For the EPA channel with a max of 410 ns delay I tried the following code but I did not get the correct freq domain channel:
chTimeDomain=zeros(410,1);
chDelays=round(info.PathSampleDelays*1/chcfg.SamplingRate*1e9);%PathDelays in nano-sec.
chTimeDomain(chDelays+1)=info.PathGains(1,:);
chFreq=fft(chTimeDomain,ue.NULRB*12); % We are assuming a 0 doppler so assume same freq domain channel for all .
chFreqGrid=repmat(chFreq,1,14);
The idea was to put the pathGains at the right delays and take an appropriately sized FFT, but it did not do the job.
Salman
