高铁隧道5G公网覆盖方案研究  

Research on Coverage Scheme of 5G Public Network in High-speed Railway Tunnel

作　　者：沈华 Shen Hua

机构地区：[1]中铁电气化局集团有限公司,北京100036

出　　处：《铁道通信信号》2021年第9期42-47,共6页Railway Signalling & Communication

基　　金：中国铁道科学研究院科研计划重点课题.列控车载动态监测系统研究.1951TH6804。

摘　　要：对高铁隧道公网信号覆盖面临的小区频繁切换、多普勒频偏、穿透损耗大等难题进行深入分析。对于隧道内和隧道口2个典型场景,从基站选型、设备选型等方面分别进行5G公网信号覆盖方案研究。同时提出公网专网共建共享理念,进一步促进高铁智能化、信息化发展。An in-depth analysis is made on the difficulties of signal coverage of public network in high-speed railway tunnel, such as frequent switching of cell, Doppler frequency offset and large penetration loss, etc. For the two typical scenarios of inside the tunnel and at the ends of the tunnel,signal coverage scheme of 5 G public network is studied respectively from the aspects of selection of base station and selection of equipment. Besides, the concept of equipment sharing of public network and private network is put forward to further promote the development of intelligent and information-based high-speed railway.

关 键 词：高铁 隧道 第五代移动通信技术(5G) 分布式基站 公网覆盖 

分 类 号：U285.2[交通运输工程—交通信息工程及控制]