Dual-Processor Wireless Channel Avoidance
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Solution Overview
Problem
Current home gateways with a single core processor experience co-channel interference when switching between AP and STA modes, limiting network performance due to the inability to operate on different channels.
Innovation Solution
A dual-processor system where one processor provides wireless access services and another accesses other access points, using a communication protocol with a wired interface to store and avoid channel interference by selecting channels with the least devices and best signal strength for connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single core processor is used to switch between AP mode and STA mode, then device complexity is reduced, but co-channel interference occurs and network performance deteriorates
Solution Approach 1:
The system divides the single processor into two separate processors: a first processor dedicated to AP mode and a second processor dedicated to STA mode. This segmentation allows each processor to operate independently on different channels, eliminating co-channel interference while maintaining manageable device complexity through clear functional separation.
2Device complexity
If AP mode and STA mode operate on the same channel, then device complexity is reduced, but co-channel interference increases and signal quality deteriorates
Solution Approach 1:
The system assigns different channel characteristics to different processors: the first processor operates on a first channel for AP services, while the second processor operates on a second channel for STA connections. This local quality differentiation ensures that each processor operates in its own optimized channel environment, eliminating mutual interference while maintaining simple channel management through automatic channel assignment.
3Reliability
If channel avoidance is implemented between processors, then co-channel interference is reduced, but device complexity increases
Solution Approach 1:
The system performs preliminary channel assignment during processor initialization, where the first processor is assigned a first channel and the second processor is assigned a second channel before operation begins. This preliminary action establishes channel avoidance in advance, preventing co-channel interference without requiring complex real-time coordination mechanisms during operation.
Data Source
AI summary
The invention discloses a method for controlling a wireless access device, comprising: storing the channel information when the first processor receives a channel information transmitted by the second processor; wherein, a current used channel information is transmitted from the second processor to the first processor when the second processor is detected to establish a connection with the other wireless devices; establishing a wireless connection between the first processor through channels which are different from the stored channel information and the other wireless devices. The invention also provides a equipment for controlling the wireless access device. According to the method and the equipment, channel avoidance is performed automatically during establishment of a wireless connection of the wireless access device, so that the technical problem of co-channel interference is solved.