Granted Patent B2

US 12,349,184 · App. 17/715,171 · Granted Jul 1, 2025

Inventors: Wei Jiang (Guangdong, CN); Zichao Ji (Guangdong, CN); Shuyan Peng (Guangdong, CN)

Assignee: VIVO MOBILE COMMUNICATION CO., LTD.

H04W72/569H04W28/0289H04W72/1263H04W72/54

Abstract

Claims (63)

1. A sidelink congestion control method, applied to a first terminal and comprising:

receiving a physical-layer priority mapping rule from a network side device, wherein the physical-layer priority mapping rule comprises at least one of: a mapping relationship between one or more service quality identifiers of the first terminal and physical-layer priorities, and one or more priority values and physical-layer priorities; and

determining a physical-layer priority of the first terminal according to the physical-layer priority mapping rule; wherein

the physical-layer priority is used for determining a transmission resource for the first terminal;

if a measured RSRP value of a resource indicated by a received sidelink control information (SCI) is less than a SL-RSRP threshold, the first terminal does not perform resource reselection;

if the measured RSRP value of the resource indicated by the received SCI is greater than or equal to the SL-RSRP threshold, the first terminal performs resource reselection.

2. The method according to claim 1 , wherein the physical-layer priority mapping rule further comprises: a mapping relationship between one or more of the following higher-layer parameters of the first terminal and the physical-layer priorities:

resource type;

data delay;

packet error rate;

maximum data burst volume; or

averaging window.

3. The method according to claim 1 , wherein the priority of the service quality identifier is higher, the physical-layer priority is higher.

4. The method according to claim 1 , wherein the physical-layer priority of the first terminal is updated according to a first update rule, and the first update rule comprises one or more of the following:

updating the physical-layer priority of the first terminal by the first terminal;

carrying the physical-layer priority of the first terminal in sidelink control information;

updating the physical-layer priority of the first terminal once each time a reserved resource of the first terminal is successfully preempted;

keeping the physical-layer priority of the first terminal unchanged for failed preemption of a reserved resource of the first terminal; and

updating the physical-layer priority of the first terminal per one or more of service, transport block, bandwidth part, carrier, and resource pool.

5. The method according to claim 4 , wherein the updating the physical-layer priority of the first terminal per service or transport block comprises:

if a service or transport block arrives, initializing the physical-layer priority of the first terminal according to the physical-layer priority mapping rule; and

if transmission of a current service or transport block has been completed, resetting the physical-layer priority of the first terminal.

6. A terminal, comprising a processor, a memory, and a program stored in the memory and capable of running on the processor, wherein the terminal is a first terminal, and when the program is executed by the processor, the following steps are implemented:

receiving a physical-layer priority mapping rule from a network side device, wherein the physical-layer priority mapping rule comprises at least one of: a mapping relationship between one or more service quality identifiers of the first terminal and physical-layer priorities, and one or more priority values and physical-layer priorities; and

determining a physical-layer priority of the first terminal according to the physical-layer priority mapping rule; wherein

the physical-layer priority is used for determining a transmission resource for the first terminal;

if a measured RSRP value of a resource indicated by a received sidelink control information (SCI) is less than a SL-RSRP threshold, the first terminal does not perform resource reselection;

if the measured RSRP value of the resource indicated by the received SCI is greater than or equal to the SL-RSRP threshold, the first terminal performs resource reselection.

7. The terminal according to claim 6 , wherein the physical-layer priority mapping rule further comprises: a mapping relationship between one or more of the following higher-layer parameters of the first terminal and the physical-layer priorities:

resource type;

data delay;

packet error rate;

maximum data burst volume; or

averaging window.

8. The terminal according to claim 6 , wherein the priority of the service quality identifier is higher, the physical-layer priority is higher.

9. The terminal according to claim 6 , wherein the physical-layer priority of the first terminal is updated according to a first update rule, and the first update rule comprises one or more of the following:

updating the physical-layer priority of the first terminal by the first terminal;

carrying the physical-layer priority of the first terminal in sidelink control information;

updating the physical-layer priority of the first terminal once each time a reserved resource of the first terminal is successfully preempted;

keeping the physical-layer priority of the first terminal unchanged for failed preemption of a reserved resource of the first terminal; and

updating the physical-layer priority of the first terminal per one or more of service, transport block, bandwidth part, carrier, and resource pool.

10. The terminal according to claim 9 , wherein the updating the physical-layer priority of the first terminal per service or transport block comprises:

if a service or transport block arrives, initializing the physical-layer priority of the first terminal according to the physical-layer priority mapping rule; and

if transmission of a current service or transport block has been completed, resetting the physical-layer priority of the first terminal.

11. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

receiving a physical-layer priority mapping rule from a network side device, wherein the physical-layer priority mapping rule comprises at least one of: a mapping relationship between one or more service quality identifiers of the first terminal and physical-layer priorities, and one or more priority values and physical-layer priorities; and

determining a physical-layer priority of the first terminal according to the physical-layer priority mapping rule; wherein

the physical-layer priority is used for determining a transmission resource for the first terminal;

if a measured RSRP value of a resource indicated by a received sidelink control information (SCI) is less than a SL-RSRP threshold, the first terminal does not perform resource reselection;

if the measured RSRP value of the resource indicated by the received SCI is greater than or equal to the SL-RSRP threshold, the first terminal performs resource reselection.

12. The computer-readable storage medium, according to claim 11 , wherein the physical-layer priority mapping rule further comprises: a mapping relationship between one or more of the following higher-layer parameters of the first terminal and the physical-layer priorities:

resource type;

data delay;

packet error rate;

maximum data burst volume; or

averaging window.

13. The computer-readable storage medium, according to claim 11 , wherein the priority of the service quality identifier is higher, the physical-layer priority is higher.

14. The computer-readable storage medium, according to claim 11 , wherein the physical-layer priority of the first terminal is updated according to a first update rule, and the first update rule comprises one or more of the following:

updating the physical-layer priority of the first terminal by the first terminal;

carrying the physical-layer priority of the first terminal in sidelink control information;

updating the physical-layer priority of the first terminal once each time a reserved resource of the first terminal is successfully preempted;

keeping the physical-layer priority of the first terminal unchanged for failed preemption of a reserved resource of the first terminal; and

updating the physical-layer priority of the first terminal per one or more of service, transport block, bandwidth part, carrier, and resource pool.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (20)