| 摘要 |
In a mobile communication system, comprising: a user terminal that performs communication with a base station and Device to Device (D2D) communication, the user terminal transmits a sounding reference signal to the base station. When at least a part of a first radio resource assigned to transmission of the sounding reference signal overlaps a second radio resource assigned to the D2D communication, the user terminal stops transmitting the sounding reference signal in the first radio resource. |
