RADIO BASE STATION APPARATUS, MOBILE TERMINAL APPARATUS AND TRANSMISSION POWER CONTROL METHOD

摘要

To provide a radio base station apparatus, mobile terminal apparatus and transmission power control method for enabling conventional inter-cell interference reduction techniques and ULCoMP to be used together, a radio base station apparatus of the invention is characterized by having a ULCoMP processing section (2085) that applies ULCoMP to a mobile terminal (1001) when a difference (PL2−PL1) between a pass loss PL1 between the mobile terminal (1001) and a base station apparatus (2001) connected to the mobile terminal (1001) and a pass loss PL2 between the mobile terminal (1001) and a base station apparatus (2002) with the lowest pass loss for the mobile terminal (1001) is within a predetermined range, and a transmission power control section (2089) that performs transmission power control for application of ULCoMP when the ULCoMP is applied, while performing transmission power control for non-application of the ULCoMP when the ULCoMP is not applied.