Network Node Serving Cell Measurement Configuration

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Solution Overview

Problem

Current technologies lack configurations for performing serving cell measurements in New Radio (NR) wireless communications networks, particularly for PCell and SCell, which are essential for carrier aggregation and dual connectivity.

Innovation Solution

A method and network node configuration that allows wireless devices to perform cell-level measurements using multiple reference signal types, such as NR-PSS, NR-SSS, PBCH DMRS, and CSI-RS, to determine the suitability of cells for serving connections, enabling better evaluation of cell quality and resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple reference signal types are configured for serving cell measurements, then measurement accuracy and cell quality evaluation are improved, but configuration complexity and processing overhead increase

Engineering Contradiction:
Improvecell quality evaluation accuracyVSAvoidconfiguration complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the reference signal configuration by separating serving cell measurements from non-serving cell measurements. For serving cells (PCell and SCell), the UE uses the same reference signal type (CSI-RS or SSB) as configured by the network, rather than evaluating multiple signal types. This segmentation simplifies the configuration while maintaining measurement accuracy by focusing on the most relevant reference signals for each cell type.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies partial action by not requiring full evaluation of all reference signal types for serving cells. Instead of configuring multiple reference signal types for serving cell measurements, the system uses a subset (one type per cell) which is sufficient for accurate cell quality evaluation, thereby reducing configuration complexity and processing overhead.

Inventive Principle:
Principle #16Partial or excessive action

2Reliability

If multiple reference signal types are monitored for serving cells, then cell suitability determination is improved, but processing energy and computational resources increase

Engineering Contradiction:
Improvecell suitability determinationVSAvoidprocessing energy
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts and removes the requirement to monitor multiple reference signal types for serving cells. By taking out the excessive monitoring requirement and keeping only the essential single reference signal type per serving cell, the system maintains reliable cell suitability determination while significantly reducing processing energy consumption.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system performs partial monitoring by evaluating only one reference signal type per serving cell rather than all available types. This partial action approach provides sufficient information for cell suitability determination without the excessive processing energy cost of monitoring all reference signal types.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If serving cell measurements use multiple signal types, then measurement coverage and reliability are improved, but resource allocation efficiency decreases

Engineering Contradiction:
Improvemeasurement coverageVSAvoidresource allocation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies local quality by tailoring the reference signal measurement approach to the specific characteristics of serving cells. Each serving cell (PCell and SCell) uses the reference signal type most appropriate for its function and transmission characteristics, rather than uniformly applying multiple signal types across all cells. This optimizes resource allocation efficiency while maintaining measurement reliability.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3913976B1Network node and method performed thereby for handling measurements on a set of cells
Publication Date: 2025.10.08 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • EP3913976B1 patent drawingFigure 1a~1b
  • EP3913976B1 patent drawingFigure 2~3
  • EP3913976B1 patent drawingFigure 4

AI summary

A method, performed by a network node (110), for handling measurements by a wireless device (130) on a set of cells comprising at least a first cell (121), the cells in the set being serving cells, the network node (110) and the wireless device (130) operating in a wireless communications network (100), the method comprising providing (301) a first indication to the wireless device (130), the first indication comprising a configuration, per configured event, of one or more events, wherein each of the one or more events sets a condition to trigger a measurement report, wherein at least one of the one or more events is configured in at least one reportConfig, linked to a measurement object whose Reference Signal, RS, Type within the reportConfig is set to one type of signal of one or more types of signals to perform measurements on, and obtaining (302), based on the provided first indication, a second indication from the wireless device (130), the second indication being based on the measurements, by the wireless device (130), on the at least the one type of signal that is set within the reportConfig.