高铁隧道5G覆盖应用渐变辐射型漏缆的研究  

Research on the Application of Gradual Radiation Leaky Cable in 5G Coverage of High-speed Railway Tunnel

作　　者：许灏 王渤 俞彬 李益锋 许彬 陶昕 XU Hao;WANG Bo;YU Bin;LI Yifeng;XU Bin;TAO Xin(Huaxin Consulting Design&Research Institute Co.,Ltd.,Hangzhou Zhejiang 310052,China)

机构地区：[1]华信咨询设计研究院有限公司,浙江杭州310026

出　　处：《通信技术》2022年第10期1368-1375,共8页Communications Technology

摘　　要：高铁是移动通信高端用户云集的场所,是5G网络重点保障场景之一。5G网络保障的高铁区域包括高铁站、隧道及沿线区域。目前隧道内无线信号弱覆盖的问题仍未得到妥善解决。通过分析高铁隧道的结构特征,常规漏缆的技术缺陷,以及5G信号在高铁隧道内的传播特性,提出了一种具有特殊槽孔、大幅度减少传输损耗的新型漏缆。最后采用测算对比的方法进行研究,并通过软件仿真和实验加以验证,结果表明该研究成果可为后续类似场景的建设提供借鉴。High-speed railway is a place where high-end users of mobile communication gather,and it is one of the key support scenarios of 5G network.The support areas include high-speed railway stations,tunnels and areas along the line.At present,the phenomenon of weak wireless signal coverage in tunnels has still not been properly solved.By analyzing the structural features of the high-speed railway tunnels,the technical defects of the conventional leaky cables,and the propagation features of 5G signals in the high-speed railway tunnels,a new leaky cable with special slots and greatly reduced transmission losses is proposed.Finally,the method of calculation and comparison is used for research,and it is verified by software simulation and experiments,and the results can provide reference for the construction of similar scenarios in the future.

关 键 词：高铁隧道 5G网络 漏泄同轴电缆 渐变辐射型 场强 

分 类 号：TN929.5[电子电信—通信与信息系统]