Portable Terminal Dynamic Channel Switching for Interference Reduction
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Solution Overview
Problem
Wireless communication channels between portable terminals and access points often become congested due to frequency interference from multiple access points using the same or adjacent channels, leading to decreased communication speed and disconnection.
Innovation Solution
A method and system that monitor the congestion of wireless communication channels and automatically switch to channels used by a smaller number of access points, thereby reducing interference and maintaining communication stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed wireless communication channel is established with a particular AP using a preset channel, then the portable terminal can maintain a stable connection, but the communication speed decreases and disconnection occurs when the channel becomes congested due to multiple APs using the same or adjacent channels
Solution Approach 1:
The patent implements dynamic channel switching capability that allows the portable terminal to transition from a fixed channel assignment to an adaptive channel selection mechanism. The terminal continuously monitors channel congestion levels and automatically switches to less congested channels, transforming the static connection into a dynamic one that adapts to changing wireless environment conditions.
Solution Approach 2:
The patent employs feedback mechanisms where the portable terminal monitors channel congestion status in real-time and uses this information to make intelligent channel switching decisions. The terminal receives feedback about the number of APs using each channel and adjusts its communication strategy accordingly, switching away from congested channels to maintain optimal communication performance.
2Area of stationary object
If multiple APs use the same or adjacent channels in close proximity, then the coverage area is expanded, but frequency interference increases causing channel congestion
Solution Approach 1:
The patent changes the channel parameter dynamically based on the wireless environment. Instead of using a fixed channel, the portable terminal monitors congestion levels (a quantitative parameter) and switches to channels with fewer APs, effectively changing the frequency parameter to avoid interference while maintaining coverage.
Solution Approach 2:
The patent converts the harmful effect of channel congestion into a useful mechanism for intelligent channel selection. By monitoring the number of APs using each channel, the terminal identifies congested channels and automatically switches to less congested alternatives, turning the problem of multiple APs into a basis for optimized channel assignment.
3Reliability
If the portable terminal continuously monitors channel congestion and switches channels, then communication stability is maintained, but the device complexity increases
Solution Approach 1:
The patent implements self-service functionality where the portable terminal autonomously monitors channel congestion and performs channel switching without requiring external control or complex infrastructure. The terminal uses its own resources to detect congestion levels and make switching decisions, simplifying the overall system architecture while maintaining communication stability.
Data Source
AI summary
A portable terminal is capable of controlling a wireless communication channel control. If a particular wireless communication channel established between the portable terminal and access points (APs) is congested, the portable terminal is switched to one of the channels used by APs whose number is less than the number of APs using the particular wireless communication channel.