. Apparatus and method for actively analyzing a data packet delivery path
US8014378B1 (en) 2003-10-23 2011-09-06 Itt Manufacturing Enterprise, Inc. Method and apparatus for automatic control of time-of-day synchronization and merging of networks
JP2006236251A (ja) * 2005-02-28 2006-09-07 Fujitsu Ltd タイムスタンプ装置、時刻校正方法および時刻校正プログラム
US7480580B2 (en) * 2005-10-18 2009-01-20 Schweitzer Engineering Laboratories, Inc. Apparatus and method for estimating synchronized phasors at predetermined times referenced to an absolute time standard in an electrical system
US8345561B2 (en) 2006-08-22 2013-01-01 Rueters America Inc. Time monitor
US7451339B2 (en) * 2006-09-15 2008-11-11 International Business Machines Corporation Pulse-per-second attachment for STP
US8055801B2 (en) * 2006-09-15 2011-11-08 International Business Machines Corporation Pulse-per-second attachment for STP
US7630863B2 (en) * 2006-09-19 2009-12-08 Schweitzer Engineering Laboratories, Inc. Apparatus, method, and system for wide-area protection and control using power system data having a time component associated therewith
FI119165B (fi) * 2006-12-04 2008-08-15 Tellabs Oy Menetelmä ja järjestelmä kellosignaalien tahdistamiseksi
JP4804408B2 (ja) * 2007-04-17 2011-11-02 株式会社日立製作所 ログ解析方法及び装置
CN101078763B (zh) * 2007-04-25 2011-09-14 北京网新易尚科技有限公司 在ip网络中依靠卫星定位系统校准时钟频率的方法及设备
WO2009042964A1 (en) * 2007-09-28 2009-04-02 Schweitzer Engineering Laboratories, Inc. Amplitude and phase comparators for line protection
CA2700973C (en) * 2007-09-28 2014-05-13 Schweitzer Engineering Laboratories, Inc. Systems and methods for power swing and out-of-step detection using time stamped data
US20090088990A1 (en) * 2007-09-30 2009-04-02 Schweitzer Iii Edmund O Synchronized phasor processor for a power system
FI120378B (fi) * 2007-10-24 2009-09-30 Tellabs Oy Menetelmä ja järjestely kellonaika-arvon siirtämiseksi verkkoelementtien välillä
KR20090100868A (ko) * 2008-03-21 2009-09-24 삼성전자주식회사 복수의 링크를 포함하는 네트워크 분석 방법 및 장치
US8494795B2 (en) * 2008-05-05 2013-07-23 Schweitzer Engineering Laboratories Inc Apparatus and method for estimating synchronized phasors at predetermined times referenced to a common time standard in an electrical system
JP5262457B2 (ja) * 2008-09-02 2013-08-14 富士通株式会社 伝送システム
US8107502B2 (en) * 2009-09-11 2012-01-31 Symmetricom, Inc. Method and apparatus for monitoring packet networks
CA2699596A1 (fr) 2010-03-24 2011-09-24 Hydro-Quebec Systeme et methode de synchronisation de phase de signaux produits par des unites de mesure respectives
JP2012122775A (ja) * 2010-12-06 2012-06-28 Nec Corp 航空機位置測定システム、該システムに用いられる時刻同期方法及び時刻同期プログラム
US9306727B2 (en) * 2014-07-22 2016-04-05 Raytheon Company System and method for synchronizing ground clocks
US9568516B2 (en) 2014-09-23 2017-02-14 Schweitzer Engineering Laboratories, Inc. Determining status of electric power transmission lines in an electric power transmission system
US10721009B2 (en) * 2016-11-17 2020-07-21 Accedian Networks Inc. Virtualized clocks
CN108737000B (zh) * 2017-04-24 2020-01-21 上海诺基亚贝尔股份有限公司 用于时钟同步的方法和设备
CN110098971A (zh) * 2018-01-31 2019-08-06 深圳市英特瑞半导体科技有限公司 一种网络链路不对称测量方法和网络节点
ES2835318T3 (es) 2018-06-06 2021-06-22 St Eng Idirect Europe Cy Nv Sistema para sincronizar un segmento terrestre a un satélite de salto de haz
CN111190344B (zh) * 2018-11-15 2022-01-11 北京自动化控制设备研究所 一种卫星导航军码授时设备的设计方法
CN114070762B (zh) * 2020-07-29 2024-04-09 中国电信股份有限公司 网络监测探针组件、同步方法、数据采集分析装置
CN112255592B (zh) * 2020-10-19 2023-07-11 西安电子工程研究所 基于GPS秒脉冲产生毫秒ms级雷达时间信息的FPGA实现方法
US11956744B2 (en) 2021-03-30 2024-04-09 Crystal Instruments Corporation Sampling synchronization through GPS signals
US11754724B2 (en) 2021-12-29 2023-09-12 Crystal Instruments Corporation Cross spectrum analysis for time stamped signals

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US5280629A (en) * 1991-12-06 1994-01-18 Motorola, Inc. Technique for measuring channel delay
US5245634A (en) * 1992-03-23 1993-09-14 Motorola, Inc. Base-site synchronization in a communication system
US6308077B1 (en) * 1992-10-02 2001-10-23 Motorola, Inc. Apparatus and method for providing synchronization of base-stations in a communication system
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US5481258A (en) * 1993-08-11 1996-01-02 Glenayre Electronics, Inc. Method and apparatus for coordinating clocks in a simulcast network
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Also Published As

Publication number Publication date
DE69731749T2 (de) 2005-05-12
US6104729A (en) 2000-08-15
AU4405697A (en) 1998-04-17
SE507227C2 (sv) 1998-04-27
JP2001501788A (ja) 2001-02-06
JP3820275B2 (ja) 2006-09-13
CA2265707A1 (en) 1998-04-02
WO1998013969A1 (en) 1998-04-02
EP0917780B1 (de) 2004-11-24
EP0917780A1 (de) 1999-05-26
SE9603368D0 (sv) 1996-09-16
SE9603368L (sv) 1998-03-17

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Legal Events

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8364 No opposition during term of opposition