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...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。展开更多
In this paper, channel spatial characteristics which mainly depend on the spatial correlation are selected as the significant factors in over-the-air （OTA） testing for multiple input multiple output （MIMO） devices...In this paper, channel spatial characteristics which mainly depend on the spatial correlation are selected as the significant factors in over-the-air （OTA） testing for multiple input multiple output （MIMO） devices. The multi-probe anechoic chamber method, a promising candidate of the MIMO OTA testing methods, can reproduce the multipath environments in a controllable manner. A novel physical configuration based on the variation of relative positions of probes in a MIMO OTA setup is put forward to obtain better spatial characteristics. Two physical configurations are presented to make a comparison with the typical configuration in this paper. The simulation results show that by making a proper probe configuration, good channel simulation accuracy can be achieved. Meanwhile, in order to get better performance of emulating channel spatial characteristics, probes in the first and the last probe rings should be placed symmetrically in three dimensional （3D） physical probe configuration.展开更多
介绍了5G无线终端在FR1与FR2频段的MIMO OTA测试方法,描述了与LTE MIMO OTA测试方案的差异以及5G测试面临的挑战,详细分析了最新的5G MIMO OTA技术,从标准化角度分析了CCSA、CTIA和3GPP在5G多天线测试标准方面的研究进展,比对分析了多...介绍了5G无线终端在FR1与FR2频段的MIMO OTA测试方法,描述了与LTE MIMO OTA测试方案的差异以及5G测试面临的挑战,详细分析了最新的5G MIMO OTA技术,从标准化角度分析了CCSA、CTIA和3GPP在5G多天线测试标准方面的研究进展,比对分析了多探头法(MPAC)、辐射两步法(RTS)的技术特点和标准化现状。展开更多
文摘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。
基金supported by the National Natural Science Foundation of China(61327806)the Youth Foundation of Beijing University of Posts and Telecommunications(2016RC14)The Corresponding Patent(CN 106209284 A)is pending
文摘In this paper, channel spatial characteristics which mainly depend on the spatial correlation are selected as the significant factors in over-the-air （OTA） testing for multiple input multiple output （MIMO） devices. The multi-probe anechoic chamber method, a promising candidate of the MIMO OTA testing methods, can reproduce the multipath environments in a controllable manner. A novel physical configuration based on the variation of relative positions of probes in a MIMO OTA setup is put forward to obtain better spatial characteristics. Two physical configurations are presented to make a comparison with the typical configuration in this paper. The simulation results show that by making a proper probe configuration, good channel simulation accuracy can be achieved. Meanwhile, in order to get better performance of emulating channel spatial characteristics, probes in the first and the last probe rings should be placed symmetrically in three dimensional （3D） physical probe configuration.
文摘介绍了5G无线终端在FR1与FR2频段的MIMO OTA测试方法,描述了与LTE MIMO OTA测试方案的差异以及5G测试面临的挑战,详细分析了最新的5G MIMO OTA技术,从标准化角度分析了CCSA、CTIA和3GPP在5G多天线测试标准方面的研究进展,比对分析了多探头法(MPAC)、辐射两步法(RTS)的技术特点和标准化现状。
