eUICC Module Maintaining Multiple Active Communication Profiles

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Solution Overview

Problem

Conventional embedded subscriber identity modules (eUICC) can only have one communication profile active at a time, leading to the need for frequent activation and deactivation requests over the cellular network, which generates unnecessary data traffic and resource usage.

Innovation Solution

The eUICC module is configured to maintain multiple communication profiles in an active state simultaneously, allowing it to activate or deactivate profiles while keeping others active, reducing the need for frequent network requests and minimizing network traffic and resource usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If only one communication profile is active at a time in the eUICC module, then the system operates according to conventional SIM card behavior, but frequent activation and deactivation requests must be sent over the cellular network, generating unnecessary data traffic and resource usage

Engineering Contradiction:

Improvenetwork resource consumptionVSAvoidprofile management flexibility

Core Design Contradiction:

Loss of energyVSAdaptability or versatility

Solution Approach 1:

The eUICC module pre-activates multiple communication profiles in advance, so that when a profile needs to be used, it is already in an active state and ready for immediate use. This eliminates the need for frequent activation requests during operation, reducing network traffic while maintaining the ability to switch between different operators and services.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If multiple communication profiles are maintained active simultaneously in the eUICC module, then network traffic and resource usage are reduced, but the device complexity increases

Engineering Contradiction:

Improvenetwork efficiencyVSAvoideUICC module complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The eUICC module autonomously manages the activation state of multiple communication profiles without requiring external control from the network or user intervention. It automatically determines which profiles to activate and maintains them in an active state, reducing network traffic while the terminal device simply uses the available profiles without needing to manage their activation states.

Inventive Principle:

Principle #25Self-service

3Reliability

If frequent activation and deactivation requests are sent over the cellular network, then profile state management is maintained, but data traffic and network resource usage increase

Engineering Contradiction:

Improveprofile state managementVSAvoiddata traffic

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent extracts the profile activation and deactivation logic from the network side and relocates it to the eUICC module itself. The module independently manages which profiles are active, eliminating the need for continuous network communication for state management while ensuring reliable profile handling through local autonomous control.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS10893407B2Method for controlling an embedded subscriber identity module

Publication Date: 2021.01.12 IDEMIA FRANCE SAS

AI summary

An embedded subscriber identity module (eUICC1) and a method of controlling such a module. The embedded subscriber identity module (eUICC1) is suitable for maintaining numerous communication profiles (P) simultaneously in the active state, and each active communication profile (P) allows the communications terminal (T) containing the embedded subscriber identity module to communicate with a mobile telephone network (R) associated with that communication profile.