In a third example, a UE may select between using a prioritization rule and using puncturing. The selection may be based on an amount of interruption time required. The selection may be based on a capability of the UE. The selection may be based on instructions received from the eNB. The selection may be based on whether the retuning involves an intra-band switch or an inter-band switch.

For example, if the retuning is intra-band, the UE may determine that 1 symbol or less is required for retuning and may determine to use puncturing symbols of the uplink transmission. If the retuning is inter-band, the UE may determine that more than multiple symbols may be required for retuning and may determine to use a prioritization rule to determine whether to transmit the SRS or the uplink transmission.

Different UEs may have different capabilities which lead to different interruption times. The interruption time may vary across different UEs, as different UE implementations may lead to different switching times. The interruption time may vary for the same UE, depending on the band/frequency location of the two CCs involved in the switching. Thus, determination on how to adjust the SRS or uplink transmission, e.g., using prioritization rules, puncturing, etc. may depend on the capability of the UE or on the band/frequency of the CCs involved.

The UE may also report information, such as a UE capability, to an eNB. The eNB may transmit instructions to the UE for use in determining how to adjust the SRS transmission or the uplink transmission. For example, the UE may indicate to the eNB that it requires a long switching time or a short switching time. Based on this indication, the eNB may return an indication to the UE as to whether the UE should use a prioritization rule and/or puncturing in order to determine whether and/or how to transmit the SRS.