[关键词]
[摘要]
总结专用于城市轨道交通车地通信的 WLAN(wireless local area network，无线局域网)和 LTE-M(long term evolution for metro，城市轨道交通长期演进)主要承载的业务，给出 LTE-M 综合承载列车运行控制、视频监控、 集群调度等多业务网络结构。针对城市轨道交通业务需求和发展，探讨专网 5G 技术的构建及设计网络方案，论 述 5G 专网应用对城轨发展的促进作用，并分析该过程存在的主要问题，提出相关的解决方法和手段。
[Key word]
[Abstract]
In this study, I examine the main services provided by wireless local area networks and long term evolution for machines (LTE-M) dedicated to urban rail systems. I propose that the LTE-M system integrates the network structures of train operation and control, image monitoring, and trunk dispatching services. The deployment of 5G in train-to-ground wireless communications systems is discussed based on the needs of services in urban rail and the network plan is designed. In addition, we analyze the benefits to urban rail of the application of 5G. Finally, the main problems in the process and relevant solutions are proposed.
[中图分类号]
U231.7
[基金项目]
北京市自然科学基金资助项目(L201002)
