Emergency SMS Geographic Data Routing via SMSC
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless data networks face challenges in accurately locating wireless phones during emergencies due to the need for the PSAP gateway to first interact with a network location platform before connecting to a Public Safety Answering Point (PSAP), and some wireless telephones may not support location services properly.
Innovation Solution
A Short Message Service Center (SMSC) determines if an SMS message is emergency-based by analyzing the destination code, and if so, transfers geographic data directly to a Public Safety Answering Point (PSAP) gateway, allowing for immediate location-based emergency response without requiring initial interaction with a network location platform.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the PSAP gateway interacts with the network location platform to locate the wireless telephone before connecting to the PSAP, then the location of the wireless phone can be obtained, but the emergency response time is delayed and the system complexity increases
Solution Approach 1:
The patent embeds geographic location data directly into the SMS message before the emergency call is initiated. The location information is prepared in advance and included in the message payload, so when the PSAP gateway receives the emergency SMS, the location is already available immediately without requiring subsequent interaction with the network location platform.
Solution Approach 2:
The patent extracts the location determination function from the network location platform interaction and incorporates it directly into the SMS message structure. By taking out the location data from the separate location platform process and embedding it in the SMS payload, the system eliminates the need for time-consuming platform interactions while maintaining accurate location information.
2Measurement precision
If the PSAP gateway interacts with the network location platform to locate the wireless telephone, then the location can be obtained, but the process becomes more complex and reliability decreases for devices without location service support
Solution Approach 1:
The patent enables the mobile device to self-generate and include its own geographic location data in the emergency SMS message. The device independently determines its location using its own capabilities (GPS, network-based location, or other methods) and embeds this information directly in the message, making the system reliable even when network location platform services are unavailable or the device has limited location service support.
Solution Approach 2:
The location data is prepared and embedded in the SMS message in advance, before the emergency call is initiated. This preliminary inclusion of location information ensures that the PSAP gateway receives complete location data immediately, eliminating reliance on subsequent platform interactions and ensuring service reliability for all devices regardless of their location service capabilities.
3Measurement precision
If the geographic location is obtained through network location platform interaction, then the location can be determined, but the number of network interactions increases and the process efficiency decreases
Solution Approach 1:
The patent merges the location data with the emergency SMS message into a single unified data structure. The geographic information is combined with the emergency alert content in the SMS payload, allowing the PSAP gateway to receive both the emergency notification and location information in one interaction, thereby eliminating separate platform interactions and improving processing efficiency.
Solution Approach 2:
The patent extracts location data from the separate network location platform process and embeds it directly into the SMS message payload. This extraction eliminates the need for additional platform interactions, reducing network traffic and improving emergency processing efficiency while maintaining accurate location information.
Data Source
AI summary
A Short Message Service Center (SMSC) receives a Session Initiation Protocol (SIP) message transferred User Equipment (UE). The SIP message has a Private Access Network Information (PANI) header with geographic data for the UE and also has a Short Message Service (SMS) message from the UE. The SMSC determines when a destination code from the SMS message indicates an emergency SMS message. When the emergency SMS message is indicated, the SMSC transfers an emergency Short Message Peer-to-Peer (SMPP) message for delivery to a Public Safety Answering Point (PSAP) gateway. The emergency SMPP message has the geographic data for the UE and also has the emergency SMS message. The PSAP gateway selects a PSAP for the UE based on the geographic data in the SMPP message and transfers the emergency SMS message to the selected PSAP.