Time Source Sinking Deployment Technology Research for 5G Synchronization Network

CHEN Le-xian; CHEN Zhao-hui

doi:10.13756/j.gtxyj.2022.03.013

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Time Source Sinking Deployment Technology Research for 5G Synchronization Network

更新时间：2022-06-15

- Time Source Sinking Deployment Technology Research for 5G Synchronization Network
- Study on Optical Communications Issue 3, Pages: 72-78(2022)
- 作者机构：
  
  1.中国电信股份有限公司上海分公司，上海　200000
  2.烽火通信科技股份有限公司，武汉　430070
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2022.03.013
  CLC： TP393
- Published：10 June 2022，
  
  Received：10 September 2021，
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CHEN Le-xian, CHEN Zhao-hui. Time Source Sinking Deployment Technology Research for 5G Synchronization Network. [J]. Study on Optical Communications (3):72-78(2022)
DOI：

CHEN Le-xian, CHEN Zhao-hui. Time Source Sinking Deployment Technology Research for 5G Synchronization Network. [J]. Study on Optical Communications (3):72-78(2022) DOI： 10.13756/j.gtxyj.2022.03.013.

摘要

文章对第五代移动通信技术(5G)同步网时间源下沉部署方案进行了深入分析。对比集中式部署方案，分析了源下沉部署的应用场景、优势和部署思路。并对时间源下沉部署时带来的同步域划分、同步保护和管控等技术进行了分析，提出了相应的解决方案和建议。最后结合国内同步网的实践，对时间源下沉应用的演进模式进行了分析，为正在进行中的5G同步网组网技术研究和规模部署提供了参考。

Abstract

In this paper

time source sinking deployment scheme for the 5th Generation Mobile Communication Technology (5G) synchronization network is analyzed. Compared with the centralized deployment scheme

this paper analyzes the application scenario

advantages and deployment ideas of the source sinking deployment. The techniques of synchronization domain division

synchronization protection and control in the scheme are discussed

and corresponding solutions and suggestions are proposed. Finally

combined with the practice of domestic synchronization network

the evolution mode of time source sinking application is analyzed. The analysis results provide guidance for ongoing 5G synchronous networking technology research and scale deployment.

关键词

同步网时间源下沉部署时钟域

Keywords

synchronization networktime sourcesink deploymentclock domain

references

IMT-2020(5G). 5G承载网络构架和技术方案白皮书[R]. 北京: IMT-2020(5G)推进组, 2018.

IMT-2020(5G). 5G同步组网架构及关键技术白皮书[R]. 北京: IMT-2020(5G)推进组, 2019.

ITU-T G. 8272-2018, Timing Characteristics of Primary Reference Time Clocks[S].

ITU-T G8275.1-2020, Precision Time Protocol Telecom Profile for Phase/Time Synchronization with Full Timing Support from the Network[S].

IEEE Std 1588-2019, IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems[S].

IMT-2020(5G). 面向5G的扁平化同步组网方案研究白皮书[R]. 北京: IMT-2020(5G)推进组, 2020.

中国电信. 支持BDS授时的地面同步网络建设指引[R]. 北京: 中国电信集团公司, 2021.

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