Granted Patent B2

US 12,313,759 · App. 17/813,279 · Granted May 27, 2025

Inventors: Marwen Zorgui (San Diego, CA); Srinivas Yerramalli (San Diego, CA); Taesang Yoo (San Diego, CA)

Assignee: QUALCOMM Incorporated

G01S5/02521G01S5/0263G01S5/0244G01S5/0278G01S19/45G01S19/48

Abstract

Claims (139)

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

determining that a positioning model error instance has occurred during a positioning occasion based on at least one of

a position uncertainty associated with a first position estimate satisfying positioning uncertainty error criteria, wherein the first position estimate is obtained during the positioning occasion by applying a first positioning model to radio frequency fingerprint (RFFP) measurements,

a positioning mismatch between the first position estimate of the UE and a second position estimate of the UE satisfying position mismatch error criteria, wherein the second position estimate of the UE is obtained during the positioning occasion by performing a positioning technique that does not use the first positioning model, or

any combination thereof; and

determining that the first positioning model has failed based on a number of positioning model error instances satisfying positioning model failure criteria.

2. The method of claim 1 , further comprising:

in response to determining that the number of positioning model error instances satisfies the positioning model failure criteria,

deactivating the first positioning model, and

activating a fallback positioning technique that does not use the first positioning model in further positioning occasions.

3. The method of claim 2 , further comprising at least one of:

receiving an indication of a type of positioning technique to be used as the fallback positioning technique;

receiving one or more parameters of the fallback positioning technique;

configuring the UE with the type of positioning technique used for the fallback positioning technique based on a pre-configuration of the type of positioning technique to be used for the fallback positioning technique at the UE;

configuring the UE with the one or more parameters of the fallback positioning technique based on a pre-configuration of the one or more parameters of the fallback positioning technique at the UE; or

any combination thereof.

4. The method of claim 3 , wherein:

the type of positioning technique used for the fallback positioning technique is received via a first set of LTE Positioning Protocol (LPP) messages;

the one or more parameters of the fallback positioning technique are received via a second set of LPP messages; or

any combination thereof.

5. The method of claim 2 , wherein the fallback positioning technique comprises at least one of:

a further RFFP technique using a second positioning model;

a Global Navigation Satellite System (GNSS) positioning technique;

a New Radio (NR) positioning technique; or

any combination thereof.

6. The method of claim 2 , further comprising:

reactivating the first positioning model based on at least one of

expiration of a time threshold since deactivating the first positioning model,

expiration of a time threshold since activating the fallback positioning technique,

using the fallback positioning technique for a threshold number of positioning occasions,

receiving a request to reactivate the first positioning model, or

any combination thereof.

7. The method of claim 1 , wherein the positioning model failure criteria comprises at least one of:

a total number of positioning model error instances;

a number of positioning model error instances occurring over a time duration; or

any combination thereof.

8. The method of claim 1 , wherein the positioning uncertainty error criteria comprises:

the position uncertainty associated with the first position estimate exceeding a position uncertainty threshold.

9. The method of claim 1 , wherein the position mismatch error criteria comprises:

a position difference between the first position estimate and the second position estimate exceeding a position difference threshold.

10. The method of claim 1 , further comprising at least one of:

receiving one or more parameters indicating the positioning model failure criteria;

configuring the one or more parameters of the positioning model failure criteria based on a pre-configuration of the one or more parameters of the positioning model failure criteria at the UE; or

a combination thereof.

11. The method of claim 10 , wherein:

the one or more parameters indicating the positioning model failure criteria are received via a set of Long-Term Evolution Positioning Protocol (LPP) messages.

12. The method of claim 1 , further comprising:

transmitting a model failure report indicating that the first positioning model has failed.

13. The method of claim 12 , wherein:

the model failure report is transmitted in response to at least one of

determining that the number of positioning model error instances satisfy the positioning model failure criteria;

receiving a model failure report request; or

any combination thereof.

14. The method of claim 13 , wherein the model failure report indicates at least one of:

a first model identifier associated with the first positioning model;

a second model identifier associated with a second positioning model applied to the RFFP measurements to obtain the second position estimate;

an identification of one or more positioning techniques used to obtain the second position estimate;

one or more timestamps associated with one or more positioning model error instances of the positioning model error instances;

a time span associated with determining the one or more positioning model error instances;

one or more position uncertainty error values associated with the one or more positioning model error instances;

channel condition parameters associated with the one or more positioning model error instances; or

any combination thereof.

15. 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 a positioning model error instance has occurred during a positioning occasion based on at least one of

a position uncertainty associated with a first position estimate satisfying positioning uncertainty error criteria, wherein the first position estimate is obtained during the positioning occasion by applying a first positioning model to radio frequency fingerprint (RFFP) measurements,

a positioning mismatch between the first position estimate of the UE and a second position estimate of the UE satisfying position mismatch error criteria, wherein the second position estimate of the UE is obtained during the positioning occasion by performing a positioning technique that does not use the first positioning model, or

any combination thereof; and

determine that the first positioning model has failed based on a number of positioning model error instances satisfying positioning model failure criteria.

16. The UE of claim 15 , wherein the at least one processor is further configured to:

in response to determining that the number of positioning model error instances satisfies the positioning model failure criteria,

deactivate the first positioning model, and

activate a fallback positioning technique that does not use the first positioning model in further positioning occasions.

17. The UE of claim 16 , wherein the at least one processor is further configured to perform at least one operation including:

receiving, via the at least one transceiver, an indication of a type of positioning technique to be used as the fallback positioning technique;

receiving, via the at least one transceiver, one or more parameters of the fallback positioning technique;

configuring the UE with the type of positioning technique used for the fallback positioning technique based on a pre-configuration of the type of positioning technique to be used for the fallback positioning technique at the UE;

configuring the UE with the one or more parameters of the fallback positioning technique based on a pre-configuration of the one or more parameters of the fallback positioning technique at the UE; or

any combination thereof.

18. The UE of claim 17 , wherein:

the type of positioning technique used for the fallback positioning technique is received via a first set of LTE Positioning Protocol (LPP) messages;

the one or more parameters of the fallback positioning technique are received via a second set of LPP messages; or

any combination thereof.

19. The UE of claim 16 , wherein the fallback positioning technique comprises at least one of:

a further RFFP technique using a second positioning model;

a Global Navigation Satellite System (GNSS) positioning technique;

a New Radio (NR) positioning technique; or

any combination thereof.

20. The UE of claim 16 , wherein the at least one processor is further configured to:

reactivate the first positioning model based on at least one of

expiration of a time threshold since deactivating the first positioning model,

expiration of a time threshold since activating the fallback positioning technique,

using the fallback positioning technique for a threshold number of positioning occasions,

receiving, via the at least one transceiver, a request to reactivate the first positioning model, or

any combination thereof.

21. The UE of claim 15 , wherein the positioning model failure criteria comprises at least one of:

a total number of positioning model error instances;

a number of positioning model error instances occurring over a time duration; or

any combination thereof.

22. The UE of claim 15 , wherein the positioning uncertainty error criteria comprises:

the position uncertainty associated with the first position estimate exceeding a position uncertainty threshold.

23. The UE of claim 15 , wherein the position mismatch error criteria comprises:

a position difference between the first position estimate and the second position estimate exceeding a position difference threshold.

24. The UE of claim 15 , wherein the at least one processor is further configured to at least:

receive, via the at least one transceiver, one or more parameters indicating the positioning model failure criteria;

configure the one or more parameters of the positioning model failure criteria based on a pre-configuration of the one or more parameters of the positioning model failure criteria at the UE; or

a combination thereof.

25. The UE of claim 24 , wherein:

the one or more parameters indicating the positioning model failure criteria are received via a set of Long-Term Evolution Positioning Protocol (LPP) messages.

26. The UE of claim 15 , wherein the at least one processor is further configured to:

transmit, via the at least one transceiver, a model failure report indicating that the first positioning model has failed.

27. The UE of claim 26 , wherein:

the model failure report is transmitted in response to at least one of

determining that the number of positioning model error instances satisfy the positioning model failure criteria;

receiving a model failure report request; or

any combination thereof.

28. The UE of claim 27 , wherein the model failure report indicates at least one of:

a first model identifier associated with the first positioning model;

a second model identifier associated with a second positioning model applied to the RFFP measurements to obtain the second position estimate;

an identification of one or more positioning techniques used to obtain the second position estimate;

one or more timestamps associated with one or more positioning model error instances of the positioning model error instances;

a time span associated with determining the one or more positioning model error instances;

one or more position uncertainty error values associated with the one or more positioning model error instances;

channel condition parameters associated with the one or more positioning model error instances; or

any combination thereof.

29. A user equipment (UE), comprising:

means for determining that a positioning model error instance has occurred during a positioning occasion based on at least one of

a position uncertainty associated with a first position estimate satisfying positioning uncertainty error criteria, wherein the first position estimate is obtained during the positioning occasion by applying a first positioning model to radio frequency fingerprint (RFFP) measurements,

a positioning mismatch between the first position estimate of the UE and a second position estimate of the UE satisfying position mismatch error criteria, wherein the second position estimate of the UE is obtained during the positioning occasion by performing a positioning technique that does not use the first positioning model, or

any combination thereof; and

means for determining that the first positioning model has failed based on a number of positioning model error instances satisfying positioning model failure criteria.

30. A non-transitory computer-readable medium storing computer-executable instructions that, when executed by a user equipment (UE), cause the UE to:

determine that a positioning model error instance has occurred during a positioning occasion based on at least one of

a position uncertainty associated with a first position estimate satisfying positioning uncertainty error criteria, wherein the first position estimate is obtained during the positioning occasion by applying a first positioning model to radio frequency fingerprint (RFFP) measurements,

a positioning mismatch between the first position estimate of the UE and a second position estimate of the UE satisfying position mismatch error criteria, wherein the second position estimate of the UE is obtained during the positioning occasion by performing a positioning technique that does not use the first positioning model, or

any combination thereof; and

determine that the first positioning model has failed based on a number of positioning model error instances satisfying positioning model failure criteria.

Assignments (1)

Continuity (1)

References Cited (14)

Cited By (2)

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