Techniques and apparatuses for using mini-slots for hybrid automatic repeat request (HARQ) transmissions

An apparatus for wireless communication, comprising:

• a memory;
• and
• one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
• receive, from a base station (BS), an indicator associated with a hybrid automatic repeat request (HARQ) process, wherein the indicator indicates a number of mini-slots to be bundled for a HARQ transmission of the HARQ process;
• and
• decode the HARQ transmission based at least in part on the mini-slots,
• wherein the apparatus is configured to decode the HARQ transmission using at least one of:
• a Chase combining scheme based at least in part on a determination that two or more of the mini-slots includes a same packet of the HARQ transmission,
• incremental redundancy based at least in part on a determination that two or more of the mini-slots includes a different portion of a packet of the HARQ transmission, or
• incremental redundancy based at least in part on a determination that two or more of the mini-slots includes a same packet of the HARQ transmission and different respective redundancy versions are used for the two or more of the mini-slots.

A non-transitory computer-readable medium storing computer executable code for wireless communication, comprising code for:

• receiving, from a base station (BS), an indicator associated with a hybrid automatic repeat request (HARQ) process, wherein the indicator indicates a number of mini-slots to be bundled for a HARQ transmission of the HARQ process;
• decoding the HARQ transmission based at least in part on the mini-slots;
• and
• sending an acknowledgement or a non-acknowledgement response based at least in part on at least one of:
• a determination that a repetition period, corresponding to the number of the mini-slots of the HARQ transmission, has expired,
• a determination that the repetition period has expired and that a remaining latency period, of a threshold latency associated with the HARQ process, satisfies a threshold,
• a determination that each respective one of the mini-slots of the HARQ transmission has been received or decoded, or
• a determination that each respective one of the mini-slots of the HARQ transmission has been received or decoded and that the remaining latency period does not satisfy the threshold.

An apparatus for wireless communication, comprising:

• means for receiving, from a base station (BS), an indicator associated with a hybrid automatic repeat request (HARQ) process, wherein the indicator indicates a number of mini-slots to be bundled for a HARQ transmission of the HARQ process;
• and means for decoding the HARQ transmission based at least in part on the mini-slots, means for calculating accumulated capacity based at least in part on a signal to interference plus noise ratio (SINR) of the HARQ transmission;
• and means for providing, to the BS, channel state information (CSI) feedback indicating an amount of resources to decode the HARQ transmission;
• wherein the amount of resources is based at least in part on a difference between a target capacity of the HARQ transmission and the accumulated capacity.