A transmission device capable of reducing the information amount of channel quality indicators (CQIs) without deteriorating throughput. In the device, an upper bit transmission control unit (104) sets the transmission intervals between upper bits of the CQIs inputted from an S/P conversion unit (103) to be longer than the transmission intervals between lower bits of the CQIs, and a lower bit transmission control unit (105) sets the transmission intervals between the lower bits of the CQIs inputted from the S/P conversion unit (103). Then, a transmission unit (107) transmits the CQI on the basis of the transmission intervals respectively set by the upper bit transmission control unit (104) and the lower bit transmission control unit (105).