Panel-Specific CSI Reporting for Wireless Communication Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently reporting channel state information (CSI) across multiple panels, leading to suboptimal beam management and downlink signal transmission, particularly in next-generation mobile communication systems requiring high data rates, low latency, and energy efficiency.
Innovation Solution
A method for reporting CSI that involves transmitting UE capability information related to multiple panels, receiving configuration information for CSI reporting, and transmitting CSI based on measurement results for downlink reference signals, including panel-specific information to enable panel-specific reporting and downlink signal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If panel-specific CSI reporting is implemented, then beam management precision and downlink signal transmission stability are improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent segments CSI reporting by associating it with specific panels (panel IDs). Instead of treating all antenna panels uniformly, the system divides CSI reporting into panel-specific instances, allowing precise beam management per panel while managing complexity through structured segmentation of reporting tasks.
Solution Approach 2:
The patent applies local quality by enabling different CSI reporting configurations for different panels. Each panel can have tailored reporting parameters, measurement settings, and resource allocations based on its specific characteristics and channel conditions, rather than applying a uniform configuration across all panels.
2Productivity
If multiple panels are used for downlink signal transmission, then data rate and reliability are improved, but channel state information measurement and reporting complexity increase
Solution Approach 1:
The patent segments the channel state information measurement and reporting process by panel. Each panel's CSI is measured and reported separately with its own configuration, allowing the system to manage multiple panels for high data rates while controlling measurement complexity through structured panel-specific processing.
Solution Approach 2:
The patent creates a universal framework for multi-panel operation where a single standardized procedure handles CSI reporting across multiple panels. The gNB can configure and manage multiple panels using the same reporting mechanism, reducing overall system complexity despite the increased capability to support multiple panels simultaneously.
3Productivity
If panel-specific CSI reporting is configured, then downlink signal transmission efficiency is improved, but signaling overhead and configuration complexity increase
Solution Approach 1:
The patent extracts panel identification information (panel ID) as a separate, dedicated element within the CSI reporting structure. By isolating the panel identifier, the system can efficiently manage panel-specific reporting without excessive overhead, as the panel ID can be reused across multiple reporting instances and configurations.
Solution Approach 2:
The patent changes the reporting parameters dynamically based on panel configuration. The gNB can adjust CSI reporting parameters such as periodicity, resources, and content based on the specific panel being reported, optimizing transmission efficiency while adapting signaling overhead to actual needs rather than using fixed conservative configurations.
Data Source
AI summary
A method for reporting channel state information (CSI) performed by a UE in a wireless communication system according to an embodiment of the present disclosure includes transmitting UE capability information related to a plurality of panels, receiving configuration information related to reporting of CSI, receiving a downlink reference signal (DL RS) based on the configuration information, and transmitting CSI related to a measurement result for the DL RS.