Dynamic Packet Prioritization for Network Congestion Control

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Solution Overview

Problem

Existing communication systems face challenges in managing large amounts of data without causing transmission delays or packet non-transmission, especially for 'time-constrained' flows, and struggle to differentiate between encrypted or anonymized data packets.

Innovation Solution

A communication method that utilizes a prioritization module to dynamically reassess and reassign packets to different service classes based on operational weights and network metrics, ensuring efficient bandwidth allocation and minimizing congestion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If smoothing mechanisms are implemented to resolve congestion, then bandwidth management is improved, but transmission delays and packet loss increase

Engineering Contradiction:
Improvebandwidth managementVSAvoidtransmission delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies dynamics by making the classification field values dynamically adjustable based on network conditions. The system monitors network metrics and operational weights, then dynamically reassigns packets to different service classes by modifying classification field values, allowing the system to adapt to changing bandwidth availability and prevent congestion while maintaining time-sensitive transmissions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes parameters by modifying classification field values (such as DSCP markings) to reassign packets between service classes. When network conditions change or operational weights are updated, the system changes the classification parameters of packets dynamically, enabling flexible bandwidth allocation without rigid smoothing mechanisms that cause delays.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If smoothing mechanisms are applied to all data from the same service class, then congestion control is improved, but differentiation between packets from different applications is lost

Engineering Contradiction:
Improvecongestion controlVSAvoidpacket differentiation
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies local quality by enabling different classification treatments for different packets within the same service class. Instead of uniformly applying smoothing to all packets of a class, the system uses operational weights and network metrics to assign different prioritization levels to specific packets, allowing differentiated handling based on application-specific requirements while maintaining overall congestion control.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system dynamically adjusts packet classification within service classes by monitoring network conditions and operational weights. This dynamic reassignment allows the system to differentiate between packets from different applications even when they belong to the same service class, applying congestion control selectively rather than uniformly.

Inventive Principle:
Principle #15Dynamics

3Reliability

If firewall devices are used upstream, then security is improved, but identification of applications sending data becomes impossible

Engineering Contradiction:
ImprovesecurityVSAvoidapplication identification
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent applies preliminary action by establishing a prioritization context before data transmission that includes operational weights for different applications. This pre-configuration allows the system to identify and prioritize applications even when firewall devices obscure their identities during transmission, as the classification is determined beforehand based on the prioritization context rather than real-time inspection of encrypted or anonymized flows.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4564777A1Method for communication with classification and prioritization and related device
Publication Date: 2025.06.04 NAVAL GRP
  • EP4564777A1 patent drawingFigure 1
  • EP4564777A1 patent drawingFigure 2
  • EP4564777A1 patent drawingFigure 3

AI summary

The present invention relates to a communication method, comprising a transmission phase comprising the following steps: - providing packets to an exchange module, each packet comprising a classification field and being associated with a grouping, - providing a prioritization module (14) with a prioritization context and a network metric, the prioritization context associating an operational weight with each grouping, - determining by the prioritization module (14) a prioritized classification for each grouping as a function of the operational weight and the network metric, - for each grouping, for each packet associated with said grouping, assigning to the classification field a value corresponding to the prioritized classification of the grouping, and - transmitting the plurality of packets with the assigned classification field. The invention further relates to an associated device.