Patent ID: 8606280

Claim:
An apparatus for a base station in a wireless communication system, the base station comprising: a manager configured to manage a plurality of resources for each of a plurality of frequency allocations (FAs) by dividing the plurality of resources for each FA into a plurality of regions based on a maximum supportable error vector magnitude (EVM) in a frequency axis, wherein the EVM represents a magnitude of error due to radio frequency (RF) characteristic of a transmitter; and an allocator configured to allocate one or more resources of a region other than a first region, the first region having a smallest maximum supportable EVM among the plurality of regions, to a service to which a maximum modulation and coding scheme (MCS) level is not applied, and allocate resources of the region other than the first region to a terminal; and a controller device configured to cause the terminal to handover between FAs when informed by the allocator of insufficient resources to be allocated to the terminal.