Achieving adequate coverage with high gain antennas is key to realizing the full promise of the wide bandwidth available at centimeter/millimeter bands. We report extensive outdoor measurements at 28 GHz in suburban residential areas in New Jersey and Chile, with over 2000 links measured for the same-street link types [vegetation blocked line of sight (LOS)] from 13 streets and other-street link types [true non-LOS (NLOS)] from 7 streets, using a specialized narrowband channel sounder at ranges reaching 200 m. The measurements, applicable to fixed wireless access, involved a 55° transmit antenna placed on the exterior of a street-facing window and a 10° receive horn antenna spinning on top of a van mast at 3 m height, emulating a lamppost-mounted base station (BS). The measured path gain-distance dependence is well represented by power-law models, and azimuth gains at the base are degraded through scattering by more than 4.3 dB for 10% of links. It was found that, with 51 dBm effective isotropic radiated power (EIRP) at the BS and 11 dBi antenna at an outdoor- mounted terminal, 1 Gb/s downlink rate can be delivered up to 100 m from a BS deployed in the same street with 90% coverage guarantee.

中文翻译：

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28 GHz 下 90% 室外覆盖的郊区固定无线接入信道测量和模型

使用高增益天线实现足够的覆盖是实现厘米/毫米波段可用宽带宽的全部承诺的关键。我们报告了新泽西州和智利郊区居民区在 28 GHz 频率下的广泛室外测量结果，对来自 13 条街道和其他街道链接类型的相同街道链接类型 [植被遮挡视线 (LOS)] 进行了 2000 多个链接测量[真正的非 LOS (NLOS)] 来自 7 条街道，使用范围达到 200 m 的专用窄带通道测深仪。这些测量适用于固定无线接入，包括放置在面向街道的窗户外部的 55° 发射天线和旋转在 3 m 高的货车桅杆顶部的 10° 接收喇叭天线，模拟安装在灯柱上的底座站（BS）。测得的路径增益-距离依赖性可以用幂律模型很好地表示，对于 10% 的链路，基站的方位角增益通过散射降低 4.3 dB 以上。结果表明，在 BS 51 dBm 有效全向辐射功率 (EIRP) 和室外终端 11 dBi 天线的情况下，1 Gb/s 下行链路速率可以从部署在同一街道上的 BS 传送到最远 100 m具有 90% 的覆盖率保证。