Location-Based Wireless Authentication System
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Solution Overview
Problem
Existing wireless communication systems lack efficient location-based authentication methods to provide varying tiers of service quality based on user location, leading to unauthorized access and inefficient service delivery.
Innovation Solution
A location-based authentication system that determines a device's position using a localization device and RF signals, delivering different tiers of wireless service based on predefined regions, with features like RF signal frequency increase, synthetic aperture radar, and acoustic signals for precise positioning and power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If password or key-based authentication is used, then service access is controlled, but user location-based service differentiation cannot be implemented
Solution Approach 1:
The patent combines location determination capability with authentication functionality into an integrated system. The authentication system not only verifies user identity but also determines user location using RF signals and localization devices, enabling both service access control and location-based service differentiation through a unified authentication mechanism.
Solution Approach 2:
The authentication system is designed to perform multiple functions: traditional identity verification using passwords or keys, location determination using RF signal analysis, and service tier assignment based on both identity and location. This multi-functional approach allows a single system to replace multiple separate systems.
2Adaptability or versatility
If location-based authentication is implemented, then service tier delivery is enabled, but system complexity increases
Solution Approach 1:
The patent introduces a localization device as an intermediary component that specializes in determining user location using RF signals. This separate localization module works in conjunction with the authentication system, allowing location-based service differentiation without significantly complicating the core authentication functionality. The localization device acts as a mediator between the authentication system and the service delivery mechanism.
3Measurement precision
If RF signal frequency is increased for positioning, then position determination accuracy is improved, but energy consumption increases
Solution Approach 1:
The system uses periodic RF signal transmission at different frequencies to determine user location. Instead of continuously transmitting high-frequency signals that would consume excessive energy, the system periodically transmits RF signals and uses the time-of-flight or signal characteristics to calculate position. This periodic approach maintains measurement precision while significantly reducing overall energy consumption compared to continuous high-frequency transmission.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure and efficient delivery of wireless services tailored to user location, allowing for faster access in authorized zones and remote charging, while preventing unauthorized access outside designated areas.
Implementation Method 1
the controller is adapted to increase the frequency of a first RF signal the second device transmits to the localization device
Implementation Method 2
determining the position of the first device relative to the second device from the first and second time stamps
Implementation Method 3
transmitting an RF signal from the second device to the first device where the RF signal includes, in part, a first time stamp, receiving the first RF signal at the first device
Implementation Method 4
a mixer adapted to downconvert the frequency of the first RF signal
Implementation Method 5
a bandpass filter adapted to filter out the components of the downconverted RF signal that fall outside a predefined frequency band
Implementation Method 6
an amplifier adapted to amplify the filtered RF signal
Implementation Method 7
the controller is further adapted to determine the position of the localization device by comparing the first RF signal to the amplified RF signal
Data Source
AI summary
A wireless service delivery system determines the position of a device requesting the wireless service and delivers a wireless service to the device if the device's position is determined to fall within a predefined region of a space. The wireless service delivery may deliver no service or a lower quality/slower service if the device is determined to fall outside the predefined region of the space. The coordinates of the points along the perimeter of the predefined region are stored in a memory and are optionally established during a setup phase by moving a localization device along the perimeter of the region of the space.