Communication Apparatus Frequency Band Priority Logic
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Solution Overview
Problem
Communication apparatuses face challenges in determining the suitable frequency band to connect with an external apparatus when receiving multiple frequency band information during network setting processing, leading to potential connection delays or failures.
Innovation Solution
The communication apparatus prioritizes the 2.4 GHz frequency band over 5 GHz for connection when frequency band information is not provided or when multiple bands are available, using specific protocols to establish a stable wireless connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the communication apparatus receives multiple frequency band information without a predetermined priority rule, then the apparatus can potentially use the optimal frequency band for each situation, but the connection process becomes complex and uncertain leading to delays
Solution Approach 1:
The patent applies parameter changes by establishing a predetermined priority order for frequency bands (2.4 GHz before 5 GHz). This transforms the selection process from an uncertain multi-parameter decision into a deterministic sequence-based selection, where the apparatus systematically attempts connection in the predetermined order until success, thereby resolving the contradiction between connection speed and selection complexity.
2Reliability
If the communication apparatus tries to determine the most suitable frequency band dynamically, then the connection quality can be optimized, but the connection process takes longer due to multiple attempts and evaluations
Solution Approach 1:
The patent implements preliminary action by pre-establishing the priority order of frequency bands before the actual connection process begins. The communication apparatus is configured with a predetermined sequence (2.4 GHz first, then 5 GHz) that is decided in advance, eliminating the need for real-time evaluation and multiple attempts during connection, thus reducing connection time while maintaining reliability through the systematic approach.
3Productivity
If the communication apparatus uses a predetermined priority order for frequency band selection, then the connection process becomes faster and more certain, but the apparatus cannot adapt to situations where the prioritized band is unavailable or unsuitable
Solution Approach 1:
The patent applies dynamics by creating a flexible predetermined priority system where the apparatus attempts connection in the established order (2.4 GHz then 5 GHz) but can adaptively switch to the next priority band if the current one is unavailable or connection fails. This dynamic switching mechanism within a predetermined framework resolves the contradiction by maintaining speed through the structured approach while preserving adaptability through the fallback capability.
Data Source
AI summary
In a case where the setting information does not include a frequency band information corresponding to the first frequency band and does not include a frequency band information corresponding to the second frequency band or in a case where the setting information includes the frequency band information corresponding to the first frequency band and the frequency band information corresponding to the second frequency band, the communication apparatus wirelessly connects with the external apparatus using the first frequency band with priority than the second frequency.