CSI Report Triggering Using Candidate Signal Counters

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently triggering channel state information (CSI) reports, particularly in ensuring that reports are generated for candidate reference signals that consistently offer better radio link quality than the current reference signal, and aligning the timing of these reports between the wireless device and the base station.

Innovation Solution

The wireless device increments a counter for candidate reference signals with better radio link quality and triggers a CSI report when the counter reaches a maximum, or evaluates radio link qualities periodically to ensure consistent improvement, and configures a time gap for reporting to align with the base station.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the wireless device triggers CSI reports based on radio link quality measurements, then the accuracy of channel state information is improved, but the signaling overhead and processing complexity increase

Engineering Contradiction:

Improvechannel state information accuracyVSAvoidreport triggering complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The base station pre-configures the wireless device with a list of candidate reference signals and associated counters before CSI reporting is needed. This preliminary configuration enables the device to efficiently trigger CSI reports by simply checking pre-established criteria rather than performing complex real-time analysis, thus improving measurement precision while reducing device complexity

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where the wireless device monitors radio link quality measurements and compares them against configured thresholds, triggering CSI reports only when improvement criteria are met. This selective feedback approach ensures accurate channel state information is provided while minimizing unnecessary reporting overhead and processing complexity

Inventive Principle:

Principle #23Feedback

2Reliability

If the wireless device sends frequent CSI reports to ensure up-to-date channel information, then the communication reliability is improved, but the uplink resource consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoiduplink resource consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The system employs periodic evaluation of radio link qualities at configured intervals rather than continuous monitoring. This periodic action ensures channel information remains sufficiently up-to-date for reliable communication while significantly reducing uplink resource consumption compared to continuous or overly frequent reporting

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The base station configures parameters such as evaluation periodicity, improvement thresholds, and counter values to optimize the balance between communication reliability and resource consumption. By adjusting these parameters, the system adapts to different channel conditions and service requirements, ensuring reliable communication while minimizing unnecessary uplink transmissions

Inventive Principle:

Principle #35Parameter changes

3Measurement precision

If the wireless device evaluates multiple candidate reference signals to find the best signal, then the channel state information quality is improved, but the processing time and complexity increase

Engineering Contradiction:

Improvechannel state information qualityVSAvoidreport triggering time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The base station pre-configures the wireless device with a list of candidate reference signals and their associated evaluation criteria before CSI reporting is needed. This preliminary action allows the device to efficiently evaluate multiple candidates by comparing against pre-established thresholds rather than performing complex real-time analysis, thus improving channel state information quality while minimizing processing time

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The wireless device autonomously evaluates candidate reference signals using pre-configured criteria and automatically triggers CSI reports when improvement conditions are met, without requiring continuous base station intervention. This self-service approach improves channel state information quality through multi-candidate evaluation while reducing overall processing time by eliminating repeated signaling exchanges

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20250350987A1Channel State Information Report Triggering

Publication Date: 2025.11.13 COMCAST CABLE COMM LLC

AI summary

A wireless device may communicate with a base station. CSI reporting may be initiated by a wireless device. Candidate reference signals may be provided to the wireless device. Multiple counters may be used for the candidate reference signals such that each candidate reference signal may have a respective counter. A counter of a candidate reference signal may be incremented, for example, based on a radio link quality of the candidate reference signal being better than (e.g., by a threshold value) a radio link quality of a current reference signal used for CSI reporting. A CSI report for the candidate reference signal may be triggered, for example, based on the counter of the candidate reference signal reaching a maximum count.