The base station device, being parameter alteration possible mobile station device choice manner, and

摘要

PPROBLEM TO BE SOLVED: To provide a base station device capable of selecting a mobile station device whose parameters are changed so that even when the parameter (modulation class, transmitted electric power, etc.) related to a controlled variable (transmitted electric power etc.) with which the degree of influences of a radio wave related to radio communication between the base station device and one mobile station device on radio waves related to radio communication with other mobile stations as an interference radio wave can be varied are changed, the change do not cause a disconnection of the radio communication with the other mobile station devices and other influences, and to provide a parameter changeable mobile station device selecting method and a program. PSOLUTION: The base station device 20 includes a spatial correlation value calculation section 56 which acquires spatial cross-correlation value information representing the degree of influence of a radio wave related to radio communication that each mobile station device 30 performs on a radio wave related to radio communication of other mobile station devices as an interference wave, and a modulation system control section 54 which selects a mobile station device which is changeable in parameter related to a controlled variable with which the degree of influence of the radio wave related to the radio communication of the mobile station device 30 on radio waves of radio communication of the other mobile station device 30 can be changed. PCOPYRIGHT: (C)2007,JPO&INPIT