Mobile IP Address Management via Segmented Control Logic

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Solution Overview

Problem

Existing data unit transmission networks face challenges in managing mobile nodes with multiple care-of addresses, as they require advanced routing capabilities to handle mobility and varying network conditions, such as radio link utilization and congestion, which are not efficiently addressed by centralized control systems.

Innovation Solution

A data unit processing entity with a management part that provides independent access to decision data, allowing network control functions to override mobile node requests and manage forwarding addresses based on overall network conditions, enabling decentralized control and flexible handling of data units across multiple radio links.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If centralized control systems are used to manage mobile nodes with multiple care-of addresses, then routing capabilities are provided, but the system cannot efficiently handle mobility and varying network conditions such as radio link utilization and congestion

Engineering Contradiction:

Improvehandling mobility and network conditionsVSAvoidcontrol system structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control function is segmented between the data unit processing entity (local control) and the network control function (centralized control). The data unit processing entity handles local routing decisions independently, while the network control function provides overall coordination. This segmentation allows each component to operate autonomously within its scope, improving adaptability to local conditions while maintaining centralized oversight for network-wide optimization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The management part acts as an intermediary between the data unit processing entity and the network control function. It provides controlled access to decision data, enabling the network control function to influence routing decisions without directly controlling the data unit processing entity. This intermediary mechanism facilitates efficient information flow and coordinated control while maintaining system flexibility.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If mobile nodes autonomously select forwarding addresses, then routing flexibility is improved, but network control over resource allocation and handover procedures is reduced

Engineering Contradiction:

Improverouting flexibilityVSAvoidnetwork-controlled handover procedures

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system implements local quality by allowing the data unit processing entity to make routing decisions based on local conditions (radio link utilization, congestion) while the network control function provides overall guidance. The management part enables selective access to decision data, allowing local autonomy in routine routing while maintaining centralized control for critical handover procedures. This local quality approach balances routing flexibility with network-controlled reliability.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The control architecture is dynamic, with the management part providing controlled access to decision data that can be modified by either the mobile node or the network control function. The system can transition between autonomous mobile node control and network-controlled handover procedures based on the operational context, ensuring reliability during critical transitions while maintaining flexibility during stable operation.

Inventive Principle:

Principle #15Dynamics

3Device complexity

If a single control function manages decision data, then system simplicity is maintained, but multiple control functions cannot independently access or update decision data

Engineering Contradiction:

Improvecontrol function structureVSAvoidmulti-function access to decision data

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The management part provides universal access to decision data for multiple control functions. Both the data unit processing entity and the network control function can access and modify decision data through the management part. This universal interface enables multiple control functions to operate independently while coordinating through shared decision data, eliminating the need for separate control mechanisms for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8904035B2Address management in mobile IP environments

Publication Date: 2014.12.02 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

A data unit processing entity (4) is described, which has a decision part (41) for setting a forwarding address FA on the basis of an identifying address in a received data unit, by referring to decision data stored in a decision data memory (42). A management part (43) is provided, which is arranged to provide a network control function (51) with access to the decision data in the decision data memory (42), in order to change said decision data, independently of any access given to mobile nodes.