MSC-Based SMS Alert Routing for Targeted Cell Site Delivery
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Solution Overview
Problem
Current SMS-based emergency alert systems are inefficient as they send the same message to all subscribers regardless of location, cannot tailor delivery to specific geographic areas, and fail to reach roamers, leading to resource wastage and time-consuming processes, especially during emergencies.
Innovation Solution
The system uses a Mobile Switching Center (MSC) to route emergency alert messages to specific cell sites within an alert area by determining capable MSCs and cell IDs, allowing for targeted delivery to subscribers registered in those areas, including roamers, through a processor that maps cell coverage and uses static or dynamic alert area definitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If SMS messages are sent to all subscribers regardless of location, then all subscribers receive the alert message, but resources are wasted and the process is time-consuming
Solution Approach 1:
The system applies local quality by tailoring alert message delivery to specific geographic areas. Instead of uniformly sending messages to all subscribers, the system identifies and targets only those subscribers located within the alert area using cell ID and MSC information, thereby optimizing resource usage while maintaining reliable delivery to relevant recipients.
Solution Approach 2:
The system segments the subscriber base by geographic location and network coverage area. By dividing subscribers into those within the alert area and those outside, the system can selectively deliver messages only to the relevant segment, improving both resource efficiency and delivery precision during emergencies.
2Reliability
If SMS messages are sent to all subscribers, then comprehensive coverage is achieved, but the system cannot tailor delivery to specific geographic areas
Solution Approach 1:
The system enables geographic targeting by incorporating cell ID and MSC information into the alert message routing process. This allows the system to adapt message delivery to specific geographic areas, providing localized alert distribution while maintaining comprehensive coverage within the target area.
Solution Approach 2:
The system performs preliminary actions by pre-establishing the relationship between cell IDs, MSCs, and geographic areas. This preparatory mapping enables rapid geographic targeting when alerts are issued, allowing the system to quickly identify and deliver messages to the correct geographic areas without delay.
3Ease of operation
If the same alert message is created for each individual subscriber, then personalized delivery is possible, but the process is inefficient and time-consuming
Solution Approach 1:
The system merges the alert message creation process by generating a single standardized alert message that is then distributed to multiple subscribers. This eliminates the need to create individualized messages for each subscriber while still achieving targeted delivery through geographic filtering based on cell ID and MSC information.
Solution Approach 2:
The system applies universality by using a single alert message template that serves all subscribers within the target geographic area. This universal message approach maintains delivery customization through geographic targeting while significantly improving creation efficiency by avoiding redundant message generation for each subscriber.
4Reliability
If traditional SMS routing is used, then messages are sent to all subscribers, but the system cannot send messages to roamers
Solution Approach 1:
The system introduces MSC (Mobile Switching Center) information as an intermediary to enable roamer detection and message delivery. By using MSC as a mediator, the system can identify roamers who have temporarily registered with a different network and ensure they receive alert messages, thereby improving delivery completeness while maintaining adaptability to mobile subscribers across network boundaries.
Data Source
AI summary
SMS based alert messages are routed to subscribers via a Mobile Switching Center (MSC) such that SMS alert messages can be provided to specific cell sites. Also, SMS alert message can be provided to all subscribers registered in a specific cell site, including roamers. When an MSC receives one alert message, it routes that one message to all subscribers known to the MSC. In an example embodiment, an emergency alert message along with an indication of the alert area is received by an emergency alert server. MSCs capable of facilitating cellular coverage for the alert area are determined. Cell ID (cell sites) associated with the MSC are determined, and the alert message is routed to subscribers currently registered in the cell ID.