Flexible Remote SIM Provisioning via Profile Image Segmentation
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Solution Overview
Problem
Existing remote SIM provisioning methods require additional adaptations and traffic to ensure compatibility of ready-made profiles with target eUICCs and devices, leading to increased provisioning time and costs.
Innovation Solution
A method involving a data generation server that generates and assigns multiple profile images with the same global identifier but differing functionality identifiers, allowing for dynamic selection and download of the appropriate profile image based on device capabilities, reducing the need for subsequent adaptations and optimizing communication volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ready-made profiles are downloaded to eUICC, then profile provisioning can be performed, but additional adaptations are required to ensure compatibility with target eUICC and device capabilities
Solution Approach 1:
The patent applies preliminary action by pre-generating multiple profile images with different functionality identifiers before the actual provisioning process. The data generation server creates profile images tailored to specific device capabilities in advance, so that when provisioning is needed, the compatible profile image can be directly selected and downloaded without requiring subsequent adaptations, thus resolving the contradiction between provisioning speed and provisioning time.
2Productivity
If ready-made profiles are downloaded to eUICC, then profile provisioning can be performed, but additional traffic is generated for adaptations
Solution Approach 1:
The system performs preliminary generation of multiple profile images with different functionality identifiers before provisioning. The data generation server prepares profile images tailored to specific device capabilities in advance, enabling direct selection and download of the compatible profile image without requiring subsequent adaptation traffic, thus reducing overall communication energy consumption.
Solution Approach 2:
The data generation server acts as an intermediary between the profile server and the eUICC. It receives device capability information, selects or generates the appropriate profile image, and provides it to the profile server for download. This intermediary layer eliminates the need for post-download adaptations by ensuring the correct profile image is selected beforehand, thereby reducing communication traffic.
3Adaptability or versatility
If ready-made profiles are downloaded to eUICC, then profile provisioning can be performed, but compatibility issues arise with different device capabilities
Solution Approach 1:
The patent applies segmentation by dividing profiles into multiple profile images, each with a specific functionality identifier that corresponds to different device capabilities. Instead of using a single generic profile, the system segments the profile into specialized versions tailored to specific device types, eliminating compatibility issues while avoiding the complexity of post-download adaptations.
Solution Approach 2:
The system applies local quality by creating profile images with specific functionality identifiers that match local device capabilities. Each profile image is locally optimized for particular device characteristics (e.g., NFC support, screen resolution), ensuring perfect compatibility without requiring complex adaptation processes.
4Adaptability or versatility
If multiple profile images are generated and stored, then flexible selection based on device capabilities is enabled, but data generation server storage requirements increase
Solution Approach 1:
The patent applies universality by designing profile images with functionality identifiers that can serve multiple device types. A single set of profile images with different functionality identifiers can be used across various device platforms, reducing the total storage requirement compared to maintaining completely separate profile sets for each device type, while still providing flexible selection capability.
Data Source
AI summary
A method, at a data generation server, for generation of a profile image for downloading the profile image from the profile server to an eUICC hosted in a device, is provided for the purpose of installing a profile corresponding to the profile image in the eUICC. The method includes the steps: Ga) provide, on the data generation server, at least one global identifier and at least a first functionality identifier and a second functionality identifier different from the first functionality identifier; Gb) generate, on the data generation server, at least a first profile image and a second profile image; Gc) assign the at least first and second profile images to the same global identifier; Gd) store the at least first and second profile image as profile images assigned to the same global identifier, for providing the first and second profile image to the profile server for download to eUICCs.