Feedback corresponding to unified transmission configuration indications in downlink control information without downlink assignments

A user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors, coupled to the memory, configured to:
• receive, in a first slot, a downlink control information (DCI) transmission that indicates a unified transmission configuration indicator (TCI), wherein the DCI transmission does not include a downlink assignment;
• determine a location in a hybrid automatic repeat request-acknowledgment (HARQ-ACK) codebook for a HARQ feedback corresponding to the unified TCI based at least in part on a value of an indicator in the DCI transmission;
• and
• transmit the HARQ feedback corresponding to the unified TCI using the HARQ-ACK codebook, wherein the HARQ feedback comprises an ACK to indicate successful reception of the unified TCI in the DCI transmission or a negative acknowledgement (NACK) to indicate a failed reception of the unified TCI in the DCI transmission.

A base station for wireless communication, comprising:

• a memory;
• and
• one or more processors, coupled to the memory, configured to:
• transmit, in a first slot, a downlink control information (DCI) transmission that indicates a unified transmission configuration indicator (TCI), wherein the DCI transmission does not include a downlink assignment;
• and
• receive hybrid automatic repeat request (HARQ) feedback corresponding to the unified TCI in a HARQ-acknowledgment (HARQ-ACK) codebook, wherein the HARQ feedback comprises an ACK to indicate successful reception of the unified TCI in the DCI transmission or a negative acknowledgement (NACK) to indicate a failed reception of the unified TCI in the DCI transmission, wherein a location of the received HARQ feedback in the HARQ-ACK codebook is based at least in part on a value of an indicator in the DCI transmission.