5Gophers v1.0 (Commercial 5G Network Performance)

We conduct to our knowledge a first measurement study of commercial 5G performance on smartphones by closely examining 5G networks of three carriers (two mmWave carriers, one mid-band 5G carrier) in three U.S. cities. We conduct extensive field tests on 5G performance in diverse urban environments. We systematically analyze the handoff mechanisms in 5G and their impact on network performance, and explore the feasibility of using location and possibly other environmental information to predict the network performance. We also study the app performance (web browsing, HTTP download, and volumetric video streaming) over 5G. Our study consumes more than 15 TB of data. Conducted when 5G just made its debut, it provides a “baseline” for studying how 5G performance evolves, and identifies key research directions on improving 5G users’ experience in a cross-layer manner.

本研究在知识范围内，首次对智能手机上商用5G性能进行了测量研究。通过对美国三个城市的三个运营商（两个毫米波运营商和一个中频段5G运营商）的5G网络进行细致考察，我们进行了广泛的实地测试，以评估不同城市环境中的5G性能。我们系统地分析了5G中的切换机制及其对网络性能的影响，并探讨了利用位置信息以及其他可能的环镜信息预测网络性能的可行性。此外，我们还研究了5G上的应用程序性能（包括网页浏览、HTTP下载和体积视频流）。本研究消耗了超过15TB的数据。在5G刚刚问世之际进行，为研究5G性能的演变提供了“基准”，并确定了跨层提升5G用户体验的关键研究方向。