Beam Failure Recovery Time Window for Radio Link Reliability

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Solution Overview

Problem

Existing technologies face challenges in efficiently managing beam failure recovery in multicarrier communication systems, particularly in ensuring seamless communication and minimizing downtime during beam failures.

Innovation Solution

The implementation of a beam failure recovery procedure that utilizes advanced radio access network (RAN) architecture and protocol stacks, including next-generation Node B (gNB) and evolved Node B (eNB) functionalities, to detect and recover from beam failures through dynamic resource allocation and scheduling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If beam failure recovery procedure is implemented with dynamic resource allocation, then communication reliability is improved, but system complexity increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-configuring recovery resources and procedures before beam failure occurs. The system prepares recovery indicators and resource allocations in advance, enabling rapid response when beam failure is detected without requiring complex real-time decision-making during the failure event itself.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements dynamics through adaptive resource allocation that adjusts to actual beam failure conditions. The system dynamically selects recovery resources based on current network state and failure characteristics, allowing the complex system to manage complexity through adaptability rather than rigid pre-planning.

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If beam failure detection and recovery procedures are implemented, then communication continuity is improved, but processing time increases

Engineering Contradiction:
Improvecommunication continuityVSAvoidprocessing time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The system performs preliminary actions by pre-establishing recovery indicators and resource mappings before beam failure occurs. When failure is detected, the recovery process can proceed much faster since the necessary resources and procedures are already identified and prepared, significantly reducing the processing time needed for recovery compared to real-time decision-making.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent applies the skipping principle by enabling the system to rapidly transition through the recovery process using pre-identified resources. Once beam failure is detected and the appropriate recovery indicator is identified, the system can quickly allocate resources without going through comprehensive resource evaluation procedures, thus rushing through the recovery process while maintaining continuity.

Inventive Principle:
Principle #21Skipping (Rushing through)

Data Source

PatentUS20250119934A1Time window for controlling a radio link failure indication based on a beam failure recovery procedure
Publication Date: 2025.04.10 RESMED INC
  • US20250119934A1 patent drawing
  • US20250119934A1 patent drawing
  • US20250119934A1 patent drawing

AI summary

A wireless device receives one or more configuration parameters indicating a time window for controlling a radio link failure indication based on a beam failure recovery procedure. A first failure of the beam failure recovery procedure is determined during the time window. The first failure is ignored by not causing a radio link failure in response to the first failure being during the time window. A second failure of the beam failure recovery procedure after the time window is determined. A radio link failure in response to the second failure is indicated.