Commit d1bed397 authored by Rohit Gupta's avatar Rohit Gupta

Merge branch 'enhancement-57-UHD-interfacing' into develop

parents 9eeff721 6d87c8ba
......@@ -52,7 +52,7 @@ int openair0_device_init(openair0_device *device, openair0_config_t *openair0_cf
openair0_dev_init_exmimo(device, openair0_cfg);
printf("openair0_dev_init_exmimo...\n");
#elif OAI_USRP
device->type=USRP_IF;
device->type=USRP_B200_IF;
openair0_dev_init_usrp(device, openair0_cfg);
printf("openair0_dev_init_usrp ...\n");
#elif OAI_BLADERF
......
......@@ -84,10 +84,10 @@ typedef struct {
double sample_rate;
//! number of samples per RX/TX packet (USRP + Ethernet)
int samples_per_packet;
// delay in sending samples (write) due to hardware access, softmodem processing and fronthaul delay if exist
int tx_delay;
//! adjust the position of the samples after delay when sending
unsigned int tx_forward_nsamps;
//! delay in sending samples (write) due to hardware access, softmodem processing and fronthaul delay if exist
int tx_scheduling_advance;
//! offset in samples between TX and RX paths
int tx_sample_advance;
//! number of RX channels (=RX antennas)
int rx_num_channels;
//! number of TX channels (=TX antennas)
......@@ -98,6 +98,10 @@ typedef struct {
//! \brief Center frequency in Hz for TX.
//! index: [0..rx_num_channels[ !!! see lte-ue.c:427 FIXME iterates over rx_num_channels
double tx_freq[4];
//! \brief Pointer to Calibration table for RX gains
rx_gain_calib_table_t *rx_gain_calib_table;
//! mode for rxgain (ExpressMIMO2)
rx_gain_t rxg_mode[4];
//! \brief Gain for RX in dB.
......@@ -147,8 +151,10 @@ typedef enum {
ETH_IF,
/*!\brief device is ExpressMIMO */
EXMIMO_IF,
/*!\brief device is USRP*/
USRP_IF,
/*!\brief device is USRP B200/B210*/
USRP_B200_IF,
/*!\brief device is USRP X300/X310*/
USRP_X300_IF,
/*!\brief device is BLADE RF*/
BLADERF_IF,
/*!\brief device is NONE*/
......
......@@ -171,31 +171,45 @@ static int trx_usrp_read(openair0_device *device, openair0_timestamp *ptimestamp
#endif
if (cc>1) {
if (device->type == USRP_B200_IF) {
if (cc>1) {
// receive multiple channels (e.g. RF A and RF B)
std::vector<void *> buff_ptrs;
for (int i=0;i<cc;i++) buff_ptrs.push_back(buff_tmp[i]);
samples_received = s->rx_stream->recv(buff_ptrs, nsamps, s->rx_md);
} else {
std::vector<void *> buff_ptrs;
for (int i=0;i<cc;i++) buff_ptrs.push_back(buff_tmp[i]);
samples_received = s->rx_stream->recv(buff_ptrs, nsamps, s->rx_md);
} else {
// receive a single channel (e.g. from connector RF A)
samples_received = s->rx_stream->recv(buff_tmp[0], nsamps, s->rx_md);
}
samples_received = s->rx_stream->recv(buff_tmp[0], nsamps, s->rx_md);
}
// bring RX data into 12 LSBs for softmodem RX
for (int i=0;i<cc;i++) {
for (int j=0; j<nsamps2; j++) {
for (int i=0;i<cc;i++) {
for (int j=0; j<nsamps2; j++) {
#if defined(__x86_64__) || defined(__i386__)
#ifdef __AVX2__
((__m256i *)buff[i])[j] = _mm256_srai_epi16(buff_tmp[i][j],4);
((__m256i *)buff[i])[j] = _mm256_srai_epi16(buff_tmp[i][j],4);
#else
((__m128i *)buff[i])[j] = _mm_srai_epi16(buff_tmp[i][j],4);
((__m128i *)buff[i])[j] = _mm_srai_epi16(buff_tmp[i][j],4);
#endif
#elif defined(__arm__)
((int16x8_t*)buff[i])[j] = vshrq_n_s16(buff_tmp[i][j],4);
((int16x8_t*)buff[i])[j] = vshrq_n_s16(buff_tmp[i][j],4);
#endif
}
}
} else if (device->type == USRP_X300_IF) {
if (cc>1) {
// receive multiple channels (e.g. RF A and RF B)
std::vector<void *> buff_ptrs;
for (int i=0;i<cc;i++) buff_ptrs.push_back(buff[i]);
samples_received = s->rx_stream->recv(buff_ptrs, nsamps, s->rx_md);
} else {
// receive a single channel (e.g. from connector RF A)
samples_received = s->rx_stream->recv(buff[0], nsamps, s->rx_md);
}
}
if (samples_received < nsamps) {
printf("[recv] received %d samples out of %d\n",samples_received,nsamps);
......@@ -279,7 +293,7 @@ int trx_usrp_set_gains(openair0_device* device,
exit(-1);
}
s->usrp->set_rx_gain(openair0_cfg[0].rx_gain[0]-openair0_cfg[0].rx_gain_offset[0]);
printf("Setting USRP RX gain to %f\n", openair0_cfg[0].rx_gain[0]-openair0_cfg[0].rx_gain_offset[0]);
printf("Setting USRP RX gain to %f (rx_gain %f,gain_range.stop() %f)\n", openair0_cfg[0].rx_gain[0]-openair0_cfg[0].rx_gain_offset[0],openair0_cfg[0].rx_gain[0],gain_range.stop());
return(0);
}
......@@ -289,7 +303,7 @@ int trx_usrp_stop(int card) {
}
rx_gain_calib_table_t calib_table[] = {
rx_gain_calib_table_t calib_table_b210[] = {
{3500000000.0,46.0},
{2660000000.0,53.0},
{2300000000.0,54.0},
......@@ -297,19 +311,29 @@ rx_gain_calib_table_t calib_table[] = {
{816000000.0,62.0},
{-1,0}};
rx_gain_calib_table_t calib_table_x310[] = {
{3500000000.0,77.0},
{2660000000.0,80.0},
{2300000000.0,81.0},
{1880000000.0,82.0},
{816000000.0,85.0},
{-1,0}};
void set_rx_gain_offset(openair0_config_t *openair0_cfg, int chain_index) {
int i=0;
// loop through calibration table to find best adjustment factor for RX frequency
double min_diff = 6e9,diff;
while (calib_table[i].freq>0) {
diff = fabs(openair0_cfg->rx_freq[chain_index] - calib_table[i].freq);
while (openair0_cfg->rx_gain_calib_table[i].freq>0) {
diff = fabs(openair0_cfg->rx_freq[chain_index] - openair0_cfg->rx_gain_calib_table[i].freq);
printf("cal %d: freq %f, offset %f, diff %f\n",
i,calib_table[i].freq,calib_table[i].offset,diff);
i,
openair0_cfg->rx_gain_calib_table[i].freq,
openair0_cfg->rx_gain_calib_table[i].offset,diff);
if (min_diff > diff) {
min_diff = diff;
openair0_cfg->rx_gain_offset[chain_index] = calib_table[i].offset;
openair0_cfg->rx_gain_offset[chain_index] = openair0_cfg->rx_gain_calib_table[i].offset;
}
i++;
}
......@@ -372,9 +396,43 @@ int openair0_dev_init_usrp(openair0_device* device, openair0_config_t *openair0_
// lock mboard clocks
s->usrp->set_clock_source("internal");
//Setting device type to USRP X300/X310
device->type=USRP_X300_IF;
// this is not working yet, master clock has to be set via constructor
// set master clock rate and sample rate for tx & rx for streaming
//s->usrp->set_master_clock_rate(usrp_master_clock);
openair0_cfg[0].rx_gain_calib_table = calib_table_x310;
switch ((int)openair0_cfg[0].sample_rate) {
case 30720000:
// from usrp_time_offset
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 15;
openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
break;
case 15360000:
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 45;
openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet;
break;
case 7680000:
openair0_cfg[0].samples_per_packet = 1024;
openair0_cfg[0].tx_sample_advance = 50;
openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet;
break;
case 1920000:
openair0_cfg[0].samples_per_packet = 256;
openair0_cfg[0].tx_sample_advance = 50;
openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
break;
default:
printf("Error: unknown sampling rate %f\n",openair0_cfg[0].sample_rate);
exit(-1);
break;
}
} else {
printf("Found USRP B200");
s->usrp = uhd::usrp::multi_usrp::make(args);
......@@ -386,10 +444,42 @@ int openair0_dev_init_usrp(openair0_device* device, openair0_config_t *openair0_
// // lock mboard clocks
// s->usrp->set_clock_source("internal");
// set master clock rate and sample rate for tx & rx for streaming
device->type = USRP_B200_IF;
s->usrp->set_master_clock_rate(30.72e6);
}
openair0_cfg[0].rx_gain_calib_table = calib_table_b210;
switch ((int)openair0_cfg[0].sample_rate) {
case 30720000:
// from usrp_time_offset
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 115;
openair0_cfg[0].tx_scheduling_advance = 11*openair0_cfg[0].samples_per_packet;
break;
case 15360000:
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 113;
openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet;
break;
case 7680000:
openair0_cfg[0].samples_per_packet = 1024;
openair0_cfg[0].tx_sample_advance = 103;
openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet;
break;
case 1920000:
openair0_cfg[0].samples_per_packet = 256;
openair0_cfg[0].tx_sample_advance = 40;
openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
break;
default:
printf("Error: unknown sampling rate %f\n",openair0_cfg[0].sample_rate);
exit(-1);
break;
}
}
for(i=0;i<s->usrp->get_rx_num_channels();i++) {
if (i<openair0_cfg[0].rx_num_channels) {
......
......@@ -35,7 +35,7 @@ eNBs =
nb_antennas_tx = 1;
nb_antennas_rx = 1;
tx_gain = 32;
rx_gain = 84;
rx_gain = 116;
prach_root = 0;
prach_config_index = 0;
prach_high_speed = "DISABLE";
......
Active_eNBs = ( "eNB_Eurecom_LTEBox");
# Asn1_verbosity, choice in: none, info, annoying
Asn1_verbosity = "none";
eNBs =
(
{
////////// Identification parameters:
eNB_ID = 0xe00;
cell_type = "CELL_MACRO_ENB";
eNB_name = "eNB_Eurecom_LTEBox";
// Tracking area code, 0x0000 and 0xfffe are reserved values
tracking_area_code = "1";
mobile_country_code = "208";
mobile_network_code = "92";
////////// Physical parameters:
component_carriers = (
{
frame_type = "FDD";
tdd_config = 3;
tdd_config_s = 0;
prefix_type = "NORMAL";
eutra_band = 7;
downlink_frequency = 2660000000L;
uplink_frequency_offset = -120000000;
Nid_cell = 0;
N_RB_DL = 25;
Nid_cell_mbsfn = 0;
nb_antennas_tx = 1;
nb_antennas_rx = 1;
tx_gain = 32;
rx_gain = 116;
prach_root = 0;
prach_config_index = 0;
prach_high_speed = "DISABLE";
prach_zero_correlation = 1;
prach_freq_offset = 2;
pucch_delta_shift = 1;
pucch_nRB_CQI = 1;
pucch_nCS_AN = 0;
pucch_n1_AN = 32;
pdsch_referenceSignalPower = -16;
pdsch_p_b = 0;
pusch_n_SB = 1;
pusch_enable64QAM = "DISABLE";
pusch_hoppingMode = "interSubFrame";
pusch_hoppingOffset = 0;
pusch_groupHoppingEnabled = "ENABLE";
pusch_groupAssignment = 0;
pusch_sequenceHoppingEnabled = "DISABLE";
pusch_nDMRS1 = 1;
phich_duration = "NORMAL";
phich_resource = "ONESIXTH";
srs_enable = "DISABLE";
/* srs_BandwidthConfig =;
srs_SubframeConfig =;
srs_ackNackST =;
srs_MaxUpPts =;*/
pusch_p0_Nominal = -90;
pusch_alpha = "AL1";
pucch_p0_Nominal = -108;
msg3_delta_Preamble = 6;
pucch_deltaF_Format1 = "deltaF2";
pucch_deltaF_Format1b = "deltaF3";
pucch_deltaF_Format2 = "deltaF0";
pucch_deltaF_Format2a = "deltaF0";
pucch_deltaF_Format2b = "deltaF0";
rach_numberOfRA_Preambles = 64;
rach_preamblesGroupAConfig = "DISABLE";
/*
rach_sizeOfRA_PreamblesGroupA = ;
rach_messageSizeGroupA = ;
rach_messagePowerOffsetGroupB = ;
*/
rach_powerRampingStep = 4;
rach_preambleInitialReceivedTargetPower = -108;
rach_preambleTransMax = 10;
rach_raResponseWindowSize = 10;
rach_macContentionResolutionTimer = 48;
rach_maxHARQ_Msg3Tx = 4;
pcch_default_PagingCycle = 128;
pcch_nB = "oneT";
bcch_modificationPeriodCoeff = 2;
ue_TimersAndConstants_t300 = 1000;
ue_TimersAndConstants_t301 = 1000;
ue_TimersAndConstants_t310 = 1000;
ue_TimersAndConstants_t311 = 10000;
ue_TimersAndConstants_n310 = 20;
ue_TimersAndConstants_n311 = 1;
}
);
srb1_parameters :
{
# timer_poll_retransmit = (ms) [5, 10, 15, 20,... 250, 300, 350, ... 500]
timer_poll_retransmit = 80;
# timer_reordering = (ms) [0,5, ... 100, 110, 120, ... ,200]
timer_reordering = 35;
# timer_reordering = (ms) [0,5, ... 250, 300, 350, ... ,500]
timer_status_prohibit = 0;
# poll_pdu = [4, 8, 16, 32 , 64, 128, 256, infinity(>10000)]
poll_pdu = 4;
# poll_byte = (kB) [25,50,75,100,125,250,375,500,750,1000,1250,1500,2000,3000,infinity(>10000)]
poll_byte = 99999;
# max_retx_threshold = [1, 2, 3, 4 , 6, 8, 16, 32]
max_retx_threshold = 4;
}
# ------- SCTP definitions
SCTP :
{
# Number of streams to use in input/output
SCTP_INSTREAMS = 2;
SCTP_OUTSTREAMS = 2;
};
////////// MME parameters:
mme_ip_address = ( { ipv4 = "192.168.12.26";
ipv6 = "192:168:30::17";
active = "yes";
preference = "ipv4";
}
);
NETWORK_INTERFACES :
{
ENB_INTERFACE_NAME_FOR_S1_MME = "eth0";
ENB_IPV4_ADDRESS_FOR_S1_MME = "192.168.12.111/24";
ENB_INTERFACE_NAME_FOR_S1U = "eth0";
ENB_IPV4_ADDRESS_FOR_S1U = "192.168.12.111/24";
ENB_PORT_FOR_S1U = 2152; # Spec 2152
};
log_config :
{
global_log_level ="debug";
global_log_verbosity ="medium";
hw_log_level ="info";
hw_log_verbosity ="medium";
phy_log_level ="info";
phy_log_verbosity ="medium";
mac_log_level ="info";
mac_log_verbosity ="high";
rlc_log_level ="info";
rlc_log_verbosity ="medium";
pdcp_log_level ="info";
pdcp_log_verbosity ="medium";
rrc_log_level ="info";
rrc_log_verbosity ="medium";
};
}
);
......@@ -35,7 +35,7 @@ eNBs =
nb_antennas_tx = 1;
nb_antennas_rx = 1;
tx_gain = 32;
rx_gain = 82;
rx_gain = 120;
prach_root = 0;
prach_config_index = 0;
prach_high_speed = "DISABLE";
......
......@@ -16,7 +16,7 @@ eNBs =
tracking_area_code = "1";
mobile_country_code = "208";
mobile_network_code = "95";
mobile_network_code = "92";
////////// Physical parameters:
......@@ -30,12 +30,12 @@ eNBs =
downlink_frequency = 2660000000L;
uplink_frequency_offset = -120000000;
Nid_cell = 0;
N_RB_DL = 25;
N_RB_DL = 100;
Nid_cell_mbsfn = 0;
nb_antennas_tx = 1;
nb_antennas_rx = 1;
tx_gain = 90;
rx_gain = 120;
rx_gain = 119;
prach_root = 0;
prach_config_index = 0;
prach_high_speed = "DISABLE";
......@@ -130,12 +130,10 @@ eNBs =
};
////////// MME parameters:
mme_ip_address = ( { ipv4 = "192.168.12.62";
ipv6 = "192:168:30::17";
active = "yes";
preference = "ipv4";
}
);
mme_ip_address = ( {ipv4 = "192.168.12.26";
ipv6="192:168:30::17";
active="yes";
preference="ipv4";});
NETWORK_INTERFACES :
{
......
......@@ -35,7 +35,7 @@ eNBs =
nb_antennas_tx = 1;
nb_antennas_rx = 1;
tx_gain = 32;
rx_gain = 84;
rx_gain = 116;
prach_root = 0;
prach_config_index = 0;
prach_high_speed = "DISABLE";
......
......@@ -172,7 +172,7 @@ void config_BBU_mod( rrh_module_t *mod_enb, uint8_t RT_flag, uint8_t NRT_flag) {
mod_enb->devs->openair0_cfg.tx_delay = 8;
}
}
else if (mod_enb->devs->type == USRP_IF) {
else if ((mod_enb->devs->type == USRP_B200_IF )||(mod_enb->devs->type == USRP_X300_IF )) {
if ( mod_enb->devs->openair0_cfg.num_rb_dl == 100 ) {
mod_enb->devs->openair0_cfg.samples_per_packet = 2048;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 175;
......
......@@ -293,10 +293,6 @@ static int tx_max_power[MAX_NUM_CCs]; /* = {0,0}*/;
char ref[128] = "internal";
char channels[128] = "0";
//unsigned int samples_per_frame = 307200;
//unsigned int tx_forward_nsamps=0;
//int tx_delay;
#endif
int rx_input_level_dBm;
......@@ -1559,7 +1555,7 @@ static void* eNB_thread( void* arg )
int hw_subframe = 0; // 0..NUM_ENB_THREADS-1 => 0..9
unsigned int rx_pos = 0;
unsigned int tx_pos = 0; //spp*tx_delay;
unsigned int tx_pos = 0;
#endif
int CC_id=0;
struct timespec trx_time0, trx_time1, trx_time2;
......@@ -1634,8 +1630,8 @@ static void* eNB_thread( void* arg )
int frame = 0;
#ifndef EXMIMO
spp = openair0_cfg[0].samples_per_packet;
tx_pos=spp*openair0_cfg[0].tx_delay;
spp = openair0_cfg[0].samples_per_packet;
tx_pos = openair0_cfg[0].tx_scheduling_advance;
#endif
while (!oai_exit) {
......@@ -1796,11 +1792,10 @@ static void* eNB_thread( void* arg )
// prepare tx buffer pointers
for (i=0; i<PHY_vars_eNB_g[0][0]->lte_frame_parms.nb_antennas_tx; i++)
txp[i] = (void*)&txdata[i][tx_pos];
//printf("tx_pos %d ts %d, ts_offset %d txp[i] %p, ap %d\n", tx_pos, timestamp, (timestamp+(tx_delay*spp)-tx_forward_nsamps),txp[i], i);
// if symb_written < spp ==> error
if (frame > 50) {
openair0.trx_write_func(&openair0,
(timestamp+(openair0_cfg[card].tx_delay*spp)-openair0_cfg[card].tx_forward_nsamps),
(timestamp+(openair0_cfg[card].tx_scheduling_advance)-openair0_cfg[card].tx_sample_advance),
txp,
spp,
PHY_vars_eNB_g[0][0]->lte_frame_parms.nb_antennas_tx,
......@@ -1808,7 +1803,7 @@ static void* eNB_thread( void* arg )
}
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TS, timestamp&0xffffffff );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (timestamp+(openair0_cfg[card].tx_delay*spp)-openair0_cfg[card].tx_forward_nsamps)&0xffffffff );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (timestamp+(openair0_cfg[card].tx_scheduling_advance)-openair0_cfg[card].tx_sample_advance)&0xffffffff );
stop_meas( &softmodem_stats_mt );
clock_gettime( CLOCK_MONOTONIC, &trx_time2 );
......@@ -2847,66 +2842,33 @@ int main( int argc, char **argv )
for (card=0; card<MAX_CARDS; card++) {
if(frame_parms[0]->N_RB_DL == 100) {
sample_rate = 30.72e6;
bw = 10.0e6;
#ifndef EXMIMO
openair0_cfg[card].sample_rate=30.72e6;
openair0_cfg[card].samples_per_packet = 2048;
openair0_cfg[card].samples_per_frame = 307200;
openair0_cfg[card].tx_bw = 10e6;
openair0_cfg[card].rx_bw = 10e6;
// from usrp_time_offset
openair0_cfg[card].tx_forward_nsamps = 175;
openair0_cfg[card].tx_delay = 8;
#endif
} else if(frame_parms[0]->N_RB_DL == 50) {
sample_rate = 15.36e6;
bw = 5.0e6;
#ifndef EXMIMO
openair0_cfg[card].sample_rate=15.36e6;
openair0_cfg[card].samples_per_packet = 2048;
openair0_cfg[card].samples_per_frame = 153600;
openair0_cfg[card].tx_bw = 5e6;
openair0_cfg[card].rx_bw = 5e6;
openair0_cfg[card].tx_forward_nsamps = 95;
openair0_cfg[card].tx_delay = 5;
#endif
} else if (frame_parms[0]->N_RB_DL == 25) {
sample_rate = 7.68e6;
bw = 2.5e6;
#ifndef EXMIMO
openair0_cfg[card].sample_rate=7.68e6;
openair0_cfg[card].samples_per_frame = 76800;
openair0_cfg[card].tx_bw = 2.5e6;
openair0_cfg[card].rx_bw = 2.5e6;
openair0_cfg[card].samples_per_packet = 1024;
#ifdef OAI_USRP
openair0_cfg[card].tx_forward_nsamps = 70;
openair0_cfg[card].tx_delay = 5;
#elif OAI_BLADERF
openair0_cfg[card].tx_forward_nsamps = 0;
openair0_cfg[card].tx_delay = 8;
#endif
#endif
} else if (frame_parms[0]->N_RB_DL == 6) {
sample_rate = 1.92e6;
bw = 0.96e6;
#ifndef EXMIMO
openair0_cfg[card].sample_rate=1.92e6;
openair0_cfg[card].samples_per_packet = 256;
openair0_cfg[card].samples_per_frame = 19200;
openair0_cfg[card].tx_bw = 1.5e6;
openair0_cfg[card].rx_bw = 1.5e6;
openair0_cfg[card].tx_forward_nsamps = 40;
openair0_cfg[card].tx_delay = 8;
#endif
}
#ifdef ETHERNET
//calib needed
openair0_cfg[card].tx_delay = 0;
openair0_cfg[card].tx_forward_nsamps = 0;
openair0_cfg[card].tx_scheduling_advance = 0;
openair0_cfg[card].tx_sample_advance = 0;
if (frame_parms[0]->N_RB_DL == 6)
openair0_cfg[card].samples_per_packet = 256;
......@@ -2917,9 +2879,6 @@ int main( int argc, char **argv )
#endif
#ifndef EXMIMO
openair0_cfg[card].samples_per_packet = openair0_cfg[0].samples_per_packet;
#endif
printf("HW: Configuring card %d, nb_antennas_tx/rx %d/%d\n",card,
((UE_flag==0) ? PHY_vars_eNB_g[0][0]->lte_frame_parms.nb_antennas_tx : PHY_vars_UE_g[0][0]->lte_frame_parms.nb_antennas_tx),
((UE_flag==0) ? PHY_vars_eNB_g[0][0]->lte_frame_parms.nb_antennas_rx : PHY_vars_UE_g[0][0]->lte_frame_parms.nb_antennas_rx));
......@@ -2935,11 +2894,9 @@ int main( int argc, char **argv )
openair0_cfg[card].remote_ip = &rrh_eNB_ip[0];
openair0_cfg[card].remote_port = rrh_eNB_port;
}
openair0_cfg[card].num_rb_dl=frame_parms[0]->N_RB_DL;
openair0_cfg[card].num_rb_dl=frame_parms[0]->N_RB_DL;
#endif
openair0_cfg[card].sample_rate = sample_rate;
openair0_cfg[card].tx_bw = bw;
openair0_cfg[card].rx_bw = bw;
// in the case of the USRP, the following variables need to be initialized before the init
// since the USRP only supports one CC (for the moment), we initialize all the cards with first CC.
// in the case of EXMIMO2, these values are overwirtten in the function setup_eNB/UE_buffer
......@@ -2965,24 +2922,28 @@ openair0_cfg[card].num_rb_dl=frame_parms[0]->N_RB_DL;
else {
openair0_cfg[card].rx_gain[i] = PHY_vars_UE_g[0][0]->rx_total_gain_dB;// - USRP_GAIN_OFFSET; // calibrated for USRP B210 @ 2.6 GHz, 30.72 MS/s
}
switch(frame_parms[0]->N_RB_DL) {
case 6:
openair0_cfg[card].rx_gain[i] -= 6;
openair0_cfg[card].rx_gain[i] -= 12;
break;
case 25:
openair0_cfg[card].rx_gain[i] += 6;
openair0_cfg[card].rx_gain[i] -= 6;
break;
case 50:
openair0_cfg[card].rx_gain[i] += 8;
openair0_cfg[card].rx_gain[i] -= 3;
break;
case 100:
openair0_cfg[card].rx_gain[i] -= 0;
break;
default:
break;
}
}
......@@ -3070,7 +3031,7 @@ openair0_cfg[card].num_rb_dl=frame_parms[0]->N_RB_DL;
// connect the TX/RX buffers
if (UE_flag==1) {
#ifdef OAI_USRP
openair_daq_vars.timing_advance = 160;
openair_daq_vars.timing_advance = 0;
#else
openair_daq_vars.timing_advance = 160;
#endif
......
......@@ -410,6 +410,7 @@ static void *UE_thread_synch(void *arg)
UE->UE_scan_carrier = 0;
// rerun with new cell parameters and frequency-offset
for (i=0;i<openair0_cfg[0].rx_num_channels;i++) {
openair0_cfg[0].rx_gain[i] = UE->rx_total_gain_dB;//-USRP_GAIN_OFFSET;