基于TSN的5G前传网承载分布式电源业务时延分析  

Delay Analysis of Distributed Power Services Carried by TSN-based 5G Fronthaul Network

作　　者：郭云飞 吴鹏 杨锦林 王玮 GUO Yunfei;WU Peng;YANG Jinlin;WANG Wei(State Grid Smart Grid Research Institute Co.,Ltd.,Nanjing 210000,Jiangsu Province,China;Beijing Eastsoft Technology Co.,Ltd.,Shijingshan District,Beijing 100144,China)

机构地区：[1]中国电力科学研究院有限公司,江苏省南京市210000 [2]北京东土科技股份有限公司,北京市石景山区100144

出　　处：《电力信息与通信技术》2024年第12期26-32,共7页Electric Power Information and Communication Technology

基　　金：国家电网有限公司双创孵化培育基金定向委托类项目“电力时间敏感网络交换装置”(5700-202310444A-0-0-02)。

摘　　要：5G与时间敏感网络(time-sensitive networking,TSN)的融合部署因能够保证业务传输的确定性低时延,高度契合时间敏感业务的通信需求而备受关注。为分析基于TSN的5G前传网承载分布式电源业务的可行性,文章提出一种基于网络演算的最大时延分析方法。首先,结合分布式电源业务的服务质量及传输特性,建立面向分布式电源业务的到达曲线;其次,基于TSN流调度协议IEEE 802.1Qcr的交换机转发原理,建立关键分布式电源业务流的服务曲线;最后,利用网络演算理论分析了5G前传网络承载分布式电源业务的最大时延。实验结果表明,基于TSN的5G前传网可为分布式电源业务提供确定性低时延传输服务,为5G通信网承载分布式电源业务提供了理论支撑。The integration of 5G and time-sensitive networking(TSN)has gained significant attention due to its ability to ensure deterministic low-latency transmission,meeting the communication needs of time-sensitive services.To evaluate the feasibility of using a TSN-based 5G fronthaul network to carry distributed power services,this paper proposes a maximum delay analysis method based on network calculus.Firstly,an arrival curve tailored to the quality of service and transmission characteristics of distributed power services was established.Secondly,a service curve for critical distributed power service flows was created based on the forwarding principles of the TSN flow scheduling protocol IEEE 802.1Qcr.Finally,the maximum delay of distributed power services carried by the 5G fronthaul network was analyzed using network calculus theory.Experimental results show that the TSN-based 5G fronthaul network can provide deterministic low-latency transmission services for distributed power services,offering theoretical support for the 5G communication network to carry distributed power services.

关 键 词：分布式电源业务 网络演算 时间敏感网络 时延上界 

分 类 号：TN929.5[电子电信—通信与信息系统]