1. A terminal comprising:a transmitter that performs transmission in a first cell group (CG) and a second CG; and
a processor that,
in a first case when the transmitter reports terminal capability information indicating that the terminal is capable of sharing transmission power dynamically and if transmission in the first CG overlaps in time with transmission in the second CG, reduces transmission power of the second CG so that total transmission power of the transmission in the first CG and the transmission in the second CG does not exceed maximum allowable power, and
in a second case when the transmitter does not report the terminal capability information, power is allocated semi-statically in advance for the first CG and the second CG and the processor does not perform the transmission in the second CG at a timing when the transmission in the second CG overlaps in time with the transmission in the first CG,
wherein the transmitter reports the terminal capability information to at least one of a first base station of the first CG and a second base station of the second CG, and communication with the first base station and the second base station is carried out according to the first case or the second case based on the reported terminal capability information.