Estimation of Outdoor to Indoor Loss Variation Pattern within 5G Spectrum and Loss Model Comparison

Fifth-generation (5G) introduces the use of millimeter waves (mmWave) in cellular technology, and thus poses a great challenge in proper radio coverage. One of the difficulties in high-frequency coverage is the outdoor to indoor (O2I) penetration loss for indoor users. An estimation in O2I penetration losses can help operators decide to ensure proper usage of available radio resources in the range of 5G. This paper presents an estimation of the variation pattern of penetration losses with varying frequencies, within 5G supported range, for different building exterior conditions. For the purposes of simulation two simulators have been used, mainly NYUSIM and a MATLAB based simulator developed using 3GPP TR 38.901. This paper also compares the simulation results from these two simulators.