系统工程与电子技术 ›› 2020, Vol. 42 ›› Issue (9): 2107-2115.doi: 10.3969/j.issn.1001-506X.2020.09.29

• 通信与网络 • 上一篇    下一篇

基于GNSS的5G基站高精度时间同步组网算法

潘党飞1,2(), 刘文学2(), 袁洪2(), 葛建2,*()   

  1. 1. 中国科学院光电研究院, 北京 100089
    2. 中国科学院大学, 北京 100089
  • 收稿日期:2019-12-18 出版日期:2020-08-26 发布日期:2020-08-26
  • 通讯作者: 葛建 E-mail:pandangfei19@163.com;liuwenxue@aoe.ac.cn;yuanh@aoe.ac.cn;jian.ge@aoe.ac.cn
  • 作者简介:潘党飞(1994-),男,硕士研究生,主要研究方向为高精度卫星导航接收机信号处理算法研究。E-mail:pandangfei19@163.com|刘文学(1985-),男,博士,主要研究方向为卫星导航相关的软硬件设计、信号处理算法。E-mail:liuwenxue@aoe.ac.cn|袁洪(1968-),男,研究员,博士研究生导师,博士,主要研究方向为卫星导航相关的系统设计、信号与信息处理算法。E-mail:yuanh@aoe.ac.cn

High-precision time synchronization networking algorithm for 5G base station based on GNSS

Dangfei PAN1,2(), Wenxue LIU2(), Hong YUAN2(), Jian GE2,*()   

  1. 1. Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100089, China
    2. University of Chinese Academy of Sciences, Beijing 100089, China
  • Received:2019-12-18 Online:2020-08-26 Published:2020-08-26
  • Contact: Jian GE E-mail:pandangfei19@163.com;liuwenxue@aoe.ac.cn;yuanh@aoe.ac.cn;jian.ge@aoe.ac.cn

摘要:

基于物联网定位等需求,增强5G移动通信基站之间的时间同步精度有望达到纳秒级。基于“邻域相似性”原理,针对5G基站利用全球卫星导航系统(global navigation satellite system, GNSS)进行授时时,由于可视卫星集合不同造成接收机之间时间同步误差较大,提出一种基站GNSS接收机组网算法,用以消除邻域差异,提高相互邻近的各5G基站之间的时间同步精度,并对该算法进行了实验验证。结果表明,该算法有效解决了由于可视卫星集合不同造成的时间同步误差较大的问题,提高了5G基站之间的时间同步精度。

关键词: 5G基站, 时间同步, GNSS授时, 组网算法

Abstract:

Based on the requirements of internet of things positioning, the accuracy of time synchronization among 5G mobile communication base stations is expected to reach the nanosecond level. Based on the principle of "neighborhood similarity", an algorithm is proposed to eliminate neighborhood differences and improve the accuracy of time synchronization among 5G base stations due to the large error of time synchronization among the receivers as the different sets of visual satellites during time service of 5G base stations through the global navigation satellite system (GNSS). The algorithm is verified by experiments. The results show that the algorithm effectively solves the problem of large time synchronization error caused by different sets of visual satellites and improves the accuracy of time synchronization among 5G base stations.

Key words: 5G base station, time synchronization, global narigation satellite system (GNSS) time service, networking algorithm

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