Cell Broadcast Alert System with Receipt Acknowledgement Feedback
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Solution Overview
Problem
Cell Broadcast (CB) alert messages in wireless communication networks lack the capability to acknowledge receipt, making it difficult to assess the effectiveness of emergency message delivery and strategize further actions during critical situations.
Innovation Solution
A method and system for managing CB alert messages that include sending CB alert messages to communication devices in an alert area through a wireless channel and receiving acknowledgement messages from these devices, using a CB alert system with a processor and memory to handle and manage CB alert messages, ensuring that each device with a CB message handling application can send acknowledgement messages back to the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If Cell Broadcast alert messages are sent to a large number of subscribers, then the coverage and reach of emergency information is improved, but the capability to track message receipt and assess delivery effectiveness deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where communication devices send acknowledgement messages back to the CB alert system after receiving alert messages. This feedback loop enables the system to track which devices have received alerts, assess delivery effectiveness, and identify devices that need re-notification, thereby resolving the contradiction between broad coverage and receipt tracking capability
Solution Approach 2:
The patent introduces an intermediary acknowledgement message as a mediator between the alert message transmission and the receipt confirmation. This intermediary element carries receipt information from the communication device back to the CB alert system, enabling tracking without requiring direct bidirectional communication for the alert itself
2Measurement precision
If acknowledgement messages are received from communication devices, then the message delivery assessment capability is improved, but the network traffic and system complexity worsen
Solution Approach 1:
The patent implements partial action by requiring acknowledgements only from devices that successfully receive and process alert messages, rather than requiring continuous bidirectional communication from all devices. This selective acknowledgement approach provides sufficient delivery assessment data without overwhelming the network with unnecessary traffic or complexity
Solution Approach 2:
The communication device's CB message handling application automatically generates and sends acknowledgement messages without requiring manual intervention or complex system coordination. This self-service mechanism simplifies the overall system architecture while maintaining accurate delivery tracking
Data Source
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AI summary
A method and a system for managing Cell Broadcast (CB) alert messages are provided. The method sends a CB alert message to a plurality of communication devices in an alert area through a wireless communication channel. The CB alert message is sent by a CB alert system. Further, each of the plurality of the communication devices includes a CB message handling application for handling such CB alert messages. The method further receives one or more acknowledgement messages from one or more communication devices. The one or more acknowledgement messages are received in response to receipt of the CB alert message at the plurality of communication devices. The one or more acknowledgement messages are received from the CB message handling application in respective communication devices.