Dual-Mode Wireless Control for Suppressing AP Switch Interference

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Solution Overview

Problem

Existing wireless communication systems face issues such as communication performance degradation and delays due to simultaneous operation in wireless infrastructure and P2P modes, particularly when switching access points, leading to interference and delayed processing.

Innovation Solution

An electronic device is designed to execute communication in multiple modes while suppressing access point changes based on specific conditions, ensuring seamless operation by maintaining established connections in both wireless infrastructure and P2P modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the connection destination AP is switched in response to an AP change request, then communication efficiency is improved through dynamic AP switching, but communication performance degrades and delays occur when simultaneously operating in wireless infrastructure mode and P2P mode

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidcommunication performance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The electronic device determines in advance whether it is operating in simultaneous operation mode (both wireless infrastructure mode and P2P mode activated). When simultaneous operation is detected, the device preemptively suppresses AP change requests from being executed, preventing the interference and delays that would otherwise occur during AP switching while maintaining stable communication in both modes

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The device dynamically adjusts its response to AP change requests based on its current operational state. When only wireless infrastructure mode is active, the device normally processes AP change requests to optimize communication efficiency. When simultaneous operation mode is detected, the device switches to suppressing AP changes, thereby adapting its behavior to maintain communication performance across different operational contexts

Inventive Principle:
Principle #15Dynamics

2Productivity

If AP switching is performed to optimize wireless infrastructure mode communication, then data exchange efficiency between APs and STA is improved, but processing delays occur in other communication modes

Engineering Contradiction:
Improvedata exchange efficiencyVSAvoidprocessing delay
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The device detects the simultaneous operation state in advance and preemptively prevents AP switching operations when both wireless infrastructure mode and P2P mode are active. This preliminary action avoids the processing delays that would occur in P2P communication during AP switching, while still allowing efficient AP switching to occur when operating in wireless infrastructure mode alone

Inventive Principle:
Principle #9Preliminary anti-action

3Reliability

If the device responds to AP change requests to maintain optimal wireless connectivity, then connection quality is improved, but interference occurs between wireless infrastructure mode and P2P mode

Engineering Contradiction:
Improveconnection qualityVSAvoidinterference
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

By detecting simultaneous operation mode in advance, the device preemptively suppresses AP change requests that would cause interference between wireless infrastructure mode and P2P mode. This prevents the harmful interference effect while maintaining stable connections in both communication modes during simultaneous operation

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS20250386269A1Electronic device, method of controlling same, and medium
Publication Date: 2025.12.18 CANON KK
  • US20250386269A1 patent drawing
  • US20250386269A1 patent drawing
  • US20250386269A1 patent drawing

AI summary

An electronic device that can execute communication in a first communication mode via wireless communication with an external access point and communication with an external apparatus in a second communication mode different from the first communication mode is provided. The device changes an access point of a connection destination connected with the first communication mode to another access point on a basis of a change request received from the access point, and suppresses a change of an access point of a connection destination based on the change request in a case where a connection in the first communication mode is established and the second communication mode is activated.