杭台高铁隧道公网覆盖实施方案  

Implementation Plan of Public Network Coverage in Tunnels in Hangzhou-Taizhou High-speed Railway

作　　者：葛伟涛 孙庆东 Ge Weitao;Sun Qingdong

机构地区：[1]中国铁路设计集团有限公司,天津300308

出　　处：《铁道通信信号》2022年第6期7-11,共5页Railway Signalling & Communication

基　　金：中国铁路设计集团有限公司科技开发项目(2022A02512011)。

摘　　要：由于高铁列车车体对无线信号穿透损耗大,列车移动速度快,小区切换频繁,多普勒频移严重,使得高速铁路公网覆盖难度较大。以杭台高铁为例,研究隧道公网(含5G)覆盖实施方案,包括需求分析、隧道链路预算、基站组网方案、光缆分配方案和基站供电方案等,可用于指导后续高铁隧道内公网工程建设。The coverage of public network in high-speed railway is quite difficult due to the great penetration loss of train body to wireless signal and serious Doppler frequency shift caused by frequent cell handovers when trains fast moving between cells.In the case of Hangzhou-Taizhou high-speed railway,the implementation plan of public network(including 5G mobile communication)coverage in tunnels is presented,including requirement analysis,budget of the link in tunnels,networking schemes of base station,optical fiber cable distribution scheme,base station power supply and so on.It can be used to guide the subsequent 5G construction in high-speed railway tunnels.

关 键 词：高铁 第五代移动通信 隧道 公网覆盖 漏缆 实施方案 

分 类 号：U285.2[交通运输工程—交通信息工程及控制]