Feedback information sending method and apparatus
Feedback information sending methods and apparatuses are provided in this disclosure. One method includes receiving, from a network device, M pieces of downlink control information (DCI) for scheduling transmissions of N pieces of data, the M pieces of DCI comprise first DCI and second DCI, determining, based on resource indication information in third DCI, a time-frequency resource for sending a hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook that comprises feedback information for N pieces of data corresponding to N pieces of DCI of the M pieces of DCI, and sending the HARQ-ACK codebook to the network device on the time-frequency resource.
1 . An apparatus comprising:
at least one processor; and
a memory coupled to the at least one processor and storing programing instructions executable by the at least one processor to perform operations comprising:
receiving, from a network device, M pieces of downlink control information (DCI) for scheduling transmissions of N pieces of data, the M pieces of DCI comprise first DCI and second DCI, the first DCI and the second DCI are two repetitions of a same piece of DCI, and the first DCI and the second DCI are for scheduling a same piece of data in the N pieces of data, wherein M is an integer greater than or equal to 2, and N is an integer less than M and greater than or equal to 2, wherein one piece of DCI or multiple pieces of repeated DCI are for scheduling each piece of data of the N pieces of data, wherein an ith piece of data in the N pieces of data is scheduled by multiple pieces of repeated DCI, and wherein an ith piece of DCI in the N pieces of DCI that corresponds to the ith piece of data is located in an earliest time domain position in the corresponding multiple pieces of repeated DCI for scheduling the ith piece of data, wherein i is a positive integer less than or equal to N;
determining, based on resource indication information in third DCI, a time-frequency resource for sending a hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook that comprises feedback information for N pieces of data corresponding to N pieces of DCI of the M pieces of DCI, wherein multiple pieces of DCI corresponding to multiple cells are located in a last time domain position in the N pieces of DCI, and wherein the third DCI is comprised in the multiple pieces of DCI and corresponds to a cell of the multiple cells with a largest cell identifier value;
determining a first resource set based on a quantity of bits of the feedback information comprised in the HARQ-ACK codebook, wherein the quantity of bits is a quantity inside of a quantity-of-bits interval corresponding to the first resource set, wherein the determining the time-frequency resource comprises determining the time-frequency resource in the first resource set based on the resource indication information in the third DCI; and
sending the HARQ-ACK codebook to the network device on the time-frequency resource.
2 . The apparatus according to claim 1 , wherein
the M pieces of DCI comprise fourth DCI other than the N pieces of DCI, wherein the fourth DCI is a repetition of one of the N pieces of DCI or a repetition of fifth DCI received from the network device other than the M pieces of DCI.
3 . The apparatus according to claim 1 , wherein the M pieces of DCI are carried in L control resource set (CORESET) groups, wherein L is an integer greater than or equal to 2, and wherein the operations comprising:
receiving first indication information from the network device, wherein the first indication information indicates to feed back the feedback information corresponding to the L CORESET groups.
4 . The apparatus according to claim 1 , wherein the M pieces of DCI are carried in a same CORESET group, and the HARQ-ACK codebook is a HARQ-ACK codebook corresponding to the CORESET group.
5 . A feedback information sending method, comprising:
sending M pieces of downlink control information (DCI) for scheduling transmissions of N pieces of data, the M pieces of DCI comprise at least one of first DCI and second DCI, the first DCI and the second DCI are two repetitions of a same piece of DCI, and the first DCI and the second DCI are for scheduling a same piece of data in the N pieces of data, wherein M is an integer greater than or equal to 2, and N is an integer less than M and greater than or equal to 2, wherein one piece of DCI or multiple pieces of repeated DCI are for scheduling each piece of data of the N pieces of data, wherein an ith piece of data in the N pieces of data is scheduled by multiple pieces of repeated DCI, and wherein an ith piece of DCI in the N pieces of DCI that corresponds to the ith piece of data is located in an earliest time domain position in the corresponding multiple pieces of repeated DCI for scheduling the ith piece of data, wherein i is a positive integer less than or equal to N, and wherein the M pieces of DCI further comprise third DCI, resource indication information in the third DCI indicates a time-frequency resource for a hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook, the HARQ-ACK codebook comprises feedback information for N pieces of data corresponding to N pieces of DCI of the M pieces of DCI, wherein multiple pieces of DCI corresponding to multiple cells are located in a last time domain position in the N pieces of DCI, and wherein the third DCI is comprised in the multiple pieces of DCI and corresponds to a cell of the multiple cells with a largest cell identifier value, wherein the time-frequency resource is comprised in a first resource set and corresponds to the resource indication information in the third DCI, and wherein a quantity of bits is a quantity inside of a quantity-of-bits interval corresponding to the first resource set; and
receiving the HARQ-ACK codebook on the time-frequency resource.
6 . The method according to claim 5 , wherein the M pieces of DCI comprise fourth DCI other than the N pieces of DCI, wherein
the fourth DCI is a repetition of one of the N pieces of DCI or a repetition of fifth DCI sent by a network device other than the M pieces of DCI.
7 . The method according to claim 5 , wherein the M pieces of DCI are carried in L control resource set (CORESET) groups, wherein L is an integer greater than or equal to 2, and wherein the method further comprises:
sending first indication information to a terminal device, wherein the first indication information indicates to feed back the feedback information corresponding to the L CORESET groups.
8 . The method according to claim 5 , wherein the M pieces of DCI are carried in a same CORESET group, and the HARQ-ACK codebook is a HARQ-ACK codebook corresponding to the CORESET group.
9 . An apparatus comprising:
at least one processor, and a memory coupled to the at least one processor and storing programing instructions executable by the at least one processor to perform operations comprising:
sending M pieces of downlink control information (DCI) for scheduling transmissions of N pieces of data, the M pieces of DCI comprise at least one of first DCI and second DCI, the first DCI and the second DCI are two repetitions of a same piece of DCI, and the first DCI and the second DCI are for scheduling a same piece of data in the N pieces of data, wherein M is an integer greater than or equal to 2, and N is an integer less than M and greater than or equal to 2, wherein one piece of DCI or multiple pieces of repeated DCI are for scheduling each piece of data of the N pieces of data, wherein an ith piece of data in the N pieces of data is scheduled by multiple pieces of repeated DCI, and wherein an ith piece of DCI in the N pieces of DCI that corresponds to the ith piece of data is located in an earliest time domain position in the corresponding multiple pieces of repeated DCI for scheduling the ith piece of data, wherein i is a positive integer less than or equal to N, and wherein the M pieces of DCI further comprise third DCI, resource indication information in the third DCI indicates a time-frequency resource for a hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook, the HARQ-ACK codebook comprises feedback information for N pieces of data corresponding to N pieces of DCI of the M pieces of DCI, wherein multiple pieces of DCI corresponding to multiple cells are located in a last time domain position in the N pieces of DCI, and wherein the third DCI is comprised in the multiple pieces of DCI and corresponds to a cell of the multiple cells with a largest cell identifier value, wherein the time-frequency resource is comprised in a first resource set and corresponds to the resource indication information in the third DCI, and wherein a quantity of bits is a quantity inside of a quantity-of-bits interval corresponding to the first resource set; and
receiving the HARQ-ACK codebook on the time-frequency resource.
10 . The apparatus according to claim 9 , wherein the M pieces of DCI comprise fourth DCI other than the N pieces of DCI, wherein
the fourth DCI is a repetition of one of the N pieces of DCI or a repetition of fifth DCI sent by a network device other than the M pieces of DCI.
11 . The apparatus according to claim 9 , wherein the M pieces of DCI are carried in L control resource set (CORESET) groups, wherein L is an integer greater than or equal to 2, and wherein the operations comprising
sending first indication information to a terminal device, wherein the first indication information indicates to feed back the feedback information corresponding to the L CORESET groups.