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1. WO2020223307 - APERIODIC AND CROSS COMPONENT CARRIER POSITIONING REFERENCE SIGNALS

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

CLAIMS

What is claimed is:

1. An apparatus for wireless communications by a user equipment (UE), comprising:

means for receiving a dynamic trigger that indicates that the UE is to monitor for a downlink positioning reference signal from a transmission/reception point;

means for generating a timing measurement for the downlink positioning reference signal based at least in part on the dynamic trigger; and

means for transmitting a measurement report that indicates the timing measurement.

2. The apparatus of claim 1, further comprising:

means for receiving the dynamic trigger that is a medium access control (MAC) control element (CE), downlink control information, or both, that indicates that the UE is to monitor for the downlink positioning reference signal.

3. The apparatus of claim 1, further comprising:

means for receiving the dynamic trigger that indicates to monitor for a respective downlink positioning reference signal from each transmission/reception point of a plurality of transmission/reception point.

4. The apparatus of claim 3, further comprising:

means for generating a respective timing measurement for the respective downlink positioning reference signals, wherein the measurement report indicates at least one of the respective timing measurements.

5. The apparatus of claim 1, further comprising:

means for receiving the dynamic trigger that indicates a positioning reference signal occasion to monitor for the downlink positioning reference signal.

6. The apparatus of claim 5, further comprising:

means for receiving the dynamic trigger that indicates that a duration of the positioning reference signal occasion is at least one transmission time interval.

7. The apparatus of claim 6, wherein each transmission time interval of the at least one transmission time interval is a symbol period, a mini-slot, or a slot.

8. The apparatus of claim 1, further comprising:

means for receiving the dynamic trigger that indicates a defined number of positioning reference signal occasions to monitor for the downlink positioning reference signal.

9. The apparatus of claim 8, further comprising:

means for de-activating monitoring for the downlink positioning reference signal subsequent to a last positioning reference signal occasion of the defined number of positioning reference signal occasions.

10. The apparatus of claim 1, further comprising:

means for transmitting a trigger request to the transmission/reception point, wherein the dynamic trigger is received based at least in part on the trigger request.

11. The apparatus of claim 1, further comprising:

means for receiving the dynamic trigger that indicates a muting pattern; and means for determining to monitor for the downlink positioning reference signal during a downlink positioning reference signal occasion based at least in part on the muting pattern.

12. The apparatus of claim 1, further comprising:

means for receiving the dynamic trigger that indicates a muting pattern; and means for determining to skip monitoring for the downlink positioning reference signal during a downlink positioning reference signal occasion based at least in part on the muting pattern.

13. An apparatus for wireless communications by a user equipment (UE), comprising:

means for transmitting a capability indicator that indicates the UE is capable of maintaining phase coherence for a positioning reference signal that spans multiple component carriers;

means for receiving control signaling indicating a plurality of component carriers on which the positioning reference signal is phase coherent based at least in part on the capability indicator;

means for generating a timing measurement for the positioning reference signal that spans the plurality of component carriers based at least in part on the control signaling; and

means for transmitting a measurement report that indicates the timing measurement.

14. The apparatus of claim 13, further comprising:

means for transmitting the capability indicator that indicates an event under which the UE is capable of maintaining phase coherence for the positioning reference signal that spans multiple component carriers.

15. The apparatus of claim 14, wherein the event is a bandwidth retuning event, a downlink to uplink transition event, an uplink to downlink transition event, a change in transmission power event, a change in assigned resource block event, or any combination thereof.

16. The apparatus of claim 13, further comprising:

means for transmitting the capability indicator that indicates an event under which the UE is not capable of maintaining phase coherence for the positioning reference signal that spans multiple component carriers.

17. The apparatus of claim 13, further comprising:

means for transmitting the capability indicator that indicates a partial coherent processing capability.

18. The apparatus of claim 17, further comprising:

means for identifying at least a partial coherence loss for the positioning reference signal within at least one component carrier of the plurality of component carriers;

means for estimating a phase offset for the positioning reference signal within the at least one component carrier; and

means for correcting for the partial coherence loss based at least in part on the phase offset, wherein the timing measurement for the positioning reference signal that spans the plurality of component carriers is generated based at least in part on the correcting.

19. The apparatus of claim 13, wherein the capability indicator indicates one or more of a band specific capability, a transmission capability, a reception capability, or any combination thereof.

20. The apparatus of claim 13, further comprising:

means for identifying that a guard band is reduced or removed for the positioning reference signal that spans the plurality of component carriers on a same transmission time interval with intra-band carrier aggregation.

21. The apparatus of claim 20, wherein the means for identifying comprises:

means for receiving configuration signaling or a guard band indicator indicating that the guard band is reduced or removed.

22. An apparatus for wireless communications by a user equipment (UE), comprising:

means for transmitting a capability indicator that indicates the UE is capable of maintaining phase coherence for a positioning reference signal that spans multiple component carriers;

means for receiving control signaling indicating a plurality of component carriers on which the positioning reference signal is phase coherent based at least in part on the capability indicator; and

means for transmitting the positioning reference signal that spans the plurality of component carriers based at least in part on the control signaling.

23. The apparatus of claim 22, further comprising:

means for receiving configuration signaling indicating to use an inter component carrier guard band for transmitting the positioning reference signal, wherein the positioning reference signal that spans the plurality of component carriers is transmitted within the guard band.

24. An apparatus for wireless communications by a transmission/reception point, comprising:

means for transmitting a dynamic trigger that indicates that a user equipment (UE) is to monitor for a downlink positioning reference signal from a transmission/reception point; and

means for receiving a measurement report that indicates a timing measurement for the downlink positioning reference signal.

25. The apparatus of claim 24, further comprising:

means for transmitting the dynamic trigger that is a medium access control (MAC) control element (CE), downlink control information, or both, that indicates that the UE is to monitor for the downlink positioning reference signal.

26. The apparatus of claim 24, further comprising:

means for transmitting a downlink positioning reference signal configuration to a second transmission/reception point to coordinate transmission of the downlink positioning reference signal with transmission of a second downlink positioning reference signal by the second transmission/reception point.

27. The apparatus of claim 24, further comprising:

means for transmitting the dynamic trigger that indicates to monitor for a respective downlink positioning reference signal from each transmission/reception point of a plurality of transmission/reception points.

28. The apparatus of claim 24, further comprising:

means for transmitting the dynamic trigger that indicates a positioning reference signal occasion to monitor for the downlink positioning reference signal.

29. The apparatus of claim 24, further comprising:

means for transmitting the dynamic trigger that indicates a defined number of positioning reference signal occasions to monitor for the downlink positioning reference signal.

30. The apparatus of claim 24, further comprising:

2 means for receiving a trigger request from the UE, wherein the dynamic

3 trigger is transmitted based at least in part on the trigger request.