HARQ-ACK transmission method and apparatus

1 . A method for sending a hybrid automatic repeat request-acknowledgment HARQ-ACK, comprising:

receiving, by a terminal device, configuration information from a network device, wherein the configuration information indicates at least two common physical uplink control channel (PUCCH) resource sets configured by the network device for the terminal device, wherein the configuration information includes at least a first PUCCH resource indicator (PRI);

determining, by the terminal device, a first location of a first PUCCH resource from the at least two common PUCCH resource sets based on the at least first PRI; and

sending, by the terminal device, HARQ-ACK information to the network device based on the first PUCCH resource.

2 . The method according to claim 1 , wherein the determining, by the terminal device, the first location of the first PUCCH resource from the at least two common PUCCH resource sets based on the at least first PRI includes:

determining, by the terminal device, the first location of the first PUCCH resource from the at least two common PUCCH resource sets based on the first PRI received from the network device, wherein a value of the first PRI is an integer greater than or equal to 0 and less than a first preset value, and the first preset value is a total quantity of PUCCH resources in the at least two common PUCCH resource sets.

3 . The method according to claim 2 , wherein the determining, by the terminal device, the first location of the first PUCCH resource from the at least two common PUCCH resource sets based on the first PRI received from the network device includes:

determining, by the terminal device, a value range within which the value of the first PRI falls, and determining, from the at least two common PUCCH resource sets, a common PUCCH resource set corresponding to the value range within which the value of the first PRI falls, wherein different common PUCCH resource sets in the at least two common PUCCH resource sets correspond to different value ranges; and

determining, by the terminal device, based on the value of the first PRI, the first PUCCH resource from the common PUCCH resource set corresponding to the value range within which the value of the first PRI falls.

4 . The method according to claim 3 , wherein

in response to the value of the first PRI falling within a first value range, the value of the first PRI is an index of the first PUCCH resource in a first common PUCCH resource set; or

in response to the value of the first PRI falling within a second value range, the value of the first PRI minus a second preset value is an index of the first PUCCH resource in a second common PUCCH resource set.

5 . The method according to claim 4 , wherein

an index of the first common PUCCH resource set plus a third preset value is an index of the second common PUCCH resource set.

6 . The method according to claim 1 , wherein the determining, by the terminal device, the first location of the first PUCCH resource from the at least two common PUCCH resource sets based on the at least first PRI includes:

determining, by the terminal device, a first common PUCCH resource set from the at least two common PUCCH resource sets; and

determining, by the terminal device, the first location of the first PUCCH resource from the first common PUCCH resource set based on a second PRI from the network device, wherein the second PRI indicates a resource location of the first PUCCH resource in the first common PUCCH resource set.

7 . The method according to claim 6 , wherein the determining, by the terminal device, based on the at least first PRI, the first common PUCCH resource set from the at least two common PUCCH resource sets includes:

determining, by the terminal device, the first common PUCCH resource set from the at least two common PUCCH resource sets based on a common PUCCH resource set indicator received from the network device, wherein the common PUCCH resource set indicator indicates the first common PUCCH resource set in the at least two common PUCCH resource sets.

8 . The method according to claim 6 , wherein the at least two common PUCCH resource sets are associated with at least two uplink transmission resource configurations; and

the determining, by the terminal device, based on the at least first PRI, the first common PUCCH resource set from the at least two common PUCCH resource sets based on the at least first PRI includes:

determining, by the terminal device, a first uplink transmission resource configuration used by the terminal device in an uplink transmission process, and determining the common PUCCH resource set associated with the first uplink transmission resource configuration as the first common PUCCH resource set.

9 . The method according to claim 8 , wherein the first uplink transmission resource configuration includes one or more of a PUSCH resource, a preamble set, a physical random access channel PRACH resource, or a coverage enhancement level.

10 . The method according to claim 1 , wherein any two PUCCH resources in the at least two common PUCCH resource sets are orthogonal in frequency domain.

11 . A communication apparatus for sending a hybrid automatic repeat request-acknowledgment HARQ-ACK, comprising:

a transceiver, configured to receive configuration information from a network device, wherein the configuration information indicates at least two common physical uplink control channel (PUCCH) resource sets configured by the network device for the communication apparatus, wherein the configuration information includes at least a first PUCCH resource indicator (PRI);

a memory storing computer-readable instructions; and

a processor connected to the memory, wherein the processor is configured to execute the computer-readable instructions to perform operations including:

determining a first location of a first PUCCH resource from the at least two common PUCCH resource sets based on the at least first PRI; and

sending, via the transceiver, HARQ-ACK information to the network device based on the first PUCCH resource.

12 . The communication apparatus according to claim 11 , wherein the processor is specifically configured to:

determine the first location of the first PUCCH resource from the at least two common PUCCH resource sets based on the first PRI received by the transceiver from the network device, wherein the processor uses the first PRI to determine a resource location of the first PUCCH resource in the at least two common PUCCH resource sets, a value of the first PRI is an integer greater than or equal to 0 and less than a first preset value, and the first preset value is a total quantity of PUCCH resources in the at least two common PUCCH resource sets.

13 . The communication apparatus according to claim 12 , wherein the processor is specifically configured to:

determine a value range within which the value of the first PRI falls, and determine, from the at least two common PUCCH resource sets, a common PUCCH resource set corresponding to the value range within which the value of the first PRI falls, wherein different common PUCCH resource sets in the at least two common PUCCH resource sets correspond to different value ranges; and

determine, based on the value of the first PRI, the first PUCCH resource from the common PUCCH resource set corresponding to the value range within which the value of the first PRI falls.

14 . The communication apparatus according to claim 13 , wherein the processor is further configured to:

in response to the value of the first PRI falling within a first value range, determine the value of the first PRI is an index of the first PUCCH resource in a first common PUCCH resource set; or

in response to the value of the first PRI falling within a second value range, determine the value of the first PRI minus a second preset value is an index of the first PUCCH resource in a second common PUCCH resource set.

15 . The communication apparatus according to claim 14 , wherein the processor is further configured to:

determine an index of the first common PUCCH resource set plus a third preset value is an index of the second common PUCCH resource set.

16 . The communication apparatus according to claim 11 , wherein the processor is specifically configured to:

determine the first location of the first common PUCCH resource set from the at least two common PUCCH resource sets based on the at least first PRI; and

determine the first location of the first PUCCH resource from the first common PUCCH resource set based on a second PRI received by the transceiver from the network device, wherein the second PRI indicates a resource location of the first PUCCH resource in the first common PUCCH resource set.

17 . The communication apparatus according to claim 16 , wherein in response to determining the first location of the first common PUCCH resource set from the at least two common PUCCH resource sets based on the at least first PRI, the processor is specifically configured to:

determine the first location of the first common PUCCH resource set from the at least two common PUCCH resource sets based on a common PUCCH resource set indicator from the network device, wherein the common PUCCH resource set indicator indicates the first common PUCCH resource set in the at least two common PUCCH resource sets.

18 . The communication apparatus according to claim 16 , wherein the at least two common PUCCH resource sets are associated with at least two uplink transmission resource configurations; and

in response to determining the first common PUCCH resource set from the at least two common PUCCH resource sets, the processor is specifically configured to:

determine a first uplink transmission resource configuration useable in an uplink transmission process, and determine a common PUCCH resource set associated with the first uplink transmission resource configuration as the first common PUCCH resource set.

19 . The communication apparatus according to claim 18 , wherein the first uplink transmission resource configuration includes one or more of a PUSCH resource, a preamble set, a physical random access channel PRACH resource, or a coverage enhancement level.

20 . The communication apparatus according to claim 11 , wherein any two PUCCH resources in the at least two common PUCCH resource sets are orthogonal in frequency domain.