| 摘要 |
To perform efficiently transmission of a first reference signal and transmission of a second reference signal for channel estimation without deteriorating a channel estimation accuracy, and at the same time, perform efficiently transmission of the first reference signal and transmission of the second reference signal for channel estimation and transmission on a physical uplink control channel without deteriorating a communication quality. A mobile station apparatus, in the case where a transmission of the first reference signal and a transmission of the second reference signal have happened to coincide in the same timing (Step S101, YES), performs transmission of the first reference signal (Step S102), and in contrast, in the case where a transmission of the first reference signal and a transmission of the second reference signal have happened to coincide in different component carriers in the same timing (Step S101, NO), performs a transmission of the first reference signal and a transmission of the second reference signal simultaneously (Step S103). |
