A mobile communication system comprising: a base station apparatus; and a mobile station apparatus configured to transmit, to a base station apparatus, Hybrid Automatic Repeat Request control information for one or a plurality of downlink transport blocks, wherein the base station apparatus is configured to: transmit using a higher layer signal, to the mobile station apparatus, first information used for configuring a physical uplink control channel resource, transmit using the higher layer signal, to the mobile station apparatus, second information used for configuring a plurality of physical uplink control channel resources. transmit using a physical downlink control channel, to the mobile station apparatus, third information used for determining one physical uplink control channel resource from among the plurality of physical uplink control channel resources. receive in a sub-frame, from the mobile station apparatus, a scheduling request using the physical uplink control channel resource configured based on the first information, and receive in a sub-frame, from the mobile station apparatus, the Hybrid Automatic Repeat Request control information using the one physical uplink control channel resource determined based on the second information and the third information, wherein in a case that a reception of the Hybrid Automatic Repeat Request control information using the one physical uplink control channel resource determined based on the second information and the third information coincides with a sub-frame for a reception of the scheduling request, the base station apparatus is configured to receive from the mobile station apparatus, the Hybrid Automatic Repeat Request control information and the scheduling request using the one physical uplink control channel resource determined based on the second information and the third information. a base station apparatus; and a mobile station apparatus configured to transmit, to a base station apparatus, Hybrid Automatic Repeat Request control information for one or a plurality of downlink transport blocks, wherein the base station apparatus is configured to: transmit using a higher layer signal, to the mobile station apparatus, first information used for configuring a physical uplink control channel resource, transmit using the higher layer signal, to the mobile station apparatus, second information used for configuring a plurality of physical uplink control channel resources. transmit using a physical downlink control channel, to the mobile station apparatus, third information used for determining one physical uplink control channel resource from among the plurality of physical uplink control channel resources. receive in a sub-frame, from the mobile station apparatus, a scheduling request using the physical uplink control channel resource configured based on the first information, and receive in a sub-frame, from the mobile station apparatus, the Hybrid Automatic Repeat Request control information using the one physical uplink control channel resource determined based on the second information and the third information, wherein transmit using a higher layer signal, to the mobile station apparatus, first information used for configuring a physical uplink control channel resource, transmit using the higher layer signal, to the mobile station apparatus, second information used for configuring a plurality of physical uplink control channel resources. transmit using a physical downlink control channel, to the mobile station apparatus, third information used for determining one physical uplink control channel resource from among the plurality of physical uplink control channel resources. receive in a sub-frame, from the mobile station apparatus, a scheduling request using the physical uplink control channel resource configured based on the first information, and receive in a sub-frame, from the mobile station apparatus, the Hybrid Automatic Repeat Request control information using the one physical uplink control channel resource determined based on the second information and the third information, wherein in a case that a reception of the Hybrid Automatic Repeat Request control information using the one physical uplink control channel resource determined based on the second information and the third information coincides with a sub-frame for a reception of the scheduling request, the base station apparatus is configured to receive from the mobile station apparatus, the Hybrid Automatic Repeat Request control information and the scheduling request using the one physical uplink control channel resource determined based on the second information and the third information.