Patent ID: 8571001

Claim:
A radio communication base station apparatus comprising: a grouping section that divides a plurality of resource blocks into a plurality of groups, wherein each of the plurality of groups includes one or more of the plurality of resource blocks; a storing section that stores a plurality of tables showing correspondences between each of the plurality of groups and the one or more of the plurality of resource blocks included in each of the plurality of groups and a changing order of the correspondences, wherein the changing order varies between the tables; a controlling section that switches a table to be used from among the plurality of tables and changes correspondences between the plurality of groups and the one or more of the plurality of resource blocks included in each of the plurality of groups over time based on the switched table; a scheduling section that carries out scheduling to assign a radio communication mobile station apparatus to a resource block included in one of the plurality of groups; and a transmission section that transmits a report of a scheduling result indicating the assigned resource block included in the one of the plurality of groups and a report of switching of the table, to the radio communication mobile station apparatus.