Edge Warning System for LTE Cell-Specific Emergency Alerts
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Solution Overview
Problem
Current LTE-based mobile networks lack the capability to provide localized and location-specific emergency responses and warnings within specific venues or areas, as existing systems are not conducive to mobile edge computing due to complexity and security concerns, and existing public warning systems have limitations in granularity and access control.
Innovation Solution
The Edge Warning System integrates mobile edge computing within the LTE Radio Access Network, enabling authorized personnel to issue location-specific warnings to individual cells or combinations of cells within a venue, using a Mobility Services Engine and Management and Network Operations components to manage and route warning messages, ensuring compatibility with existing LTE standards and public warning systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mobile edge computing is implemented at the cellular base station level, then location-specific emergency warnings can be delivered to individual cells within a venue, but the system complexity and security administration requirements increase
Solution Approach 1:
The system segments the warning distribution by dividing the service area into individual cells, each capable of receiving targeted warning messages. The Mobility Services Engine separates the warning generation and cell-specific routing functions, allowing precise location-based delivery while managing complexity through modular architecture.
Solution Approach 2:
The Mobility Services Engine acts as an intermediary component between the public warning system and the radio access network. It receives warning messages, determines affected cells, and routes them appropriately, thereby reducing the complexity at individual base stations while enabling location-specific delivery.
2Adaptability or versatility
If existing public warning systems are used, then broad-area emergency notifications can be issued, but the granularity and location-specific relevance of warnings are limited
Solution Approach 1:
The system enables different warning messages to be delivered to different cells based on local conditions and threat levels. Each cell can receive customized warnings appropriate to its specific location and situation, while the overall system maintains compatibility with broad-area public warning mechanisms.
3Productivity
If LIPA and STPTO mechanisms are used for local traffic offloading, then IP traffic can be routed locally, but special service definitions and SIM card capabilities are required
Solution Approach 1:
The warning routing functionality is extracted from the complex LIPA and STPTO mechanisms. Instead of requiring special SIM card capabilities and service definitions, the system uses the existing MME and Mobility Services Engine to route warning messages to affected cells, simplifying deployment while maintaining local processing capability.
Data Source
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AI summary
Disclosed is a mobile edge computing system that provides localized emergency responses and warning exclusively to UEs within a venue or area, and provides location- specific warning within the venue or area. The system includes a component that aggregates the Sl-mme interface between the MME and a plurality of baseband units and provides read and write access to the Sl-mme interface. The disclosed mobile edge computing system can issue cell-specific public warning system (PWS) messages that are customized for and transmitted exclusively to each individual cell within the venue.