LTE技术在城市轨道交通车地通信中的应用

Application of LTE Technology in Train-Ground Communication for Urban Rail Transit

分析无线局域网作为城市轨道交通车地传输系统存在的一些重要问题;介绍LTE的技术特点,提出将LTE应用到城市轨道交通车地无线通信系统是很有必要的;针对城市轨道交通车地无线通信的综合承载需求,设计基于LTE的城市轨道交通车地通信传输系统,并给出相应的LTE网络架构和测试方案,为城市轨道交通进行车地信息综合承载提供较为全面的视角和参考。

This paper analyzes some important issues of using WLAN system as urban rail transit train-ground communication system, introduces the technical features of LTE technology, and puts forward the necessary of applying LTE in urban rail transit wireless communication system. Considering the integrated service capacity requirements in urban rail transit wireless communication, the paper presents the design of an urban rail transit wireless communication system based on LTE technology, as well as the LTE network architecture and test scheme accordingly. And it provides an overall perspective and reference for integrated train-ground communication in urban rail transit.