Abstract: Various solutions pertaining to mechanisms for feedback of multiple HARQ procedures in a same slot in mobile communications are described. An apparatus receives a plurality of downlink (DL) transmissions from a network node of a wireless network. The apparatus constructs a feedback containing a plurality of hybrid automatic repeat request (HARQ) acknowledgements (HARQ-ACKs) for the plurality of DL transmissions. The apparatus then performs an uplink (UL) transmission of the feedback to the network node in a slot comprising a plurality of sub-slots, with each of the plurality of HARQ-ACKs being in a respective one of the plurality of sub-slots in the slot.

Abstract: Various solutions for reporting hybrid automatic repeat request-acknowledgement (HARQ-ACK) information for ultra-reliable and low latency communications (URLLC) with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a downlink control information (DCI) format comprising a resource indication. The apparatus may choose a physical uplink control channel (PUCCH) resource from a plurality of PUCCH resources according to the resource indication. The apparatus may transmit HARQ-ACK information in the PUCCH resource. The resource indication may indicate timing information of the PUCCH resource by a unit of symbol.