Communication Device DPP Connectivity Verification After Authentication
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Solution Overview
Problem
Existing Wi-Fi connection establishment methods using the Device Provisioning Protocol (DPP) do not adequately address situations where communication between devices fails despite a successful connection, leading to user inconvenience.
Innovation Solution
The communication device and terminal device exchange confirmation information to verify connectivity after establishing a Wi-Fi connection, allowing the terminal device to confirm whether communication is executable, enhancing user convenience by providing clear feedback on connection status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the terminal device only checks authentication response without connectivity verification, then the connection establishment process is simple, but the user cannot confirm whether actual communication is executable
Solution Approach 1:
The patent applies preliminary action by having the terminal device send a connectivity confirmation packet to the communication device before finalizing the connection establishment. This allows the terminal device to verify actual communication executability in advance, obtaining connectivity confirmation information that tells whether the Wi-Fi communication is executable, thus resolving the information loss problem without significantly increasing process complexity.
2Reliability
If the terminal device sends connectivity confirmation packet, then connectivity can be verified, but additional communication steps are required
Solution Approach 1:
The connectivity confirmation packet is sent as a preliminary action during the connection establishment process, allowing verification to occur before the connection is fully finalized. This ensures reliable connectivity verification while integrating the time cost into the overall establishment process rather than adding separate post-connection verification steps.
Solution Approach 2:
The patent implements feedback by having the communication device respond to the connectivity confirmation packet with information indicating whether communication is executable. This feedback mechanism provides reliable connectivity verification by returning actual communication status to the terminal device, enabling informed connection decisions.
3Ease of operation
If no connectivity confirmation is provided, then the protocol implementation is simple, but user convenience deteriorates due to lack of clear connection status feedback
Solution Approach 1:
The patent directly addresses user convenience by implementing a feedback mechanism where the terminal device receives connectivity confirmation information indicating whether Wi-Fi communication is executable. This provides clear connection status feedback to the user, enhancing ease of operation by eliminating uncertainty about connection success, while the protocol complexity increase is minimal and localized to the confirmation exchange.
Data Source
AI summary
A communication device may: execute a Device Provisioning Protocol (DPP) process according to the DPP of a Wi-Fi standard, wherein the DPP process includes: receiving an authentication request in which a bootstrapping key of the communication device is used from a terminal device; in a case where the authentication request is received from the terminal device, sending an authentication response to the terminal device; and after the authentication response has been sent to the terminal device, receiving first connection information from the terminal device, and in a case where the first Wi-Fi connection between the communication device and the first access point is established, the communication device may send confirmation information to the terminal device, wherein the confirmation information is used by the terminal device for executing connectivity confirmation.