nrCSIIMConfig

Overview

nrCSIIMConfig is a MATLAB class for configuring Channel State Information Interference Measurement (CSI-IM) in compliance with 3GPP TS 38.214 Section 5.2.2.4. It leverages the nrCSIRSConfig object from the 5G Toolbox to handle CSI-RS-related configurations internally while exposing a simplified interface for CSI-IM setup.

Features

• Supports CSI-IM patterns 0 and 1 similar to CSI-RS rows 5 and 4, respectively.
• Configurable with any number of Tx ports in contrast to CSI-RS configuration with row 4 and 5.
• Automatically configures the internally used nrCSIRSConfig object.
• Enables setting all CSI-IM parameters such as symbol locations, subcarrier locations, and resource block allocation.
• Get CSI-IM resource element indices from pre-configured carrier object with different formatting options.

Installation

Ensure you have the MATLAB 5G Toolbox installed before using this package.

Usage

Below is an example script demonstrating how to use nrCSIIMConfig:

% Create a CSI-IM configuration object with default settings
csiim = nrCSIIMConfig;

% Modify properties
csiim = nrCSIIMConfig;
csiim.pattern = 0; % pattern 0 or pattern 1
csiim.SubcarrierLocations = 4;
csiim.SymbolLocations = 9;
csiim.NumTxPorts = 32; 
csiim.NumRB = carrier.NSizeGrid;
csiim.RBOffset = carrier.NStartGrid;
csiim.CSIRSPeriod = [5 0];
csiim.Density = 'one';

% create default carrier object
carrier = nrCarrierConfig;

% Get resource element indices in linear indexing format
csiImInd = csiim.indices(carrier); 

Repository Structure

repo/
│   README.md    % Documentation
│   nrCSIIMConfig.m  % CSI-IM Configuration Class
│   example.m    % Example usage script

Contact

For questions or contributions, feel free to open an issue or submit a pull request.