Network Implementation of Spectrum Analysis

• US 20180270681A1
• Filed: 10/23/2017
• Published: 09/20/2018
• Est. Priority Date: 03/05/2013
• Status: Active Grant

• Current Assignee: Comcast Cable Communications LLC (Comcast Corporation)
• Original Assignee: Comcast Cable Communications LLC (Comcast Corporation)
• Inventors: Wolcott, Lawrence, Riggert, Justin, Leach, David, Bach, Thomas Emerson, Russell, James, Monnerat, Edward David, Szuter, Todd, Thomas, Bryan
• Granted Patent: US 10,477,422 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 17/345 Interference values signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] H04B17/336
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic

Abstract

Access devices may receive signals over a network and calculate a frequency spectrum of the received signals. An analyzer system may collect the frequency spectrum data from multiple access devices, and based on the collected data, detect, identify, and locate sources of anomalies in a communication network.

Claims

1. A method comprising:

accessing, by a computing device, a plurality of frequency characteristics of signals on a network, wherein the plurality of frequency characteristics correspond to the signals at a respective plurality of access devices connected to the network;

comparing, by the computing device, the plurality of frequency characteristics to a plurality of different pre-characterized fault types by;

accessing frequency signatures for each of the plurality of access devices;

determining, based on a comparison of the plurality of frequency characteristics to the frequency signatures, a difference approximation associated with a first access device of the plurality of access devices; and

comparing the difference approximation to the plurality of different pre-characterized fault types; and

determining, by the computing device, that a particular type of fault exists based on the comparing the plurality of frequency characteristics to the plurality of different pre-characterized fault types, wherein the particular type of fault is associated with the first access device.