Granted Patent B2

US 12,200,766 · App. 18/442,969 · Granted Jan 14, 2025

Inventors: Jianghong Luo (Skillman, NJ); Jing Sun (San Diego, CA); Xiaoxia Zhang (San Diego, CA); Navid Abedini (Basking Ridge, NJ); Junyi Li (Greentown, PA); Tao Luo (San Diego, CA); Naeem Akl (Bridgewater, NJ)

Assignee: QUALCOMM Incorporated

H04W74/0808H04B7/2612H04L12/413

Abstract

Claims (72)

1. A method of wireless communication performed by a first wireless communication device, the method comprising:

communicating a control signal indicating a clear channel assessment (CCA) trigger;

performing, in response to the CCA trigger, a first CCA;

in response to the first CCA resulting in a pass:

transmitting a first CCA success signal associated with the first CCA; and

in response to receiving a second CCA success signal associated with the first CCA, communicating a communication signal in a channel occupancy time (COT); and

in response to the first CCA resulting in a fail:

transmitting a CCA restart indication;

performing a second CCA; and

monitoring for at least one of a third CCA success signal associated with the second CCA or a restart indication associated with the second CCA.

2. The method of claim 1 , wherein the receiving the control signal comprises receiving the control signal from a second wireless communication device, and wherein the receiving the second CCA success signal comprises receiving the second CCA success signal from a third wireless communication device different from the first wireless communication device and the second wireless communication device.

3. The method of claim 1 , wherein the communicating the control signal comprises transmitting the control signal to a second wireless communication device, and wherein the receiving the second CCA success signal comprises receiving the second CCA success signal from the second wireless communication device.

4. The method of claim 1 , wherein:

the control signal further indicates a first CCA timing configuration; and

the performing the first CCA is further based on the first CCA timing configuration.

5. The method of claim 1 , further comprising:

performing a plurality of CCAs based on the CCA trigger, the plurality of CCAs including the first CCA and the second CCA.

6. The method of claim 1 , further comprising:

transmitting, in response to the second CCA resulting in a pass, a fourth CCA success signal during a first time period; and

performing channel sensing during a second time period following the first time period.

7. The method of claim 6 , further comprising:

transmitting, in response to detecting interference during the second time period, a second CCA restart indication; and

performing a third CCA.

8. The method of claim 1 , further comprising:

transmitting, during a first time period, a fourth CCA success signal;

receiving, during a second time period following the first time period, the third CCA success signal; and

communicating, during a second channel occupancy time (COT) following the second time period, a second communication signal.

9. A method of wireless communication performed by a first wireless communication device, the method comprising:

receiving a control signal indicating a clear channel assessment (CCA) trigger;

performing, in response to the CCA trigger, a first CCA;

monitoring for at least one of a first CCA success signal associated with the first CCA or a first CCA restart indication associated with the first CCA;

in response to the first CCA success signal being received:

communicating, in response to the first CCA resulting in a pass and to receiving the first CCA success signal, a communication signal in a channel occupancy time (COT); and

in response to the first CCA restart indication being received:

performing, in response to receiving the first CCA restart indication, a second CCA.

10. The method of claim 9 , wherein the receiving the control signal comprises receiving the control signal from a second wireless communication device, and wherein the method comprises receiving the first CCA success signal from a third wireless communication device different from the first wireless communication device and the second wireless communication device.

11. The method of claim 9 , wherein the receiving the control signal comprises receiving the control signal from a second wireless communication device, and wherein the method comprises receiving the first CCA success signal from the second wireless communication device.

12. The method of claim 9 , wherein:

the control signal further indicates a first CCA timing configuration; and

the performing the first CCA is further based on the first CCA timing configuration.

13. The method of claim 9 , further comprising:

performing a plurality of CCAs based on the CCA trigger, the plurality of CCAs including the first CCA and the second CCA.

14. The method of claim 9 , further comprising:

transmitting, in response to the second CCA resulting in a pass, a second CCA success signal.

15. A first wireless communication device, comprising:

one or more processors; and

one or more memories in communication with the one or more processors, wherein the first wireless communication device is configured to:

communicate a control signal indicating a clear channel assessment (CCA) trigger;

perform, in response to the CCA trigger, a first CCA;

in response to the first CCA resulting in a pass:

transmit a first CCA success signal associated with the first CCA; and

in response to receiving a second CCA success signal associated with the first CCA, communicate a communication signal in a channel occupancy time (COT); and

in response to the first CCA resulting in a fail:

transmit a CCA restart indication;

perform a second CCA; and

monitor for at least one of a third CCA success signal associated with the second CCA or a restart indication associated with the second CCA.

16. The first wireless communication device of claim 15 , wherein the first wireless communication device is configured to:

receive the control signal from a second wireless communication device, and

receive the second CCA success signal from a third wireless communication device different from the first wireless communication device and the second wireless communication device.

17. The first wireless communication device of claim 15 , wherein the first wireless communication device is configured to:

transmit the control signal to a second wireless communication device, and

receive the second CCA success signal from the second wireless communication device.

18. The first wireless communication device of claim 15 , wherein:

the control signal further indicates a first CCA timing configuration; and

the first wireless communication device is configured to perform the first CCA further based on the first CCA timing configuration.

19. The first wireless communication device of claim 15 , wherein the first wireless communication device is configured to:

perform a plurality of CCAs based on the CCA trigger, the plurality of CCAs including the first CCA and the second CCA.

20. The first wireless communication device of claim 15 , wherein the first wireless communication device is further configured to:

transmit, in response to the second CCA resulting in a pass, a fourth CCA success signal during a first time period;

perform channel sensing during a second time period following the first time period;

transmit, in response to detecting interference during the second time period, a second CCA restart indication; and

perform a third CCA.

Assignments (1)

Continuity (2)

References Cited (25)