FR2965131B1 - Procede de correction d'une asymetrie de delai. - Google Patents

Procede de correction d'une asymetrie de delai.

Info

Publication number
FR2965131B1
FR2965131B1 FR1003727A FR1003727A FR2965131B1 FR 2965131 B1 FR2965131 B1 FR 2965131B1 FR 1003727 A FR1003727 A FR 1003727A FR 1003727 A FR1003727 A FR 1003727A FR 2965131 B1 FR2965131 B1 FR 2965131B1
Authority
FR
France
Prior art keywords
delay asymmetry
correcting delay
correcting
asymmetry
delay
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.)
Active
Application number
FR1003727A
Other languages
English (en)
Other versions
FR2965131A1 (fr
Inventor
Pallec Michel Le
Dinh Thai Bui
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 Lucent SAS
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
Priority to FR1003727A priority Critical patent/FR2965131B1/fr
Application filed by Alcatel Lucent SAS filed Critical Alcatel Lucent SAS
Priority to US13/819,363 priority patent/US20130209096A1/en
Priority to PCT/FR2011/052126 priority patent/WO2012038644A1/fr
Priority to EP11773098.6A priority patent/EP2619936A1/fr
Priority to JP2013528748A priority patent/JP5671619B2/ja
Priority to KR1020137010084A priority patent/KR101479483B1/ko
Priority to CN2011800451068A priority patent/CN103119872A/zh
Publication of FR2965131A1 publication Critical patent/FR2965131A1/fr
Application granted granted Critical
Publication of FR2965131B1 publication Critical patent/FR2965131B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • 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
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0226—Fixed carrier allocation, e.g. according to service
    • 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
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852—Delays

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Optical Communication System (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
FR1003727A 2010-09-20 2010-09-20 Procede de correction d'une asymetrie de delai. Active FR2965131B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR1003727A FR2965131B1 (fr) 2010-09-20 2010-09-20 Procede de correction d'une asymetrie de delai.
PCT/FR2011/052126 WO2012038644A1 (fr) 2010-09-20 2011-09-15 Procede de correction d'une asymetrie de delai
EP11773098.6A EP2619936A1 (fr) 2010-09-20 2011-09-15 Procede de correction d'une asymetrie de delai
JP2013528748A JP5671619B2 (ja) 2010-09-20 2011-09-15 遅延非対称を補正するための方法
US13/819,363 US20130209096A1 (en) 2010-09-20 2011-09-15 Method for correcting a delay asymmetry
KR1020137010084A KR101479483B1 (ko) 2010-09-20 2011-09-15 지연의 비대칭을 보정하는 방법
CN2011800451068A CN103119872A (zh) 2010-09-20 2011-09-15 用于修正延迟不对称的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1003727A FR2965131B1 (fr) 2010-09-20 2010-09-20 Procede de correction d'une asymetrie de delai.

Publications (2)

Publication Number Publication Date
FR2965131A1 FR2965131A1 (fr) 2012-03-23
FR2965131B1 true FR2965131B1 (fr) 2012-09-28

Family

ID=43877283

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1003727A Active FR2965131B1 (fr) 2010-09-20 2010-09-20 Procede de correction d'une asymetrie de delai.

Country Status (7)

Country Link
US (1) US20130209096A1 (fr)
EP (1) EP2619936A1 (fr)
JP (1) JP5671619B2 (fr)
KR (1) KR101479483B1 (fr)
CN (1) CN103119872A (fr)
FR (1) FR2965131B1 (fr)
WO (1) WO2012038644A1 (fr)

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US9680567B2 (en) 2011-03-03 2017-06-13 Acacia Communications, Inc. Fault localization and fiber security in optical transponders
US20150244455A1 (en) * 2012-03-27 2015-08-27 Hangzhou H3C Technologies Co., Ltd. Calculating time offset
CN103840902B (zh) 2012-11-20 2017-06-27 中兴通讯股份有限公司 检测光纤非对称性的同步***、方法及主从光模块设备
CN103840877B (zh) 2012-11-23 2017-11-24 中兴通讯股份有限公司 自动检测光纤非对称性的时间同步装置及方法
WO2014107717A1 (fr) * 2013-01-07 2014-07-10 Microsemi Frequency And Time Corporation Correction asymétrique universelle pour protocoles de synchronisation de paquets
CN104184571B (zh) 2013-05-20 2019-04-23 中兴通讯股份有限公司 从时钟设备的时间修正方法及装置
RU2638645C2 (ru) * 2013-08-22 2017-12-15 Телефонактиеболагет Л М Эрикссон (Пабл) Способ для определения опорных синхросигналов, подвергнутых воздействию изменения в асимметрии задержки трассы распространения между узлами в сети связи
CN104993900B (zh) * 2015-07-06 2018-03-09 江苏省电力公司南京供电公司 一种基于ieee1588时钟模型的同步校正方法
CN105187275B (zh) * 2015-08-28 2018-05-29 四川泰富地面北斗科技股份有限公司 一种测量光纤传输链路非对称时延的方法及装置
US10397190B2 (en) * 2016-02-05 2019-08-27 Huawei Technologies Co., Ltd. System and method for generating an obfuscated optical signal
US10341083B2 (en) * 2016-09-09 2019-07-02 Huawei Technologies Co., Ltd. System and methods for network synchronization
EP3382918B1 (fr) 2017-03-30 2022-09-28 ADVA Optical Networking SE Système et procédé de gestion d'horloge dans un réseau de données par paquets
US10313103B1 (en) * 2018-01-24 2019-06-04 Ciena Corporation Systems and methods for precise time synchronization with optical modules
JP2019146014A (ja) * 2018-02-20 2019-08-29 日本電信電話株式会社 時刻同期システム及び時刻同期方法
KR102580505B1 (ko) * 2018-09-17 2023-09-21 삼성전자주식회사 디스플레이장치, 그 제어방법 및 기록매체
JP7310163B2 (ja) * 2019-02-14 2023-07-19 日本電信電話株式会社 伝送装置、時刻伝送システム、および、遅延補正方法
JP7302192B2 (ja) * 2019-02-14 2023-07-04 日本電信電話株式会社 伝送装置、時刻伝送システム、および、遅延補正方法
JP7298182B2 (ja) * 2019-02-21 2023-06-27 日本電信電話株式会社 時刻伝送装置および伝送方法
US11206095B1 (en) 2019-03-22 2021-12-21 Equinix, Inc. Timing synchronization for clock systems with asymmetric path delay
US10986426B1 (en) * 2020-01-02 2021-04-20 Cisco Technology, Inc. Measuring fiber asymmetry
CN113098647B (zh) * 2020-01-09 2022-04-29 烽火通信科技股份有限公司 一种波长差异造成的链路不对称性误差计算方法及***
CN112202523B (zh) * 2020-10-10 2021-10-29 中国人民解放军海军工程大学 一种双纤双波时间传递***及瞬时钟差估算方法

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE102004055975B4 (de) * 2004-11-19 2007-05-03 Bosch Rexroth Ag Synchronisationsverfahren und Steuerungssystem für die zeitliche Synchronisation von Nebeneinheiten, sowie zeitsynchronisierbare Nebeneinheit
US7602873B2 (en) * 2005-12-23 2009-10-13 Agilent Technologies, Inc. Correcting time synchronization inaccuracy caused by asymmetric delay on a communication link
US20070147265A1 (en) * 2005-12-23 2007-06-28 Eidson John C Correcting time synchronization inaccuracy caused by internal asymmetric delays in a device
WO2008093600A1 (fr) * 2007-01-29 2008-08-07 Nec Corporation Système de synchronisation temporelle, procédé de synchronisation temporelle, et programme
JP4757215B2 (ja) * 2007-02-28 2011-08-24 富士通株式会社 光伝送システムおよび光伝送方法
US7876498B1 (en) * 2007-03-23 2011-01-25 Lockheed Martin Corporation Pulse-energy-stabilization approach and first-pulse-suppression method using fiber amplifier
JP2009065579A (ja) * 2007-09-10 2009-03-26 Nec Corp 時刻同期システム、時刻同期方法、ノード及びプログラム
US8175113B2 (en) * 2008-06-30 2012-05-08 Infinera Corporation Communication network with node bypassed co-routed multi-channel traffic
JP5261164B2 (ja) 2008-12-24 2013-08-14 日本電信電話株式会社 光伝送システム
US8154836B2 (en) * 2009-09-17 2012-04-10 Schweitzer Engineering Laboratories, Inc. Line current differential protection upon loss of an external time reference
US8582606B2 (en) * 2010-05-24 2013-11-12 Cortina Systems, Inc. Network system with synchronization and method of operation thereof

Also Published As

Publication number Publication date
JP5671619B2 (ja) 2015-02-18
KR101479483B1 (ko) 2015-01-06
JP2013538022A (ja) 2013-10-07
US20130209096A1 (en) 2013-08-15
EP2619936A1 (fr) 2013-07-31
KR20130064808A (ko) 2013-06-18
FR2965131A1 (fr) 2012-03-23
WO2012038644A1 (fr) 2012-03-29
CN103119872A (zh) 2013-05-22

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Legal Events

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Effective date: 20131018

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Effective date: 20141016

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