UE Beam Measurement Reporting for Early Sync and Cell Switch

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Solution Overview

Problem

Existing event triggered measurement reporting procedures in 5G NR do not effectively manage early synchronization decisions and radio resource utilization during Layer-1-Layer-2-triggered mobility (LTM), limiting efficient handover performance.

Innovation Solution

Implement improved event triggered measurement reporting procedures that include separate sets of parameters for early synchronization and cell switch operations, allowing the UE to perform measurement reporting based on specific event conditions for both early synchronization and cell switch decisions, optimizing resource utilization and reducing latency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single set of measurement reporting parameters is used for both early synchronization and cell switch operations, then the device complexity is reduced, but the handover performance and resource utilization efficiency deteriorate

Engineering Contradiction:

Improvemeasurement reporting parametersVSAvoidhandover performance

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent divides the single set of measurement reporting parameters into two separate sets: a first set for early synchronization operations and a second set for cell switch operations. This segmentation allows each parameter set to be optimized for its specific function, improving handover performance while maintaining manageable device complexity through structured organization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies different measurement reporting parameters locally to different operational contexts - using the first set specifically for early synchronization and the second set for cell switch decisions. This local quality approach ensures that each operation uses parameters tailored to its specific requirements, enhancing overall system reliability.

Inventive Principle:

Principle #3Local quality

2Measurement precision

If event triggered measurement reporting is performed for all beams regardless of condition, then the measurement precision is maintained, but the resource usage increases

Engineering Contradiction:

Improvebeam measurement accuracyVSAvoidresource usage

Core Design Contradiction:

Measurement precisionVSLoss of energy

Solution Approach 1:

The patent changes the parameters used for measurement reporting based on the beam's fulfillment of specific conditions. When a beam fulfills the first condition but not the second, the first set of parameters is applied; when it fulfills the second condition, the second set is applied. This dynamic parameter adjustment maintains measurement precision where needed while conserving resources by avoiding unnecessary reporting.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent implements partial measurement reporting by only triggering reports when specific conditions are met, rather than continuously reporting all beam measurements. This selective approach maintains sufficient measurement precision for decision-making while significantly reducing resource consumption.

Inventive Principle:

Principle #16Partial or excessive action

3Adaptability or versatility

If separate parameter sets are configured for different measurement conditions, then the adaptability of the system is improved, but the device complexity increases

Engineering Contradiction:

Improvemeasurement reporting configurationVSAvoidconfiguration management

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the configuration into distinct first and second sets of measurement reporting parameters, each associated with specific conditions. This segmentation improves adaptability by allowing independent optimization of each parameter set while managing complexity through clear structural separation and defined usage scenarios.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP4693933A1User equipment and base station involved in event triggered measurement reporting

Publication Date: 2026.02.11 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

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AI summary

The present disclosure relates to a user equipment, UE, comprising the following. A transceiver of the UE, in operation, receives, from a base station, configuration information for configuring event triggered measurement reporting. A processing circuitry of the UE, in operation, obtains, from the configuration information, a first set of measurement reporting parameters, which is useable by the UE for measurement reporting, which is performed in response to determining that measurements on the one or more beams (i) fulfil a first condition obtained from the event triggered measurement reporting configuration and (ii) do not fulfil a second condition obtained from the event triggered measurement reporting configuration, and obtains a second set of measurement reporting parameters, which is useable by the UE for measurement reporting, which is performed in response to determining that measurements on the beam fulfil the second condition. Further, there are provided a base station and methods performed by the UE or the base station.