基于LTE的城市轨道交通车地通信综合承载系统

发布时间：2018-04-15 15:26

本文选题：城市轨道交通 + 车地通信　；参考：《都市快轨交通》2016年01期

【摘要】：为保证城市轨道交通运营安全,迫切需要整合车地无线通信生产业务的承载需求,建立基于城市轨道交通专用无线频段的车地通信系统。利用我国自主知识产权的TD-LTE(time division long term evolution,分时长期演进)技术,设计出基于LTE(long term evolution,长期演进)的城市轨道交通车地通信综合承载系统(LTE-M),在北京的国家铁道实验中心环形道进行全球第1个LTE-M系统的试验段测试。整个测试过程完全复制列车的实际运行场景,包括真实的车辆、设备以及高架、隧道等实际通信场景。大量的测试结果表明,所设计的LTE-M系统抗干扰能力强、综合承载能力强、频谱利用率高,能够满足轨道交通业务需求。LTEM系统用于承载轨道交通综合业务,在保障CBTC(基于通信的列车控制)业务高可靠传输的同时,能够为CCTV(车辆视频监控)和PIS(乘客信息系统)等业务提供有效的传输通道。
[Abstract]:In order to ensure the operation safety of urban rail transit, it is urgent to integrate the bearing demand of the wireless communication business of vehicle and ground, and to establish a vehicle-ground communication system based on the special wireless frequency band of urban rail transit.Using the TD-LTE(time division long term evolution, time-sharing and long-term evolution technology of independent intellectual property rights in China,Based on LTE(long term evolution (long term evolution), an integrated carrier system for urban rail transit vehicle-ground communication is designed. The test section of the first global LTE-M system is tested in the ring road of the National Railway Experimental Center in Beijing.The whole testing process completely duplicates the actual running scene of the train, including the real vehicle, equipment and the actual communication scene such as elevated, tunnel and so on.A large number of test results show that the designed LTE-M system has strong anti-interference ability, strong comprehensive carrying capacity and high spectral efficiency, and can meet the requirements of rail transit business.CBTC-based train control (CBTC-based train control) service can provide high reliable transmission, and can provide an effective transmission channel for CCTV (vehicle Video Surveillance) and PIS (passenger Information system) services.
【作者单位】：北京市轨道交通建设管理有限公司;北京交通大学轨道交通控制与安全国家重点实验室;北京交通大学轨道交通运行控制系统国家工程研究中心;
【基金】：轨道交通控制与安全国家重点实验室自主研究课题(RCS2015ZT00) 北京市科委项目
【分类号】：U285

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