Wireless communication method and communications apparatus

An apparatus, comprising:

• one or more processors;
• one or memories coupled to the one or more processors, wherein the one or more memories store a program to be executed by the one or more processors, the program including instructions that, when executed by the one or more processors, facilitate the apparatus carrying out a method comprising:
• determining a candidate opportunity set, wherein a quantity of candidate opportunities comprised in the candidate opportunity set is a maximum quantity of non-overlapping groups of data transmission opportunities comprised in a data transmission opportunity set, wherein:
• the data transmission opportunity set corresponds to a first set,
• the first set comprises one or more downlink sub-time units, and
• the one or more downlink sub-time units correspond to a target uplink sub-time unit;
• and
• performing one of sending or receiving feedback information in the target uplink sub-time unit,
• wherein the feedback information comprises a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook corresponding to the candidate opportunity set,
• wherein the data transmission opportunity set is a union set of data transmission opportunities corresponding to K downlink time units in a second set,
• wherein the second set comprises a downlink time unit corresponding to all downlink sub-time units in the first set, a quantity of downlink time units corresponding to all the downlink sub-time units in the first set is K, and K is a positive integer;
• wherein an end location of a data transmission opportunity corresponding to a downlink time unit in the second set is in a downlink sub-time unit that is in the first set and that corresponds to the downlink time unit;
• and
• wherein the one or more downlink sub-time units included in the first set is determined based on one or more offsets, wherein a time domain offset of the target uplink sub-time unit relative to each of the one or more downlink sub-time units is one of the one or more offsets, and wherein the one or more downlink sub-time units respectively correspond to the one or more offsets.

A non-transitory computer readable medium, wherein the non-transitory computer readable medium stores instructions that, when executed by one or more processors, facilitate carrying out a method comprising

• determining a candidate opportunity set, wherein a quantity of candidate opportunities comprised in the candidate opportunity set is a maximum quantity of non-overlapping groups of data transmission opportunities comprised in a data transmission opportunity set, wherein:
• the data transmission opportunity set corresponds to a first set,
• the first set comprises one or more downlink sub-time units, and
• the one or more downlink sub-time units correspond to a target uplink sub-time unit;
• and
• performing one of sending or receiving feedback information in the target uplink sub-time unit,
• wherein the feedback information comprises a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook corresponding to the candidate opportunity set,
• wherein the data transmission opportunity set is a union set of data transmission opportunities corresponding to K downlink time units in a second set,
• wherein the second set comprises a downlink time unit corresponding to all downlink sub-time units in the first set, a quantity of downlink time units corresponding to all the downlink sub-time units in the first set is K, and K is a positive integer;
• wherein an end location of a data transmission opportunity corresponding to a downlink time unit in the second set is in a downlink sub-time unit that is in the first set and that corresponds to the downlink time unit;
• and
• wherein the one or more downlink sub-time units included in the first set is determined based on one or more offsets, wherein a time domain offset of the target uplink sub-time unit relative to each of the one or more downlink sub-time units is one of the one or more offsets, and wherein the one or more downlink sub-time units respectively correspond to the one or more offsets.