IP Library › Granted Patent US 12,255,745

Granted Patent B2

US 12,255,745 · App. 17/225,129 · Granted Mar 18, 2025

Data transmission method using hybrid automatic repeat request process and communications device

Inventor: Yumin Wu (Dongguan, CN)

Assignee: VIVO MOBILE COMMUNICATION CO., LTD.

H04L1/1887 H04L5/0055 H04L5/0098 H04W72/0453 H04W72/20

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Quick Facts

Patent No.: US 12,255,745
App. No.: 17/225,129
Granted: Mar 18, 2025
Kind: B2

External Links

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Abstract

The present disclosure provides a data transmission method and a communications device. The method includes using a Hybrid Automatic Repeat Request (HARQ) process corresponding to a target Bandwidth Part (BWP) to transmit data on a semi-persistent scheduling resource in the target BWP. The HARQ processes respectively corresponding to N BWPs, including the target BWP, of a first cell are different, and N is an integer greater than 1.

Claims (82)

1. A data transmission method applied to a communications device, the method comprising:

using a Hybrid Automatic Repeat Request (HARQ) process corresponding to a target Bandwidth Part (BWP) to transmit data on a semi-persistent scheduling resource in the target BWP,

wherein HARQ processes respectively corresponding to N BWPs, comprising the target BWP, of a first cell are different, and N is an integer greater than 1;

wherein before using the HARQ process corresponding to the target BWP to transmit data on the semi-persistent scheduling resource in the target bandwidth part BWP, the method further comprises:

obtaining a HARQ process ID corresponding to the target BWP according to configuration information of a semi-persistent scheduling resource,

wherein the configuration information of the semi-persistent scheduling resource comprises:

a periodicity of the semi-persistent scheduling resource in the target BWP; or

HARQ configuration information of the semi-persistent scheduling resource in the target BWP:

wherein obtaining the HARQ process ID corresponding to the target BWP according to the configuration information of the semi-persistent scheduling resource comprises:

calculating a HARQ process ID available for a semi-persistent scheduling resource in each periodicity in the semi-persistent scheduling resource in the target BWP according to an initial HARQ process ID and a first offset,

wherein the initial HARQ process ID corresponds to the semi-persistent scheduling resource in the target BWP, and the first offset is determined according to continuous HARQ process IDs configured for the semi-persistent scheduling resource in the target BWP; or

wherein obtaining the HARQ process ID corresponding to the target BWP according to the configuration information of the semi-persistent scheduling resource comprises:

calculating a semi-persistent scheduling resource in the target BWP corresponding to a first HARQ process ID according to the initial HARQ process ID and a second offset; and

calculating the HARQ process ID available for the semi-persistent scheduling resource in each periodicity in the semi-persistent scheduling resource in the target BWP according to the semi-persistent scheduling resource in the target BWP corresponding to the first HARQ process ID, the HARQ configuration information, a periodicity sequence, and a semi-persistent scheduling resource sequence,

wherein the initial HARQ process ID corresponds to the semi-persistent scheduling resource in the target BWP, and the second offset is determined according to HARQ process IDs configured for the semi-persistent scheduling resource in the target BWP.

2. The data transmission method according to claim 1 , wherein the HARQ configuration information comprises:

a continuous or discrete HARQ process ID; or

a quantity of HARQ processes available for a semi-persistent scheduling resource in each periodicity.

3. The data transmission method according to claim 1 , wherein the quantity of HARQ processes available for a semi-persistent scheduling resource in each periodicity is m, and m is an integer greater than 1; and

the calculating a HARQ process ID available for a semi-persistent scheduling resource in each periodicity in the semi-persistent scheduling resource in the target BWP according to an initial HARQ process ID and a first offset comprises:

calculating a HARQ process ID for a first semi-persistent scheduling resource in each periodicity in the semi-persistent scheduling resource in the target BWP according to the initial HARQ process ID and the first offset; and

calculating a HARQ process ID for an i th semi-persistent scheduling resource in each periodicity in the semi-persistent scheduling resource in the target BWP according to the HARQ process ID for the first semi-persistent scheduling resource in each periodicity, the HARQ configuration information, the periodicity sequence, and the semi-persistent scheduling resource sequence;

wherein i is an integer greater than 1 and less than or equal to m.

4. The data transmission method according to claim 1 , wherein the semi-persistent scheduling resource comprises at least one of the following:

downlink semi-persistent scheduling;

uplink configured grant type 1;

uplink configured grant type 2; or

autonomous uplink.

5. The data transmission method according to claim 4 , wherein the semi-persistent scheduling resource comprises the autonomous uplink, the communications device is a terminal, and

the using a HARQ process corresponding to a target BWP to transmit data on a semi-persistent scheduling resource in the target BWP comprises:

using the HARQ process of the target BWP to transmit data on the semi-persistent scheduling resource in the target BWP, and

sending information of the HARQ process of the target BWP to a network-side device.

6. A communications device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, causes the processor to:

use a HARQ process corresponding to a target BWP to transmit data on a semi-persistent scheduling resource in the target BWP,

wherein HARQ processes respectively corresponding to N BWPs, comprising the target BWP, of a first cell are different, and N is an integer greater than 1;

wherein the computer program, when executed by the processor, further causes the processor to:

obtain a HARQ process ID corresponding to the target BWP according to configuration information of a semi-persistent scheduling resource before using the HARQ process corresponding to the target BWP to transmit the data on the semi-persistent scheduling resource in the target BWP,

wherein the configuration information of the semi-persistent scheduling resource comprises:

a periodicity of the semi-persistent scheduling resource in the target BWP; or

HARQ configuration information of the semi-persistent scheduling resource in the target BWP;

wherein, to obtain the HARQ process ID corresponding to the target BWP according to the configuration information of the semi-persistent scheduling resource, the computer program, when executed by the processor, further causes the processor to:

calculate a HARQ process ID available for a semi-persistent scheduling resource in each periodicity in the semi-persistent scheduling resource in the target BWP according to an initial HARQ process ID and a first offset,

calculate a semi-persistent scheduling resource in the target BWP corresponding to a first HARQ process ID according to the initial HARQ process ID and a second offset; and

calculate the HARQ process ID available for the semi-persistent scheduling resource in each periodicity in the semi-persistent scheduling resource in the target BWP according to the semi-persistent scheduling resource in the target BWP corresponding to the first HARQ process ID, the HARQ configuration information, a periodicity sequence, and a semi-persistent scheduling resource sequence,

7. The communications device according to claim 6 , wherein the HARQ configuration information comprises:

a continuous or discrete HARQ process ID; or

a quantity of HARQ processes available for a semi-persistent scheduling resource in each periodicity.

8. The communications device according to claim 6 , wherein the quantity of HARQ processes available for a semi-persistent scheduling resource in each periodicity is m, and m is an integer greater than 1;

wherein, to obtain the HARQ process ID corresponding to the target BWP according to configuration information of the semi-persistent scheduling resource, the computer program, when executed by the processor, further causes the processor to:

calculate a HARQ process ID for an i th semi-persistent scheduling resource in each periodicity among the semi-persistent scheduling resources of the target BWP according to a HARQ process ID for a first semi-persistent scheduling resource in each periodicity, the HARQ configuration information, the periodicity sequence, and the semi-persistent scheduling resource sequence,

wherein i is an integer greater than 1 and less than or equal to m.

9. The communications device according to claim 6 , wherein the semi-persistent scheduling resource comprises at least one of the following:

downlink semi-persistent scheduling;

uplink configured grant type 1;

uplink configured grant type 2; and

autonomous uplink.

10. The communications device according to claim 9 , wherein the semi-persistent scheduling resource comprises the autonomous uplink, and the communications device is a terminal; and

wherein, to use the HARQ process corresponding to the target BWP to transmit data on the semi-persistent scheduling resource in the target BWP, the computer program, when executed by the processor, further causes the processor to:

use the HARQ process of the target BWP to transmit data on the semi-persistent scheduling resource in the target BWP, and

send information of the HARQ process of the target BWP to a network-side device.

11. A non-transitory computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program, when executed by a processor, implements a data transmission method applied to a communications device, the data transmission method comprising:

using a HARQ process corresponding to a target BWP to transmit data on a semi-persistent scheduling resource in the target BWP,