摘要
The millimeter-wave frequency band(30~300 GHz)has received significant attention.Millimeter-wave frequencies have been used for backhaul,cell communication,and other high speed communication.With the advent of 5G communication,millimeter-wave frequencies such as 60-GHz band have been attracting attention as possible candidate for next-generation wireless networks.The traditional application for 60-GHz band is point-to-point communication.Some typical scenarios have been cited in a recent 5G white paper.There exist some traditional channel models for 3G and 4G communication.However,5G has a new channel model(the outdoor-to indoor channel model,or O2I)that has not been clearly studied.Some conventional channel measurements have been conducted for this new band.Two measurement systems in the 60-GHz band for penetration loss and small-scale measurement for different scenarios are presented.By analyzing our measurement data,we can prove that the O2I channel does not generate new paths and only add some material penetration loss.
