6G通信感知一体化理论与技术

Principles and techniques in communication and sensing integrated 6G systems

为实现人机物智慧互联、智能体高效互通,第6代移动通信系统(the sixth generation of mobile communications system,6G)需要充分利用通信设备蕴含的感知潜能进行通信感知一体化,从而实现极高传输速率、极低传输时延、高精度宽范围感知等性能目标.鉴于此,总结6G通信感知一体化国内外最新研究进展,包括通信感知一体化信息理论、通信感知一体化波形、通信感知一体化多址接入和干扰处理等技术.以太赫兹频段为例,重点总结太赫兹通信感知一体化研究进展,并展望通信感知一体化未来发展及其挑战.

In order to realize the intelligent interconnection of human-machine-things as well as the efficient interaction between intelligent agents,the sixth generation of mobile communications system(6 G)needs to make full use of the potential sensing function of the communication device to integrate communication and sensing.In this way,the promised performance requirements can be satisfied,including extremely high data rate,ultra-low latency,high-precision-widerange sensing,etc.This survey summarizes the state of the arts from the perspectives of information theory,and then the critical challenges,such as integration waveform techniques,multiple access of integrated communication and sensing,and interference suppressions,are discussed.In particular,the research fruits of integrated communication and sensing in the Terahertz frequency band are exhibited in detail.At last,several open issues are posted at the end of the survey to indicate the research directions.