Multi-TRP Beam Failure Recovery With Separate Beam Power Settings

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Solution Overview

Problem

Existing wireless communication systems face inefficiencies in beam failure recovery as the transmission power and new beam determined for one transmission and reception point (TRP) may not be optimal for another TRP, leading to suboptimal communication efficiency.

Innovation Solution

Wireless devices continue to use an activated beam for a second TRP after beam failure recovery, determining a transmission power that enhances communication efficiency between the wireless device and the base station.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If beam failure recovery is performed for a first TRP by determining transmission power and new beam, then communication reliability for the first TRP is improved, but communication efficiency for a second TRP deteriorates because the determined parameters are not optimal for the second TRP

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidcommunication efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent segments the beam failure recovery process by TRP, maintaining separate beam and power configurations for each TRP. When beam failure occurs at a first TRP, the recovery procedure operates independently for that TRP without affecting the activated beam configuration for a second TRP, thus preventing degradation of communication efficiency with the second TRP.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by allowing different beam and power parameters for different TRPs. The wireless device maintains an activated beam specifically for the second TRP that is optimized for that TRP's characteristics, while performing beam failure recovery for the first TRP using parameters appropriate only for the first TRP, ensuring each TRP receives locally optimized communication parameters.

Inventive Principle:

Principle #3Local quality

2Reliability

If transmission power and new beam are determined for first TRP after beam failure, then beam failure recovery is achieved, but the parameters are inefficient for second TRP leading to suboptimal communication

Engineering Contradiction:

Improvebeam failure recoveryVSAvoidtransmission power efficiency

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent segments the beam management functionality by maintaining separate beam configurations for different TRPs. The activated beam for the second TRP remains independent and is not modified during beam failure recovery procedures for the first TRP, ensuring transmission power efficiency is maintained for communications with the second TRP.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements local quality by allowing each TRP to have its own optimized beam and power parameters. The wireless device determines transmission power and new beams locally for each TRP based on that TRP's specific channel conditions, ensuring that power determination for the first TRP does not compromise the transmission power efficiency for the second TRP.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20250358823A1Transmission and Reception Point Configuration for Beam Failure Recovery

Publication Date: 2025.11.20 OFINNO LLC

AI summary

Wireless communications may comprise communications between a base station and a wireless device. A wireless device may perform beam failure recovery (BFR). Based on an indication of completion of the BFR, the wireless device may determine resources for transmission of uplink signals.