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
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
针对第五代移动通信(5G)技术发展的趋势,分析了5G的发展为测试系统带来的新需求和挑战。针对挑战,提出了可持续发展的测试生态系统的概念,从软件和硬件两个方面具体探讨了"以软件为核心"和"以大规模多输入多输出空口(MIM...针对第五代移动通信(5G)技术发展的趋势,分析了5G的发展为测试系统带来的新需求和挑战。针对挑战,提出了可持续发展的测试生态系统的概念,从软件和硬件两个方面具体探讨了"以软件为核心"和"以大规模多输入多输出空口(MIMO OTA)为基础"两大特征。在以软件为核心测试方式部分详细探讨了基于现场可编程门阵列(FPGA)的知识产权部署到测试管脚(IP to the PIN)和支持并行测试和海量信号处理的异质计算两项技术。展开更多
With the ever-growing requirement for higher data rates, terminals supporting multiple-input multiple-output (MIMO) technologies are being developed for next-generation. As for wireless device manufacturers, a radio p...With the ever-growing requirement for higher data rates, terminals supporting multiple-input multiple-output (MIMO) technologies are being developed for next-generation. As for wireless device manufacturers, a radio performance evaluation of multi-antenna terminals in desired environments is mandatory before product release. This paper discusses the Over the Air (OTA) performance evaluation of antenna diversity systems in Indoor and Outdoor multi-path propagation channel models inside anechoic chamber, in terms of correlation coefficients and diversity gain (DG). These channel models have been emulated in terms of angles of arrivals (AoA) and cross-polarization ratio (XPR) with Rayleigh fading. For this purpose, SATIMO SG24 measurement system has been used. However, the actual configuration of this system is not able to emulate desired realistic environments. Therefore, an innovative methodology based on the SG24 probes control has been developed. The obtained results in simulations and measurements have shown a good agreement.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。
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。
文摘针对第五代移动通信(5G)技术发展的趋势,分析了5G的发展为测试系统带来的新需求和挑战。针对挑战,提出了可持续发展的测试生态系统的概念,从软件和硬件两个方面具体探讨了"以软件为核心"和"以大规模多输入多输出空口(MIMO OTA)为基础"两大特征。在以软件为核心测试方式部分详细探讨了基于现场可编程门阵列(FPGA)的知识产权部署到测试管脚(IP to the PIN)和支持并行测试和海量信号处理的异质计算两项技术。
文摘With the ever-growing requirement for higher data rates, terminals supporting multiple-input multiple-output (MIMO) technologies are being developed for next-generation. As for wireless device manufacturers, a radio performance evaluation of multi-antenna terminals in desired environments is mandatory before product release. This paper discusses the Over the Air (OTA) performance evaluation of antenna diversity systems in Indoor and Outdoor multi-path propagation channel models inside anechoic chamber, in terms of correlation coefficients and diversity gain (DG). These channel models have been emulated in terms of angles of arrivals (AoA) and cross-polarization ratio (XPR) with Rayleigh fading. For this purpose, SATIMO SG24 measurement system has been used. However, the actual configuration of this system is not able to emulate desired realistic environments. Therefore, an innovative methodology based on the SG24 probes control has been developed. The obtained results in simulations and measurements have shown a good agreement.
