面向6G的毫米波多频段多天线信道测量系统构建及实测验证

Construction and measurement verification of 6G mm Wave multi-band multi-antenna channel measurement system

毫米波是5G和6G无线通信系统的关键技术.设计满足6G多频段、多天线、高动态范围需求的信道测量系统是6G无线信道研究面临的首要挑战.针对这一需求,本文构建了一种毫米波多频段多天线信道测量系统,可以覆盖24.25~28.5 GHz、31.8~33.4 GHz、37~42.5 GHz等毫米波频段,支持最高16×16天线配置.首先介绍该信道测量系统的架构与性能指标,提出多通道并行校准方案以及测量数据处理算法;其次,基于该信道测量系统开展26 GHz室内外场景的信道测量实验,分析路径损耗、时延扩展以及奇异值扩展等信道统计特性.通过对实测结果分析,验证了该信道探测器用于毫米波段测量的有效性.

The millimeter-wave(mmWave) is a key technology of the fifth and sixth generation wireless communication systems. Designing a channel measurement system that can meet the requirements of 6G multi-band,multi-antenna and high dynamic range is the primary challenge for 6G wireless channel research. To meet this requirement, a mmWave multi-band channel measurement system is constructed in this paper, which can cover24.25-28.5 GHz, 31.8-33.4 GHz, 37-42.5 GHz and other mmWave bands and can support up to 16×16 multi-antenna channel measurements. Firstly, the architecture and performance of the channel measurement system are introduced,and a multichannel parallel calibration scheme and measurement data processing algorithm are proposed. Secondly, the channel measurement experiments at frequency of 26 GHz in indoor and outdoor scenarios are conducted based on the channel measurement system, and the channel statistical characteristics such as path loss and delay spread are analyzed to verify the effectiveness of the channel measurement system. Through the analysis of the measured results, the effectiveness of the channel detector for mmWave band measurement is verified.