可重构智能表面辅助的通信感知一体化系统

杨晓宇，尉志青，孟春伟

（北京邮电大学，中国 北京 100876）

摘要：通信感知一体化（ISAC）是6G移动通信的候选技术之一，可实现感知和通信的集成和优势互补。可重构智能表面（RIS）由于能够智能地控制传播环境，提高网络的容量和覆盖率，而成为6G实现广泛连接的一项关键技术。认为将RIS部署于ISAC系统可以提供一个新的通信和感知性能优化维度。从ISAC的研究意义出发，探讨了ISAC的关键技术，概述了RIS的工作原理及其在感知系统和通信系统中的应用，并重点分析了RIS辅助ISAC以更好地实现感知目标和服务通信用户的研究现状。

关键词：通信感知一体化；可重构智能表面；6G；频谱资源

Reconfigurable Intelligent Surface-Assisted Integrated Sensing and Communication System

YANG Xiaoyu, WEI Zhiqing, MENG Chunwei

(Beijing University of Posts and Telecommunications, Beijing 100876, China)

Abstract: Integrated sensing and communication (ISAC) is recognized as one of the candidate technologies of 6G mobile communication, aiming to realize the integration and mutual benefit of sensing and communication. Considering that the reconfigurable intelligent surface (RIS) can intelligently control the propagation environment to improve the capacity and coverage of the network, it has become a key technology for 6G to achieve extensive connectivity. It is believed that deploying RIS on ISAC systems can provide a new performance optimization dimension of communication and sensing. The research significance of ISAC is highlighted, and the key technologies of ISAC are discussed. The working principle of RIS and its applications in sensing system and communication systems are summarized. Finally, the research status of RIS-assisted ISAC to better realize the sensing target and serve the communication users is analyzed.

Keywords: integrated sensing and communication; reconfigurable intelligent surface; 6G; spectrum resource