Access Point Cellular Channel Scanning for Interference Minimization
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Solution Overview
Problem
Existing access points face interference issues between cellular and wireless communication frequencies, leading to disrupted communication due to poor isolation and varying signal quality from different cellular service providers, making it difficult for users to select a network with minimal noise or interference.
Innovation Solution
An access point with embedded-SIM capability scans and evaluates available cellular service providers based on signal strength and frequency interference, sorting them by preference to minimize interference with wireless channels, allowing users to select the best available network for stable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If access points use cellular frequencies for communication, then cellular network connectivity is enabled, but interference with wireless communication channels occurs due to poor frequency isolation
Solution Approach 1:
The system performs preliminary scanning and evaluation of cellular service providers before establishing connections. It proactively identifies providers with frequencies that have minimal interference with wireless channels, and pre-ranks them in order of preference, so that when connection is needed, the optimal provider is already identified and ready for use.
Solution Approach 2:
The system changes the selection parameter from arbitrary or default provider selection to evidence-based selection using signal strength measurements and frequency interference analysis. By evaluating and ranking providers based on these parameters, the system dynamically selects the optimal provider that minimizes interference while maintaining connectivity.
2Reliability
If multiple cellular service providers are available, then network coverage is improved, but selecting the optimal provider becomes difficult due to varying signal quality and interference levels
Solution Approach 1:
The access point performs automatic self-evaluation of available cellular service providers by scanning their frequencies, measuring signal strengths, and analyzing interference levels with wireless channels. The system autonomously ranks providers and selects the optimal one without requiring manual user configuration or intervention, making the complex selection process transparent and automatic.
Solution Approach 2:
The system continuously monitors and evaluates cellular service provider performance, using feedback from signal strength measurements and interference analysis to dynamically adjust provider selection. This feedback mechanism ensures that the access point always connects to the optimal provider based on current conditions, improving reliability while automating the selection process.
3Adaptability or versatility
If cellular and wireless radios operate simultaneously, then device functionality is enhanced, but communication disruption occurs due to power leakage and signal scattering
Solution Approach 1:
The system extracts and evaluates the frequency characteristics of cellular service providers to identify those that operate on frequencies well-isolated from wireless communication channels. By selecting cellular providers whose frequencies are naturally separated from wireless bands, the system minimizes power leakage and signal scattering between radios, maintaining stable communication for both functions simultaneously.
Data Source
AI summary
Examples include scanning for cellular channels from various cellular service providers. Identifying cellular channels corresponding to cellular service providers. Recording a set of operating parameters for the cellular channels. Evaluating the cellular channels based on the set of operating parameters. Sorting the cellular service providers based on the evaluation of the cellular channels.