CSI Report Configuration Switching for Precoding and Resource Efficiency

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Solution Overview

Problem

Existing radio transmission systems face challenges in efficiently managing channel state information (CSI) report configurations, leading to suboptimal precoding matrix determination and resource utilization.

Innovation Solution

Implementing apparatus and methods for receiving and transmitting CSI report configurations, including primary and secondary configurations, with metrics-based calculations and sorting to determine optimal CSI reporting quantities, allowing for dynamic switching between configurations based on performance and resource efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple channel state information report configurations are implemented, then the accuracy of precoding matrix determination is improved, but the device complexity increases

Engineering Contradiction:
ImproveCSI reporting accuracyVSAvoidconfiguration management complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the CSI report configurations into a primary configuration and one or more secondary configurations. The primary configuration contains basic CSI reporting parameters, while secondary configurations contain additional or alternative parameters. This segmentation allows the system to manage multiple configurations in an organized manner, improving CSI reporting accuracy without overwhelming device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic switching between primary and secondary CSI report configurations based on channel conditions, traffic requirements, and network state. The network can activate or deactivate secondary configurations as needed, allowing the system to adapt to changing conditions and optimize CSI reporting accuracy while managing device complexity through selective activation rather than continuous processing of all configurations.

Inventive Principle:
Principle #15Dynamics

2Productivity

If multiple channel state information report configurations are implemented, then the resource allocation efficiency is improved, but the computational overhead increases

Engineering Contradiction:
Improveresource allocation efficiencyVSAvoidcomputational overhead
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent applies partial action by implementing secondary CSI report configurations that are not always active but are selectively activated based on specific conditions. Instead of continuously processing all possible configurations, the system performs calculations and comparisons only when secondary configurations become relevant, thereby improving resource allocation efficiency while avoiding excessive computational overhead during normal operation.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The patent changes parameters such as reporting periodicity, frequency granularity, and spatial resolution between primary and secondary configurations. By adjusting these parameters based on channel conditions and traffic requirements, the system can optimize resource allocation efficiency without requiring full computational processing of all configurations simultaneously, thus managing computational overhead effectively.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If dynamic switching between configurations is enabled, then the adaptability to channel conditions is improved, but the difficulty of detecting and measuring increases

Engineering Contradiction:
Improveconfiguration adaptabilityVSAvoidconfiguration performance measurement
Core Design Contradiction:
Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent implements feedback mechanisms where the network monitors the performance of active CSI report configurations and uses this information to make informed decisions about switching between primary and secondary configurations. The feedback loop includes measuring channel quality indicators, evaluating precoding performance, and adjusting configuration activation accordingly, which improves adaptability while managing the complexity of performance measurement through systematic monitoring.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4601211A1Method, apparatus and computer program relating to channel state information report configurations for radio transmissions
Publication Date: 2025.08.13 NOKIA TECHNOLOGIES OY
  • EP4601211A1 patent drawingFigure 1~2
  • EP4601211A1 patent drawingFigure 3~4
  • EP4601211A1 patent drawingFigure 5~6

AI summary

A technique comprising: making measurements of one or more signals transmitted by a transmitting device; determining, based on the measurements, that one or more channel state information report configurations satisfy one or more conditions; and transmitting to the transmitting device a report including channel state information according to the one or more channel state information report configurations.