Communication Connection Recovery After SIM Failure Using KI Data
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Solution Overview
Problem
Existing communication systems fail to establish connections when physical or virtual SIM cards malfunction, leading to disrupted communication services.
Innovation Solution
A method and apparatus that utilize locally stored or cloud-based Key Identifier (KI) card information to establish communication connections, ensuring continuity through alternative SIM card information even in the event of SIM card failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cloud SIM card information is acquired through a physical or virtual SIM card, then the terminal device can establish communication connections without physical SIM cards, but the system fails when the physical or virtual SIM card fails
Solution Approach 1:
The terminal device pre-acquires and stores multiple KI card information sets (roaming and non-roaming) before SIM card failure occurs. When SIM card failure is detected, the system immediately switches to using the pre-stored KI card information to establish connections, eliminating the need for real-time SIM card reading and ensuring continuous service availability
Solution Approach 2:
The patent introduces KI card information as an intermediary element that decouples the authentication process from the physical SIM card. By using KI card information stored in the terminal's memory rather than reading from the physical SIM card, the system establishes a reliable communication path that bypasses SIM card failures, enabling cloud SIM card information acquisition without dependency on physical card functionality
2Reliability
If multiple KI card information sets are stored to ensure connection success, then the success rate of establishing communication connections is improved, but the device complexity increases
Solution Approach 1:
The patent segments KI card information into distinct categories (roaming KI card information and non-roaming KI card information) and stores them in separate memory locations. This segmentation allows the system to efficiently manage and select appropriate KI card information based on the current network environment, reducing management complexity while maintaining multiple information sets for high reliability
Solution Approach 2:
The terminal device automatically detects SIM card failure and autonomously selects and switches to pre-stored KI card information without requiring user intervention. The system self-manages the complexity of multiple KI card information sets by implementing automatic detection, selection, and switching mechanisms, thereby maintaining high connection success rates while minimizing the operational burden on users
Data Source
AI summary
Present invention relates to an apparatus and a method for establishing communication connections. The method includes: in response to a failure of a SIM card, acquiring first KI card information, establishing a first communication connection to a cloud SIM card management platform based on the first KI card information; acquiring cloud SIM card information from the cloud SIM card management platform over the first communication connection; and establishing a second communication connection based on the cloud SIM card information. In the case that the multi-SIM terminal device establishes the second communication connection based on the cloud SIM card information, the first communication connection may be disconnected, and the KI card information may be released. With the solutions, a success rate of establishing the first communication connection may be ensured on the premise of saving fees for users.