Terminal Multi-Panel TRP CSI Measurement Reporting
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Solution Overview
Problem
In next-generation mobile communication systems, specifically in NR specifications up to Rel. 15, the method for performing CSI measurement and reporting is unclear for multi-panel/TRP scenarios, leading to potential system performance degradation such as throughput reduction.
Innovation Solution
A terminal equipped with a receiving section for configuration information on channel measurement resources and a control section for group-based beam reporting or channel state information reporting across multiple transmission/reception points, enabling appropriate CSI measurement and reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-panel/TRP transmission is implemented in NR systems, then system capacity and data rates are improved, but CSI measurement and reporting methods become undefined leading to performance degradation
Solution Approach 1:
The patent segments the CSI reporting process into multiple distinct components: separate CSI reports for each TRP, separate beam management for each panel, and structured configuration information for multiple channel measurement resources. This segmentation allows the system to handle multi-TRP complexity by treating each TRP-panel combination independently while maintaining overall system coordination through the base station.
Solution Approach 2:
The patent implements preliminary action by establishing detailed configuration information for channel measurement resources before actual CSI measurement and reporting occurs. The base station pre-configures multiple channel measurement resource sets, associates them with specific TRPs and panels, and defines reporting formats in advance, enabling the terminal to perform measurements and reports systematically without ambiguity during operation.
2Reliability
If CSI measurement and reporting are not properly defined for multi-panel/TRP, then system performance degrades through throughput reduction
Solution Approach 1:
The patent implements feedback mechanisms where the terminal measures channel quality for each configured channel measurement resource associated with different TRPs and panels, then reports CSI information back to the base station. This feedback loop enables the base station to adaptively adjust transmission parameters for each TRP based on actual channel conditions, ensuring reliable performance while maximizing throughput through informed resource allocation.
Data Source
AI summary
To appropriately perform CSI measurement and reporting for multi-panel/TRP. A terminal according to one aspect of the present disclosure includes a receiving section that receives configuration information related to a plurality of pairs of channel measurement resources, and a control section that controls, on the basis of the configuration information, group-based beam reporting or channel state information reporting for a plurality of transmission/reception points.