Method, apparatus, and terminal for feeding back HARQ-ACK information

Patent metadata

Field	Value
Publication number	US-12445234-B2
Application number	US-202418415124-A
Country	US
Kind code	B2
Filing date	Jan 17, 2024
Priority date	Jul 23, 2021
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

This application discloses a method, an apparatus, and a terminal for feeding back HARQ-ACK information. The method for feeding back HARQ-ACK information according to embodiments of this application includes: A terminal determines, when N carriers are configured, a second hybrid automatic repeat request acknowledgement HARQ-ACK feedback resource based on a first HARQ-ACK feedback resource and the N carriers; and the terminal transmits HARQ-ACK information based on the second HARQ-ACK feedback resource, where the first HARQ-ACK feedback resource is determined according to a network indication, N≥2, and N is an integer.

First claim

What is claimed is:

1. A method for feeding back HARQ-ACK information, comprising:
determining, by a terminal, when N carriers are configured, a second hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback resource based on a first HARQ-ACK feedback resource and the N carriers; and
transmitting, by the terminal, HARQ-ACK information based on the second HARQ-ACK feedback resource, wherein
the first HARQ-ACK feedback resource is determined according to a network indication, N≥2, and N is an integer;
wherein the determining, by the terminal, the second HARQ-ACK feedback resource based on the first HARQ-ACK feedback resource and the N carriers comprises:
determining, by the terminal, based on a first time, the second HARQ-ACK feedback resource on a first carrier set;
wherein the first time is determined based on the first HARQ-ACK feedback resource;
wherein the first time comprises a first HARQ-ACK feedback time or any time after the first HARQ-ACK feedback time, the first HARQ-ACK feedback time belongs to the first HARQ-ACK feedback resource, and the first carrier set is determined on the first time;
wherein after the determining, by the terminal, based on the first time, the second HARQ-ACK feedback resource on the first carrier set, the method further comprises:
determining, by the terminal, when the second HARQ-ACK feedback resource is not determined on the first carrier set, the second HARQ-ACK feedback resource on the first carrier set based on a second time, wherein
the second time is later than the first time;
wherein that the second HARQ-ACK feedback resource is not determined on the first carrier set comprises: a HARQ-ACK resource determined on the first carrier set conflicts with a downlink (DL) resource.

2. The method according to claim 1 , wherein the determining, by the terminal, the second HARQ-ACK feedback resource based on the first HARQ-ACK feedback resource and the N carriers comprises:
determining, by the terminal, when the first HARQ-ACK feedback resource conflicts with a downlink (DL) resource of the N carriers, the second HARQ-ACK feedback resource based on the first HARQ-ACK feedback resource and an uplink (UL) resource on the N carriers.

3. The method according to claim 1 , wherein the determining, by the terminal, the second HARQ-ACK feedback resource based on the first HARQ-ACK feedback resource and the N carriers comprises:
determining, by the terminal, based on a second carrier, the second HARQ-ACK feedback resource within a first time set, wherein
the first time set is determined based on the first HARQ-ACK feedback resource, and the second carrier belongs to the N carriers;
wherein the first time set comprises the first HARQ-ACK feedback time or any time after the first HARQ-ACK feedback time.

4. The method according to claim 3 , wherein after the determining, by the terminal based on the second carrier, the second HARQ-ACK feedback resource within the first time set, the method further comprises:
determining, by the terminal, when the second HARQ-ACK feedback resource is not determined on the first time set, the second HARQ-ACK feedback resource on a third carrier based on the first time set, wherein
the third carrier belongs to the N carriers, and the third carrier is different from the second carrier.

5. The method according to claim 1 , wherein the determining the second HARQ-ACK feedback resource on the first carrier set comprises:
sequentially determining the second HARQ-ACK feedback resource on each carrier comprised in the first carrier set according to a number sequence of each carrier comprised in the first carrier set.

6. The method according to claim 1 , wherein the second time is determined based on a maximum delay time.

7. The method according to claim 1 , wherein the first carrier set comprises at least one of the following:
at least some of the N carriers;
a carrier determined based on a PUCCH cell timing pattern;
a carrier that receives a PDSCH, wherein the PDSCH corresponds to the HARQ-ACK information;
an uplink transmission carrier indicated by downlink control information (DCI);
a main carrier; and
a subcarrier.

8. The method according to claim 1 , wherein the method further comprises: stopping, by the terminal, when the second HARQ-ACK feedback resource is not determined on the first carrier set but the second time is later than the first time and reaches a maximum delay time, the step of determining the second HARQ-ACK feedback resource on the first carrier set.

9. A chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run a program or instructions to implement the steps of the method according to claim 1 .

10. A computer program product, stored in a storage medium, wherein the computer program product is executed by at least one processor to implement the steps of the method according to claim 1 .

11. A terminal, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or the instructions, when executed by the processor, causes the terminal to perform:
determining, when N carriers are configured, a second hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback resource based on a first HARQ-ACK feedback resource and the N carriers; and
transmitting, HARQ-ACK information based on the second HARQ-ACK feedback resource, wherein
the first HARQ-ACK feedback resource is determined according to a network indication, N≥2, and N is an integer;
wherein when determining the second HARQ-ACK feedback resource based on the first HARQ-ACK feedback resource and the N carriers, the program or the instructions, when executed by the processor, causes the terminal to perform:
determining, based on a first time, the second HARQ-ACK feedback resource on a first carrier set;
wherein the first time is determined based on the first HARQ-ACK feedback resource;
wherein the first time comprises a first HARQ-ACK feedback time or any time after the first HARQ-ACK feedback time, the first HARQ-ACK feedback time belongs to the first HARQ-ACK feedback resource, and the first carrier set is determined on the first time;
wherein after the determining, based on the first time, the second HARQ-ACK feedback resource on the first carrier set, the program or the instructions, when executed by the processor, causes the terminal to perform:
determining, when the second HARQ-ACK feedback resource is not determined on the first carrier set, the second HARQ-ACK feedback resource on the first carrier set based on a second time, wherein
the second time is later than the first time;
wherein that the second HARQ-ACK feedback resource is not determined on the first carrier set comprises: a HARQ-ACK resource determined on the first carrier set conflicts with a downlink (DL) resource.

12. The terminal according to claim 11 , wherein when determining; the second HARQ-ACK feedback resource based on the first HARQ-ACK feedback resource and the N carriers, the program or the instructions, when executed by the processor, causes the terminal to further perform:
determining, based on a second carrier, the second HARQ-ACK feedback resource within a first time set, wherein
the first time set is determined based on the first HARQ-ACK feedback resource, and the second carrier belongs to the N carriers;
wherein the first time set comprises the first HARQ-ACK feedback time or any time after the first HARQ-ACK feedback time.

13. A non-transitory readable storage medium, storing a program or instructions, wherein

Assignees

• Vivo Mobile Communication Co Ltd

Inventors

• Chen Xiaohang
• Zeng Chaojun

Classifications

• H04L1/1896

  ARQ related signaling · CPC title

• H04L1/1864

  ARQ related signaling (H04L1/1607 takes precedence) · CPC title

• H04L1/1861

  Physical mapping arrangements (for ACK signaling see also H04L5/0053) · CPC title

• H04L5/001

  the frequencies being arranged in component carriers · CPC title

• H04L1/1893 Primary

  Physical mapping arrangements (physical resource mapping in general H04L5/00) · CPC title