Wireless Carrier Alert Distribution Accuracy
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Solution Overview
Problem
Current wireless alert distribution systems, such as CMAS, face inaccuracies as devices outside target geographic areas receive alerts intended for specific regions, leading to unnecessary alert dissemination.
Innovation Solution
The method involves identifying fully and partially encompassed wireless coverage areas within a target geographic area, allowing alerts to be broadcast only to devices within the target area, with fully encompassed areas receiving alerts regardless of location and partially encompassed areas requiring location verification before alert output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If alerts are broadcast in all coverage areas that partially or fully fall within the target geographic area, then the alert distribution coverage is improved, but devices outside the target geographic area receive unintended alerts
Solution Approach 1:
The patent applies local quality by differentiating alert distribution across two types of coverage areas: fully-encompassed coverage areas receive alerts without location verification, while partially-encompassed coverage areas require location verification. This localized differentiation ensures that devices outside the target geographic area do not receive unintended alerts, thereby improving alert distribution accuracy while preventing information loss through unintended dissemination.
2Reliability
If all devices in coverage areas determine whether their location is encompassed within the target geographic area, then alert distribution accuracy is improved, but processing load on devices and network control channels increases
Solution Approach 1:
The patent segments coverage areas into two distinct categories: fully-encompassed coverage areas and partially-encompassed coverage areas. This segmentation allows the system to apply different alert distribution strategies to each category, thereby improving alert distribution accuracy while minimizing processing load on devices and network control channels by avoiding unnecessary location verification in fully-encompassed areas.
3Reliability
If all devices in coverage areas determine whether their location is encompassed within the target geographic area, then alert distribution accuracy is improved, but network control channel load increases
Solution Approach 1:
The patent segments coverage areas into fully-encompassed and partially-encompassed categories, thereby reducing network control channel load by eliminating unnecessary location verification requests in fully-encompassed areas while maintaining alert distribution accuracy through targeted verification in partially-encompassed areas.
Solution Approach 2:
The patent extracts the location verification requirement from all coverage areas and applies it selectively only to partially-encompassed coverage areas. This extraction reduces network control channel capacity consumption by removing unnecessary verification requests from fully-encompassed areas while preserving alert distribution accuracy where needed.
Data Source
AI summary
After receiving an alert for distribution in a target geographic area, a wireless carrier network may identify a first set of one or more coverage areas that are entirely encompassed within the target geographic area and a second set of one or more coverage areas that are only partially encompassed within the target geographic area. In the first coverage-area set, the wireless carrier network may then broadcast the alert in a manner that directs a recipient device to output the alert regardless of the device's location. And in the second coverage-area set, the wireless carrier network may broadcast the alert in a manner that directs a recipient device to output the alert only if the device's location is encompassed within the target geographic area.