面向工业互联网的5G-U与时间敏感网络融合架构与技术

doi:10.11959/j.issn.1000-436x.2021161

通信学报 ›› 2021, Vol. 42 ›› Issue (10): 43-54.doi: 10.11959/j.issn.1000-436x.2021161

面向工业互联网的5G-U与时间敏感网络融合架构与技术

蔡岳平¹^,²^,³, 李栋¹, 许驰¹, 王振¹, 张潇文¹

¹ 重庆大学微电子与通信工程学院，重庆 400030
² 信息物理社会可信服务计算教育部重点实验室（重庆大学），重庆 400030
³ 空天地网络互联与信息融合重庆市重点实验室，重庆 400030
⁴ 中国科学院沈阳自动化研究所机器人学国家重点实验室，辽宁沈阳 110016
⁵ 机械工业仪器仪表综合技术经济研究所，北京 100055

修回日期:2021-07-29 出版日期:2021-10-25 发布日期:2021-10-01
作者简介:蔡岳平（1980- ），男，江苏丹阳人，博士，重庆大学副教授，主要研究方向为工业互联网、确定性网络、5G/6G 网络、数据中心网络、算力网络等
李栋（1986- ），男，辽宁沈阳人，博士，中国科学院沈阳自动化研究所研究员，主要研究方向为工业控制网络、工业5G、TSN等
许驰（1987- ），男，辽宁沈阳人，博士，中国科学院沈阳自动化研究所副研究员，主要研究方向为工业无线网络、5G URLLC等
王振（1987- ），男，北京人，机械工业仪器仪表综合技术经济研究所高级工程师，主要研究方向为工业网络、边缘计算、工业测控等
张潇文（1998- ），女，山西太原人，重庆大学硕士生，主要研究方向为时间敏感网络和5G网络
基金资助:
国家重点研发计划基金资助项目(2020YFB1710900);重庆市技术创新与应用发展专项5G重大主题专项基金资助项目(cstc2019jscx-zdztzxX0023);重庆市自然科学基金资助项目(cstc2019jcyj-msxmX0375)

Integrating 5G-U with time-sensitive networking for industrial Internet: architectures and technologies

Yueping CAI¹^,²^,³, Dong LI¹, Chi XU¹, Zhen WANG¹, Xiaowen ZHANG¹

¹ College of Microelectronic and Communication Engineering, Chongqing University, Chongqing 400030, China
² Key Laboratory of Dependable Service Computing in Cyber Physical Society Ministry of Education, Chongqing University, Chongqing 400030, China
³ Chongqing Key Laboratory of Space Information Network and Intelligent Information Fusion, Chongqing 400030, China
⁴ State Key Laboratory of Robotics, Shenyang Institute of Automation Chinese Academy of Sciences, Shenyang 110016, China
⁵ Instrumentation Technology and Economy Institute (ITEI), Beijing 100055, China

Revised:2021-07-29 Online:2021-10-25 Published:2021-10-01
Supported by:
The National Key Research and Development Program of China(2020YFB1710900);Chongqing Technolo-gy Innovation and Application Development Key Project on 5G(cstc2019jscx-zdztzxX0023);The Natural Science Foundation of Chongqing(cstc2019jcyj-msxmX0375)

摘要/Abstract

摘要：

工业互联网是工业4.0的关键使能技术，而网络是工业互联网的基础。首先分析了典型工业互联网业务流量类型和需求，以及时间敏感网络（TSN）和5G-U作为工业互联网网络的适配性；接着探讨了5G-U与TSN融合的4种架构模式：5G-U作为TSN的网络、链路、网桥/交换机模式，及TSN作为5G-U承载网络模式；然后研究了5G-U与TSN融合的关键技术，包括时间同步平面的融合、数据平面流量QoS框架与可靠桥接机制的融合以及管控平面的融合；最后讨论了5G-U与TSN融合的研究挑战和发展趋势。

关键词: 时间敏感网络, 5G-U, 时间同步, 数据平面, 控制平面

Abstract:

Industrial Internet is one of enabling technologies for Industry 4.0.Networking is one indispensible technology of industrial Internet.The traffic types and communication requirements of typical industrial services were analyzed first.TSN (time-sensitive networking) and 5G-U (5G unlicensed) were considered as the promising wireline and wireless solutions for industrial Internet, respectively.The integration network architectures of 5G-U and TSN were presented based on four models, which included 5G-U as TSN networks, links, bridges/switches, and TSN as transport networks of 5G-U.The key technologies of the integrated architectures were integrations of time-synchronization plane, data plane, and control plane.Finally, research challenges and potential research directions in the filed were discussed.

Key words: time-sensitive networking, 5G unlicensed, time synchronization, data plane, control plane

中图分类号:

TP393

蔡岳平, 李栋, 许驰, 王振, 张潇文. 面向工业互联网的5G-U与时间敏感网络融合架构与技术[J]. 通信学报, 2021, 42(10): 43-54.

Yueping CAI, Dong LI, Chi XU, Zhen WANG, Xiaowen ZHANG. Integrating 5G-U with time-sensitive networking for industrial Internet: architectures and technologies[J]. Journal on Communications, 2021, 42(10): 43-54.

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流量类型	周期性/偶发性	典型周期	数据传输保证	抖动容限	数据分组丢失容限	典型数据大小/B	关键度	流量优先级
实时同步	周期性	100 μs~2 ms	最终期限	0	0	固定30~100	高	6
循环同步	周期性	500 μs~1 ms	时延界(t)	不超过t	0	固定50~1 000	高	5
循环异步	周期性	2 ms~20 ms	时延界(t)	不超过t	1~4帧	固定50~1 000	高	5
控制事件	偶发性	10 ms~50 ms	时延界(t)	—	可	可变100~200	高	4
报警和操作命令事件	偶发性	2s	时延界(t)	—	可	可变100~1 500	中	3
网络控制	周期性	50 ms~1 s	吞吐量	是	可	可变50~500	高	7
配置诊断	偶发性	—	吞吐量	—	可	可变500~1 500	中	2
视频	周期性	帧速率	吞吐量	—	可	可变1 000~1 500	低	1
音频/语音	周期性	采样速率	吞吐量	—	可	可变1 000~1 500	低	1
尽力而为	偶发性	—	无	—	可	可变30~1 500	低	0

对比项	5G-U	5G	Wi-Fi
频谱	授权频段+免授权频段	授权频段	免授权频段
流量可靠性	较高可靠性	高可靠性	可靠性和可用性无法保证
端到端时延	低时延（授权频段）	超低时延	超低时延但无法保证
移动性	移动性管理强	无中断移动性	服务中断难以预测
覆盖范围	广域和本地覆盖	广域和本地覆盖	本地覆盖
安全性	较高	高	低
成本	CAPEX、OPEX较低	CAPEX高	OPEX高
业务连续性	可与5G无缝切换	—	无法与5G交互
应用场景	关键性业务（授权频段）+非关键性业务（免授权频段）	关键性机器类通信等	企业非关键性用例

面向工业互联网的5G-U与时间敏感网络融合架构与技术

Integrating 5G-U with time-sensitive networking for industrial Internet: architectures and technologies

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