UWB Wireless Pairing via MAC and Magic Numbers
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Solution Overview
Problem
The existing method for pairing ultra-wide-band (UWB) devices requires an extra coaxial cable for connection, which is costly and inconvenient, and lacks efficient methods for secure pairing and unpairing.
Innovation Solution
A wireless pairing method using a 3-way handshake process with MAC addresses, pairing magic numbers, and pairing indices to establish and manage secure pairing and unpairing between UWB devices, eliminating the need for a coaxial cable and enhancing communication security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coaxial cable connection is used for pairing UWB devices, then pairing security and interference avoidance are improved, but device complexity and cost increase due to extra cable requirements
Solution Approach 1:
The patent replaces the mechanical coaxial cable connection system with a wireless electromagnetic field-based pairing system. UWB devices transmit pairing information through electromagnetic waves, eliminating the need for physical cable connections while maintaining pairing security through cryptographic authentication mechanisms.
Solution Approach 2:
The patent introduces pairing information frames containing authentication data as an intermediary mechanism. These frames carry pairing magic numbers, device identifiers, and security credentials that enable secure wireless pairing without requiring physical connection, acting as a digital mediator between devices.
2Reliability
If coaxial cable connection is used for pairing UWB devices, then pairing security is improved, but ease of operation deteriorates due to cable deployment requirements
Solution Approach 1:
The patent replaces the mechanical cable plugging and unplugging operations with wireless electromagnetic communication. Users simply need to initiate pairing through software interfaces, and the devices automatically establish secure connections through wireless exchange of pairing information frames, dramatically improving ease of operation.
Solution Approach 2:
The patent enables devices to automatically perform pairing authentication and connection establishment without manual cable handling. The system self-manages the pairing process by automatically exchanging pairing information frames, verifying credentials, and establishing secure connections, reducing user effort to simple initiation actions.
3Ease of operation
If wireless pairing without cable is implemented, then ease of operation and cost are improved, but pairing security and interference avoidance may deteriorate
Solution Approach 1:
The patent uses pairing information frames as secure intermediaries that carry authenticated data between devices. These frames include pairing magic numbers, device identifiers, and security credentials that verify legitimate pairing partners, preventing unauthorized connections and ensuring security in the wireless environment.
Solution Approach 2:
The patent implements bidirectional verification where devices exchange pairing information frames and mutually authenticate each other. Both devices verify received pairing data against their own credentials, providing feedback confirmation that ensures secure pairing before establishing communication, preventing interference from unauthorized devices.
Data Source
AI summary
A wireless device triggers pairing or un-pairing between the wireless device and another wireless device. The wireless device further exchanges media access control (MAC) addresses, pairing magic numbers (PMNs), and pairing indices with the another wireless device so as to establish the pairing with the another wireless device upon the condition that the wireless device triggers the pairing. The wireless device further exchanges the MAC addresses, the PMNs, and the pairing indices with the another wireless device so as to establish the unpairing with the another wireless device upon the condition that the wireless device triggers the unpairing. The pairing magic numbers are operable to identify the pairing between the wireless device and the another wireless device. The pairing indices are operable to launch the MAC addresses, the PMNs, and the pairing indices.