eUICC Profile Transfer Without Physical SIM Cards
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Solution Overview
Problem
Existing mobile communication systems face inconvenience when users need to physically obtain a new SIM card for different mobile operators, especially when traveling, and existing solutions like roaming are expensive and limited by contractual agreements.
Innovation Solution
A method and device for managing and installing eUICC profiles using over-the-air (OTA) technology, allowing remote downloading and selection of SIM modules, enabling seamless network access and profile transfer between terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users physically obtain a new SIM card for different mobile operators, then network access is enabled, but convenience deteriorates and physical SIM card requirements increase
Solution Approach 1:
The patent implements digital copying of SIM card functionality through eUICC profiles. Instead of requiring physical SIM cards, the system creates and transfers digital profile copies that contain all necessary authentication and service information. This allows users to obtain network access by downloading profile copies rather than acquiring physical cards, directly resolving the contradiction between convenience and physical card requirements
Solution Approach 2:
The patent replaces the mechanical physical SIM card system with an electronic profile-based system. The traditional mechanical insertion and physical handling of SIM cards is substituted with electronic profile downloads, installations, and transfers via communication networks. This substitution eliminates the need for physical cards while maintaining network access functionality, thereby improving ease of operation and reducing physical substance requirements
2Reliability
If roaming services are used for network access in different regions, then network connectivity is maintained, but cost increases and contractual limitations are imposed
Solution Approach 1:
The patent implements dynamic profile switching capability that allows users to change their network access profiles on-demand. Instead of being locked into static roaming agreements, users can dynamically download, activate, and switch between different operator profiles from multiple carriers. This dynamic adaptability maintains reliable network connectivity while providing flexibility to choose the most suitable operator for each situation, resolving the contradiction between reliability and adaptability
3Adaptability or versatility
If eUICC profile transfer is implemented, then adaptability of network access improves, but device complexity increases
Solution Approach 1:
The patent implements self-service mechanisms for eUICC profile management where the terminal device autonomously handles profile downloads, installations, and transfers. The system includes automated authentication, profile validation, and conflict resolution capabilities that operate without requiring complex user intervention or manual configuration. This self-service approach enables high adaptability through easy profile switching while minimizing the perceived complexity for users, as the system manages the complexity internally through automated processes
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). A terminal includes a transmission/reception unit, and at least one processor for controlling the terminal so as to receive a movement request of the profile from a user, confirm profile movement information, transmit, to a profile server, a message for requesting an activation code, receive the activation code and a profile deletion need from the profile server, delete the profile, transmit the deletion result of the profile to the profile server, transfer the activation code to another terminal, receive the activation code from another terminal, transmit a message for requesting the profile to the profile server by using the activation code, receive a profile package from the profile server, and install the profile package.