摘要
LTE系统中,物理随机接入信道(PRACH)的前导检测是整个随机接入过程的关键,提高前导检测的正确性是随机接入的主要任务之一。基于LTE FDD系统采用不同的子帧配置来提高物理随机接入信道前导检测的正确概率。仿真实验结果表明,不同的子帧配置能够影响正确检测概率,但要达到一定的信噪比时才能够得到给定的正确检测概率,从而满足用户所需的随机接入性能要求。
In the LTE system,the physical random access channel （PRACH） preamble detection is the key factor for the performance of a random access procedure.Improving the accuracy of preamble detection is one of the main tasks of the random access.This article adopts different sub-frame configuration to improve correct probability of the physical random access channel preamble detection in the LTE FDD system.Simulation test results show that the correct detection probability can be affected by the different sub-frame configuration,but be given in a condition of a certain signal-to-noise ratio,thereby the requirements of the random access required by the users are met.
出处
《微处理机》
2013年第5期35-37,40,共4页
Microprocessors
