CSI Reporting Sub-Configurations for Dynamic Antenna Changes

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Solution Overview

Problem

In wireless communication applications, network devices dynamically adjusting antennas or transmission power can cause inaccurate or untimely reporting of Channel State Information (CSI), affecting transmission performance.

Innovation Solution

A method and apparatus for indicating CSI, involving a terminal equipment receiving a CSI report configuration with S sub-configurations and indication information to trigger at least one of these sub-configurations, enabling efficient and accurate CSI reporting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If the network device dynamically adjusts the number of antennas or transmission power for energy saving, then energy consumption is reduced, but the channel state information reporting becomes inaccurate or untimely

Engineering Contradiction:

Improveenergy consumptionVSAvoidchannel state information accuracy

Core Design Contradiction:

Loss of energyVSMeasurement precision

Solution Approach 1:

The CSI reporting configuration is divided into multiple sub-configurations, each corresponding to different antenna configurations or transmission power levels. The network device can selectively activate specific sub-configurations based on current operational conditions, allowing accurate CSI reporting for each segment while maintaining overall energy efficiency.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system dynamically switches between different CSI reporting sub-configurations based on the network device's operational state. When antenna configuration or transmission power changes, the corresponding CSI sub-configuration is activated to ensure accurate channel state information is reported for the current dynamic condition.

Inventive Principle:

Principle #15Dynamics

2Reliability

If multiple CSI reports are configured for different antenna configurations, then transmission performance is maintained, but signaling overhead and resource consumption increase

Engineering Contradiction:

Improvetransmission performanceVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

A single CSI reporting configuration structure serves multiple functions by incorporating multiple sub-configurations. This unified configuration can adapt to different antenna configurations and transmission power levels without requiring separate independent configurations, reducing signaling overhead while maintaining comprehensive coverage for various operational scenarios.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent extracts only the necessary CSI reporting parameters for each specific antenna configuration or power level into separate sub-configurations, rather than transmitting complete redundant configurations. This selective extraction reduces the amount of signaling data while ensuring that only relevant CSI information is reported for each operational state.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS20260074764A1Method and apparatus for reporting channel state information

Publication Date: 2026.03.12 1FINITY INC

AI summary

A method and an apparatus for indicating channel state information, the method including: a terminal equipment receives a channel state information (CSI) report configuration, the channel state information (CSI) report configuration being related to L pieces of CSI, the channel state information (CSI) report configuration including S sub-configurations, where 1≤S≤L, one of the S sub-configurations corresponds to at least one piece of channel state information (CSI); the terminal equipment further receives indication information, the indication information being used to trigger (indicate/activate) at least one of the S sub-configurations.