Adaptive 5G Backhaul Link Switching for mmWave Stability

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Solution Overview

Problem

The challenge in 5G communication systems is providing a stable backhaul link using mmWave communication due to its low permeability and susceptibility to environmental changes, leading to installation limitations and service instability.

Innovation Solution

An apparatus and method for adaptively configuring a backhaul link by a network providing device that supports mmWave communication, allowing the router to dynamically switch between LTE and NR backhaul links based on channel quality and packet flow requirements, ensuring continuous network service.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If mmWave communication is used for backhaul link, then higher data rates are achieved, but stability deteriorates due to low permeability and environmental susceptibility

Engineering Contradiction:
Improvedata rateVSAvoidbackhaul link stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system dynamically switches between mmWave and LTE backhaul links based on real-time channel conditions. The network providing device monitors channel quality and automatically transitions between communication technologies to maintain stable service, making the backhaul link adaptive rather than static.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the communication technology parameter from fixed mmWave to variable selection between mmWave and LTE. By adjusting the backhaul link technology parameter according to environmental conditions, the system achieves both high data rates when possible and stability when needed.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If mmWave backhaul link is deployed, then higher data rates are achieved, but installation flexibility deteriorates due to environmental constraints

Engineering Contradiction:
Improvedata rateVSAvoidinstallation flexibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The network providing device is designed to support multiple backhaul technologies (mmWave and LTE) universally. This multi-functionality allows the system to adapt to different installation environments and conditions, making the deployment more versatile and less constrained by environmental factors.

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

Solution Approach 2:

The system dynamically selects between mmWave and LTE backhaul links based on real-time channel conditions. The network providing device monitors channel quality and automatically transitions between communication technologies to maintain stable service, making the backhaul link adaptive rather than static.

Inventive Principle:
Principle #15Dynamics

3Reliability

If adaptive backhaul link configuration is implemented, then service stability is improved, but device complexity increases

Engineering Contradiction:
Improveservice stabilityVSAvoidconfiguration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The network providing device autonomously monitors channel conditions and performs automatic switching between mmWave and LTE backhaul links without requiring manual configuration or user intervention. The system serves itself by making intelligent decisions based on real-time environmental feedback.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements a feedback mechanism where the network providing device continuously monitors channel quality and uses this information to automatically adjust the backhaul link configuration. This closed-loop control maintains service stability while minimizing the need for complex manual configuration.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3681230B1Apparatus and method for configuring backhaul link in wireless communication system
Publication Date: 2025.12.10 SAMSUNG ELECTRONICS CO LTD
  • EP3681230B1 patent drawingFigure 1
  • EP3681230B1 patent drawingFigure 2A
  • EP3681230B1 patent drawingFigure 2B

AI summary

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A network providing device includes at least one transceiver, and at least one processor operatively coupled with the at least one transceiver. The at least one processor is configured to acquire a measurement result of a signal transmitted by a first cellular network, and transmit, to a router, a control message for setting a router to access a network identified on the basis of the measurement result. The network comprises at least one of the first cellular network and a second cellular network.