Transmit power control of sidelink channels on multiple carriers

A user equipment (UE) in a wireless communication system, the UE comprising:

• a transceiver configured to receive information related to:
• sidelink (SL) operation on multiple SL carriers, and
• simultaneous transmissions of one or more physical sidelink feedback channels (PSFCHs) and one or more physical sidelink control or shared channels (PSCCHs or PSSCHs);
• and
• a processor operably coupled to the transceiver, the processor configured to determine first powers and second powers for simultaneous transmissions of the one or more PSFCHs on first carriers and the one or more PSCCHs or PSSCHs on second carriers,
• wherein the first powers are based on values of a first power control parameter associated with the first carriers,
• wherein a sum of the second powers does not exceed a power difference between a maximum power and a sum of the first powers, and
• wherein the transceiver is further configured to simultaneously transmit (i) the one or more PSFCHs on the first carriers using the first powers and (ii) the one or more PSCCHs or PSSCHs on the second carriers using the second powers.