空口监测在CTCS-3级列控系统无线超时分析中的应用研究

Study on Using Um Interface Monitoring for Analyzing Wireless Communication Timeout of CTCS-3 Level Train Control System

CTCS-3级列控系统通过GSM-R无线网络实现车地信息实时交互,车载MT模块与基站BTS间的通信是整个列控系统中的一个薄弱环节。介绍了空口监测设备的组成,在前期GSM-R网络Abis接口、A接口、PRI接口监测数据分析的基础上,结合现场案例重点阐述了如何利用空口监测数据分析具体的无线超时问题,对于减少无线超时问题发生的次数,提高CTCS-3级列控系统的运用质量具有一定的参考意义。

CTCS-3 train control system achieves real-time train-ground data interaction via GSMR network,in which the communication between the on-board MT module and the BTS is a weak point in the train control system.This paper describes the composition of the Uminterface monitoring equipment.Based on an analysis of the existing GSM-R network Abis,A,PRI interface monitoring data,how to analyze wireless communication timeout by collecting Uminterface monitoring data in a field case is explained,which has important significance and practical value for reducing the occurrence of wireless communication timeout and improving the application quality of the CTCS-3level train control system.