A communication control method used in a mobile communication system supporting immediate MDT (Minimization of Drive Test) includes a user terminal in a radio resource control (RRC) connected state in a cell of the base station receiving an instruction from a base station, acquiring, in the RRC connected state, location information indicating a location of the user terminal based on the instruction from the base station, and measuring an uplink packet delay of uplink communication with the base station. The radio access bearers of the user terminal are associated with Quality of Service (QoS) characteristics to perform QoS control. The user terminal in the RRC connected state compares the measured uplink packet delay with a packet delay threshold value and determines whether to transmit a report to the base station based on result of the comparison. The report indicates the measured uplink packet delay.