Multi-Cell CSI Reporting Structure for Terminal Cell Switching
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Solution Overview
Problem
Existing radio communication systems face challenges in performing appropriate channel state information (CSI) reporting across multiple cells, leading to suppressed communication throughput and deteriorated quality due to incomplete measurement results from user equipment (UE) reports.
Innovation Solution
A terminal equipped with a control section to generate CSI reports including measurement results for both serving and candidate cells, enabling comprehensive CSI reporting across multiple frequencies and cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the CSI report includes only measurement results related to a beam of only a serving cell or only a candidate cell, then the reporting structure is simple, but the network cannot obtain measurement results of a switch candidate or switch source, making it difficult to judge cell switching
Solution Approach 1:
The CSI report is segmented into multiple fields, where each field indicates measurement results for specific cells (serving cell, candidate cell, or both). This segmentation allows the network to obtain comprehensive measurement results while maintaining a structured and manageable report format.
Solution Approach 2:
The patent adds a new dimension to the CSI report by including multiple cell measurement results in a single report. Instead of separate reports for serving and candidate cells, the patent combines them in one report with multiple fields, enabling the network to evaluate cell switching options comprehensively.
2Productivity
If appropriate CSI reporting is not implemented, then the reporting complexity is reduced, but communication throughput improvement is suppressed and communication quality deteriorates
Solution Approach 1:
The CSI report structure is designed to be universal and multi-functional. A single CSI report can serve multiple purposes: reporting serving cell measurements, candidate cell measurements, or both simultaneously. This universality enables the network to make informed cell switching decisions while improving communication throughput and quality.
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3B
AI summary
A terminal according to one aspect of the present disclosure includes a control section that generates a channel state information (CSI) report including at least one field indicating a measurement result of a reference signal related to a serving cell, and a transmitting section that transmits the CSI report. According to one aspect of the present disclosure, it is possible to appropriately perform CSI reporting related to a plurality of cells.