Draft: TDLA30, TDLB100 and TDLC300 channel models

• Add TDLA30, TDLB100 and TDLC300 in channel model options for phy-simulator nr_ulsim;
• Implementation of tables with taps and delays for TDLA30, TDLB100 and TDLC300 channel models;
• Add MIMO correlation matrices for medium and high correlation (up to 4x4 and 2x8 scenarios);
• TDL channel model implementation for low, medium and high correlation scenarios;
• Add channel correlation level as command line option in nr_ulsim;
• Fix the 3GPP CI tests considering the new options in command line for nr_ulsim.

Command line option to set the channel model: -g

Arguments list: Number of arguments = 2, {Channel model: [A] TDLA30, [B] TDLB100, [C] TDLC300}, {Correlation: [l] Low, [m] Medium, [h] High}, e.g. -g A,l

Example for 3GPP G-FR1-A4-13 2 RX Antennas Requirements Test (channel model TDLC300, low correlation):

sudo LD_LIBRARY_PATH=. ./nr_ulsim -m16 -r106 -s8.8 -S9.4 -z2 -n200 -U 1,1,1,2 -g C,l -b14 -t70 -I15 -i 1,0

Future work:

• Add more 3GPP tests for CI;
• Add Doppler effect;