N3 Interface Fluctuation Detection and Recovery in Open RAN

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Solution Overview

Problem

Existing telecommunications networks experience disruptions due to fluctuation or 'flapping' at network interfaces, leading to traffic disruptions and adverse user experiences, which current technologies fail to timely detect and mitigate.

Innovation Solution

A system and method using electronic processors to detect fluctuation conditions at network interfaces by analyzing ping failures and error indications, followed by executing recovery actions to mitigate these conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If network interfaces operate without monitoring, then device complexity is reduced, but reliability deteriorates due to undetected fluctuations causing traffic disruptions

Engineering Contradiction:

Improvenetwork interface stabilityVSAvoidmonitoring system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The network interface monitoring system enables the network elements to self-diagnose fluctuation conditions by automatically performing connectivity tests (ping and echo message exchanges) and self-correcting through automated recovery actions, eliminating the need for external manual monitoring infrastructure

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system implements continuous feedback loops where connectivity test results are monitored, fluctuation conditions are detected based on test failures, and recovery actions are automatically triggered. The system continuously verifies network interface stability through repeated ping and echo message tests, creating a closed-loop control mechanism that maintains reliability

Inventive Principle:

Principle #23Feedback

2Measurement precision

If connectivity tests are performed frequently, then detection precision improves, but loss of time increases due to multiple test failures before detection

Engineering Contradiction:

Improvefluctuation detection accuracyVSAvoiddetection delay

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary connectivity assessments using ping tests before initiating more comprehensive echo message exchanges. This staged approach allows early detection of potential issues with minimal time loss, while maintaining high detection precision through progressive testing depth

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The detection process is segmented into two distinct connectivity tests: (1) ping tests that measure basic IP reachability, and (2) echo message exchanges that verify application-layer connectivity. This segmentation allows the system to detect fluctuations at different levels of the protocol stack, improving overall detection precision while managing time investment efficiently

Inventive Principle:

Principle #1Segmentation

3Productivity

If automated recovery actions are executed, then productivity improves by reducing resolution time, but device complexity increases due to automated mitigation mechanisms

Engineering Contradiction:

Improvenetwork recovery speedVSAvoidrecovery system complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The network elements automatically execute recovery actions when fluctuation conditions are detected, enabling self-healing without external intervention. The system independently performs mitigation steps and verifies recovery, significantly improving productivity while keeping the automated mechanism relatively simple

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system converts the harmful effect of network fluctuations into beneficial learning opportunities by analyzing test failure patterns and adapting recovery strategies. Each fluctuation event provides data that improves future detection and recovery performance, transforming disruptions into system improvements

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Data Source

PatentUS20260081819A1Systems and methods to detect and mitigate fluctuation at n3 network interface within open radio access network telecommunications networks

Publication Date: 2026.03.19 BOOST SUBSCRIBERCO LLC

AI summary

Systems and methods to mitigate fluctuation within telecommunication networks. One system may include a processing system configured to determine whether transmission of a ping included in a series of pings failed, wherein the series of pings are transmitted between a first network element and a second network element connected via a network interface. The processing system may be configured to determine whether an attempt to exchange a plurality of echo messages between the first network element and the second network element via the network interface generated an error indication message. The processing system may be configured to, responsive to a determination that the ping failed and that the error indication message was generated, detect a fluctuation condition for the network interface. The processing system may be configured to execute a recovery action responsive to the fluctuation condition for the network interface.