Concatenating partitioned hybrid automatic repeat request acknowledgement (harq-ack) bits with two part harq-ack compression

A method of wireless communication by a network device, comprising:

• decoding a first part of a two part hybrid automatic repeat request acknowledgment (HARQ-ACK) payload received from a user equipment (UE), the first part indicating whether quantized HARQ-ACK bits indicate all positive acknowledgments;
• determining a length of a second part of the two part HARQ-ACK payload based on the decoding of the first part;
• decoding the second part of the two part HARQ-ACK payload in accordance with the determined length;
• reconstructing a first value for all bits of an original HARQ-ACK codebook in response to detecting the first value in a bit of the second part corresponding to the original HARQ-ACK codebook;
• and
• reconstructing a second value for each bit of the original HARQ-ACK codebook in response to detecting the second value in a bit of the second part corresponding to the original HARQ-ACK codebook.

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

• at least one memory;
• and
• at least one processor coupled to the at least one memory, the at least one processor configured:
• to convert a block of hybrid automatic repeat request acknowledgment (HARQ-ACK) bits from an original HARQ-ACK codebook into a partition, a plurality of partitions for a plurality of blocks corresponding to quantized HARQ-ACK bits;
• to transform the quantized HARQ-ACK bits into a two part HARQ-ACK payload;
• to separately encode a first part and a second part of the two part HARQ-ACK payload;
• and
• to transmit, to a network node, the encoded first part and the encoded second part.

An apparatus for wireless communication by a network device, comprising:

• at least one memory;
• and
• at least one processor coupled to the at least one memory, the at least one processor configured:
• to decode a first part of a two part hybrid automatic repeat request acknowledgment (HARQ-ACK) payload received from a user equipment (UE), the first part indicating whether quantized HARQ-ACK bits indicate all positive acknowledgments;
• to determine a length of a second part of the two part HARQ-ACK payload based on the decoding of the first part;
• to decode the second part of the two part HARQ-ACK payload in accordance with the determined length;
• to reconstruct a first value for all bits of an original HARQ-ACK codebook in response to detecting the first value in a bit of the second part corresponding to the original HARQ-ACK codebook;
• and
• to reconstruct a second value for each bit of the original HARQ-ACK codebook in response to detecting the second value in a bit of the second part corresponding to the original HARQ-ACK codebook.