Granted Patent B2

US 12,401,401 · App. 18/772,994 · Granted Aug 26, 2025

Inventors: Hyukjin Chae (San Diego, CA); Esmael Hejazi Dinan (McLean, VA); Kyungmin Park (Vienna, VA); Yunjung Yi (Vienna, VA)

Assignee: Ofinno, LLC

H04B7/0626H04B7/0486H04B7/0632H04L5/005H04W72/0446H04W76/27H04W80/02H04W92/18

Abstract

Claims (44)

1. A first wireless device comprising:

one or more processors; and

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

receive, from a second wireless device, one or more configuration messages comprising a sidelink latency upper bound for sidelink channel state information (CSI) reporting;

receive, from the second wireless device and during a time slot, a sidelink CSI reporting triggering indication via a physical sidelink shared channel;

determine, based on receiving the sidelink CSI reporting triggering indication, one or more sidelink CSI reporting resources within a time period indicated by:

the sidelink latency upper bound; and

starting from the time slot; and

transmit one or more sidelink CSIs on the one or more sidelink CSI reporting resources.

2. The first wireless device of claim 1 , wherein the instructions further cause the first wireless device to receive, from the second wireless device and during the time slot, one or more CSI reference signals, wherein a frequency resource block size of the one or more CSI reference signals is equal to a frequency resource block size of one or more physical sidelink shared channels (PSSCHs) being transmitted with the one or more CSI reference signals.

3. The first wireless device of claim 1 , wherein the sidelink CSI reporting triggering indication is received via sidelink control information.

4. The first wireless device of claim 3 , wherein the sidelink control information is second stage sidelink control information.

5. The first wireless device of claim 4 , wherein the second stage sidelink control information is received via a PSSCH.

6. The first wireless device of claim 1 , wherein the one or more configuration messages are received via one or more sidelink radio resource control messages (RRCs).

7. The first wireless device of claim 1 , wherein the one or more sidelink CSIs comprise one or more channel quality indicators and one or more rank indicators.

8. The first wireless device of claim 1 , wherein the instructions further cause the first wireless device to:

receive, from the second wireless device and during the time slot, one or more CSI reference signals; and

determine the one or more sidelink CSIs based on the one or more CSI reference signals.

9. The first wireless device of claim 1 , wherein the one or more sidelink CSIs are transmitted via a sidelink medium access control control element (MAC CE).

10. The first wireless device of claim 1 , wherein the first wireless device and the second wireless device are a pair in a unicast group.

11. A method comprising:

receiving, by a first wireless device from a second wireless device, one or more configuration messages comprising a sidelink latency upper bound for sidelink channel state information (CSI) reporting;

receiving, by the first wireless device from the second wireless device and during a time slot, a sidelink CSI reporting triggering indication via a physical sidelink shared channel;

determining, by the first wireless device and based on receiving the sidelink CSI reporting triggering indication, one or more sidelink CSI reporting resources within a time period indicated by:

the sidelink latency upper bound; and

starting from the time slot; and

transmitting, by the first wireless device, one or more sidelink CSIs on the one or more sidelink CSI reporting resources.

12. The method of claim 11 , further comprising receiving, by the first wireless device from the second wireless device and during the time slot, one or more CSI reference signals, wherein a frequency resource block size of the one or more CSI reference signals is equal to a frequency resource block size of one or more physical sidelink shared channels (PSSCHs) being transmitted with the one or more CSI reference signals.

13. The method of claim 11 , wherein the sidelink CSI reporting triggering indication is received via sidelink control information.

14. The method of claim 13 , wherein the sidelink control information is second stage sidelink control information.

15. The method of claim 14 , wherein the second stage sidelink control information is received via a PSSCH.

16. The method of claim 11 , wherein the one or more configuration messages are received via one or more sidelink radio resource control messages (RRCs).

17. The method of claim 11 , wherein the one or more sidelink CSIs comprise one or more channel quality indicators and one or more rank indicators.

18. The method of claim 11 , further comprising:

receiving, from the second wireless device and during the time slot, one or more CSI reference signals; and

determining the one or more sidelink CSIs based on the one or more CSI reference signals.

19. The method of claim 11 , wherein the one or more sidelink CSIs are transmitted via a sidelink medium access control control element (MAC CE).

20. 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, from a second wireless device, one or more configuration messages comprising a sidelink latency upper bound for sidelink channel state information (CSI) reporting;

receive, from the second wireless device and during a time slot, a sidelink CSI reporting triggering indication via a physical sidelink shared channel;

determine, based on receiving the sidelink CSI reporting triggering indication, one or more sidelink CSI reporting resources within a time period indicated by:

the sidelink latency upper bound; and

starting from the time slot; and

transmit one or more sidelink CSIs on the one or more sidelink CSI reporting resources.

Assignments (1)

Continuity (3)

References Cited (38)