eSIM State Change Notification Delivery via Preliminary Action
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Solution Overview
Problem
Existing methods for managing electronic Subscriber Identity Modules (eSIMs) on embedded Universal Integrated Circuit Cards (eUICCs) in mobile devices often disrupt communication with Mobile Network Operator (MNO) network equipment when disabling or deleting eSIMs, leading to issues with proper notification delivery.
Innovation Solution
The implementation of in-advance notification messaging, where mobile device processing circuitry sends a command to the eUICC to delete or disable an eSIM, generating a notification before the state change, which is then retrieved and sent to the applicable network entity, ensuring successful delivery and maintaining eSIM credentials for authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If eSIM is deleted or disabled on eUICC, then eSIM state change is achieved, but communication with MNO network equipment is disrupted and notification delivery is interfered with
Solution Approach 1:
The system generates and transmits the notification before completing the eSIM state change operation. The notification is prepared in advance while the eSIM is still in its original state, allowing the MNO network to be alerted before the actual deletion or disabling occurs, thus preventing communication disruption and ensuring reliable notification delivery.
2Productivity
If traditional eSIM deletion method is used, then eSIM removal is achieved, but proper notification delivery to MNO network equipment is interrupted
Solution Approach 1:
The notification is generated and transmitted before the eSIM deletion is finalized. This preliminary action ensures that all necessary information about the state change is communicated to the MNO network equipment before the eSIM is completely removed, preventing any loss of information and maintaining management efficiency.
Solution Approach 2:
The system implements a feedback mechanism where the notification transmission status is tracked and confirmed. The processing circuitry receives feedback about the notification delivery status and uses this information to determine when to complete the eSIM deletion or disabling operation, ensuring complete and reliable information transfer.
Data Source
AI summary
Techniques to manage notifications for state changes of eSIMs of a mobile device are described. Processing circuitry of the mobile device provides a command to the eUICC to delete an eSIM. The eUICC changes the state of the eSIM to a locked state and generates a notification of the forthcoming state change before completion of the transition to the deleted state. The processing circuitry sends the notification to a provisioning server and provides to the eUICC a response indicating successful delivery of the notification, and the eUICC subsequently transitions the eSIM to the deleted state. While the eSIM is in the locked state, applications and files of the eSIM can be unusable. In some embodiments, credentials of the eSIM can be reused to re-authenticate with a wireless network in order to deliver the notification to the provisioning server.