| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mobile station apparatus, a base station apparatus, a wireless communication system, a wireless communication method, and an integrated circuit, that are capable of carrying out efficient communication between a base station apparatus and a mobile station apparatus, based on an A-SRS (Aperiodic Sounding Reference Signal) transmitted from the mobile station apparatus. <P>SOLUTION: A base station apparatus notifies a mobile station apparatus of an uplink grant including allocation information for frequency resource of a physical uplink common channel and a transmission instruction of a sounding reference signal. When the notified uplink grant includes the transmission instruction of the sounding reference signal A-SRS, the mobile station apparatus sets the resource of the sounding reference signal A-SRS, which includes a PUSCH (Physical Uplink Shared Channel) frequency resource, according to the information related to the allocation for resource of the physical uplink common channel, and transmits the sounding reference signal A-SRS. <P>COPYRIGHT: (C)2012,JPO&INPIT |
