5G低功耗通感融合半实物验证系统的设计与开发

Design and Implementation of 5G Emulation System for Low-power Integrated Sensing and Communication

随着5G的快速商用,世界范围内也已经逐步开展了面向5G-Advanced/6G的关键技术和潜在应用研究。在以往无线通信系统研究中,软件仿真对评估关键技术和系统性能具有重要作用,但软件仿真无法体现真实无线环境对系统的影响。相比软件仿真,基于软件定义无线电技术的半实物平台可以工作在实际无线环境,评估真实信道条件下无线通信系统性能。主要研究了基于5G半实物平台的低功耗通感融合系统的设计与开发。5G半实物平台包含基于第三代合作伙伴计划(3GPP)标准开发的5G半实物基站和5G半实物终端,基站和终端之间通过空口实现数据传输。通过结合5G信号和反向散射通信设计低功耗感知系统,实现人员检测功能,为后续5G-Advanced/6G的实际应用提供了初步验证。

With the rapid commercialization of the 5th generation communication system(5G), the research on the key technologies and the applications towards 5G-Advanced/6G has been initiated around the world. In the past research on wireless communication systems, software simulations play an important role in evaluating key technologies and system performance, but they cannot reflect the impact of realistic wireless environments on the system. By contrast, software defined radio(SDR)-based emulation platforms can work in realistic wireless environment and evaluate the performance of wireless communication system under real channel conditions. In this paper, the design and implementation of 5G emulation systems for low-power integrated sensing and communication are investigated. The 5G emulation system consists of 5G semi-physical base station and terminal which has been developed in accordance with 3GPP NR specification, and the data transmission between the base station and the terminal is realized by the air interface. By combining 5G signals and backscatter communication to design a low-power sensing system, the personnel detection function is realized, which provides a preliminary verification on subsequent practical 5G-Advanced/6G applications.