Use the vector returned by lteSLResourceGridSize to create a MATLAB® array. Valid and equivalent sidelink subframe resource grids can be created using the lteSLResourceGrid function or the MATLAB zeros function.

Create a UE settings structure. Use the output from lteSLResourceGridSize as input to zeros to generate an empty resource grid.

ue = struct('NSLRB',6,'CyclicPrefixSL','Normal');

reGrid1 = zeros(lteSLResourceGridSize(ue));

Generate another empty resource grid, this time use lteSLResourceGrid.

reGrid2 = lteSLResourceGrid(ue);

Confirm the two grids are identical.

isequal(reGrid1,reGrid2)

ans = logical
   1

Create an empty resource grid for two antenna planes using the vector returned by lteSLResourceGridSize and the function zeros.

Create a UE settings structure and define a local variable for the number of antennas.

ue = struct('NSLRB',6,'CyclicPrefixSL','Normal');
ntxant = 2;

Generate an empty resource grid.

reGrid = zeros(lteSLResourceGridSize(ue,ntxant));
size(reGrid)

ans = 1×3

    72    14     2

The third dimension indicates that two antenna planes are defined in the output grid.