Flexible Network Addressing for Mobility and Routing Scalability
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Solution Overview
Problem
Current network systems face challenges with IPv4 address scarcity, mobility support for smartphones, media-independent handover, low-power communication, semantic overload of IP addresses, routing scalability, and integration of Mobile Ad Hoc Networks (MANETs) with external networks, particularly in providing real-time traffic and managing location-based addresses.
Innovation Solution
A network system that generates and manages flexible addresses incorporating location information, separating the IP address layer into a node identifier layer and a flexible address layer, using flexible local and global addresses to provide location-based routing and efficient data packet transmission, while supporting mobility and low-power communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If current IP address system is used, then address allocation is simple, but IPv4 addresses are exhausted and IPv6 addresses cannot fully solve the semantic overload problem
Solution Approach 1:
The patent segments the IP address into two distinct parts: a node identifier (NID) that remains constant and a flexible address (FA) that changes with location. This segmentation allows the NID to serve as a stable identity while the FA adapts to different network locations, resolving the contradiction between address quantity and structural complexity by enabling location-based addressing without requiring completely new address space.
Solution Approach 2:
The patent introduces a new dimension to address structure by incorporating location information directly into the address system. The flexible address includes a locator that defines the node's location in the network, adding spatial dimensionality to the traditional IP address. This dimensional expansion allows the system to handle mobility and location-based services without exhausting address space.
2Adaptability or versatility
If fixed network design is used, then network structure is stable, but mobility support for smartphones is insufficient
Solution Approach 1:
The patent applies dynamics by making the address adaptable to changing network conditions. The flexible address changes when a node moves to a different network location, while the node identifier remains stable. This dynamic address mechanism allows the system to support mobile devices without compromising the stability of node identification, as the NID provides stable reference while the FA adapts to mobility.
3Productivity
If traditional routing tables are used, then routing is simple, but routing scalability deteriorates due to multi-homing and traffic engineering
Solution Approach 1:
The patent extracts location information from the traditional routing table mechanism and incorporates it directly into the address structure itself. The flexible address includes a locator that inherently provides location data, eliminating the need for separate routing table lookups and reducing the complexity of routing scalability issues. This extraction of location information resolves the contradiction by simplifying the routing mechanism while improving scalability.
4Adaptability or versatility
If MANET operates independently, then self-organization is achieved, but integration with external networks becomes difficult
Solution Approach 1:
The patent applies universality by designing the flexible address system to serve multiple functions simultaneously. The same address structure with locator and node identifier works both within MANETs for self-organization and for integration with external networks. The flexible address can be used for internal MANET communication while also providing a interface to external networks, eliminating the need for separate addressing mechanisms and reducing structural complexity while improving integration capability.
Data Source
AI summary
A network address generation device of a node is capable of generating a network address including a flexible address including a locator that defines location information of a point where the node is located, and a node identifier that includes identification information of the node.