Virtual SIM Profile Management for Wireless Carrier Switching
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Solution Overview
Problem
Conventional Subscriber Identity Modules (SIM) cards are cumbersome, difficult to manage, and limit user flexibility in switching between wireless service providers, especially when traveling, as they require physical replacement and are tied to a single account.
Innovation Solution
A method and system for provisioning wireless devices with virtual SIM profiles, allowing users to download and manage multiple SIM profiles wirelessly, enabling seamless switching between carriers and reducing the need for physical SIM cards by using a trusted service manager to store and distribute SIM data securely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional SIM cards are used, then secure authentication is provided, but device bulk and complexity increase
Solution Approach 1:
The patent extracts the SIM card functionality from the physical card form factor and implements it as a virtual SIM profile stored in the device's memory. The authentication security functions are taken out from the physical SIM card and embedded into the device's operating system, eliminating the need for a separate physical card while maintaining security through cryptographic authentication mechanisms.
Solution Approach 2:
The patent creates a virtual copy of the SIM card functionality through software-based SIM profiles that replicate the authentication and identification functions of physical SIM cards. These virtual copies are stored in the device's memory and can be easily managed, downloaded, and switched without physical manipulation, thereby reducing device bulk while preserving authentication security.
2Reliability
If physical SIM cards are used, then carrier authentication is achieved, but user flexibility in switching carriers is reduced
Solution Approach 1:
The patent implements dynamic SIM profile management where users can easily switch between multiple virtual SIM profiles associated with different carriers. The system allows dynamic downloading, activation, and deactivation of SIM profiles through software operations, enabling flexible carrier switching without the constraints of physical card replacement. This dynamic approach maintains reliable carrier authentication while significantly improving user adaptability.
Solution Approach 2:
The patent creates a universal SIM management system that can handle multiple carrier profiles within a single device. The virtual SIM infrastructure provides multi-functionality by supporting authentication with multiple different carriers through software-based profiles, eliminating the need for separate physical SIM cards for each carrier and enabling seamless carrier switching.
3Adaptability or versatility
If multiple SIM profiles are supported, then carrier switching capability is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service SIM profile management where users can independently download, activate, and manage their own virtual SIM profiles through automated processes. The system provides user-friendly interfaces for selecting carriers, downloading associated SIM profiles, and switching between them without requiring complex manual configuration or technical expertise, thereby reducing management complexity while enhancing carrier switching capability.
Solution Approach 2:
The patent introduces an intermediary SIM profile management system that mediates between the user and multiple carrier networks. This intermediary layer handles the complexity of managing multiple SIM profiles by providing centralized control, automated authentication, and simplified user interfaces, thereby reducing the perceived complexity for users while maintaining robust multi-carrier switching capability.
4Reliability
If SIM cards are preloaded with account data, then authentication is enabled, but user ability to change accounts is limited
Solution Approach 1:
The patent transforms static preloaded SIM card data into dynamic virtual SIM profiles that can be easily updated and changed. Users can download new SIM profiles associated with different accounts and activate them through software operations, enabling seamless account changes without the need for physical card replacement. This dynamic approach maintains reliable authentication while dramatically improving the ease of account changes.
Solution Approach 2:
The patent creates virtual copies of SIM card data that can be easily replicated, downloaded, and switched. Instead of being constrained by the fixed data on physical SIM cards, users can obtain digital copies of SIM profiles from remote servers and load them into the device, enabling flexible account changes while maintaining authentication security through the virtualization of SIM functionality.
Data Source
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AI summary
Apparatus and methods for provisioning wireless devices for operation in one or more networks. In one embodiment, a provisioning service may provide access client (e.g., Subscriber Identity Module) data to a secure element in the wireless user device. The device may be preloaded with a provisioning SIM profile. The device may use the provisioning profile to roam onto a carrier, and communicate with a provisioning service, which may present the user with a list of available wireless carriers, such as carriers that service the user's current geographic location. In response to a user selection, the provisioning service may load a SIM profile associated with the selected carrier onto the secure element. The loaded SIM profile can be used to obtain wireless service from the selected carrier. The user may add multiple SIM profiles, and/or may delete SIM profiles.