Multiple Reference Signal Mapping for Beam and Mobility Decisions

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Wireless communication systems face challenges with path loss, which existing technologies have not effectively addressed, particularly in managing beam and mobility management due to varying types of reference signals used by different base stations.

Innovation Solution

A method and apparatus that enable a user equipment (UE) to receive multiple reference signals of different types, allowing for signal quality comparisons and reporting, with a base station selecting event configurations to facilitate meaningful comparisons and trigger events like beam switching or handovers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple different types of reference signals are used by different base stations, then beam management and mobility management can be performed, but signal quality comparisons become meaningless due to varying reference signal types

Engineering Contradiction:

Improvebeam management and mobility management capabilityVSAvoidsignal quality comparison accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent introduces an event configuration message as an intermediary that carries mapping information between different reference signal types and a common reference signal type. This mapping relationship enables the UE to convert measurements of different reference signal types into comparable metrics based on a common reference signal, thereby resolving the incompatibility issue while maintaining the ability to perform beam and mobility management across multiple base stations using different reference signal types

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If event configuration data specifies permitted combinations of reference signals, then meaningful signal quality comparisons can be made, but the complexity of event configuration increases

Engineering Contradiction:

Improvesignal quality comparison accuracyVSAvoidevent configuration complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent changes the parameter representation in event configuration data by introducing reference signal type identifiers and mapping relationships to a common reference signal type. Instead of specifying complex combination rules for each reference signal type, the configuration uses parameter mapping that simplifies the comparison process while maintaining measurement precision across different reference signal types

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentEP3571784B1Event triggering and reporting with multiple reference signals

Publication Date: 2025.09.10 QUALCOMM INC

Figure 1
Figure 2
Figure 3

AI summary

Methods, systems, and devices for wireless communication are described for event triggering and reporting with multiple reference signals. A user equipment (UE) may receive event configuration data that specifies at least one permitted combination of reference signals of different types for generating a signal quality comparison and receive a first reference signal and a second reference signal. The UE may generate signal quality comparison data based at least in part on the event configuration data, the first reference signal, and the second reference signal, and transmit a report to a base station that includes the signal quality comparison data.