UWB Proximity Payment Priority Determination
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Solution Overview
Problem
In IoT environments, UWB secure ranging using out-of-band communication faces connection delay issues due to limitations in simultaneous BLE sessions, affecting the reliability and efficiency of proximity payments.
Innovation Solution
A method involving UWB communication where electronic devices broadcast initiation messages, exchange identification and certificate information, and determine priorities to facilitate secure ranging and payment transactions, thereby addressing connection delays and enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UWB secure ranging uses out-of-band communication, then security is improved, but connection delay increases due to limitations in simultaneous BLE sessions
Solution Approach 1:
The patent applies preliminary action by establishing UWB-based priority determination before the actual payment transaction. The system pre-determines connection priorities based on UWB ranging results and distance information, so that when multiple devices are present, the payment terminal already knows which device should be connected first. This eliminates the need for complex real-time priority negotiation during the payment process, reducing connection delay while maintaining security through pre-established priority rules.
Solution Approach 2:
The patent uses UWB communication as an intermediary mechanism to resolve the contradiction between security and connection speed. Instead of relying solely on OOB BLE communication for both security and priority determination, the system introduces UWB as a separate intermediary channel that provides fast distance-based priority information. This intermediary UWB channel allows the system to quickly identify the target device without blocking the secure OOB communication channel, thus reducing connection delay while preserving security.
2Productivity
If multiple electronic devices perform UWB communication simultaneously, then productivity is improved, but connection delay increases due to session limitations
Solution Approach 1:
The system performs preliminary priority determination using UWB communication before initiating the payment transaction. By pre-calculating which device has the highest priority based on distance and UWB ranging results, the payment terminal can immediately start the secure ranging process with the correct device without waiting for complex selection protocols. This preliminary action enables multiple devices to be present and processed simultaneously while avoiding connection delays.
Solution Approach 2:
The patent implements dynamic priority assignment where the system adapts its connection sequence based on real-time UWB ranging results. When multiple devices are detected, the system dynamically determines priorities based on their distances and UWB communication performance, allowing the most suitable device to be connected first. This dynamic approach enables efficient processing of multiple devices while minimizing connection delay by optimizing the connection sequence based on actual device conditions.
Data Source
AI summary
The present disclosure provides a UWB-based safe proximity payment method. A method of a first electronic device of the present disclosure may comprise the steps of: broadcasting a UWB initiation message including certificate information of the first electronic device; receiving, from at least one second electronic device, a UWB response message including identification information of a payment application included in the second electronic device and certificate information of the payment application; and determining a priority of the at least one second electronic device on the basis of the UWB response message.