Uplink Resource Prioritization for Beam Failure Recovery Requests

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Solution Overview

Problem

In high-frequency band communications systems, beam failure recovery mechanisms face challenges in efficiently transmitting beam failure recovery request (BFRQ) information due to conflicts with other uplink information, leading to potential delays in signal recovery.

Innovation Solution

A method is introduced to determine and prioritize beam failure recovery request (BFRQ) information based on a first priority relationship, allowing it to be transmitted using a first uplink resource, even when resources are limited, by discarding or postponing lower-priority information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If beam failure recovery request (BFRQ) information is transmitted using existing uplink transmission mechanisms, then the recovery process can be initiated, but the transmission time is prolonged and recovery efficiency is reduced

Engineering Contradiction:

Improvebeam failure recovery efficiencyVSAvoidrecovery time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The terminal pre-configures multiple uplink resources (first uplink resource and second uplink resource) before beam failure occurs. When beam failure is detected, the terminal can immediately use the pre-configured first uplink resource to transmit BFRQ information without needing to perform resource selection or allocation procedures, thereby reducing recovery time and improving efficiency.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If multiple uplink information types are transmitted simultaneously in multi-carrier scenarios, then comprehensive communication is maintained, but resource conflicts arise and transmission reliability decreases

Engineering Contradiction:

Improvemulti-carrier transmission capabilityVSAvoidtransmission reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments uplink resources into different types (first uplink resource for BFRQ information, second uplink resource for other uplink information) with distinct priority levels. This segmentation allows the system to maintain multi-carrier transmission capabilities while preventing resource conflicts by ensuring that critical BFRQ information has dedicated resources that do not interfere with other uplink transmissions.

Inventive Principle:

Principle #1Segmentation

3Reliability

If beam failure detection and recovery procedures are implemented, then signal propagation interruption can be addressed, but the complexity of the transmission mechanism increases

Engineering Contradiction:

Improvesignal propagation continuityVSAvoidtransmission mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The terminal autonomously performs beam failure detection by monitoring the quality of downlink reference signals and independently determines when beam failure occurs. The terminal also self-selects appropriate uplink resources for BFRQ transmission based on pre-configured parameters, without requiring complex network coordination or additional signaling procedures, thereby maintaining reliability while minimizing system complexity.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12615524B2Transmission method, terminal, and network device

Publication Date: 2026.04.28 VIVO MOBILE COMM CO LTD

AI summary

Embodiments of this disclosure provide a transmission method, a terminal, and a network device. The method includes: determining, based on a first priority relationship, third uplink information from first uplink information and second uplink information, where the first uplink information is first beam failure recovery request BFRQ information; and transmitting the third uplink information by using a first uplink resource.