试论高速铁路环境下的GSM-R无线网络覆盖

Research on the Radio Coverage of GSM-R in High-speed Railway Environment

无线接入部分是GSM-R系统中的薄弱环节,列车的高速运动导致的频繁越区切换,会对列控通信业务的安全产生严重影响,必须加强对GSM-R系统的无线网络进行合理的规划。本文首先从单基站覆盖和冗余覆盖两个方面论述了GSM-R网络的覆盖方式,随后论述了不同方案的频率分配;最后,论述了高速环境下的小区规划。

Wireless access part of GSM-R system is a weak link,the high-speed movement of trains will lead to the frequent handover failure,which has a serious impact on the communication,so rational radio planning is needed.In this paper,the single base station coverage and redundancy coverage is firstly introduced concerning the coverage solutions of GSM-R network,then the frequency distribution of different Solutions is illustrated,finally,the zone planning in the high-speed environment is introduced.