Proximity-Based Access Using Dynamic Radio Scanning
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Solution Overview
Problem
Existing device authentication methods require user input, such as passwords or biometrics, which can lead to delays and power consumption issues due to the need for frequent radio scanning in proximity-based access scenarios.
Innovation Solution
A method that uses a secondary communication channel to trigger enhanced scanning modes in devices, allowing for automatic authentication based on proximity without user input, by sending notifications over a network to switch from low-power to high-power discovery modes when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If frequent radio scanning is performed to detect proximity quickly, then detection speed is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic scanning frequency adjustment where the radio scanning behavior changes based on operational context. The system switches between low-power scanning mode during normal operation and high-frequency scanning mode when authentication is required, optimizing both power consumption and detection speed according to actual needs
Solution Approach 2:
The system changes the scanning parameter (frequency/duty cycle) based on operational state. When a resource device is detected or authentication is needed, the scanning frequency parameter is increased to improve detection speed; otherwise, it is reduced to conserve power
2Reliability
If user input is required for authentication, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The system performs automatic authentication without requiring user input. The trusted device automatically provides authentication credentials when proximity is detected, and the resource device automatically validates and grants access, eliminating the need for manual password entry or biometric verification
Solution Approach 2:
Authentication credentials are pre-configured and stored in the trusted device during device pairing. When proximity-based authentication is needed, the pre-stored credentials are automatically utilized without requiring real-time user input, thus maintaining security while improving ease of operation
3Reliability
If enhanced discovery mode is activated continuously, then detection reliability is improved, but power consumption increases
Solution Approach 1:
The system employs periodic scanning instead of continuous scanning. The radio operates in low-power mode during intervals and activates enhanced discovery mode periodically or event-driven, maintaining detection reliability while significantly reducing overall power consumption
Solution Approach 2:
The patent introduces a message notification system as an intermediary that triggers enhanced discovery mode only when necessary. A resource device can send a message to trigger the trusted device to activate enhanced scanning, providing on-demand detection reliability without continuous power consumption
Data Source
AI summary
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for proximity-based access. In some implementations, an electronic device receives a first message over a network over a first communication channel. In response to receiving the first message, the electronic device increases a frequency that the electronic device scans for messages over the second communication channel. After increasing the frequency that the electronic device scans for messages over the second communication channel, the electronic device receives a second message from a secured resource over the second communication channel. The electronic device determines that the electronic device is located within a predetermined level of proximity to the secured resource, and in response, sends authentication data to the secured resource over the second communication channel.