Multi-Resource CSI Reporting for Antenna Shutdown Cases
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Solution Overview
Problem
The limitation of terminal device capabilities in reporting channel state information (CSI) in various antenna shutdown cases due to limited CSI reporting configurations, leading to suboptimal data scheduling on the network side.
Innovation Solution
Optimizing resource configuration by using multiple CSI-RS resources and reporting channel quality indicators (CQIs) to enhance CSI reporting accuracy, including techniques such as differential CQI values and spatial domain correlation to reduce resource overheads and calculation complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the network device configures multiple CSI reporting configurations for different antenna shutdown cases, then the terminal device can report CSI in various antenna shutdown cases, but the terminal device capability limitation restricts the quantity of CSI reporting configurations to 4, making it impossible to cover all antenna shutdown cases
Solution Approach 1:
The patent segments the CSI reporting process by dividing M resource packages into multiple groups, where each group contains L resource packages. The terminal device reports CSI for L resource packages within each group, and the network device configures multiple such groups to cover different antenna shutdown cases. This segmentation allows comprehensive coverage without requiring a single configuration to handle all cases, resolving the contradiction between adaptability and device complexity.
2Measurement precision
If the terminal device reports CSI for multiple resource packages, then the accuracy of CSI reporting improves, but the resource overheads and calculation complexity increase
Solution Approach 1:
The patent applies partial action by having the terminal device report CSI for only L resource packages (where L is less than M) within each group of M resource packages. This partial reporting approach maintains sufficient CSI accuracy for data scheduling while reducing the resource overheads and calculation complexity compared to reporting all M resource packages. The network device can configure multiple groups to achieve comprehensive coverage without requiring full reporting in each case.
Data Source
AI summary
This application discloses a communication method, apparatus, and system, and a computer-related apparatus. The method includes: receiving first indication information; determining first channel state information based on L resource packages in M resource packages indicated by the first indication information; and sending the first channel state information. L is greater than 1, the resource package is associated with one or more channel state information reference signal resources, the first channel state information includes L channel quality indicators, the L channel quality indicators correspond to L channel state information reference signal resources, and the L channel state information reference signal resources respectively belong to the L resource packages.