Patent ID: 8498347

Claim:
A user apparatus for use in a mobile communication system in which a single carrier scheme is adopted in uplink and a system band is divided by a plurality of resource blocks, the user apparatus comprising: a mapping unit configured to map, to predetermined resource blocks, a data channel of the user apparatus, a first pilot channel that is not related to the data channel of the user apparatus, a second pilot channel that is related to the data channel of the user apparatus, and a control channel of the user apparatus; and a transmission unit configured to transmit the data channel of the user apparatus, the first pilot channel, the second pilot channel and the control channel of the user apparatus that are mapped by the mapping unit, wherein the mapping unit maps the first pilot channel to a plurality of resource blocks, and maps the second pilot channel to a resource block that is a same resource block as a resource block to which the data channel of the user apparatus is mapped, and wherein the mapping unit maps the control channel of the user apparatus to the resource block to which the data channel of the user apparatus is mapped when the control channel of the user apparatus and the data channel of the user apparatus are mapped to a same subframe, and the mapping unit maps the control channel of the user apparatus to distributed resource blocks when the control channel of the user apparatus and the data channel of the user apparatus are not mapped to the same subframe.