Emergency Mediation Server for Cross-Network UE Identification
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Solution Overview
Problem
Current cellular network systems face challenges in accurately identifying User Equipment (UE) within a defined geographic area, especially during emergency situations, as they are limited to single networks and cannot detect UEs in idle mode, leading to incomplete communication capabilities.
Innovation Solution
A method and system that establish geofenced areas to identify UEs by changing location area identifier values across multiple cellular networks, allowing for the collection of UE identities, including those in idle mode, by determining neighbor cells and using emergency mediation servers to coordinate communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If location area identifier values are changed across multiple cellular networks, then comprehensive UE identification capability is improved, but network coordination complexity increases
Solution Approach 1:
An emergency mediation server is introduced as an intermediary component that coordinates between multiple cellular networks. The server receives location area identifier change requests, manages the identification process across different networks, and consolidates UE identity information, thereby reducing the coordination burden on individual networks while maintaining comprehensive identification capability.
Solution Approach 2:
The emergency mediation server performs multiple functions including receiving emergency situation indications, managing location area identifier changes across different networks, identifying UEs in both idle and connected modes, and coordinating with multiple cellular networks. This multi-functional approach consolidates complexity into a single universal component.
2Reliability
If geofenced areas are established to identify UEs in idle mode, then UE detection capability is improved, but communication overhead increases
Solution Approach 1:
The system pre-establishes geofenced areas corresponding to emergency situations before UE identification is needed. By defining these geographic boundaries in advance and preparing the location area identifier change mechanism, the system can quickly identify UEs in idle mode within the geofenced area without requiring extensive real-time communication overhead when an emergency occurs.
3Area of stationary object
If multiple operator networks are coordinated for UE identification, then identification coverage is improved, but system complexity increases
Solution Approach 1:
The emergency mediation server acts as a central intermediary that manages coordination between multiple operator networks. It receives indications from emergency call centers, establishes geofenced areas, requests location area identifier changes from multiple networks, and consolidates UE identity information, thereby expanding identification coverage while centralizing and simplifying the coordination process.
Data Source
AI summary
A method that identifies user equipment (UE) in both idle mode and connected mode in a cellular network is performed when an indication of an emergency situation is received. The method can identify all UEs within a geofenced area. The geofenced area can be an arbitrary shape that is automatically or manually created. The emergency system receives unique identities of UEs in the geofenced area that are provided when the location area identifier value is changed.