SIM Profile Switching Dual ADFUSIM Entries
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Solution Overview
Problem
Existing SIM technologies require high memory consumption to host both public IMSI-type and private non-IMSI-type profiles for switching connectivity between different mobile radio networks.
Innovation Solution
A method in a SIM hosted in a mobile radio communication device that switches connectivity between a first and second mobile radio network by using a single profile with dual ADFUSIM entries, allowing for efficient switching of configuration without duplicating entire profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two full profiles (public IMSI-type and private non-IMSI-type) are hosted in parallel in the SIM, then connectivity switching between public and private networks is enabled, but memory consumption in the SIM increases significantly
Solution Approach 1:
The patent merges two separate profiles (public IMSI-type and private non-IMSI-type) into a single hybrid profile structure. The hybrid profile contains both an IMSI-type SUPI for public networks and a non-IMSI-type SUPI for private networks, allowing the SIM to host both connectivity types in one unified profile rather than requiring two separate full profiles, thereby reducing memory consumption while maintaining network switching capability
Solution Approach 2:
The hybrid profile is designed to serve multiple functions simultaneously - it can authenticate to both public IMSI-type networks and private non-IMSI-type networks using a single profile structure. This multi-functional profile eliminates the need for separate dedicated profiles for each network type, optimizing memory usage while preserving adaptability across different network environments
Data Source
AI summary
A method, in a SIM hosted in a mobile radio communication device, is for switching connectivity between a first mobile radio network and a second mobile radio network. The method includes a first ADFUSIM entry and a second ADFUSIM entry in the same profile; the switch of connectivity from the first to the second mobile radio network is performed by switching a configuration of the profile from using the first ADFUSIM entry and to using the second ADFUSIM entry.