摘要
针对LTE-A网络结构以及运行机制复杂造成通信网络测试优化困难,以及国内LTE-A网络监测分析的设备的短缺问题,基于此进行了LTE-A空口监测分析仪表的研发。下行控制信道(PDCCH)承载了下行控制信息(DCI),是LTE-A系统资源调度的核心。根据PDCCH信道发送流程,设计下行控制信道盲检方法,为空口监测分析仪表快速准确获取下行控制信息提供支持。盲检流程包括解速率匹配、Viterbi译码、RNTI解扰、CRC校验,使仪表在当前PDCCH承载的下行控制信息格式及位置的未知的情况下,盲检出属于自己的DCI信息。
In order to monitor and optimize the complex LTE-A communication network and solve the shortage of domestic LTEA network monitoring and analysis equipment, based on this, the LTE-A air interface monitoring and analysis instrument was developed. The PDCCH carrying the DCI is the core of LTE-A resource scheduling. According to the transmission process of the PDCCH channel, the blind detection method of the downlink control channel is designed to provide support for the air interface monitoring and analysis instrument to quickly and accurately obtain the downlink control information. The blind detection process includes de-rate matching, Viterbi decoding, RNTI descrambling, and CRC check, so that the meter blindly detects its own DCI information when the downlink control information format and location of the current PDCCH are unknown.
作者
张波
程方
黄汉仲
Zhang Bo;Chen Fang;Huang Hanzhong(Key lab On Communication Networks and Testing Technology,School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065)
出处
《信息通信》
2019年第2期9-11,共3页
Information & Communications
基金
国家科技重大专项(2015ZX03001013)
重庆高校创新团队项目(KJTD201312)
