| 摘要 |
<p>A mobile communication terminal apparatus that can perform smooth communications for each of a plurality of communication systems having different frequency bands and that exhibits a reduced power consumption. In the mobile communication terminal apparatus (100), a control part (170) establishes, based on the remaining quantity of a battery (195) and 3G, S3G and 4G reception status information, reception status determination periods for one or two of 3G, S3G and 4G data reception processing parts (140,150,160) and uses the established determination periods to control the one or two data reception processing parts to determine the reception statuses. A reception status information comparing part (174) uses reception status information indicative of the determined reception statuses to compare in magnitude the reception powers in the 3G, S3G and 4G communication systems. An optimum system selection control part (176) selects, based on a comparison result of the reception status information comparing part (174), one of the 3G, S3G and 4G communication systems for which the reception status is to be determined. The optimum system selection control part (176) then establishes a determination period for one of the 3G, S3G and 4G data reception processing parts corresponding to the selected communication system. The control part (170) controls the data reception processing part, which corresponds to the communication system selected by the optimum system selection control part (176), to determine the reception status.</p> |
