| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile communication system, a base station device, a mobile station device, a communication method and an integrated circuit, capable of efficiently transmitting HARQ-ACK and/or channel status information.SOLUTION: The base station device transmits to the mobile station device a first parameter related to the simultaneous transmission of an HARQ-ACK and channel status information, and a second parameter related to the simultaneous transmission of the HARQ-ACK and the channel status information. The mobile station device, when transmitting the HARQ-ACK in response to the transmission of one physical downlink shared channel in a primary cell only, transmits the HARQ-ACK and/or the channel status information according to the first parameter, whereas when transmitting the HARQ-ACK in response to the transmission of one physical downlink shared channel in a secondary cell, transmits the HARQ-ACK and/or the channel status information according to the second parameter.SELECTED DRAWING: Figure 6 |
