| 基于I/Q数据的5G控制信道盲检 |
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| 引用本文： | 姜国凯,魏贵明,李雷,杨业鑫.基于I/Q数据的5G控制信道盲检[J].移动通信,2022(2):80-84. |
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| 作者姓名： | 姜国凯 魏贵明 李雷 杨业鑫 |
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| 作者单位： | 中国汽车技术研究中心有限公司;中国信息通信研究院技术与标准所无线与移动研究部;电信科学技术研究院 |
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| 摘 要： | 为了研究真实环境5G下行I/Q解码流程,构建"5G核心网+5G基站+测试终端+I/Q数字采集系统"的测试环境,采集基站下行空口信号I/Q数据,并基于3GPP第15版本标准,开展5G下行控制信道PDCCH盲检流程研究,包括候选PDCCH时频域位置确定、信道估计与相关检测,PDCCH比特序列解码流程(含解扰,解速率匹配,极...
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| 关 键 词： | 5G I/Q数据 控制信道 信号解码 |
5G Physical Downlink Control Channel Blind Detection Based on I/Q Data |
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| JIANG Guokai,WEI Guiming,LI Lei,YANG Yexin.5G Physical Downlink Control Channel Blind Detection Based on I/Q Data[J].Mobile Communications,2022(2):80-84. |
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| Authors: | JIANG Guokai WEI Guiming LI Lei YANG Yexin |
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| Affiliation: | (China Automotive Technology and Research Center Co.,Ltd.,Tianjin 300300,China;China Academy of Information and Communications Technology,Beijing 100191,China;China Academy of Telecommunications Technology,Beijing 100191,China) |
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| Abstract: | In order to investigate 5G downlink I/Q decoding process in the real environment,a test environment of"5G core network+5G base station+test terminal+I/Q digital acquisition system"is constructed.Via collecting the downlink air interface signal I/Q data of a base station,the blind detection process of 5G PDCCH(physical downlink control channel)is studied based on 3GPP release 15 standard,including candidate PDCCH time-frequency domain position determination,channel estimation and correlation detection,and the decoding process of PDCCH bit sequence(including descrambling,de-rate matching,polar code decoding,cyclic redundancy check,information parsing,etc.).Key parameters of the third layer,protocol procedures,algorithm principle,and PDCCH decoding constellation diagram are presented. |
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| Keywords: | 5G I/Q data control channel signal decoding |
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