Indication of error vector magnitude capability

1. A first device for wireless communication, comprising:

a memory; and

one or more processors, coupled to the memory, configured to:

generate an indication of an error vector magnitude (EVM) capability of the first device, wherein the indicated EVM capability is based, at least in part, on a positioning reference signal (PRS) within a positioning frequency layer (PFL) and the indicated EVM capability corresponds to a component carrier (CC), among multiple CCs, that overlaps with one or more PFLS more than other CCs among the multiple CCs;

transmit the indication to a second device; and

receive, from the second device, a positioning reference signal (PRS) configuration that is based, at least in part, on the indicated EVM capability of the first device, wherein the first device is configured to transmit a PRS resource with repetition within a window or EVM time frame to the second device.

2. The first device of claim 1 , wherein the indicated EVM capability is based, at least in part, on a reference signal for a component carrier (CC).

3. The first device of claim 2 , wherein a spectrum of the CC covers one or more positioning frequency layers (PFLs).

4. The first device of claim 2 , wherein the indicated EVM capability applies to frequency bands of multiple PRSs within the CC or to carrier phase measurements within the CC.

5. The first device of claim 1 , wherein the first device is a base station or a user equipment and the second device is a location management function component.

6. The first device of claim 1 , wherein the first device is a user equipment and the second device is a user equipment.

7. The first device of claim 1 , wherein the first device is a base station and the second device is a user equipment.

8. The first device of claim 1 , wherein the indicated EVM capability is based, at least in part, on an EVM average over a measurement interval that exceeds 10 milliseconds.

9. The first device of claim 8 , wherein the one or more processors are configured to transmit an indication of the measurement interval.

10. The first device of claim 1 , wherein the indicated EVM capability is based, at least in part, on one or more of an amplitude or a phase estimation over a measurement interval that exceeds 10 milliseconds.

11. The first device of claim 1 , wherein the one or more processors are configured to transmit a phase coherence capability of the first device to the second device.

12. The first device of claim 11 , wherein the phase coherence capability indicates a window during which phase coherence is maintained, and wherein a size of the window is based, at least in part, on a EVM measurement interval.

13. The first device of claim 12 , wherein the phase coherence capability indicates a periodicity between windows.

14. The first device of claim 11 , wherein the phase coherence capability indicates a PRS resource.

15. The first device of claim 11 , wherein the phase coherence capability indicates an uncertainty level or an accuracy level.

16. The first device of claim 11 , wherein the phase coherence capability includes an expectation of a phase coherence for a specified PRS resource from the first device.

17. A second device for wireless communication, comprising: a memory; and one or more processors, coupled to the memory, configured to:

receive, from a first device, an indication of an error vector magnitude (EVM) capability of the first device, wherein the indicated EVM capability is based, at least in part, on a positioning reference signal (PRS) within a positioning frequency layer (PFL) and the indicated EVM capability corresponds to a component carrier (CC), among multiple CCs, that overlaps with one or more PFLS more than other CCs among the multiple CCs;

generate a positioning reference signal (PRS) configuration that is based, at least in part, on the indicated EVM capability of the first device;

transmit the PRS configuration to the first device; and

receive a PRS resource with repetition within a window or EVM time frame from the first device.

18. The second device of claim 17 , wherein the indicated EVM capability is based, at least in part, on a reference signal for a component carrier (CC).

19. The second device of claim 18 , wherein a spectrum of the CC covers one or more positioning frequency layers (PFLs).

20. The second device of claim 18 , wherein the indicated EVM capability applies to frequency bands of multiple PRSs within the CC or to carrier phase measurements within the CC.

21. The second device of claim 17 , wherein the one or more processors are configured to transmit, to the first device, a request for the indicated EVM capability of the first device.

22. The second device of claim 17 , wherein the first device is a base station or a user equipment and the second device is a location management function component.

23. The second device of claim 17 , wherein the first device is a user equipment and the second device is a user equipment.

24. The second device of claim 17 , wherein the first device is a base station and the second device is a user equipment.

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

generating an indication of an error vector magnitude (EVM) capability of the first device, wherein the indicated EVM capability is based, at least in part, on a positioning reference signal PRS within a positioning frequency layer (PFL) and the indicated EVM capability corresponds to a component carrier (CC), among multiple CCs, that overlaps with one or more PFLS more than other CCs among the multiple CCs;

transmitting the indication to a second device; and

receiving, from the second device, a positioning reference signal (PRS) configuration that is based, at least in part, on the indicated EVM capability of the first device, wherein the first device is configured to transmit a PRS resource with repetition within a window or EVM time frame to the second device.

26. A method of wireless communication performed by a second device, comprising:

receiving, from a first device, an indication of an error vector magnitude (EVM) capability of the first device, wherein the indicated EVM capability is based, at least in part, on a positioning reference signal PRS within a positioning frequency layer (PFL) and the indicated EVM capability corresponds to a component carrier (CC), among multiple CCs, that overlaps with one or more PFLS more than other CCs among the multiple CCs;

generating a positioning reference signal (PRS) configuration that is based, at least in part, on the indicated EVM capability of the first device;

transmitting the PRS configuration to the first device; and

receiving a PRS resource with repetition within a window or EVM time frame from the first device.