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- fix init prach struct + fix TO compensation for 20MHz case

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This commit is contained in:
hbilel
2017-07-20 10:09:43 +02:00
parent a64bcb1408
commit 767606f9f2
8 changed files with 88 additions and 42 deletions
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openair1/PHY/LTE_ESTIMATION/lte_adjust_sync.c
+48 -16
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@@ -40,6 +40,8 @@ void lte_adjust_synch(LTE_DL_FRAME_PARMS *frame_parms,
{
static int max_pos_fil = 0;
static int count_max_pos_ok = 0;
static int first_time = 1;
int temp = 0, i, aa, max_val = 0, max_pos = 0;
int diff;
short Re,Im,ncoef;
@@ -76,30 +78,60 @@ void lte_adjust_synch(LTE_DL_FRAME_PARMS *frame_parms,
max_pos_fil = ((max_pos_fil * coef) + (max_pos * ncoef)) >> 15;
// do not filter to have proactive timing adjustment
max_pos_fil = max_pos;
//max_pos_fil = max_pos;
diff = max_pos_fil - (frame_parms->nb_prefix_samples>>3);
if(subframe == 6)
{
diff = max_pos_fil - (frame_parms->nb_prefix_samples>>3);
if ( abs(diff) < SYNCH_HYST )
ue->rx_offset = 0;
else
ue->rx_offset = diff;
if ( abs(diff) < SYNCH_HYST )
ue->rx_offset = 0;
else
ue->rx_offset = diff;
if ( ue->rx_offset < 0 )
ue->rx_offset += FRAME_LENGTH_COMPLEX_SAMPLES;
if(abs(diff)<5)
count_max_pos_ok ++;
else
count_max_pos_ok = 0;
if ( ue->rx_offset >= FRAME_LENGTH_COMPLEX_SAMPLES )
ue->rx_offset -= FRAME_LENGTH_COMPLEX_SAMPLES;
if(count_max_pos_ok > 10 && first_time == 1)
{
first_time = 0;
ue->time_sync_cell = 1;
if (ue->mac_enabled==1) {
LOG_I(PHY,"[UE%d] Sending synch status to higher layers\n",ue->Mod_id);
//mac_resynch();
mac_xface->dl_phy_sync_success(ue->Mod_id,ue->proc.proc_rxtx[0].frame_rx,0,1);//ue->common_vars.eNb_id);
ue->UE_mode[0] = PRACH;
}
else {
ue->UE_mode[0] = PUSCH;
}
}
if ( ue->rx_offset < 0 )
ue->rx_offset += FRAME_LENGTH_COMPLEX_SAMPLES;
if ( ue->rx_offset >= FRAME_LENGTH_COMPLEX_SAMPLES )
ue->rx_offset -= FRAME_LENGTH_COMPLEX_SAMPLES;
#ifdef DEBUG_PHY
LOG_D(PHY,"AbsSubframe %d.%d: rx_offset (after) = %d : max_pos = %d,max_pos_fil = %d (peak %d) target_pos %d \n",
ue->proc.proc_rxtx[0].frame_rx,subframe,ue->rx_offset,max_pos,max_pos_fil,temp,(frame_parms->nb_prefix_samples>>3));
#endif //DEBUG_PHY
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_ADJUST_SYNCH, VCD_FUNCTION_OUT);
#ifdef DEBUG_PHY
LOG_D(PHY,"AbsSubframe %d.%d: diff =%i rx_offset (final) = %i : clear %d,max_pos = %d,max_pos_fil = %d (peak %d) max_val %d target_pos %d \n",
ue->proc.proc_rxtx[subframe%RX_NB_TH].frame_rx,
subframe,
diff,
ue->rx_offset,
clear,
max_pos,
max_pos_fil,
temp,max_val,
(frame_parms->nb_prefix_samples>>3));
#endif //DEBUG_PHY
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_ADJUST_SYNCH, VCD_FUNCTION_OUT);
}
}