Transmitting location data in wireless networks

• US 10,129,847 B2
• Filed: 11/10/2016
• Issued: 11/13/2018
• Est. Priority Date: 10/09/2007
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Inventors: Wu, Deyun, Kuehnel, Thomas W., Hassan, Amer A., Lu, Yi, Shen, Hui, Subramani, Sundar P., Swamy, Vinod K.
• Primary Examiner(s): HTUN, SAN A
• Application Number:
  US15/348,806
• Publication Number:
  US 20170064668A1
• Time in Patent Office: 733 Days
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 64/003 locating network equipment

Abstract

A wireless access point in a wireless network that may be adapted to transmit location data indicating its location to other devices. In some embodiments, the location data may be embedded in a control message or other message used to broadcast information necessary for a device to establish a connection to the wireless access point. In terms of the Open Systems Interconnect (OSI) layered model of a network, layer 2 control messages, including beacons, probe responses, or other suitable transmissions may be used for control messages or announcement transmissions.

Claims

1. A method performed on a hardware computing device, the method comprising:

receiving, by the hardware computing device, a plurality of control messages, where each control message comprises location information in an information element of an options field of the control message, where the information element comprises a payload that includes a type field and a value field where;

a. in accordance with the type field comprising a first value, the value field indicating a longitude and a latitude of a device that transmitted the control message,

b. in accordance with the type field comprising a second value, the value field indicating an altitude above sea level of the device that transmitted the control message, and

c. in accordance with the type field comprising a third value, the value field indicating an estimate of a radius of an error circle around the device that transmitted the control message, and wherein the information element further comprises a unique identifier field that includes a value indicating an organization that generated the location information; and

determining, by the hardware computing device based on the location information comprised by the received plurality of control messages, a location of the hardware computing device.

2. The method of claim 1 where the information elements of the received plurality of control messages are compliant with the Institute of Electrical and Electronics Engineers'"'"' (“

IEEE”

) 802.11 standard.

3. The method of claim 1 where, in accordance with the type field comprising a fourth value, the value field comprises a value that identifies a particular floor of a building.

4. The method of claim 1 where, in accordance with the type field comprising a fifth value, the value field comprises a value that identifies a particular room of a building.

5. The method of claim 1 where, in accordance with the type field comprising a sixth value, the value field comprises administrator-provided metadata, where at least one of the received control messages includes at least two different types of location information.

6. The method of claim 1 where the control messages are beacons or response probes.

7. The method of claim 1 where the at least two different types of location information include geographic location information and building floor and room location information.

8. A hardware computing device comprising:

a network adapter;

a processor that is coupled to the network adapter; and

memory that is coupled to the processor and that includes computer-executable instructions that, based on execution by the processor, configure the hardware computing device to perform actions comprising;

receiving, by the hardware computing device via the network adapter, a plurality of control messages, where each control message comprises location information in an information element of an options field of the control message, where the information element comprises a payload that includes a type field and a value field where;

a. in accordance with the type field comprising a first value, the value field indicating a longitude and a latitude of a device that transmitted the control message,

b. in accordance with the type field comprising a second value, the value field indicating an altitude above sea level of the device that transmitted the control message, and

c. in accordance with the type field comprising a third value, the value field indicating an estimate of a radius of an error circle around the device that transmitted the control message, and wherein the information element further comprises a unique identifier field that includes a value indicating an organization that generated the location information; and

determining, by the hardware computing device via the processor based on the location information comprised by the received plurality of control messages, a location of the hardware computing device.

9. The hardware computing device of claim 8 where the information elements of the received plurality of control messages are compliant with the Institute of Electrical and Electronics Engineers'"'"' (“

IEEE”

) 802.11 standard.

10. The hardware computing device of claim 8 where, in accordance with the type field comprising a fourth value, the value field comprises a value that identifies a particular floor of a building.

11. The hardware computing device of claim 8 where, in accordance with the type field comprising a fifth value, the value field comprises a value that identifies a particular room of a building.

12. The hardware computing device of claim 8 where, in accordance with the type field comprising a sixth value, the value field comprises administrator-provided metadata.

13. The hardware computing device of claim 8 where at least one of the received control messages includes at least two different types of location information, where the at least two different types of location information include geographic location information and building floor and room location information.

14. The hardware computing device of claim 8 where the control messages are beacons or response probes.

15. At least one hardware computer-readable medium that includes computer-executable instructions that, based on execution by a processor of a hardware computing device, configure the hardware computing device to perform actions comprising:

receiving, by the hardware computing device, a plurality of control messages, where each control message comprises location information in an information element of an options field of the control message, where the information element comprises a payload that includes a type field and a value field where;

a. in accordance with the type field comprising a first value, the value field indicating a longitude and a latitude of a device that transmitted the control message,

b. in accordance with the type field comprising a second value, the value field indicating an altitude above sea level of the device that transmitted the control message, and

c. in accordance with the type field comprising a third value, the value field indicating an estimate of a radius of an error circle around the device that transmitted the control message,

and wherein the information element further comprises a unique identifier field that includes a value indicating an organization that generated the location information; and

determining, by the hardware computing device based on the location information comprised by the received plurality of control messages, a location of the hardware computing device.

16. The at least one hardware computer-readable medium of claim 15 where the information elements of the received plurality of control messages are compliant with the Institute of Electrical and Electronics Engineers'"'"' (“

IEEE”

)802.11 standard.

17. The at least one hardware computer-readable medium of claim 15 where, in accordance with the type field comprising a fourth value, the value field comprises a value that identifies a particular floor of a building.

18. The at least one hardware computer-readable medium of claim 15 where, in accordance with the type field comprising a fifth value, the value field comprises a value that identifies a particular room of a building.

19. The at least one hardware computer-readable medium of claim 15 where, in accordance with the type field comprising a sixth value, the value field comprises administrator-provided metadata.

20. The at least one hardware computer-readable medium of claim 15 where at least one of the received control messages includes at least two different types of location information, and where the at least two different types of location information include geographic location information and building floor and room location information;

or where the control messages are beacons or response probes.