A mobile device comprising: an acceleration sensor configured to detect an acceleration value; a communication unit configured to communicate with a base station; and a controller configured to control a power supply state of the communication unit based on a power supply setting, characterized in that the controller is further configured to set the power supply setting to a first power supply mode that maintains the power supply state of the communication unit in an on-state, a second power supply mode that maintains the power supply state of the communication unit in an off-state, or a third power supply mode that controls the power supply state of the communication unit according to an acceleration state determined based on the acceleration value, wherein the acceleration state comprises a stop state and a plurality of moving states; upon determining that the mobile device has shifted from a first acceleration state which is the stop state, through a second acceleration state which is one of the moving states, to the first acceleration state once again while maintaining the power supply setting in the third power supply mode, the controller is configured to change the power supply state of the communication unit from a first power supply state, which is the on-state, to a second power supply state, which is the off-state, when the mobile device shifts from the first acceleration state to the second acceleration state and the controller is configured to return the power supply state of the communication unit from the second power supply state to the first power supply state when the mobile device shifts from the second acceleration state to the first acceleration state once again. an acceleration sensor configured to detect an acceleration value; a communication unit configured to communicate with a base station; and a controller configured to control a power supply state of the communication unit based on a power supply setting, characterized in that the controller is further configured to set the power supply setting to a first power supply mode that maintains the power supply state of the communication unit in an on-state, a second power supply mode that maintains the power supply state of the communication unit in an off-state, or a third power supply mode that controls the power supply state of the communication unit according to an acceleration state determined based on the acceleration value, wherein the acceleration state comprises a stop state and a plurality of moving states; upon determining that the mobile device has shifted from a first acceleration state which is the stop state, through a second acceleration state which is one of the moving states, to the first acceleration state once again while maintaining the power supply setting in the third power supply mode, the controller is configured to change the power supply state of the communication unit from a first power supply state, which is the on-state, to a second power supply state, which is the off-state, when the mobile device shifts from the first acceleration state to the second acceleration state and the controller is configured to return the power supply state of the communication unit from the second power supply state to the first power supply state when the mobile device shifts from the second acceleration state to the first acceleration state once again.