LTE下行物理信道薄弱环节研究  

Study on Weakness of LTE Downlink Physical Channels

作　　者：朱辉杰[1,2] 江斌[1,2] 

机构地区：[1]通信信息控制和安全技术重点实验室,浙江嘉兴314033 [2]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《通信对抗》2016年第4期30-33,共4页Communication Countermeasures

摘　　要：介绍了LTE通信系统物理层各下行传输信道,并对物理控制格式指示信道(PCFICH)进行了重点研究。分析了加性白高斯噪声(AWGN)环境下不同带宽配置的PCFICH传输性能,提出了针对该信道的灵巧干扰方法并经仿真验证,从而发现了系统传输的薄弱环节,并针对该薄弱环节提出了相应抗干扰措施。研究结果对LTE系统干扰/抗干扰设计具有借鉴意义。This paper introduces the downlink physical channels of the long-term evolution （LTE） communi- cation system, and the focus is all on the physical control format indicator channel （PCFICH）. The performance of PCFICH in additive white Ganssian noise （AWGN） channel with different bandwidths is analyzed. Some smart jamming realization methods are then proposed, the effectiveness of which is verified by numerical simu- lations. As a resuk, the weakness of LTE downlink physical channels is found and corresponding anti-jamming measures are also proposed. The research results of this paper provide a reference for the jamming and an- ti-jamming design of the LTE communication system.

关 键 词：LTE PCFICH 灵巧干扰 抗干扰 

分 类 号：TN97[电子电信—信号与信息处理]