摘要
针对高铁LTE网络覆盖进行分析研究。首先论述了高铁LTE网络覆盖的特殊性,然后从列车车厢的穿透损耗、多普勒频移特点以及高铁轨道线状延伸特性等几个方面进行分析,得出高铁站点规划与布局的总体原则,并对一些特殊场景的站点规划及高铁LTE网络的主要规划参数设计进行了论述,同时又对高铁LTE专网的切换策略进行了分析研究,最后通过高铁LTE网络建设后的实际测试效果验证了整个方案的合理有效性。
This paper focuses on the analysis on LTE network coverage of high-speed railway. Firstly, the specifi cities of LTE network coverage of high-speed railway were addressed. Then, from aspects of train＇s penetration loss, Doppler shift and the linear extension of high-speed railway track, the overall principle of the planning and deployment for high-speed railway stations was derived. The station planning for special scenario and main planning parameter designs for high-speed railway LTE network were discussed. In addition, the handover strategy for high-speed railway LTE network was researched. Finally, the feasibility and effectiveness of the proposed solution were proved by the practical test results of high-speed railway LTE network.
出处
《移动通信》
2016年第1期84-90,共7页
Mobile Communications
关键词
高铁
LTE网络
多普勒频移
切换策略
high-speed railway
LTE network
Doppler shift
handoff strategy
