Fine granularity ACK/NACK feedback for 5G communication system

A method comprising:

• receiving an acknowledgment bit from a user equipment for at least one code block group of at least one transmit block, the at least one transmit block comprising a plurality of code blocks, wherein each of the plurality of code blocks is allocated to a respective code block group based on a total number of acknowledgment bits allocated to the at least one transmit block and the number of the plurality of code blocks, wherein each code block group is associated with one acknowledgment bit, and wherein the number of code block groups corresponds to the number of acknowledgment bits allocated to the transmit block,
• wherein m−r code block groups comprise L number of code blocks and r code block groups have L+1 code blocks, wherein m is the number of code block groups, L is the floor to the quotient of the number of the plurality of code blocks and the number of acknowledgement bits and r is the remainder.

An apparatus comprising:

• at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
• receive an acknowledgment bit from a user equipment for at least one code block group of at least one transmit block, the at least one transmit block comprising a plurality of code blocks, wherein each of the plurality of code blocks is allocated to a respective code block group based on a total number of acknowledgment bits allocated to the at least one transmit block and the number of the plurality of code blocks, wherein each code block group is associated with one acknowledgment bit, and wherein the number of code block groups corresponds to the number of acknowledgment bits allocated to the transmit block,
• wherein m−r code block groups comprise L number of code blocks and r code block groups have L+1 code blocks, wherein m is the number of code block groups, L is the floor to the quotient of the number of the plurality of code blocks and the number of acknowledgement bits and r is the remainder.

A non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the following:

• receiving an acknowledgment bit from a user equipment for at least one code block group of at least one transmit block, the at least one transmit block comprising a plurality of code blocks, wherein each of the plurality of code blocks is allocated to a respective code block group based on a total number of acknowledgment bits allocated to the at least one transmit block and the number of the plurality of code blocks, wherein each code block group is associated with one acknowledgment bit, and wherein the number of code block groups corresponds to the number of acknowledgment bits allocated to the transmit block,
• wherein m−r code block groups comprise L number of code blocks and r code block groups have L+1 code blocks, wherein m is the number of code block groups, L is the floor to the quotient of the number of the plurality of code blocks, and r is the remainder.