Adaptive Quality Deterioration Detector for Telecommunications Networks
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Solution Overview
Problem
Current telecommunications quality detection systems struggle to accurately differentiate between network faults and temporary quality deteriorations, particularly in networks with both wired and wireless lines, leading to false positives and inadequate real-time monitoring capabilities.
Innovation Solution
A quality deterioration detector apparatus that monitors packets flowing through the network, extracts quality indices, and uses spectral analysis to determine whether the packet comes from a wired or wireless line, adjusting detection criteria accordingly to differentiate between periodic and temporary quality deteriorations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If quality deterioration detection is performed using fixed threshold criteria, then network faults can be detected, but false positives occur due to periodic quality fluctuations in wireless lines
Solution Approach 1:
The patent applies dynamics by making the detection criteria adaptive rather than fixed. The system dynamically adjusts the quality threshold based on the determined line type (wired or wireless). For wireless lines, the threshold is set higher to accommodate periodic fluctuations, while for wired lines, a lower threshold provides stricter monitoring. This dynamic adjustment resolves the contradiction between detecting actual faults and avoiding false positives from normal wireless variations.
Solution Approach 2:
The patent changes the detection parameter (quality threshold) based on the line type. By identifying whether a packet traverses wireless or wired lines, the system applies different threshold values: a first threshold for wireless lines that tolerates periodic fluctuations, and a second threshold for wired lines that detects even minor deteriorations. This parameter differentiation resolves the measurement precision issue while maintaining reliable fault detection.
2Reliability
If monitoring is performed on all packets regardless of line type, then comprehensive quality monitoring is achieved, but real-time detection capability is reduced due to processing overhead
Solution Approach 1:
The patent segments the monitoring process by first determining the line type (wired or wireless) for each packet before applying quality detection. This segmentation allows the system to apply different detection strategies: wireless packets use a more lenient threshold that accounts for normal fluctuations, while wired packets use stricter monitoring. This segmented approach reduces unnecessary false alarms and improves real-time detection efficiency without compromising comprehensive monitoring coverage.
Solution Approach 2:
The patent performs preliminary line type determination before quality deterioration detection. By pre-classifying packets as traversing wired or wireless lines, the system prepares the appropriate detection criteria in advance, enabling faster real-time processing. This preliminary action avoids the computational overhead of analyzing each packet's quality characteristics from scratch and allows the system to quickly apply the appropriate threshold based on the pre-determined line type.
3Measurement precision
If strict quality thresholds are applied to wireless lines, then quality deterioration can be detected, but false positives increase due to normal wireless fluctuations
Solution Approach 1:
The patent applies local quality by setting different quality thresholds for different line types. Instead of using a uniform strict threshold for all packets, the system applies a first (more lenient) threshold specifically for wireless lines and a second (stricter) threshold for wired lines. This localized quality standard recognizes that wireless lines naturally exhibit periodic fluctuations and allows them without triggering false alarms, while maintaining high sensitivity for wired lines where such fluctuations are not expected.
Data Source
AI summary
An apparatus for detecting deterioration in quality of a telecommunications network includes a packet monitor for monitoring a packet flowing through the network, a quality information extractor for extracting the quality index of the network on the basis of the packet monitored, a quality deterioration detector for detecting deterioration in quality of the network on the basis of the quality index. The quality deterioration detector determines, for the packet monitored and coming only from a wired line, that the quality of the network is deteriorated if the quality index decreases, and determines, for the packet monitored and coming from a wireless line, that the quality of the network is deteriorated if the quality index aperiodically decreases.