电信科学 ›› 2022, Vol. 38 ›› Issue (5): 18-25.doi: 10.11959/j.issn.1000-0801.2022085

• 专题:5G行业应用 • 上一篇    下一篇

面向时间敏感网络的5G无线网增强技术研究

信金灿, 许森, 张化, 熊尚坤, 许话   

  1. 中国电信股份有限公司研究院,北京 102209
  • 修回日期:2022-05-12 出版日期:2022-05-20 发布日期:2022-05-01
  • 作者简介:信金灿(1994- ),女,中国电信股份有限公司研究院工程师,主要研究方向为5G/6G无线网架构和关键技术
    许森(1982- ),男,博士,中国电信股份有限公司研究院高级工程师,主要研究方向为5G/6G无线网架构和关键技术
    张化(1994- ),女,中国电信股份有限公司研究院工程师,主要研究方向为5G/6G无线网架构和关键技术
    熊尚坤(1977- ),男,博士,中国电信股份有限公司研究院高级工程师,主要研究方向为5G移动通信、无线网络演进
    许话(1997- ),女,中国电信股份有限公司研究院工程师,主要研究方向为5G/6G无线信道测量与建模
  • 基金资助:
    国家重点研发计划项目(2020YFB1806700)

Study on 5G wireless network enhancement technology for time sensitive networks

Jincan XIN, Sen XU, Hua ZHANG, Shangkun XIONG, Hua XU   

  1. Research Institute of China Telecom Co., Ltd., Beijing 102209, China
  • Revised:2022-05-12 Online:2022-05-20 Published:2022-05-01
  • Supported by:
    The National Key Research and Development Program of China(2020YFB1806700)

摘要:

5G 确定性网络是目前产业界正在积极推动的全新工业通信技术。为了逐步实现确定性传输,3GPP引入了时间敏感通信技术,与超可靠低时延通信技术相比,进一步在时延抖动和时间同步方面对5G网络进行了增强,从而实现端到端的时间敏感通信服务。介绍了时间敏感通信技术特点和标准进展,时间敏感通信技术以时间敏感网络与5G网络融合的网络架构为基础,通过精确时间同步机制提高时间同步精度,通过服务质量和调度增强机制降低业务时延、提高传输可靠性,通过以太网头压缩技术提高传输效率。

关键词: 5G确定性网络, 时间敏感网络, 时间敏感通信, 精准时间同步, 服务质量增强

Abstract:

5G deterministic network is a new type of industrial communication technology vigorously promoted by the international industry.3GPP had introduced the time-sensitive communication technology to facilitate deterministic transmission.Compared with ultra-reliable and low-latency communication technology, time-sensitive communication technology further enhanced the 5G network in terms of delay jitter and time synchronization to realize the end-to-end time sensitive communication.Characteristics of time sensitive communication technology were analyzed.Based on the time-sensitive networking and 5G network converged architecture, the time-sensitive communication technology reduces the time synchronization error through the accurate time synchronization mechanism.Additionally, the scheduling enhancement mechanism was introduced to reduce the transmission delay.Furthermore, the Ethernet header compression mechanism was proposed to improve transmission efficiency.

Key words: 5G deterministic network, time-sensitive networking, time-sensitive communication, accurate time syn-chronization, quality of service enhancement

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