多技术融合承载铁路5G业务应用  

Multi-technology Convergence Carries Railway 5G Business Applications

作　　者：杨锐[1] 郭桂芳[1] 赵武元[1] YANG Rui;GUO Guifang;ZHAO Wuyuan(Beijing Communication Technology Center,Beijing 100038,China)

机构地区：[1]北京铁路通信技术中心,北京100038

出　　处：《中国铁路》2022年第9期47-53,共7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(2020F010)。

摘　　要：铁路无线通信业务应用场景复杂,既有GSM-R、无线列调等窄带通信已不能满足业务应用发展的需求。铁路5G-R的承载能力大大提高,主要面向调度通信、列车控制、列车运行安全监测等广域范围的车地通信业务。而在铁路作业人员密集的大型客运车站、货场、维修基地等场所,受限于5G专网的频谱带宽,无法承载铁路所有业务应用,需考虑采用多种无线技术进行补充。对铁路业务应用场景进行说明,分析5G毫米波(5G mmWave)、第六代无线局域网技术(Wi-Fi6)等无线通信技术特点,探讨多技术融合承载铁路5G业务应用的方案。The application scenarios of railway radio communication are complex,while the existing narrowband communication such as GSM-R and radio train dispatching system fails to meet the requirements of business application development.The carrying capacity of railway 5G-R has been greatly improved,mainly for wide-area train-ground communication businesses such as dispatching communication,train control and train operation safety monitoring.However,for large passenger stations,freight yards,maintenance bases and other places with densely populated railway operators,it is unable to carry overall railway business applications limited by the spectrum bandwidth of 5G private networks,so it is necessary to consider various radio technologies for supplementation.This paper also elaborates the railway business application scenarios,analyzes the characteristics of radio communication technologies such as 5G mmWave and Wi-Fi6,and discusses the schemes of multi-technology convergence carrying railway 5G business applications.

关 键 词：5G-R 业务应用 技术融合 5G毫米波 无线局域网 

分 类 号：U285[交通运输工程—交通信息工程及控制]