市域铁路多网融合解决方案

市域铁路各无线传输系统独立建设,分别运营维护,增加了前期建设投资和后期运维成本。通过分析市域铁路各业务承载需求,比选当前主流无线通信技术,提出基于TD-LTE技术的综合承载信号CBTC(基于通信的列车自动控制)系统、PIS(乘客信息系统)、无线语音调度系统、列车状态监测系统和AFC(自动售检票)系统手持终端在线传输等业务的多网融合解决方案,并介绍在工程实际中TD-LTE频率资源的选择和网络架构的搭建,为后续市域铁路车地无线通信系统的建设提供参考和借鉴。

The solution of Multi-network Integration in Suburban Rail Transit

As a new type of rail transport,suburban rail transit has gradually become the mainstream mode of construction in the second-tier and the third-tier cities.Wireless communication system in suburban rail transit is constructed independently at present,which leads to the increase of early investment and follow-up maintenance costs.Through analyzing the demand of each kind of cab-ground traffic load,as well as advantages and disadvantages of various mainstream wireless communication technologies,this paper proposed a solution of multi-network integration based on TD-LTE technology,including CBTC signal system,PIS system,wireless voice dispatching system,train status monitoring system and AFC handheld terminal online transmission.Moreover,how to select frequency resources and how to build network architecture are described.