Beam Failure Recovery Requests With Preconfigured Candidate Beams

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Solution Overview

Problem

Existing wireless communication systems face difficulties in determining a new beam in a timely and efficient manner upon detecting beam failure.

Innovation Solution

A base station transmits configuration parameters to a wireless device, which includes an indication of the type of beam failure recovery, enabling the device to detect beam failure and transmit a recovery request with or without indicating candidate beams.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a beam failure is detected in existing wireless communication systems, then beam failure recovery is needed, but determining a new beam in a timely and efficient manner becomes difficult

Engineering Contradiction:

Improvebeam failure recoveryVSAvoidtime to determine new beam

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The base station pre-configures multiple candidate beams and their corresponding recovery request resources before beam failure occurs. When beam failure is detected, the wireless device can immediately use the pre-configured candidate beams without needing to perform complex beam selection procedures, thus reducing the time to determine a new beam while maintaining recovery reliability

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically selects different beam failure recovery request types based on the detected beam failure condition. The wireless device can transmit recovery requests with or without candidate beam indications depending on the specific failure scenario, allowing flexible adaptation to different recovery needs and optimizing both reliability and timing

Inventive Principle:

Principle #15Dynamics

2Productivity

If configuration parameters are transmitted to enable beam failure recovery, then recovery efficiency is improved, but device complexity increases

Engineering Contradiction:

Improvebeam failure recovery efficiencyVSAvoidconfiguration management

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The beam failure recovery configuration is segmented into multiple independent parameters including candidate beams, recovery request resources, and request types. This segmentation allows the wireless device to process and manage each parameter independently, reducing overall configuration complexity while maintaining high recovery efficiency through systematic parameter utilization

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250350423A1Beam Failure Recovery Request Transmission

Publication Date: 2025.11.13 BLOOMSBURY DESIGN LABS LLC

AI summary

Systems, apparatuses, and methods are described for wireless communications. A base station may transmit an indication of a type of a beam failure recovery request. A wireless device may detect a beam failure and transmit a beam failure recovery requested based on the type.