Granted Patent B2

US 12,245,084 · App. 17/421,942 · Granted Mar 4, 2025

Inventors: Xiaodong Yu (Beijing, CN); Zhennian Sun (Beijing, CN); Haipeng Lei (Beijing, CN); Lianhai Wu (Beijing, CN); Jing Han (Beijing, CN)

Assignee: Lenovo (Beijing) Limited

H04W28/26H04W72/20H04W4/40

Abstract

Claims (54)

1. A method performed by a first user equipment (UE), the method comprising:

determining a reserved sidelink resource;

transmitting a signal to a second UE, the signal indicating:

the reserved sidelink resource;

a detecting resource for receiving a pre-emption indication;

a time and/or frequency location of the detecting resource, wherein the signal indicates the time and/or frequency location of the detecting resource by an offset with respect to a time and/or frequency location of the reserved sidelink resource; and

a grant resource for transmitting a grant indication, wherein the signal indicates a time and/or frequency location of the grant resource by an offset with respect to the time and/or frequency location of the reserved sidelink resource; and

in response to the pre-emption indication being received from the second UE:

transmitting the grant indication indicating the reserved sidelink resource is pre-empted by the second UE; and

releasing the reserved sidelink resource to the second UE.

2. The method of claim 1 , wherein the offset relates at least one of a number of timeslots, a number of symbols, and a number of frequency units.

3. The method of claim 1 , wherein the pre-emption indication includes an indicator indicating that the pre-emption indication is a one-shot pre-emption indication or a persistent pre-emption indication.

4. The method of claim 3 , further comprising triggering a resource reselection if the persistent pre-emption indication is received.

5. The method of claim 3 , wherein the reserved sidelink resource comprises a first resource of a plurality of resources and the method further comprises transmitting data on a second resource of the plurality of resources if the pre-emption indication is received and the pre-emption indication is a one-shot preemption indication.

6. The method of claim 1 , wherein the detecting resource comprises a plurality of timeslots arranged in sequence.

7. The method of claim 6 , wherein the plurality of timeslots are indicated by the signal with a starting timeslot and a number of the plurality of timeslots.

8. The method of claim 6 , wherein the plurality of timeslots are indicated by the signal with a starting timeslot and an end timeslot.

9. The method of claim 1 , wherein the grant indication includes an identity information of the first user equipment and an identity information of the second UE.

10. The method of claim 1 , wherein the pre-emption indication is transmitted in a physical sidelink control channel, a physical sidelink shared channel or a physical sidelink feedback channel.

11. The method of claim 1 , wherein the pre-emption indication includes an identity of the second UE and a priority level of data to be transmitted by the second UE.

12. The method of claim 1 , wherein the pre-emption indication is part of a sidelink control information (SCI).

13. A method performed by a second user equipment (UE), the method comprising:

receiving, from a first UE, a signal, the signal indicating:

a reserved sidelink resource scheduled for the first UE;

a detecting resource for receiving a pre-emption indication;

a time and/or frequency location of the detecting resource, wherein the signal indicates the time and/or frequency location of the detecting resource by an offset with respect to a time and/or frequency location of the reserved sidelink resource; and

a grant resource for transmitting a grant indication, wherein the signal indicates a time and/or frequency location of the grant resource by an offset with respect to the time and/or frequency location of the reserved sidelink resource;

transmitting the pre-emption indication to the first UE to preempt the reserved sidelink resource; and

receiving the grant indication indicating the reserved sidelink resource is preempted by the second UE.

14. The method of claim 13 , wherein the offset relates at least one of a number of timeslots, a number of symbols, and a number of frequency unit.

15. The method of claim 13 , wherein the pre-emption indication includes an indicator indicating that the pre-emption indication is a one-shot pre-emption indication or a persistent pre-emption indication.

16. The method of claim 13 , wherein the detecting resource comprises a plurality of timeslots arranged in sequence.

17. A first user equipment (UE), comprising:

at least one memory; and

at least one processor coupled with the at least one memory and configured to cause the first UE to:

determine a reserved sidelink resource;

transmit a signal to a second UE, the signal indicating:

the reserved sidelink resource;

a detecting resource for receiving a pre-emption indication;

a time and/or frequency location of the detecting resource, wherein the signal indicates the time and/or frequency location of the detecting resource by an offset with respect to a time and/or frequency location of the reserved sidelink resource; and

a grant resource for transmitting a grant indication, wherein the signal indicates a time and/or frequency location of the grant resource by an offset with respect to the time and/or frequency location of the reserved sidelink resource; and

in response to the pre-emption indication being received from the second UE:

transmit the grant indication indicating the reserved sidelink resource is pre-empted by the second UE; and

release the reserved sidelink resource to the second UE.

18. A second user equipment (UE), comprising:

at least one memory; and

at least one processor coupled with the at least one memory and configured to cause the second UE to:

receive, from a first UE, a signal, the signal indicating:

a reserved sidelink resource scheduled for the first UE;

a detecting resource for receiving a pre-emption indication;

a time and/or frequency location of the detecting resource, wherein the signal indicates the time and/or frequency location of the detecting resource by an offset with respect to a time and/or frequency location of the reserved sidelink resource; and

a grant resource for transmitting a grant indication, wherein the signal indicates a time and/or frequency location of the grant resource by an offset with respect to the time and/or frequency location of the reserved sidelink resource;

transmit the pre-emption indication to the first UE to preempt the reserved sidelink resource; and

receiving the grant indication indicating the reserved sidelink resource is pre-empted by the second UE.

Assignments (1)

Continuity (1)

References Cited (34)

Cited By (2)

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