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WO2009035091A1 - クロック同期システム、その方法及びそのプログラム - Google Patents

クロック同期システム、その方法及びそのプログラム Download PDF

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Publication number
WO2009035091A1
WO2009035091A1 PCT/JP2008/066567 JP2008066567W WO2009035091A1 WO 2009035091 A1 WO2009035091 A1 WO 2009035091A1 JP 2008066567 W JP2008066567 W JP 2008066567W WO 2009035091 A1 WO2009035091 A1 WO 2009035091A1
Authority
WO
WIPO (PCT)
Prior art keywords
clock
slave node
packet
clock synchronization
node
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.)
Ceased
Application number
PCT/JP2008/066567
Other languages
English (en)
French (fr)
Inventor
Masaki Umayabashi
Hideo Yoshimi
Zhenlong Cui
Kazuo Takagi
Atsushi Iwata
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to US12/678,167 priority Critical patent/US8675665B2/en
Priority to CN2008801070432A priority patent/CN101803268B/zh
Priority to JP2009532245A priority patent/JP5354474B2/ja
Publication of WO2009035091A1 publication Critical patent/WO2009035091A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers
    • H04J3/0632—Synchronisation of packets and cells, e.g. transmission of voice via a packet network, circuit emulation service [CES]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/28—Timers or timing mechanisms used in protocols

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

　マスタノードとスレーブノード間のクロック同期精度を安定的に計測する。 　スレーブノードが、マスタノードから送信されてきたパケットを用いて、自身のクロックを前記マスタノードのクロックに同期させるスレーブノードが、前記送信されてきたパケットを用いて前記スレーブノードのクロックを再生し、前記送信されてきたパケットの情報及び前記再生により得られた前記スレーブノードのクロックを蓄積し、前記蓄積した情報に基づいてクロック同期を行う。
PCT/JP2008/066567 2007-09-14 2008-09-12 クロック同期システム、その方法及びそのプログラム Ceased WO2009035091A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/678,167 US8675665B2 (en) 2007-09-14 2008-09-12 Clock synchronization system, its method and program
CN2008801070432A CN101803268B (zh) 2007-09-14 2008-09-12 时钟同步系统及其方法和程序
JP2009532245A JP5354474B2 (ja) 2007-09-14 2008-09-12 クロック同期システム、その方法及びそのプログラム

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-239415 2007-09-14
JP2007239415 2007-09-14
JP2008-172578 2008-07-01
JP2008172578 2008-07-01

Publications (1)

Publication Number Publication Date
WO2009035091A1 true WO2009035091A1 (ja) 2009-03-19

Family

ID=40452097

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/066567 Ceased WO2009035091A1 (ja) 2007-09-14 2008-09-12 クロック同期システム、その方法及びそのプログラム

Country Status (4)

Country Link
US (1) US8675665B2 (ja)
JP (1) JP5354474B2 (ja)
CN (1) CN101803268B (ja)
WO (1) WO2009035091A1 (ja)

Cited By (4)

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WO2010058831A1 (ja) * 2008-11-20 2010-05-27 日本電気株式会社 パケットフィルタを用いたクロック同期システム、装置、方法およびそのプログラム
JP2011029918A (ja) * 2009-07-24 2011-02-10 Nec Corp クロック同期システムと通信装置と方法とプログラム
WO2014073293A1 (ja) * 2012-11-08 2014-05-15 ソニー株式会社 通信装置、通信システム、および同期処理方法、並びにプログラム
CN102271083B (zh) * 2010-06-04 2015-12-09 株式会社巨晶片 通信控制装置和整形装置

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US20120120874A1 (en) * 2010-11-15 2012-05-17 Decawave Limited Wireless access point clock synchronization system
US9608755B2 (en) * 2011-02-23 2017-03-28 Ciena Corporation Network element clock synchronization systems and methods using optical transport network delay measurement
US9425948B2 (en) * 2012-01-26 2016-08-23 Qualcomm Incorporated Techniques for synchronizing a clock of a wired connection when transmitted over a wireless channel
BR112014018147A8 (pt) * 2012-01-30 2017-07-11 Sony Corp Dispositivo e método de processamento de sincronização, e, programa
WO2013125989A1 (en) * 2012-02-20 2013-08-29 Telefonaktiebolaget L M Ericsson (Publ) Capacity estimates using burst-trailer trains
US8824328B2 (en) * 2012-02-29 2014-09-02 Infosys Limited Systems and methods for optimizing the performance of an application communicating over a network
JP6032945B2 (ja) * 2012-05-28 2016-11-30 サターン ライセンシング エルエルシーＳａｔｕｒｎ Ｌｉｃｅｎｓｉｎｇ ＬＬＣ 信号処理装置、及び、信号処理方法
US9124380B2 (en) * 2012-12-03 2015-09-01 Avago Technologies General Ip (Singapore) Pte. Ltd. Packet delay distribution rate filtering
US9825724B2 (en) 2013-01-08 2017-11-21 Aviat U.S., Inc. Systems and methods for transporting a clock signal over a network
CN103281148B (zh) * 2013-05-10 2015-11-18 国家电网公司 无需交换机特别支持的网络时间同步方法
CN104333427B (zh) * 2014-09-30 2017-04-12 中国船舶重工集团公司第七0七研究所 一种提高ttcan时钟同步精度的方法
TWI523432B (zh) 2014-11-05 2016-02-21 驊訊電子企業股份有限公司 參考頻率校正模組及其電子裝置
US10313041B2 (en) 2016-06-10 2019-06-04 Apple Inc. Determination of accuracy of a chain of clocks
US10509434B1 (en) * 2016-09-27 2019-12-17 Amazon Technologies, Inc. Oscillator profiling for time synchronization
CN107888656B (zh) * 2017-10-09 2020-11-20 北京京东尚科信息技术有限公司 服务端接口的调用方法和调用装置
IL257997B (en) * 2018-03-08 2019-09-26 Connected Intelligence Systems Ltd Method and system for fabric network synchronization
US11243561B2 (en) * 2018-09-26 2022-02-08 The Charles Stark Draper Laboratory, Inc. Byzantine asynchronous timing exchange for multi-device clock synchronization
CN111327386B (zh) * 2018-12-14 2023-08-08 深圳市中兴微电子技术有限公司 一种延时抖动补偿方法、装置及计算机存储介质
DE102019200437A1 (de) * 2019-01-16 2020-07-16 Robert Bosch Gmbh Synchronisierung von Komponenten durch ein Steuergerät
CN113543303B (zh) * 2021-06-30 2022-10-21 紫光展锐(重庆)科技有限公司 一种同步方法、装置、芯片及模组设备
CN114070446B (zh) * 2021-11-15 2023-04-21 威创集团股份有限公司 一种数据同步传输方法、装置、设备和存储介质

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JP2007134873A (ja) * 2005-11-09 2007-05-31 National Institute Of Information & Communication Technology 高精度時刻同期処理装置およびそのプログラム，ならびにネットワーク混雑度警告装置およびそのプログラム

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JP2000244473A (ja) * 1999-02-24 2000-09-08 Matsushita Electric Ind Co Ltd Ｐｌｌ回路
JP2000278275A (ja) * 1999-03-23 2000-10-06 Yamaha Corp パケット転送装置
WO2001050674A1 (en) * 1999-12-30 2001-07-12 Nokia Networks Oy Synchronization in packet-switched telecommunications system
JP2001244809A (ja) * 2000-02-28 2001-09-07 Matsushita Electric Ind Co Ltd Ｐｌｌ回路
WO2004075447A1 (en) * 2003-02-20 2004-09-02 Zarlink Semiconductor Inc. Alignment of clock domains in packet networks
JP2007134873A (ja) * 2005-11-09 2007-05-31 National Institute Of Information & Communication Technology 高精度時刻同期処理装置およびそのプログラム，ならびにネットワーク混雑度警告装置およびそのプログラム

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010058831A1 (ja) * 2008-11-20 2010-05-27 日本電気株式会社 パケットフィルタを用いたクロック同期システム、装置、方法およびそのプログラム
JPWO2010058831A1 (ja) * 2008-11-20 2012-04-19 日本電気株式会社 パケットフィルタを用いたクロック同期システム、装置、方法およびそのプログラム
US8731036B2 (en) 2008-11-20 2014-05-20 Nec Corporation Packet filter-based clock synchronization system, apparatus, and method, and program thereof
JP2011029918A (ja) * 2009-07-24 2011-02-10 Nec Corp クロック同期システムと通信装置と方法とプログラム
CN102271083B (zh) * 2010-06-04 2015-12-09 株式会社巨晶片 通信控制装置和整形装置
WO2014073293A1 (ja) * 2012-11-08 2014-05-15 ソニー株式会社 通信装置、通信システム、および同期処理方法、並びにプログラム

Also Published As

Publication number Publication date
CN101803268A (zh) 2010-08-11
JPWO2009035091A1 (ja) 2010-12-24
US8675665B2 (en) 2014-03-18
CN101803268B (zh) 2013-03-27
JP5354474B2 (ja) 2013-11-27
US20100309934A1 (en) 2010-12-09

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