LTE在悬挂式单轨车地无线通信系统中的应用

The Application of LTE in the Wireless Communication System of Suspended Monorail Vehicle

研究目的:随着我国城市化进程的加快,地铁、轻轨等交通方式成为大城市解决交通拥堵和空气污染等问题的重要手段,但一些二、三线城市更加需要经济适用、中低运量的轨道交通方式。因此,本文对悬挂式单轨交通综合车地无线通信系统的技术体制、频率需求、系统功能以及系统架构进行深入研究和探讨。研究结论:(1) TD-LTE作为悬挂式单轨车地综合无线通信系统方案无线通信平台,用于综合承载信号列控、调度集群通信、列车运行状态信息、PIS、CCTV等业务的无线传输,具有简化系统、节省系统维护费用等优点;(2)提出的一种基于LTE的悬挂式单轨交通车地综合无线通信系统设计方案,在保障CBTC业务高可靠传输的同时,通过单个LTE系统实现悬挂式单轨交通的CBTC、调度语音、车载PIS和CCTV等业务的综合承载;(3)本研究成果对城市轨道交通综合无线通信系统的长期技术演进有一定的指导意义。

Research purposes:With the acceleration of urbanization in China,subway,light rail and other modes of transportation have become important means to solve the problems of traffic congestion and air pollution in big cities.Some second and third-tier cities need more economical,medium and low-volume rail transport modes.This paper studies the technical system,frequency requirements,system function and system architecture of the suspended monorail transportation integrated vehicle-land wireless communication system.Research conclusions:(1) As a wireless communication platform of the suspended monorail vehicle-land integrated wireless communication system scheme,TD-LTE is used for the wireless transmission of the integrated carrying signal train control,dispatching cluster communication,train operation status information,PIS,CCTV and other services,and has the advantages of simplifying the system and saving system maintenance costs.(2) A design scheme of integrated wireless communication system based on LTE is proposed.While ensuring high-reliability transmission of CBTC services,CBTC,dispatched voice,on-board PIS and CCTV services for suspended monorail traffic can be integrated with a single LTE system.(3) The research results have the guiding significance for the long-term technical evolution of urban rail transit integrated wireless communication system.