eNB Warning Message Broadcast State Reporting
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Solution Overview
Problem
Current technologies lack a method for effectively reporting the broadcast state of warning messages from the network side, leading to inconsistencies and failure in message cancellation, particularly in scenarios like the Netherlands' NL-Alert system.
Innovation Solution
The proposed solution involves a method and device where an eNB receives a state request message from an MME to report the broadcast state of a warning message, including attributes and periods, and responds with the relevant broadcast state information, ensuring accurate reporting and handling of failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the network side does not implement a state reporting mechanism, then the system structure remains simple, but the broadcast state of warning messages cannot be reported accurately leading to inconsistencies
Solution Approach 1:
The patent implements a feedback mechanism where the eNB reports the broadcast state of warning messages back to the MME through state request and state response messages. This feedback loop enables the network side to accurately track and report whether warning messages have been successfully broadcast, resolved the inconsistency between CBC's cancellation decisions and actual network state, and maintained reasonable system complexity through standardized message exchanges
2Reliability
If the CBC cancels a warning message without state reporting, then the cancellation process is fast, but the cancellation may fail due to unknown network state
Solution Approach 1:
The patent applies preliminary action by having the eNB proactively report the broadcast state of warning messages before the CBC attempts cancellation. The state reporting mechanism pre-establishes accurate network state information, so when cancellation is needed, the CBC can immediately determine whether cancellation is necessary based on the pre-reported state, avoiding failed cancellation attempts and reducing overall processing time while improving reliability
Data Source
AI summary
Provided are methods and devices for reporting a broadcast state of a warning message. In the method, an evolved Node B (eNB) receives a state request message from a Mobile Management Entity (MME), wherein the state request message is used for requesting to report a broadcast state of a warning message; in response to the state request message, the eNB reports the broadcast state of the warning message to the MME. By means of the technical solution, the effect that a network side can report a broadcast state of a warning message according to a state request from a Cell Broadcast Center (CBC) is achieved.