5G Terminal Beam Failure Recovery Event Detection

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Solution Overview

Problem

Conventional methods for processing beam failure in 5G communication systems are inefficient, leading to errors and poor performance due to the lack of consideration for factors beyond mere beam failure occurrence.

Innovation Solution

A method and terminal implementation that determine beam failure recovery events, including abnormalities in the recovery procedure or simultaneous failures in multiple cells, allowing for specific operations such as stopping or ignoring beam failure recovery processes, reporting to upper layers, or performing alternative recovery actions to improve processing efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If beam failure recovery is performed whenever a beam failure occurs, then beam failure detection capability is improved, but processing accuracy deteriorates due to erroneous recovery actions

Engineering Contradiction:

Improvebeam failure detection capabilityVSAvoidprocessing accuracy

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent changes the decision parameter from simple beam failure occurrence to a composite condition considering multiple factors: beam failure event, ongoing recovery procedures, and simultaneous failures in other cells. This parameter transformation enables accurate differentiation between genuine recovery needs and false alarm scenarios, resolving the contradiction between detection sensitivity and processing accuracy.

Inventive Principle:

Principle #35Parameter changes

2Speed

If conventional beam failure processing is implemented, then response speed is improved, but processing accuracy deteriorates due to lack of comprehensive factor consideration

Engineering Contradiction:

Improveresponse speedVSAvoidprocessing accuracy

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The patent performs preliminary assessment of multiple conditions (beam failure status, ongoing recovery procedures, other cell failures) before initiating beam failure recovery. This preliminary action prevents erroneous recovery operations while maintaining rapid response capability for genuine failures, thus resolving the contradiction between response speed and processing accuracy.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If beam failure recovery procedure is simplified, then ease of operation is improved, but reliability deteriorates due to error-prone processing

Engineering Contradiction:

Improveprocessing simplicityVSAvoidprocessing reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The terminal autonomously evaluates multiple conditions and makes intelligent decisions about whether to initiate beam failure recovery without complex external control. This self-service mechanism maintains operational simplicity while improving reliability through built-in error prevention logic that considers beam failure events, ongoing procedures, and multi-cell failure scenarios.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12081388B2Method for processing beam failure, and terminal

Publication Date: 2024.09.03 VIVO MOBILE COMM CO LTD

AI summary

A method for processing beam failure and a terminal are provided by the present disclosure. The method includes: determining a BFR event, wherein the beam failure recovery event includes an abnormality occurring in a BFR procedure or at least two cells both undergoing a BFR; executing a specific operation according to the BFR event.