Patent ID: 8422437

Claim:
A radio communication apparatus transmitting signals to a first to a Nth (N: arbitrary natural number) terminal units, the apparatus comprising: a resource assignment unit assigning resources to the first to Nth terminal units based on channel changes extracted from a first to a Nth channel information corresponding to the first to Nth terminal units, respectively; and a multiplex signal generating unit multiplexing a pilot signal and transmission data and generating a transmission signal based on said assignment of resources determined by the resource assignment unit, the resource assignment unit assigning the resources so that a resource assigned to one of the first to Nth terminal units is nearer to a multiplex position of the pilot signal than a resource assigned to another of the first to Nth terminal units if a channel change on the one of the first to Nth terminal units is larger than a channel change on the another of the first to Nth terminal units, and assigning the resources so that a resource assigned to one of the first to Nth terminal units is farther from a multiplex position of the pilot signal than a resource assigned to another of the first to Nth terminal units if a channel change on the one of the first to Nth terminal units is smaller than a channel change on the another of the first to Nth terminal units.