Physical uplink control channel carrier switch with multiple hybrid automatic repeat request acknowledgement codebooks

A base station for wireless communication, comprising:

• a memory;
• and
• one or more processors, coupled to the memory, configured to:
• transmit, to a user equipment (UE), a configuration of a first hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook and a second HARQ-ACK codebook, wherein the configuration indicates that physical uplink control channel (PUCCH) carrier switching is enabled for at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook;
• transmit, to the UE, an indication of a PUCCH carrier switch for the at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook;
• transmit, to the UE, at least one downlink communication associated with the at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook;
• and
• receive, from the UE, HARQ feedback for the at least one downlink communication in the at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook on a target PUCCH carrier based at least in part on the indication of the PUCCH carrier switch.

A method of wireless communication performed by a user equipment (UE), comprising:

• receiving a configuration of a first hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook and a second HARQ-ACK codebook, wherein the configuration indicates that physical uplink control channel (PUCCH) carrier switching is enabled for at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook;
• receiving an indication of a PUCCH carrier switch for the at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook;
• receiving at least one downlink communication associated with the at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook;
• and
• transmitting HARQ feedback for the at least one downlink communication in the at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook on a target PUCCH carrier based at least in part on the indication of the PUCCH carrier switch.