Master SIM Grouping for Multi-SIM Connection Management

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Solution Overview

Problem

The increasing number of SIM cards owned by individuals complicates management, leading to potential loss of devices due to complexity, as existing SIMs store network-specific information and require sophisticated solutions for efficient handling.

Innovation Solution

A method and system for grouping subscriber identity modules, allowing a master SIM to manage and establish connections with other SIMs based on defined characteristics such as communication type, device type, and access protocols, facilitating easier management and connection establishment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a user owns multiple SIM cards to access different networks and services, then the versatility and communication options are improved, but the complexity of managing multiple devices and subscriptions increases significantly

Engineering Contradiction:
Improvecommunication optionsVSAvoidmanagement complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple SIM card functionalities into a single device by implementing a system that can store and manage multiple subscriber identity modules (SIMs) within one terminal device. The device can switch between different SIMs and establish connections with multiple networks simultaneously, eliminating the need for users to physically handle and switch between multiple separate SIM cards and devices.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The terminal device is designed with universal functionality to support multiple SIM cards with different network affiliations and service types. The device can authenticate with multiple networks, store multiple subscription profiles, and provide unified access to various communication services through a single interface, making the device adaptable to diverse communication needs without requiring separate dedicated devices for each SIM.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple SIM cards are managed separately as individual devices, then each SIM can be independently controlled, but the time and effort required to manage all subscriptions increases

Engineering Contradiction:
Improveindependent controlVSAvoidmanagement time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent merges the management of multiple SIM cards into a single integrated system where all subscription profiles are stored and controlled within one terminal device. The system provides unified management capabilities including simultaneous monitoring of multiple networks, centralized configuration of service parameters, and coordinated switching between different SIMs, thereby reducing the time and effort required to manage multiple subscriptions while maintaining independent control over each SIM's functionality.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If traditional SIM management methods are used where each SIM requires separate device access, then security and authentication are maintained, but the ease of operation deteriorates due to complexity

Engineering Contradiction:
Improveauthentication securityVSAvoidoperational simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent combines multiple authentication mechanisms and SIM management functions into a single secure system. The terminal device implements a unified authentication framework that handles multiple SIM cards with different security protocols, allowing users to access and manage all subscriptions through one interface while maintaining the security requirements of each individual network. The system automatically manages authentication credentials and switching between SIMs without requiring users to physically insert or remove SIM cards.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11395131B2Connection establishment
Publication Date: 2022.07.19 TELIASONERA AB
  • US11395131B2 patent drawing
  • US11395131B2 patent drawing
  • US11395131B2 patent drawing

AI summary

Disclosed is a method for establishing a connection to a terminal device equipped with a subscriber identity module. The method includes: defining the plurality of subscriber identity modules as a group; defining, for at least one of the plurality of subscriber identity modules, at least one characteristic relating to accessing the at least one subscriber identity module; in response to a receipt of a connection request in a terminal device inquiring the at least one characteristic; and establishing, from the terminal device, a connection to the terminal device indicated in the connection request in accordance with the at least one characteristic relating to accessing the at least one subscriber identity module. Also disclosed is a terminal device, a system and a computer program product.