Called UE Missed Call Notification on VoLTE Signaling Failure
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Solution Overview
Problem
In VoLTE systems, if the MT signaling interaction between the called UE and the core network device fails, the called user is not notified of an incoming call, leading to inadequate man-machine interaction and user experience.
Innovation Solution
The called UE receives a call request message, performs MT signaling interaction, and determines if the interaction succeeds within a preset duration; if it fails, it sends prompt information to the user, such as a missed call notification, to inform them of the unanswered call.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the called UE waits for successful MT signaling interaction before ringing, then the system maintains protocol correctness and avoids false notifications, but the called user cannot be notified of incoming calls when signaling fails
Solution Approach 1:
The patent applies preliminary action by setting up a backup notification mechanism that activates before the signaling interaction fully completes. When the preset duration expires without successful signaling completion, the UE proactively notifies the user about the incoming call, rather than waiting for definitive signaling success. This ensures call information is not lost even when signaling fails.
Solution Approach 2:
The patent introduces an intermediary timeout mechanism that mediates between the signaling interaction process and the user notification system. The preset duration acts as an intermediary time window that allows the system to determine whether signaling will succeed before committing to a notification decision, balancing protocol correctness with user awareness.
2Ease of operation
If the called UE sends prompt information immediately when signaling fails, then the user experience is improved with timely notifications, but the system may generate false notifications if the failure is temporary
Solution Approach 1:
The patent applies partial action by implementing a preset duration timeout rather than immediate notification upon any signaling failure. This partial waiting period filters out temporary failures while still providing timely notification for genuine failures, balancing user experience with notification accuracy without requiring excessive waiting.
Solution Approach 2:
The patent uses preliminary anti-action by establishing a timeout mechanism that prevents premature notifications. The preset duration acts as a preliminary check that counteracts the tendency to notify too early, ensuring that notifications are only sent when the signaling failure is confirmed to persist beyond the timeout period.
3Loss of information
If the system implements timeout detection and prompt notification, then incoming calls are notified even when signaling fails, but the device complexity increases
Solution Approach 1:
The patent applies self-service by implementing a simple timeout-based detection mechanism that automatically determines signaling success or failure without requiring complex external intervention. The UE itself monitors the signaling interaction duration and autonomously decides when to notify the user, reducing the need for additional system components.
Solution Approach 2:
The patent uses parameter changes by introducing a preset duration timeout parameter that controls the notification behavior. This single parameter adjustment allows the system to adapt between different notification strategies without changing the fundamental call processing architecture, maintaining simplicity while improving information retention.
Data Source
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AI summary
Embodiments of the present disclosure provide an incoming call processing method, user equipment, and a storage medium. The method includes: receiving, by a called user equipment UE, a call request message sent by a core network device, and performing MT signaling interaction with the core network device based on the call request message; determining, by the called UE, whether the MT signaling interaction succeeds within preset duration; and sending, by the called UE, prompt information to a called user based on a phone number of calling UE when the called UE determines that the MT signaling interaction fails within the preset duration. In this way, the called user can notice a current incoming call of the calling UE based on the prompt information.