A user terminal, a base station, and method include a user terminal performing D2D communication under management of a base station, the D2D communication indicating direct device to device communication including transmitting data to one or more D2D communication destinations in the D2D communication and transmitting a D2D buffer status report to the base station. The user terminal transmits to the base station a D2D buffer status report indicating an amount of non-transmitted data in the D2D communication and a plurality of identifiers corresponding to the one or more D2D communication destinations. The plurality of identifiers corresponding to the one or more D2D communication destinations does not include the identifier of the base station to which the D2D buffer status report is transmitted.