Wi-Fi Device Dynamic Channel List Adaptation

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Solution Overview

Problem

Existing Wi-Fi devices often fail to properly connect to local Wi-Fi networks in different countries due to outdated channel lists, which do not align with the changing communication requirements and channel configurations.

Innovation Solution

A method for a Wi-Fi device to acquire channel information from broadcasted packets, determine target channel information, and use it to access the Wi-Fi network or provide a hotspot service, including updating pre-stored channel lists based on country codes and interference considerations, using features like DFS and TPC to ensure proper connectivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a Wi-Fi device uses a preset channel list, then the device can operate with stable pre-configured channels, but the device cannot adapt to changing local communication requirements and channel configurations in different countries

Engineering Contradiction:
Improveadaptability to local channel configurationsVSAvoidconnection reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements dynamic channel list updates by having the Wi-Fi device automatically acquire and update channel information from broadcasted packets in the local environment. The channel list transitions from a static preset to a dynamic structure that adapts to local conditions while maintaining connection reliability through automated updates.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses feedback from the local Wi-Fi environment by monitoring broadcasted packets containing channel information. This feedback mechanism allows the device to automatically adjust its channel list based on actual local conditions, resolving the contradiction between adaptability and reliability.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If the channel list is updated frequently to match local requirements, then the device can adapt to local networks, but the device complexity and update overhead increase

Engineering Contradiction:
Improvechannel list adaptabilityVSAvoidchannel update complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The Wi-Fi device performs self-service by automatically acquiring channel information from broadcasted packets and updating its own channel list without external intervention. This reduces device complexity by eliminating manual update processes while maintaining high adaptability to local networks.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent uses broadcasted packets as an intermediary mechanism to transfer channel information from local Wi-Fi devices to the target device. This intermediary approach simplifies the update process by leveraging existing Wi-Fi broadcast functionality rather than requiring complex direct communication protocols.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the device uses outdated channel information, then the device structure remains simple, but the device cannot properly connect to local Wi-Fi networks

Engineering Contradiction:
Improvenetwork connection reliabilityVSAvoidchannel information outdated
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The device performs preliminary actions by proactively acquiring channel information from broadcasted packets before attempting network connections. This ensures that the channel information is current and accurate, improving connection reliability while maintaining simple device structure through automated processes.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9992803B2Wi-Fi network connection method, Wi-Fi controller, and Wi-Fi device
Publication Date: 2018.06.05 NOKIA TECHNOLOGIES OY
  • US9992803B2 patent drawing
  • US9992803B2 patent drawing
  • US9992803B2 patent drawing

AI summary

A wireless fidelity (Wi-Fi) network connection method, a Wi-Fi controller and a Wi-Fi device. The Wi-Fi network connection method includes acquiring, by a first Wi-Fi device, at least one packet broadcasted by a second Wi-Fi device, where each packet includes channel information, determining, by the first Wi-Fi device, target channel information according to the channel information of the at least one packet, and performing, by the first Wi-Fi device according to the target channel information, Wi-Fi network access or providing a hotspot service for a user equipment.