Wireless Home Phone Emergency Call Location Validation
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Solution Overview
Problem
Conventional emergency call service technologies, such as E911, face challenges in accurately routing emergency calls from wireless home phones (WHPs) by lacking precise address information and location validation, which can lead to delayed or incorrect emergency responses.
Innovation Solution
The enhanced WHP system determines if address information is stored in data stores like the Master Street Address Guide (MSAG) and Selective Routing Database (SRDB), and if not, sends Mobility E911 Phase I and Phase II location information to the Public Safety Answering Point (PSAP), ensuring accurate location identification and facilitating faster emergency responses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional E911 services are used for wireless home phones, then emergency calls can be routed through wireless networks, but accurate location information and address details are not provided, leading to delayed or incorrect emergency responses
Solution Approach 1:
The system performs preliminary validation of address information against MSAG and SRDB databases before the emergency call is placed. This advance verification ensures that accurate location data is ready and available when needed, eliminating delays during the actual emergency response.
Solution Approach 2:
The patent introduces an intermediary validation mechanism that acts as a bridge between the wireless home phone and the emergency response system. This intermediary component verifies address information against master databases and ensures data accuracy before transmission to PSAP, improving location precision without adding response time.
2Reliability
If address information is not validated against master databases, then the system operation is simpler, but incorrect or incomplete address data is transmitted to emergency services
Solution Approach 1:
The system performs self-validation by automatically checking address information against master databases (MSAG, SRDB) without requiring external intervention. This self-service approach ensures reliable address data while keeping the system architecture relatively simple, as the validation is integrated into the existing call routing process.
Solution Approach 2:
The validation process provides feedback on address information quality by comparing submitted data against master databases. This feedback mechanism ensures high reliability of address information transmitted to emergency services, while the automated nature of the feedback loop prevents significant increases in system complexity.
Data Source
AI summary
An enhanced wireless home phone (WHP) component for use in an emergency call service network is presented herein. A method can include in response to determining that address information representing an address corresponding to a subscriber identity associated with a wireless service has been included in a data store corresponding to an emergency telecommunication service, determining whether a location of a wireless communication device associated with the subscriber identity satisfies a defined condition with respect to a distance of the wireless communication device from the address; and in response to determining that the location of the wireless communication device satisfies the defined condition, and in response to determining that a communication corresponding to the emergency telecommunication service has been received from the wireless communication device, sending the address information directed to a public safety answering point device.