铁路5G-R隧道覆盖方案研究  

Research on 5G-R Coverage Scheme for Railway Tunnels

作　　者：葛伟涛 冯敬然 周敏 杨琪 李珉璇 GE Weitao;FENG Jingran;ZHOU Min;YANG Qi;LI Minxuan(Electrification&Telegraphy Engineering Design Research Department,China Railway Design Corporation,Tianjin 300308,China)

机构地区：[1]中国铁路设计集团有限公司电化电信工程设计研究院,天津300308

出　　处：《中国铁路》2022年第9期83-87,共5页China Railway

基　　金：中国国家铁路集团有限公司科技研究开发计划项目(P2021G012)。

摘　　要：铁路隧道口通常地形较复杂,隧道内空间较封闭,隧道口或隧道群之间无线场强起伏较大,因此隧道无线覆盖方案一直是铁路通信行业研究的重点和难点。通过分析5G-R系统隧道内上下行链路预算,针对短隧道、中长隧道、长大隧道和隧道群等场景,介绍5G-R隧道内组网方案,针对新建铁路和既有铁路隧道内建设5G-R可能遇到的问题给出工程建议,可为5G-R工程建设提供参考。Generally,the terrain at the railway tunnel portal is complex,the space in the tunnel is relatively closed,and the wireless field strength between the tunnel portals or tunnel groups fluctuates greatly.Therefore,the wireless coverage scheme for tunnel has always been the highlight and challenge of railway communication research.By analyzing the up and down link budgets in tunnels with the 5G-R system,this paper introduces the networking scheme in 5G-R tunnels under scenarios such as short tunnels,medium tunnels,long tunnels,and tunnel groups,and puts forward engineering suggestions coping with possible problems during 5G-R deployment in new and existing railway tunnels,which can provide reference for the engineering construction of5G-R system in the future.

关 键 词：5G-R 隧道覆盖 分布式基站 漏缆 

分 类 号：U285[交通运输工程—交通信息工程及控制]