Analog Access Line Impairment Identification via Digital Ping Analysis
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Solution Overview
Problem
Analog access lines in communications networks face intermittent impairments such as attenuation, near-end-crosstalk, and electromagnetic interference, making it difficult to diagnose and repair issues proactively, leading to customer dissatisfaction and high costs due to truck rolls for diagnosis.
Innovation Solution
A method and system that uses digital packet loss data to identify impairments by transmitting ping packets to analog access lines, determining packet loss and failure counts, and generating a line designation if thresholds are exceeded, allowing for remote and proactive identification of issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If digital packet loss measurements are implemented to proactively identify impairments, then diagnostic capability and customer satisfaction are improved, but system complexity and measurement overhead increase
Solution Approach 1:
The system uses existing digital packet data infrastructure to serve multiple purposes: normal data transmission and proactive impairment detection. By making the measurement system multi-functional, it avoids adding dedicated complex diagnostic equipment while still achieving precise diagnostic capability through existing network infrastructure.
Solution Approach 2:
The system performs self-diagnosis by automatically analyzing digital packet loss data without requiring external diagnostic tools or technician intervention. The network infrastructure monitors itself for impairments, reducing the need for separate measurement systems while maintaining high diagnostic precision.
2Measurement precision
If frequent ping transmissions are performed to detect intermittent impairments, then detection accuracy is improved, but network traffic overhead and energy consumption increase
Solution Approach 1:
The system transmits ping packets at periodic intervals rather than continuously, allowing the network to return to normal operation between measurements. This periodic sampling achieves sufficient detection accuracy for intermittent impairments while significantly reducing energy consumption compared to continuous monitoring.
Solution Approach 2:
The system uses a sufficient number of ping transmissions to reliably detect impairments without over-testing. By transmitting enough packets to achieve statistical significance for detection accuracy while avoiding excessive transmissions, the system optimizes the balance between measurement precision and energy consumption.
3Loss of energy
If remote automated diagnosis is implemented, then operational costs are reduced, but diagnostic reliability for intermittent conditions worsens
Solution Approach 1:
The system performs preliminary automated diagnosis using digital packet loss measurements before dispatching technicians. By collecting and analyzing measurement data in advance, it identifies likely impairment locations and types, making remote diagnosis more reliable while reducing unnecessary truck rolls and operational costs.
Solution Approach 2:
The system uses feedback from digital packet loss measurements to continuously improve diagnostic accuracy. By analyzing patterns in packet loss data over time and comparing against known impairment signatures, the system enhances its ability to reliably diagnose intermittent conditions remotely, reducing both costs and false negatives.
Data Source
AI summary
The preferred embodiments include a method, system or computer-readable storage medium for identifying analog access line impairments in a communications network. The embodiments include determining a ping packet loss count and a ping failure count from digital packet loss data associated with at least one analog access line. The embodiments also include generating a line designation for the at least one analog access line in response to the ping packet loss count exceeding a first threshold and the ping failure count exceeding a second threshold. Also, a plurality of pings can be transmitted during a testing period, the digital packet loss data being generated in response to the plurality of pings. The first threshold can represent at least a three percent ping packet loss. The second threshold can represent the ping failure count being at least ten percent of a total number of the plurality of pings.