Positioning calibration with reference point

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

determining that the UE will be located within a calibration region at a specific time or during a specific time range;

sending, to a network entity, a request to schedule a positioning reference signal (PRS) at the specific time or during the specific time range;

determining that the UE is or will be at a location within a calibration region; and

reporting, to the network entity, location information, the location information being associated with the location within the calibration region.

2. The method of claim 1 , wherein the location information comprises a geographical coordinate or position, a range of geographical coordinates or positions, a distance or a range of distances, an angle or a range of angles, a time stamp or range of timestamps, a transmit (TX) or receive (RX) calibration error at the UE, an uncertainty associated with one or more of the above, or combinations thereof.

3. The method of claim 2 , wherein the location information comprises a calibration error or uncertainty that applies to one item or a calibration error or uncertainty that applies to several items.

4. The method of claim 1 , wherein the location information comprises an indication that the location was derived from detection of a position of the UE within the calibration region instead of from a reference signal measurement.

5. The method of claim 1 , wherein the location information comprises a measured value associated with a transmitter of a reference signal.

6. The method of claim 5 , wherein the measured value associated with the transmitter of the reference signal comprises a reference signal time difference (RSTD), a time of arrival (TOA), a round trip time (RTT), an offset time between a first time, at which the UE arrives at the location within the calibration region, and a second time, at which the UE receives the reference signal, or combinations thereof.

7. The method of claim 5 , wherein the location information comprises an indicator that the measured value associated with the transmitter of the reference signal includes a correction from previously received calibration error information.

8. The method of claim 1 , further comprising:

obtaining calibration error information; and

using the calibration error information to correct a position calculation.

9. The method of claim 8 , wherein the calibration error information comprises:

a calibration error or range of errors for a specified reference signal time difference;

a time of arrival for a specified positioning reference signal resource;

a specified round trip time;

or combinations thereof.

10. The method of claim 8 , wherein obtaining the calibration error information comprises receiving the calibration error information from the network entity.

11. The method of claim 8 , wherein obtaining the calibration error information comprises calculating the calibration error information based on location information associated with the location within the calibration region.

12. The method of claim 11 , wherein calculating the calibration error information based on the location information associated with the location within the calibration region comprises calculating the calibration error information based on:

a geographical coordinate or position;

a range of geographical coordinates or positions;

a distance or a range of distances;

an angle or a range of angles;

a time stamp or range of timestamps;

a transmit (TX) or receive (RX) calibration error at the UE;

an uncertainty associated with one or more of the above;

or combinations thereof.

13. The method of claim 11 , wherein calculating the calibration error information comprises calculating the calibration error information based on a measured value associated with a transmitter of a reference signal.

14. The method of claim 8 , further comprising reporting the calibration error information to the network entity, sending the calibration error information directly or indirectly to another UE, or a combination thereof.

15. The method of claim 1 , wherein sending the request to schedule the PRS comprises sending:

a request to schedule an on-demand synchronous, periodic, or asynchronous PRS;

a request to reschedule an existing PRS configuration;

a request for a new time offset;

a request for a new PRS timing pattern;

a request for a new PRS muting pattern; or

a combination thereof.

16. The method of claim 1 , wherein the request comprises information indicating a purpose of the request, a specific PRS resource ID, a specific PRS resource set ID, a specific cell ID, a specific transmission/reception point (TRP) ID, or combinations thereof.

17. The method of claim 1 , further comprising sending, to a serving base station, a request to change a discontinuous reception (DRX) configuration and related PRS measurement or transmission rules.

18. A user equipment (UE), comprising:

a memory;

at least one transceiver; and

at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to:

determine that the UE will be located within a calibration region at a specific time or during a specific time range;

send, to a network entity, a request to schedule a positioning reference signal (PRS) at the specific time or during the specific time range;

determine that the UE is or will be at a location within a calibration region; and

report, to the network entity, location information, the location information being associated with the location within the calibration region.