Network Delay Detection via Time Difference Thresholds
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Solution Overview
Problem
Conventional wireless networks face communication delays that are often misattributed to wireless issues, when in fact they stem from wired network conditions, necessitating a method to accurately measure and detect delays on both wired and wireless sides.
Innovation Solution
A network management system that monitors and compares time values between signal transmissions and receptions to determine delays, using threshold ranges to identify issues on both the wired and wireless sides, enabling targeted corrective actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If delay measurement is not implemented, then users can quickly operate without delay concerns, but delay sources cannot be accurately identified leading to misattribution and ineffective troubleshooting
Solution Approach 1:
The patent segments the network into distinct domains (wireless domain and wired domain) and measures delays separately in each domain. By dividing the overall delay measurement into domain-specific measurements, the system achieves precise delay source identification without requiring complex end-to-end measurement infrastructure, thus resolving the contradiction between measurement precision and system complexity.
2Measurement precision
If domain-specific delay measurement is implemented, then delay sources can be accurately identified, but additional measurement infrastructure and processing are required
Solution Approach 1:
The patent enables network elements (access points, switches, routers) to perform self-measurement of domain delays using their existing clocks and processing capabilities. Each network element measures the time difference between receiving domain-specific delay measurement messages and generating corresponding responses, eliminating the need for external measurement infrastructure and reducing implementation difficulty.
3Reliability
If comprehensive delay monitoring is implemented across all network elements, then accurate delay detection is achieved, but energy consumption and processing overhead increase
Solution Approach 1:
The patent implements delay monitoring selectively rather than universally - only network elements that are part of the delay measurement path perform measurements. The system uses domain-specific delay measurement messages that are routed through specific network elements, so only those elements consume additional energy for measurement activities, while others operate normally without extra overhead.
Data Source
AI summary
Described is a system comprising a computing device, a wireless computing unit and a network management arrangement (“NMA”). The NMA receives a first signal and a second signal from the computing device. The NMA forwards the second signal to the unit and receives a third signal from the unit which is an acknowledgment of receipt of the second signal. The NMA determines a first time value indicative of a difference between a time of receipt of the first signal and a time of receipt of the second signal. The NMA compares the first time value to a first threshold range to generate a first output data. The NMA determines a second time value indicative of a difference between a time of transmission of the second signal and a time of receipt of the third signal. The NMA compares the second time value to a second threshold range to generate second output data. The NMA executes a response procedure as a function of at least one of the first and second output data.