Profile Server for eSIM Device Class Optimization

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Solution Overview

Problem

Existing methods for providing communication profiles for electronic subscriber identification modules (eSIMs) in mobile communication devices are inefficient, as they rely on generic profiles that do not account for device-specific capabilities and requirements, leading to suboptimal communication performance.

Innovation Solution

A system where eSIMs are assigned device-specific communication profiles based on device classes, with a profile server and data server working together to determine the device class of a mobile communication device from its electronic identification (eID) and provide the corresponding communication profile, which includes specific capabilities such as data rates and error rates, through a wireless communication interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If generic communication profiles are used for all eSIMs, then the system is simple and easy to operate, but communication performance is suboptimal and does not account for device-specific capabilities

Engineering Contradiction:
Improvecommunication performanceVSAvoidprofile management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies local quality by providing customized communication profiles tailored to specific device classes rather than using a single generic profile for all devices. Each device class receives profiles optimized for its specific capabilities and requirements, thereby improving communication performance without requiring complex manual configuration by users.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system implements self-service through automated device class determination and profile assignment. The profile server automatically determines the device class based on the electronic identification and assigns the appropriate communication profile without user intervention, maintaining operational simplicity while enabling optimized profiles.

Inventive Principle:
Principle #25Self-service

2Productivity

If device-specific communication profiles are implemented, then communication performance is optimized for specific device capabilities, but the profile server complexity increases

Engineering Contradiction:
Improvedata rateVSAvoidprofile server complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by determining device class based on electronic identification parameters and using these parameters to select appropriate communication profiles. The system changes profile parameters (data rates, error rates, connection frequencies) according to the determined device class, thereby optimizing productivity while managing server complexity through systematic parameter-based selection.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces an intermediary mechanism by using the electronic identification as a key to determine device class and subsequently select the appropriate profile. This intermediary approach (eID → device class → profile) simplifies the overall system architecture by creating a clear decision pathway that manages profile server complexity while enabling device-specific optimization.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If device class determination is performed by querying a data server, then accurate device-specific profiles can be assigned, but communication delay increases

Engineering Contradiction:
Improvedevice class identification accuracyVSAvoidprofile assignment delay
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-organizing communication profiles according to device classes in the profile server's memory. When a device connects, the system quickly determines the device class and immediately retrieves the pre-prepared profile, avoiding time-consuming real-time analysis or complex queries. This preliminary organization reduces profile assignment delay while maintaining accurate device class identification.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3491858B1Profile server for providing electronic communication profiles of electronic subscriber identity modules of mobile communication devices
Publication Date: 2021.10.27 DEUTSCHE TELEKOM AG
  • EP3491858B1 patent drawingFigure 1
  • EP3491858B1 patent drawingFigure 2

AI summary

The invention relates to a profile server (100) for providing electronic communication profiles of electronic client identity modules of mobile communication devices, wherein an electronic identification (eID) is associated with each electronic user identity module, wherein the mobile communication devices are associated with different device classes, having a communication interface (101) which is designed to receive an electronic identification of an electronic user identity module of a mobile communication device, a memory (103), which is designed to save device-specific electronic communication profiles for different device classes of mobile communication devices, a processor (105), which is designed to determine a device class of the mobile communication device on the basis of the received electronic identification, wherein the processor is designed to output a device-specific electronic communication profile from the memory, which is associated with the specific device class of the mobile communication device, wherein the communication interface (101) is designed to transmit the output electronic communication profile to the mobile communication device.