LTE-U在轨道交通通信与无线信号业务统一承载中的应用

The Application of LTE-U in the Wireless Service Uniform Carrier of Rail Transit Communication Signals

在轨道交通行业,以无线网络为支撑的车地业务主要有列车控制信息(CBTC)、PIS/CCTV乘客服务、视频监控车地无线数据业务以及无线集群调度等。常规情况下,需分别建设四张无线网络以满足这些业务的承载需求。LTE-U(非授权载波LTE网络)可以满足无线网络统一承载的要求,在CBTC、PIS、CCTV以及无线集群业务统一承载方案的设计及应用上发挥重要作用。

In the rail transmit industry,the main services that need to be carried by wireless networks include train control information（CBTC）,PIS/CCTV passenger service,wireless data service of video surveillance and the Wireless Cluster dispatching system.Four wireless networks are routinely built to meet the carrying demand of these services.The excellent performance of the LTE-U（unauthorized carrier LTE network） meets the requirements of the unified load of the wireless network.This paper mainly expounds the design and application of LTE-U to CBTC,PIS,CCTV and wireless cluster services.