Network Parameter Negotiation for Data Flow Reliability

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Solution Overview

Problem

The existing methods for managing data messages between distinct communication networks are unreliable, as management parameters set by one network may be erroneous or malicious, leading to congestion and degradation of service quality, especially when data flows from an unmanaged local area network to a managed Wide Area Network.

Innovation Solution

A method that uses a single management parameter applied to all data packets of a data flow, determined by the reliable management parameter from the Wide Area Network, ensuring consistent processing without modifying border equipment or interrupting service, and utilizing the ECN parameter to differentiate streams within secure tunnels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If management parameters are set by local network terminals, then local network control flexibility is improved, but parameter reliability deteriorates leading to congestion and service degradation

Engineering Contradiction:
Improvelocal network control flexibilityVSAvoidparameter reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces an intermediary mechanism where management parameters are set through negotiation between terminal equipment and network equipment, rather than unilaterally by terminals. This mediator role ensures parameter reliability while preserving local control flexibility, resolving the contradiction between adaptability and reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent implements feedback mechanisms where network equipment provides responses to terminal equipment regarding management parameters. This feedback loop allows terminals to set parameters flexibly while receiving validation and adjustment guidance from the network, ensuring both local control and parameter reliability.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If IP address is used to determine class of service, then access to service information is improved, but information loss occurs when IP address changes

Engineering Contradiction:
Improveaccess to service informationVSAvoidclass of service information loss
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent transitions from static IP address-based service determination to dynamic negotiation-based parameter setting. The management parameters are established through real-time interaction between terminal and network equipment, allowing service information to be updated and maintained regardless of IP address changes.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent performs preliminary negotiation and establishment of management parameters before data transmission begins. This preliminary action ensures that service information is properly configured and stored in advance, preventing information loss when network conditions or IP addresses change during transmission.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If management parameters are negotiated between terminal and network equipment, then parameter reliability is improved, but communication complexity increases

Engineering Contradiction:
Improveparameter reliabilityVSAvoidcommunication complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs universal negotiation protocols and standardized message formats that can be applied across different terminal and network equipment types. This multi-functionality approach allows reliable parameter negotiation without requiring complex equipment-specific implementations, reducing overall communication complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent uses parameter changes within standardized protocol frameworks to achieve reliable negotiation. By modifying specific negotiation parameters and message structures rather than redesigning entire communication systems, the patent improves reliability while minimizing the increase in communication complexity.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP2359546B1Method for configuring parameters for managing data packets pertaining to a data flow
Publication Date: 2018.03.07 ORANGE SA
  • EP2359546B1 patent drawingFigure 1~6
  • EP2359546B1 patent drawingFigure 4~5
  • EP2359546B1 patent drawingFigure 7

AI summary

A method and apparatus are provided for configuring management parameter values of data messages of a data stream. The method includes a first step of sending from a first communications network to a second communications network a first message of the data stream including a first data message management parameter value and a second step of sending from the second network to the first network a second message of the data stream including a second data message management parameter value. The method further includes a step of selecting from the first and second management parameter values a management parameter value to be applied to all the data messages of the data stream.