基于TD-LTE回传系统的高铁通信系统

Discussion on high speed railway communication system based on TD-LTE backhaul system

随着高铁的不断发展,2G、3G通信网络已经无法满足高速下的用户需求,通信质量和网络容量已经是高铁通信系统的瓶颈。本文探讨了基于TD-LTE回传系统的高铁通信系统架构,对架构的QoS保障进行详细分析,并针对有限的空口资源研究了具体的空口承载映射方案。

With the rapid development of high speed railway,the 2nd and 3rd generation networks no longer meet the user’s requirement in high speed scenario.The communication quality and network capacity have become the bottleneck of performance for high speed railway communication system.This work discusses the architecture of high speed railway communication system based on TD-LTE backhaul system,analyzes its feasibility,and focuses on the research of detailed mapping strategy of air interface bearer for the limited air interface resources.