eUICC Profile Download via Limited Network Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing eUICC technologies face high costs and low resource utilization in downloading subscription profiles, as they require preset profiles and cannot communicate with networks effectively without them.
Innovation Solution
A method and system that allow an eUICC terminal to connect to and download a profile from a target operator's network using a function-limited network connection, either by randomly connecting to a mobile network or purposefully selecting it, enabling successful registration with the mobile network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If preset subscription information (PP) is used for network connection, then the terminal can download a profile, but the resource utilization is low and costs are high because the PP cannot communicate with other devices in the network
Solution Approach 1:
The patent transforms the static, single-function PP into a dynamic entity that can adapt its capabilities. The eUICC is designed to switch between different operational states: initially using limited PP functionality for profile download, then transitioning to full network communication capabilities after profile installation. This dynamic transformation allows the system to optimize resource usage at each stage while achieving full adaptability ultimately.
Solution Approach 2:
The eUICC serves multiple functions: it acts as a minimal communication interface during the profile download phase, then becomes a full-featured subscription module after profile installation. This multi-functionality resolves the contradiction by allowing the same hardware component to provide different levels of network communication capability depending on the operational stage, thereby improving both versatility and resource utilization.
2Ease of operation
If an eUICC has no effective profile, then it cannot communicate with networks effectively, but it still needs to download a profile from the network
Solution Approach 1:
The system performs preliminary network attachment using the eUICC's basic identification capabilities before the profile is downloaded. The eUICC can initially attach to the network with minimal functionality just enough to establish a data connection for profile download. This preliminary action enables the subsequent profile download while maintaining sufficient network communication reliability through the basic attachment capability.
Solution Approach 2:
The network communication process is segmented into distinct phases: initial attachment phase with minimal eUICC functionality, profile download phase using the established connection, and full operation phase after profile installation. This segmentation allows the system to achieve ease of operation for profile download while maintaining reliability through structured, phased network interaction rather than requiring full functionality throughout the entire process.
Data Source
AI summary
Embodiments of the present invention disclose a subscription information download method, a related device, and a system. The method includes: receiving, by a first network device, a first request, where the first request is sent by a terminal after connecting to and attaching to a first network when the terminal has no effective profile, and is used to request to establish a network connection for downloading a profile; establishing, by the first network device, the network connection used for downloading the profile; and returning a response message for the first request to the terminal device, to inform the terminal device that the network connection has been successfully established.