Wi-Fi Communication Device DPP Channel Management

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Solution Overview

Problem

Existing wireless communication protocols, such as the DPP scheme, face inefficiencies in channel switching, leading to delayed signal reception due to mismatched channel usage between different communication states, affecting the speed and reliability of establishing connections between devices.

Innovation Solution

A communication device is configured to shift between different wireless communication states by using a specific channel for authentication and search signals, allowing it to respond promptly to incoming requests by fixing the DPP channel to a predetermined frequency, thereby ensuring timely signal reception and connection establishment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the printer uses the channel identical to the frequency channel used in the certain wireless network while in standby state, then the printer can receive authentication request, but the printer cannot respond to search signals from other communication schemes

Engineering Contradiction:

Improveauthentication request receptionVSAvoidmulti-scheme communication capability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The wireless interface dynamically switches between different operational modes: in the first mode, it responds to authentication requests using DPP scheme on a specific channel; in the second mode, it responds to search signals from other communication schemes. This dynamic adaptability resolves the contradiction by allowing the device to be reliable for DPP authentication while also being versatile for multi-scheme communication.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameters of the wireless interface based on the communication scheme being used. When DPP scheme is active, the interface is configured to respond to authentication requests on the DPP channel. When other schemes are active, the interface is configured to respond to search signals. This parameter switching enables both reliability for the current scheme and adaptability for other schemes.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If the communication device switches channels frequently to respond to different communication schemes, then the device can maintain multi-scheme compatibility, but the connection establishment speed is reduced

Engineering Contradiction:

Improvemulti-scheme communication capabilityVSAvoidconnection establishment speed

Core Design Contradiction:

Adaptability or versatilityVSSpeed

Solution Approach 1:

The system performs preliminary actions by pre-configuring the wireless interface to respond to both authentication requests and search signals without requiring channel switching during operation. The interface is prepared in advance to handle multiple communication schemes simultaneously on the same channel, eliminating the need for frequent channel changes and thus maintaining fast connection establishment speed while ensuring multi-scheme compatibility.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If the wireless interface responds to both authentication requests and search signals simultaneously, then the device achieves high adaptability, but the channel usage becomes complex and inefficient

Engineering Contradiction:

Improvemulti-scheme communication capabilityVSAvoidchannel management complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the functionality of responding to authentication requests and search signals into a single unified channel configuration. Instead of requiring separate channels or complex channel switching mechanisms, the wireless interface is designed to handle both types of signals simultaneously on the same channel through a unified processing approach. This reduces channel management complexity while maintaining high adaptability for multiple communication schemes.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11357065B2Communication device capable of executing process for establishing wireless connection according to first scheme or second scheme of Wi-Fi standard and non-transitory computer-readable recording medium storing computer readable instructions for communication device

Publication Date: 2022.06.07 BROTHER KOGYO KK

AI summary

A communication device may output information according to a first scheme in a case where a first instruction is obtained in a first state, shift to a second state in a case where the first instruction is obtained in the first state, and shift to a third state in a case where a second instruction is obtained in the second state. In the first state, an authentication request according to the first scheme is not responded to and a search signal according to a second scheme is not responded to. In the second state, the authentication request using only a target channel can responded to and the search signal is not responded to. In the third state, the authentication request using only the target channel can be responded and the search signal using only the target channel can be responded to.