Determining a location context of a device

Patent metadata

Field	Value
Publication number	US-11509733-B2
Application number	US-202017002543-A
Country	US
Kind code	B2
Filing date	Aug 25, 2020
Priority date	Aug 29, 2019
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

Disclosed are a method and devices for determining a location context of a first device. The method includes receiving, at the first device, a wireless signal from a second device, determining a proximity of the first device to the second device based on the wireless signal, and determining an area inference based on characteristics of the second device and based on the determined proximity of the first device to the second device. The area inference includes a category of the area. The method also includes assigning an area label to the first device based on the area inference, and providing the area label to an application to enhance the performance of the application.

First claim

What is claimed is:

1. A method of determining a location context of a first device, the method comprising:
receiving, at the first device, a wireless signal from a second device;
determining a proximity of the first device to the second device based on the wireless signal;
determining an area inference based on characteristics of the second device and based on the determined proximity of the first device to the second device, wherein the area inference comprises a category of the area, and wherein determining the area inference comprises determining that the second device is an anchor device associated with the area;
assigning an area label to the first device based on the area inference; and
providing the area label to an application to enhance the performance of the application.

2. The method of claim 1 , further comprising transmitting the area label to the second device.

3. The method of claim 1 , wherein providing the area label to an application comprises transmitting the area label to a third device, wherein the application is executable on the third device.

4. The method of claim 1 , wherein determining that the second device is an anchor device associated with the area comprises:
determining a confidence score that the second device is associated with the area; and
determining that the second device is an anchor device for the area when the confidence score exceeds a threshold.

5. The method of claim 1 , further comprising:
determining a first confidence score that the second device is associated with the area;
determining a second confidence score that a third device is associated with the area; and
determining the area inference based at least in part on an average of the first confidence score and the second confidence score.

6. The method of claim 5 , further comprising responsive to a determination that the second device and a third device are within a threshold distance from the first device, determining the area inference based at least in part on the average of the first confidence score and the second confidence score.

7. The method of claim 5 , further comprising responsive to a determination that the second device and a third device are within a threshold distance from the first device, determining the area inference based at least in part on the average of the first confidence score and the second confidence score, wherein the average is a weighted average of the confidence score and the second confidence score.

8. The method of claim 1 , further comprising:
determining a confidence score that the second device and a third device are associated with the area based on a correlation of a type of the second device to a type of the third device; and
determining the area inference based at least in part on the confidence score.

9. A method of determining a location context of a first device, the method comprising:
receiving, at the first device, a wireless signal from a second device;
determining a proximity of the first device to the second device based on the wireless signal;
determining an area inference based on characteristics of the second device and based on the determined proximity of the first device to the second device, wherein the area inference comprises a category of the area;
assigning an area label to the first device based on the area inference;
providing the area label to an application to enhance the performance of the application; and
transmitting the area label to a server as part of a request to disambiguate a query.

10. A first device, comprising:
a transceiver configured to receive a wireless signal from a second device;
a processor coupled to the transceiver, the processor configured to:
determine a proximity of the first device to the second device based on the wireless signal;
determine an area inference based on characteristics of the second device and based on the determined proximity of the first device to the second device, wherein the area inference comprises a category of the area, wherein, to determine the area inference, the processor is configured to determine that the second device is an anchor device associated with the area;
assign an area label to the first device based on the area inference; and
provide the area label to an application to enhance the performance of the application.

11. The first device of claim 10 , wherein the processor is further configured to transmit the area label to the second device.

12. The first device of claim 10 , wherein providing the area label to an application comprises transmitting the area label to a third device, wherein the application is executable on the third device.

13. The first device of claim 10 , wherein determining that the second device is an anchor device associated with the area comprises:
determining a confidence score that the second device is associated with the area; and
determining that the second device is an anchor device for the area when the confidence score exceeds a threshold.

14. The first device of claim 10 , further comprising:
determining a first confidence score that the second device is associated with the area;
determining a second confidence score that a third device is associated with the area; and
determining the area inference based at least in part on an average of the first confidence score and the second confidence score.

15. The first device of claim 14 , further comprising responsive to a determination that the second device and a third device are within a threshold distance from the first device, determining the area inference based at least in part on the average of the first confidence score and the second confidence score.

16. The first device of claim 14 , further comprising responsive to a determination that the second device and a third device are within a threshold distance from the first device, determining the area inference based at least in part on the average of the first confidence score and the second confidence score, wherein the average is a weighted average of the confidence score and the second confidence score.

17. The first device of claim 10 , further comprising:
determining a confidence score that the second device and a third device are associated with the area based on a correlation of a type of the second device to a type of the third device; and
determining the area inference based at least in part on the confidence score.

18. A first device, comprising:
a transceiver configured to receive a wireless signal from a second device;
a processor coupled to the transceiver, the processor configured to:
determine a proximity of the first device to the second device based on the wireless signal;
determine an area inference based on characteristics of the second device and based on the determined proximity of the first device to the second device, wherein the area inference comprises a category of the area;
assign an area label to the first device based on the area inference;
provide the area label to an application to enhance the performance of the application; and
transmit the area label to a server as part of a request to disambiguate a query.

19. A first device, comprising:
means for receiving a wireless signal from a second device;
means for determining a proximity of the first device to the second device based on the wireless signal;
means for determining an area inference based on characteristics of the second device and based on the determined proximity of the first device to the second device, wherein the area inference

Assignees

• Qualcomm Inc

Inventors

• Gum Arnold Jason

Classifications

• H04W4/029

  Location-based management or tracking services · CPC title

• H04W4/80

  Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication · CPC title

• H04W4/027

  using movement velocity, acceleration information · CPC title

• G16Y10/75

  Information technology; Communication · CPC title

• H04W4/023 Primary

  using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds · CPC title