长期演进(LTE)技术在上海城市轨道交通中的应用

Application of LTE Technology in Shanghai Urban Rail Transit

分析了LTE(长期演进)技术应用于上海城市轨道交通的必要性。结合上海城市轨道交通的运营实际及规划情况,在CBTC(基于通信的列车控制)业务、集群调度业务、列车紧急文本下发业务、车载视频监视业务等4个方面提出了LTE的应用需求,并给出了上海城市轨道交通LTE-M(城市轨道交通车地综合通信系统)频段的分配表。在此基础上,提出LTE技术在上海城市轨道交通中的组网方式和系统构成。最后,针对LTE技术在上海城市轨道交通应用中的常见问题,提出相关的对策和措施。

The necessity of LTE(long-term evolution)technology application in Shanghai urban rail transit is analyzed.Considering the actual operation and planning of Shanghai urban rail transit,the application requirements of LTE technology are proposed from four aspects:CBTC(communication based train control)service,trunked dispatch service,train emergency text distribution service,on-board CCTV(closed circuit television)service.The allocation table of LTE-M frequency band of Shanghai urban rail transit is worked out as well.On this basis,the networking mode and system composition of LTE technology in Shanghai urban rail transit are proposed.Finally,in view of the common application problems of LTE technology in Shanghai urban rail transit,corresponding strategies and counter measures are put forward.