function [p Nt] = txwin_eval(Nu, Ng, Alpha)

Nfft = Nu; % FFT size
CP = Ng; % Nb. samples in Cyclic Prefix
%Alpha = 1/32; % RX Alpha
Nt = 2*round(Nfft*Alpha/2); % Nb. samples in taper region
p = 1/2*(1+cos(pi*[-Nt+1/2:Nt-1/2]/Nt)); % Raised-Cosine in TD
p = [p(1:Nt), ones(1,Nfft+CP-Nt), p(Nt+1:2*Nt)]; % Add ones in middle