Inter-Cell Beam Management with Unified UE Measurement Reports

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Solution Overview

Problem

Existing wireless communication systems lack efficient techniques for UEs to report inter-cell beam measurements, particularly in scenarios where separate reports are required for the serving cell and neighboring cells, leading to inefficiencies in beam management.

Innovation Solution

A network entity configures a UE with a resource set including a list of resources and indices corresponding to cell identifiers, enabling the UE to transmit a single beam report that includes measurements from both the serving and neighboring cells, thereby enhancing inter-cell beam management efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If separate beam reports are transmitted for serving cell and neighboring cells, then beam measurement accuracy is improved, but signaling overhead increases

Engineering Contradiction:
Improvebeam measurement accuracyVSAvoidsignaling overhead
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent combines serving cell beam measurements and neighboring cell beam measurements into a single unified beam report message. The report includes both L1-RSRP values for serving cell beams and neighboring cell beams, along with corresponding beam identifiers, allowing the network to receive comprehensive beam quality information in one transmission rather than multiple separate reports.

Inventive Principle:
Principle #5Merging (Combining)

2Loss of information

If multiple separate measurement reports are transmitted, then complete beam information is provided, but transmission time increases

Engineering Contradiction:
Improvebeam information completenessVSAvoidreport transmission time
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The patent merges multiple measurement reports into a single comprehensive report structure that includes serving cell beam measurements, neighboring cell beam measurements, and associated identifiers all in one message. This unified report structure eliminates the need for multiple sequential transmissions, reducing overall transmission time while maintaining complete beam information.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If detailed beam measurement reports are sent for all cells, then network optimization capability is improved, but processing complexity increases

Engineering Contradiction:
Improvenetwork optimization capabilityVSAvoidreport processing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the beam measurement report into distinct sections: serving cell beam measurements with their identifiers, and neighboring cell beam measurements with their identifiers. This structured segmentation allows the network to process different cell types separately while receiving comprehensive information, improving optimization capability without overwhelming processing complexity through organized data presentation.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250274797A1Inter-cell beam management in a wireless communication system
Publication Date: 2025.08.28 GOOGLE LLC
  • US20250274797A1 patent drawing
  • US20250274797A1 patent drawing
  • US20250274797A1 patent drawing

AI summary

To configure inter-cell measurements at a user equipment (UE), a RAN node transmits, to the UE, a resource set including (i) a list of N resources for signal measurement and (ii) a list of N indices corresponding to the N resources, each index in the list of N indices referencing an identifier of a cell with which the signal measurement is associated. The RAN node receives, from the UE, a measurement report based on the resource set.