海南东环高铁GSM网络覆盖要点分析

Experience in design and construction of the Hainan east ring high-speed rail GSM private network

随着高速铁路的大量建设,高铁沿线现有无线网络覆盖面临诸多难题。本文以海南东环高铁GSM网络覆盖为案例,针对高铁网络覆盖提出的新要求,提出了专网覆盖组网方案、无线基站建设原则、不同场景下传播模型及切换区设置等,解决列车高速运行条件下接通率低、掉话严重的现象。同时,阐述了专网小区的载频配置原则。本文提及的关键技术和指导原则均在海南东环高铁专网覆盖建设中得到应用,效果明显。

With the construction of a large amount of high-speed railway, wireless network coverage along the high- speed railway is faced with many difficult problems. Considering the new requirements of the high speed rail network coverage, this article takes Hainan east ring high-speed rail GSM network coverage for the case, aims to overcome low percentage of successful connections and high drop-call problems in the train high-speed operation conditions, and puts forward Hainan east ring high-speed rail GSM private network coverage scheme, including the comparison of public network coverage and private network coverage, wireless base station construction principle, and the determination of the propagation model in different scenes. At the same time, the article puts forward the carrier frequency collocation principle of various private network areas. All the key technologies and guiding principles mentioned in this article have been applied in Hainan east ring high-speed private network coverage construction, and obvious results have been achieved.