Resource determining method and communications device

Patent metadata

Field	Value
Publication number	US-12328191-B2
Application number	US-202217703409-A
Country	US
Kind code	B2
Filing date	Mar 24, 2022
Priority date	Sep 27, 2019
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

A resource determining method and a communications device are provided. The method includes: determining, based on first resource information and second resource information, a resource for a hybrid automatic repeat request HARQ feedback for downlink transmission; where the first resource information is any one of the following: a first target resource and a first resource set, where the first resource set includes at least two resources.

First claim

What is claimed is:

1. A resource determining method, performed by a communications device and comprising:
determining, based on first resource information and second resource information, a resource for a hybrid automatic repeat request (HARQ) feedback for downlink transmission; wherein
the first resource information comprises:
a first resource set, wherein the first resource set comprises at least two resources;
wherein the second resource information is a second target resource in the first resource set;
wherein before the determining, based on first resource information and second resource information, a resource for a hybrid automatic repeat request (HARQ) feedback for downlink transmission, the method further comprises:
determining, based on a target rule, the first resource set; wherein
the target rule comprises a first rule, wherein the first rule is used to determine, based on a subcarrier spacing (SCS) of a terminal, the first resource set.

2. The method according to claim 1 , wherein the second resource information is a resource offset with respect to the first target resource.

3. The method according to claim 2 , wherein before the determining, based on first resource information and second resource information, a resource for a hybrid automatic repeat request (HARQ) feedback for downlink transmission, the method further comprises:
determining, based on an arrangement location of first information of a terminal in a downlink message, the resource offset; wherein
the downlink message comprises first information of N terminals, wherein N is an integer greater than 1.

4. The method according to claim 3 , wherein the determining, based on an arrangement location of first information of a terminal in a downlink message, the resource offset comprises:
in a case that the arrangement location of the first information of the terminal in the downlink message is the i-th arrangement location, calculating the resource offset Δk(i) according to the following equation:

Δ
⁢

k
⁡
(
i
)

=

[

(

floor
(

(

i
-
1

)

/
P

)

)

×
b

]

⁢
mod
⁢
N

;

wherein b is an adjustment step size, and P is a positive integer.

5. The method according to claim 2 , wherein before the determining, based on first resource information and second resource information, a resource for a hybrid automatic repeat request (HARQ) feedback for downlink transmission, the method further comprises:
performing transmission of second information, wherein the second information is used to indicate the resource offset.

6. The method according to claim 1 , wherein the first target resource is a resource in the first resource set.

7. The method according to claim 1 , wherein
the target rule further comprises any one of the following:
a second rule, wherein the second rule is used to determine, based on a frequency range (FR) of a terminal, the first resource set;
a third rule, wherein the third rule is used to determine, based on a radio network temporary identifier (RNTI) for scrambling target downlink control information (DCI), the first resource set, wherein the target DCI is DCI for scheduling the downlink transmission; and
a fourth rule, wherein the fourth rule is used to determine, based on a random access type of a terminal, the first resource set.

8. The method according to claim 1 , wherein before the determining, based on first resource information and second resource information, a resource for a hybrid automatic repeat request (HARQ) feedback for downlink transmission, the method further comprises:
performing transmission of third information, wherein the third information indicates the first target resource, and the third information is MAC information.

9. A communications device, comprising a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, steps of a resource determining method are implemented, wherein the method comprises:
determining, based on first resource information and second resource information, a resource for a hybrid automatic repeat request (HARQ) feedback for downlink transmission; wherein
the first resource information comprises:
a first resource set, wherein the first resource set comprises at least two resources;
wherein the second resource information is a second target resource in the first resource set;
wherein before the determining, based on first resource information and second resource information, a resource for a hybrid automatic repeat request (HARQ) feedback for downlink transmission, the method further comprises:
determining, based on a target rule, the first resource set; wherein
the target rule comprises a first rule, wherein the first rule is used to determine, based on a subcarrier spacing (SCS) of a terminal, the first resource set.

10. The communications device according to claim 9 , wherein the second resource information is a resource offset with respect to the first target resource.

11. The communications device according to claim 10 , wherein before the determining, based on first resource information and second resource information, a resource for a hybrid automatic repeat request (HARQ) feedback for downlink transmission, when the computer program is executed by the processor, the processor further implements:
determining, based on an arrangement location of first information of a terminal in a downlink message, the resource offset; wherein
the downlink message comprises first information of N terminals, wherein N is an integer greater than 1.

12. The communications device according to claim 11 , wherein the determining, based on an arrangement location of first information of a terminal in a downlink message, the resource offset comprises:
in a case that the arrangement location of the first information of the terminal in the downlink message is the i-th arrangement location, calculating the resource offset Δk(i) according to the following equation:

Δ
⁢

k
⁡
(
i
)

=

[

Assignees

• Vivo Mobile Communication Co Ltd

Inventors

• Chen Xiaohang
• Sun Peng
• Shen Xiaodong

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W72/232

  the control data signalling from the physical layer, e.g. DCI signalling · CPC title

• H04W72/231

  the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling · CPC title

• H04L27/26025

  Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking (allocating sub-channels of the transmission path H04L5/003) · CPC title