基于网络辅助全双工无蜂窝系统的通感一体化协议设计  

Integrated Sensing and Communication Protocol Design for Network-Assisted Full-Duplex Cell-free Systems

作　　者：于景轩 刘蕊 李佳珉 潘志文[1] YU Jingxuan;LIU Rui;LI Jiaming;PAN Zhiwen(National Mobile Communications Research Laboratory,Nanjing 210096,China)

机构地区：[1]东南大学移动通信国家重点实验室,江苏南京210096

出　　处：《移动通信》2024年第3期114-120,共7页Mobile Communications

基　　金：国家重点研发计划项目“6G超低时延超高可靠大规模无线传输技术”(2021YFB2900300);国家自然科学基金“全双工无线回传密集分布式MIMO无线通信理论与技术研究”(61971127);中央高校基本科研业务费专项资金资助(2242022k60006);PCL重大重点项目(PCL2021A01-2)。

摘　　要：第六代移动通信技术的研究受到了广泛关注。随着通信和雷达频率范围的重叠,学者们对通感一体化的研究产生了浓厚兴趣。然而,分布式联合感知技术目前仍面临自干扰和互干扰等物理层挑战。基于第五代新空口协议,提出了一种针对网络辅助全双工无蜂窝系统的通感一体化协议方案,增设了感知解调参考信号。这一创新旨在通过低成本的改动,实现高质量的高通感一体化性能。该方案有效地解决了无蜂窝场景中接入点之间的感知干扰问题,它使得接收机能够准确地识别信源并估计信道,从而在确保通信性能的同时,实现精确的感知功能。Research on the sixth generation of mobile communication technology has attracted widespread attention.With the overlap of communication and radar frequency ranges,scholars have developed a keen interest in integrated sensing and communication(ISAC).However,distributed joint sensing technologies still face physical layer challenges such as self-interference and mutual interference.Based on the 5G new radio protocol,a novel ISAC protocol scheme for network-assisted full-duplex cell-free systems is proposed,incorporating sensing demodulation reference signals.This innovation aims to achieve high-quality ISAC performance with low-cost modifications.The scheme effectively resolves the sensing interference between access points in cell-free scenarios.It enables the receiver to accurately identify the signal source and estimate the channel,thus ensuring communication performance while achieving precise sensing capabilities.

关 键 词：网络辅助全双工 无蜂窝 通感一体 协议设计 

分 类 号：TN929.5[电子电信—通信与信息系统]