Wireless Transmission Device, Wireless Reception Device, and Bandwidth Allocation Method for Setting a Band Where Other Bands Indicated by Continuous Band Allocation Information Do Not Overlap

1. A radio transmission apparatus comprising: a receiver configured to receive a plurality of allocation information, each of the plurality of allocation information indicating allocation of continuous bands each comprised of continuous resource blocks divided into at least one resource block group, the continuous bands including an overlapping portion; a transmission band setting unit configured to set a transmission band based on the plurality of allocation information, the transmission band being a band including the entirety of the continuous bands except the overlapping portion between said continuous bands indicated by the plurality of allocation information, respectively; and a transmitter configured to transmit transmission data on the set transmission band, wherein boundaries for dividing resource blocks into resource block groups differ between the plurality of allocation information.

2. The radio transmission apparatus according to claim 1 , wherein the transmission band setting unit sets, as the transmission band, a number of clusters less than a number of allocation information using allocation information indicating allocation of a band beyond one end of a system band.

3. The radio transmission apparatus according to claim 1 , wherein the transmission band setting unit sets the transmission bandbased on offset information indicating whether or not the boundaries are different.

4. The radio transmission apparatus according to claim 3 , wherein information to indicate whether or not continuous bands indicated by the plurality of allocation information overlap is used as the offset information.

5. The radio transmission apparatus according to claim 4 , wherein the boundaries are different when the continuous bands overlap, and the boundaries are the same when the continuous bands do not overlap.

6. The radio transmission apparatus according to claim 1 , wherein, when an allocation bandwidth indicatable by the allocation information is limited to equal to or less than a system bandwidth, a band not indicatable by the allocation information is set to a central area of a system band, and continuous bands indicated by each of the allocation information are cyclically shifted in the system band.

7. A radio reception apparatus comprising: a band setting unit configured to set a transmission band, the transmission band being a band including the entirety of continuous bands except an overlapping portion that exists between the continuous bands, which are indicated by a plurality of allocation information, respectively, each of the continuous bands being comprised of continuous resource blocks divided into at least one resource block group; a transmitter configured to transmit the plurality of allocation information to a communication counterpart; and a receiver configured to receive signals, which are transmitted from the communication counterpart on the transmission band based on the plurality of allocation information, wherein boundaries for dividing resource blocks into resource block groups differ between the plurality of allocation information.

8. A band allocation method performed by a radio communication apparatus comprising: setting a transmission band, the transmission band being a band including the entirety of continuous bands except an overlapping portion that exists between the continuous bands, which are indicated by a plurality of allocation information, respectively, and which are comprised of continuous resource blocks divided into resource block groups; transmitting the plurality of allocation information to a communication counterpart; and receiving signals, which are transmitted from the communication counterpart on the transmission band based on the plurality of allocation information, wherein boundaries for dividing resource blocks into resource block groups differ between the plurality of allocation information.