This article reports the implementation and coverage map of a mm-waves femtocell, using a high-gain omnidirectional twisted slotted-waveguide antenna array (SWAA). The twisted SWAA provides 14.7 dBi gain and 1.1-GHz bandwidth in the frequency range 2 (FR2) from the 5G new radio (5G NR) standard. A 91-m ² indoor coverage is demonstrated and its coverage map is estimated by measurements of the root mean square error vector magnitude (EVM _RMS ) parameter at 36-spatially distributed reception points throughout the laboratory. The 5G NR femtocell operates with 50-MHz bandwidth and 30 kHz-spaced subcarriers, giving rise to 104.8 Mbit/s throughput, whose signal quality is analyzed accordingly to the 3GPP Release 15 recommendations. Line-of-sight (LOS) and NLOS (non-LOS) propagation scenarios are evaluated, implying in EVM _RMS variation from 3.13% to 19.4%. Coverage of 94% and 89% are achieved for QPSK (Quadrature Phase Shift Keying) and 16-QAM (Quadrature Amplitude Modulation) systems, respectively, demonstrating its applicability to the deployment of 5G NR femtocell operating in mm-waves.

中文翻译：

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使用全向扭曲SWAA的5G NR FR2 Femtocell覆盖图

本文报告了使用高增益全向扭曲缝隙波导天线阵列（SWAA）的毫米波毫微微小区的实现和覆盖图。扭曲的SWAA在5G新无线电（5G NR）标准的频率范围2（FR2）中提供14.7 dBi增益和1.1 GHz带宽。演示了一个91 m ^2的室内覆盖范围，并通过测量均方根误差矢量幅度（EVM _RMS）来估计其覆盖范围图 ）参数在整个实验室的36个空间分布的接收点处。5G NR毫微微小区以50MHz带宽和30kHz间隔的子载波工作，从而提高了104.8 Mbit / s的吞吐率，并根据3GPP Release 15建议对信号质量进行了分析。评估了视线（LOS）和NLOS（非LOS）传播情况，这意味着EVM _RMS从3.13％到19.4％的变化。QPSK（正交相移键控）和16-QAM（正交幅度调制）系统的覆盖率分别达到94％和89％，这表明其适用于部署在毫米波中运行的5G NR飞蜂窝。