Wi-Fi Multicast Frame Verification Information Transmission
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Solution Overview
Problem
Wi-Fi devices without screens or input keys struggle to access routers as they cannot input verification information, limiting the applicability of existing methods that require special transport protocols.
Innovation Solution
The method involves separating verification information into sub-verification information, numbering it, and generating multicast frames to transmit and receive the information, allowing devices to connect without manual input using existing Wi-Fi protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a special transport protocol is used to transmit verification information, then devices without screens or input keys can access Wi-Fi, but the method is limited in range of uses and not applicable to all Wi-Fi devices
Solution Approach 1:
The patent applies universality by making the existing Wi-Fi transport protocol multi-functional. Instead of creating a special protocol, the invention enables the standard Wi-Fi protocol to carry verification information by utilizing unused fields in the protocol structure (such as the BSSID field and data portion). This allows the same protocol to serve both its original purpose and the new function of transmitting verification information, thereby expanding adaptability without increasing protocol complexity
Solution Approach 2:
The patent applies parameter changes by modifying how existing protocol fields are utilized. The verification information is embedded by changing the parameter usage of the transport protocol - specifically, by placing verification information in fields that can be dynamically interpreted. This allows the protocol parameters to serve dual purposes: standard Wi-Fi communication and verification information transmission, resolving the contradiction between versatility and complexity
2Ease of operation
If verification information is transmitted manually, then devices with screens and input keys can connect to Wi-Fi, but devices without screens or input keys cannot input the verification information
Solution Approach 1:
The patent applies self-service by enabling devices to automatically receive and process verification information without manual input. The verification information is transmitted through the Wi-Fi protocol itself, and the receiving device automatically extracts and uses this information for connection. This eliminates the need for manual input operations while maintaining broad device compatibility, as the automation works across all Wi-Fi capable devices regardless of their input capabilities
Solution Approach 2:
The patent applies the intermediary principle by using the Wi-Fi transport protocol as a mediator to deliver verification information to devices. Instead of requiring direct user input or a special device-specific protocol, the standard Wi-Fi protocol acts as an intermediary that automatically transmits the verification information from the network side to the device, enabling seamless connection for all device types
Data Source
AI summary
A method and a device for transmitting verification information are disclosed. The method includes following steps: separating the verification information into multiple sub-verification information; numbering the multiple sub-verification information of the verification information in accordance with sequence numbers of the multiple sub-verification information in the verification information; generating sets of multicast frames according to the multiple sub-verification information and the sequence numbers of the multiple sub-verification information; selecting one set of multicast frames to be filled with the length of the verification information; transmitting generated sets of multicast frames, when the overall length of the sub-verification information in the sets of multicast frames received by the recipient, equating to the length of the verification information in the sets of multicast information, recombining the sub-verification information to obtain the verification information according to the sequence numbers of the sub-verification information. A device for transmitting verification information are also disclosed.