UE Beam Reporting for sTRP-mTRP Switching Efficiency

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Solution Overview

Problem

Existing communication systems face challenges in efficiently managing beam switching between single and multi-transmission reception points (sTRP and mTRP) due to increased signaling load and inefficiencies in beam management mechanisms.

Innovation Solution

A user equipment (UE) is configured to report beam management-related conditions to a network access node, allowing for event-based switching between sTRP and mTRP modes based on predefined conditions, reducing unnecessary signaling and optimizing communication modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If event-based reporting is implemented for beam management, then signaling overhead is reduced, but the complexity of detecting and evaluating beam conditions increases

Engineering Contradiction:

Improvesignaling overheadVSAvoidbeam condition detection

Core Design Contradiction:

Loss of energyVSDifficulty of detecting and measuring

Solution Approach 1:

The UE autonomously detects beam management conditions and triggers reports based on predefined criteria without continuous network instruction. The apparatus evaluates beam quality metrics (RSRP, SINR) itself and determines when reporting is necessary, reducing network signaling overhead while maintaining effective beam management

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Beam management conditions and reporting thresholds are preconfigured in the UE before operation. The apparatus prepares beam quality evaluation criteria and triggers in advance, allowing event-based reporting to function efficiently without real-time network intervention for each measurement

Inventive Principle:

Principle #10Preliminary action

2Reliability

If continuous beam management reporting is performed, then beam switching reliability is improved, but signaling load increases

Engineering Contradiction:

Improvebeam switching reliabilityVSAvoidsignaling load

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

Instead of continuous reporting, the apparatus implements periodic event-triggered reporting where the UE monitors beam conditions continuously but only reports when predefined events occur (e.g., beam quality falls below threshold). This maintains reliability by ensuring reports are sent when needed while reducing overall signaling load by avoiding redundant reports during stable conditions

Inventive Principle:

Principle #19Periodic action

3Productivity

If mTRP mode is used for communication, then throughput is improved, but device complexity increases

Engineering Contradiction:

ImprovethroughputVSAvoidcommunication mode complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The apparatus dynamically switches between sTRP and mTRP communication modes based on detected beam management conditions and UE preferences. The system adapts its transmission configuration in real-time, using mTRP with multiple transmission points when conditions favor higher throughput, and switching to sTRP when conditions deteriorate or UE preference indicates simpler mode is sufficient

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20260039365A1Method, apparatus and computer program

Publication Date: 2026.02.05 NOKIA TECHNOLOGIES OY

AI summary

There is provided an apparatus, method, and computer program for causing an apparatus to perform: reporting, to a network access node, a report indicating that the apparatus has detected that at least one beam management-related condition has been met for a multi-transmission reception point, mTRP, mode of communication, wherein the report comprises an indication that indicates whether a first transmission mode or a second transmission mode is preferred for said modes of communication.