Locationing based on channel-specific gain

Patent metadata

Field	Value
Publication number	US-11824595-B2
Application number	US-202117338527-A
Country	US
Kind code	B2
Filing date	Jun 3, 2021
Priority date	Dec 16, 2019
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

A wireless communication device may determine that a channel is to be used to transmit an advertisement. The wireless communication device may determine a channel-specific gain associated with transmitting the advertisement via the channel. The wireless communication device may generate the advertisement to include information identifying a channel identifier of the channel and the channel-specific gain. The wireless communication device may transmit the advertisement for locationing based on a received signal strength indicator (RSSI) of the advertisement.

First claim

What is claimed is:

1. A method, comprising:
determining, by a device, that a channel is to be used to transmit an advertisement;
determining, by the device, a channel-specific gain associated with transmitting the advertisement via the channel; and
generating, by the device, the advertisement to include information identifying a channel identifier of the channel an identifier of the device including at least a media access control (MAC) identifier, and the channel-specific gain; and
transmitting, by the device, the advertisement for locationing based on a received signal strength indicator (RSSI) of the advertisement.

2. The method of claim 1 , further comprising:
storing, in association with a transmitter calibration of the device and in a calibration mapping, the channel-specific gain in association with the channel identifier.

3. The method of claim 1 , wherein the channel is determined according to a schedule of transmitting individual advertisements via one of a plurality of channels.

4. The method of claim 1 , wherein the channel-specific gain is determined from a calibration mapping that indicates the channel-specific gain for the channel,
wherein the calibration mapping includes respective gain information for each channel of a plurality of channels that may be used to transmit the advertisement.

5. The method of claim 1 , wherein the channel-specific gain is associated with an RSSI reading determined during a transmitter calibration of the device.

6. The method of claim 1 , wherein generating the advertisement to include the information comprises:
including the channel identifier in a header of the advertisement; and
including a value of the channel-specific gain in a payload of the advertisement.

7. The method of claim 1 , wherein the identifier of the device permits a locationing platform to determine a location of a wireless communication device based on a location of the device.

8. The method of claim 1 , wherein the advertisement is transmitted as a BLUETOOTH® low energy communication.

9. A wireless communication device, comprising:
one or more memories; and
one or more processors communicatively coupled to the one or more memories, configured to:
receive, via a channel, an advertisement from a beacon;
identify, from the advertisement, a channel identifier of the channel and a beacon identifier of the beacon, the beacon identifier including at least a media access control (MAC) identifier;
determine, based on the channel identifier, a channel-specific gain associated with receiving the advertisement via the channel;
generate locationing information that includes the channel identifier, the channel-specific gain, and a measured received signal strength indicator (RSSI) of the advertisement; and
perform an action associated with the locationing information.

10. The wireless communication device of claim 9 , wherein the one or more processors, when determining the channel-specific gain, are configured to:
determine a channel-specific transmitter gain associated with the beacon transmitting the advertisement; and
determine a channel-specific receiver gain associated with the wireless communication device receiving advertisements via the channel,
wherein the channel-specific gain is determined to include the channel-specific transmitter gain and the channel-specific receiver gain.

11. The wireless communication device of claim 10 , wherein the channel-specific transmitter gain is determined based on the channel-specific transmitter gain being indicated in the advertisement.

12. The wireless communication device of claim 10 , wherein the one or more processors, when determining the channel-specific transmitter gain, are configured to:
determine, from the advertisement, the beacon identifier of the beacon; and
determine, based on the beacon identifier and the channel identifier, the channel-specific transmitter gain using a beacon profile mapping,
wherein the beacon profile mapping includes respective channel-specific transmitter gain information for the beacon and one or more other beacons.

13. The wireless communication device of claim 9 , wherein the one or more processors, when generating the locationing information, are configured to include the beacon identifier of the beacon in the locationing information, and
wherein the one or more processors, when performing the action, are to provide the locationing information to a locationing platform to indicate a location of the wireless communication device based on the beacon identifier, the channel identifier, the channel-specific gain, and the RSSI.

14. The wireless communication device of claim 9 , wherein the one or more processors, when performing the action, are configured to:
determine, based on the beacon identifier and a location mapping, a location of the beacon;
determine a distance between a location of the wireless communication device and the location of the beacon,
wherein the distance is determined based on offsetting the channel-specific gain from the RSSI; and
indicate, based on the distance, the location of the wireless communication device to a display of the wireless communication device or a locationing platform communicatively coupled to the wireless communication device.

15. The wireless communication device of claim 9 , wherein the advertisement is a BLUETOOTH® low energy communication.

Assignees

• Zebra Tech Corp

Inventors

• Geiger Edward W
• Gopalan Janakiraman
• Wan Yu
• Woodburn Richard Lawerance
• Warner Thomas E

Classifications

• H04B17/27 Primary

  for locating or positioning the transmitter · CPC title

• H04B17/318

  Received signal strength · CPC title

• H04B17/14 Primary

  of the whole transmission and reception path, e.g. self-test loop-back · CPC title