Study on extension to higher frequency band of 3GPP Outdoor-to-Indoor path loss model

Recently, mobile communication system for the 5th generation (5G) has been extensively investigated to satisfy the need for high-speed and high-capacity communication. In order to realize the higher and larger data communication, one of the approaches is to utilize high frequencies such as high SHF (above 6 GHz) and EHF (30-100 GHz) [1]. These frequency bands are expected to be applied for outdoor or indoor small cell; hence it is critically important to investigate the characteristics of propagation and model it. Additionally, characteristics of `Outdoor-to-Indoor (O2I) propagation' and its modelling are necessary from system design point of view. This report presents extensive investigation for "Extension of 3GPP model below 6 GHz [2]".