Patent ID: 8873501

Claim:
A user device for a mobile communication system employing a single carrier scheme for uplink, an uplink system frequency band of the mobile communication system including a first resource block located at a low-frequency end of the uplink system frequency band, a second resource block located at a high-frequency end of the uplink system frequency band, and multiple resource blocks between the first resource block and the second resource block, the user device comprising: a mapping unit configured to map an uplink control channel to the first resource block or the second resource block; and a transmitting unit configured to transmit the mapped uplink control channel, wherein the mapping unit is configured to map an uplink data channel to at least one of the resource blocks between the first resource block and the second resource block, the transmitting unit is configured to also transmit the mapped uplink data channel, and when each subframe on a time axis is divided into two sub-periods, the mapping unit is configured to map the uplink control channel to the first resource block located at the low-frequency end of the uplink system frequency band in a first one of the two sub-periods and to map the uplink control channel to the second resource block located at the high-frequency end of the uplink system frequency band in a second one of the two sub-periods, and the mapping unit does not map the uplink data channel to the first resource block and the second resource block.