Interference Analysis for Spectrum Sharing of Multiple Local 5G gNBs by Different Operators in a Building

Local 5G has been institutionalized in Japan as a regulation of non-public 5G (NPN). Dedicated frequency bands are assigned to Local 5G as licensed bands and separated from public carriers' spectrum. As Local 5G deploys more widely, multiple Local 5G gNBs may be installed by different operators in the same building, and they may interfere with each other. In this paper, we estimate the interference between Local 5G gNBs of multiple operators for spectrum sharing in a building, and discuss the operation of proximity Local 5G gNBs.