Mobile Terminal SIM Authentication via RPC Dynamic Library

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Solution Overview

Problem

Mobile terminals currently cannot use the eap-SIM (AKA) authentication method for accessing Wifi networks, leading to inefficiencies such as the need to re-enter username and password for Android devices, wasting system resources and complicating usage.

Innovation Solution

A mobile terminal with an operating system that loads a dynamic library using a remote processing calling (RPC) protocol to acquire authorization data from a SIM or USIM card, allowing successful authentication with a Wifi network via an eap-SIM (AKA) mechanism, eliminating the need for additional credentials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If credential exchange and password authentication methods are used for Wifi network access, then the mobile terminal can access the network, but the mobile terminal cannot be charged using eap-SIM authentication and requires re-allocation of username and password, wasting system resources and reducing convenience

Engineering Contradiction:
Improveconvenience of network access and chargingVSAvoidsystem resource waste
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The patent merges the network authentication function and the charging authentication function into a single eap-SIM authentication mechanism. By integrating the SIM card's authentication capability with the Wifi network access, the system enables both network access and charging authorization through the same authentication process, eliminating the need for separate credential management and reducing system resource waste.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The eap-SIM authentication mechanism is designed to serve multiple functions simultaneously: it provides both network access authentication and charging authorization. This multi-functional approach allows the mobile terminal to use the same SIM card-based credentials for both connecting to the Wifi network and enabling charging services, thereby improving operational convenience and eliminating the need for re-allocation of authentication credentials.

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

2Reliability

If eap-SIM authentication is implemented in Android mobile terminals, then charging can be bound to the SIM card, but additional username and password re-allocation is required, complicating the process

Engineering Contradiction:
Improvebinding of terminal to SIM card for chargingVSAvoidauthentication process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the authentication credentials directly from the SIM card using eap-SIM methodology, removing the need for separate username and password configurations. By extracting the authentication data from the already-present SIM card, the system maintains reliable binding between the terminal and SIM card for charging purposes while eliminating the additional complexity of manual credential re-allocation.

Inventive Principle:
Principle #2Taking out (Extraction)

3Productivity

If traditional authentication methods are used, then network access is achieved, but system resources are wasted due to re-allocation of credentials

Engineering Contradiction:
Improvenetwork access efficiencyVSAvoidsystem resource consumption
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent performs preliminary authentication by utilizing the SIM card credentials that are already present in the mobile terminal before network access is attempted. By pre-configuring the eap-SIM authentication mechanism with the SIM card's embedded credentials, the system avoids the need for subsequent credential re-allocation processes, thereby improving network access efficiency and reducing system resource consumption that would otherwise be wasted on repeated authentication setups.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2597900B1Mobile terminal and method for accessing a network
Publication Date: 2015.04.15 ZTE CORP
  • EP2597900B1 patent drawingFigure 1~2
  • EP2597900B1 patent drawingFigure 3

AI summary

The present invention provides a mobile terminal and a method for accessing a network by a mobile terminal, wherein this method comprises: loading a dynamic library of an interface using a remote processing calling (RPC) protocol in an operating system of a mobile terminal; invoking the dynamic library to acquire an authorization data based on a subscriber identification module of the mobile terminal; and sending the authorization data to an authentication server, and the mobile terminal accessing a Wifi network after the authentication to the authorization data by the authentication server is successful. The solution of the present invention can make a mobile terminal having an Android platform to support an eap-SIM (AKA) authentication function and make its use more convenient.