User equipment, base station, and transmission power control method

A base station in a radio communication system including a plurality of the base stations and a terminal, the base station comprising:

• an acquisition unit that acquires information, which indicates that another base station is capable of applying both OFDM and DFT-s-OFDM in an uplink, or indicates that the other base station uses only OFDM in the uplink, from the other base station;
• and
• a control unit that changes a transmission power parameter, which is applied to transmission of an uplink signal by the terminal, between a case where both OFDM and DFT-s-OFDM are capable of being applied to the uplink by the other base station, and a case where only OFDM is used in the uplink by the other base station.