Wireless Network Access Point Selection Based on Connectable Device Capacity

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Solution Overview

Problem

In wireless LAN networks formed among devices like cameras for interlocked shooting, the usability decreases when a device with a lower maximum connectable device number is used as the access point, leading to disconnection of other devices and reduced network usability.

Innovation Solution

A communication apparatus determines whether the number of connectable devices is greater than or equal to a predetermined value and provides communication parameters to operate as a parent station or participating apparatus, ensuring that an appropriate device with sufficient capacity is designated as the access point, thereby allowing all devices to connect and maintain network usability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a device with lower maximum connectable device number is used as wireless LAN access point, then device complexity is reduced, but network usability deteriorates due to inability to connect all devices

Engineering Contradiction:
Improveaccess point capacityVSAvoidnetwork usability
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

Each device autonomously determines its own maximum connectable device number and compares it with the required number of connectable devices. The device then automatically decides whether to operate as access point or terminal based on this self-assessment, eliminating the need for manual configuration or complex centralized control while ensuring network usability.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The operational role of each device (access point or terminal) is dynamically determined based on the parameter of maximum connectable device number. Devices change their operational parameters adaptively - those with sufficient capacity become access points, while those with limited capacity become terminals, optimizing network formation without manual intervention.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If any device is selected as access point without capacity verification, then network formation is simplified, but reliability deteriorates due to potential disconnections

Engineering Contradiction:
Improvenetwork formation simplicityVSAvoidconnection stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

Before network formation occurs, each device preliminarily determines its maximum connectable device number and compares it with the required capacity. This preliminary assessment ensures that only devices with sufficient capacity are selected as access points, preventing future disconnections while maintaining automated, simple network formation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system incorporates feedback mechanisms where devices exchange information about their maximum connectable device numbers during the network formation process. This feedback allows the network to self-select appropriate access points based on actual capacity, ensuring both simplicity and reliability without complex manual configuration.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS10938645B2Communication apparatus and control method to create wireless network to communicate with another communication apparatus
Publication Date: 2021.03.02 CANON KK
  • US10938645B2 patent drawing
  • US10938645B2 patent drawing
  • US10938645B2 patent drawing

AI summary

A communication apparatus communicates with another communication apparatus that can operate as a creating apparatus creating a wireless network or as a participating apparatus participating in a wireless network created by a creating apparatus, and determines, when the another communication apparatus operates as the creating apparatus, whether a number of connectable apparatuses is greater than or equal to a predetermined value. When the number of connectable apparatuses is greater than or equal to the predetermined value, the communication apparatus provides the another communication apparatus with communication parameters to be used for operating as the creating apparatus. When the number of connectable apparatuses is less than the predetermined value, the communication apparatus provides the another communication apparatus with communication parameters to be used for operating as the participating apparatus.