BR112012021206A2 - método e dispositivo para sincronização de tempo - Google Patents

método e dispositivo para sincronização de tempo

Info

Publication number
BR112012021206A2
BR112012021206A2 BR112012021206A BR112012021206A BR112012021206A2 BR 112012021206 A2 BR112012021206 A2 BR 112012021206A2 BR 112012021206 A BR112012021206 A BR 112012021206A BR 112012021206 A BR112012021206 A BR 112012021206A BR 112012021206 A2 BR112012021206 A2 BR 112012021206A2
Authority
BR
Brazil
Prior art keywords
synchronization
clock
time synchronization
port
implemented
Prior art date
Application number
BR112012021206A
Other languages
English (en)
Inventor
Congqi Li
Hao Liu
Jianmei Zhang
Tianhai Chang
Xinyu Shen
Zhiguo Liu
Original Assignee
Huawei Tech Co Ltd
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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BR112012021206A2 publication Critical patent/BR112012021206A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • 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
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing

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)
  • Time-Division Multiplex Systems (AREA)

Abstract

método e dispositivo para sincronização de tempo. um método e um dispositivo para sincronização de tempo são descritos de acordo com as modalidades da presente invenção. o método inclui: selecionar, por um dispositivo escravo, uma porta de uma linha bidirecional de fibra única com uma porta de sincronização de um protocolo de relógio 1588; especificar um modo de trabalho da porta de sincronização; trocar um pacote de sincronização de acordo com o modo de trabalho; obter a informação de tempo de tranmissão e restaurar um relógio de sistema de acordo com o pacote de sincronização de relógio 1588; e ajustar o relógio de sistema de acordo com o modo de trabalho e a informação de tempo de tranmissão. o dispositivo inclui: um módulo de processamento de linha, um módulo de recuperação de relógio e um módulo de ajuste de relógio. através do método e do dispositivo,a sincronização de tempo de zero erro é implantada, e no caso de atraso de trajeto não fixado, a sincronização de tempo pode ser também implantada.
BR112012021206A 2010-07-23 2010-07-23 método e dispositivo para sincronização de tempo BR112012021206A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/075446 WO2011085585A1 (zh) 2010-07-23 2010-07-23 时间同步的方法和设备

Publications (1)

Publication Number Publication Date
BR112012021206A2 true BR112012021206A2 (pt) 2016-05-17

Family

ID=44303822

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012021206A BR112012021206A2 (pt) 2010-07-23 2010-07-23 método e dispositivo para sincronização de tempo

Country Status (6)

Country Link
US (1) US8817823B2 (pt)
EP (1) EP2528254B1 (pt)
CN (1) CN102439884B (pt)
BR (1) BR112012021206A2 (pt)
ES (1) ES2604477T3 (pt)
WO (1) WO2011085585A1 (pt)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2506470B1 (en) * 2011-03-29 2013-05-29 Alcatel Lucent Method, apparatus and system for time distribution in a telecommunications network
CN103210690B (zh) 2011-09-09 2014-12-31 华为技术有限公司 一种时间同步的方法和系统及节点设备
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
WO2012092892A2 (zh) 2012-02-01 2012-07-12 华为技术有限公司 时间同步方法和设备及系统
CN103873178A (zh) * 2012-12-13 2014-06-18 郑州威科姆科技股份有限公司 广域时间同步系统授时误差的集中巡检方法
CN103346866B (zh) * 2013-07-19 2016-01-27 武汉虹信通信技术有限责任公司 在微波系统中传输1588v2报文的方法
CN103957233B (zh) * 2014-03-26 2017-03-15 哈尔滨工业大学 基于处理器分核以及虚拟机的实时通信平台
CN104092509A (zh) * 2014-06-13 2014-10-08 华电众信（北京）技术有限公司 时间数据处理方法、装置及系统
CN104168077B (zh) * 2014-07-04 2017-02-08 上海交通大学 高精度光纤双向时间比对方法与系统
KR20160014157A (ko) * 2014-07-28 2016-02-11 주식회사 오이솔루션 광 트랜시버
CN104317354B (zh) 2014-11-03 2018-03-30 武汉数字派特科技有限公司 一种系统间全局时钟的确定方法和结构
EP3231111B1 (en) * 2014-12-11 2024-07-24 Khalifa University of Science and Technology Method and devices for clock synchronization over links with asymmetric transmission rates
US9820248B2 (en) * 2015-06-30 2017-11-14 Globalfoundries Inc. Network clock synchronization
CN106452641B (zh) * 2015-08-04 2018-07-20 四川泰富地面北斗科技股份有限公司 一种采用等时延波长对传输高精度时间信号的装置及方法
CN105119999A (zh) * 2015-09-07 2015-12-02 广东欧珀移动通信有限公司 一种同步运行相同应用程序的方法、系统及主、从移动终端
CN108023723B (zh) * 2016-11-04 2021-07-09 华为技术有限公司 频率同步的方法以及从时钟
CN109120469B (zh) * 2017-06-26 2021-11-30 华为技术有限公司 一种线路传输延时计算方法及装置
WO2019020170A1 (en) * 2017-07-25 2019-01-31 Telefonaktiebolaget Lm Ericsson (Publ) METHODS, APPARATUS AND COMPUTER-READABLE MEDIA FOR SYNCHRONIZATION OVER AN OPTICAL NETWORK
US11290970B2 (en) * 2018-07-05 2022-03-29 Cable Television Laboratories, lnc. Edge communication networks with edge-located clocks and associated methods
CN109508510B (zh) * 2018-12-20 2022-10-28 国网河南省电力公司焦作供电公司 一种基于改进的卡尔曼滤波的铷原子钟参数估计算法
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
JP7230690B2 (ja) * 2019-05-28 2023-03-01 富士通株式会社 時刻同期プログラム，情報処理装置及び時刻同期方法
CN112039621B (zh) * 2019-06-04 2022-11-29 中国信息通信研究院 一种时间同步方法和系统
US20200266967A1 (en) * 2020-02-05 2020-08-20 Intel Corporation Bi-directional buffer with circuit protection time synchronization
CN115765912A (zh) * 2020-04-14 2023-03-07 华为技术有限公司 参数配置方法、设备及系统
EP4229783A1 (en) * 2020-10-16 2023-08-23 Telefonaktiebolaget LM Ericsson (publ) Fronthaul network units and methods therein for synchronization over a single optical fiber of in a frontahul network
CN112821979A (zh) * 2021-04-16 2021-05-18 浙江国利信安科技有限公司 一种去中心化的快速网络时间同步方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070070299A (ko) * 2005-07-06 2007-07-04 삼성전자주식회사 레지덴셜 이더넷 시스템에서의 시간 동기화 방법
WO2008093600A1 (ja) * 2007-01-29 2008-08-07 Nec Corporation 時刻同期システム、時刻同期方法、及びプログラム
JP5188170B2 (ja) * 2007-12-21 2013-04-24 株式会社日立製作所 ネットワークシステム及びｏｌｔ
CN101232457B (zh) * 2008-02-22 2011-04-27 浙江大学 一种基于ieee1588协议的高精度实时同步方法
CN101431385B (zh) * 2008-08-26 2012-03-07 中兴通讯股份有限公司 一种无源光网络中频率及时间的同步方法
CN101729180A (zh) * 2008-10-21 2010-06-09 华为技术有限公司 精准时钟同步方法及系统、精准时钟频率/时间同步装置

Also Published As

Publication number Publication date
WO2011085585A1 (zh) 2011-07-21
US8817823B2 (en) 2014-08-26
ES2604477T3 (es) 2017-03-07
CN102439884A (zh) 2012-05-02
CN102439884B (zh) 2013-03-20
US20130121352A1 (en) 2013-05-16
EP2528254B1 (en) 2016-09-07
EP2528254A1 (en) 2012-11-28
EP2528254A4 (en) 2013-01-23

Similar Documents

Publication Publication Date Title
BR112012021206A2 (pt) método e dispositivo para sincronização de tempo
NO20090295L (no) Substituerte heteroarylderivater
PH12014501134B1 (en) 2',4'-difluoro-2'-methyl substituted nucleoside derivatives as inhibitors of hcv rna replication
NO20052719D0 (no) Synkronisering av informasjonsenheter med tilhorende referanser
TW200943821A (en) Long-reach ethernet for 1000BASE-T and 10GBASE-T
DK1881967T3 (da) Substituerede benzo (D) isoaxol-3-yl-amin-forbindelser som analgetika
UY30444A1 (es) Derivados de pirimidina, procesos para su preparacinn, composiciones farmaccuticos y usos de los mismos.
UA99129C2 (ru) Производные оксадиазола и их применение в качестве потенциирующих средств рецепторов глутамата
BR112013018975A2 (pt) processo para o preparo de 4-amino-5-fluoro-3-halo-6-(substituído)picolinatos
MX2008013582A (es) Derivados de pirimidina como inhibidores de fosfatidilinositol-3-c inasa.
UY32174A (es) Nuevos heterociclos sustituidos, composiciones farmaceuticas conteniendolos, procedimientos de preparacion y aplicaciones
MY151986A (en) Adamantyl diamide derivatives and uses of same
MX350810B (es) Derivados de los nucleosidos sustituidos en 4 '-azido, 3 '-fluoro como inhibidores de la replicacion del rna del vhc.
NO20085099L (no) Puritonderivativer som HM74A agonister
BR112014018847A8 (pt) Dispositivo eletrônico inteligente
BR112012008806A2 (pt) controle sem fio de dispositivos de comutação de rede de energia.
MX2008014004A (es) 1h-benzimidazol-4-carboxamidas sustituidas son inhibidores de parp potentes.
BR112014029407A8 (pt) método de envio de dados de um terminal, método de encaminhamento de dados de repetidor, terminal de envio de dados e repetidor de encaminhamento de dados
MX2008013522A (es) Derivados de purina como activadores del receptor de adenosina.
BR112013029013A2 (pt) Dispositivo de oclusão
MX337597B (es) Analogos de acido epoxieicosatrienoico y metodos para fabricar y usar los mismos.
WO2013185111A3 (en) Methods and apparatus for synchronization among integrated circuits within a wireless network
UA103500C2 (uk) Сульфоксимінзаміщені анілінопіримідинові похідні як cdk-інгібітори, їх одержання й застосування як лікарських засобів
WO2011026151A3 (en) Method and apparatus for enhanced packet traffic arbitration
NZ593787A (en) Lyophilised dabigatran

Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]