地铁场景4G网络优化方法

Optimization methods and strategies of 4G subway network

基于地铁场景快速移动、上行资源受限等特点,需主要从提升容量、参数策略和Vo LTE引入后地铁覆盖能力提升等方面提出解决方案。容量上,主要从频点扩容和参数优化两个方面研究了解决措施;参数策略上,主要考虑切换、2G/3G/4G互操作和出入口移动性方面进行研究;地铁覆盖能力可以通过更换支撑4G频段的POI和功率调配两方面开展。

Concerning on the characteristics of subway scene, fast moving and limited uplink resources, it is necessary to put forward the solutions mainly from the aspects of capacity enhancement, parameter strategy and coverage improvement, especially after Vo LTE. Capacity was enhanced mainly by means of the frequency expansion and the parameter optimization, parameters strategy was adjusted mainly from the 2G/3G/4G interoperability and mobility of the entrance/exit and coverage was improved by switching POI of the 4G-band or power reassignment.