Wireless Relay Packet Aggregation for Large-Scale Network Load Relief

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Solution Overview

Problem

Large-scale industrial wireless networks face challenges in communication load and limited wireless band resources, making it difficult to build and maintain networks with a large number of connected devices due to increased packet transmission and reception demands.

Innovation Solution

A wireless relay device aggregates multiple data packets addressed to the same device, reducing the total data amount transmitted over the network, thereby alleviating communication load and resource scarcity by generating a single aggregated packet for transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the number of field devices is increased to build a large wireless network, then the network scale and coverage are improved, but the communication load of wireless relay devices increases

Engineering Contradiction:
Improvenumber of field devicesVSAvoidcommunication load
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent applies data aggregation by merging multiple data packets into a single aggregated packet at wireless relay devices. This combining of data from multiple field devices reduces the total number of packets transmitted through the network, thereby decreasing communication load on relay devices while maintaining the ability to support a large number of field devices.

Inventive Principle:
Principle #5Merging (Combining)

2Quantity of substance

If the number of field devices is increased to build a large wireless network, then the network scale and coverage are improved, but the wireless band resources become scarce

Engineering Contradiction:
Improvenumber of field devicesVSAvoidwireless band resources
Core Design Contradiction:
Quantity of substanceVSLoss of energy

Solution Approach 1:

The patent combines multiple data packets into aggregated packets, reducing the total data volume transmitted over wireless bands. This merging approach optimizes wireless band utilization by minimizing redundant transmissions and reducing the overall consumption of wireless communication resources.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If the number of wireless devices is increased to expand network capacity, then the network coverage is improved, but the device complexity and resource management become more difficult

Engineering Contradiction:
Improvenetwork capacityVSAvoidresource management
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements data aggregation that automatically combines packets from multiple sources, simplifying resource management by reducing the number of individual packet handling operations. This approach maintains high network capacity while reducing the complexity of packet routing, forwarding, and resource allocation management.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3133782B1Wireless relay device, processing apparatus, wireless communication system, and wireless communication method
Publication Date: 2022.08.03 YOKOGAWA ELECTRIC CORP
  • EP3133782B1 patent drawingFigure 1
  • EP3133782B1 patent drawingFigure 2~3
  • EP3133782B1 patent drawingFigure 4~5

AI summary

A wireless relay device for relaying packets via a wireless network includes an aggregator and a transfer controller. The aggregator is configured to aggregate a plurality of sets of data respectively included in a plurality of first packets transmitted from a plurality of wireless devices in the wireless network and under the wireless relay device to generate a second packet. The plurality of first packets is addressed to the wireless relay device. The transfer controller is configured to transfer the second packet to a transfer destination.