A radio terminal, which is operative to perform a measurement on the basis of a measurement condition designated by a radio network and to report the result of the measurement, comprises: a position-determination precision calculating means for calculating a position-determination precision of the radio terminal; a required position-determination precision holding means for holding a required position-determination precision related to a condition of position-determination precision; and a measurement reporting control means for comparing the required position-determination precision with the calculated position-determination precision and for controlling the execution of at least one of the radio terminal's measurement and the radio terminal's reporting of the measurement result to the radio network.