Code Generator Converts Legacy Location Data to PIDF-LO
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Solution Overview
Problem
Current emergency services call systems face challenges in efficiently converting and routing location information from legacy formats to Next Generation 9-1-1 (NG9-1-1) standards, particularly in handling diverse device types and location precision, which can lead to inaccuracies and inefficiencies in dispatching emergency services.
Innovation Solution
A system and method that utilize a code generator to transform E2 interface formatted objects into Presence Information Data Format Location Objects (PIDF-LO), which are then sent to an Emergency Call Routing Function (ECRF) to identify the appropriate Public Safety Answering Point (PSAP) for emergency services calls, ensuring compliance with NG9-1-1 standards by selecting relevant fields based on the type of end-user device and validating location information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If legacy format location information is used for emergency services calls, then compatibility with existing systems is maintained, but accuracy and efficiency in routing to NG9-1-1 systems deteriorates
Solution Approach 1:
The patent introduces an intermediary conversion system that translates legacy E2 interface location information into NG9-1-1 compatible PIDF-LO format. This mediator handles the format conversion between legacy systems and next-generation systems, ensuring routing accuracy while managing conversion complexity through standardized transformation processes.
Solution Approach 2:
The system transforms location information by changing its format parameters from legacy E2 interface structures to NG9-1-1 PIDF-LO structures. This parameter transformation enables compatibility with modern routing systems while preserving the essential location data needed for accurate emergency service dispatch.
2Loss of information
If all location information fields are converted, then completeness of location data is improved, but processing time and system complexity increases
Solution Approach 1:
The conversion system extracts only the essential location information fields needed for NG9-1-1 routing from the legacy E2 interface data. By selecting and converting only the critical fields rather than all fields, the system maintains location data completeness while reducing processing time and computational complexity.
Solution Approach 2:
The system performs partial conversion of location data fields, focusing on the most critical information elements required for emergency service routing. This selective approach ensures sufficient location data completeness for accurate dispatch while minimizing unnecessary processing overhead.
3Measurement precision
If device-specific field selection is implemented, then accuracy for specific device types is improved, but system complexity and difficulty of operation increases
Solution Approach 1:
The system dynamically selects and converts location fields based on the type of end-user device making the emergency call. This dynamic adaptation allows the system to optimize location precision for each device type (e.g., mobile phones, landlines, VoIP devices) while automatically managing the complexity of device-specific processing through automated detection and routing logic.
Data Source
AI summary
A code generator can receive a data object from a legacy network gateway location interwork function (LNG-LIF) for an emergency services call initiated by an end-user device, wherein the data object includes location information in a legacy format. The code generator can select fields of the location information for the emergency services call. The code generator can convert data object in the legacy format into a presence information data format location object (PIDF-LO) based on the selected fields of the location information in the data object for the emergency services call. The PIDF-LO embeds location information for the end-user device. Additionally, the code generator can send the PIDF-LO to the LNG-LIF, wherein the PIDF-LO is a format consumable by an Emergency Call Routing Function (ECRF).