I have asked this at LTEUNIVERSITY but no luck -
I'm confused with FFT size and number of occupied sub carrier in LTE,
I can understand relation between sampling rate and FFT. But In my understanding, the number of frequency that we can get from FFT/DFT operation is only half of FFT size, for example NFFT 1024 can only analyze 512 frequency, SO, why in these LTE standard, for example 10 MHz bandwidth LTE which is have 600 sub carrier can use 1024 FFT since 1024 FFT only able to analyze 512 frequency.
Appreciate your help .