A UE communication device is provided having a transmitter architecture that transmits SRS transmissions and PUSCH transmissions. A reference mode chosen from a LPM, an MPM and an HPM is selected based on a present power mode of the SRS transmission or based on a predicted power mode that the PUSCH transmission following the present SRS transmission will likely operate in. The transmitter architecture has an exemplary extended switching point structure allowing the RPD between the SRS transmission used for pre-quarter selection and the subsequent PUSCH transmission applying the pre-quarter to be minimized.