Method for sending hybrid automatic repeat request acknowledgement/negative acknowledgement information and apparatus

A method for receiving hybrid automatic repeat request acknowledgement/negative acknowledgement information, comprising:

• determining a first downlink data occasion set based on a first time domain resource set, wherein the first time domain resource set comprises N time domain resources, the first downlink data occasion set comprises M downlink data occasions, both N and M are integers, N≥1, M≥1, and M≤N;
• determining a first downlink data occasion based on a first time domain resource, wherein the first time domain resource is a start time domain resource for repeatedly transmitting first downlink data K times in a time unit, the first time domain resource is any one of the N time domain resources, the first downlink data occasion is any one of the M downlink data occasions, K is an integer, and K≥2;
• determining a first feedback time unit based on a first offset, wherein the first offset is a difference between a sequence number of a time unit for transmitting the first downlink data and a sequence number of a time unit for feeding back a first codebook, the first codebook is determined based on first feedback information, the first downlink data occasion, and the first downlink data occasion set, and the first feedback information indicates whether a decoding result of the first downlink data is correct;
• and
• receiving the first codebook in the first feedback time unit based on the first downlink data occasion set and the first downlink data occasion.

A communication apparatus, comprising:

• a processor, configured to determine a first downlink data occasion set based on a first time domain resource set, wherein the first time domain resource set comprises N time domain resources, the first downlink data occasion set comprises M downlink data occasions, both N and M are integers, N≥1, M≥1, and M≤N;
• the processor, configured to determine a first downlink data occasion based on a first time domain resource, wherein the first time domain resource is a start time domain resource for repeatedly transmitting first downlink data K times in a time unit, the first time domain resource is any one of the N time domain resources, the first downlink data occasion is any one of the M downlink data occasions, K is an integer, and K≥2;
• the processor, configured to generate a first codebook based on first feedback information, the first downlink data occasion, and the first downlink data occasion set, wherein the first feedback information indicates whether a decoding result of the first downlink data is correct;
• the processor, configured to determine a first feedback time unit based on a first offset, wherein the first offset is a difference between a sequence number of a time unit for transmitting the first downlink data and a sequence number of a time unit for feeding back the first codebook;
• and
• a transmitter, configured to send the first codebook in the first feedback time unit.

A communication apparatus, comprising at least one processor and a memory storing instructions that, when executed by the at least one processor, cause the communication apparatus to perform operations comprising:

• determining a first downlink data occasion set based on a first time domain resource set, wherein the first time domain resource set comprises N time domain resources, the first downlink data occasion set comprises M downlink data occasions, both N and M are integers, N≥1, M≥1, and M≤N;
• determining a first downlink data occasion based on a first time domain resource, wherein the first time domain resource is a start time domain resource for repeatedly transmitting first downlink data K times in a time unit, the first time domain resource is any one of the N time domain resources, the first downlink data occasion is any one of the M downlink data occasions, K is an integer, and K≥2;
• determining a first feedback time unit based on a first offset, wherein the first offset is a difference between a sequence number of a time unit for transmitting the first downlink data and a sequence number of a time unit for feeding back a first codebook, the first codebook is determined based on first feedback information, the first downlink data occasion, and the first downlink data occasion set, and the first feedback information is information indicating whether a decoding result of the first downlink data is correct;
• and
• receiving the first codebook in the first feedback time unit based on the first downlink data occasion set and the first downlink data occasion.