时间敏感网络的关键协议及应用场景综述  

A survey of key protocol and application scenario of time-sensitive network

作　　者：丛培壮 田野[1] 龚向阳[1] 阙喜戎[1] 王文东[1] CONG Peizhuang;TIAN Ye;GONG Xiangyang;QUE Xirong;WANG Wendong(State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]北京邮电大学网络与交换技术国家重点实验室

出　　处：《电信科学》2019年第10期31-42,共12页Telecommunications Science

摘　　要：随着信息技术的发展,以物与物作为通信主体的场景需求不断增加,如工厂自动化控制、自动驾驶等,这类通信对数据传输时延的要求远远超出了传统以太网的可控范围,时间敏感网络应运而生。时间敏感网络是以标准以太网为网络基础,提供确定性信息传输的标准化技术,通过时间感知的调度机制最小化抖动,并为时间敏感应用提供可靠的数据传输保障。通过对时间敏感网络相关国际标准的说明,介绍了其核心特性及机制,并在车载网络、工业互联网、航空电子网络和移动前传网络等应用场景进行了分析和研究。With the development of information technology,the demand for scenarios with objects as the main body of communication is increasing,such as factory automation control,automatic driving,etc.The time delay requirements of such communication for data transmission far exceed the controllable range of traditional ethernet,then time-sensitive network have emerged.Time-sensitive network is a standardized technology that provides deterministic information transmission based on standard ethernet.It minimizes jitter through time-aware scheduling mechanism and provides reliable guarantee of data transmission for time-sensitive applications.The core characteristics and mechanism of time-sensitive network were introduced through the description of IEEE standards and its application scenarios were analyzed in vehicle network,industrial internet,aircraft data network and mobile fronthaul network.

关 键 词：时间敏感网络 低时延网络 确定性传输 应用场景 

分 类 号：TN915.03[电子电信—通信与信息系统]