基于“基站+村通宝”的高速铁路专网覆盖解决方案研究

Research On the Solution of the High-Speed Railway Network Coverage Based on “Base Station + Village-to-Village Coverage”

由于CRH动车组车体密封性好、车速快、损耗高,车厢内的通信质量明显下降,现有GSM网络无法为高速列车提供服务。通过对列车的穿透损耗进行测试与分析,引入标准传播模型以及对地貌因子的校正、小区重选及切换,建立行驶列车中乘客的话务模型和数据业务模型,提出了基于"基站+村通宝"的高速铁路覆盖解决方案,以解决和优化列车提速后通信质量差、掉话、接通率低等问题。

Because of the good-sealing performance,fast speed,and high consumption of CRH trains,the communication quality has an obvious drop inside the carriage,and the existing GSM network could not provide services on the high-speed trains. Through testing and analyzing the penetration losses of the trains,introducing the standard propagation model,correcting the geomorphologic factors,re-selecting and switching the community and establishing voice and data traffic model of the passengers on the running trains,a solution of high-speed railway coverage based on＂base station ＋ village-to-village coverage＂ is brought up to solute and optimize the problems of low communication quality,call interrupt,low call-through rate and so on after speeding the railway.