Communication Protocol Selection via Network Topology Analysis

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Solution Overview

Problem

In communication systems where mobile computers need to connect to networks supporting both IPv4 and IPv6 protocols, determining the optimal protocol for communication leads to high workload and unnecessary data traffic due to the need to send data packets in both protocols, especially in scenarios where external networks can communicate using both protocols.

Innovation Solution

A communication system that determines the protocol for communication between a mobile computer and a target computer by analyzing statistical data about the network topology using a hop-by-hop message transmission mechanism, allowing the selection of the most efficient transmission route and alleviating the mobile computer's burden of determining the protocol, which can be done by either the mobile computer or the network connection computer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the mobile computer sends data packets in both IPv4 and IPv6 protocols to establish communication with a target computer, then communication compatibility is improved, but communication workload and data traffic increase

Engineering Contradiction:
Improvecommunication compatibilityVSAvoidcommunication workload
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent changes the parameter of protocol selection from a static dual-protocol approach to a dynamic selection based on network topology parameters. The mobile computer evaluates parameters such as the number of protocol conversions, number of sections (hops), round trip time, delay, and jitter to determine the optimal protocol, thereby reducing communication workload while maintaining compatibility.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements a feedback mechanism where the mobile computer receives topology information from intermediary computers along the transmission path and uses this feedback to determine the optimal protocol. The topology information includes parameters about the network path, and the mobile computer adjusts its protocol selection based on this feedback to minimize workload.

Inventive Principle:
Principle #23Feedback

2Productivity

If the mobile computer determines the optimal protocol by analyzing network topology, then communication efficiency is improved, but the mobile computer's knowledge of network topology increases

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidnetwork topology knowledge
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent introduces intermediary computers (network connection computers or target computers) as mediators that provide topology information to the mobile computer. Instead of the mobile computer directly complexly analyzing the entire network topology, the intermediaries simplify the process by providing pre-processed topology parameters, thereby reducing the mobile computer's complexity while maintaining efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Speed

If the mobile computer sends request messages to determine transmission routes, then route optimization is improved, but data traffic in the communication system increases

Engineering Contradiction:
Improvetransmission route optimizationVSAvoiddata traffic
Core Design Contradiction:
SpeedVSQuantity of substance

Solution Approach 1:

The patent applies partial action by having the mobile computer send request messages only in the necessary protocols (determined by topology evaluation) rather than in both protocols unconditionally. This reduces the excessive data traffic caused by sending duplicate request messages in both IPv4 and IPv6 when only one protocol is optimal, while still achieving route optimization.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP1992127B1Communication system, computer, and method for determining a communication protocol to be used in a communication system
Publication Date: 2017.09.13 SIEMENS AG
  • EP1992127B1 patent drawingFigure 1

AI summary

The invention relates to a communication system (100) comprising at least one first communication network (10- 1, 10-2) designed for communication according to a first protocol, at least one second communication network (20) designed for communication according to a second protocol, and at least one third communication network (30-1, 30-2) designed for communication according to the first and second protocols. The at least one first communication network (10-1, 10-2) and/or the at least one second communication network (20) and/or the at least one third communication network (30-1, 30-2) are coupled together for the exchange of messages. The inventive system also comprises a mobile computer (40) designed for communication according to the first and second protocols, and a target computer (42) which is designed for communication according to the first protocol and/or the second protocol, and is associated with the first, second or third communication network (10-1, 10-2, 30, 30- 25 1, 30-2). The inventive communication system is designed in such a way that when the mobile computer (40) is connected to a network connection computer (31) of the third communication network (30-1, 30-2), before the establishment of a communication connection to the target computer, the protocol to be used for communication with the network connection computer (31) is determined.