Aspects are provided which allow a UE to defer HARQ-ACK reporting in PUCCH transmissions according to a configured HARQ-ACK codebook. In one aspect, the UE receives, from a base station, information triggering feedback for DL HARQ processes of the UE, the UE receives a RRC message configuring the feedback to be for less than all of the DL HARQ processes, and the UE reports the feedback based on the information and the RRC message. In another aspect, the UE reports feedback including a plurality of HARQ-ACK bits in a PUCCH, where each of the HARQ-ACK bits is associated with DL data, and at least one of the DL data is associated with a cancelled PUCCH transmission. The UE may also append to the feedback a HARQ-ACK bit associated with other DL data, where the other data is associated with another cancelled PUCCH transmission.