Hybrid automatic repeat request feedback in a physical uplink channel

A method for wireless communication at a base station, comprising:

• establishing a connection with a user equipment (UE);
• determining whether to configure the UE to include individual hybrid automatic repeat request (HARQ) feedback for each codeword or to include bundled HARQ feedback for codewords received from the base station in downlink data channel transmissions associated with HARQ feedback reporting in a single uplink channel transmission, wherein when the UE is configured to include individual HARQ feedback for each codeword the HARQ feedback includes side information comprising HARQ feedback for unscheduled downlink data channel transmissions associated with the HARQ feedback reporting;
• and
• transmitting an indication to the UE of whether to include individual HARQ feedback for each codeword or to include bundled HARQ feedback for codewords received from the base station.

An apparatus for wireless communication at a user equipment (UE), comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• monitor for a plurality of codewords from a base station in corresponding downlink data channel transmissions associated with hybrid automatic repeat request (HARQ) feedback reporting in a single uplink channel transmission;
• determine, based at least in part on an indication received from the base station, whether to include individual HARQ feedback for each of the plurality of codewords, or to include bundled HARQ feedback for the plurality of codewords in the single uplink channel transmission, wherein when it is determined to include individual HARQ feedback for each of the plurality of codewords, the UE includes side information comprising HARQ feedback for unscheduled downlink data channel transmissions associated with the HARQ feedback reporting;
• and
• transmit the HARQ feedback for the plurality of codewords in the single uplink channel based at least in part on the determination.

An apparatus for wireless communication at a base station, comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• establish a connection with a user equipment (UE);
• determine whether to configure the UE to include individual hybrid automatic repeat request (HARQ) feedback for each codeword or to include bundled HARQ feedback for codewords received from the base station in downlink data channel transmissions associated with HARQ feedback reporting in a single uplink channel transmission, wherein when the UE is configured to include individual HARQ feedback for each codeword the HARQ feedback includes side information comprising HARQ feedback for unscheduled downlink data channel transmissions associated with the HARQ feedback reporting;
• and
• transmit an indication to the UE of whether to include individual HARQ feedback for each codeword or to include bundled HARQ feedback for codewords received from the base station.