高速列车宽带无线上网方案比较及电气安装要求

Comparison of the Broadband Internet Access Solutions in China Railway High-speed Train and Their Requirements on Electric Fitting

针对高速列车无法宽带无线上网的问题,分析比较了3种不同的解决方案和各自对电气安装的要求。车外语音加车内无线局域网,直放站配合无线局域网和微蜂窝RRU拉远这3种方案都能提供高速列车宽带无线上网。但是它们技术方案不同,导致成本、性能、布线难度不一样。可以根据工程要求选择不同的改造方案。

This paper introduces three different solutions to meet the broadband internet access requirement in China Railway Highspeed （CRH） train. They are wireless LAN inside train, wireless LAN inside train plus mobile radio repeater, and micro cellular with remote radio unit. All three solutions can support broadband internet access in CRH train with different performance, user experience and cost, etc. The differences are compared in this paper. Engineers can choose the best fitting solution based on the installation project requirement.