High-Speed CSI Reporting Framework for Wireless Devices

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Solution Overview

Problem

Current channel state information reporting configurations are insufficient for high-speed devices in wireless communication networks, particularly in high Doppler scenarios, leading to suboptimal channel estimation and increased feedback overhead.

Innovation Solution

The proposed solution involves enhancing the channel state information reporting framework for high-speed devices by configuring specific time patterns for channel state information reference signal transmissions and reports, including the use of semi-persistent and aperiodic configurations, and introducing higher-layer parameters like HighSpeedCSIEnabled to optimize CSI measurement and reporting, thereby improving channel estimation quality while managing overhead.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional channel state information reporting configurations are used, then device compatibility is maintained, but channel estimation accuracy deteriorates for high-speed devices

Engineering Contradiction:

Improvechannel estimation accuracyVSAvoidconfiguration adaptability for high-speed devices

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic CSI reporting configurations that adapt to device speed conditions. The network can switch between conventional and high-speed optimized configurations based on Doppler shift measurements, allowing the system to maintain optimal performance across varying mobility scenarios while preserving backward compatibility.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent modifies key CSI reporting parameters including time patterns, periodicity, and resource allocation specifically for high-speed devices. By changing these parameters dynamically based on device velocity, the system achieves accurate channel estimation for high-mobility scenarios without affecting conventional devices.

Inventive Principle:

Principle #35Parameter changes

2Measurement precision

If frequent channel state information reporting is implemented for high-speed devices, then channel estimation accuracy improves, but feedback overhead increases

Engineering Contradiction:

Improvechannel estimation accuracyVSAvoidfeedback overhead

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent applies partial action by implementing enhanced CSI reporting only for devices exceeding speed thresholds, rather than all devices. This selective approach maintains channel estimation accuracy for high-speed devices while avoiding unnecessary overhead from devices operating at lower speeds where conventional reporting suffices.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent implements periodic CSI reporting with dynamically adjusted intervals based on device speed and channel conditions. For high-speed devices, the periodicity is optimized to provide sufficient updates for accurate channel estimation while preventing excessive reporting that would unnecessarily increase overhead.

Inventive Principle:

Principle #19Periodic action

3Reliability

If high-speed optimized channel state information framework is deployed, then service quality for high-speed devices improves, but network complexity increases

Engineering Contradiction:

Improvequality of service for high-speed devicesVSAvoidnetwork and user equipment complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the CSI reporting framework into conventional and high-speed optimized modes. This segmentation allows the network to activate only the necessary components for high-speed devices based on their mobility characteristics, improving QOS where needed while maintaining simplicity for the majority of conventional devices.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent designs the enhanced CSI framework with universal elements that can serve both conventional and high-speed devices. By creating a multi-functional configuration system that adapts to different device types, the network achieves improved high-speed performance without requiring entirely separate infrastructure, thereby limiting complexity growth.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20230396300A1Reporting channel state information for high speed devices

Publication Date: 2023.12.07 LENOVO (SINGAPORE) PTE LTD

AI summary

Apparatuses, methods, and systems are disclosed for reporting channel state information for high speed devices. One method (800) includes receiving (802) an indication of a high-speed channel state information framework. The method (800) includes receiving (804) a channel state information reporting configuration corresponding to high-speed devices. The method (800) includes receiving (806) channel state information reference signal resources based on a channel state information reference signal resource configuration. The method (800) includes generating (808) at least one channel state information report based on at least one measurement, at least one configuration, and/or at least one indication according to the channel state information reporting configuration. The at least one channel state information report includes a first part and a second part, and the second part includes at least one group. The method (800) includes reporting (810) the at least one channel state information report to a network.