For lower download speed and poor user perception brought by conventional single-band high-speed railway TD-LTE private network ,a method of F1 + F2 dual-band networking for building TD-LTE high-speed railway private network is proposed to improve download speed and user perception ,on which CA technology and an improved PF algorithm are also used .Firstly ,characteristics of high-speed railway TD-LTE private net-work and problems that current networking way faces are analyzed .Secondly ,characteristics of F1 + F2 dual-band networking ,CA technology principle ,improved PF resource scheduling algorithm theory are described in detail .Their implementing steps in high-speed railway TD-LTE private network are also expounded .At last ,it is showed that the proposed method can effectively improve download speed and user perception of high-speed railway private network's users by practical application verification .%针对传统单频段高速铁路TD-LTE专网组网方式中网络下载速率较低、用户感知较差的问题,提出一种采用F1+F2双频段组网方式建设高速铁路TD-LTE专网,并通过开启CA以及改进型PF资源分配算法提升下载速率、改善用户体验的方法,分析高速铁路TD-LTE专网覆盖的特点、需求及当前单频段组网方式下所面临的问题.对F1+F2双频段组网策略的特点及在高速铁路专网上进行优化的实施步骤进行介绍,对C A原理进行阐述,并在此基础上提出改进型PF资源调度算法.通过实际应用验证,表明所提方法可以明显提升高速铁路专网用户的下载速率,改善客户的网络感知.
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