一种LTE系统中减少PDCCH盲检次数的方法

摘要

This paper investigated the algorithm of PDCCH blind detection in LTE system. By analyzing the current algorithm of bund detection, proposed an improved algorithm that changed the first search level and changed the method of selecting the next search level. Compared two methods performance simulation, the numbers after improved is less than before improved, the results of simulation verify that the selected algorithm is feasible and effective.%重点研究了长期演进LTE(Long Term Evolution)系统的物理下行控制信道PDCCH (Physical Downlink Control Channel)盲检算法.通过对目前盲检算法的分析,提出了一种通过改变第一个搜索等级和改变选取下一搜索等级方式的改进算法.对两种算法的性能进行了仿真比较,结果表明,改进后的盲检次数比改进前的盲检次数要少,改进算法可行、有效.