A mobile terminal performs a random access procedure with a network that includes transmitting to the network a random access preamble directly allocated to the mobile terminal by the network and receiving a random access response from the network in response to transmission of the random access preamble. The terminal performs a discontinuous reception (DRX) operation that controls how the mobile terminal monitors a physical downlink control channel (PDCCH). The DRX operation employs an active time in which the mobile terminal monitors the PDCCH, and the active time includes a time while: (i) an on-duration timer or a DRX Inactivity timer or a DRX retransmission timer or a contention resolution timer is operating, (ii) a scheduling request procedure is pending, (iii) an uplink grant for a retransmission can occur, or (iv) the PDCCH indicating a new transmission addressed to a Cell-Radio Network Temporary Identifier (C-RNTI) of the mobile terminal has not yet been received after successful reception of the random access response.