5G终端MIMO OTA测试与标准化研究进展  

MIMO OTA Testing and Standardization Study Progress of 5G Terminals

作　　者：祝思婷 谢江 安旭东 赵磊 Zhu Siting;Xie Jiang;An Xudong

机构地区：[1]中国信息通信研究院泰尔终端实验室天线与定位部 [2]中国信息通信研究院

出　　处：《安全与电磁兼容》2021年第4期17-23,共7页Safety & EMC

基　　金：国家重点研发计划资助项目(2019 YFF0216600)。

摘　　要：随着通信技术的发展,终端多天线系统的设计中引入了更多5G天线,MIMO技术的复杂性使得多天线用户设备在性能评估与测试验证中面临更大挑战。介绍了5G移动终端FR1频段MIMO OTA测试技术,对比了与LTE MIMO OTA测试方法的关键差异,在实际多探头全电波暗室(MPAC)环境下采用多款5G商用终端开展了4×4及2×2 MIMO OTA性能测试。结果表明,FR1 MIMO OTA测试方案能够有效地区分不同用户设备(UE)的多天线性能差异,且现有5G终端产品在不同测试姿态、测试角度下多天线性能差异较大。文章还从实测与标准化角度解读了3GPP、CCSA、CTIA在5G终端FR1 MIMO OTA测试方面的研究进展。With the development of communication technology,more 5G antennas have been introduced in the design of terminal multi-antenna systems.The complexity of MIMO technology makes the multi-antenna user equipment face greater challenges in performance evaluation and test verification.The FR1 MIMO OTA test technology of 5G mobile terminals is presented and the key differences with LTE MIMO OTA test methods are discussed.In the actual Multi-Probe Anechoic Chamber,several commercial 5G terminals are used to carry out the 4×4 and 2×2 MIMO OTA performance test.According to the test results,the FR1 MIMO OTA test solution can effectively distinguish the multi-antenna performance differences of different UEs,and the existing 5G terminal products have large differences in multi-antenna performance under different test modes and orientations.Meanwhile,the study progress of 3GPP,CCSA and CTIA in FR1 MIMO OTA is interpreted from the perspective of measurement and standardization.

关 键 词：5G 多输入多输出空口测试 多探头全电波暗室 标准化 

分 类 号：TN929.5[电子电信—通信与信息系统]