How to use lteTestModel vs lteRMCDL on receiving part when we want to decode LTE signal?

I have generated LTE signal with "1.1" test model, using "LTE waveform generator". Now I want to decode it.

So if I do

enb = lteTestModel('1.1', '20MHz')

I see 1x1 struct with PDSCH of Modulation scheme, TxScheme = Port0.

Now after

1. Freq correction & Cell search
2. OFDM demod
3. Channel estimation & noise equalization part

I'm ready to decode channels from OFDM demodulated rxGrid. However, I need to know PDSCH.TrBlkSizes which is configured using lteRMDCL, which is another LTE app for Downlink generation.

I can't figure out which lteRMDCL model should I use. I assume, that 20MHz BW for 1.1 model has 100RB, so it's R.9 RMDCL. But still not sure.

Trying to guess both models relations in ETSI 136 101 V15.9.0 (2020-02), page 1477.