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目前我国高速铁路里程已上万公里,随着无线网络覆盖的不断完善与品质的提升,用户对网络覆盖、质量提出了越来越高的要求;各大通信运营商也在积极进行高速铁路信号覆盖项目的建设。但是,高速铁路有自身的GSM-R无线系统,它承载着铁路无线调度系统等信息传输职能,跟铁路安全运输息息相关,这就给高速铁路公网信号覆盖提出更高要求,特别是隧道内敷设公共移动通信系统漏泄同轴电缆可能对铁路GSM-R系统造成影响作出如下分析和说明。
At present, the mileage of high-speed railways in our country has reached tens of thousands of kilometers. With the continuous improvement of wireless network coverage and the improvement of quality, users have set higher and higher requirements on network coverage and quality. Major communications operators are also actively carrying out high-speed railway signals Cover project construction. However, the high-speed railway has its own GSM-R wireless system, which carries information transmission functions such as railway wireless dispatching system and is closely related to the safe transport of railways. Therefore, high-speed railway public network signal coverage is set higher requirements, especially in the tunnel laying Public mobile communication system leakage coaxial cable may affect the railway GSM-R system to make the following analysis and description.