Wireless Reference Signal Measurements with Dynamic RMR Activation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless systems face challenges in reducing reference signal overhead to minimize interference and power consumption at transmission/reception points while maintaining effective channel estimation and measurement capabilities.

Innovation Solution

The system implements a method for receiving downlink control information (DCI) that includes indications of reference measurement resources (RMR), measurement configurations, and feedback resource configurations, allowing for selective activation and deactivation of RMRs based on trigger criteria, thereby optimizing reference signal usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If reference signal overhead is reduced to minimize interference and power consumption, then interference and power consumption are reduced, but channel estimation and measurement capabilities may deteriorate

Engineering Contradiction:

ImproveinterferenceVSAvoidchannel estimation accuracy

Core Design Contradiction:

Object-generated harmful factorsVSMeasurement precision

Solution Approach 1:

The patent implements dynamic activation and deactivation of reference measurement resources based on trigger criteria. The network device can selectively activate specific RMR instances for specific measurement purposes (mobility, CSI, positioning, etc.), allowing the system to adapt reference signal transmission to actual needs, thereby reducing unnecessary interference while maintaining measurement accuracy when required

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies different measurement configurations to different RMR instances, allowing each RMR to be optimized for its specific measurement purpose. This enables localized optimization where reference signals are transmitted with appropriate characteristics for each specific measurement type, maintaining precision where needed while reducing overhead elsewhere

Inventive Principle:

Principle #3Local quality

2Use of energy by stationary object

If reference signal overhead is reduced to minimize power consumption at TRP, then power consumption is reduced, but measurement capabilities may deteriorate

Engineering Contradiction:

Improvepower consumption at TRPVSAvoidmeasurement capability

Core Design Contradiction:

Use of energy by stationary objectVSReliability

Solution Approach 1:

The system dynamically controls reference signal transmission based on activation states and trigger criteria. The network device activates RMR instances only when specific measurement purposes are needed, reducing power consumption during normal operation while ensuring measurement reliability is maintained when required by mobility events, CSI reporting, positioning, or radio link monitoring needs

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements periodic measurement opportunities through configured RMR instances that are activated based on trigger criteria. This allows the system to perform measurements periodically when needed rather than continuously, reducing power consumption while maintaining reliable measurement capabilities for critical functions

Inventive Principle:

Principle #19Periodic action

3Quantity of substance

If selective activation of RMR instances is implemented, then reference signal overhead is optimized, but system complexity increases

Engineering Contradiction:

Improvereference signal overheadVSAvoidsystem complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent segments reference measurement resources into multiple RMR instances, each configured for specific measurement purposes (mobility, CSI, positioning, radio link monitoring). This segmentation allows selective activation of individual instances based on current needs, optimizing overhead by transmitting only the necessary reference signals while managing complexity through organized, purpose-specific configurations

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system changes operational parameters by activating or deactivating RMR instances based on trigger criteria and measurement purposes. This parameter control mechanism optimizes reference signal overhead by adjusting which RMR instances are active, while the structured parameter management through DCI and measurement configurations keeps system complexity manageable

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12382332B2Systems and methods for reference signal measurements in wireless systems

Publication Date: 2025.08.05 INTERDIGITAL PATENT HOLDINGS INC

AI summary

Systems, apparatuses, and methods are disclosed for receiving downlink control information (DCI) that may include an indication of a reference measurement resource (RMR), receiving an indication of a measurement configuration, and receiving an indication of a feedback resource configuration. A measurement report based on the indication of an RMR, an indication of a measurement configuration, and an indication of a feedback resource configuration may be generated and may be transmitted to a network device.