Patent ID: 8325593

Claim:
A user device transmitting at least an uplink control channel using a single carrier scheme, comprising: a channel quality indicator generating unit configured to generate a channel quality indicator indicating a downlink radio propagation condition; and a transmitting unit configured to transmit the uplink control channel including the channel quality indicator using a dedicated frequency band when no radio resource is allocated for transmission of an uplink data channel, wherein the transmitting unit is configured to transmit a predetermined number of unit blocks in each slot period, when a system bandwidth is greater than a predetermined value, a first orthogonal multiplexing method is used wherein: a first orthogonal sequence is represented by a first set of factors multiplied by a plurality of unit blocks, each unit block belonging to a same slot and containing same information, and at least a part of the channel quality indicator is represented by a predetermined number of symbol elements constituting each of the unit blocks, and when the system bandwidth is less than or equal to the predetermined value, a second orthogonal multiplexing method is used wherein: a second orthogonal sequence having a predetermined length multiplied by a factor from a second set of factors is represented by the predetermined number of symbol elements constituting each of a plurality of unit blocks, and at least a part of the channel quality indicator is represented by a second set of factors multiplied by a plurality of unit blocks.