CN111095860A - 时钟同步的方法和装置 - Google Patents

时钟同步的方法和装置 Download PDF

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CN111095860A
CN111095860A CN201780094495.0A CN201780094495A CN111095860A CN 111095860 A CN111095860 A CN 111095860A CN 201780094495 A CN201780094495 A CN 201780094495A CN 111095860 A CN111095860 A CN 111095860A
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CN111095860B (zh
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何向
祁云磊
陈井凤
林涛
宋军民
王心远
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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
    • 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
    • H04J3/0647—Synchronisation among TDM nodes
    • H04J3/065—Synchronisation among TDM nodes using timestamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0079—Receiver details
    • 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
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1652—Optical Transport Network [OTN]
    • H04J3/1658—Optical Transport Network [OTN] carrying packets or ATM cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0073—Services, e.g. multimedia, GOS, QOS
    • H04J2203/0082—Interaction of SDH with non-ATM protocols
    • H04J2203/0085—Support of Ethernet

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

本申请提供了一种时钟同步的方法，包括：接收装置通过多个物理层模块PHY接收多个数据块，该多个数据块包括多个首位数据块；接收装置对多个数据块进行时间戳采样生成多个接收时间戳；接收装置以第一接收时间戳为基准对齐多个接收时间戳；接收装置根据所述多个数据块生成时钟同步报文；接收装置将第二接收时间戳的值写入该时钟同步报文，其中，第二接收时间戳为基于对齐后的多个接收时间戳确定的第二数据块的接收时间戳，第二数据块为多个数据块中用于进行发送时间戳采样的数据块。本申请提供的时钟同步的方法可以修正同一个FlexE客户的多个数据块之间到达接收装置后出现偏斜。

Description

PCT国内申请，说明书已公开。

Claims (12)

  1. PCT国内申请，权利要求书已公开。
CN201780094495.0A 2017-10-30 2017-10-30 时钟同步的方法和装置 Active CN111095860B (zh)

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CN112822125B (zh) * 2020-04-08 2023-08-01 中兴通讯股份有限公司 一种业务流的传输方法、装置、设备及存储介质
CN112929119B (zh) * 2021-02-04 2021-10-01 烽火通信科技股份有限公司 分布式系统链路切换方法、装置、设备及存储介质
CN115277870B (zh) * 2021-04-14 2023-11-28 施耐德电气（中国）有限公司 通信数据处理装置和数据通信装置及对应方法、通信系统
CN115834921A (zh) * 2022-11-17 2023-03-21 北京奇艺世纪科技有限公司 视频处理方法、装置、服务器、存储介质及程序产品

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US11552721B2 (en) 2023-01-10
WO2019084732A1 (zh) 2019-05-09
AU2017437863A1 (en) 2020-05-21
AU2017437863B2 (en) 2023-04-06
US20200259578A1 (en) 2020-08-13
US20230138058A1 (en) 2023-05-04
EP3694140A1 (en) 2020-08-12
EP3694140A4 (en) 2020-10-28
CA3081109C (en) 2024-05-21
US11843452B2 (en) 2023-12-12
US11108485B2 (en) 2021-08-31
BR112020008501A2 (pt) 2020-10-20
CA3081109A1 (en) 2019-05-09
CN111095860B (zh) 2022-04-12
US20210376943A1 (en) 2021-12-02
CN114944910A (zh) 2022-08-26

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