UE Notification Reception Management for Wireless Disaster Alerts
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Solution Overview
Problem
In existing Earthquake and Tsunami Warning Systems (ETWS), user equipment (UE) continues to receive secondary notification messages even after the warning notification provider has stopped delivering them, leading to power drainage and potential missed notifications due to unclear specifications regarding message reception management during cell selection, reselection, radio access technology changes, and service interruptions.
Innovation Solution
A method and communication device for managing notification message reception in a wireless communication system, where UE reception is controlled based on configuration information broadcasted or paged by the network, including primary and secondary notification message existence information, scheduling, and connection states to prevent unnecessary power consumption and missed messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE continues to receive secondary notification messages without clear stop conditions, then notification delivery completeness is improved, but power consumption increases
Solution Approach 1:
The patent implements a feedback mechanism where the UE monitors for notification messages and uses specific criteria (time threshold, message count threshold, or network indication) to determine when to stop receiving secondary notification messages. This feedback loop allows the UE to dynamically adjust its reception behavior based on actual network conditions, ensuring complete notification delivery while preventing unnecessary power consumption after the warning event has been fully communicated.
2Use of energy by moving object
If UE stops receiving secondary notification messages early, then power consumption is reduced, but notification delivery completeness may be compromised
Solution Approach 1:
The patent establishes predetermined stopping criteria before the UE needs to make real-time decisions about message reception. These criteria include a time threshold (stopping after receiving messages for a specified duration), a message count threshold (stopping after receiving a specific number of messages), or network indications (stopping when the network explicitly signals cessation). This preliminary framework ensures that the UE can confidently stop reception without compromising notification completeness.
3Ease of operation
If UE receives configuration information from network, then notification reception management is improved, but device complexity increases
Solution Approach 1:
The patent makes the UE capable of processing multiple types of configuration information from the network using the same underlying mechanism. The UE can handle time-based thresholds, message-count-based thresholds, and explicit network indications all through a unified processing framework. This multi-functionality approach simplifies the overall system by avoiding the need for separate processing paths for different notification management scenarios.
Data Source
AI summary
A method of managing notification message reception corresponding to natural disaster warning for a user equipment of a wireless communication system includes managing the notification message reception according to configuration information broadcasted or paged by a network of the wireless communication system, wherein the configuration information broadcasted or paged by the network of the wireless communication system is existence information of a notification message sent by a serving cell.