CPC Class H04W

The present invention is to provide the mobile communication system which enables power consumption reduction for the mobile station with dual mode capability by unifying the location registration and paging processing for every mobile communication system. The mobile communication system is so arranged to perform location registration processing and paging processing for the mobile station by only one of radio communication systems. And the mobile station can access to any other radio communication systems.

A mobile terminal and controlling method thereof are disclosed, by which a touch sensitivity of a display unit can be improved. The present invention includes a display unit, a touch sensor configured to detect a touch input applied to the display unit by periodically waking up while the display unit is turned off, and a controller, if a preset user input is received, controlling a wakeup period of the touch sensor distributed in at least one partial region of the display unit to be decreased.