Terminal CSI Configuration for Multi-Frequency Multi-TRP Reporting
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Solution Overview
Problem
In radio communication systems with multi-TRP (Transmission/Reception Point) scenarios, the appropriate settings for CSI measurement and reporting at different frequencies are unclear, leading to potential decreases in communication throughput.
Innovation Solution
A terminal and base station configuration that includes a receiving section for channel state information (CSI) report and control section for CSI measurement and reporting across multiple frequencies, utilizing a reference signal to facilitate accurate reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-TRP is applied with L1/L2 inter-cell mobility to switch serving cell to a cell with different PCI, then communication capacity is increased, but CSI measurement and reporting settings become unclear and communication throughput decreases
Solution Approach 1:
The patent applies parameter changes by introducing a new configuration parameter `csi-ReportConfig` that includes a field `firstFrequency` to specify the frequency for CSI measurement. This parameter change enables the terminal to perform CSI measurement at a frequency different from the serving cell frequency, resolving the ambiguity in CSI measurement settings under multi-TRP inter-cell mobility while maintaining clear operational procedures for measurement and reporting.
2Productivity
If CSI measurement and reporting are not performed appropriately at multiple frequencies, then device complexity is reduced, but communication throughput decreases
Solution Approach 1:
The patent applies segmentation by dividing the CSI measurement configuration into separate frequency-specific components. The `csi-ReportConfig` is segmented to include `firstFrequency` for measurement frequency and `secondFrequency` for reporting frequency, allowing independent configuration of measurement and reporting parameters at different frequencies. This segmentation enables appropriate multi-frequency CSI measurement without creating overly complex integrated configuration mechanisms.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes a receiving section that receives at least one of a channel state information (CSI) report configuration and a CSI resource configuration indicating one or more frequencies, and a control section that controls CSI measurement and CSI reporting using a reference signal at the one or more frequencies. According to an aspect of the present disclosure, it is possible to perform appropriate measurement or reporting at a plurality of frequencies.