DSL Modem Impedance Detection via Data Rate Analysis
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Solution Overview
Problem
DSL service performance is often sub-standard due to incorrect installation of DSL modems and filters at customer premises, leading to increased impedance and reduced data rates, resulting in costly technical support requests.
Innovation Solution
A communication network system that collects data rate information, performs statistical analysis, and resets DSL lines to determine impedance issues, identifying incorrect modem and filter connections through Bayesian analysis, allowing for automated detection and potential remote resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If customers self-install DSL modems and filters, then installation cost is reduced, but configuration errors increase leading to sub-standard service performance
Solution Approach 1:
The system continuously monitors DSL line performance metrics including data rate, signal-to-noise ratio, and impedance levels. When configuration errors are detected through automated analysis of these feedback signals, the system generates alerts and provides guided troubleshooting instructions to customers, enabling self-correction without technical support intervention.
Solution Approach 2:
The patent implements automated diagnostic tools that enable customers to self-diagnose and self-correct installation errors. The system analyzes performance data, identifies configuration problems such as incorrect filter connections or impedance mismatches, and provides step-by-step remediation instructions, allowing customers to resolve issues independently.
2Reliability
If technical support personnel manually diagnose and correct DSL configuration issues, then service quality is maintained, but support costs increase
Solution Approach 1:
The system automatically monitors DSL line performance, detects configuration errors through analysis of data rate and impedance metrics, and provides guided troubleshooting instructions to customers. This automated self-service approach maintains service quality by quickly identifying and resolving issues without requiring technical support personnel intervention for routine configuration problems.
Solution Approach 2:
The patent replaces manual technical support processes with an automated electronic monitoring and diagnostic system. The system uses software-based analysis of DSL performance data to detect configuration errors, substituting the mechanical process of human technicians physically visiting or calling customers with an automated electronic detection and guidance system.
3Speed
If DSL lines operate at higher data rates, then service performance is improved, but impedance sensitivity increases making configuration errors more likely
Solution Approach 1:
The system continuously monitors multiple DSL line parameters including data rate, signal-to-noise ratio, and impedance levels. By analyzing feedback from these measurements, the system can detect configuration errors such as incorrect filter connections that cause impedance mismatches, even when the line is operating at high data rates where errors are more subtle and difficult to detect.
Data Source
AI summary
A communication network is operated by collecting data rate information for at least one Digital Subscriber Line (DSL), comparing the collected data rate information with a provisioned data rate associated with the at least one DSL, resetting the at least one DSL if the collected data rate information for the at least one DSL is less than the provisioned data rate associated with the at least one DSL, performing a statistical analysis on time the at least one DSL operates at about the provisioned data rate versus time the at least one DSL operates below the provisioned data rate, and determining whether the at least one DSL has an impedance problem based on the statistical analysis.