Mobile Host Traffic Routing in Heterogeneous Networks

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Solution Overview

Problem

Current network systems face challenges in efficiently integrating multiple access technologies and maintaining service levels due to complex and costly inter-system handovers, high operational costs, and centralized traffic control, which limits their scalability and robustness.

Innovation Solution

A dynamic heterogeneous network system that allows simultaneous communication over multiple access technologies, using existing mobility management and authentication functionalities, with a mobile host controlling traffic routing and quality of service, eliminating the need for expensive separate access networks and complex handover mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If inter-system handovers are used to integrate multiple access networks, then service continuity is maintained, but system complexity and operational costs increase significantly

Engineering Contradiction:

Improveservice continuityVSAvoidhandover mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the mobility management functionality from the network side and places it in the mobile host. The mobile host maintains multiple simultaneous connections to different access networks and independently manages traffic routing, eliminating the need for complex network-side handover mechanisms while maintaining service continuity.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of the network controlling handovers between access networks, the mobile host takes control and manages its own connections. This inversion of control resolves the technical contradiction by simplifying the network infrastructure while maintaining reliable service continuity through the mobile host's autonomous connection management.

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of operation

If centralized traffic control is implemented in the network, then service management is simplified, but response times increase and scalability is limited

Engineering Contradiction:

Improveservice management simplicityVSAvoidresponse time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent segments the traffic control functionality by creating independent mobile host units, each capable of autonomous traffic routing decisions. This segmentation distributes control from a centralized network entity to multiple autonomous nodes, reducing response times while maintaining service management through standardized protocols.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mobile host dynamically adjusts traffic routing based on real-time network conditions, service requirements, and connection quality. This dynamic control at the mobile host enables faster response times compared to centralized control, while service management is maintained through the mobile host's ability to adapt to changing conditions.

Inventive Principle:

Principle #15Dynamics

3Reliability

If separate access networks are deployed for different services, then service quality is optimized, but operational costs and system complexity increase

Engineering Contradiction:

Improveservice qualityVSAvoidoperational cost

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The mobile host is designed with multi-functionality, capable of simultaneously connecting to and managing multiple different access networks (wireless, wired, cellular, local area). This universal capability allows a single mobile host to access multiple service types without requiring separate dedicated network infrastructures, reducing operational costs while maintaining service quality.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges multiple access network connections at the mobile host level rather than requiring separate physical networks for each service. The mobile host combines multiple connections and manages them uniformly, achieving service quality optimization through intelligent routing while reducing the need for duplicate network infrastructure.

Inventive Principle:

Principle #5Merging (Combining)

4Ease of manufacture

If existing mobility management functionalities are reused, then deployment costs are reduced, but integration flexibility is limited

Engineering Contradiction:

Improvedeployment costVSAvoidintegration flexibility

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The mobile host implements partial mobility management functionality by reusing existing protocols for basic operations while adding selective enhancements for multi-network management. This approach reduces deployment costs by leveraging existing standards while maintaining sufficient integration flexibility for heterogeneous network environments.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS8165070B2Heterogeneous network system, network node and mobile host

Publication Date: 2012.04.24 SEESTA

AI summary

The invention relates to a system that dynamically integrates a set of communication networks to increase the overall heterogeneous network system performance and capabilities. In particular, the present invention relates to a technique of providing a Dynamic Heterogeneous Network System, and providing a Network Node entity and a Mobile Host entity into the system to support the heterogeneous network. The network system according to the present invention has an architecture that includes at least five building blocks including a mobile host (1), an access network (7), a network node (2), an AAA (Authentication, Authorization and Accounting) node (13), and an external network (3).