Mapping PDSCH and DM-RS symbols to slot grid

This is related to the matlab user guide: 5G library for LTE system toolbox. I have generated the PDSCH and DMRS symbols and their respective indices, now I need to map them to the slot grid and perform precoding->CP-OFDM. I was wondering if there's any matlab command for 'Map to slot grid' or if not, how can we map the PDSCH data and DMRS symbols onto the resource blocks.

Answer 1

[Graham Freeland]

'Map to slot grid' just means using the MATLAB assignment operation i.e.

slotgrid(pdschindices) = pdschsymbols; slotgrid(pdschdmrsindices) = pdschdmrssymbols;

The RE indices are 1-based, linear indices of the normal MATLAB array indexing format.

You'll see this assignment in the link throughput example, included in the 5G Library.

[Graham Freeland]

Hi there,

Check out the new 5G Toolbox, released for R2018b.

You can find the product info here: https://www.mathworks.com/products/5g.html

and the documentation here: https://www.mathworks.com/help/5g/

Graham