CN114270913A - 一种时间敏感网络时间同步方法及装置 - Google Patents

一种时间敏感网络时间同步方法及装置 Download PDF

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Publication number
CN114270913A
CN114270913A CN202080059274.1A CN202080059274A CN114270913A CN 114270913 A CN114270913 A CN 114270913A CN 202080059274 A CN202080059274 A CN 202080059274A CN 114270913 A CN114270913 A CN 114270913A
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China
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time
tsn
synchronization information
bridge
time synchronization
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CN202080059274.1A
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CN114270913B (zh
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强鹂
常俊仁
张向东
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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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2212/00—Encapsulation of packets

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

Abstract

本申请公开了一种TSN时间同步方法及装置，用以降低TSN同步时无线通信系统处理成本较高的问题。该方法包括：第一装置接收来自第二装置的第一TSN时间同步信息。第一装置确定第一TSN时间同步信息不携带第一时间，第一时间为第二装置接收第一TSN时间同步信息时无线通信系统的系统时间。第一装置从本地获取网桥驻留时间，并将网桥驻留时间写入第一TSN时间同步信息后进行发送。通过该方案，第一装置可以在本地存储网桥驻留时间，从而在TSN时间同步信息中不携带第二装置的接收时间时，在本地获取网桥驻留时间，而不需要重新进行计算，从而可以降低网桥驻留时间的计算频率。

Description

PCT国内申请，说明书已公开。

Claims (16)

  1. PCT国内申请，权利要求书已公开。
CN202080059274.1A 2020-01-22 2020-01-22 一种时间敏感网络时间同步方法及装置 Active CN114270913B (zh)

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EP (1) EP4072187A4 (zh)
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WO2024011938A1 (zh) * 2022-07-15 2024-01-18 中兴通讯股份有限公司 报文处理方法、设备和存储介质

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KR20210144213A (ko) * 2020-05-21 2021-11-30 삼성전자주식회사 통신 시스템에서 동기화 정보를 전송하기 위한 장치 및 방법
CN115086247A (zh) * 2021-03-02 2022-09-20 中兴通讯股份有限公司 帧抢占方法、装置、设备和存储介质

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WO2018182688A1 (en) * 2017-03-31 2018-10-04 Intel Corporation Trigger-based deterministic access in time synchronized next generation wi-fi networks
US20190253339A1 (en) * 2016-07-19 2019-08-15 Schneider Electric Industries Sas Time-Sensitive Software Defined Networking
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WO2018182688A1 (en) * 2017-03-31 2018-10-04 Intel Corporation Trigger-based deterministic access in time synchronized next generation wi-fi networks
WO2019243669A1 (en) * 2018-06-21 2019-12-26 Nokia Technologies Oy Time-synchronized radio bearer for supporting precision timing protocol (ptp) based time sensitive network (tsn) applications
CN110611924A (zh) * 2019-09-27 2019-12-24 腾讯科技（深圳）有限公司 实现时间敏感网络的数据传输的方法、相关设备及介质

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EP4072187A4 (en) 2022-12-28
CN114270913B (zh) 2024-08-09
EP4072187A1 (en) 2022-10-12
US20220353834A1 (en) 2022-11-03
WO2021147044A1 (zh) 2021-07-29

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