clc;clear
numbits=168;             %------------------輸入符號數
channelname=1;           %------------------信道類型
Nid=0;                   %------------------小區組號
Ns=2;                    %------------------時隙號
Nidmbsf=2;
nRNTI=2;
numberOfLayers=4;        %------------------映射層數
b_1=randint(1,numbits);  %------------------隨機輸入序列
b_2=randint(1,numbits);
q=2;                                                                                                                                                                                                                                                             
P=4;
v=4;
index_codeBook=2;
index_CDD=0;
NDLRB=2;
maxl=7;
d_1=downlink_scrambling(b_1,numbits,channelname,Nid,Ns,Nidmbsf,nRNTI,q);               %------------發送端經加擾后的信號
d_2=downlink_scrambling(b_2,numbits,channelname,Nid,Ns,Nidmbsf,nRNTI,q); 
% de_d1=de_scrambing(d_1,numbits,channelname,Nid,Ns,Nidmbsf,nRNTI,q);                       %------------接收端經解擾后的信號 
% de_d2=de_scrambing(d_2,numbits,channelname,Nid,Ns,Nidmbsf,nRNTI,q); 
d_symb_1=QAM_16(numbits,d_1);                                                          %------------發送端經調制后的1路信號
d_symb_2=QAM_16(numbits,d_2);                                                          %------------發送端經調制后的2路信號
% de_d_1=de_QAM_16(d_symb_1,numbits);
% de_d_2=de_QAM_16(d_symb_2,numbits);
x=layerMappingForSpatialMultiplexingTwoCodeWords(numberOfLayers,d_symb_1,d_symb_2);
% [de_symb_1,de_symb_2]=de_layerMappingForSpatialMultiplexingTwoCodeWords(numberOfLayers,x);
y=pre_spatialMultiplexing(x,P,v,index_codeBook,index_CDD,numbits);
%  de_x=pre_spatialMultiplexing(y,P,v,index_codeBook,index_CDD,numbits);                    %-----------解預編碼
a=map_resourceforfourantennaports(y);
% %de_y=de_map_resourceforfourantennaports(a);
signal = ifft_ofdm_basesignal_gen(NDLRB,maxl,a);
designal = de_fft_ofdm_basesignal_gen(NDLRB,maxl,signal);