Patent ID: 8731558

Claim:
A mobile station configured to communicate with a radio base station, comprising: a parameter acquisition unit configured to acquire a parameter for discontinuous reception state and a parameter for continuous reception state from the radio base station; a measuring unit configured to measure a measurement result of radio qualities in a serving cell and a peripheral cell of the mobile station; a determining unit configured to determine whether or not to notify the measurement result; and a notification unit configured to notify the radio base station of the measurement result when the determining unit determines the measurement result should be transmitted, wherein the determining unit is configured to determine whether or not to notify the measurement result based on the radio qualities in the serving cell and the peripheral cell, measured by the measuring unit, and the parameter for discontinuous reception state, acquired by the parameter acquisition unit, when the mobile station is in a discontinuous reception state, and the determining unit is configured to determine whether or not to notify the measurement result based on the radio qualities in the serving cell and the peripheral cell, measured by the measuring unit, and the parameter for continuous reception state, acquired by the parameter acquisition unit when the mobile station is not in the discontinuous reception state, wherein the mobile station determining unit determines to notify a measurement result when a predetermined condition is satisfied continuously for a predetermined time period or longer, the parameter for discontinuous reception state and the parameter for continuous reception state each include a first parameter indicating the predetermined time period, a value of the first parameter included in the parameter for discontinuous reception state is longer than the value of the first parameter included in the parameter for continuous reception state and is also longer than a discontinuous reception cycle, and a value of hysteresis in the parameter for the discontinuous reception state is defined to be smaller than a value of hysteresis in the parameters for the continuous reception state.