CSI Reporting with Compressed Feedback and Priority Dropping
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Solution Overview
Problem
The introduction of artificial intelligence technology for intelligent CSI feedback in new radio (NR) systems lacks a specific solution for determining the content of CSI reports.
Innovation Solution
A method for CSI reporting that includes receiving network configuration information, obtaining a CSI report comprising compressed channel information and/or interference measurement results, and reporting these to the network device, with priority-based dropping mechanisms for reducing feedback overhead when resources are limited.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If intelligent CSI feedback with AI technology is introduced, then CSI feedback accuracy is improved, but feedback overhead increases
Solution Approach 1:
The CSI report is divided into two parts: part 1 containing essential CSI information (RI, CQI, PMI) and part 2 containing detailed channel information. This segmentation allows the network to receive critical feedback while reducing overall overhead by selectively processing different parts.
Solution Approach 2:
The patent extracts and removes unnecessary or redundant information from the CSI feedback process. By identifying and eliminating non-essential elements from the feedback report, the system reduces feedback overhead while preserving the most important channel state information needed for effective communication.
2Productivity
If detailed channel information is included in CSI report, then network performance is improved, but feedback overhead increases
Solution Approach 1:
Different parts of the CSI report are assigned different levels of detail and processing. Part 1 contains condensed essential information for quick processing, while part 2 contains more detailed channel information when needed. This local quality approach ensures that the system provides detailed information where necessary while maintaining efficiency elsewhere.
Solution Approach 2:
The system implements partial action by selectively including detailed channel information in the CSI report based on network conditions and requirements. Instead of always transmitting full detailed information, the system transmits only the necessary portion, reducing overhead while maintaining network performance when conditions warrant detailed feedback.
3Loss of information
If CSI report includes all measurement information, then measurement completeness is improved, but reporting complexity increases
Solution Approach 1:
The reporting process is segmented into structured parts with clear definitions. Part 1 contains essential measurement results (RI, CQI, PMI) that are always reported, while part 2 contains additional detailed channel information that can be reported selectively. This segmentation reduces reporting complexity by providing a clear framework for what information must be included versus what is optional.
Solution Approach 2:
The CSI reporting mechanism is designed to be universal and adaptable. The same reporting structure can accommodate different measurement scenarios and network conditions by selectively including or excluding parts of the report. This multi-functionality allows the system to maintain measurement completeness while managing reporting complexity through a flexible, standardized approach.
Data Source
AI summary
A method and apparatus for CSI reporting are disclosed in embodiments of the disclosure. The method includes the following. A terminal device receives network configuration information sent by a network device and obtain a CSI report based on the network configuration information, where the CSI report includes compressed channel information and/or an interference measurement result. Then the terminal device report the CSI report.