eSIM Subscription Profile Loading via Combined Authentication Request
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Solution Overview
Problem
Users with embedded eSIM modules in mobile terminals face tedious processes when trying to transfer their subscription profiles to new devices, requiring complex manipulations to obtain and download the necessary server addresses and profile references.
Innovation Solution
A method involving a combined authentication and profile transfer request is sent to an authentication system, followed by a download request to a provisioning device using an activation code, allowing the subscription profile to be securely downloaded into the target mobile terminal's eSIM module, simplifying the process by leveraging existing authentication mechanisms and unique identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional SIM card is used, then users can easily change devices while keeping their SIM card, but embedded eSIM modules require complex procedures for profile transfer
Solution Approach 1:
The patent implements a profile transfer mechanism where the subscription profile is copied from the old SIM card to the new eSIM module through automated authentication and download procedures. The system retrieves the profile data from the network server and installs it in the target eSIM, eliminating manual configuration steps.
Solution Approach 2:
The patent introduces an authentication system as an intermediary between the user devices and the network server. This mediator handles the complex verification processes, activates the target eSIM, and coordinates the profile download, simplifying the user experience while managing the underlying complexity.
2Reliability
If manual configuration steps are required for eSIM profile download, then security can be maintained, but user complexity increases significantly
Solution Approach 1:
The patent performs preliminary authentication and activation actions before the actual profile download. The target eSIM is activated and authorized in advance through the authentication system, which verifies user credentials and prepares the profile for transfer. This ensures security measures are in place before sensitive operations occur.
Solution Approach 2:
The patent implements a feedback mechanism where the authentication system continuously verifies the legitimacy of profile transfer requests. The system receives authentication responses, validates credentials against the network server, and only proceeds with profile download when verification is successful, maintaining security through continuous validation.
Data Source
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Figure 2
AI summary
The invention relates to a method of loading, into a subscriber identification module (15) of a first mobile terminal (10), termed target mobile terminal, a subscription profile (PROFA), the method comprising: the emission (S21), by the target mobile terminal, of a combined request for authentication and transfer of profile to an authentication system (30), said request containing a user identifier (IdA) of the target mobile terminal; the reception (S35) in return, by the target mobile terminal, of a response message containing an activation code (AC); the emission (S41), by the target mobile terminal, of a request for downloading the subscription profile to a provisioning equipment item (50), said downloading request comprising the activation code; and, subsequent to a positive verification (S42) of the activation code by the provisioning equipment item, the downloading (S44) of the subscription profile into the subscriber identification module (15) of the target mobile terminal. The invention also relates to a mobile terminal (10), an authentication system (30), and a downloading system for implementing such a subscription profile downloading.