| 摘要 |
PROBLEM TO BE SOLVED: To prevent deterioration of the system throughput, by reducing the possibility of occurrence of false recognition of the presence or absence of SRS transmission between a base station and a terminal or of the SRS resource.SOLUTION: In a terminal (200), a reception processing unit (203) detects the control information indicating whether or not the transmission of a sounding reference signal (SRS) is requested, a transmission signal formation unit (207) transmits an A-SRS, by the control in a transmission control unit (206) based on the control information. The transmission control unit (206) determines whether or not the SRS transmission is executed, based on the (SRS transmission execution rule) and the reception state of the trigger information. For example, the (SRS transmission execution rule) is to transmit the SRS according to the allocation control information including the trigger information indicating the transmission request detected at first, in an effective period.SELECTED DRAWING: Figure 4 |
