Wireless Mesh Channel Quality Detection and Switching
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Solution Overview
Problem
In wireless mesh networks, access points often use the same channel and lack a mechanism to adapt to changing environments, leading to deteriorated signal quality due to interference from different locations, resulting in decreased overall communication performance.
Innovation Solution
A communication device with a wireless communication module and a channel detection module that periodically assesses channel quality across multiple channels, allowing access points to determine and switch to a better channel for improved communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If access points use the same channel for wireless mesh network communication, then network stability is improved, but communication quality deteriorates due to location-specific interferences
Solution Approach 1:
The patent applies local quality by allowing each access point to detect and evaluate channel quality based on its specific location and interference environment. Each access point independently assesses channel conditions and contributes local quality data, enabling the network to select channels that are optimal for each specific location rather than forcing a uniform channel assignment that ignores local interference conditions.
Solution Approach 2:
The patent implements dynamics by enabling access points to dynamically detect channel quality and switch between channels based on real-time environmental conditions. The system transitions from a static channel assignment to a dynamic channel selection process where access points can adapt their operating channel according to detected interference levels and quality metrics, ensuring continuous optimization of communication quality.
2Area of stationary object
If access points are located at different positions, then network coverage is improved, but channel interference varies导致overall communication quality deteriorates
Solution Approach 1:
The patent addresses this contradiction by implementing local quality assessment at each access point. Each access point independently detects channel quality in its specific location, considering local interference conditions caused by walls, furniture, and other environmental factors. This allows the network to maintain extensive coverage through multiple access points while ensuring each operates on a channel suitable for its local environment.
Solution Approach 2:
The patent employs feedback mechanisms where each access point continuously detects channel quality and reports back to the network management system. Based on this feedback regarding local interference conditions and quality metrics, the system can make informed decisions about channel assignment and switching, ensuring that expanded network coverage does not compromise overall communication quality.
3Device complexity
If ACS mechanism is only executed when device is powered on, then device complexity is reduced, but channel quality adaptation capability deteriorates
Solution Approach 1:
The patent resolves this contradiction by making the channel selection process dynamic rather than static. Instead of executing ACS only once at power-on, the system continuously or periodically detects channel quality and allows access points to switch channels based on real-time conditions. This dynamic approach enhances adaptability without requiring overly complex device architecture, as the channel switching logic builds upon the existing ACS framework.
Solution Approach 2:
The patent applies preliminary action by having access points pre-detect channel quality conditions and prepare channel switching decisions before communication quality deteriorates. The system proactively monitors channel conditions and can switch to better channels in advance, preventing quality degradation rather than reacting after problems occur. This proactive approach improves adaptability while maintaining manageable device complexity.
Data Source
AI summary
The present invention provides a control method of a communication device, wherein the control method includes the steps of: controlling a wireless communication module of the communication device to use a first channel to communicate with an access point; detecting a plurality of channels to generate a plurality of first quality parameters, respectively, to generate a first channel detection result; receiving a second channel detection result from the access point, wherein the second channel detection result comprises a plurality of second quality parameters respectively generated by the access point detecting at least part of the plurality of channels; calculating a plurality of final quality parameters according to the first channel detection result and the second channel detection result; and determining whether to control the wireless communication module to switch from the first channel to a second channel according to the plurality of final quality parameters.