eSIM Eligibility Checking via OEM Server Validation
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Solution Overview
Problem
The challenge lies in determining the compatibility of an electronic Subscriber Identity Module (eSIM) with a wireless device, particularly when the device is under a subsidy lock, leading to frustration for customers as incompatible eSIMs cannot be activated, resulting in wasted resources and poor user experience.
Innovation Solution
A system where a device initiates a session with an OEM server to verify device information and secure element data, using cryptographic signatures to determine eligible eSIM types, ensuring compatibility before provisioning, thereby preventing the installation of incompatible eSIMs and enhancing user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If eSIM provisioning is performed without compatibility verification, then provisioning speed is improved, but eSIM activation failure rate increases
Solution Approach 1:
The patent performs compatibility verification between the eSIM profile and the wireless device before completing the provisioning process. The carrier server checks device information ( subsidy lock status, device ID, IMEI) against the eSIM profile requirements in advance, identifying incompatibilities before the eSIM is fully provisioned to the device. This preliminary action prevents activation failures while maintaining efficient provisioning for compatible devices.
2Reliability
If compatibility verification is performed before eSIM provisioning, then eSIM activation success rate is improved, but provisioning complexity increases
Solution Approach 1:
The patent introduces a carrier server as an intermediary between the eSIM profile and the wireless device. The carrier server maintains a database of device information and eSIM profile requirements, and performs the compatibility verification logic. This intermediary handles the complexity of verification algorithms, device information management, and profile matching, keeping the device and provisioning system relatively simple while ensuring reliable activation.
3Loss of substance
If eSIM compatibility checking is implemented, then resource waste is reduced, but processing time increases
Solution Approach 1:
The compatibility verification is performed as a preliminary check before full eSIM provisioning occurs. By checking device information and profile compatibility in advance, the system identifies incompatible eSIMs before they are fully deployed to devices. This prevents waste of eSIM resources on incompatible devices while keeping the additional processing time minimal, as the verification uses pre-collected device information rather than requiring full provisioning and testing.
Data Source
AI summary
Embodiments provided herein determine if an electronic subscriber identity module (eSIM) associated with a requested service can be installed in a secure element (SE) housed in a wireless device. Before requesting deployment of an eSIM suitable for the requested service from an eSIM delivery server, a carrier server asks that an original equipment manufacturer (OEM) server validate that an eSIM corresponding to a customer request should be deployed. The OEM server obtains information about the wireless device and information about the SE. When the carrier server requests validation, the OEM server evaluates the wireless device information and/or the SE information. If the OEM server indicates that deployment of the eSIM should proceed, the OEM server also indicates the eSIM type that is compatible with the wireless device and with the SE housed in the device.