eSIM Profile Management for Distributed Mobile Network Testing
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Solution Overview
Problem
Existing test systems for mobile networks struggle to efficiently manage and test eSIM profiles, particularly in distributed environments, due to the need for physical SIM card swapping and limited geographic flexibility in remote provisioning and testing processes.
Innovation Solution
A managing system and test system that utilize an eSIM Multiplexer (eUICC unit) for hosting eSIM profiles, enabling centralized management and testing with methods for downloading and managing eSIM profiles across different geographical locations, using VPN connections to mask the geo-location of download assistants and test probes, and supporting various mobile services including 2G, 3G, 4G, 5G, and IoT technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If physical SIM cards are used in traditional test systems, then SIM card management is straightforward with direct physical access, but distributed testing and geographic flexibility are limited
Solution Approach 1:
The system separates the SIM card physical form factor from the SIM profile data. The eUICC hardware remains in the test probe while the profile can be remotely downloaded from any geographic location, enabling distributed testing without physical SIM swapping.
Solution Approach 2:
The system introduces a profile download assistant and remote provisioning infrastructure as intermediaries between the test probe and the SIM profile source. This allows geographic decoupling where the profile can be fetched from remote locations while the eUICC remains locally housed.
2Adaptability or versatility
If eSIM profiles are remotely provisioned across distributed locations, then geographic flexibility and distributed testing are improved, but system complexity increases
Solution Approach 1:
The test probe with embedded eUICC can universally accept and test multiple different eSIM profiles from various geographic locations and mobile network operators. The same hardware infrastructure supports both centralized and distributed testing modes, reducing overall system complexity.
Solution Approach 2:
The profile download assistant automatically manages the complex tasks of profile ordering, downloading, and installation without requiring manual intervention. The system self-configures the provisioning process, reducing operational complexity despite the enhanced distributed capability.
3Adaptability or versatility
If eSIM profiles are downloaded from remote locations, then geographic flexibility is improved, but download accuracy and profile matching may deteriorate
Solution Approach 1:
The system implements feedback mechanisms where the test probe verifies profile download success and correctness. The profile download assistant monitors the provisioning process and can request re-downloads if errors occur, ensuring accurate profile installation despite remote operations.
Solution Approach 2:
The system performs preliminary validation and configuration before the actual profile download. The profile download assistant pre-configures download parameters and verifies target eUICC readiness, reducing errors in remote profile provisioning operations.
Data Source
AI summary
A managing system for eSIM profiles has at a central site, an eUICC unit and a central unit. The eUICC unit is capable to host a multitude of eUICC cards. The eUICC unit is in signal connection with a selectable download assistant module. The central unit is in connection with the eUICC unit to manage the eUICC unit. The download assistant module is embodied to establish a connection with a network component of a mobile network at a local site. The local site is connected to the central site via an internet connection. 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 being in signal connection with the central unit of the managing system.