A Comparative Measurement Study of Commercial 5G mmWave Deployments
A Comparative Measurement Study of Commercial 5G mmWave Deployments
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DOI：
10.1109/infocom48880.2022.9796693
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发表时间：
2022-05
期刊：
影响因子：
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通讯作者：
Arvind Narayanan;M. I. Rochman;A.E.A. Hassan;Bariq S. Firmansyah;V. Sathya;Monisha Ghosh;Feng Qian-Feng-Q
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作者：
Arvind Narayanan;M. I. Rochman;A.E.A. Hassan;Bariq S. Firmansyah;V. Sathya;Monisha Ghosh;Feng Qian-Feng-Q
5G-NR开始在美国和世界各地的MMWave频率中广泛部署。由于MMWave信号传播的方向性，改善此类部署的性能在很大程度上依赖于光束管理和部署配置。我们在两个不同的环境中由两个主要的5G运营商对MMWave 5G部署进行了详细测量：一个不同的环境：一个带有棒球公园（BP）的开放式田野和一个基于智能手机的市区城市峡谷地区（DT），用于收集详细的工具跨多个层（PHY，MAC及向上）的测量值，例如信号强度，梁开关时间和每个梁的吞吐量等光束特异性指标。我们的测量分析表明，两个部署的参数在许多方面不同：所使用的光束数，汇总的通道数和部署密度，这些密度反映了吞吐量性能。我们的测量驱动的传播分析表明，较窄的光束比较宽的光束经历较低的路径下降指数，该梁与多达八个梁的最多八个频率通道相结合，可以在距离大于100m的距离上提供1.2 Gbps的峰值吞吐量。
5G-NR is beginning to be widely deployed in the mmWave frequencies in urban areas in the US and around the world. Due to the directional nature of mmWave signal propagation, improving performance of such deployments heavily relies on beam management and deployment configurations. We perform detailed measurements of mmWave 5G deployments by two major commercial 5G operators in the US in two diverse environments: an open field with a baseball park (BP) and a downtown urban canyon region (DT), using smartphone-based tools that collect detailed measurements across several layers (PHY, MAC and up) such as beam-specific metrics like signal strength, beam switch times, and throughput per beam. Our measurement analysis shows that the parameters of the two deployments differ in a number of aspects: number of beams used, number of channels aggregated, and density of deployments, which reflect on the throughput performance. Our measurement-driven propagation analysis demonstrates that narrower beams experience a lower path-loss exponent than wider beams, which combined with up to eight frequency channels aggregated on up to eight beams can deliver a peak throughput of 1.2 Gbps at distances greater than 100m.