【摘要】 同时同频全双工在相同频率资源上同时进行信号的收发,频谱利用率理论上可以提升1倍,因此受到广泛关注。然而,全双工设备在接收信号的同时,也会遭受本地信号发射带来的强干扰。针对强干扰信号的非线性典型特征,分析了非线性自干扰抑制技术,并探讨大功率发射和阵列天线场景中,可能的非线性干扰抑制方法,为大功率、多天线全双工设备研制提供架构和算法层面的设计指导。更多还原

【Abstract】 Co-time and Co-frequency Full Duplex(CCFD)technique enables a radio to transmit and receive signals simultaneously using the same frequency resources,and hence doubles the spectrum efficiency theoretically. However,a CCFD radio will suffer from severe self-interference(SI)caused by local signal transmission during signal reception procedure. According to the inherent nonlinear characteristics of the self-interference signals,it analyzes the nonlinear self-interference cancellation(SIC)techniques,and discusses possible nonlinear interference suppression methods in high-power transmission and array antenna scenes,which would provide some architecture and algorithm design guidance for the development of high-power,multi antenna CCFD equipment.更多还原