Dual Mode Device Geolocation for VoIP Access Points
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Solution Overview
Problem
Current Voice over Internet Protocol (VoIP) services lack reliable geographic location data for customer premises equipment (CPE), leading to potential misdirection of emergency services due to inaccurate or incorrect location information.
Innovation Solution
A system and method utilizing dual mode devices with both cellular and WiFi transceivers to triangulate and determine the geographic location of access points by leveraging carrier-managed networks, integrating GPS data, and updating databases dynamically to ensure accurate location information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If VoIP services use static CPE location registration, then service setup is simple, but location accuracy deteriorates when CPE is physically moved
Solution Approach 1:
The patent transforms the static location registration system into a dynamic one by continuously updating CPE location information through periodic GPS measurements and cellular triangulation. The system automatically detects location changes and updates the service provider database, ensuring location accuracy remains current without requiring manual user intervention.
Solution Approach 2:
The system implements feedback mechanisms where the dual mode device continuously monitors its own location via GPS and cellular networks, compares it with registered location data, and automatically reports discrepancies to the service provider. This closed-loop feedback ensures location information remains accurate while maintaining simple service setup.
2Measurement precision
If dual mode devices continuously update location data using both cellular and WiFi networks, then location accuracy improves, but device complexity and energy consumption increase
Solution Approach 1:
The patent employs partial action by selectively using location determination methods based on availability and accuracy requirements. The system prioritizes GPS data when available, supplements with cellular triangulation when GPS is unavailable or less accurate, and uses WiFi positioning as a supplementary source. This selective approach achieves high location accuracy without continuously activating all positioning systems, thereby reducing device complexity and energy consumption.
3Reliability
If the system uses multiple wireless networks for position determination, then location reliability improves, but the amount of data processing and network coordination required increases
Solution Approach 1:
The patent merges multiple location determination sources (GPS, cellular triangulation, WiFi positioning) into a unified location estimation process. The dual mode device integrates data from both cellular and WiFi networks, combining their respective strengths to achieve reliable location determination. This consolidation approach improves location reliability while managing data processing complexity through integrated algorithms.
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
This approach provides reliable and accurate geographic location data for access points and CPE, enhancing emergency services by ensuring that location information is constantly updated and accurate, reducing the risk of misdirection.
Implementation Method 1
A carrier-managed system such as the cellular network, is leveraged to directly determine or triangulate geographic locations of the dual mode device and then the access point
Data Source
AI summary
In one embodiment, a carrier-managed system such as the cellular network or the Global Positioning System (GPS), is leveraged to directly determine or triangulate geographic locations of the dual mode device (fig. I, 102) and then the access point (fig.1, 110, 1 12). Advantageously, a service provider may constantly and automatically update its database (fig.1, 108) with the geolocation of APs and associated devices to thereby provide accurate information and improved emergency services.