Terminal Emergency Alert Filtering by Network Identifier
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Solution Overview
Problem
In a self-managed local 5G network, terminals may receive and erroneously display emergency information from a different network due to overlapping message IDs, leading to incorrect identification and potential ignoring of critical alerts.
Innovation Solution
A network system and terminal configuration that uses network identifiers to associate emergency information with specific networks, allowing terminals to receive and display only relevant emergency information based on their connected network, regardless of radio communication status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If message IDs are reused across multiple networks to increase coverage, then the probability of reaching terminals improves, but message ID duplication causes terminals to erroneously ignore or display wrong emergency information
Solution Approach 1:
The patent segments the message ID space by introducing a network identifier component. Instead of using a single shared message ID across networks, the system divides identification into two parts: network identifier (indicating source network) and message ID (indicating emergency type). This segmentation allows terminals to distinguish messages from different networks even when message ID portions overlap, resolving the contradiction between coverage and accuracy.
2Ease of operation
If terminals ignore duplicate message IDs within a time period to reduce false alerts, then notification frequency decreases, but legitimate emergency information from the same network may be incorrectly ignored
Solution Approach 1:
The patent implements a feedback mechanism where terminals monitor not only message ID duplication but also the network identifier association. The terminal maintains a record of received emergency information with both message ID and network identifier, and uses this feedback to intelligently determine whether to ignore or display new messages. This allows the system to distinguish between legitimate repeated alerts from the same network and spurious messages from other networks, resolving the contradiction between reducing false alerts and maintaining notification accuracy.
Data Source
AI summary
Base station transmits emergency information to a terminal existing in a radio communication service area of a base station to allow emergency information to be received by the terminal regardless of whether the terminal is communicatively connected to the base station, the emergency information being associated with first identification information configured for a network to which the base station is communicatively connected. In a case that the terminal receives the emergency information associated with the first identification information from the base station, the terminal configures only the emergency information received from the network to which the terminal is communicatively connected as a notification target, based on the first identification information associated with the emergency information.