高铁隧道内GSM-R网络天线覆盖方式研究

Study of Coverage Mode of GSM-R Network Antenna Within Tunnel in High-speed Railway

通过对高铁短隧道内试验案例和检测数据分析,验证了短隧道内GSM-R信号覆盖可以不采用传统的直放站加漏缆的方式,而是在隧道口设置天线进行无线覆盖,可为GSM-R网络设计单位、铁路养护维修和网络优化部门提供参考。

Through analyzing the test case and QoS data within short tunnel in high-speed railway, it is validated that the coverage of GSM-R signal within short tunnel can be achieve by adopting the setup of antenna at the entrance of the tunnel instead of the traditional addition of leaky cable to tunnel repeater, providing reference for the units involving in network design and railway maintenance and network optimization.