The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 10, 2019

Filed:

Mar. 07, 2019
Applicant:

Abl Ip Holding Llc, Conyers, GA (US);

Inventors:

Xiangrong Li, Brookline, MA (US);

Jesse Grant, Needham, MA (US);

Sajin George, Somerville, MA (US);

Emanuel Paul Malandrakis, Boston, MA (US);

Mitri J. Abou-Rizk, Newton, MA (US);

Assignee:

ABL IP HOLDING LLC, Conyers, GA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 5/02 (2010.01); G01S 13/87 (2006.01); H04B 17/318 (2015.01); H04W 88/16 (2009.01); H04W 64/00 (2009.01); H04W 84/18 (2009.01);
U.S. Cl.
CPC ...
G01S 5/0284 (2013.01); G01S 13/878 (2013.01); H04B 17/318 (2015.01); H04W 64/003 (2013.01); H04W 88/16 (2013.01); H04W 84/18 (2013.01);
Abstract

Radio frequency-enabled nodes, in an example asset tracking system, receive a basic message including an asset tracking tag identifier from an asset tag. The nodes measure a signal attribute of the received message; and each receiving node transmits a node asset message including the asset tag identifier, a respective node identifier, and the measured signal attribute. Edge gateways each receive one or more node asset messages transmitted by some number of the radio frequency-enabled nodes and rank respective node identifiers based on the measured signal attribute. Each edge gateway forwards an aggregated message to a fog gateway, which parses data from the aggregated messages to form a node identifier tuple identifying at least three nodes near the asset tag. Ordered identifiers from the tuple and known locations of the identified nearby nodes can then be processed to estimate of the location of the asset tag.


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