IP Library › Granted Patent US 12684553

Granted Patent B2

US 12684553 · App. 18/488,552 · Granted Jul 14, 2026

Method and system of feedback for group common transmission

Inventors: Peng Hao (Shenzhen, CN); Xing Liu (Shenzhen, CN); Shuaihua Kou (Shenzhen, CN); Xingguang Wei (Shenzhen, CN); Jing Shi (Shenzhen, CN); Xianghui Han (Shenzhen, CN); Min Ren (Shenzhen, CN)

Assignee: ZTE Corporation

H04W72/11 H04L5/0055 H04W72/232

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Quick Facts

Patent No.: US 12684553
App. No.: 18/488,552
Granted: Jul 14, 2026
Kind: B2

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Abstract

A wireless communication method includes receiving, by a User Equipment, from a Base Station, two or more downlink control resources corresponding to a same Semi-Persistent Scheduling transmission for multicast servicers. The two or more downlink control resources include a first downlink control resource corresponding to a first downlink resource. The second downlink control resource corresponds to a second downlink resource. In response to receiving two or more downlink control resources, the wireless communication device determines at least one of a first sub-codebook or a second sub-codebook. This determination is based on at least one of first feedback information corresponding to the first downlink resource or the second feedback information corresponding to the second downlink resource.

Claims (79)

1 . A wireless communication method comprising, comprising:

receiving, by a wireless communication device from a base station, two or more downlink control resources corresponding to a same Semi-Persistent Scheduling (SPS) transmission for multicast services, wherein the two or more downlink control resources comprise a first downlink control resource corresponding to a first downlink resource and a second downlink control resource corresponding to a second downlink resource; and

in response to receiving the two or more downlink control resources, determining, by the wireless communication device, a first sub-codebook and a second sub-codebook based on first feedback information corresponding to the first downlink resource and second feedback information corresponding to the second downlink resource, wherein the first sub-codebook comprises feedback information for downlink resources scheduled using dynamic scheduling, and the second sub-codebook comprises feedback information for downlink resources without using the dynamic scheduling.

2 . The method of claim 1 , wherein:

each of the downlink control resources comprises an activation Physical Downlink Control Channel (PDCCH);

the first downlink resource comprises a first Physical Downlink Shared Channel (PDSCH);

the second downlink resource comprises a second PDSCH;

the first feedback information comprises at least one first Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK) feedback bit; and

the second feedback information comprises at least one second HARQ ACK feedback bit.

3 . The method of claim 1 , wherein:

at least one of following is same for the two or more downlink control resources:

a Hybrid Automatic Repeat Request (HARQ) Process Number (HPN) value;

a Radio Network Temporary Identifier (RNTI) for scrambling;

a Downlink Control Information (DCI) format; or

at least a part of information fields of DCIs carried on the two or more downlink control resources.

4 . The method of claim 1 , further comprising transmitting, by the wireless communication device to the base station, a codebook comprising at least one of the first sub-codebook and the second sub-codebook.

5 . The method of claim 1 , wherein determining the at least one of the first sub-codebook and the second sub-codebook based on the first feedback information and the second feedback information comprises:

forming the first sub-codebook using at least one of the first feedback information or third feedback information, wherein the third feedback information corresponds to a third downlink resource scheduled using the dynamic scheduling.

6 . The method of claim 5 , wherein determining the second sub-codebook based on the second feedback information comprises:

forming the second sub-codebook using at least one of the second feedback information or fourth feedback information, wherein the fourth feedback information corresponds to a fourth downlink resource without using the dynamic scheduling; and

adding the second sub-codebook after the first sub-codebook.

7 . The method of claim 6 , wherein

the first feedback information comprises at least one first feedback bit;

the second feedback information comprises at least one second feedback bit;

the third feedback information comprises at least one third feedback bit;

the fourth feedback information comprises at least one fourth feedback bit; and

adding the second sub-codebook after the first sub-codebook comprises adding the at least one second feedback bit of the second feedback information or the fourth feedback information after the at least one first feedback bit of the first feedback information or the third feedback information.

8 . The method of claim 1 , wherein determining the at least one of the first sub-codebook and the second sub-codebook based on at least one of the first feedback information and the second feedback information comprises:

forming the first sub-codebook using third feedback information, wherein the third feedback information corresponds to a third downlink resource scheduled using the dynamic scheduling;

forming the second sub-codebook using at least one of the first feedback information, the second feedback information, or fourth feedback information, wherein the fourth feedback information corresponds to fourth downlink resource without using the dynamic scheduling; and

adding the second sub-codebook after the first sub-codebook.

9 . The method of claim 8 , wherein

the first feedback information comprises at least one first feedback bit;

the second feedback information comprises at least one second feedback bit;

the third feedback information comprises at least one third feedback bit;

the fourth feedback information comprises at least one fourth feedback bit; and

adding the second sub-codebook after the first sub-codebook comprises adding the at least one first feedback bit of the first feedback information, the second feedback information or the fourth feedback information after the at least one third feedback bit of the third feedback information.

10 . The method of claim 1 , wherein determining the at least one of the first sub-codebook and the second sub-codebook based on the first feedback information and the second feedback information comprises:

forming the first sub-codebook using at least one of the first feedback information, the second feedback information, or third feedback information, wherein the third feedback information corresponds to a third downlink resource scheduled using the dynamic scheduling; and

11 . The method of claim 1 , wherein determining the at least one of the first sub-codebook and the second sub-codebook based on the first feedback information and the second feedback information comprises:

12 . The method of claim 1 , wherein determining the at least one of the first sub-codebook or the second sub-codebook based on the first feedback information and the second feedback information comprises:

in response of determining the second downlink control resource is a last downlink control resource corresponding to a codebook:

forming the second sub-codebook using at least one of the second feedback information or fourth feedback information, wherein the fourth feedback information corresponds to fourth downlink resource without using the dynamic scheduling.

13 . The method of claim 1 , wherein determining the at least one of the first sub-codebook or the second sub-codebook based on the first feedback information and the second feedback information comprises:

in response of determining the second downlink control resource is before at least one downlink control resource that is not the second downlink control resource:

14 . A wireless communication device, comprising:

at least one processor configured to:

receive, via a receiver from a base station, two or more downlink control resources corresponding to a same Semi-Persistent Scheduling (SPS) transmission for multicast services, wherein the two or more downlink control resources comprise a first downlink control resource corresponding to a first downlink resource and a second downlink control resource corresponding to a second downlink resource; and

in response to receiving the two or more downlink control resources, determine a first sub-codebook and a second sub-codebook based on a first feedback information corresponding to the first downlink resource and second feedback information corresponding to the second downlink resource, wherein the first sub-codebook comprises feedback information for downlink resources scheduled using dynamic scheduling, and the second sub-codebook comprises feedback information for downlink resources without using the dynamic scheduling.

15 . A wireless communication method, comprising:

transmitting, by a base station to a plurality of wireless communication devices including a wireless communication device, two or more downlink control resources corresponding to a same Semi-Persistent Scheduling (SPS) transmission for multicast services, wherein the two or more downlink control resources comprise a first downlink control resource corresponding to a first downlink resource and a second downlink control resource corresponding to a second downlink resource; and

receiving, by the base station from the wireless communication device, a codebook comprising a first sub-codebook and a second sub-codebook, wherein at the first sub-codebook and the second sub-codebook is determined based on a first feedback information corresponding to the first downlink resource and second feedback information corresponding to the second downlink resource, wherein the first sub-codebook comprises feedback information for downlink resources scheduled using dynamic scheduling, and the second sub-codebook comprises feedback information for downlink resources without using the dynamic scheduling.

16 . The method of claim 15 , wherein

each of the downlink control resources comprises an activation Physical Downlink Control Channel (PDCCH);

the first downlink resource comprises a first Physical Downlink Shared Channel (PDSCH);

the second downlink resource comprises a second PDSCH;

the first feedback information comprises at least one first Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK) feedback bit; and

the second feedback information comprises at least one second HARQ ACK feedback bit.

17 . The method of claim 15 , wherein

the two or more downlink control resources correspond to a same SPS transmission for the multicast services; and

at least one of the following is same for the two or more downlink control resources:

a Hybrid Automatic Repeat Request (HARQ) Process Number (HPN) value;

a Radio Network Temporary Identifier (RNTI) for scrambling;

a Downlink Control Information (DCI) format; or

at least a part of information fields of DCIs carried on the two or more downlink control resources.

18 . The method of claim 15 , wherein the first sub-codebook is formed using at least one of the first feedback information or third feedback information, wherein the third feedback information corresponds to a third downlink resource scheduled using the dynamic scheduling.

19 . The method of claim 18 , wherein:

the second sub-codebook is formed using at least one of the second feedback information or fourth feedback information, wherein the fourth feedback information corresponds to a fourth downlink resource without using the dynamic scheduling; and

the second sub-codebook is added after a third sub-codebook.

20 . A base station, comprising:

at least one processor configured to:

transmit, via a transceiver to a plurality of wireless communication devices including a wireless communication device, two or more downlink control resources corresponding to a same Semi-Persistent Scheduling (SPS) transmission for multicast services, wherein the two or more downlink control resources comprise a first downlink control resource corresponding to a first downlink resource and a second downlink control resource corresponding to a second downlink resource; and

receive, via the transceiver from the wireless communication device, a codebook comprising a first sub-codebook and a second sub-codebook, wherein the first sub-codebook and the second sub-codebook is determined based on a first feedback information corresponding to the first downlink resource and second feedback information corresponding to the second downlink resource, wherein the first sub-codebook comprises feedback information for downlink resources scheduled using dynamic scheduling, and the second sub-codebook comprises feedback information for downlink resources without using the dynamic scheduling.