Vehicle-to-everything (V2X) inter-user equipment (UE) coordination

1. A method of wireless communication performed by a sensing user equipment (UE), comprising:

identifying resource availability during a sensing window;

receiving a request to share resource information with a transmitter UE;

determining a sharing condition is satisfied; and

sharing the resource availability with the transmitter UE based on determining the sharing condition is satisfied.

2. The method of claim 1 , further comprising:

identifying the resource availability from a resource pool configured for resource sharing; and

determining the sharing condition is satisfied based on the resource pool being configured for resource sharing.

3. The method of claim 1 , further comprising determining the sharing condition is satisfied based on receiving the request to share from the transmitter UE.

4. The method of claim 3 , in which the request is received via sidelink control information (SCI), a medium access control (MAC) control element (CE), or a radio resource control (RRC) signal.

5. The method of claim 1 , further comprising:

receiving a stop request from the transmitter UE; and

stopping the resource availability sharing based on receiving the stop request.

6. The method of claim 1 , further comprising determining the sharing condition is satisfied based on transmissions from one or both of the sensing UE or the transmitter UE satisfying a quality of service level.

7. The method of claim 1 , further comprising:

determining a channel busy ratio (CBR) is greater than a CBR threshold; and

determining the sharing condition is satisfied based on the CBR being greater than the CBR threshold.

8. The method of claim 1 , further comprising:

receiving, from a base station, a message allowing the sensing UE to share the resource information; and

determining the sharing condition is satisfied based on the message.

9. The method of claim 1 , further comprising:

configuring a sharing time window for a pre-determined duration; and

stopping the resource availability sharing based on expiration of the pre-determined duration.

10. An apparatus for wireless communication at a sensing user equipment (UE), comprising:

means for identifying resource availability during a sensing window;

means for receiving a request to share resource information with a transmitter UE;

means for determining a sharing condition is satisfied; and

means for sharing the resource availability with the transmitter UE based on determining the sharing condition is satisfied.

11. The apparatus of claim 10 , further comprising:

means for identifying the resource availability from a resource pool configured for resource sharing; and

means for determining the sharing condition is satisfied based on the resource pool being configured for resource sharing.

12. The apparatus of claim 10 , further comprising means for determining the sharing condition is satisfied based on receiving the request to share from the transmitter UE.

13. The apparatus of claim 12 , in which the request is received via sidelink control information (SCI), a medium access control (MAC) control element (CE), or a radio resource control (RRC) signal.

14. The apparatus of claim 10 , further comprising means for receiving a stop request from the transmitter UE, in which the means for sharing terminates the resource availability sharing based on receiving the stop request.

15. The apparatus of claim 10 , further comprising means for determining the sharing condition is satisfied based on transmissions from one or both of the sensing UE or the transmitter UE satisfying a quality of service level.

16. The apparatus of claim 10 , further comprising:

means for determining a channel busy ratio (CBR) is greater than a CBR threshold; and

means for determining the sharing condition is satisfied based on the CBR being greater than the CBR threshold.

17. The apparatus of claim 10 , further comprising:

means for receiving, from a base station, a message allowing the sensing UE to share the resource information; and

means for determining the sharing condition is satisfied based on the message.

18. The apparatus of claim 10 , in which the resource availability is shared, via the means for sharing, during a sharing time window associated with a pre-determined duration.

19. An apparatus for wireless communication at a sensing user equipment (UE), comprising:

a processor;

a memory coupled with the processor; and

instructions stored in the memory and operable, when executed by the processor, to cause the apparatus:

to identify resource availability during a sensing window;

to receive a request to share resource information with a transmitter UE;

to determine a sharing condition is satisfied; and

to share the resource availability with the transmitter UE based on determining the sharing condition is satisfied.

20. The apparatus of claim 19 , in which the instructions further cause the apparatus:

to identify the resource availability from a resource pool configured for resource sharing; and

to determine the sharing condition is satisfied based on the resource pool being configured for resource sharing.

21. The apparatus of claim 19 , in which the instructions further cause the apparatus to determine the sharing condition is satisfied based on receiving the request to share from the transmitter UE.

22. The apparatus of claim 21 , in which the request is received via sidelink control information (SCI), a medium access control (MAC) control element (CE), or a radio resource control (RRC) signal.

23. The apparatus of claim 19 , in which the instructions further cause the apparatus:

to receive a stop request from the transmitter UE; and

to stop the resource availability sharing based on receiving the stop request.

24. The apparatus of claim 19 , in which the instructions further cause the apparatus to determine the sharing condition is satisfied based on transmissions from one or both of the sensing UE or the transmitter UE satisfying a quality of service level.

25. The apparatus of claim 19 , in which the instructions further cause the apparatus:

to determine a channel busy ratio (CBR) is greater than a CBR threshold; and

to determine the sharing condition is satisfied based on the CBR being greater than the CBR threshold.

26. The apparatus of claim 19 , in which the instructions further cause the apparatus:

to receive, from a base station, a message allowing the sensing UE to share the resource information; and

to determine the sharing condition is satisfied based on the message.

27. The apparatus of claim 19 , in which the instructions further cause the apparatus:

to configure a sharing time window for a pre-determined duration; and

to stop the resource availability sharing based on expiration of the pre-determined duration.

28. A non-transitory computer-readable medium having program code recorded thereon for wireless communication at a sensing user equipment (UE), the program code executed by a processor:

to identify resource availability during a sensing window;

to receive a request to share resource information with a transmitter UE;

to determine a sharing condition is satisfied; and

to share the resource availability with the transmitter UE based on determining the sharing condition is satisfied.