无线电通信技术2024，Vol.50Issue(5)：886-892,7.DOI:10.3969/j.issn.1003-3114.2024.05.006
UMa场景中频段XL-MIMO信道测量与特性分析
Channel Measurement and Characteristics Analysis of XL-MIMO in UMa Scenario for Mid-band
摘要
Abstract
Extremely Large-scale Multiple-Input Multiple-Output(XL-MIMO)is a key potential technology for 6G communication systems,which significantly improves the security,energy efficiency,spatial efficiency,and robustness of the system.The study of XL-MIMO channels is very important for system design and deployment.In addition,to solve the problem of spectrum shortage,the mid-band(7～24 GHz)will be one of the potential application frequency bands for 6G,and the XL-MIMO system may also be applied in this frequency band.As the scale of the antenna array increases,the XL-MIMO channel will appear near-field and spatial non-sta-tionary characteristics,which brings challenges to the XL-MIMO channel modeling.To study the near-field and spatial non-stationary characteristics of the XL-MIMO channel under the mid-band,the XL-MIMO channel under 13 GHz was measured in the Urban Macro-cell(UMa)scenario,and the near-field and spatial non-stationary characteristics were analyzed through multipath parameters.Analysis results show that the near-field spherical wave will cause the multipath angle to shift in the array domain.The spatial non-stationary effect will cause the uneven distribution of multipath power and angle spread in the array domain.Above observations provide some in-sights for 6G XL-MIMO channel modeling.关键词
超大规模多输入多输出/信道测量/中频段/6GKey words
XL-MIMO/channel measurement/mid-band/6G分类
信息技术与安全科学引用本文复制引用
魏琦,唐盼,缪海烊,左伟穰,张建华..UMa场景中频段XL-MIMO信道测量与特性分析[J].无线电通信技术,2024,50(5):886-892,7.基金项目
国家杰出青年科学基金(61925102) （61925102）
国家自然科学基金(62201086,62101069,92167202) National Science Fund for Distinguished Young Scholars(61925102) （62201086,62101069,92167202）
National Natural Science Foundation of China(62201086,62101069,92167202) （62201086,62101069,92167202）
