Granted Patent B2

US 12,336,002 · App. 17/886,449 · Granted Jun 17, 2025

Inventors: Liang Hu (San Diego, CA); Philippe Jean Marc Michel Sartori (Naperville, IL); Yaser Mohamed Mostafa Kamal Fouad (San Diego, CA); Jung Hyun Bae (San Diego, CA)

Assignee: SAMSUNG ELECTRONICS CO., LTD.

H04W74/0808H04W28/26H04W48/18H04W72/20

Abstract

Claims (47)

1. A device comprising:

a transceiver configured to access a communication network using a sidelink channel; and

a device controller configured to:

perform a listen-before-transmit (LBT) sensing operation; and

perform a transmission using the sidelink channel based on the LBT sensing operation with respect to a slot boundary, wherein the transmission occupies at least a portion of a first slot,

wherein the LBT sensing operation occupies at least a portion of an LBT gap, and at least a portion of the LBT gap occupies at least a portion of a second slot.

2. The device of claim 1 , wherein the LBT gap occupies one or more symbols of the second slot.

3. The device of claim 1 , wherein:

the second slot comprises a sidelink control channel portion; and

the device controller is configured to perform a decoding operation on at least a portion of the sidelink control channel portion.

4. The device of claim 3 , wherein at least a portion of the decoding operation overlaps at least a portion of the LBT sensing operation.

5. The device of claim 1 , wherein the second slot is adjacent to the first slot.

6. The device of claim 1 , wherein the LBT gap occupies at least a portion of a third slot.

7. A device comprising:

a transceiver configured to access a communication network using a sidelink channel; and

a device controller configured to:

transmit, using the sidelink channel, an indication of a resource for a listen-before-transmit (LBT) sensing operation for the transmission;

perform, using the resource, the LBT sensing operation;

perform a transmission using the sidelink channel based on the LBT sensing operation with respect to a slot boundary, wherein the transmission occupies at least a portion of a first slot, and wherein the LBT sensing operation occupies at least a portion of a second slot; and

transmit, based on the LBT sensing operation, a reservation signal, wherein the reservation signal occupies at least a portion of the second slot.

8. The device of claim 7 , wherein the reservation signal occupies a portion of the second slot between a completion of the LBT sensing operation and a guard period of the second slot.

9. The device of claim 8 , wherein the completion of the LBT sensing operation is based on an expiration of a backoff time.

10. The device of claim 9 , wherein the expiration of the backoff time is based on a backoff counter.

11. The device of claim 7 , wherein the device controller is configured to perform a resource reselection operation based on the LBT sensing operation.

12. The device of claim 11 , wherein the device controller is configured to perform the resource reselection operation based on at least a portion of the LBT sensing operation occupying at least a portion of the first slot.

13. A device comprising:

a transceiver configured to access a communication network using a sidelink channel; and

a device controller configured to:

select a resource for a listen-before-transmit (LBT) sensing operation for the transmission; and

select a resource for a transmission using the sidelink channel based on the LBT sensing operation with respect to a slot boundary.

14. The device of claim 13 , wherein:

the resource for the transmission comprises a first frequency range; and

the resource for the LBT sensing operation comprises a second frequency range, wherein

the second frequency range overlaps, at least partially, the first frequency range.

15. The device of claim 13 , wherein:

the transmission occupies at least a portion of a first slot; and

the LBT sensing operation occupies at least a portion of a second slot.

16. The device of claim 15 , wherein the second slot is adjacent to the first slot.

17. The device of claim 13 , wherein the device controller is configured to:

determine a selection window for the resource for the transmission;

select the resource for the transmission from the selection window; and

select the resource for the LBT sensing operation from the selection window.

18. The device of claim 13 , wherein the resource for the LBT sensing operation is based on an LBT gap for the LBT sensing operation.

19. The device of claim 18 , wherein the device controller is configured to determine the LBT gap based on sidelink control information (SCI).

20. The device of claim 13 , wherein the device controller is configured to:

select the resource for the transmission using a processing operation; and

select the resource for the LBT sensing operation using the processing operation.

Assignments (1)

Continuity (3)

References Cited (12)

Cited By (1)

US 12,641,643