LTE-M车地无线通信单双漏缆敷设研究  

Research on Laying of Single and Double Leaky Cable of LTE-M Train-wayside Wireless Communication

作　　者：张焕增 Zhang Huanzeng(Jinan Rail Trasit Group Co.,Ltd.,Jinan 250002,China)

机构地区：[1]济南轨道交通集团有限公司,济南250002

出　　处：《铁路通信信号工程技术》2020年第7期46-50,共5页Railway Signalling & Communication Engineering

摘　　要：漏缆作为城市轨道交通TD-LTE车地无线通信主流传输介质,具有传输信号稳定、覆盖均匀、敷设距离远等优点,但其价格较贵,因此敷设单漏缆还是双漏缆需要深入研究,通过对多个应用场景可靠性方面进行深入比较分析,确定了不同车地无线方案所采用的漏缆敷设方式,综合考虑价格及可靠性因素,给出综合承载场景下应采用漏缆敷设方式,建议单独承载信号系统情况下地下段宜采用单漏缆,高架段宜采用双漏缆敷设方式.As the main transmission medium of TD-LTE train-wayside wireless communication of urban rail transit,leaky cable has the advantages of stable transmission signal,uniform coverage,long laying distance,etc.,but its price is relatively expensive.Therefore,laying single leaky cable or double leaky cable needs to be studied in depth.In this paper,through in-depth comparative analysis on the reliability of multiple application scenarios,the laying mode of leaky cable adopted by different trainwayside wireless schemes is determined.Considering the factors of price and reliability,it is suggested to adopt the laying mode of leaky cable in the comprehensive bearing scenario,single leaky cable in the underground section and double leaky cable in the elevated section in the case of single bearing signaling system.

关 键 词：CBTC 车地通信 LTE 漏缆 

分 类 号：U231.7[交通运输工程—道路与铁道工程]