Patent ID: 7574211

Claim:
A mobile communication terminal for communicating a data with a first base station or a second base station, comprising: a first communication unit configured to perform the data communication with the first base station at a first communication rate; a second communication unit configured to perform the data communication with the second base station at a second communication rate higher than the first communication rate; a first control unit coupled to the first communication unit and the second communication unit, and configured to switch from the second base station to the first base station during a period in which the data communication with the second base station is performed; a second control unit coupled to the second communication unit, and configured to calculate a remaining communication time necessary to complete the data communication from a switching time point on the basis of a remaining amount of data which has not communicated yet, before switching the communication partner; and a display unit coupled to the second control unit, and configured to display the calculated remaining communication time.