城市轨道交通线路5G网络覆盖方案研究  

Research on 5G network coverage plan for urban rail transit lines

作　　者：李佳宁 Li Jianing

机构地区：[1]中国铁道科学研究院集团有限公司电子计算技术研究所,北京100081

出　　处：《现代城市轨道交通》2021年第9期8-12,共5页Modern Urban Transit

摘　　要：移动终端接入量以及通信数据的迅猛增加使得城市轨道交通无线网络承受着高话务量、高容量及高传输速度的压力。将5G网络引入既有城市轨道交通线路是提升城市轨道交通无线网络覆盖水平、解决上述问题的最佳方案。针对城市轨道交通站厅站台及隧道区间环境复杂的技术难点,文章在分析其环境特点的基础上,综合考虑技术可行性与建设经济性,提出在站厅站台通过新设5G单模分布式皮基站实现5G独立组网、在隧道区间采用13/8和5/4漏缆实现5G网络全面覆盖的解决方案,以期为实现既有城市轨道交通线路的5G网络覆盖提供参考和借鉴。The rapid increase of mobile terminal access and communication data has led to pressure on urban rail transit wireless networks due to high traffic load,high capacity and transmission speed requirements.Introducing the fifth generation mobile communication system(5G)into existing urban rail transit lines is the best solution to improve the coverage performance of urban rail transit wireless networks.Focusing on the technical difficulties of the complex environments in urban rail transit station halls,platforms and tunnels,and based an analysis of these environmental characteristics while considering the technical and economic feasibility,this paper proposes a plan for achieving independent 5G networking in station halls and platforms by installing 5G single-mode distributed picocells,and realizing 5G coverage in tunnels by using 13/8”and 5/4”leaky coaxial cable.This may serve as a reference for 5G network coverage in existing urban rail transit lines.

关 键 词：城市轨道交通 5G网络覆盖 站厅站台 隧道区间 协同组网 漏缆 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]