Patent ID: 7801102

Claim:
A mobile station apparatus that simultaneously communicates with a plurality of base station apparatuses including one primary cell base station apparatus that transmits an absolute transmission rate command, and at least one non-primary cell base station apparatus that transmits a relative transmission rate command, the mobile station apparatus comprising: a determining section that determines whether or not a load at the non-primary cell base station apparatus is equal to or greater than a predetermined level; and a deciding section that decides an uplink transmission rate according to the relative transmission rate command, and not the absolute transmission rate command, when the load at the non-primary cell base station apparatus is equal to or greater than the predetermined level, wherein: the deciding section comprises: a generating section that generates other cell load information that prohibits transmission of the absolute transmission rate command by the primary cell base station apparatus when the load at the non-primary cell base station apparatus is equal to or greater than the predetermined level; a transmission section that transmits the generated other cell load information to the primary cell base station apparatus; and an acquiring section that acquires only relative transmission rate commands from the plurality of base station apparatuses when the load at the non-primary cell base station apparatus is equal to or greater than the predetermined level.