Direct Route Establishment Between Mobile Nodes

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Solution Overview

Problem

In cellular communications, the routing of data between mobile nodes involves multiple forwarding agents, leading to inefficient packet routing and increased end-to-end delays due to unnecessary network resource usage.

Innovation Solution

Establishing a direct route between sender and receiver nodes by detecting the Internet Protocol address of the forwarding agent linked to the receiver node, using a discovery packet with a route tracking option, and confirming communication capability before setting up the direct route, thereby bypassing home agents and optimizing the communication path.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If data is routed through multiple forwarding agents and home agents, then mobile nodes can communicate across different networks, but network resource usage increases and end-to-end delays increase

Engineering Contradiction:

Improvecommunication connectivityVSAvoidnetwork resource usage

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts and removes intermediate forwarding agents and home agents from the communication path between mobile nodes. By establishing a direct peer-to-peer route, the unnecessary intermediate nodes are taken out of the data transmission path, reducing network resource consumption while maintaining connectivity through the route discovery mechanism

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of the traditional approach where data must pass through home agents and forwarding agents, the patent inverts the routing model by allowing mobile nodes to discover and establish direct routes to each other. This inversion eliminates the mandatory involvement of intermediate agents, reducing network overhead

Inventive Principle:

Principle #13The other way round (Inversion)

2Reliability

If data is routed through multiple forwarding agents and home agents, then mobile nodes can communicate across different networks, but end-to-end delays increase

Engineering Contradiction:

Improvecommunication connectivityVSAvoidend-to-end delays

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent removes intermediate forwarding agents and home agents from the communication path, extracting them as optional components rather than mandatory intermediaries. This extraction of unnecessary nodes directly reduces the number of hops and associated processing delays in the data transmission path

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent enables data to skip through the traditional multi-agent routing path by establishing direct routes between mobile nodes. The route discovery mechanism allows nodes to bypass intermediate agents and rush data directly to the destination, significantly reducing end-to-end transmission time

Inventive Principle:

Principle #21Skipping (Rushing through)

3Loss of energy

If direct routes are established between mobile nodes, then network resource usage is reduced, but route discovery complexity increases

Engineering Contradiction:

Improvenetwork resource usageVSAvoidroute discovery mechanism

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The patent creates a universal route discovery mechanism that can operate in multiple scenarios: direct routing when possible, and traditional agent-based routing when direct routes are unavailable. This multi-functional approach handles both optimized direct paths and fallback conventional paths through the same infrastructure

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces a route discovery packet as an intermediary mechanism that facilitates direct route establishment without requiring permanent changes to the network architecture. This mediator enables temporary direct connections while maintaining compatibility with existing agent-based routing infrastructure

Inventive Principle:

Principle #24Intermediary (Mediator)

4Adaptability or versatility

If traditional routing through home agents is used, then system compatibility is maintained, but communication efficiency decreases

Engineering Contradiction:

Improvesystem compatibilityVSAvoidcommunication efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent implements a dynamic routing system where the communication path can adapt between direct routes and traditional agent-based routes based on current network conditions and node availability. This dynamic approach optimizes communication efficiency by selecting the most efficient path while maintaining compatibility with existing systems

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies partial action by implementing direct routing only for mobile-to-mobile communications where it is beneficial, while leaving other communication types to use traditional routing. This selective application of direct routing improves efficiency for specific scenarios without requiring complete system overhaul

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS8144687B2Method, apparatus and system for establishing a direct route between agents of a sender node and a receiver node

Publication Date: 2012.03.27 GOOGLE TECHNOLOGY HOLDINGS LLC

AI summary

In the present technique of a communication system (100), an address of a forwarding agent (114) linked to a receiver node (112) is detected to provide a discovered address. The discovered address is then used to establish a direct route with the forwarding agent of the receiver node for subsequent communications between a sender node (104) and the receiver node.