FIG. 16 is a conceptual data flow diagram 1600 illustrating the data flow between different means/components in an exemplary apparatus 1602. The apparatus may be a UE. The apparatus includes a reception component 1604 that receives downlink communication from a base station, e.g., eNB 1650, gNB, etc. Such downlink communication may include configuration information such as a CA configuration, instructions regarding transmitting SRS, and/or other downlink transmissions. The apparatus includes a transmission component 1606 that transmits uplink communication to eNB 1650. The uplink communication may include an SRS, capabilities of the UE, and/or other uplink transmissions. The apparatus includes a CA configuration component 1608 that receives a CA configuration for a first CC and a second CC, an uplink component 1610 that determines to transmit an uplink transmission, e.g., on the second CC, and a downlink component 1612 that determines to receive a downlink transmission from eNB 1650 on the second CC. The apparatus may include an SRS component 1614 that determines to transmit an SRS on an uplink portion of the first CC, the apparatus being configured for downlink communication on the first CC. The apparatus includes a collision detection component 1616 that determines that a transmission of an SRS in an uplink portion of the first CC would at least partially collide with an uplink transmission or reception of a downlink transmission on a second CC. The apparatus includes an adjustment component 1618 that determines to adjust at least one of the uplink transmission, the SRS transmission, or reception of the downlink transmission based on the determination of the collision. Based on the determination made by the adjustment component 1618, the transmission component transmits the uplink transmission on the second CC and/or transmits the SRS on the first CC, and/or the reception component receives the downlink transmission on the second CC. The apparatus may comprise a UE capability component 1620 configured to transmit a capability of the UE to eNB 1635. In response, the UE may receive an indication or instructions from the eNB regarding the transmission of the SRS, regarding switching, etc.