通信感知一体化关键技术与挑战  

Key Technologies and Challenges for Integrated Sensing and Communication

作　　者：姜大洁 姚健 李健之 丁圣利 杨坤 袁雁南 陈保龙 秦飞 JIANG Dajie;YAO Jian;LI Jianzhi;DING Shengli;YANG Kun;YUAN Yannan;CHEN Baolong;QIN Fei(vivo Mobile Communication Co.,Ltd.,Beying 100015,China)

机构地区：[1]维沃移动通信有限公司通信研究院,北京100015

出　　处：《移动通信》2022年第5期69-77,共9页Mobile Communications

摘　　要：通信感知一体化将是6G的标志特征之一,通感一体化系统是指在同一系统中通过频谱共享、硬件共享、信号共享等方式,在进行信息传递的同时,感知目标物体的方位、距离、速度等信息,或者对目标物体、事件或环境等进行检测、跟踪、识别、成像等。通感一体化系统相比通信和感知分离的系统,能获得融合增益与协作增益。首先介绍了通感一体化的场景与性能指标,然后介绍了通感一体化的感知方式和感知流程,以及通感一体化波形设计、MIMO-通感一体化技术、通感一体化与backscatter和RIS技术结合等关键技术;最后介绍了通感一体化在性能评价指标、信道建模与仿真方法、硬件非理想因素的影响、隐私与计费等方面面临的挑战。克服这些挑战是通感一体化未来实现规模商用的重要前提。Integrated sensing and communication(ISAC) is regarded as one of the hallmarks of 6G. ISAC system refers to the sharing of spectrum, hardware and signals to sense the orientation, distance, and speed of the target while transferring information, or to detect, track, identify, and image the target, event, or environment. Compared with the system in which communication and sensing are separated, the ISAC system can obtain integration gain and cooperation gain. First, the application scenarios and performance metrics of ISAC are introduced. Then, the sensing method and procedures of ISAC, as well as key technologies such as ISAC waveform, MIMO-ISAC, and ISAC combined with backscatter and RIS, are introduced. Finally, the challenges of ISAC in performance evaluation metrics, channel modeling and simulation methodology, the influence of hardware non-ideal factors, privacy, and billing are introduced. How to overcome these challenges is an important prerequisite for large-scale commercial use of ISAC in the future.

关 键 词：6G 通信感知一体化 MIMO 通感一体化波形 硬件非理想因素 

分 类 号：TN929.5[电子电信—通信与信息系统]