A full-duplex transmission control method, user equipment, and a base station, where the full-duplex transmission control method includes obtaining, by user equipment, a first time resource unit, correcting, by the user equipment according to a power offset obtained by the user equipment, first uplink transmission power used for half-duplex transmission to obtain second uplink transmission power used for the full-duplex transmission when the user equipment obtains, from the first time resource unit, included scheduling grant information indicating full-duplex transmission, and transmitting, by the user equipment, an uplink signal in the first time resource unit or a second time resource unit according to the second uplink transmission power, where the second time resource unit is a time resource unit that is after the first time resource unit in terms of time.