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Random Access Algorithm of LTE TDD System Based on Frequency Domain Detection

机译:基于频域检测的LTE TDD系统随机接入算法

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In this paper, the basic process of random access is briefly introduced first, a frequency-domain detection algorithms Suitable for criterion is proposed based on the structural characteristics of LTE TDD PRACH format4, PRACH signal launch model and key features of Zadoff-Chu sequence. Under the program in the detection of user testing, uplink synchronization estimate and analysis of the coverage area, the simulation results and conclusions are drawn finally. The simulation results show that the algorithm is low computational complexity, and can be carried out at the same time for multiuser detection and synchronization estimate compared to traditional time-domain matching method.
机译:本文首先简要介绍了随机接入的基本过程,根据LTE TDD PRACH格式4的结构特点,PRACH信号发射模型和Zadoff-Chu序列的关键特性,提出了一种适用于判据的频域检测算法。在用户测试检测,上行同步估计和覆盖区域分析的程序下,最后得出了仿真结果和结论。仿真结果表明,与传统的时域匹配方法相比,该算法计算复杂度低,可以同时进行多用户检测和同步估计。

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