Detecting bluetooth low energy (BLE) beacons using WiFi

• US 9,998,903 B2
• Filed: 04/04/2016
• Issued: 06/12/2018
• Est. Priority Date: 04/04/2016
• Status: Active Grant

• Current Assignee: Avaya Incorporated
• Original Assignee: Avaya Incorporated
• Inventors: Krishnakumar, Anjur S.
• Primary Examiner(s): Phan, Tri H
• Application Number:
  US15/090,344
• Publication Number:
  US 20170289785A1
• Time in Patent Office: 799 Days
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

Communication information is received from a Wireless Fidelity (“WiFi”) interface. The WiFi interface may receive WiFi information from a WiFi endpoint and/or BLE beacons from a Bluetooth device. The reason a WiFi device can receive BLE beacons is because WiFi channels and BLE beacon frequencies overlap. The BLE beacon may come from a various types of Bluetooth devices, such as a sensor, a mobile device, a communication device, and/or the like. The communication information is filtered based on one or more defined BLE beacon channels. If there are one or more BLE beacons detected in the one or more defined BLE beacon channels, BLE information is generated. The BLE information is then sent to a communication device that tracks the BLE information. For example a network monitoring station can track the BLE information.

Claims

1. A Wireless Fidelity (“

WiFi”

) device comprising;

a microprocessor;

a WiFi interface; and

a computer readable medium, coupled with the microprocessor and comprising microprocessor readable and executable instructions that cause the microprocessor to execute;

a signal processing module that receives communication information from the WiFi interface, filters the communication information from the WiFi interface based on a defined Bluetooth Low Energy (BLE) beacon channel that is within a WiFi channel defined in the WiFi interface, detects if there are one or more BLE beacons in the defined BLE beacon channel, and generates BLE information in response to detecting if there are one or more BLE beacons in the defined BLE beacon channel; and

a transmission module that sends the BLE information to a communication device.

2. The WiFi device of claim 1, wherein the WiFi interface is not designed to support Bluetooth.

3. The WiFi device of claim 1, wherein the signal processing module sets the WiFi interface to divide two WiFi channels into a plurality of frequency bins and monitors, at the same time, two frequency bins of the plurality of frequency bins that are associated with a respective defined BLE beacon channel.

4. The WiFi device of claim 1, wherein the signal processing module sets the WiFi interface to divide the defined WiFi channel into a plurality of frequency bins and monitors a frequency bin of the plurality of frequency bins that is associated with the defined BLE beacon channel.

5. The WiFi device of claim 4, wherein the signal processing module analyzes the frequency bin that is associated with the defined BLE beacon channel for a dwell period that is long enough to cover at least a plurality of BLE beacon intervals.

6. The WiFi device of claim 4, wherein the signal processing module halts monitoring the frequency bin that is associated with the defined BLE beacon channel based on reception of a WiFi signal at the WiFi interface.

7. The WiFi device of claim 4, wherein the signal processing module sets the WiFi interface to divide three WiFi channels into a respective plurality of frequency bins and a monitors a respective frequency bin in each the three WiFi channels that corresponds to a respective defined BLE beacon channel.

8. The WiFi device of claim 7, wherein each of the respective defined BLE beacon channels are monitored in a defined sequence.

9. The WiFi device of claim 1, wherein the BLE information is used to identify a location of a Bluetooth device or to identify that the Bluetooth device is no longer beaconing.

10. The WiFi device of claim 1, wherein the signal processing module determines a threshold for detecting if there are one or more BLE beacons in the defined BLE beacon channel, wherein the threshold is based on a signal strength of the one or more BLE beacons or a noise level.

11. A method comprising:

receiving, by a microprocessor, communication information from a Wireless Fidelity (“

WiFi”

) interface;

filtering, by the microprocessor, the communication information from the WiFi interface based on a defined Bluetooth Low Energy (BLE) beacon channel that is within a WiFi channel defined in the WiFi interface;

detecting, by the microprocessor, when there are one or more BLE beacons in the defined BLE beacon channel;

in response to detecting that there are one or more BLE beacons in the defined BLE beacon channel, generating, by the microprocessor BLE information; and

sending, by the microprocessor, the BLE information to a communication device.

12. The method of claim 11, wherein microprocessor sets the WiFi interface to divide two WiFi channels into a plurality of frequency bins and monitors, at the same time, two frequency bins of the plurality of frequency bins that are associated with a respective defined BLE beacon channel.

13. The method of claim 11, wherein the microprocessor sets the WiFi interface to divide the defined WiFi channel into a plurality of frequency bins and monitors a frequency bin of the plurality of frequency bins that is associated with the defined BLE beacon channel.

14. The method of claim 13, wherein the microprocessor halts monitoring the frequency bin that is associated with the defined BLE beacon channel based on reception of a WiFi signal at the WiFi interface.

15. The method of claim 13, wherein the microprocessor sets the WiFi interface to divide three WiFi channels into a respective plurality of frequency bins and monitors a respective frequency bin in each the three WiFi channels that corresponds to a respective defined BLE beacon channel.

16. The method of claim 15, wherein each of the respective defined BLE beacon channels are monitored in a defined sequence.

17. The method of claim 11, wherein the microprocessor determines a threshold for detecting if there are one or more BLE beacons in the defined BLE beacon channel, wherein the threshold is based on a signal strength of the one or more BLE beacons or a noise level.

18. The method of claim 11, wherein the BLE information is used to identify that a Bluetooth device is no longer functioning or is in a specific location.

19. A communication device comprising:

a microprocessor;

a network interface; and

a computer readable medium, coupled with the microprocessor and comprising microprocessor readable and executable instructions that program the microprocessor to execute;

a management module that receives Bluetooth Low Energy (BLE) information from a Wireless Fidelity (“

WiFi”

) device via the network interface, wherein the BLE information is based on communication information received from the WiFi device that has been filtered based on a defined BLE beacon channel that is within a WiFi channel defined in a WiFi interface; and

a display module that prepares the BLE information for display to a user.

20. The communication device of claim 19, wherein the received BLE information comprises BLE information received from a plurality of WiFi devices and wherein the display module displays prepares the BLE information received from the plurality of WiFi devices for display to the user.