US20100067552A1 - Method and device for improving clock stability - Google Patents

Method and device for improving clock stability Download PDF

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Publication number
US20100067552A1
US20100067552A1 US12/501,861 US50186109A US2010067552A1 US 20100067552 A1 US20100067552 A1 US 20100067552A1 US 50186109 A US50186109 A US 50186109A US 2010067552 A1 US2010067552 A1 US 2010067552A1
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difference
receiver
subunit
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current
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Abandoned
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US12/501,861
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English (en)
Inventor
Wenhua Sun
Xiaobo Wang
Jihui Wang
Wenguang Xu
Shenghing Yang
Youhao Deng
Bingbo Li
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Assigned to HUAWEI TECHNOLOGIES CO., LTD. reassignment HUAWEI TECHNOLOGIES CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DENG, YOUHAO, LI, BINGBO, SUN, WENHUA, WANG, JIHUI, WANG, XIAOBO, XU, WENGUANG, YANG, SHENGBING
Publication of US20100067552A1 publication Critical patent/US20100067552A1/en
Priority to US12/938,123 priority Critical patent/US7924887B2/en
Abandoned legal-status Critical Current

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    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/14—Monitoring arrangements
    • 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
    • H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
    • H04L43/106—Active monitoring, e.g. heartbeat, ping or trace-route using time related information in packets, e.g. by adding timestamps

Definitions

  • FIG. 8 is a structural diagram of a service clock acquiring unit according to an embodiment of the present disclosure.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
US12/501,861 2008-09-12 2009-07-13 Method and device for improving clock stability Abandoned US20100067552A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/938,123 US7924887B2 (en) 2008-09-12 2010-11-02 Method and device for improving clock stability

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200810211970.0A CN101674174B (zh) 2008-09-12 2008-09-12 一种提高时钟稳定度的方法及设备
CN200810211970.0 2008-09-12
CNPCT/CN2009/071506 2009-04-27
PCT/CN2009/071506 WO2010028550A1 (zh) 2008-09-12 2009-04-27 一种提高时钟稳定度的方法及设备

Related Child Applications (1)

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US12/938,123 Continuation US7924887B2 (en) 2008-09-12 2010-11-02 Method and device for improving clock stability

Publications (1)

Publication Number Publication Date
US20100067552A1 true US20100067552A1 (en) 2010-03-18

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Family Applications (2)

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US12/501,861 Abandoned US20100067552A1 (en) 2008-09-12 2009-07-13 Method and device for improving clock stability
US12/938,123 Expired - Fee Related US7924887B2 (en) 2008-09-12 2010-11-02 Method and device for improving clock stability

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/938,123 Expired - Fee Related US7924887B2 (en) 2008-09-12 2010-11-02 Method and device for improving clock stability

Country Status (4)

Country Link
US (2) US20100067552A1 (zh)
EP (1) EP2164194B1 (zh)
CN (1) CN101674174B (zh)
WO (1) WO2010028550A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110058576A1 (en) * 2008-09-12 2011-03-10 Huawei Technologies Co., Ltd. Method and device for improving clock stability
US20130141272A1 (en) * 2010-08-31 2013-06-06 Huawei Technologies Co., Ltd. Microwave transmission apparatus
US20170310569A1 (en) * 2016-04-21 2017-10-26 Cisco Technology, Inc. Distributed stateless inference of hop-wise delays and round-trip time for internet protocol traffic

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GB2488063B (en) * 2009-11-20 2015-08-26 Anue Systems Inc Method, system and computer program product for measuring a communication from a first device to a second device
CN102340365B (zh) * 2010-07-27 2014-06-11 中兴通讯股份有限公司 一种基于时戳的时钟恢复方法及装置
JP6266982B2 (ja) * 2011-01-04 2018-01-24 ナパテック アクティーゼルスカブ データを受信しフォワードするための装置および方法
CN102255683B (zh) * 2011-07-08 2014-10-15 电子科技大学 一种用于高速光时分复用系统的时钟恢复方法
EP2782272B1 (en) * 2011-11-17 2022-05-04 ZTE Corporation Method and apparatus for packet timing recovery
CN102946330B (zh) * 2012-09-29 2017-03-15 华为技术有限公司 网络丢包测量方法、装置和系统
CN104378192B (zh) * 2013-08-15 2017-08-04 加微通信技术（上海）有限公司 差分异常探测和补偿方法、装置及高精度时钟恢复系统
JP2016131287A (ja) * 2015-01-13 2016-07-21 三菱電機株式会社 通信システム、送信装置および受信装置
CN106603183B (zh) * 2015-10-15 2019-11-15 中兴通讯股份有限公司 一种时间戳过滤方法及装置
CN107241155A (zh) * 2016-03-28 2017-10-10 中兴通讯股份有限公司 一种自适应时钟恢复方法及装置
KR101701389B1 (ko) 2016-07-22 2017-02-13 주식회사 링슨 야드 트랙터 충전 설비
KR101701390B1 (ko) 2016-08-30 2017-02-01 주식회사 링슨 전원 공급 효율을 개선할 수 있는 야드 트랙터 충전 설비
CN106357459B (zh) * 2016-11-02 2019-09-17 瑞斯康达科技发展股份有限公司 一种延迟抖动处理的方法及装置、时钟同步装置
CN112866134A (zh) * 2018-01-26 2021-05-28 华为技术有限公司 发送报文的方法、第一网络设备及计算机可读存储介质
CN111830892B (zh) * 2019-04-22 2022-09-23 新疆金风科技股份有限公司 风力发电机组统计时间校准方法和装置、存储介质
CN112821981B (zh) * 2021-01-19 2023-03-24 柳州达迪通信技术股份有限公司 基于光传送网的业务恢复时钟提取方法、系统及存储介质

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US6819685B1 (en) * 1998-12-03 2004-11-16 Alcatel Method of and system for controlling a frequency via an asynchronous transmission network and mobile telephone network including the system
US20040258099A1 (en) * 2003-03-07 2004-12-23 Scott Martin Raymond Clock synchronisation over a packet network
US7020791B1 (en) * 2002-09-19 2006-03-28 Nortel Networks Limited Clock recovery using a double-exponential smoothing process
US7079554B2 (en) * 2002-10-16 2006-07-18 Terasync, Ltd. System and method for synchronizing between communication terminals of asynchronous packets networks
US20060233203A1 (en) * 2005-04-13 2006-10-19 Sony Corporation Synchronized audio/video decoding for network devices
US20060291479A1 (en) * 2005-06-28 2006-12-28 Israel Sasson System and method for high precision clock recovery over packet networks
US20070223459A1 (en) * 2006-03-21 2007-09-27 Zarlink Semiconductor Limited Timing source
US7289538B1 (en) * 2001-08-14 2007-10-30 Atrica Israel Ltd. Clock reconstruction for time division multiplexed traffic transported over asynchronous ethernet networks
US7411970B2 (en) * 2002-08-24 2008-08-12 Zarlink Semiconductor Limited Adaptive clock recovery
US7415044B2 (en) * 2003-08-22 2008-08-19 Telefonaktiebolaget Lm Ericsson (Publ) Remote synchronization in packet-switched networks
US7474624B2 (en) * 2003-05-29 2009-01-06 Motorola, Inc. Method and apparatus for reducing delay jitter
US7711009B2 (en) * 2006-09-29 2010-05-04 Agere Systems Inc. Methods and apparatus for timing synchronization in packet networks

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US7191355B1 (en) * 2002-02-19 2007-03-13 Nortel Networks Limited Clock synchronization backup mechanism for circuit emulation service
US7106823B2 (en) * 2002-11-15 2006-09-12 Broadcom Corporation System and method for accelerated clock synchronization of remotely distributed electronic devices
CN1330152C (zh) * 2003-08-01 2007-08-01 华为技术有限公司 对时分复接业务进行时钟恢复的装置及其方法
US20070104228A1 (en) * 2005-11-09 2007-05-10 Resolute Networks, Ltd. Asymmetric Differential Timing
CN101674174B (zh) * 2008-09-12 2013-06-05 华为技术有限公司 一种提高时钟稳定度的方法及设备

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6819685B1 (en) * 1998-12-03 2004-11-16 Alcatel Method of and system for controlling a frequency via an asynchronous transmission network and mobile telephone network including the system
US7289538B1 (en) * 2001-08-14 2007-10-30 Atrica Israel Ltd. Clock reconstruction for time division multiplexed traffic transported over asynchronous ethernet networks
US7411970B2 (en) * 2002-08-24 2008-08-12 Zarlink Semiconductor Limited Adaptive clock recovery
US7020791B1 (en) * 2002-09-19 2006-03-28 Nortel Networks Limited Clock recovery using a double-exponential smoothing process
US7079554B2 (en) * 2002-10-16 2006-07-18 Terasync, Ltd. System and method for synchronizing between communication terminals of asynchronous packets networks
US20040258099A1 (en) * 2003-03-07 2004-12-23 Scott Martin Raymond Clock synchronisation over a packet network
US7817673B2 (en) * 2003-03-07 2010-10-19 Zarlink Semiconductor Limited Clock synchronisation over a packet network
US7474624B2 (en) * 2003-05-29 2009-01-06 Motorola, Inc. Method and apparatus for reducing delay jitter
US7415044B2 (en) * 2003-08-22 2008-08-19 Telefonaktiebolaget Lm Ericsson (Publ) Remote synchronization in packet-switched networks
US20060233203A1 (en) * 2005-04-13 2006-10-19 Sony Corporation Synchronized audio/video decoding for network devices
US20060291479A1 (en) * 2005-06-28 2006-12-28 Israel Sasson System and method for high precision clock recovery over packet networks
US20070223459A1 (en) * 2006-03-21 2007-09-27 Zarlink Semiconductor Limited Timing source
US7711009B2 (en) * 2006-09-29 2010-05-04 Agere Systems Inc. Methods and apparatus for timing synchronization in packet networks

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110058576A1 (en) * 2008-09-12 2011-03-10 Huawei Technologies Co., Ltd. Method and device for improving clock stability
US7924887B2 (en) * 2008-09-12 2011-04-12 Huawei Technologies Co., Ltd. Method and device for improving clock stability
US20130141272A1 (en) * 2010-08-31 2013-06-06 Huawei Technologies Co., Ltd. Microwave transmission apparatus
US9069054B2 (en) * 2010-08-31 2015-06-30 Huawei Technologies Co., Ltd. Microwave transmission apparatus
US20170310569A1 (en) * 2016-04-21 2017-10-26 Cisco Technology, Inc. Distributed stateless inference of hop-wise delays and round-trip time for internet protocol traffic
US10728130B2 (en) * 2016-04-21 2020-07-28 Cisco Technology, Inc. Distributed stateless inference of hop-wise delays and round-trip time for internet protocol traffic

Also Published As

Publication number Publication date
EP2164194B1 (en) 2015-04-15
EP2164194A1 (en) 2010-03-17
CN101674174B (zh) 2013-06-05
CN101674174A (zh) 2010-03-17
US20110058576A1 (en) 2011-03-10
US7924887B2 (en) 2011-04-12
WO2010028550A1 (zh) 2010-03-18

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Owner name: HUAWEI TECHNOLOGIES CO., LTD.,CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SUN, WENHUA;WANG, XIAOBO;WANG, JIHUI;AND OTHERS;REEL/FRAME:022947/0154

Effective date: 20090708

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION