Distance Criteria for Interference Protection inuse of Frequency Band 28 GHz for Private 5G System

This paper presents the studying of distance criteria between two private 5G systems on 28 GHz frequency band, that limits the level of frequency interference below 5 percent. The Monte Carlo simulation method is applied to simulate in SEAMCAT program which the parameters of transmitter, receiver, and pathloss model for rural and urban environment can be set. There are two simulation cases which are the case of two private 5G system near each other in horizontal line and three private 5G system group as a triangle shape. From simulation results, the interference criteria of distance between two systems in horizontal line are 1500 meters for rural areas and 900 meters for urban areas. Finally, the criteria of angle (distance) between three systems in triangle group are 77.5 degree (3465 meter) for rural areas and 70 degree (1315 meters) for urban areas.