Patent ID: 8195180

Claim:
A base station apparatus in a mobile communications system, comprising: a measuring unit which receives a reference signal from a user apparatus and measures received quality for each frequency resource block; a unit which provides a reference metric from the received quality; a modifying unit which modifies the reference metric with at least first and second parameters, and provide the modified metric; a scheduler which compares modified metrics of respective frequency resource blocks and provides a radio resource allocation plan; and a unit which reports, to the user apparatus, control information which indicates the allocation plan, wherein, when the radio resource allocation plan is provided for a certain sub-frame, if the user apparatus belongs to a certain group distinguished with a path loss, a value of the first parameter that is used for the user apparatus for a certain frequency resource block varies depending on whether the frequency resource block was allocated to the user apparatus in a preceding sub-frame, and, if the user apparatus belongs to a certain group distinguished with a path loss, a value of the second parameter used for the user apparatus is arranged to take a first value for a predetermined first frequency resource block and a second value for a predetermined second frequency resource block.