Construction Method and Verification of High Precision Ground Time Synchronization Links for 5G Mobile Base Stations

WU Yu

doi:10.13756/j.gtxyj.2021.01.015

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Construction Method and Verification of High Precision Ground Time Synchronization Links for 5G Mobile Base Stations

- Construction Method and Verification of High Precision Ground Time Synchronization Links for 5G Mobile Base Stations
- Study on Optical Communications Issue 1, Pages: 71-78(2021)
- 作者机构：
  
  中国移动通信集团江苏有限公司规划技术部，南京　210029
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2021.01.015
  CLC： TN929.5
- Published：10 February 2021，
  
  Received：10 August 2020，
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WU Yu. Construction Method and Verification of High Precision Ground Time Synchronization Links for 5G Mobile Base Stations. [J]. Study on Optical Communications (1):71-78(2021)
DOI：

WU Yu. Construction Method and Verification of High Precision Ground Time Synchronization Links for 5G Mobile Base Stations. [J]. Study on Optical Communications (1):71-78(2021) DOI： 10.13756/j.gtxyj.2021.01.015.

摘要

为满足第五代移动通信（5G）基站和边缘计算节点对高精度地面授时的需求，文章提出了构建端到端高精度地面授时链路的方法和后续不依赖卫星的时间同步网组网思路，并通过苏州现网部署和实测展示了72 h内误差<28.4 ns的高精度链路传递授时指标，验证了构建方法的可行性。最后对不依赖卫星组网等后续关键问题进行了分析，指出了下一步改进的方向。

Abstract

To meet the demand of 5G mobile base stations and edge computing nodes for high-precision ground timing system

the construction method of end-to-end ground time synchronization links and the subsequent time synchronization network planning ideas are proposed

which do not rely on satellite timing system. The feasibility of the proposed method is verified by conducting evaluation experiments in the present 5G mobile network of SuZhou

which demonstrate the high and stable time accuracy within 24.8 ns for 72 hours. Key issues such as satellite independent time synchronization network are also analyzed to point out the future improvement direction.

关键词

时间同步第五代移动通信高精度架构演进

Keywords

time synchronization5Ghigh precisionarchitectureevolution

references

胡昌军, 潘峰, 缪新育, 等.5G同步分析及应对措施探讨[J].信息通信技术与政策, 2018(9): 46-49.

李忠文, 王科, 龙波.面向5G的高精度时间同步网实现方案[J].电信技术, 2018(5): 43-46.

于佳亮.通信同步网铯原子钟应用探讨[J].电信技术, 2017(1): 79-81.

Barbera S, Pedersen K I, Rosa C, et al. Synchronized Rach-Less Handover Solution for LTE Heterogeneous Networks[C]//International Symposium on Wireless Communication Systems(ISWCS). Brussels, Belgium: IEEE, 2015: 755-759.

TS 38.104(Release 16)-2020, Base Station(BS)Radio Transmission and Reception[S].

eCPRI Specification V2.0-2019, Interface Specification, Common Public Radio Interface. eCPRI Interface Specification[S].

eCPRI Transport Network V1.2-2018, Requirements Specification, Common Public Radio Interface. Requirements for the eCPRI Transport Network[S].

YD/T 2375-2011，高精度时间同步技术要求[S].

李慧茹, 李志刚.通过卫星双向双频观测对电离层时延的测定[J].时间频率学报, 2005, 28(1): 31-38.

赵坤娟, 杨旭海, 杨海彦, 等.基于北斗GEO卫星双频观测值连续监测电离层延迟[J].宇航计测技术, 2018, 38(4): 67-72.

樊多盛, 刘娅, 李孝辉, 等.基于卫星共视的钟驾驭方法研究[J].时间频率学报, 2018, 41(4): 300-306.

刘娅, 陈瑞琼, 赵志雄, 等.基于卫星共视的标准时间远程高精度复现方法研究[J].时间频率学报, 2018, 41(3): 194-199.

刘琼瑶, 刘音华, 刘正阳, 等.应用于UTC(NTSC)远程复现终端中的时间间隔计数器的设计与验证[J].时间频率学报, 2019, 42(1): 26-32.

方子衿, 徐旺生, 方琼, 等.基于FlexE的1588时间同步技术的设计与实现[J].移动通信, 2018, 42(8): 79-83.

李允博, 李晗, 韩柳燕. OTN传递时间同步信息技术探讨[J].电信技术, 2010(6): 23-26.

Cheng H H, Wu G L, Zuo F X, et al. Time Transfer Through the Optical Supervisory Channel in Wavelength Division Multiplexing Systems[J]. Optics Letters, 2019, 44(21): 5206.

华锋, 武成宾.调顶信号对城域波分复用系统的影响[J].邮电设计技术, 2015(11): 24-27.

梁益丰, 许江宁, 吴苗, 等.光纤时频同步技术研究现状及发展趋势[J].激光与光电子学进展, 2020, 57(5): 050004.

韩柳燕, 李晗, 李允博.组建高精度时间同步传送网时间源探讨[C]//中国通信学会信息通信网络技术委员会2011年年会论文集(上册).北京，中国: 中国通信学会, 2011: 734-738.

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