CN106105103A - 时钟同步方法、设备及通信系统 - Google Patents

时钟同步方法、设备及通信系统 Download PDF

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Publication number
CN106105103A
CN106105103A CN201480076842.3A CN201480076842A CN106105103A CN 106105103 A CN106105103 A CN 106105103A CN 201480076842 A CN201480076842 A CN 201480076842A CN 106105103 A CN106105103 A CN 106105103A
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China
Prior art keywords
clock
node
data set
zone
synchronous
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CN201480076842.3A
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CN106105103B (zh
Inventor
张锦芳
李波杰
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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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H04B7/2687—Inter base stations synchronisation
    • H04B7/269—Master/slave synchronisation
    • 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
    • H04J3/0641—Change of the master or reference, e.g. take-over or failure of the master
    • 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)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

本发明实施例提供一种时钟同步方法、设备及通信系统。本方法包括：网络中的第一节点设备根据自身的第一时钟数据集和所述网络中的其它节点设备的第一时钟数据集，确定第一主时钟，并与所述第一主时钟同步，其中，所述第一时钟数据集中包括节点设备的第一时钟域选择参数；所述第一节点设备根据自身的第二时钟数据集和与所述第一节点设备同属于第一节点时钟域中的其它节点设备的第二时钟数据集，确定第二主时钟，并与所述第二主时钟同步，其中，所述第二时钟数据集中包括节点设备的第二时钟域选择参数，所述节点时钟域为第二时钟域。本发明实施例能够进一步提升无线接入网时钟同步的精度。

Description

PCT国内申请，说明书已公开。

Claims (1)

  1. PCT国内申请，权利要求书已公开。
CN201480076842.3A 2014-03-05 2014-03-05 时钟同步方法、设备及通信系统 Active CN106105103B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/072912 WO2015131350A1 (zh) 2014-03-05 2014-03-05 时钟同步方法、设备及通信系统

Publications (2)

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CN106105103A true CN106105103A (zh) 2016-11-09
CN106105103B CN106105103B (zh) 2020-09-18

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US (1) US10178636B2 (zh)
EP (1) EP3104556B1 (zh)
CN (1) CN106105103B (zh)
WO (1) WO2015131350A1 (zh)

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CN109218007A (zh) * 2017-07-03 2019-01-15 中兴通讯股份有限公司 路径选择方法、设备及存储介质
CN115250159A (zh) * 2022-07-18 2022-10-28 重庆长安汽车股份有限公司 时间同步方法、装置、电子设备、存储介质及程序产品
WO2023061012A1 (zh) * 2021-10-12 2023-04-20 华为技术有限公司 时钟同步方法、设备及系统

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CN105634714A (zh) * 2014-10-28 2016-06-01 中兴通讯股份有限公司 一种跨域时钟同步方法、装置和系统
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
US10922302B2 (en) * 2017-08-07 2021-02-16 Vital Connect, Inc. Data time stamps
JP7116706B2 (ja) * 2019-05-09 2022-08-10 株式会社日立製作所 通信制御装置および通信制御方法
US11223437B1 (en) * 2020-08-24 2022-01-11 Ciena Corporation Differential clock recovery using a global reference time

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US5479409A (en) * 1992-09-15 1995-12-26 Alcatel N.V. Method of transmitting timing advance data to a mobile station in a cellular mobile radio network and corresponding mobile station, base station controller and transmission system
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CN109218007A (zh) * 2017-07-03 2019-01-15 中兴通讯股份有限公司 路径选择方法、设备及存储介质
WO2023061012A1 (zh) * 2021-10-12 2023-04-20 华为技术有限公司 时钟同步方法、设备及系统
CN115250159A (zh) * 2022-07-18 2022-10-28 重庆长安汽车股份有限公司 时间同步方法、装置、电子设备、存储介质及程序产品

Also Published As

Publication number Publication date
CN106105103B (zh) 2020-09-18
US10178636B2 (en) 2019-01-08
EP3104556A1 (en) 2016-12-14
WO2015131350A1 (zh) 2015-09-11
US20160374041A1 (en) 2016-12-22
EP3104556A4 (en) 2017-03-15
EP3104556B1 (en) 2023-07-05

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