Method to determine the quality of civic address produced by reverse geocoder

Patent metadata

Field	Value
Publication number	US-11668784-B2
Application number	US-202117519814-A
Country	US
Kind code	B2
Filing date	Nov 5, 2021
Priority date	Nov 5, 2021
Publication date	Jun 6, 2023
Grant date	Jun 6, 2023

Abstract

Systems and methods are provided for determining the quality of a civic address produced by a reverse geocoder, utilizing the uncertainty of a geodetic location and a distance between the geodetic location and a geocoded location (i.e., a civic address) determined by the reverse geocoder. Upon receiving a request by a PSAP for a civic address corresponding to a UE initiating a call for emergency services, a node initially identifies a geodetic location of the UE and an uncertainty of the geodetic location. The node initiates an API call to a reverse geocoder API. The node receives a geocoded location corresponding to the geodetic location and compares the geocoded location to the geodetic location to determine a distance between them. Based on the uncertainty of the geodetic location and the distance between the geodetic location and the geocoded location, a quality of the civic address is determined.

First claim

What is claimed is:

1. A method for determining the quality of civic address produced by reverse geocoder, the method comprising:
receiving, at a node, a request by a public safety answer point (PSAP) for a civic address corresponding to user equipment (UE) initiating a call for emergency services;
identifying, by the node, a geodetic location having an uncertainty;
initiating, by the node, an application programming interface (API) call to a reverse geocoder API, the API call including the geodetic location;
receiving, by the node, a geocoded location corresponding to the geodetic location;
comparing, by the node, the geocoded location to the geodetic location to determine a distance between the geodetic location and the geocoded location;
based on the uncertainty of the geodetic location and the distance between the geodetic location and the geocoded location, determining a quality of the civic address; and
based on the quality of the civic address satisfying a configurable threshold, providing the civic address to the PSAP, the civic address being the geocoded location.

2. The method of claim 1 , further comprising based on the quality of the civic address not satisfying a configurable threshold, determining the civic address is not representative of the geodetic location.

3. The method of claim 1 , wherein when the uncertainty is low and the distance is within a certain range, the quality satisfies the configurable threshold.

4. The method of claim 1 , wherein when the uncertainty is low and the distance is not within a certain range, the quality does not satisfy the configurable threshold.

5. The method of claim 1 , wherein when the uncertainty is high and the distance is within a certain range, the quality does not satisfy the configurable threshold.

6. The method of claim 1 , wherein when the uncertainty is high and the distance is not within a certain range, the quality does not satisfy the configurable threshold.

7. The method of claim 1 , further comprising determining the uncertainty is low when it is 10% or less.

8. The method of claim 1 , further comprising determining the uncertainty is high when it is greater than 10%.

9. One or more non-transitory computer-readable media having computer-executable instructions embodied thereon that, when executed by at least one computing device, cause the computing device to perform operations for determining the quality of civic address produced by reverse geocoder, the operations comprising:
receiving, at a node, a request by a public safety answer point (PSAP) for a civic address corresponding to user equipment (UE) initiating a call for emergency services;
identifying, by the node, a geodetic location having an uncertainty;
initiating, by the node, an application programming interface (API) call to a reverse geocoder API, the API call including the geodetic location;
receiving, by the node, a geocoded location corresponding to the geodetic location;
comparing, by the node, the geocoded location to the geodetic location to determine a distance between the geodetic location and the geocoded location;
based on the uncertainty of the geodetic location and the distance between the geodetic location and the geocoded location, determining a quality of the civic address; and
based on the quality of the civic address satisfying a configurable threshold, providing the civic address to the PSAP, the civic address being the geocoded location.

10. The one or more non-transitory computer-readable media of claim 9 , further comprising based on the quality of the civic address not satisfying a configurable threshold, determining the civic address is not representative of the geodetic location.

11. The one or more non-transitory computer-readable media of claim 9 , wherein when the uncertainty is low and the distance is within a certain range, the quality satisfies the configurable threshold.

12. The one or more non-transitory computer-readable media of claim 9 , wherein when the uncertainty is low and the distance is not within a certain range, the quality does not satisfy the configurable threshold.

13. The one or more non-transitory computer-readable media of claim 9 , wherein when the uncertainty is high and the distance is within a certain range, the quality does not satisfy the configurable threshold.

14. The one or more non-transitory computer-readable media of claim 9 , wherein when the uncertainty is high and the distance is not within a certain range, the quality does not satisfy the configurable threshold.

15. The one or more non-transitory computer-readable media of claim 9 , further comprising determining the uncertainty is low when it is 10% or less.

16. The one or more non-transitory computer-readable media of claim 9 , further comprising determining the uncertainty is high when it is greater than 10%.

17. A system for determining the quality of civic address produced by reverse geocode, the system comprising:
a user equipment (UE); and
a node configured to:
receive a request by a public safety answer point (PSAP) for a civic address corresponding to the UE initiating a call for emergency services;
identify a geodetic location having an uncertainty;
initiate an application programming interface (API) call to a reverse geocoder API, the API call including the geodetic location;
receive a geocoded location corresponding to the geodetic location;
compare the geocoded location to the geodetic location to determine a distance between the geodetic location and the geocoded location;
based on the uncertainty of the geodetic location and the distance between the geodetic location and the geocoded location, determine a quality of the ciVic address; and
based on the quality of the civic address satisfying a configurable threshold, provide the ciVic address to the PSAP, the civic address being the geocoded location.

18. The system of claim 17 , wherein when the uncertainty is low and the distance is within a certain range, the quality satisfies the configurable threshold.

19. The system of claim 17 , wherein when the uncertainty is low and the distance is not within a certain range, when the uncertainty is high and the distance is within a certain range, or when the uncertainty is high and the distance is not within a certain range, the quality does not satisfy the configurable threshold.

20. The system of claim 17 , wherein the uncertainty is low if it is 10% or less and the uncertainty is high if it is greater than 10%.

Assignees

• T Mobile Innovations Llc

Inventors

• Lan Wei-Ming

Classifications

• G01S5/0236 Primary

  Assistance data, e.g. base station almanac · CPC title

• H04W76/50

  for emergency connections · CPC title

• H04M3/42357

  where the information is provided to a monitoring entity such as a potential calling party or a call processing server · CPC title

• H04B17/27 Primary

  for locating or positioning the transmitter · CPC title

• H04W4/022

  with dynamic range variability · CPC title