Scheduling apparatus and scheduling method

摘要

A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus (100), a scheduling section (113) allocates frequency resources to frequency allocation target terminals based on set frequency allocation units, and a frequency allocation parameter setting section (112) adjusts the set frequency allocation units set in the scheduling section (113) based on cluster numbers. Due to this, in each cluster number, frequency resources can be allocated based on the most suitable frequency allocation units with respect to the signaling bit number. As a result, the amount of signaling for frequency resource allocation information can be reduced. Further, system throughput can be maintained by making the cluster number, which is a parameter having little effect on system throughput, a setting parameter for frequency allocation units.

主权项

1. A communication apparatus, comprising:
a receiver which, in operation, receives control information that includes cluster information that specifies a number of clusters which is a number of frequency resources allocated to a user equipment, each cluster being located on a separate position from other cluster(s) on a frequency axis; and a mapper which, in operation, sets a resource block group size for allocating one or more frequency resources according to both a system bandwidth and the number of clusters, wherein the resource block group size is a number of resource blocks included in a resource block group, each of the clusters comprising one or more resource block groups of the resource group size, and maps data to the one or more frequency resources, in one or more units of the resource block size.