做为新一代的移动通信系统，TD-LTE的随机接入较2G/3G系统有更为精细的设计要求，为了使高速铁路中的TD-LTE网络能更稳定地运行，从Preamble、根序列和NCS等方面着手分析，总结出了一套适合中国高铁的TD-LTE PRACH参数体系，并对其进行了验证，验证得到了良好的效果。%As the new generation of mobile communication system, the random access in TD-LTE has higher design requirements than 2G/3G systems. In order to guarantee the stability of TD-LTE network in high-speed railway, a set of TD-LTE PRACH parameters suitable for high-speed railway of China was summarized according to preamble, root sequence and Ncs, and then these parameters were veriifed by the good effect.
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