Emergency Alert Transmission via Physical Layer Signaling

Solution Overview

Problem

Existing emergency alert transmission systems require all layers of the middleware and application layers to function, leading to increased costs and power consumption, and are not suitable for simple and inexpensive receivers without tuners, which hinders efficient and timely dissemination of critical emergency information.

Innovation Solution

The system transmits emergency alert information using the packet structure of the physical layer or the extension header of the data link layer, allowing receivers to process and display alerts without needing all middleware and application layers, thus reducing startup time and power consumption, and enabling alerts to be displayed on simple devices like digital signage and streetlights.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If emergency alert information is transmitted using traditional middleware and application layers, then the information can be processed by conventional receivers, but the startup time increases and power consumption rises

Engineering Contradiction:

Improveemergency alert deliveryVSAvoidstartup time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent segments the emergency alert transmission by separating the alert information into distinct packet structures that can be transmitted independently of full middleware and application layer processing. The alert packets contain essential information (alert ID, target area, message) that can be extracted and processed at lower protocol layers, enabling receivers to display alerts without completing full stack initialization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts the critical emergency alert information from the conventional protocol stack and places it in a simplified packet structure at the physical or data link layer. This extraction allows receivers to process alerts without needing to initialize the complete middleware and application layers, directly reducing startup time while maintaining alert delivery reliability.

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If emergency alert information is transmitted using traditional middleware and application layers, then the information can be processed by conventional receivers, but power consumption increases

Engineering Contradiction:

Improveemergency alert deliveryVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent segments the emergency alert transmission by separating the alert information into distinct packet structures that can be transmitted independently of full middleware and application layer processing. The alert packets contain essential information (alert ID, target area, message) that can be extracted and processed at lower protocol layers, enabling receivers to display alerts without completing full stack initialization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts the critical emergency alert information from the conventional protocol stack and places it in a simplified packet structure at the physical or data link layer. This extraction allows receivers to process alerts without needing to initialize the complete middleware and application layers, directly reducing startup time while maintaining alert delivery reliability.

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of manufacture

If simple receivers without tuners are used, then cost is reduced and power consumption is lowered, but the ability to receive and process emergency alerts is lost

Engineering Contradiction:

Improvereceiver costVSAvoidemergency alert reception

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces an intermediary mechanism where base stations act as mediators between the emergency alert transmission system and simple receivers. Base stations receive and process the alert packets, then retransmit them through existing broadcasting channels that simple receivers can decode, enabling alert reception without requiring tuners or complex receiving hardware in end devices.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent uses copying by having base stations receive the emergency alert packets and create retransmitted versions through existing broadcasting infrastructure. Simple receivers can then copy and display the alert information from these retransmitted signals without needing direct access to the original transmission channel or complex tuning capabilities.

Inventive Principle:

Principle #26Copying

Data Source

PatentEP3048795B1Transmission device, transmission method, reception device, reception method, and computer program

Publication Date: 2020.03.18 SATURN LICENSING LLC

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AI summary

Transmission of emergency alert information using a broadcasting service in an appropriate manner is achieved. A transmitter 200 (broadcasting station) inserts a wake-up signal as signaling of emergency alert information, describes information including a scale (category), type, occurrence time, and occurrence position of disaster, and version information as a message of emergency alert information, and transmits the message using a packet structure of a physical layer. A simple and inexpensive receiver 300 equipped with only a receiving antenna for broadcasting and a demodulator can receive the message of emergency alert information. An evacuation direction and a map or route to a shelter can be displayed using digital signage or streetlights, and an evacuation route can be instructed using streetlights.