同时同频全双工技术及其发展现状  

Co-time co-frequency full duplex:techniques and status

作　　者：冯浩 马宏 焦义文 李雪健 FENG Hao;MA Hong;JIAO Yiwen;LI Xuejian(Graduate School,Space Engineering University,Beijing 101416,China;Key Laboratory of Intelligent Space TTC&O,Ministry of Education,Beijing 101416,China)

机构地区：[1]航天工程大学研究生院,北京101416 [2]智能化航天测运控教育部重点实验室,北京101416

出　　处：《航天工程大学学报》2025年第1期70-80,共11页

基　　金：国防科技发展应用推进计划项目(145BKJ050522000X)。

摘　　要：同时同频全双工(Co-time Co-frequency Full Duplex,CCFD)技术能够有效地解决当前频谱资源短缺的问题,理论上可以将频谱利用率和系统容量提升1倍,如何高效抑制自干扰信号是实现CCFD体制需要攻克的关键技术。从空间域、射频(Radio Frequency,RF)域、数字域3个方面对全双工自干扰抑制技术的研究现状进行了详细地梳理和归纳,并深入分析了当前研究存在的缺陷和不足,并从技术发展和应用两个角度对CCFD技术的发展趋势进行了展望。Co-time Co-frequency Full Duplex(CCFD)technology can effectively solve the problem of the shortage of current spectrum resources.Theoretically,it can double the spectrum utilization rate and system capacity.How to efficiently suppress self-interference signals is the key technology to be overcome in the realization of a CCFD system.CCFD model is introduced,the current research status of full-duplex self-interference suppression technology is reviewed and summarized in details from three aspects of spatial domain,Radio Frequency(RF)domain,and digital domain,and the defects and shortcomings of the current research have been analyzed in depth.The development trend of simultaneous full-duplex technology has been prospected from two perspectives of technology development and technology application.

关 键 词：同时同频全双工 自干扰抑制技术 第五代移动通信 频谱资源 系统容量 

分 类 号：TN929.5[电子电信—通信与信息系统]