Precoding Matrix Channel State Report Transmission
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Solution Overview
Problem
Current wireless communication technologies lack an effective transmission mechanism for channel state information comprising a precoding matrix, which is essential for improving communication performance in multi-antenna systems.
Innovation Solution
A method and apparatus for sending and receiving a channel state report that includes a precoding matrix, where the report comprises a number of reported coefficients in coefficient matrixes, allowing the receiving side to acquire the precoding matrix by determining the spatial and frequency domain dimensions based on the reported coefficients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If precoding matrix is transmitted using conventional PMI feedback methods, then communication performance is improved, but no effective transmission mechanism exists for channel state comprising precoding
Solution Approach 1:
The precoding matrix is segmented into coefficient matrices with reported coefficients, allowing selective transmission of only necessary precision levels. The channel state report is divided into manageable components (number of reported coefficients, reported coefficients themselves) that can be efficiently transmitted and processed.
Solution Approach 2:
The invention changes the parameter representation from traditional PMI indices to actual coefficient values in coefficient matrices. This allows the system to transmit precise channel state information directly as numerical parameters rather than relying on predefined codebook entries, enabling flexible precision control.
2Measurement precision
If complete precoding matrix is transmitted, then channel state accuracy is improved, but transmission overhead increases
Solution Approach 1:
Instead of transmitting the complete precoding matrix, the system transmits only the necessary reported coefficients along with the number of reported coefficients. This partial transmission approach provides sufficient channel state information for communication performance improvement while significantly reducing transmission overhead compared to complete matrix transmission.
Solution Approach 2:
The transmission mechanism dynamically adapts the amount of information transmitted based on the number of reported coefficients. The system can adjust the precision and quantity of coefficient data transmitted according to actual communication needs, allowing flexible optimization between accuracy and overhead.
Data Source
AI summary
Provided are a method and apparatus for sending a channel state, a method and apparatus for receiving a channel state and a storage medium. The method for sending a channel state includes following steps: a channel state report for characterizing a channel state comprising a precoding matrix is determined; and the channel state report for characterizing the channel state comprising the precoding matrix is sent, where the channel state report includes: a number of reported coefficients in coefficient matrixes for the precoding matrix and the reported coefficients in the coefficient matrixes for the precoding matrix; where the reported coefficients in the coefficient matrixes for the precoding matrix are used for indicating the precoding matrix.