Patent ID: 8543102

Claim:
A wireless base station apparatus performing wireless communication with at least one mobile station apparatus, the wireless base station apparatus comprising: a transmitter configured to transmit data to the mobile station apparatus; a receiver configured to receive a delivery result for the data from the mobile station apparatus; and a processor configured to determine whether reception processing through a first channel is performed or parallel reception processing through the first channel and a second channel is performed on the basis of a radio line quality between the wireless base station apparatus and the mobile station apparatus or an amount of processing in the receiver if the transmitter transmits a permission notification to the mobile station apparatus permitting a transmission through the first channel, wherein the receiver performs the reception processing in accordance with a result of the determination to receive the delivery result transmitted through the first channel or the second channel, and wherein the receiver acquires the delivery result by the reception processing through the second channel if the reception processing through the first channel and the second channel is performed and a signal transmitted through the first channel is not received, and acquires the delivery result by the reception processing through the first channel if the parallel reception processing through the first channel and the second channel is performed and a signal transmitted through the first channel is received.