SIM Profile Switching Logic for Multi-Carrier Inventory Reduction

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Solution Overview

Problem

Operators of wireless communication networks face high costs and potential user experience degradation due to the need to manage multiple SIM cards with different operator profiles, as current SIM cards can only contain one profile, requiring multiple SKUs and manual selection by customer service representatives.

Innovation Solution

SIM cards with multiple profiles and logic to automatically switch between them based on device activity, such as location status updates and status commands, allowing seamless connectivity across various wireless communication networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If operators carry multiple SIM cards with different operator profiles, then support for multiple carrier networks is improved, but inventory management complexity and costs increase

Engineering Contradiction:

Improvesupport for multiple carrier networksVSAvoidinventory management complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The SIM card is designed to contain multiple operator profiles (e.g., Profile 1 for Brand A, Profile 2 for Brand B) within a single physical card. The profile manager application automatically selects and switches between these profiles based on the detected carrier network, allowing one SIM card to serve multiple carrier networks without requiring operators to maintain multiple separate SIM card inventories.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If customer service representatives manually select SIM cards for different brands, then correct SIM card matching is improved, but potential mistakes and user experience degradation occur

Engineering Contradiction:

ImproveSIM card matching accuracyVSAvoiduser experience consistency

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The system implements automatic profile switching through the profile manager application, which detects the current carrier network and autonomously selects the appropriate operator profile from the SIM card without requiring manual intervention by customer service representatives. This eliminates human error in SIM card matching and ensures consistent, reliable connectivity for users.

Inventive Principle:

Principle #25Self-service

3Device complexity

If SIM cards contain only one operator profile, then SIM card simplicity is improved, but the need for multiple SKUs and manual management arises

Engineering Contradiction:

ImproveSIM card structure simplicityVSAvoidinventory management efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

Multiple operator profiles that were previously distributed across separate SIM cards (each with unique SKUs) are merged into a single SIM card. The profile manager application consolidates the functionality of multiple SIM cards by managing multiple profiles within one card, thereby reducing inventory complexity and improving operational efficiency while maintaining the simple physical structure of the SIM card.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11115812B2Smart profile change by subscriber identity module (SIM) application

Publication Date: 2021.09.07 T MOBILE US INC

AI summary

Systems and methods discussed herein are directed to subscriber identity (SIM) cards that include multiple profiles. The SIM cards include logic, e.g., an application or an applet, configured to change profiles so that the correct profile is selected for use with the electronic device that includes such a SIM card within the appropriate wireless communication network. The ability to change profiles may be based on activity of the electronic device, e.g., events, within the wireless communication network.