Uplink control information transmission method and apparatus

A method, comprising:

• sending downlink scheduling information of a downlink subframe F(i, j);
• sending, in the downlink subframe F(i, j), downlink data scheduled by the downlink scheduling information:
• the downlink subframe F(i, j) representing a downlink subframe j on a carrier i configured for a terminal, the carrier i∈C, C being a set of all carriers configured for the terminal for downlink data transmission, the subframe j∈K, and K is a set of downlink subframes corresponding to an uplink subframe,
• the downlink subframe F(i, j) belonging to a set M of preconfigured downlink subframes corresponding to the uplink subframe,
• the set M of preconfigured downlink subframes comprising N subsets of preconfigured downlink subframes, N being an integer greater than or equal to 2,
• a bit quantity of a hybrid automatic repeat request-acknowledgement (HARQ-ACK) that needs to be fed back for each downlink subframe in one subset of preconfigured downlink subframes being a predetermined value, and
• bit quantities of HARQ-ACKs that need to be fed back for any downlink subframes in different subsets of preconfigured downlink subframes being different;
• receiving, in the uplink subframe, uplink control information of a receiving status of the downlink data;
• and
• obtaining a HARQ-ACK codebook by decoding the uplink control information, the HARQ-ACK codebook comprising at least one sub-codebook, the at least one sub-codebook being in one-to-one correspondence with at least one subset of preconfigured downlink subframes of the N subsets of preconfigured downlink subframes, and the at least one subset including the downlink subframe F(i, j) in which the downlink data scheduled by the downlink scheduling information is sent.

A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to carry out the steps of:

• sending downlink scheduling information of a downlink subframe F(i, j);
• sending, in the downlink subframe F(i, j), downlink data scheduled by the downlink scheduling information:
• the downlink subframe F(i, j) representing a downlink subframe j on a carrier i configured for a terminal, the carrier i∈C, C being a set of all carriers configured for the terminal for downlink data transmission, the subframe j∈K, and K being a set of downlink subframes corresponding to an uplink subframe,
• the downlink subframe F(i, j) belonging to a set M of preconfigured downlink subframes corresponding to the uplink subframe,
• the set M of preconfigured downlink subframes comprising N subsets of preconfigured downlink subframes, N being an integer greater than or equal to 2,
• a bit quantity of a hybrid automatic repeat request-acknowledgement (HARQ-ACK) that needs to be fed back for each downlink subframe in one subset of preconfigured downlink subframes being a predetermined value, and
• bit quantities of HARQ-ACKs that need to be fed back for any downlink subframes in different subsets of preconfigured downlink subframes being different;
• receiving, in the uplink subframe, uplink control information of a receiving status of the downlink data;
• and
• obtaining a HARQ-ACK codebook by decoding the uplink control information, the HARQ-ACK codebook comprising at least one sub-codebook, the at least one sub-codebook being in one-to-one correspondence with at least one subset of preconfigured downlink subframes of the N subsets of preconfigured downlink subframes, and the at least one subset including the downlink subframe F(i, j) in which the downlink data scheduled by the downlink scheduling information is sent.