Communication Profile Access Control for Multi-User Equipment

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Solution Overview

Problem

Existing wireless communication systems face challenges in flexibly providing personalized communication functions to user devices due to restrictions imposed by mobile network operators, making it difficult to manage communication profiles efficiently across different user equipment and users.

Innovation Solution

A method is provided to manage communication functions in user equipment, enabling and disabling communication profiles based on user inputs and server commands, allowing personalized communication functions for different users and devices, including eSIM profile management, authentication, and memory optimization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If communication profiles are made accessible to multiple users, then personalized communication functions are improved, but security and authorization control deteriorate

Engineering Contradiction:

Improvepersonalized communication functionsVSAvoidauthorization control

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The communication profile management is segmented into distinct components: profile storage, user authentication, and usage control. Each user has individual authentication credentials, and the system segments authorization decisions into separate verification steps, allowing multiple users to access personalized communication functions while maintaining strict security boundaries through discrete authentication and authorization checks

Inventive Principle:

Principle #1Segmentation

2Reliability

If communication profile access is restricted, then security is improved, but ease of operation deteriorates

Engineering Contradiction:

ImprovesecurityVSAvoidprofile access

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system implements self-service authentication where users independently verify their own credentials and manage their own access rights. The authentication mechanism allows users to self-verify their identity and authorization level without requiring manual intervention from administrators, thereby maintaining strong security controls while enabling convenient, rapid access to communication profiles

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If multiple communication profiles are stored, then adaptability is improved, but device complexity increases

Engineering Contradiction:

Improvecommunication profile managementVSAvoidprofile storage and management

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The communication profile storage system is designed with universal structure that can accommodate multiple profiles with different authorization levels and user types. The same storage mechanism and access control logic handle all profiles uniformly, whether for individual users, groups, or system accounts, thereby supporting high adaptability for different communication scenarios while maintaining consistent, manageable system complexity through standardized multi-functional design

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP4236399B1Method of managing a communication function in a user equipment

Publication Date: 2026.01.21 BAYERISCHE MOTOREN WERKE AG

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AI summary

The present disclosure relates to a method of managing a communication function in a user equipment. The user equipment has a communication profile associated with a first user. The method includes: receiving, at a mobile terminal, a first user input indicating that use of the communication profile should be prevented; sending, by the mobile terminal, a use prevention request to a first server based on the first user input; sending, by the first server, a use prevention command to the user equipment; and preventing, by the user equipment, use of the communication profile based on the use prevention command.