eUICC Firmware Update Group Event Authentication
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Solution Overview
Problem
The existing eUICC firmware update process is cumbersome and inefficient, particularly in server-side load management and bidirectional authentication, especially when multiple eUICCs in a terminal device need to connect to a remote server for updates.
Innovation Solution
The proposed solution simplifies event registration and bidirectional authentication by using a group event identifier to manage multiple eUICCs simultaneously, allowing for concurrent updates and authentication, reducing the server-side load through the SM-DP+ and OPS servers, and optimizing the process for terminal devices to download and apply firmware updates efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one service corresponds to multiple eUICCs and separate event registration requests are initiated for each eUICC, then the eUICC firmware version update service can be provided to multiple eUICCs, but the event registration process becomes cumbersome and server-side load increases
Solution Approach 1:
The patent merges multiple separate event registration requests into a single group event registration request that can serve multiple eUICCs simultaneously. The SM-DS server maintains a mapping relationship between group event identifiers and individual eUICC event identifiers, allowing one service to correspond to multiple eUICCs without requiring separate registration processes for each eUICC.
2Reliability
If multiple eUICCs simultaneously establish connections to a same remote server for bidirectional authentication, then each eUICC can be securely authenticated, but the authentication efficiency is relatively low and server-side load increases
Solution Approach 1:
The patent enables multiple eUICCs to perform bidirectional authentication with a remote server simultaneously through a single group event record. The server processes authentication for multiple eUICCs in parallel rather than sequentially, maintaining security through proper authentication protocols while significantly improving efficiency by reducing the number of separate authentication cycles required.
Solution Approach 2:
The patent establishes group event records in advance that map group event identifiers to individual eUICC event identifiers. This preliminary setup allows the system to quickly route and process multiple eUICC authentication requests through a single group event record without requiring complex real-time decision-making, thereby improving authentication efficiency while maintaining security.
3Ease of operation
If separate event records are maintained for each eUICC, then individual eUICC management is simplified, but the overall system complexity and server load increase when managing multiple eUICCs
Solution Approach 1:
The patent implements a two-layer event record structure: group event records that manage multiple eUICCs at a high level, and individual eUICC event records that maintain detailed information for each eUICC. This segmentation allows the system to benefit from both aggregated management (reducing overall complexity) and individual management (maintaining ease of operation for each eUICC) simultaneously.
Solution Approach 2:
The patent combines multiple individual eUICC event records under a single group event record that shares common attributes such as service type and target identifier. This merging reduces the total number of event records that need to be managed at the system level while preserving individual eUICC-specific information in the subordinate records, thereby reducing system complexity without sacrificing individual management capability.
Data Source
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AI summary
A method for authenticating and updating an eUICC firmware version and a related apparatus are provided. The method includes the following steps: receiving first information sent by a terminal device, where the first information includes a target identifier (S101); searching a currently stored event record for a target event record, where a group event identifier in the target event record matches the target identifier in the first information (S 102); sending the target event record to the terminal device (S 103), where the target event record is used to enable the terminal device to download an eUICC firmware version update package (S104); and updating a firmware version of an eUICC of the terminal device based on the eUICC firmware version update package (S105). According to the method, an event registration process and a bidirectional authentication process in a process of providing an eUICC firmware version update service can be simplified, thereby improving efficiency.