Mobile IP Mobility Management with Pre-generated Authentication Keys

Solution Overview

Problem

Conventional Mobile IP version 6 (MIPv6) in mobile communication systems, such as 3GPP2 UMB, experiences significant time delays in connection and call processing due to inefficient mobility management, which affects call setup and database management, and lacks effective authentication and security measures.

Innovation Solution

A method and system for managing mobility using MIPv6 that involves generating an authentication key for mutual authentication between a Mobile Station (MS) and a Home Agent (HA) through an Access Gateway (AG) and an Authentication, Authorization, and Accounting (AAA) server, utilizing Extensible Authentication Protocol (EAP) for secure access authentication, thereby optimizing call setup and mobility binding processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional MIPv6 is used for mobility management, then mobility support is provided, but significant time delays occur in connection and call processing

Engineering Contradiction:

Improvemobility supportVSAvoidcall processing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent performs authentication key generation and security association establishment before actual data transmission begins. The MS and HA complete mutual authentication and key exchange during the initial setup phase, so that when data needs to be transmitted, the security framework is already in place and no additional authentication delays occur.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent extracts the authentication and security management functions from the data transmission path. By separating the authentication phase (performed through AAA server and AG) from the data transmission phase, the system eliminates authentication-related delays from the critical data path, allowing faster call processing while maintaining security.

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If authentication and security measures are reinforced in conventional MIPv6, then safety is improved, but time delay increases

Engineering Contradiction:

Improveauthentication securityVSAvoidprocessing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent performs authentication key generation and security association establishment before actual data transmission begins. The MS and HA complete mutual authentication and key exchange during the initial setup phase, so that when data needs to be transmitted, the security framework is already in place and no additional authentication delays occur.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces the AG (Access Gateway) as an intermediary that facilitates efficient authentication between the MS and AAA server. The AG optimizes the authentication process by managing the interaction between MS and AAA, reducing the time required for security verification while maintaining robust authentication.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If conventional MIPv6 call processing procedures are followed, then mobility management is achieved, but connection setup time increases

Engineering Contradiction:

Improvemobility managementVSAvoidcall setup efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent performs authentication key generation and security association establishment before actual data transmission begins. The MS and HA complete mutual authentication and key exchange during the initial setup phase, so that when data needs to be transmitted, the security framework is already in place and no additional authentication delays occur.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent establishes continuous mobility binding between the MS and HA that remains active during movement. Once the binding is established through the binding update message, it persists through subsequent movements, eliminating the need for repeated authentication and registration procedures, thereby maintaining continuous productive operation.

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentUS9485652B2Method and system for managing mobility of mobile station in a mobile communication system using mobile IP

Publication Date: 2016.11.01 SAMSUNG ELECTRONICS CO LTD

AI summary

A method and system for managing mobility of an MS in a mobile communication system using Mobile IP are provided. It is determined whether to generate an authentication key for mutual authentication between the MS and an HA after access authentication with an AG. The authentication key is generated, if it is determined to generate the authentication key after the access authentication. An information request message is transmitted to the AG. A reply message including information allocated by an AAA server is received from the AG. A binding update message for registering mobility binding of the MS is transmitted to the HA.