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1. (WO2013154579) DIAGNOSTIC METHODS FOR TWISTED PAIR TELEPHONE LINES BASED ON LINE DATA DISTRIBUTION ANALYSIS

Pub. No.:    WO/2013/154579    International Application No.:    PCT/US2012/033545
Publication Date: Fri Oct 18 01:59:59 CEST 2013 International Filing Date: Sat Apr 14 01:59:59 CEST 2012
IPC: H04M 3/08
H04M 3/30
Applicants: ADAPTIVE SPECTRUM AND SIGNAL ALIGNMENT, INC.
MOHSENI, Mehdi
CHARAFEDDINE, Mohamad
HWANG, Chan-Soo
TEHRANI, Ardavan, Maleki
Inventors: MOHSENI, Mehdi
CHARAFEDDINE, Mohamad
HWANG, Chan-Soo
TEHRANI, Ardavan, Maleki
Title: DIAGNOSTIC METHODS FOR TWISTED PAIR TELEPHONE LINES BASED ON LINE DATA DISTRIBUTION ANALYSIS
Abstract:
Methods and systems for twisted pair telephone line diagnostics based on patterns of line data occurring over time. An observed data distribution is classified as periodic or based on modeled distributions previously determined to correspond to a known line activity, fault type, or fault location. A disruption or parameter value pattern is classified through statistical inference of operational and performance data collected from the line. Where the disruption and/or parameter value(s) correlate with a time the customer is at the customer premises, an inference is made that the line fault causing the disruption is more likely at the CPE than at the Central Office. Where the disruption distribution is classified as being a result of human activities initiated on the line, a fault condition associated with the activity is inferred. Where a disruption pattern is correlated with human initiated plain old telephone service (POTS), a micro-filter problem is inferred for the line.