Granted Patent B2

US 12,295,014 · App. 18/926,476 · Granted May 6, 2025

Inventors: Jongwoo Hong (Vienna, VA); Hyoungsuk Jeon (Centreville, VA); Esmael Hejazi Dinan (McLean, VA); Taehun Kim (Fairfax, VA); Hyukjin Chae (San Diego, CA); Hua Zhou (Vienna, VA); Bing Hui (Nanjing, CN)

Assignee: Ofinno, LLC

H04W72/25H04L1/1812H04W76/28

Abstract

Claims (73)

1. A method comprising:

receiving, by a first wireless device, one or more configuration parameters indicating:

a plurality of sidelink carriers associated with a sidelink radio resource control (RRC) connection to a second wireless device;

a discontinuous transmission (DTX) threshold value; and

a channel busy ratio (CBR) threshold value for a sidelink carrier selection procedure;

selecting one or more first sidelink carriers from the plurality of sidelink carriers;

determining:

one or more DTXs on at least one sidelink carrier of the one or more first sidelink carriers; and

a number of the one or more DTXs on one or more second sidelink carriers of the at least one sidelink carriers being equal to the DTX threshold value, wherein a DTX on each sidelink carrier of the one or more first sidelink carriers is based on absence of a physical sidelink feedback channel (PSFCH) reception on the corresponding sidelink carrier;

based on the determining:

triggering the sidelink carrier selection procedure for the sidelink RRC connection; and

transmitting a message comprising a parameter indicating the one or more second sidelink carriers;

selecting, during the triggered sidelink carrier selection procedure and based on a CBR, of a third sidelink carrier from the plurality of sidelink carriers, being below the CBR threshold value, the third sidelink carrier; and

transmitting, to the second wireless device, a sidelink transport block (TB) via the third sidelink carrier.

2. The method of claim 1 , wherein the triggered sidelink carrier selection procedure is a sidelink carrier reselection procedure.

3. The method of claim 1 , further comprising:

receiving, from a base station, an RRC message indicating that a transmission of a sidelink hybrid automatic repeat request (HARQ) feedback of a sidelink TB of one or more sidelink logical channels (LCs) is enabled.

4. The method of claim 3 , further comprising:

determining, by the first wireless device, that the transmission of a sidelink HARQ feedback of a sidelink TB of the one or more sidelink LCs is enabled; and

transmitting, to the second wireless device, a sidelink RRC message comprising an indicator indicating that the transmission of a sidelink HARQ feedback of a sidelink TB of the one or more sidelink LCs is enabled.

5. The method of claim 3 , further comprising:

transmitting, to the second wireless device and via a physical sidelink shared channel (PSSCH), an indicator indicating that the sidelink HARQ feedback of a sidelink TB of the one or more sidelink LCs is enabled.

6. The method of claim 3 , wherein each sidelink carrier of the sidelink carriers is associated with the one or more sidelink LCs.

7. The method of claim 3 , wherein the CBR threshold value is associated with a priority of the one or more sidelink LCs.

8. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the wireless device to:

receive one or more configuration parameters indicating:

a plurality of sidelink carriers associated with a sidelink radio resource control (RRC) connection to a second wireless device;

a discontinuous transmission (DTX) threshold value; and

a channel busy ratio (CBR) threshold value for a sidelink carrier selection procedure;

select one or more first sidelink carriers from the plurality of sidelink carriers;

determine:

one or more DTXs on at least one sidelink carrier of the one or more first sidelink carriers; and

a number of the one or more DTXs on one or more second sidelink carriers of the at least one sidelink carriers being equal to the DTX threshold value, wherein a DTX on each sidelink carrier of the one or more first sidelink carriers is based on absence of a physical sidelink feedback channel (PSFCH) reception on the corresponding sidelink carrier;

based on the determining:

trigger the sidelink carrier selection procedure for the sidelink RRC connection; and

transmit a message comprising a parameter indicating the one or more second sidelink carriers;

select, during the triggered sidelink carrier selection procedure and based on a CBR, of a third sidelink carrier from the plurality of sidelink carriers, being below the CBR threshold value, the third sidelink carrier; and

transmit, to the second wireless device, a sidelink transport block (TB) via the third sidelink carrier.

9. The wireless device of claim 8 , wherein the triggered sidelink carrier selection procedure is a sidelink carrier reselection procedure.

10. The wireless device of claim 8 , wherein the instructions further cause the wireless device to:

receive, from a base station, an RRC message indicating that a transmission of a sidelink hybrid automatic repeat request (HARQ) feedback of a sidelink TB of one or more sidelink logical channels (LCs) is enabled.

11. The wireless device of claim 10 , wherein the instructions further cause the wireless device to:

determine that the transmission of a sidelink HARQ feedback of a sidelink TB of the one or more sidelink LCs is enabled; and

transmit, to the second wireless device, a sidelink RRC message comprising an indicator indicating that the transmission of a sidelink HARQ feedback of a sidelink TB of the one or more sidelink LCs is enabled.

12. The wireless device of claim 10 , wherein the instructions further cause the wireless device to:

transmit, to the second wireless device and via a physical sidelink shared channel (PSSCH), an indicator indicating that the sidelink HARQ feedback of a sidelink TB of the one or more sidelink LCs is enabled.

13. The wireless device of claim 10 , wherein each sidelink carrier of the sidelink carriers is associated with the one or more sidelink LCs.

14. The wireless device of claim 10 , wherein the CBR threshold value is associated with a priority of the one or more sidelink LCs.

15. A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:

receive one or more configuration parameters indicating:

a plurality of sidelink carriers associated with a sidelink radio resource control (RRC) connection to a second wireless device;

a discontinuous transmission (DTX) threshold value; and

a channel busy ratio (CBR) threshold value for a sidelink carrier selection procedure;

select one or more first sidelink carriers from the plurality of sidelink carriers;

determine:

one or more DTXs on at least one sidelink carrier of the one or more first sidelink carriers; and

a number of the one or more DTXs on one or more second sidelink carriers of the at least one sidelink carriers being equal to the DTX threshold value, wherein a DTX on each sidelink carrier of the one or more first sidelink carriers is based on absence of a physical sidelink feedback channel (PSFCH) reception on the corresponding sidelink carrier;

based on the determining:

trigger the sidelink carrier selection procedure for the sidelink RRC connection; and

transmit a message comprising a parameter indicating the one or more second sidelink carriers;

select, during the triggered sidelink carrier selection procedure and based on a CBR, of a third sidelink carrier from the plurality of sidelink carriers, being below the CBR threshold value, the third sidelink carrier; and

transmit, to the second wireless device, a sidelink transport block (TB) via the third sidelink carrier.

16. The non-transitory computer-readable medium of claim 15 , wherein the triggered sidelink carrier selection procedure is a sidelink carrier reselection procedure.

17. The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the wireless device to:

receive, from a base station, an RRC message indicating that a transmission of a sidelink hybrid automatic repeat request (HARQ) feedback of a sidelink TB of one or more sidelink logical channels (LCs) is enabled.

18. The non-transitory computer-readable medium of claim 17 , wherein the instructions further cause the wireless device to:

determine that the transmission of a sidelink HARQ feedback of a sidelink TB of the one or more sidelink LCs is enabled; and

transmit, to the second wireless device, a sidelink RRC message comprising an indicator indicating that the transmission of a sidelink HARQ feedback of a sidelink TB of the one or more sidelink LCs is enabled.

19. The non-transitory computer-readable medium of claim 17 , wherein the instructions further cause the wireless device to:

transmit, to the second wireless device and via a physical sidelink shared channel (PSSCH), an indicator indicating that the sidelink HARQ feedback of a sidelink TB of the one or more sidelink LCs is enabled.

20. The non-transitory computer-readable medium of claim 17 , wherein each sidelink carrier of the sidelink carriers is associated with the one or more sidelink LCs.

Assignments (1)

Continuity (3)

References Cited (32)