论文标题
设备热性能对5G mmwave通信系统的影响
Impact of Device Thermal Performance on 5G mmWave Communication Systems
论文作者
论文摘要
据报道，5G毫米波（MMWAVE）细胞网络通过速度测试提供了1-2 Gbps的下行链接吞吐量。但是，这些速度测试仅捕获几秒钟的吞吐量，并且在几分钟内不能代表持续的吞吐量。我们报告了迈阿密，芝加哥和旧金山三个城市持续吞吐量的首次测量，当时，由于手机的皮肤温度升高，当它连接到部署的5G MMWAVE基地（BS）时，我们会观察到吞吐量的推力。手机和BS之间的无线电资源控制（RRC）消息表示，汇总的MMWave通道数量从4到1减少，然后将开关转换为4G。当手机加热时，我们用红外图像证实了这些测量。因此，mmwave吞吐量将不受网络特征而不是设备热管理的限制。
5G millimeter wave (mmWave) cellular networks have been reported to deliver 1-2 Gbps downlink throughput, via speed-tests. However, these speed-tests capture only a few seconds of throughput and are not representative of sustained throughput over several minutes. We report the first measurements of sustained throughput in three cities, Miami, Chicago, and San Francisco, where we observe throughput throttling due to rising skin temperature of the phone when it is connected to a deployed 5G mmWave base-station (BS). Radio Resource Control (RRC) messaging between the phone and the BS indicates the reduction in the number of aggregated mmWave channels from 4 to 1 followed by a switch to 4G. We corroborate these measurements with infra-red images as the phone heats up. Thus, mmWave throughput will be limited not by network characteristics but by device thermal management.
