Create an Empty Resource Grid

This example shows how to create an empty resource grid of the right dimensions for the cell-wide settings specified in structure enb.

Specify the cell-wide settings in a parameter structure.

enb.CyclicPrefix = 'Normal';
enb.NDLRB = 9;
enb.CellRefP = 2;

Create an empty resource grid by calling the lteDLResourceGrid function.

resourceGrid1 = lteDLResourceGrid(enb);
size(resourceGrid1)

ans = 1×3

   108    14     2

The resulting matrix resourceGrid is 3-dimensional.

Alternatively, you can use the MATLAB® zeros function. Specify the parameter structure. For normal cyclic prefix, specify seven symbols per slot.

enb.CyclicPrefix = 'Normal';
enb.NDLRB = 9;
enb.CellRefP = 2;
noSymbolsSlot = 7;

Create an empty resource grid. This time, call the MATLAB zeros function.

resourceGrid2 = zeros(enb.NDLRB*12, noSymbolsSlot*2, enb.CellRefP);
size(resourceGrid1)

ans = 1×3

   108    14     2

Compare the two resource grids to show they are equal in size and content.

isequal(resourceGrid1,resourceGrid2)

ans = logical
   1