Granted Patent B2

US 12,356,233 · App. 17/997,916 · Granted Jul 8, 2025

Inventors: Alexandros Manolakos (Escondido, CA); Muhammad Sayed Khairy Abdelghaffar (San Jose, CA); Yu Zhang (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04W24/10H04B17/309

Abstract

Claims (78)

1. A method for wireless communications at a user equipment (UE), comprising:

receiving a measurement configuration for estimating one or more Doppler shift parameters associated with a set of reference signals transmitted from one or more nodes;

identifying, based on the measurement configuration, a measurement restriction parameter that indicates a number of time durations over which the UE is configured to measure for estimating the one or more Doppler shift parameters, wherein each time duration of the number of time durations comprises a plurality of the set of reference signals; and

transmitting a measurement report indicating an estimated one or more Doppler shift parameters associated with the set of reference signals to the one or more nodes in accordance with the measurement restriction parameter.

2. The method of claim 1 , further comprising:

identifying a measurement accuracy for estimating the one or more Doppler shift parameters, wherein the measurement accuracy is based at least in part on the measurement restriction parameter.

3. The method of claim 2 , wherein identifying the measurement accuracy further comprises:

determining the measurement restriction parameter indicates a number of time durations, wherein the measurement accuracy is based at least in part on whether the number of time durations comprises more than a single time duration.

4. The method of claim 1 , further comprising:

identifying a measurement accuracy for estimating the one or more Doppler shift parameters based at least in part on a transmission timing structure for the set of reference signals.

5. The method of claim 1 , further comprising:

identifying a measurement accuracy for estimating the one or more Doppler shift parameters based at least in part on a reference signal type associated with the set of reference signals.

6. The method of claim 1 , further comprising:

determining the number of time durations comprises a single time duration corresponding to a single configured group of the set of reference signals; and

determining the estimated one or more Doppler shift parameters based at least in part on a measurement over the single time duration of a Doppler shift associated with the single configured group of the set of reference signals.

7. The method of claim 1 , further comprising:

determining the number of time durations comprises a set of multiple time durations corresponding to a plurality of configured groups of the set of reference signals;

estimating a Doppler shift value based at least in part on a measurement over each time duration of the set of multiple time durations; and

determining the estimated one or more Doppler shift parameters based at least in part on averaging Doppler shift values associated with the set of multiple time durations.

8. The method of claim 1 , wherein the measurement restriction parameter indicates one or more slots over which the UE is configured to measure for estimating the one or more Doppler shift parameters.

9. The method of claim 1 , further comprising:

identifying a range of resolvable Doppler shift values; and

estimating the one or more Doppler shift parameters in accordance with the range of resolvable Doppler shift values.

10. The method of claim 9 , wherein identifying the range of resolvable Doppler shift values further comprises:

identifying a time-domain gap between consecutive samples of the set of reference signals.

11. The method of claim 9 , wherein identifying the range of resolvable Doppler shift values further comprises:

receiving a downlink message that indicates the range of resolvable Doppler shift values.

12. The method of claim 9 , further comprising:

generating the measurement report comprising a first indication of the estimated one or more Doppler shift parameters and a second indication of the range of resolvable Doppler shift values.

13. The method of claim 9 , further comprising:

identifying a number of bits allocated for reporting the one or more Doppler shift parameters; and

determining a granularity for reporting the one or more Doppler shift parameters based at least in part on the range of resolvable Doppler shift values and the number of bits.

14. The method of claim 9 , further comprising:

determining a granularity for reporting the one or more Doppler shift parameters based at least in part on the number of time durations over which the UE is configured to use for estimating the one or more Doppler shift parameters.

15. The method of claim 1 , wherein transmitting the measurement report further comprises:

identifying a set of bins associated with one or more Doppler shift values;

identifying a numerical value representative of the estimated one or more Doppler shift parameters; and

allocating the estimated one or more Doppler shift parameters to a bin of the set of bins based at least in part on the numerical value, wherein a first bin is associated with Doppler shift values that are less than a threshold value, and a second bin associated with different Doppler shift values that exceed the threshold value.

16. The method of claim 15 , wherein the estimated one or more Doppler shift parameters are quantized based at least in part on the numerical value.

17. The method of claim 1 , wherein transmitting the measurement report further comprises:

generating a bit that indicates the estimated one or more Doppler shift parameters as having a positive or negative value.

18. The method of claim 1 , further comprising:

identifying a time-domain overlap between a first channel state information report comprising the measurement report and a second channel state information report; and

determining a prioritization for the first channel state information report and the second channel state information report based at least in part on a composition of the first channel state information report and a composition of the second channel state information report.

19. The method of claim 18 , wherein the composition comprises at least one of beam reporting information, Doppler reporting information, or channel quality information reporting.

20. The method of claim 18 , wherein the prioritization is further based at least in part on a reference signal identifier, a control resource set identifier, or a quasi-co location information identifier associated with the measurement report.

21. The method of claim 1 , wherein the number of time durations correspond to one or more slots for monitoring a group of configured reference signals.

22. The method of claim 1 , wherein transmitting the measurement report to the one or more nodes further comprises:

generating a first indicator associated with a first Doppler shift estimation parameter for a first transmission reception point (TRP);

generating a second indicator associated with a second Doppler shift estimation parameter for a second TRP; and

transmitting the measurement report comprising the first indicator and the first Doppler shift estimation parameter and the second indicator and the second Doppler shift estimation parameter.

23. The method of claim 22 , wherein the first indicator and the second indicator comprise different control resource set pool indices or transmission configuration indicator states.

24. A method for wireless communications at a base station, comprising:

identifying a measurement restriction parameter that indicates a number of time durations over which a user equipment (UE) is configured to measure for estimating one or more Doppler shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each time duration of the number of time durations comprises a plurality of the set of reference signals;

transmitting, to the UE, a measurement configuration message comprising the measurement restriction parameter for estimating the one or more Doppler shift parameters; and

receiving, from the UE, a measurement report indicating an estimated one or more Doppler shift parameters associated with the set of reference signals in accordance with the measurement restriction parameter.

25. The method of claim 24 , further comprising:

identifying a measurement accuracy for estimating the one or more Doppler shift parameters, wherein the measurement accuracy is based at least in part on whether the measurement restriction parameter comprises more than a single time duration.

26. The method of claim 24 , further comprising:

identifying a measurement accuracy for estimating the one or more Doppler shift parameters based at least in part on a transmission timing structure for the set of reference signals or a reference signal type associated with the set of reference signals.

27. The method of claim 24 , further comprising:

determining the number of time durations comprises a single time duration corresponding to a single configured group of the set of reference signals, wherein the measurement report is based at least in part on a measurement over the single time duration of the one or more Doppler shift parameters associated with the single configured group of the set of reference signals.

28. The method of claim 24 , further comprising:

determining the number of time durations comprises a set of multiple time durations corresponding to a plurality of configured groups of the set of reference signals, wherein the measurement report comprises a Doppler shift value that is estimated based at least in part on an average measurement over each time duration of the set of multiple time durations.

29. An apparatus for wireless communications at a user equipment (UE), comprising:

a processor,

memory coupled with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

receive a measurement configuration for estimating one or more Doppler shift parameters associated with a set of reference signals transmitted from one or more nodes;

identify, based on the measurement configuration, a measurement restriction parameter that indicates a number of time durations over which the UE is configured to measure for estimating the one or more Doppler shift parameters, wherein each time duration of the number of time durations comprises a plurality of the set of reference signals; and

transmit a measurement report indicating an estimated one or more Doppler shift parameters associated with the set of reference signals to the one or more nodes in accordance with the measurement restriction parameter.

30. An apparatus for wireless communications at a base station, comprising:

a processor,

memory coupled with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

identify a measurement restriction parameter that indicates a number of time durations over which a user equipment (UE) is configured to measure for estimating one or more Doppler shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each time duration of the number of time durations comprises a plurality of the set of reference signals;

transmit, to the UE, a measurement configuration message comprising the measurement restriction parameter for estimating the one or more Doppler shift parameters; and

receive, from the UE, a measurement report indicating an estimated one or more Doppler shift parameters associated with the set of reference signals in accordance with the measurement restriction parameter.

Assignments (2)

Priority Claims (1)

Continuity (1)

References Cited (26)