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fixed bugs in UL power control

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fixed bug in freq_channel when used with perfect channel estimation



git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5778 818b1a75-f10b-46b9-bf7c-635c3b92a50f
This commit is contained in:
Florian Kaltenberger
2014-09-09 15:36:59 +00:00
parent edd3e2502a
commit b1d742e057
21 changed files with 166 additions and 120 deletions
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openair1/SIMULATION/TOOLS/abstraction.c
+14 -9
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@@ -85,33 +85,38 @@ void init_freq_channel(channel_desc_t *desc,uint16_t nb_rb,int16_t n_samples) {
void freq_channel(channel_desc_t *desc,uint16_t nb_rb,int16_t n_samples) {
int16_t f;
int16_t f,f2,d;
uint8_t aarx,aatx,l;
double *clut,*slut;
static int freq_channel_init=0;
static int n_samples_max=0;
// printf("no of samples:%d,",n_samples);
// printf("no of taps:%d,",(int)desc->nb_taps);
if (freq_channel_init == 0) {
init_freq_channel(desc,nb_rb,n_samples);
// we are initializing the lut for the largets possible n_samples=12*nb_rb+1
// if called with n_samples<12*nb_rb+1, we decimate the lut
n_samples_max=12*nb_rb+1;
init_freq_channel(desc,nb_rb,n_samples_max);
freq_channel_init=1;
}
d=n_samples_max/n_samples;
start_meas(&desc->interp_freq);
for (f=-n_samples/2;f<n_samples/2;f++) {
clut = cos_lut[n_samples/2+f];
slut = sin_lut[n_samples/2+f];
for (f=-n_samples_max/2,f2=-n_samples/2;f<n_samples_max/2;f+=d,f2++) {
clut = cos_lut[n_samples_max/2+f];
slut = sin_lut[n_samples_max/2+f];
for (aarx=0;aarx<desc->nb_rx;aarx++) {
for (aatx=0;aatx<desc->nb_tx;aatx++) {
desc->chF[aarx+(aatx*desc->nb_rx)][n_samples/2+f].x=0.0;
desc->chF[aarx+(aatx*desc->nb_rx)][n_samples/2+f].y=0.0;
desc->chF[aarx+(aatx*desc->nb_rx)][n_samples/2+f2].x=0.0;
desc->chF[aarx+(aatx*desc->nb_rx)][n_samples/2+f2].y=0.0;
for (l=0;l<(int)desc->nb_taps;l++) {
desc->chF[aarx+(aatx*desc->nb_rx)][n_samples/2+f].x+=(desc->a[l][aarx+(aatx*desc->nb_rx)].x*clut[l]+
desc->chF[aarx+(aatx*desc->nb_rx)][n_samples/2+f2].x+=(desc->a[l][aarx+(aatx*desc->nb_rx)].x*clut[l]+
desc->a[l][aarx+(aatx*desc->nb_rx)].y*slut[l]);
desc->chF[aarx+(aatx*desc->nb_rx)][n_samples/2+f].y+=(-desc->a[l][aarx+(aatx*desc->nb_rx)].x*slut[l]+
desc->chF[aarx+(aatx*desc->nb_rx)][n_samples/2+f2].y+=(-desc->a[l][aarx+(aatx*desc->nb_rx)].x*slut[l]+
desc->a[l][aarx+(aatx*desc->nb_rx)].y*clut[l]);
}
}