eUICC Profile Switching via Parameterized Authentication Command
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Solution Overview
Problem
Existing subscriber identity modules require multiple commands to switch between profiles, especially in temporary situations like emergencies or device tests, leading to increased operational effort and complexity.
Innovation Solution
A subscriber identity module that temporarily activates an alternative profile using a specially parameterized authentication command, allowing automatic switching between profiles without continuous monitoring, reducing the need for multiple commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a command ProfileEnable is sent to activate an alternative profile, then the alternative profile can be utilized for special situations, but two commands are required to switch back and forth between profiles, increasing operational effort
Solution Approach 1:
The system automatically manages profile switching based on authentication commands. When an authentication command with a specific network parameter is received, the system automatically activates the alternative profile and deactivates the standard profile without requiring manual intervention. After the special situation ends, the system automatically reverts to the standard profile, eliminating the need for manual ProfileEnable commands.
Solution Approach 2:
The authentication command includes a network parameter that serves as a trigger condition. When this parameter has a specific value indicating a special situation, the system changes the active profile state. This parameter-based control mechanism enables automatic profile switching based on the operational context without requiring manual profile management commands.
2Reliability
If manual profile switching is implemented, then profile activation is controlled, but the process requires continuous monitoring and multiple commands, increasing complexity
Solution Approach 1:
The system autonomously monitors authentication commands and automatically switches profiles based on the network parameter value. The continuous monitoring function is built into the authentication processing mechanism itself, eliminating the need for separate monitoring processes or manual command sequences, thereby reducing complexity while maintaining control.
Solution Approach 2:
The system pre-configures the authentication command structure to include the network parameter that determines profile activation. This preliminary design of the authentication mechanism embeds the profile switching logic, so that profile changes occur automatically as part of the authentication process without requiring additional complex control structures.
3Adaptability or versatility
If alternative profile is activated for temporary situations, then special operations can be performed, but manual deactivation is required, increasing operational steps
Solution Approach 1:
The system automatically detects when the special situation has ended (when authentication commands no longer require the alternative profile) and automatically deactivates it, reverting to the standard profile. This eliminates the manual deactivation step and reduces the time required to complete profile switching operations.
Data Source
AI summary
A subscriber identity module (eUICC), comprises profiles for the utilization of a mobile terminal that include at least a first profile and at least a second profile, of which the second profile (Pr1, Pr2) is devised as an active profile. The first profile is designed as a root profile (PrR) which in a normal state of the subscriber identity module is in an inactive state, and which is devised to be activated in response to an authentication command (AUTHENTICATE) received at the subscriber identity module. The authentication command is specially parameterized for the root profile (PrR) with a specific root value of the network parameter (P2) to be activated during a change-over period. The initially active second profile (Pr1, Pr2) is deactivated during the change-over period. After the end of the change-over period, the first profile (PrR) is again deactivated and the second profile (Pr1, Pr2) is again activated.