Mobile communication terminal, mobile communication system, base station and communication method

摘要

A mobile communication terminal (UE) comprises: a transmitting unit (213, 211) which transmits a signal via a radio resource allocated to the mobile communication terminal (UE) for the transmission of a prescribed control signal; and a signal selector unit (214) which, when upstream traffic occurs, selects a reservation request signal as the signal to be transmitted via the allocated radio resource wherein, when the mobile communication terminal (UE) is in a standby state, the reservation request signal is transmitted from the mobile communication terminal (UE) to the base station by using the radio resource allocated to the mobile communication terminal (UE) for the transmission of the prescribed control information.