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first working version with oaisim. This is prior to MAC interface reworking

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This commit is contained in:
Raymond Knopp
2017-06-04 02:44:26 -07:00
parent 63a18b8193
commit 413df163d8
37 changed files with 983 additions and 839 deletions
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targets/SIMU/USER/channel_sim.c
+62 -30
View File
@@ -60,7 +60,7 @@
#include "oaisim.h"
#define RF
//#define DEBUG_SIM
#define DEBUG_SIM
int number_rb_ul;
int first_rbUL ;
@@ -77,10 +77,15 @@ int UE_output_mask[NUMBER_OF_RU_MAX];
pthread_mutex_t RU_output_mutex[NUMBER_OF_UE_MAX];
pthread_mutex_t UE_output_mutex[NUMBER_OF_RU_MAX];
double ru_amp[NUMBER_OF_RU_MAX];
void do_DL_sig(channel_desc_t *RU2UE[NUMBER_OF_RU_MAX][NUMBER_OF_UE_MAX][MAX_NUM_CCs],
node_desc_t *enb_data[NUMBER_OF_RU_MAX],
node_desc_t *ue_data[NUMBER_OF_UE_MAX],
uint16_t subframe,uint8_t abstraction_flag,LTE_DL_FRAME_PARMS *ue_frame_parms,
uint16_t subframe,
uint16_t offset,
uint16_t length,
uint8_t abstraction_flag,LTE_DL_FRAME_PARMS *ue_frame_parms,
uint8_t UE_id,
int CC_id)
{
@@ -237,22 +242,26 @@ void do_DL_sig(channel_desc_t *RU2UE[NUMBER_OF_RU_MAX][NUMBER_OF_UE_MAX][MAX_NUM
txdata = RC.ru[ru_id]->common.txdata;
frame_parms = &RC.ru[ru_id]->frame_parms;
sf_offset = subframe*frame_parms->samples_per_tti;
sf_offset = (subframe*frame_parms->samples_per_tti) + offset;
LOG_D(EMU,"TXPATH: RU %d : DL_sig reading TX for subframe %d (sf_offset %d, length %d) from %p\n",ru_id,subframe,sf_offset,length,txdata[0]+sf_offset);
int length_meas = frame_parms->ofdm_symbol_size;
tx_pwr = dac_fixed_gain(s_re,
s_im,
txdata,
sf_offset,
nb_antennas_tx,
frame_parms->samples_per_tti,
length,
sf_offset,
frame_parms->ofdm_symbol_size,
length_meas,
14,
frame_parms->pdsch_config_common.referenceSignalPower, // dBm/RE
0,
&ru_amp[ru_id],
frame_parms->N_RB_DL*12);
#ifdef DEBUG_SIM
LOG_D(PHY,"[SIM][DL] subframe %d: txp (time) %d dB\n",
subframe,dB_fixed(signal_energy(&txdata[0][sf_offset],frame_parms->samples_per_tti)));
subframe,dB_fixed(signal_energy(&txdata[0][sf_offset],length_meas)));
LOG_D(OCM,"[SIM][DL] RU %d (CCid %d): tx_pwr %.1f dBm/RE (target %d dBm/RE), for subframe %d\n",
ru_id,CC_id,
@@ -261,9 +270,13 @@ void do_DL_sig(channel_desc_t *RU2UE[NUMBER_OF_RU_MAX][NUMBER_OF_UE_MAX][MAX_NUM
subframe);
#endif
tx_pwr = signal_energy_fp(s_re,s_im,nb_antennas_tx,
length<length_meas?length:length_meas,
0)/(12.0*frame_parms->N_RB_DL);
//RU2UE[eNB_id][UE_id]->path_loss_dB = 0;
multipath_channel(RU2UE[ru_id][UE_id][CC_id],s_re,s_im,r_re0,r_im0,
frame_parms->samples_per_tti,hold_channel);
length,hold_channel);
#ifdef DEBUG_SIM
rx_pwr = signal_energy_fp2(RU2UE[ru_id][UE_id][CC_id]->ch[0],
RU2UE[ru_id][UE_id][CC_id]->channel_length)*RU2UE[ru_id][UE_id][CC_id]->channel_length;
@@ -278,7 +291,7 @@ void do_DL_sig(channel_desc_t *RU2UE[NUMBER_OF_RU_MAX][NUMBER_OF_UE_MAX][MAX_NUM
#endif
LOG_D(OCM,"[SIM][DL] Channel eNB %d => UE %d (CCid %d): tx_power %.1f dBm/RE, path_loss %1.f dB\n",
LOG_D(OCM,"[SIM][DL] Channel RU %d => UE %d (CCid %d): tx_power %.1f dBm/RE, path_loss %1.f dB\n",
ru_id,UE_id,CC_id,
(double)frame_parms->pdsch_config_common.referenceSignalPower,
// enb_data[eNB_id]->tx_power_dBm,
@@ -286,11 +299,15 @@ void do_DL_sig(channel_desc_t *RU2UE[NUMBER_OF_RU_MAX][NUMBER_OF_UE_MAX][MAX_NUM
#ifdef DEBUG_SIM
rx_pwr = signal_energy_fp(r_re0,r_im0,nb_antennas_rx,
frame_parms->ofdm_symbol_size,
length<length_meas?length:length_meas,
0)/(12.0*frame_parms->N_RB_DL);
LOG_D(OCM,"[SIM][DL] UE %d : rx_pwr %f dBm/RE (%f dBm RSSI)for subframe %d\n",UE_id,
10*log10(rx_pwr),
10*log10(rx_pwr*(double)frame_parms->N_RB_DL*12),subframe);
LOG_D(OCM,"[SIM][DL] UE %d : rx_pwr %f dBm/RE (%f dBm RSSI,tx %f dB)for subframe %d (length %d)\n",UE_id,
10*log10(rx_pwr),
10*log10(rx_pwr*(double)frame_parms->N_RB_DL*12),
10*log10(tx_pwr),subframe,
length<length_meas?length:length_meas);
LOG_D(OCM,"[SIM][DL] UE %d : rx_pwr (noise) -132 dBm/RE (N0fs = %.1f dBm, N0B = %.1f dBm) for subframe %d\n",
UE_id,
10*log10(RU2UE[ru_id][UE_id][CC_id]->sampling_rate*1e6)-174,
@@ -311,16 +328,16 @@ void do_DL_sig(channel_desc_t *RU2UE[NUMBER_OF_RU_MAX][NUMBER_OF_UE_MAX][MAX_NUM
rf_rx_simple(r_re0,
r_im0,
nb_antennas_rx,
frame_parms->samples_per_tti,
length,
1e3/RU2UE[ru_id][UE_id][CC_id]->sampling_rate, // sampling time (ns)
(double)PHY_vars_UE_g[UE_id][CC_id]->rx_total_gain_dB - 66.227); // rx_gain (dB) (66.227 = 20*log10(pow2(11)) = gain from the adc that will be applied later)
#ifdef DEBUG_SIM
rx_pwr = signal_energy_fp(r_re0,r_im0,
nb_antennas_rx,
frame_parms->ofdm_symbol_size,
length<length_meas?length:length_meas,
0)/(12.0*frame_parms->N_RB_DL);
LOG_D(OCM,"[SIM][DL] UE %d : ADC in (eNB %d) %f dBm/RE for subframe %d\n",
LOG_D(OCM,"[SIM][DL] UE %d : ADC in (RU %d) %f dBm/RE for subframe %d\n",
UE_id,ru_id,
10*log10(rx_pwr),subframe);
#endif
@@ -341,12 +358,12 @@ void do_DL_sig(channel_desc_t *RU2UE[NUMBER_OF_RU_MAX][NUMBER_OF_UE_MAX][MAX_NUM
double *r_im_p[2] = {r_im_DL[ru_id][0],r_im_DL[ru_id][1]};
#ifdef DEBUG_SIM
rx_pwr = signal_energy_fp(r_re_p,r_im_p,nb_antennas_rx,frame_parms->ofdm_symbol_size,0)/(12.0*frame_parms->N_RB_DL);
LOG_D(OCM,"[SIM][DL] UE %d : ADC in %f dBm for subframe %d\n",UE_id,10*log10(rx_pwr),subframe);
rx_pwr = signal_energy_fp(r_re_p,r_im_p,nb_antennas_rx,length<length_meas?length:length_meas,0)/(12.0*frame_parms->N_RB_DL);
LOG_D(OCM,"[SIM][DL] UE %d : ADC in %f dBm/RE for subframe %d\n",UE_id,10*log10(rx_pwr),subframe);
#endif
rxdata = PHY_vars_UE_g[UE_id][CC_id]->common_vars.rxdata;
sf_offset = subframe*frame_parms->samples_per_tti;
sf_offset = (subframe*frame_parms->samples_per_tti)+offset;
adc(r_re_p,
@@ -355,12 +372,13 @@ void do_DL_sig(channel_desc_t *RU2UE[NUMBER_OF_RU_MAX][NUMBER_OF_UE_MAX][MAX_NUM
sf_offset,
rxdata,
nb_antennas_rx,
frame_parms->samples_per_tti,
length,
12);
#ifdef DEBUG_SIM
rx_pwr2 = signal_energy(rxdata[0]+sf_offset,frame_parms->ofdm_symbol_size)/(12.0*frame_parms->N_RB_DL);
LOG_D(OCM,"[SIM][DL] UE %d : rx_pwr (ADC out) %f dB/RE (%d) for subframe %d, writing to %p\n",UE_id, 10*log10((double)rx_pwr2),rx_pwr2,subframe,rxdata);
rx_pwr2 = signal_energy(rxdata[0]+sf_offset,length<length_meas?length:length_meas)/(12.0*frame_parms->N_RB_DL);
LOG_D(OCM,"[SIM][DL] UE %d : rx_pwr (ADC out) %f dB/RE (%d) for subframe %d, writing to %p, length %d\n",UE_id, 10*log10((double)rx_pwr2),rx_pwr2,subframe,rxdata,length<length_meas?length:length_meas);
LOG_D(OCM,"[SIM][DL] UE %d : rx_pwr (ADC out) %f dB for subframe %d\n",UE_id,10*log10((double)rx_pwr2*12*frame_parms->N_RB_DL) ,subframe);
#else
UNUSED_VARIABLE(rx_pwr2);
UNUSED_VARIABLE(tx_pwr);
@@ -477,7 +495,7 @@ void do_UL_sig(channel_desc_t *UE2RU[NUMBER_OF_UE_MAX][NUMBER_OF_RU_MAX][MAX_NUM
// Compute RX signal for eNB = eNB_id
for (UE_id=0; UE_id<NB_UE_INST; UE_id++) {
txdata = RC.ru[ru_id]->common.txdata;
txdata = PHY_vars_UE_g[UE_id][CC_id]->common_vars.txdata;
AssertFatal(txdata != NULL,"txdata is null\n");
sf_offset = subframe*frame_parms->samples_per_tti;
if (((double)PHY_vars_UE_g[UE_id][CC_id]->tx_power_dBm[subframe] +
@@ -499,10 +517,12 @@ void do_UL_sig(channel_desc_t *UE2RU[NUMBER_OF_UE_MAX][NUMBER_OF_RU_MAX][MAX_NUM
frame_parms->ofdm_symbol_size,
14,
(double)PHY_vars_UE_g[UE_id][CC_id]->tx_power_dBm[subframe]-10*log10((double)PHY_vars_UE_g[UE_id][CC_id]->tx_total_RE[subframe]),
1,
NULL,
PHY_vars_UE_g[UE_id][CC_id]->tx_total_RE[subframe]); // This make the previous argument the total power
LOG_D(OCM,"[SIM][UL] UE %d tx_pwr %f dBm (target %d dBm, num_RE %d) for subframe %d (sf_offset %d)\n",
UE_id,
10*log10(tx_pwr),
10*log10(tx_pwr*PHY_vars_UE_g[UE_id][CC_id]->tx_total_RE[subframe]),
PHY_vars_UE_g[UE_id][CC_id]->tx_power_dBm[subframe],
PHY_vars_UE_g[UE_id][CC_id]->tx_total_RE[subframe],
subframe,sf_offset);
@@ -520,10 +540,17 @@ void do_UL_sig(channel_desc_t *UE2RU[NUMBER_OF_UE_MAX][NUMBER_OF_RU_MAX][MAX_NUM
UE2RU[UE_id][ru_id][CC_id]->path_loss_dB);
rx_pwr = signal_energy_fp(r_re0,r_im0,nb_antennas_rx,frame_parms->samples_per_tti,0);
LOG_D(OCM,"[SIM][UL] eNB %d : rx_pwr %f dBm (%f) for subframe %d, sptti %d\n",
ru_id,10*log10(rx_pwr),rx_pwr,subframe,frame_parms->samples_per_tti);
LOG_D(OCM,"[SIM][UL] RU %d (%d/%d rx antennas) : rx_pwr %f dBm (tx_pwr - PL %f) for subframe %d, sptti %d\n",
ru_id,nb_antennas_rx,UE2RU[UE_id][ru_id][CC_id]->nb_rx,10*log10(rx_pwr),10*log10(tx_pwr*PHY_vars_UE_g[UE_id][CC_id]->tx_total_RE[subframe])+UE2RU[UE_id][ru_id][CC_id]->path_loss_dB,subframe,frame_parms->samples_per_tti);
/*
if (abs(10*log10(rx_pwr)-10*log10(tx_pwr*PHY_vars_UE_g[UE_id][CC_id]->tx_total_RE[subframe])-UE2RU[UE_id][ru_id][CC_id]->path_loss_dB)>3) {
write_output("txsig_re.m","s_re",s_re[0],frame_parms->samples_per_tti,1,7);
write_output("txsig_im.m","s_im",s_im[0],frame_parms->samples_per_tti,1,7);
write_output("rxsig_re.m","r_re",r_re0[0],frame_parms->samples_per_tti,1,7);
write_output("rxsig_im.m","r_im",r_im0[0],frame_parms->samples_per_tti,1,7);
exit(-1);
}*/
if (UE2RU[UE_id][ru_id][CC_id]->first_run == 1)
UE2RU[UE_id][ru_id][CC_id]->first_run = 0;
@@ -542,6 +569,10 @@ void do_UL_sig(channel_desc_t *UE2RU[NUMBER_OF_UE_MAX][NUMBER_OF_RU_MAX][MAX_NUM
double *r_re_p[2] = {r_re_UL[ru_id][0],r_re_UL[ru_id][1]};
double *r_im_p[2] = {r_im_UL[ru_id][0],r_im_UL[ru_id][1]};
rx_pwr = signal_energy_fp(r_re_p,r_im_p,nb_antennas_rx,frame_parms->samples_per_tti,0);
LOG_D(OCM,"[SIM][UL] RU %d (%d/%d rx antennas) : rx_pwr %f dBm (before RF) for subframe %d, gain %f\n",
ru_id,nb_antennas_rx,nb_antennas_rx,10*log10(rx_pwr),subframe,
(double)RC.ru[ru_id]->max_rxgain-(double)RC.ru[ru_id]->att_rx - 66.227);
rf_rx_simple(r_re_p,
r_im_p,
nb_antennas_rx,
@@ -550,8 +581,9 @@ void do_UL_sig(channel_desc_t *UE2RU[NUMBER_OF_UE_MAX][NUMBER_OF_RU_MAX][MAX_NUM
(double)RC.ru[ru_id]->max_rxgain-(double)RC.ru[ru_id]->att_rx - 66.227); // rx_gain (dB) (66.227 = 20*log10(pow2(11)) = gain from the adc that will be applied later)
#ifdef DEBUG_SIM
rx_pwr = signal_energy_fp(r_re_p,r_im_p,nb_antennas_rx,frame_parms->samples_per_tti,0)*(double)frame_parms->ofdm_symbol_size/(12.0*frame_parms->N_RB_DL);
LOG_D(OCM,"[SIM][UL] rx_pwr (ADC in) %f dB for subframe %d\n",10*log10(rx_pwr),subframe);
rx_pwr = signal_energy_fp(r_re_p,r_im_p,nb_antennas_rx,frame_parms->samples_per_tti,0);//*(double)frame_parms->ofdm_symbol_size/(12.0*frame_parms->N_RB_DL;
LOG_D(OCM,"[SIM][UL] rx_pwr (ADC in) %f dB for subframe %d (rx_gain %f)\n",10*log10(rx_pwr),subframe,
(double)RC.ru[ru_id]->max_rxgain-(double)RC.ru[ru_id]->att_rx);
#endif
rxdata = RC.ru[ru_id]->common.rxdata;
@@ -569,7 +601,7 @@ void do_UL_sig(channel_desc_t *UE2RU[NUMBER_OF_UE_MAX][NUMBER_OF_RU_MAX][MAX_NUM
#ifdef DEBUG_SIM
rx_pwr2 = signal_energy(rxdata[0]+sf_offset,frame_parms->samples_per_tti)*(double)frame_parms->ofdm_symbol_size/(12.0*frame_parms->N_RB_DL);
LOG_D(OCM,"[SIM][UL] RU %d rx_pwr (ADC out) %f dB (%d) for subframe %d (offset %d)\n",ru_id,10*log10((double)rx_pwr2),rx_pwr2,subframe,sf_offset);
LOG_D(OCM,"[SIM][UL] RU %d rx_pwr (ADC out) %f dB (%d) for subframe %d (offset %d) = %p\n",ru_id,10*log10((double)rx_pwr2),rx_pwr2,subframe,sf_offset,rxdata[0]+sf_offset);
#else
UNUSED_VARIABLE(tx_pwr);
UNUSED_VARIABLE(rx_pwr);
targets/SIMU/USER/oaisim.c
+9 -5
View File
@@ -705,7 +705,6 @@ l2l1_task (void *args_p)
for (sf = 0; sf < 10; sf++) {
LOG_D(EMU,"************************* Subframe %d\n",sf);
start_meas (&oaisim_stats_f);
wait_for_slot_isr ();
@@ -732,12 +731,13 @@ l2l1_task (void *args_p)
CC_id=0;
int all_done=0;
while (all_done==0) {
pthread_mutex_lock(&subframe_mutex);
int subframe_ru_mask_local = subframe_ru_mask;
int subframe_UE_mask_local = subframe_UE_mask;
pthread_mutex_unlock(&subframe_mutex);
LOG_D(EMU,"Frame %d, Subframe %d: Checking masks %x,%x\n",frame,sf,subframe_ru_mask,subframe_UE_mask);
LOG_D(EMU,"Frame %d, Subframe %d: Checking masks %x,%x\n",frame,sf,subframe_ru_mask_local,subframe_UE_mask_local);
if ((subframe_ru_mask_local == ((1<<NB_RU)-1)) &&
(subframe_UE_mask_local == ((1<<NB_UE_INST)-1)))
all_done=1;
@@ -745,6 +745,7 @@ l2l1_task (void *args_p)
usleep(1500);
}
//clear subframe masks for next round
pthread_mutex_lock(&subframe_mutex);
subframe_ru_mask=0;
@@ -761,9 +762,11 @@ l2l1_task (void *args_p)
*/
for (ru_id=0;ru_id<NB_RU;ru_id++) {
current_ru_rx_timestamp[ru_id][CC_id] += RC.ru[ru_id]->frame_parms.samples_per_tti;
LOG_D(EMU,"RU %d/%d: TS %llu\n",ru_id,CC_id,current_ru_rx_timestamp[ru_id][CC_id]);
}
for (UE_inst = 0; UE_inst<NB_UE_INST;UE_inst++) {
current_UE_rx_timestamp[UE_inst][CC_id] += PHY_vars_UE_g[UE_inst][CC_id]->frame_parms.samples_per_tti;
LOG_D(EMU,"UE %d/%d: TS %llu\n",UE_id,CC_id,current_UE_rx_timestamp[UE_inst][CC_id]);
}
@@ -817,14 +820,14 @@ l2l1_task (void *args_p)
if(eNB_avg_thr)
fprintf(eNB_avg_thr,"%d %d\n",RC.eNB[eNB_inst][0]->proc.proc_rxtx[sf&1].frame_tx,
(RC.eNB[eNB_inst][0]->total_system_throughput)/((RC.eNB[eNB_inst][0]->proc.proc_rxtx[sf&1].frame_tx+1)*10));
/*
if (eNB_stats[eNB_inst]) {
len = dump_eNB_stats(RC.eNB[eNB_inst][0], stats_buffer, 0);
rewind (eNB_stats[eNB_inst]);
fwrite (stats_buffer, 1, len, eNB_stats[eNB_inst]);
fflush(eNB_stats[eNB_inst]);
}
*/
#ifdef OPENAIR2
if (eNB_l2_stats) {
@@ -1214,6 +1217,7 @@ void wait_RUs() {
// copy frame parameters from RU to UEs
for (i=0;i<NB_UE_INST;i++) {
PHY_vars_UE_g[i][0]->frame_parms.N_RB_DL = RC.ru[0]->frame_parms.N_RB_DL;
PHY_vars_UE_g[i][0]->frame_parms.N_RB_UL = RC.ru[0]->frame_parms.N_RB_UL;
PHY_vars_UE_g[i][0]->frame_parms.nb_antennas_tx = 1;
PHY_vars_UE_g[i][0]->frame_parms.nb_antennas_rx = 1;
// set initially to 2, it will be revised after initial synchronization
@@ -1229,7 +1233,7 @@ void wait_RUs() {
PHY_vars_UE_g[i][0]->frame_parms.ul_CarrierFreq,
PHY_vars_UE_g[i][0]->frame_parms.eutra_band);
current_UE_rx_timestamp[i][0] = RC.ru[0]->frame_parms.samples_per_tti;
current_UE_rx_timestamp[i][0] = RC.ru[0]->frame_parms.samples_per_tti + RC.ru[0]->frame_parms.ofdm_symbol_size + RC.ru[0]->frame_parms.nb_prefix_samples0;
}
targets/SIMU/USER/oaisim.h
+5 -1
View File
@@ -48,7 +48,11 @@ void do_UL_sig(channel_desc_t *UE2RU[NUMBER_OF_UE_MAX][NUMBER_OF_RU_MAX][MAX_NUM
uint32_t frame,int eNB_id,uint8_t CC_id);
void do_DL_sig(channel_desc_t *RU2UE[NUMBER_OF_RU_MAX][NUMBER_OF_UE_MAX][MAX_NUM_CCs],
node_desc_t *enb_data[NUMBER_OF_RU_MAX],node_desc_t *ue_data[NUMBER_OF_UE_MAX],uint16_t subframe,uint8_t abstraction_flag,LTE_DL_FRAME_PARMS *frame_parms,uint8_t UE_id,int CC_id);
node_desc_t *enb_data[NUMBER_OF_RU_MAX],node_desc_t *ue_data[NUMBER_OF_UE_MAX],
uint16_t subframe,
uint16_t offset,
uint16_t length,
uint8_t abstraction_flag,LTE_DL_FRAME_PARMS *frame_parms,uint8_t UE_id,int CC_id);
void init_ue(node_desc_t *ue_data, UE_Antenna ue_ant);//Abstraction changes
void init_enb(node_desc_t *enb_data, eNB_Antenna enb_ant);//Abstraction changes
targets/SIMU/USER/oaisim_functions.c
+51 -22
View File
@@ -1064,10 +1064,6 @@ int ru_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **
usleep(500);
}
// tell top-level we are busy
pthread_mutex_lock(&subframe_mutex);
subframe_ru_mask|=(1<<ru_id);
pthread_mutex_unlock(&subframe_mutex);
subframe = (last_ru_rx_timestamp[ru_id][CC_id]/RC.ru[ru_id]->frame_parms.samples_per_tti)%10;
LOG_D(EMU,"RU_trx_read generating UL subframe %d (Ts %llu, current TS %llu)\n",
@@ -1097,13 +1093,13 @@ int UE_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **
int UE_id = device->Mod_id;
int CC_id = device->CC_id;
int subframe;
int subframe,new_subframe;
int sample_count=0;
int read_size;
*ptimestamp = last_UE_rx_timestamp[UE_id][CC_id];
LOG_D(EMU,"UE_trx_read nsamps %d TS(%llu,%llu) antenna %d\n",nsamps,
LOG_D(EMU,"[TXPATH]UE_trx_read nsamps %d TS %llu (%llu) antenna %d\n",nsamps,
(unsigned long long)current_UE_rx_timestamp[UE_id][CC_id],
(unsigned long long)last_UE_rx_timestamp[UE_id][CC_id],
cc);
@@ -1116,29 +1112,23 @@ int UE_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **
while (sample_count<nsamps) {
while (current_UE_rx_timestamp[UE_id][CC_id] <
(last_UE_rx_timestamp[UE_id][CC_id]+read_size)) {
LOG_D(EMU,"UE_trx_read : current TS %d, last TS %d, sleeping\n",current_UE_rx_timestamp[UE_id][CC_id],last_UE_rx_timestamp[UE_id][CC_id]);
LOG_D(EMU,"[TXPATH]UE_trx_read : current TS %d, last TS %d, sleeping\n",current_UE_rx_timestamp[UE_id][CC_id],last_UE_rx_timestamp[UE_id][CC_id]);
usleep(500);
}
// LOG_D(EMU,"UE_trx_read : current TS %d, last TS %d, sleeping\n",current_UE_rx_timestamp[UE_id][CC_id],last_UE_rx_timestamp[UE_id][CC_id]);
// tell top-level we are busy
pthread_mutex_lock(&subframe_mutex);
subframe_UE_mask|=(1<<UE_id);
pthread_mutex_unlock(&subframe_mutex);
// otherwise we have one subframe here so generate the received signal
// if we cross a subframe-boundary
subframe = (last_UE_rx_timestamp[UE_id][CC_id]/PHY_vars_UE_g[UE_id][CC_id]->frame_parms.samples_per_tti)%10;
if ((last_UE_rx_timestamp[UE_id][CC_id]%PHY_vars_UE_g[UE_id][CC_id]->frame_parms.samples_per_tti) > 0)
subframe++;
new_subframe = ((last_UE_rx_timestamp[UE_id][CC_id]+read_size)/PHY_vars_UE_g[UE_id][CC_id]->frame_parms.samples_per_tti)%10;
if (new_subframe!=subframe) {
// tell top-level we are busy
pthread_mutex_lock(&subframe_mutex);
subframe_UE_mask|=(1<<UE_id);
LOG_D(EMU,"Setting UE_id %d mask to busy (%d)\n",UE_id,subframe_UE_mask);
pthread_mutex_unlock(&subframe_mutex);
last_UE_rx_timestamp[UE_id][CC_id] += read_size;
sample_count += read_size;
if (subframe > 9)
return(nsamps);
}
LOG_D(PHY,"UE_trx_read generating DL subframe %d (Ts %llu, current TS %llu)\n",
subframe,(unsigned long long)*ptimestamp,
@@ -1147,11 +1137,24 @@ int UE_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **
enb_data,
ue_data,
subframe,
last_UE_rx_timestamp[UE_id][CC_id]%PHY_vars_UE_g[UE_id][CC_id]->frame_parms.samples_per_tti,
nsamps,
0, //abstraction_flag,
&PHY_vars_UE_g[UE_id][CC_id]->frame_parms,
UE_id,
CC_id);
LOG_D(EMU,"[TXPATH]UE_trx_read @ TS %llu (%llu)=> frame %d, subframe %d\n",
(unsigned long long)current_UE_rx_timestamp[UE_id][CC_id],
(unsigned long long)last_UE_rx_timestamp[UE_id][CC_id],
((unsigned long long)last_UE_rx_timestamp[UE_id][CC_id]/(PHY_vars_UE_g[UE_id][CC_id]->frame_parms.samples_per_tti*10))&1023,
subframe);
last_UE_rx_timestamp[UE_id][CC_id] += read_size;
sample_count += read_size;
}
@@ -1159,8 +1162,34 @@ int UE_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **
return(nsamps);
}
extern double ru_amp[NUMBER_OF_RU_MAX];
int ru_trx_write(openair0_device *device,openair0_timestamp timestamp, void **buff, int nsamps, int cc, int flags) {
int ru_id = device->Mod_id;
LTE_DL_FRAME_PARMS *frame_parms = &RC.ru[ru_id]->frame_parms;
pthread_mutex_lock(&subframe_mutex);
LOG_D(EMU,"[TXPATH] ru_trx_write: RU %d mask %d\n",ru_id,subframe_ru_mask);
pthread_mutex_unlock(&subframe_mutex);
// compute amplitude of TX signal from first symbol in subframe
// note: assumes that the packet is an entire subframe
ru_amp[ru_id] = 0;
for (int aa=0; aa<RC.ru[ru_id]->nb_tx; aa++) {
ru_amp[ru_id] += (double)signal_energy((int32_t*)buff[aa],frame_parms->ofdm_symbol_size)/(12*frame_parms->N_RB_DL);
}
ru_amp[ru_id] = sqrt(ru_amp[ru_id]);
LOG_D(EMU,"Setting amp for RU %d to %f (%d)\n",ru_id,ru_amp[ru_id], dB_fixed((double)signal_energy((int32_t*)buff[0],frame_parms->ofdm_symbol_size)));
// tell top-level we are done
pthread_mutex_lock(&subframe_mutex);
subframe_ru_mask|=(1<<ru_id);
LOG_D(EMU,"Setting RU %d to busy\n",ru_id);
pthread_mutex_unlock(&subframe_mutex);
return(nsamps);
}