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debugging of new directory structure, file renaming, and eNB/UE splitting. dlsim/ulsim functional.

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This commit is contained in:
Raymond Knopp
2018-04-09 15:32:49 -07:00
parent ef719e7945
commit 8b1416b862
165 changed files with 3801 additions and 16014 deletions
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openair1/PHY/LTE_ESTIMATION/lte_adjust_sync.c
+3 -125
View File
@@ -20,10 +20,11 @@
*/
#include "PHY/types.h"
#include "PHY/defs.h"
#include "PHY/extern.h"
#include "PHY/defs_UE.h"
#include "PHY/phy_extern_ue.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "lte_estimation_defs.h"
#define DEBUG_PHY
@@ -136,126 +137,3 @@ void lte_adjust_synch(LTE_DL_FRAME_PARMS *frame_parms,
}
int lte_est_timing_advance(LTE_DL_FRAME_PARMS *frame_parms,
LTE_eNB_SRS *lte_eNB_srs,
unsigned int *eNB_id,
unsigned char clear,
unsigned char number_of_cards,
short coef)
{
static int max_pos_fil2 = 0;
int temp, i, aa, max_pos = 0,ind;
int max_val=0;
short Re,Im,ncoef;
#ifdef DEBUG_PHY
char fname[100],vname[100];
#endif
ncoef = 32768 - coef;
for (ind=0; ind<number_of_cards; ind++) {
if (ind==0)
max_val=0;
for (aa=0; aa<frame_parms->nb_antennas_rx; aa++) {
// do ifft of channel estimate
switch(frame_parms->N_RB_DL) {
case 6:
dft128((int16_t*) &lte_eNB_srs->srs_ch_estimates[aa][0],
(int16_t*) lte_eNB_srs->srs_ch_estimates_time[aa],
1);
break;
case 25:
dft512((int16_t*) &lte_eNB_srs->srs_ch_estimates[aa][0],
(int16_t*) lte_eNB_srs->srs_ch_estimates_time[aa],
1);
break;
case 50:
dft1024((int16_t*) &lte_eNB_srs->srs_ch_estimates[aa][0],
(int16_t*) lte_eNB_srs->srs_ch_estimates_time[aa],
1);
break;
case 100:
dft2048((int16_t*) &lte_eNB_srs->srs_ch_estimates[aa][0],
(int16_t*) lte_eNB_srs->srs_ch_estimates_time[aa],
1);
break;
}
#ifdef DEBUG_PHY
sprintf(fname,"srs_ch_estimates_time_%d%d.m",ind,aa);
sprintf(vname,"srs_time_%d%d",ind,aa);
write_output(fname,vname,lte_eNB_srs->srs_ch_estimates_time[aa],frame_parms->ofdm_symbol_size*2,2,1);
#endif
}
// we only use channel estimates from tx antenna 0 here
// remember we fixed the SRS to use only every second subcarriers
for (i = 0; i < frame_parms->ofdm_symbol_size/2; i++) {
temp = 0;
for (aa=0; aa<frame_parms->nb_antennas_rx; aa++) {
Re = ((int16_t*)lte_eNB_srs->srs_ch_estimates_time[aa])[(i<<1)];
Im = ((int16_t*)lte_eNB_srs->srs_ch_estimates_time[aa])[1+(i<<1)];
temp += (Re*Re/2) + (Im*Im/2);
}
if (temp > max_val) {
max_pos = i;
max_val = temp;
*eNB_id = ind;
}
}
}
// filter position to reduce jitter
if (clear == 1)
max_pos_fil2 = max_pos;
else
max_pos_fil2 = ((max_pos_fil2 * coef) + (max_pos * ncoef)) >> 15;
return(max_pos_fil2);
}
int lte_est_timing_advance_pusch(PHY_VARS_eNB* eNB,uint8_t UE_id)
{
int temp, i, aa, max_pos=0, max_val=0;
short Re,Im;
LTE_DL_FRAME_PARMS *frame_parms = &eNB->frame_parms;
LTE_eNB_PUSCH *eNB_pusch_vars = eNB->pusch_vars[UE_id];
int32_t **ul_ch_estimates_time= eNB_pusch_vars->drs_ch_estimates_time;
uint8_t cyclic_shift = 0;
int sync_pos = (frame_parms->ofdm_symbol_size-cyclic_shift*frame_parms->ofdm_symbol_size/12)%(frame_parms->ofdm_symbol_size);
AssertFatal(frame_parms->ofdm_symbol_size > 127,"frame_parms->ofdm_symbol_size %d<128\n",frame_parms->ofdm_symbol_size);
AssertFatal(frame_parms->nb_antennas_rx >0 && frame_parms->nb_antennas_rx<3,"frame_parms->nb_antennas_rx %d not in [0,1]\n",
frame_parms->nb_antennas_rx);
for (i = 0; i < frame_parms->ofdm_symbol_size; i++) {
temp = 0;
for (aa=0; aa<frame_parms->nb_antennas_rx; aa++) {
Re = ((int16_t*)ul_ch_estimates_time[aa])[(i<<1)];
Im = ((int16_t*)ul_ch_estimates_time[aa])[1+(i<<1)];
temp += (Re*Re/2) + (Im*Im/2);
}
if (temp > max_val) {
max_pos = i;
max_val = temp;
}
}
if (max_pos>frame_parms->ofdm_symbol_size/2)
max_pos = max_pos-frame_parms->ofdm_symbol_size;
//#ifdef DEBUG_PHY
LOG_D(PHY,"frame %d: max_pos = %d, sync_pos=%d\n",eNB->proc.frame_rx,max_pos,sync_pos);
//#endif //DEBUG_PHY
return max_pos - sync_pos;
}