Patent ID: 8855646

Claim:
A user equipment configured to communicate with a base station device, the equipment comprising: a connection state processor configured to determine a frequency to be measured in a gap period, to measure, in a connected state, communication quality in each of cells respectively belonging to two or more layers, on the basis of a first priority, to report the measurement result to the base station device, and to perform handover processing according to an instruction from the base station device, the first priority notified by a first control signal notified from the base station device, the connected state being where a radio link between the user equipment and the base station device is established; and a stand-by state processor configured to measure, in a stand-by state, communication quality in each of cells respectively belonging to two or more layers on the basis of a second priority, and to determine on the basis of the measurement result a cell for performing a stand-by, the second priority notified by a second control signal notified from the base station device, wherein the first priority and the second priority indicate a priority of each layer, the connected state is an RRC_Connected state, and the stand-by state is an Idle state, the first priority is discarded when the user equipment transitions from the RRC_Connected state to the Idle state, and the second priority is discarded when the user equipment transitions from the Idle state to the RRC_Connected state, wherein the connection state processor transmits the measurement result as needed to the base station device as soon as conditions for transmitting the measurement result are met even when measurements of all the layers are not finished.