Multi-Path Communication Protocol for Bandwidth Aggregation

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Solution Overview

Problem

Current multiple radio access technologies (M-RAT) enabled devices are limited in utilizing available bandwidth to meet Quality of Service (QoS) requirements for data services, as they often rely on single radio access technologies that cannot satisfy bandwidth demands for certain applications.

Innovation Solution

The implementation of a network protocol mechanism that splits traffic flows across multiple radio access technologies using Generic Routing Encapsulation (GRE) tunnels, allowing for simultaneous data communication paths over different RATs to aggregate bandwidth and meet QoS requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single radio access technology is used for data transmission, then device complexity is reduced, but bandwidth sufficiency deteriorates

Engineering Contradiction:
Improvecomplexity of radio access configurationVSAvoidavailable bandwidth
Core Design Contradiction:
Device complexityVSQuantity of substance

Solution Approach 1:

The patent segments traffic flows into different data streams that can be transmitted over multiple radio access technologies simultaneously. Each data stream is routed through separate communication paths (e.g., Wi-Fi, cellular networks), allowing the system to aggregate bandwidth from multiple sources while maintaining manageable complexity through structured traffic segmentation and path selection mechanisms.

Inventive Principle:
Principle #1Segmentation

2Quantity of substance

If multiple radio access technologies are utilized simultaneously, then bandwidth sufficiency is improved, but device complexity increases

Engineering Contradiction:
Improveavailable bandwidthVSAvoidcomplexity of multi-path management
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent introduces intermediary components including a multi-path manager module and communication path selection mechanisms that automatically handle the complexity of managing multiple radio access technologies. These intermediaries monitor network conditions, select optimal paths for different data streams, and manage resource allocation, thereby enabling bandwidth aggregation while shielding the user from the underlying complexity through automated path management and selection algorithms.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If existing multi-path solutions with fixed configuration are used, then implementation simplicity is maintained, but application versatility deteriorates

Engineering Contradiction:
Improveease of implementationVSAvoidsupport for different applications
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic configuration capabilities that allow the multi-path communication system to adapt to different applications and network conditions in real-time. The system can dynamically adjust traffic routing, select appropriate radio access technologies based on application requirements, and modify communication paths as network conditions change, thereby achieving both ease of implementation through standardized protocols and high versatility through adaptive behavior that supports various applications including voice, data, and messaging services.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3491881B1Devices for multi-path communication over multiple radio access technologies
Publication Date: 2023.03.01 NOKIA OF AMERICA CORP
  • EP3491881B1 patent drawingFigure 1
  • EP3491881B1 patent drawingFigure 2A
  • EP3491881B1 patent drawingFigure 2B

AI summary

A device (102,104,106,108) includes a memory having computer-readable instruction stored therein and a processor. The processor is configured to execute the computer-readable instructions to identity (S311) a plurality of communication paths for data transmission between the device and a network gateway, a first one of the plurality of communication paths being associated with a first radio access technology and a second one of the plurality of communication paths being associated with a second radio access technology, and establish (S316) a data transmission session between the device and the network gateway simultaneously over at least the first one and the second one of the plurality of communication paths.