铁路5G-R系统覆盖方案研究  

Research on Railway 5G-R System Coverage Scheme

作　　者：任超 REN Chao(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》2023年第5期8-12,共5页China Railway

基　　金：中国铁路设计集团有限公司科技开发项目(2022A02512012)。

摘　　要：基于5G技术的新一代铁路专用移动通信(5G-R)系统已成为铁路智能联接的首选。铁路专用移动通信系统需要解决高可靠性和高速移动性的问题,以及轨道交通枢纽群与场景独特性带来的挑战,因此5G-R系统覆盖方案需结合铁路自身特点开展设计。重点对5G-R系统链路预算、无线组网方案进行研究,探讨分析单BBU和双BBU星型组网、环型组网方案的优缺点及适用场景,并提出在5G-R系统建设初期,GSM-R与5G-R系统共存时的覆盖方案。The new generation railway private mobile communication(5G-R)system based on 5G has become the first choice for railway intelligent connection.The railway private mobile communication system needs to solve the problems of high reliability and high-speed mobility,as well as the challenges brought by the uniqueness of rail transit hub groups and scenarios.Therefore,the 5G-R system coverage scheme needs to be designed in combination with the characteristics of the railway itself.This paper focuses on the research on 5GR system link budget and wireless networking scheme,discusses and analyzes the advantages,disadvantages and applicable scenarios of single BBU,dual BBU star networking and ring networking schemes,and puts forward the coverage scheme when GSM-R and 5G-R systems coexist in the early stage of 5G-R system construction.

关 键 词：5G-R 链路预算 组网方案 分布式基站 

分 类 号：U285[交通运输工程—交通信息工程及控制]