IPTV Fault Detection Using Effective Packet Loss Factors
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Solution Overview
Problem
Existing fault detection methods in IPTV systems are inaccurate due to the influence of packet loss recovery methods, which affect the sensitivity of packet loss rate detection, making it difficult to differentiate between network and non-network-related faults.
Innovation Solution
A fault detection method that utilizes effective packet loss factors to assess the effectiveness of packet loss recovery methods, allowing for accurate fault detection by considering the compensation provided by these methods, and includes monitoring devices and network devices to collect and analyze video quality parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packet loss recovery methods (FEC, RET) are used to improve fault tolerance, then system reliability is improved, but measurement precision of packet loss rate deteriorates
Solution Approach 1:
The patent introduces an effective packet loss factor as an intermediary metric that accounts for the impact of packet loss recovery methods. This mediator translates the complex interaction between packet loss rate and recovery effectiveness into a single measurable parameter that accurately reflects actual video quality impact, resolving the contradiction between using recovery methods and measuring true loss impact.
Solution Approach 2:
The patent changes the measurement parameter from raw packet loss rate to effective packet loss factor, which incorporates the effectiveness of packet loss recovery. This parameter transformation allows the system to maintain high reliability through recovery methods while achieving accurate measurement by adjusting what is being measured rather than changing the underlying physics.
2Reliability
If packet loss recovery methods are deployed to enhance service quality, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the effectiveness evaluation of packet loss recovery from the complex monitoring system and encapsulates it into a simple effective packet loss factor calculation. By separating the complexity of evaluating recovery effectiveness from the core monitoring function, the system maintains high reliability while reducing the apparent complexity of the monitoring device.
3Ease of operation
If traditional packet loss rate monitoring is used for fault detection, then ease of operation is maintained, but measurement precision deteriorates
Solution Approach 1:
The patent changes the monitoring parameter from packet loss rate to effective packet loss factor, which can be calculated using the same simple monitoring infrastructure. This parameter change maintains ease of operation while dramatically improving measurement precision by accounting for packet loss recovery effectiveness.
Solution Approach 2:
The patent implements feedback by using the effective packet loss factor to accurately determine whether video service faults are network-related. This feedback mechanism provides precise information about the actual impact of packet loss, enabling accurate fault classification without complicating the operational process.
Data Source
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AI summary
Embodiments of the present invention relate to the field of multimedia technologies, and provide a fault detection method, a monitoring device, and a network device to accurately perform fault detection on a video service. The method includes: obtaining a video quality parameter of a monitored video stream, where the video quality parameter is determined according to a packet loss recovery method of the monitored video stream, the video quality parameter includes an effective packet loss factor, and the effective packet loss factor is used to indicate effectiveness of network packet loss recovery performed by using the packet loss recovery method of the monitored video stream; and performing fault detection based on the video quality parameter of the monitored video stream.