eSIM Authentication for Dynamic Network Selection
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Solution Overview
Problem
Existing mobile device authentication systems, particularly those using SIM cards, face challenges such as space constraints and reduced flexibility due to specialized hardware requirements, and are often bound to specific carriers, limiting user and network operator flexibility.
Innovation Solution
A software-based SIM implementation that allows mobile devices to identify and selectively connect to multiple mobile network operators (MNOs) based on policies, using e-SIM information to authenticate and switch between networks dynamically, thereby improving user experience and network efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specialized hardware (SIM card interface) is included in mobile devices, then authentication functionality is provided, but device space is consumed and user flexibility is reduced
Solution Approach 1:
The patent replaces the mechanical SIM card interface with a software-based authentication system. The eSIM application stores authentication credentials and network information in device memory rather than requiring a physical SIM card slot and associated hardware interface, thereby eliminating the need for specialized mechanical components while maintaining authentication functionality.
Solution Approach 2:
The patent creates a software copy of the SIM card functionality through an eSIM application that replicates the authentication and network selection capabilities of a physical SIM card. This software implementation provides the same functional value without requiring physical hardware, thus saving device space.
2Ease of operation
If SIM cards are bound to a particular carrier, then authentication is simplified, but user and network operator flexibility is reduced
Solution Approach 1:
The patent implements dynamic carrier selection capability where the eSIM application can store multiple network operator information and switch between different carriers based on user preferences, location, or network conditions. This dynamic approach maintains authentication simplicity while providing adaptability to different carriers, resolving the contradiction between ease of operation and versatility.
Solution Approach 2:
The eSIM application is designed to be universal by supporting multiple network operators and authentication methods within a single software implementation. Rather than being bound to a single carrier like traditional SIM cards, the system can authenticate with multiple carriers, thereby providing both simplicity and flexibility simultaneously.
3Reliability
If physical SIM cards are used, then network authentication is established, but network switching requires physical card changes
Solution Approach 1:
The patent replaces the mechanical SIM card ejection and insertion process with software-based network switching. The eSIM application can programmatically switch between stored network operator information without requiring any physical manipulation, thereby maintaining reliable authentication while dramatically improving switching convenience.
Solution Approach 2:
The system performs preliminary actions by pre-storing multiple network operator information and authentication credentials within the eSIM application. This allows the device to switch networks instantly by selecting from pre-configured options without requiring physical SIM card changes or time-consuming re-authentication processes.
4Adaptability or versatility
If software-based SIM implementation is used, then device space is saved and flexibility is improved, but authentication security requirements increase
Solution Approach 1:
The patent introduces a trusted execution environment or secure element as an intermediary layer between the eSIM application and the device's main processor. This secure intermediary stores and manages authentication credentials, providing enhanced security for the software-based SIM implementation while maintaining the flexibility and space-saving benefits of the software approach.
Data Source
AI summary
This disclosure relates to systems and methods for managing mobile device network access. Systems and methods are described that allow for a mobile device to identify and selectively authenticate with one of a plurality of mobile network operators based on one or more policies associated with the mobile device and/or its user. Based on one or more policies, the mobile device may determine that a particular network is a preferred network and used provisioned electronic subscriber information stored on the device associated with the preferred network to connect to the preferred network. In various embodiments, other available networks may be checked, and the mobile device may switch networks in the event a new preferred network is identified.