Dual-Protocol Network Gateway for Mission-Critical Data Delivery

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Solution Overview

Problem

Current network devices lack efficient mechanisms to support time-critical and mission-critical networks, particularly in military applications requiring real-time, reliable, and guaranteed data delivery between ground and aerial devices, due to issues like unstable connectivity, limited bandwidth, and strict prioritization requirements.

Innovation Solution

A network gateway with a decision unit, processing unit, and traffic shaper that intercepts and processes frames to manage bandwidth, ensure quality of service, and maintain transparency, while being compliant with standard protocols and transparent to other network entities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If TCP protocol is used for reliable data delivery, then data delivery reliability is improved, but transmission delay increases and bandwidth efficiency deteriorates

Engineering Contradiction:
Improvedata delivery reliabilityVSAvoidtransmission delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent segments the network communication function into two independent protocols: TCP for control plane communication (ensuring reliability for setup/teardown) and UDP for data plane communication (enabling low-latency real-time data transfer). This segmentation allows each protocol to be optimized for its specific purpose without the overhead of the other.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism (the dual-protocol gateway) that mediates between reliable TCP connections and unreliable UDP streams. The gateway maintains TCP connections for control signaling while using UDP for actual data transfer, with the intermediary handling the coordination and state management between the two protocols.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Speed

If UDP protocol is used for timely data delivery, then transmission speed is improved, but data delivery reliability deteriorates

Engineering Contradiction:
Improvetransmission speedVSAvoiddata delivery reliability
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The patent segments the network communication function into two independent protocols: TCP for control plane communication (ensuring reliability for setup/teardown) and UDP for data plane communication (enabling low-latency real-time data transfer). This segmentation allows each protocol to be optimized for its specific purpose without the overhead of the other.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If standard network devices are used for military networks, then device simplicity is improved, but ability to support time-critical and mission-critical requirements deteriorates

Engineering Contradiction:
Improvedevice simplicityVSAvoidtime-critical and mission-critical support
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent creates a universal dual-protocol gateway that can handle both TCP and UDP traffic, serving multiple functions: TCP connection management, UDP data forwarding, bandwidth enforcement, and quality of service prioritization. This multi-functional device replaces multiple specialized devices while supporting both reliable and real-time requirements.

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

Solution Approach 2:

The patent introduces an intermediary mechanism (the dual-protocol gateway) that mediates between reliable TCP connections and unreliable UDP streams. The gateway maintains TCP connections for control signaling while using UDP for actual data transfer, with the intermediary handling the coordination and state management between the two protocols.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Reliability

If bandwidth management is implemented for quality of service, then service quality is improved, but device complexity increases

Engineering Contradiction:
Improvequality of serviceVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements preliminary action by pre-negotiating and configuring bandwidth parameters, quality of service levels, and prioritization rules during the TCP control plane setup phase. These parameters are established before actual UDP data transfer begins, allowing the gateway to enforce quality of service with simple rule-based forwarding during data transmission without complex real-time decisions.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS8705541B2Network gateway for time-critical and mission-critical networks
Publication Date: 2014.04.22 E S EMBEDDED SOLUTIONS 3000
  • US8705541B2 patent drawing
  • US8705541B2 patent drawing
  • US8705541B2 patent drawing

AI summary

A network gateway for time-critical and mission-critical networks is provided. The network gateway comprises a decision unit for determining, based on at least one network event; a processing unit for processing frames determined to be associated with the at least one service; a queue for buffering frames; and a traffic shaper for performing bandwidth management on frames stored in the queue.