Questions for NB-IoT NPUSCH Block Error Rate Simulation

When I was running the code for NB-IoT BLER Simulation at https://ww2.mathworks.cn/help/lte/examples/nb-iot-npusch-block-error-rate-simulation.html

I get error at line 233 : rxSlot = lteSCFDMADemodulate(ue,chs,rxWaveform);

It went wrong because

1)The SCFDMADemodulate function of LTE Toolbox 3.0 couldn't read the input struct chs.Though it seems the chs struct doesn't get involved in following steps.

2)I read the code of this function in which i thought the input argument rxWaveform ought to contain a whole subframe ,so that the function could run demodulation in subframes,but in the BLER simulation code a slotgrid was passed to the function, which means the function only got half of a subframe.

If I should upgrade my toolbox or it's the simulation code that led to mistakes?I have got stuck for days.

Please help.THX.

Answer 1

[Chidvi Modala]

Hi,

I am not able to reproduce the error. It would be helpful if you can provide with the following additional information

• Can u provide the complete error you are getting
• Can u also provide the changes you made to the code in the existing example, If any