CN101098219A - 校正由通信链路上的不对称延迟导致的时间同步误差 - Google Patents

校正由通信链路上的不对称延迟导致的时间同步误差 Download PDF

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Publication number
CN101098219A
CN101098219A CNA2006101683059A CN200610168305A CN101098219A CN 101098219 A CN101098219 A CN 101098219A CN A2006101683059 A CNA2006101683059 A CN A2006101683059A CN 200610168305 A CN200610168305 A CN 200610168305A CN 101098219 A CN101098219 A CN 101098219A
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equipment
communication link
asymmetric
clock
upside down
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约翰·C·艾德森
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Agilent Technologies Inc
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Agilent Technologies Inc
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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
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
CNA2006101683059A 2005-12-23 2006-12-20 校正由通信链路上的不对称延迟导致的时间同步误差 Pending CN101098219A (zh)

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US11/317,294 2005-12-23
US11/317,294 US7602873B2 (en) 2005-12-23 2005-12-23 Correcting time synchronization inaccuracy caused by asymmetric delay on a communication link

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CN101098219A true CN101098219A (zh) 2008-01-02

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US (1) US7602873B2 (enExample)
EP (1) EP1802014A1 (enExample)
JP (1) JP4922750B2 (enExample)
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010081348A1 (zh) * 2009-01-16 2010-07-22 华为技术有限公司 一种xDSL时间同步方法、装置和系统
CN101814984A (zh) * 2010-04-09 2010-08-25 华为技术有限公司 获取不对称延迟时间的方法和装置
WO2011035736A1 (zh) * 2009-09-28 2011-03-31 华为技术有限公司 实现时间同步的方法、装置及网络系统
WO2011079460A1 (en) * 2009-12-31 2011-07-07 Abb Research Ltd. Method and apparatus for detecting communication channel delay asymmetry
CN102158945A (zh) * 2010-02-12 2011-08-17 华为技术有限公司 一种数字用户线通信系统中时间同步的方法、装置和系统
CN102291178A (zh) * 2011-09-08 2011-12-21 烽火通信科技股份有限公司 测量光纤不对称性时延的方法及装置
CN102594542A (zh) * 2012-03-22 2012-07-18 杭州华三通信技术有限公司 一种实现精确时间同步的方法和装置
CN103842918A (zh) * 2011-10-06 2014-06-04 索尼公司 时间控制设备、时间控制方法和程序
US8750356B2 (en) 2009-11-27 2014-06-10 Huawei Technologies Co., Ltd. Method, apparatus, and system for measuring asymmetric delay of communication path
CN104115432A (zh) * 2012-01-04 2014-10-22 马维尔国际贸易有限公司 用于在时间认知设备之间传达时间信息的方法和装置
CN104243129A (zh) * 2013-06-10 2014-12-24 索尼公司 接收器、计算时间差的方法以及程序
CN104052564B (zh) * 2009-12-31 2017-01-18 Abb研究有限公司 用于检测信道延迟非对称性的方法和装置
WO2018045857A1 (en) * 2016-09-09 2018-03-15 Huawei Technologies Co., Ltd. System and methods for network synchronization
CN108347763A (zh) * 2017-01-24 2018-07-31 华为技术有限公司 授时的方法、终端设备和网络设备
CN109980611A (zh) * 2018-11-28 2019-07-05 南京国电南自电网自动化有限公司 满足ieee c37.94标准的纵联差动保护自适应同步方法和装置
CN114222360A (zh) * 2021-12-21 2022-03-22 南京欧珀软件科技有限公司 时间同步方法、系统及相关装置
CN114930743A (zh) * 2020-01-02 2022-08-19 思科技术公司 测量光纤不对称性

Families Citing this family (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006031580A1 (de) 2006-07-03 2008-01-17 Faro Technologies, Inc., Lake Mary Verfahren und Vorrichtung zum dreidimensionalen Erfassen eines Raumbereichs
US8036202B2 (en) * 2006-07-27 2011-10-11 Cisco Technology, Inc. Physical layer transceiver with integrated time synchronization
US8325767B2 (en) * 2006-09-29 2012-12-04 Agilent Technologies, Inc. Enhancement of IEEE 1588 synchronization using out-of-band communication path
US20080103713A1 (en) * 2006-10-27 2008-05-01 Barford Lee A Labeling Asymmetric Cables For Improved Network Clock Synchronization
CN101196966B (zh) * 2006-12-08 2010-05-19 华为技术有限公司 许可证交互及其中断后恢复的方法及数字版权管理系统
US8233432B2 (en) * 2007-08-31 2012-07-31 Silicon Image, Inc. Ensuring physical locality of entities sharing data
EP2034642B1 (de) * 2007-09-07 2011-10-26 Siemens Aktiengesellschaft Verfahren zur Übertragung von Synchronisationsnachrichten in einem Kommunikationsnetz
DE102008036221A1 (de) * 2008-08-02 2010-02-04 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Vorrichtung zur Einstellung eines Zeitgebers sowie zugehöriges Bussystem und Fahrzeug mit einer derartigen Vorrichtung
JP5228714B2 (ja) * 2008-09-02 2013-07-03 富士通株式会社 時刻同期方法および中継装置
US20100150288A1 (en) * 2008-12-17 2010-06-17 Miao Zhu Synchronization of Low Noise Local Oscillator using Network Connection
JP5282618B2 (ja) * 2009-03-24 2013-09-04 富士通株式会社 無線基地局装置及びその同期方法
US9551575B2 (en) 2009-03-25 2017-01-24 Faro Technologies, Inc. Laser scanner having a multi-color light source and real-time color receiver
DE102009015920B4 (de) 2009-03-25 2014-11-20 Faro Technologies, Inc. Vorrichtung zum optischen Abtasten und Vermessen einer Umgebung
DE102009057101A1 (de) 2009-11-20 2011-05-26 Faro Technologies, Inc., Lake Mary Vorrichtung zum optischen Abtasten und Vermessen einer Umgebung
US9529083B2 (en) 2009-11-20 2016-12-27 Faro Technologies, Inc. Three-dimensional scanner with enhanced spectroscopic energy detector
US9210288B2 (en) 2009-11-20 2015-12-08 Faro Technologies, Inc. Three-dimensional scanner with dichroic beam splitters to capture a variety of signals
US9113023B2 (en) 2009-11-20 2015-08-18 Faro Technologies, Inc. Three-dimensional scanner with spectroscopic energy detector
CN102656931A (zh) * 2009-12-18 2012-09-05 株式会社Ntt都科摩 无线基站以及中继装置
US8630314B2 (en) 2010-01-11 2014-01-14 Faro Technologies, Inc. Method and apparatus for synchronizing measurements taken by multiple metrology devices
US8677643B2 (en) 2010-01-20 2014-03-25 Faro Technologies, Inc. Coordinate measurement machines with removable accessories
DE112011100193B4 (de) 2010-01-20 2016-07-07 Faro Technologies, Inc. Montagevorrichtung für ein Koordinatenmessgerät
WO2011090888A2 (en) 2010-01-20 2011-07-28 Faro Technologies, Inc. Coordinate measuring machine having an illuminated probe end and method of operation
US9879976B2 (en) 2010-01-20 2018-01-30 Faro Technologies, Inc. Articulated arm coordinate measurement machine that uses a 2D camera to determine 3D coordinates of smoothly continuous edge features
US9163922B2 (en) 2010-01-20 2015-10-20 Faro Technologies, Inc. Coordinate measurement machine with distance meter and camera to determine dimensions within camera images
US9607239B2 (en) 2010-01-20 2017-03-28 Faro Technologies, Inc. Articulated arm coordinate measurement machine having a 2D camera and method of obtaining 3D representations
US9628775B2 (en) 2010-01-20 2017-04-18 Faro Technologies, Inc. Articulated arm coordinate measurement machine having a 2D camera and method of obtaining 3D representations
US8875409B2 (en) 2010-01-20 2014-11-04 Faro Technologies, Inc. Coordinate measurement machines with removable accessories
US8533967B2 (en) 2010-01-20 2013-09-17 Faro Technologies, Inc. Coordinate measurement machines with removable accessories
US8832954B2 (en) 2010-01-20 2014-09-16 Faro Technologies, Inc. Coordinate measurement machines with removable accessories
US8898919B2 (en) 2010-01-20 2014-12-02 Faro Technologies, Inc. Coordinate measurement machine with distance meter used to establish frame of reference
US8615893B2 (en) 2010-01-20 2013-12-31 Faro Technologies, Inc. Portable articulated arm coordinate measuring machine having integrated software controls
DE102010020925B4 (de) 2010-05-10 2014-02-27 Faro Technologies, Inc. Verfahren zum optischen Abtasten und Vermessen einer Umgebung
EP2572462B1 (en) * 2010-05-17 2019-08-28 Telefonaktiebolaget LM Ericsson (publ) Optimizing timing packet transport
GB2501390B (en) 2010-09-08 2014-08-06 Faro Tech Inc A laser scanner or laser tracker having a projector
FR2965131B1 (fr) * 2010-09-20 2012-09-28 Alcatel Lucent Procede de correction d'une asymetrie de delai.
US9168654B2 (en) 2010-11-16 2015-10-27 Faro Technologies, Inc. Coordinate measuring machines with dual layer arm
JP2012191361A (ja) * 2011-03-09 2012-10-04 Mitsubishi Electric Corp 同期制御システム
CN102201983A (zh) * 2011-05-03 2011-09-28 中兴通讯股份有限公司 测量传输链路不对称延时的方法、终端及系统
CN102932905B (zh) * 2011-08-10 2017-06-16 中兴通讯股份有限公司 自动补偿1588链路非对称性时延的实现方法及系统
EP2568756B1 (en) * 2011-09-09 2016-05-11 Huawei Technologies Co., Ltd. Time synchronization method and system, and node device
JP2013092515A (ja) * 2011-10-06 2013-05-16 Sony Corp 周波数差検出装置、周波数差検出方法、およびプログラム
CN103139002B (zh) 2011-11-30 2017-12-29 中兴通讯股份有限公司 网元间的1588时间误差检测方法及装置
CN102546009B (zh) * 2012-01-17 2014-12-24 华为技术有限公司 光纤对称性检测方法及设备
DE102012100609A1 (de) 2012-01-25 2013-07-25 Faro Technologies, Inc. Vorrichtung zum optischen Abtasten und Vermessen einer Umgebung
CN103168440B (zh) * 2012-02-21 2016-08-10 华为技术有限公司 时间路径补偿方法和装置
JP5915379B2 (ja) 2012-05-25 2016-05-11 富士通株式会社 伝送装置および伝送方法
CN104396180A (zh) 2012-06-19 2015-03-04 日本电气株式会社 时钟同步系统、时钟同步方法和存储有时钟同步程序的存储介质
US8997362B2 (en) 2012-07-17 2015-04-07 Faro Technologies, Inc. Portable articulated arm coordinate measuring machine with optical communications bus
US9513107B2 (en) 2012-10-05 2016-12-06 Faro Technologies, Inc. Registration calculation between three-dimensional (3D) scans based on two-dimensional (2D) scan data from a 3D scanner
DE102012109481A1 (de) 2012-10-05 2014-04-10 Faro Technologies, Inc. Vorrichtung zum optischen Abtasten und Vermessen einer Umgebung
US10067231B2 (en) 2012-10-05 2018-09-04 Faro Technologies, Inc. Registration calculation of three-dimensional scanner data performed between scans based on measurements by two-dimensional scanner
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系统、方法及主从光模块设备
WO2014107717A1 (en) 2013-01-07 2014-07-10 Microsemi Frequency And Time Corporation Universal asymmetry correction for packet timing protocols
US9191908B2 (en) * 2013-03-05 2015-11-17 Qualcomm Incorporated Reducing impact of clock drift in wireless devices
US20150078405A1 (en) * 2013-09-18 2015-03-19 Alcatel Lucent Canada Inc. Monitoring clock accuracy in asynchronous traffic environments
MX2016014037A (es) * 2014-05-08 2017-02-14 ERICSSON TELEFON AB L M (publ) Metodo y aparato para determinar el retardo de propagacion en una red de comunicaciones.
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
JP6456787B2 (ja) * 2015-07-14 2019-01-23 日本電信電話株式会社 時刻同期装置および時刻同期方法
JP2017022647A (ja) * 2015-07-14 2017-01-26 日本電信電話株式会社 時刻同期装置および時刻同期方法
DE102015122844A1 (de) 2015-12-27 2017-06-29 Faro Technologies, Inc. 3D-Messvorrichtung mit Batteriepack
US9872189B2 (en) 2016-03-31 2018-01-16 Corning Optical Communications Wireless Ltd Systems and methods for determining asymmetric downlink and uplink propagation delays in a wireless distribution system (WDS) for more accurately determining propagation delay
US10298346B2 (en) * 2016-06-02 2019-05-21 Cisco Technology, Inc. Directed acyclic graph optimization based on timing information for generating optimized network clock
US10142094B2 (en) * 2017-01-24 2018-11-27 Futurewei Technologies, Inc. Synchronization error reduction in common public radio interface (CPRI) passive optical networks (PONs)
WO2019023507A1 (en) * 2017-07-26 2019-01-31 Aviat Networks, Inc. CELL TIMING TECHNIQUE FOR RADIO POINT TO POINT BINDINGS
CN109600186B (zh) * 2018-11-20 2020-06-16 Ut斯达康通讯有限公司 时钟同步方法及装置
US11115142B1 (en) 2018-12-21 2021-09-07 Equinix, Inc. Timing synchronization service and distribution system
US11252068B1 (en) 2018-12-27 2022-02-15 Equinix, Inc. Clock synchronization in a heterogeneous system
US11206095B1 (en) 2019-03-22 2021-12-21 Equinix, Inc. Timing synchronization for clock systems with asymmetric path delay
US11520372B1 (en) 2020-02-12 2022-12-06 Equinix, Inc. Time synchronization using skew estimation
US11431425B2 (en) 2020-09-24 2022-08-30 Corning Research & Development Corporation Measuring an end-to-end delay(s) in a distributed communications system
EP4260616A1 (en) * 2020-12-11 2023-10-18 Nokia Technologies Oy Asymmetric propagation delay detection and response for wireless networks
CN115225187A (zh) * 2021-04-19 2022-10-21 华为技术有限公司 时钟同步方法、光头端及光终端
SE547425C2 (en) * 2021-10-01 2025-09-23 Net Insight Ab Assymetric delay compensation
CN120051947A (zh) * 2022-09-01 2025-05-27 贝尔登解决方案股份有限公司 用于延迟监测的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805196A (en) * 1987-04-29 1989-02-14 Gte Laboratories Incorporated Line delay compensation for digital transmission systems utilizing low power line drivers
JP2947181B2 (ja) * 1996-09-10 1999-09-13 日本電気株式会社 ループバックセル制御システム
JP3019817B2 (ja) * 1997-09-30 2000-03-13 日本電気株式会社 時刻同期方式
DE19917354B4 (de) 1999-04-16 2005-12-22 Siemens Ag Synchronisationsverfahren für eine Haupteinheit und mindestens eine Nebeneiheit mit internen, miteinander zu synchronisierenden Zeitgebern, hiermit korrespodierndes Kommunikationssystem sowie Haupteinheit und Nebeneinheit eines derartigen Kommunikationssystems
US6609077B1 (en) * 2000-05-31 2003-08-19 Teradyne, Inc. ATE timing measurement unit and method
JP4346225B2 (ja) * 2000-08-31 2009-10-21 株式会社アドバンテスト 半導体試験装置及び遅延時間測定方法
JP3493433B2 (ja) * 2001-08-06 2004-02-03 独立行政法人通信総合研究所 コンピュータネットワークの時刻同期方法
US7126800B2 (en) * 2003-07-11 2006-10-24 General Electric Company Method and system for communications channel delay asymmetry compensation using global positioning systems
DE102004055975B4 (de) 2004-11-19 2007-05-03 Bosch Rexroth Ag Synchronisationsverfahren und Steuerungssystem für die zeitliche Synchronisation von Nebeneinheiten, sowie zeitsynchronisierbare Nebeneinheit
US7633870B2 (en) * 2005-04-18 2009-12-15 Symmetricom, Inc. Network forwarding device and method that forward timing packets through the device with a constant delay

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10135602B2 (en) 2009-01-16 2018-11-20 Huawei Technologies Co., Ltd. Method, apparatus, and system for time synchronization of XDSL
WO2010081348A1 (zh) * 2009-01-16 2010-07-22 华为技术有限公司 一种xDSL时间同步方法、装置和系统
US8442175B2 (en) 2009-01-16 2013-05-14 Huawei Technologies Co., Ltd. Method, apparatus, and system for time synchronization of XDSL
WO2011035736A1 (zh) * 2009-09-28 2011-03-31 华为技术有限公司 实现时间同步的方法、装置及网络系统
US8750356B2 (en) 2009-11-27 2014-06-10 Huawei Technologies Co., Ltd. Method, apparatus, and system for measuring asymmetric delay of communication path
WO2011079460A1 (en) * 2009-12-31 2011-07-07 Abb Research Ltd. Method and apparatus for detecting communication channel delay asymmetry
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CN102652409A (zh) * 2009-12-31 2012-08-29 Abb研究有限公司 用于检测信道延迟非对称性的方法和装置
CN102652409B (zh) * 2009-12-31 2015-11-25 Abb研究有限公司 用于检测信道延迟非对称性的方法
US9042412B2 (en) 2009-12-31 2015-05-26 Abb Technology Ltd. Method and apparatus for detecting communication channel delay asymmetry
CN102158945A (zh) * 2010-02-12 2011-08-17 华为技术有限公司 一种数字用户线通信系统中时间同步的方法、装置和系统
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WO2011124113A1 (zh) * 2010-04-09 2011-10-13 华为技术有限公司 获取不对称延迟时间的方法和装置
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WO2013034041A1 (zh) * 2011-09-08 2013-03-14 烽火通信科技股份有限公司 测量光纤不对称性时延的方法及装置
CN103842918A (zh) * 2011-10-06 2014-06-04 索尼公司 时间控制设备、时间控制方法和程序
CN104115432B (zh) * 2012-01-04 2017-09-15 马维尔国际贸易有限公司 用于在时间认知设备之间传达时间信息的方法和装置
CN104115432A (zh) * 2012-01-04 2014-10-22 马维尔国际贸易有限公司 用于在时间认知设备之间传达时间信息的方法和装置
CN102594542A (zh) * 2012-03-22 2012-07-18 杭州华三通信技术有限公司 一种实现精确时间同步的方法和装置
CN104243129A (zh) * 2013-06-10 2014-12-24 索尼公司 接收器、计算时间差的方法以及程序
CN104243129B (zh) * 2013-06-10 2019-04-16 索尼公司 接收器、计算时间差的方法以及计算机可读存储介质
WO2018045857A1 (en) * 2016-09-09 2018-03-15 Huawei Technologies Co., Ltd. System and methods for network synchronization
US10341083B2 (en) 2016-09-09 2019-07-02 Huawei Technologies Co., Ltd. System and methods for network synchronization
CN108347763A (zh) * 2017-01-24 2018-07-31 华为技术有限公司 授时的方法、终端设备和网络设备
US11178632B2 (en) 2017-01-24 2021-11-16 Huawei Technologies Co., Ltd. Time service method, terminal device, and network device
CN109980611A (zh) * 2018-11-28 2019-07-05 南京国电南自电网自动化有限公司 满足ieee c37.94标准的纵联差动保护自适应同步方法和装置
CN109980611B (zh) * 2018-11-28 2021-10-22 南京国电南自电网自动化有限公司 满足ieee c37.94标准的纵联差动保护自适应同步方法和装置
CN114930743A (zh) * 2020-01-02 2022-08-19 思科技术公司 测量光纤不对称性
CN114222360A (zh) * 2021-12-21 2022-03-22 南京欧珀软件科技有限公司 时间同步方法、系统及相关装置
CN114222360B (zh) * 2021-12-21 2023-09-12 南京欧珀软件科技有限公司 时间同步方法、系统及相关装置

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JP2007174680A (ja) 2007-07-05
JP4922750B2 (ja) 2012-04-25

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