eSIM Profile Fallback for SSP Bundle Download Failures
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Solution Overview
Problem
Existing SSP terminals face issues with bundle installation failures, necessitating a method to switch to an eSIM profile download procedure when bundle download fails.
Innovation Solution
The method involves transferring SSP and terminal information to an SPB manager, determining compatibility, generating a family identifier-specific error code, and performing an eSIM profile download using the error code when bundle installation is impossible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the SSP terminal performs bundle download procedure, then the terminal can obtain service through bundle installation, but the procedure may fail due to compatibility issues or server processing failures
Solution Approach 1:
The system dynamically switches between bundle download procedure and eSIM profile download procedure based on real-time compatibility assessment and error conditions. The SPB manager evaluates terminal information and SSP information to determine the appropriate download method, allowing the system to adapt its operation mode rather than being fixed to a single procedure.
Solution Approach 2:
The system changes the operational parameters by transitioning from bundle-based service delivery to eSIM profile-based service delivery. This parameter change is triggered by compatibility mismatches or download failures, where the system switches the fundamental download mechanism while maintaining the same service provisioning goal.
2Productivity
If the terminal switches to eSIM profile download procedure, then service provisioning continues despite bundle download failure, but the system complexity increases due to multiple download procedures
Solution Approach 1:
The SPB manager acts as an intermediary that coordinates between the terminal and both bundle download and eSIM profile download procedures. It receives terminal information, assesses compatibility, determines the appropriate download method, and manages the transition between procedures, thereby reducing the complexity burden on the terminal itself.
Solution Approach 2:
The system implements a universal service provisioning mechanism that can operate through multiple download procedures (bundle download and eSIM profile download). The SPB manager provides multi-functional capability by supporting both traditional bundle-based provisioning and modern eSIM-based provisioning, allowing the system to serve diverse terminal types and scenarios through a single unified architecture.
3Measurement precision
If the system provides detailed error codes for switching to eSIM procedure, then the switching accuracy improves, but the information processing overhead increases
Solution Approach 1:
The error code system is segmented into family identifier-specific error codes, where each family identifier corresponds to a specific error category or condition. This segmentation allows the system to provide precise error information tailored to the specific failure mode while keeping the overall error code structure manageable and efficient to process.
Data Source
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AI summary
A communication method and a system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The communication method and system includes intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.