eUICC Profile Eligibility Pairing for Compatible SM-DP+ Downloads
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Solution Overview
Problem
Existing mobile network operator (MNO) systems lack the ability to ensure that downloaded profiles are compatible with the device capabilities before initiation, leading to potential installation failures and errors due to unknown device information.
Innovation Solution
An eligibility procedure is introduced before the download process, utilizing a QR code to gather device and eUICC information, classifying profiles into preferred, authorized, and forbidden types, ensuring compatibility and successful profile selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If profile download is initiated without device capability verification, then download speed is fast and process is simple, but profile compatibility fails and installation errors occur
Solution Approach 1:
The patent applies preliminary action by performing device capability verification and profile compatibility checking before the actual profile download is initiated. The LPA collects device information, queries the SM-DP+ server to verify profile compatibility, and receives eligibility confirmation before proceeding with the download, thereby ensuring reliability without adding significant complexity to the overall process.
2Reliability
If device information is collected and verified before download, then profile compatibility is ensured, but additional communication steps and processing time are required
Solution Approach 1:
The patent performs eligibility verification in advance by having the LPA collect device information and query the SM-DP+ server before download initiation. This preliminary compatibility check ensures that only compatible profiles are downloaded, avoiding installation failures and re-attempts, thereby justifying the additional preparation time through improved success rates.
3Productivity
If MNO books profile without knowing device capabilities, then profile booking is simple and fast, but incompatible profiles may be selected leading to installation failures
Solution Approach 1:
The patent implements feedback by having the LPA query the SM-DP+ server with device capability information before profile download. The server responds with eligibility confirmation or rejection based on compatibility assessment, providing feedback that guides the download decision. This ensures that MNOs can efficiently book profiles while maintaining compatibility through automated verification.
4Reliability
If dynamic eligibility check is performed after download, then compatibility can be verified, but installation errors occur and require error profile re-download
Solution Approach 1:
The patent performs eligibility verification before download rather than after, preventing installation errors before they occur. By checking device capability compatibility in advance and confirming profile eligibility through server verification, the system avoids the need for error correction and re-download, thereby eliminating the time loss associated with failed installations.
Data Source
AI summary
Provided is a method for informing a mobile network operator server which profile of a profile type should be downloaded from a SM-DP+, Subscription Manager—Data Preparation, to a secure element comprised in a device, the SM-DP+ storing profiles classified in three categories: Preferred profile type, Authorized profile type and Forbidden profile type. The method includes method generating, by the mobile network operator server or the SM-DP+ an Eligibility ID, and sharing the Eligibility ID between the mobile network operator server, the SM-DP+ and the device for pairing the messages exchanged between them; transmitting from the device to the SM-DP+ information on the secure element and the device; and transmitting from the SM-DP+ to the mobile network operator server the information on the profile type to be downloaded in the secure element, based on the information on the secure element and the device. Other embodiments are disclosed.