eUICC Profile Change Communication Technology Detection
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Solution Overview
Problem
Existing methods for managing subscriber identity modules (SIMs) in mobile networks face challenges during profile changes, particularly when technology changes occur, leading to loss or impairment of transmission capability, especially during autonomous profile changes within the SIM without server instruction.
Innovation Solution
A method where the subscriber identity module determines the technology before sending a message to the server, ensuring technology-compliant transmission by using a targeted approach, which includes determining the technology used by the profile and using specific communication paths and protocols like 3-way handshake protocols to maintain continuous communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a profile change is performed autonomously within the subscriber identity module without server instruction, then the profile switching capability is improved, but the transmission capability and reachability of the terminal device are lost or impaired
Solution Approach 1:
The patent applies preliminary action by determining the technology type of the new profile before actually sending the profile change notification message to the server. This preliminary technology determination ensures that the subsequent message transmission uses the correct protocol and communication path, preventing loss of transmission capability. The technology type is identified in advance through checking profile information or attempting communication protocol detection, so that when the message is sent, the appropriate transmission method is already known.
2Adaptability or versatility
If the subscriber identity module switches between profiles using different technologies, then the profile versatility is improved, but the reachability and transmission capability of the terminal device are lost or impaired
Solution Approach 1:
The patent applies dynamics by making the communication method adaptive and dynamic based on the technology type of the profile being activated. The system dynamically determines whether to use 3GPP or 3GPP2 communication protocols based on the profile's technology type, and dynamically selects appropriate communication paths (data connection, SMS, voice call). This dynamic adaptation allows the system to maintain transmission capability while supporting multiple technology types.
Solution Approach 2:
The patent applies parameter changes by modifying communication parameters such as the communication protocol type and transmission path based on the profile's technology type. When switching between different technology types (3GPP vs 3GPP2), the system changes the communication parameters accordingly, ensuring that the transmission capability is maintained by using the correct parameter set for each technology type.
3Device complexity
If no technology determination step is performed before message transmission, then the communication process is simplified, but the message may not be transmitted in a technology-compliant manner
Solution Approach 1:
The patent applies self-service by enabling the subscriber identity module to autonomously determine its own technology type and select the appropriate communication method without requiring external assistance from the server. The eUICC independently checks its profile information to identify the technology type (3GPP or 3GPP2) and independently decides which communication path to use, making the system self-sufficient and eliminating the need for complex server-side technology detection.
Data Source
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AI summary
The invention relates to a method for communicating a subscriber identity module (eUICC), which is implemented or can be implemented in a terminal and in which at least one profile for use of the mobile terminal in a mobile communications network is configured, to a server, wherein a message is sent from the subscriber identity module to the server. The method is characterized in that, before sending the message, a step of identifying a technology is carried out in the subscriber identity module (eUICC), in which it is determined which technology corresponds to the profile, and the sending process is carried out in compliance with the technology. The communication can contain in particular notification of a profile change performed in the subscriber identity module.