对高速铁路移动通信网络的研究

Study on Mobile Communication Network of High Speed Railway

从多普勒频移、天线挂高和基站距列车的距离、隧道的影响、信号屏蔽、施工运行维护等几个方面分析和研究了影响高铁移动网络覆盖的各种因素,介绍了高速铁路移动通信中公网、专网、车载三种组网方式,分析了各自的优缺点和适用情况,并对如何进行现网优化方法提出了建议.

In this paper,various factors affecting the mobile network coverage of high speed railway were analyzed and studied from several aspects such as Doppler shift,distance between antenna and base station,influence of tunnel,signal shielding,and construction operation and maintenance. Three networking modes of high speed railway such as public network,private network and vehicular network were introduced,and their respective advantages and disadvantages and the applicable conditions were analyzed. The suggestions on how to optimize the current network were proposed eventually.