计算机应用与软件2024，Vol.41Issue(11)：188-192,227,6.DOI:10.3969/j.issn.1000-386x.2024.11.026
5G系统PDCCH盲检测的优化算法
OPTIMIZATION ALGORITHM FOR BLIND DETECTION OF PDCCH IN 5G SYSTEM
摘要
Abstract
Aimed at the performance of blind detection of the physical downlink control channel(PDCCH)in the 5G system,an optimization algorithm for blind detection is proposed.In this algorithm,when the signal-to-noise ratio(SNR)is lower than the decision threshold,the channel state quality is judged according to the channel quality indication(CQI),and the aggregation level(AL)order is selected for blind detection.When the SNR is higher than the decision threshold,the PDCCH candidate with the highest power in each AL is blindly detected.Evaluation was conducted on this algorithm from blind detection times and missed detection rate.The results show that the missing detection rate is close to the traditional blind detection algorithm and the average number of blind detection is reduced.Thus,the efficiency of PDCCH blind detection and the reliability of channel transmission in the 5G system are improved.关键词
5G/物理下行控制信道/盲检Key words
5G/Physical downlink control channel/Blind detection分类
信息技术与安全科学引用本文复制引用
汪晓雅,席兵,邓炳光,高锦盟..5G系统PDCCH盲检测的优化算法[J].计算机应用与软件,2024,41(11):188-192,227,6.基金项目
重庆市技术创新与应用发展专项重大主题专项5G路测仪表的研发及应用项目(cstc2019jscx-zdztzxX0002). （cstc2019jscx-zdztzxX0002）
