CSI Reporting Resource Group Segmentation for Signaling Overhead
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Solution Overview
Problem
Current mobile communication systems face challenges in supporting high-speed data services, large data traffic, increased connection devices, low latency, and energy efficiency, necessitating advanced techniques such as small cell enhancement, dual connectivity, and non-orthogonal multiple access.
Innovation Solution
A method for measuring and reporting channel state information (CSI) in a wireless communication system, involving dynamic signaling for resource setting selection and configuration, allowing for periodic, aperiodic, or semi-persistent CSI reporting based on time-domain operation modes, reducing control signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic signaling is used for resource setting selection and configuration, then CSI reporting efficiency is improved, but control signaling overhead increases
Solution Approach 1:
The patent segments resource settings into multiple groups (first resource group, second resource group, etc.) where each group contains resource settings associated with specific time-domain operation modes (periodic, aperiodic, semi-persistent). This segmentation allows the UE to efficiently select appropriate resource settings without requiring dynamic signaling for all possible configurations, thereby improving CSI reporting efficiency while controlling signaling overhead through structured organization.
Solution Approach 2:
The patent pre-configures multiple resource settings in different resource groups before CSI reporting occurs. Each resource group is预先 associated with specific time-domain operation modes. When CSI reporting is needed, the UE can directly select from pre-configured options based on the current operation mode, eliminating the need for real-time dynamic signaling and reducing control overhead while maintaining efficient reporting.
2Adaptability or versatility
If multiple resource settings are configured for different time-domain operation modes, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal resource setting structure where each resource group can serve multiple time-domain operation modes (periodic, aperiodic, semi-persistent). Instead of creating entirely separate configurations for each mode, the same resource setting templates can be reused across different groups and modes, reducing device complexity while maintaining full adaptability to support all reporting modes.
Solution Approach 2:
The patent enables dynamic selection of resource settings based on the current time-domain operation mode without requiring complex reconfiguration. The UE can dynamically switch between resource groups corresponding to different modes (periodic, aperiodic, semi-persistent) while using a standardized configuration framework, thereby achieving adaptability with controlled complexity through systematic organization rather than ad-hoc configurations.
Data Source
AI summary
The present disclosure provides a method and an apparatus for measuring and reporting channel state information (CSI) in a wireless communication system. Specifically, a method for reporting CSI by a terminal in a wireless communication system comprises: a step of receiving CSI reporting setting information related to CSI reporting; a step of receiving one or more CSI-reference signals (CSI-RSs); and performing the CSI reporting by using a measurement value estimated by at least one specific CSI-RS among the one or more CSI-RSs, wherein the CSI reporting setting information includes gap information for setting a measurement gap for estimating the measurement value, and the at least one specific CSI-RS can be determined on the basis of the gap information and the time point of performing the CSI reporting.


