Virtual Subscriber Identity Module Data Distribution via Graphic Code

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Solution Overview

Problem

The distribution of virtual subscriber identity module (VSIM) data is limited as existing terminal devices require network access to acquire installation information, restricting its distribution and application.

Innovation Solution

A method where a terminal device acquires a graphic code containing temporary VSIM data and a service authentication code from a distribution client, registers with the mobile network, and connects to a management server to download formal VSIM data using the service authentication code, increasing security, flexibility, and convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the terminal device acquires VSIM data directly from the management server via network access, then the distribution efficiency is improved, but the terminal device cannot acquire VSIM data without network capabilities

Engineering Contradiction:
Improvedistribution efficiencyVSAvoiddistribution accessibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent introduces a distribution client as an intermediary between the management server and terminal device. The distribution client stores VSIM data locally and provides it to terminal devices without requiring network access. This mediator enables devices without network capabilities to acquire VSIM data while maintaining the management server's centralized control architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The VSIM data is pre-loaded into the distribution client before the terminal device needs it. The distribution client prepares and stores the authentication information and VSIM data in advance, so that when a terminal device requests VSIM data, it can be provided immediately without requiring the terminal device to access the network to retrieve it from the management server.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If the VSIM data is distributed without network access capability, then the distribution accessibility is improved, but the security of VSIM data transmission may be compromised

Engineering Contradiction:
Improvedistribution accessibilityVSAvoiddata transmission security
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The distribution client acts as a secure intermediary that receives VSIM data from the management server through encrypted network transmission and then provides it to terminal devices through local interfaces. This separates the security-critical network transmission from the local data distribution, maintaining security while enabling access without network capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The distribution client creates and stores copies of the VSIM data locally after receiving it from the management server. These local copies can be distributed to multiple terminal devices without requiring each device to access the network, thereby maintaining security during transmission while enabling widespread distribution.

Inventive Principle:
Principle #26Copying

3Reliability

If the terminal device connects to the management server to download formal VSIM data, then the data authenticity is improved, but the distribution flexibility is reduced

Engineering Contradiction:
Improvedata authenticityVSAvoiddistribution flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The distribution client pre-loads and caches the authentic VSIM data from the management server before distribution. This preliminary action allows terminal devices to receive authenticated data without needing to connect to the management server, thereby maintaining data authenticity while increasing distribution flexibility.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The distribution client serves as an intermediary that performs the authentication and data verification process centrally, then distributes the verified data locally. This separates the authentication function (maintaining authenticity) from the distribution function (enabling flexibility), allowing both requirements to be satisfied simultaneously.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3621332B1Method, terminal device, management server and system for distributing data of virtual subscriber identity module
Publication Date: 2023.11.01 HUAWEI TECH CO LTD
  • EP3621332B1 patent drawingFigure 1
  • EP3621332B1 patent drawingFigure 2
  • EP3621332B1 patent drawingFigure 3~4

AI summary

The present invention provides a method, an apparatus, and a system for distributing data of a virtual subscriber identity module, where the method includes: acquiring, by a terminal device, a graphic code from a distribution client, where the graphic code includes temporary data of a VSIM and a service authentication code, and the graphic code is provided by a management server to the distribution client; acquiring the temporary data of the VSIM and the service authentication code that are included in the graphic code; registering with a mobile network according to the temporary data of the VSIM, and connecting to the management server through the mobile network; sending, to the management server, a request for downloading formal data of the VSIM, where the request for downloading the formal data of the VSIM carries the service authentication code, so that the management server performs authentication on the terminal device according to the service authentication code; and if the authentication is passed, the management server acquires formal data that is of the VSIM and corresponding to the service authentication code, and sends the formal data of the VSIM; receiving the formal data of the VSIM that is sent by the management server; and registering with the mobile network according to the formal data of the VSIM.