Communication Device Wireless Connection Switching
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Solution Overview
Problem
The existing Device Provisioning Protocol (DPP) does not provide a method for establishing a second wireless connection between a communication device and a second external device while maintaining a connection with a first external device, specifically failing to describe how to disconnect from the first device before connecting to the second device.
Innovation Solution
A communication device is configured to disconnect its first wireless connection with a first external device, obtain and output specific information using its public key, receive an authentication request, send an authentication response, and then establish a second wireless connection with a second external device using received connection information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a first wireless connection is maintained between the communication device and a first external device, then the communication device can continue to communicate with the first external device, but the communication device cannot establish a second wireless connection with a second external device
Solution Approach 1:
The communication device performs preliminary actions by determining whether a first wireless connection exists before attempting to establish a second wireless connection. If a first connection is detected, the device proactively disconnects it in advance, ensuring the wireless interface is available for the new connection without conflict.
Solution Approach 2:
The system dynamically adjusts its connection state by transitioning from a connected state to a disconnected state, and then to a newly connected state. The wireless interface dynamically changes its operational mode based on the current connection status, enabling flexible adaptation between different external devices.
2Adaptability or versatility
If the communication device attempts to establish a second wireless connection while maintaining the first connection, then connection versatility is improved, but connection reliability deteriorates due to connection conflicts
Solution Approach 1:
Before attempting to establish the second wireless connection, the communication device performs a preliminary check to determine if a first wireless connection exists. Based on this determination, it proactively disconnects the first connection in advance, preventing potential connection conflicts and ensuring reliable establishment of the second connection.
Solution Approach 2:
The patent extracts the problematic first wireless connection from the system by disconnecting it, removing the source of conflict that would prevent successful establishment of the second connection. This separation allows the second connection to be established without interference from the first connection's resource occupation.
3Reliability
If the communication device disconnects the first wireless connection before establishing the second connection, then connection establishment reliability is improved, but connection continuity is reduced
Solution Approach 1:
The disconnection and reconnection process is executed rapidly and efficiently. The device quickly determines the current connection state, disconnects the first connection if necessary, and establishes the second connection in a streamlined sequence, minimizing the interruption time and maintaining overall system responsiveness.
Data Source
AI summary
A communication device (e.g., a printer) may establish a wireless connection in accordance with a device provisioning protocol (DPP) between the communication device and an external device (e.g., access point) in a state in which a wireless connection has already been established between the communication device and another external device (e.g., access point). The communication device may disconnect its wireless interface from a first external device prior to connecting to a second external device.