Patent ID: 8023900

Claim:
A mobile radio terminal establishing radio communications with a base station apparatus accommodated in a network, the mobile radio terminal comprising: a Wideband measuring unit which measures reception quality of a Wideband; a Subband measuring unit which measures reception quality of each of a plurality of Subbands included in the Wideband; a first determining unit which determines a Wideband report value within a preset first range, in accordance with the measurement result of the Wideband measuring unit; a second determining unit which determines a reference value having a preset first referential difference from the Wideband report value, and which determines a reference value having a second referential difference smaller than the first referential difference if the Wideband report value is a value in a preset upper limit domain; a third determining unit which determines an index value corresponding to a difference between the referential value and the Subband reception quality, within a preset second range; and a transmitting unit which transmits the Wideband report value and the index value to the base station apparatus.