Centralized eSIM Profile Management for Distributed Mobile Network Testing
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Solution Overview
Problem
Existing test systems for mobile networks with eSIM profiles lack the capability to manage and test eSIMs efficiently, particularly in distributed environments, requiring geographical decoupling and remote provisioning without physical SIM card swaps.
Innovation Solution
A managing system and test system that utilize an eUICC unit to host eSIM profiles centrally, with a downloadable assistant module and VPN client for masking geographical locations, enabling eSIM profile management and testing across distributed sites using IP connectivity and VPN connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If eSIM profiles are managed in a centralized location using an eUICC unit, then ease of operation and remote provisioning are improved, but device complexity and system architecture complexity increase
Solution Approach 1:
The system separates the eUICC hosting function from the test probe function, creating distinct modules (eUICC unit, download assistant module, VPN client module) that can operate independently. This segmentation allows centralized eSIM management while maintaining operational simplicity through modular design.
Solution Approach 2:
A VPN client module acts as an intermediary between the centralized eUICC unit and the mobile network, masking the geographical location of the eUICC unit. This intermediary enables remote provisioning operations to appear as if they originate from the local network location, simplifying operations while managing the complexity of distributed architecture.
2Adaptability or versatility
If geographical location of eUICC unit is masked using VPN, then adaptability and remote testing capability are improved, but device complexity increases
Solution Approach 1:
The VPN client module creates a virtual representation of the eUICC unit's network presence, masking its actual geographical location. This copying mechanism allows the system to adapt to different network environments and perform remote testing without physical relocation, while the software complexity is contained within the modular VPN module.
3Productivity
If eSIM profiles are downloaded remotely without physical SIM swaps, then productivity and testing efficiency are improved, but reliability and security requirements increase
Solution Approach 1:
The download assistant module automatically manages eSIM profile downloads, installation, and configuration without requiring physical SIM card handling. This self-service capability significantly improves testing productivity by eliminating manual SIM swap operations. The system incorporates security measures including authentication mechanisms and encrypted communication channels to meet elevated reliability and security requirements.
Data Source
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AI summary
A managing system (7) for eSIM profiles has at a central site (8), an eUICC unit (9) and a central unit (CU, 10). The eUICC unit (9) is capable to host a multitude of eUICC cards (11). The eUICC unit (9) is in signal connection with a selectable download assistant module (12). The central unit (10) is in connection with the eUICC unit (9) to manage the eUICC unit (9). The download assistant module (12) is embodied to establish a connection with a network component (16) of a mobile network (2) at a local site. The local site (5) is connected to the central site (8) via an internet connection (18). A managing system results having enhanced capabilities for managing eSIM profiles. The managing system may be part of a test system further having at least one test probe (26) being in signal connection with the central unit (10) of the managing system (7).