Sounding reference signal (SRS) transmissions in a shared RF spectrum band, alone or in conjunction with a dedicated RF spectrum band, may be transmitted using two or more uplink component carriers (CCs). A UE may identify that the two or more CCs are in a same timing advance group (TAG), and transmit a SRS transmission and a physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) transmission during a same uplink symbol. A UE may transmit a SRS based on a minimum configured power in the event that the UE is power limited during a SRS transmission symbol. A channel priority assigned to a CC carrying a SRS transmission in a shared RF spectrum band may be set to a higher channel priority than a channel priority for a similar transmission using a dedicated RF spectrum band.
