diff --git a/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp b/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
index 1cf3359e0e8bdf2a5f3aa4bb5b40dac9fd764c48..3237d6ddac6da42d3985341cbc94fb6f6aa95b7f 100644
--- a/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
+++ b/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
@@ -38,6 +38,7 @@
#include <stdio.h>
#include <uhd/utils/thread_priority.hpp>
#include <uhd/usrp/multi_usrp.hpp>
+#include <uhd/version.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/algorithm/string.hpp>
#include <iostream>
@@ -304,27 +305,59 @@ int trx_usrp_stop(int card) {
rx_gain_calib_table_t calib_table_b210[] = {
- {3500000000.0,46.0},
+ {3500000000.0,47.0},
{2660000000.0,53.0},
{2300000000.0,54.0},
{1880000000.0,55.0},
{816000000.0,62.0},
{-1,0}};
+rx_gain_calib_table_t calib_table_b210_38[] = {
+ {3500000000.0,44.0},
+ {2660000000.0,49.8},
+ {2300000000.0,51.0},
+ {1880000000.0,53.0},
+ {816000000.0,57.0},
+ {-1,0}};
+
rx_gain_calib_table_t calib_table_x310[] = {
{3500000000.0,77.0},
- {2660000000.0,80.0},
+ {2660000000.0,81.0},
{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) {
+void set_rx_gain_offset(openair0_config_t *openair0_cfg, int chain_index,int bw_gain_adjust) {
int i=0;
// loop through calibration table to find best adjustment factor for RX frequency
- double min_diff = 6e9,diff;
-
+ double min_diff = 6e9,diff,gain_adj=0.0;
+ if (bw_gain_adjust==1) {
+ switch ((int)openair0_cfg[0].sample_rate) {
+ case 30720000:
+ break;
+ case 23040000:
+ gain_adj=1.25;
+ break;
+ case 15360000:
+ gain_adj=3.0;
+ break;
+ case 7680000:
+ gain_adj=6.0;
+ break;
+ case 3840000:
+ gain_adj=9.0;
+ break;
+ case 1920000:
+ gain_adj=12.0;
+ break;
+ default:
+ printf("unknown sampling rate %d\n",(int)openair0_cfg[0].sample_rate);
+ exit(-1);
+ break;
+ }
+ }
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",
@@ -333,7 +366,7 @@ void set_rx_gain_offset(openair0_config_t *openair0_cfg, int chain_index) {
openair0_cfg->rx_gain_calib_table[i].offset,diff);
if (min_diff > diff) {
min_diff = diff;
- openair0_cfg->rx_gain_offset[chain_index] = openair0_cfg->rx_gain_calib_table[i].offset;
+ openair0_cfg->rx_gain_offset[chain_index] = openair0_cfg->rx_gain_calib_table[i].offset+gain_adj;
}
i++;
}
@@ -366,8 +399,13 @@ int openair0_dev_init_usrp(openair0_device* device, openair0_config_t *openair0_
uhd::device_addrs_t device_adds = uhd::device::find(args);
size_t i;
+
+ int vers=0,subvers=0,subsubvers=0;
+ int bw_gain_adjust=0;
+
+ sscanf(uhd::get_version_string().c_str(),"%d.%d.%d",&vers,&subvers,&subsubvers);
- printf("Checking for USRPs\n");
+ printf("Checking for USRPs : UHD %s (%d.%d.%d)\n",uhd::get_version_string().c_str(),vers,subvers,subsubvers);
if(device_adds.size() == 0)
{
@@ -388,6 +426,7 @@ int openair0_dev_init_usrp(openair0_device* device, openair0_config_t *openair0_
}
+
printf("Found USRP X300\n");
s->usrp = uhd::usrp::multi_usrp::make(args);
// s->usrp->set_rx_subdev_spec(rx_subdev);
@@ -410,21 +449,29 @@ int openair0_dev_init_usrp(openair0_device* device, openair0_config_t *openair0_
// from usrp_time_offset
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 15;
+ openair0_cfg[0].tx_bw = 20e6;
+ openair0_cfg[0].rx_bw = 20e6;
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_bw = 10e6;
+ openair0_cfg[0].rx_bw = 10e6;
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_bw = 5e6;
+ openair0_cfg[0].rx_bw = 5e6;
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_bw = 1.25e6;
+ openair0_cfg[0].rx_bw = 1.25e6;
openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
break;
default:
@@ -448,38 +495,54 @@ int openair0_dev_init_usrp(openair0_device* device, openair0_config_t *openair0_
device->type = USRP_B200_IF;
- openair0_cfg[0].rx_gain_calib_table = calib_table_b210;
-
+ if ((vers == 3) && (subvers == 9) && (subsubvers>=2)) {
+ openair0_cfg[0].rx_gain_calib_table = calib_table_b210;
+ bw_gain_adjust=0;
+ }
+ else {
+ openair0_cfg[0].rx_gain_calib_table = calib_table_b210_38;
+ bw_gain_adjust=1;
+ }
switch ((int)openair0_cfg[0].sample_rate) {
case 30720000:
s->usrp->set_master_clock_rate(30.72e6);
// from usrp_time_offset
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 115;
+ openair0_cfg[0].tx_bw = 20e6;
+ openair0_cfg[0].rx_bw = 20e6;
openair0_cfg[0].tx_scheduling_advance = 11*openair0_cfg[0].samples_per_packet;
break;
case 23040000:
s->usrp->set_master_clock_rate(46.08e6);
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 113;
+ openair0_cfg[0].tx_bw = 20e6;
+ openair0_cfg[0].rx_bw = 20e6;
openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
break;
case 15360000:
s->usrp->set_master_clock_rate(30.72e6);
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 113;
+ openair0_cfg[0].tx_bw = 10e6;
+ openair0_cfg[0].rx_bw = 10e6;
openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet;
break;
case 7680000:
s->usrp->set_master_clock_rate(30.72e6);
openair0_cfg[0].samples_per_packet = 1024;
openair0_cfg[0].tx_sample_advance = 70;//103;
+ openair0_cfg[0].tx_bw = 5e6;
+ openair0_cfg[0].rx_bw = 5e6;
openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet;
break;
case 1920000:
s->usrp->set_master_clock_rate(30.72e6);
openair0_cfg[0].samples_per_packet = 256;
openair0_cfg[0].tx_sample_advance = 40;
+ openair0_cfg[0].tx_bw = 1.25e6;
+ openair0_cfg[0].rx_bw = 1.25e6;
openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
break;
default:
@@ -495,7 +558,7 @@ int openair0_dev_init_usrp(openair0_device* device, openair0_config_t *openair0_
s->usrp->set_rx_bandwidth(openair0_cfg[0].rx_bw,i);
printf("Setting rx freq/gain on channel %lu/%lu : BW %f (readback %f)\n",i,s->usrp->get_rx_num_channels(),openair0_cfg[0].rx_bw/1e6,s->usrp->get_rx_bandwidth(i)/1e6);
s->usrp->set_rx_freq(openair0_cfg[0].rx_freq[i],i);
- set_rx_gain_offset(&openair0_cfg[0],i);
+ set_rx_gain_offset(&openair0_cfg[0],i,bw_gain_adjust);
::uhd::gain_range_t gain_range = s->usrp->get_rx_gain_range(i);
// limit to maximum gain
diff --git a/targets/RT/USER/lte-softmodem.c b/targets/RT/USER/lte-softmodem.c
index ca07b15e9013910e43cc271bd840f980c72a95e6..3fde0de43c29ef2769d8de577959c6d1b684f37a 100644
--- a/targets/RT/USER/lte-softmodem.c
+++ b/targets/RT/USER/lte-softmodem.c
@@ -2975,7 +2975,8 @@ int main( int argc, char **argv )
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
}
-
+
+#if 0 // UHD 3.8
switch(frame_parms[0]->N_RB_DL) {
case 6:
openair0_cfg[card].rx_gain[i] -= 12;
@@ -2996,7 +2997,7 @@ int main( int argc, char **argv )
default:
break;
}
-
+#endif
}
diff --git a/targets/RT/USER/lte-ue.c b/targets/RT/USER/lte-ue.c
index 9930f677c102a22eb09060c35fdfcea3bb940d63..4f722a54cf50fe3d6eedde42ff4c98ec399dec2d 100644
--- a/targets/RT/USER/lte-ue.c
+++ b/targets/RT/USER/lte-ue.c
@@ -279,7 +279,7 @@ static void *UE_thread_synch(void *arg)
#ifdef OAI_USRP
openair0_cfg[card].rx_gain[i] = UE->rx_total_gain_dB;//-USRP_GAIN_OFFSET;
-
+#if 0 // UHD 3.8
switch(UE->lte_frame_parms.N_RB_DL) {
case 6:
openair0_cfg[card].rx_gain[i] -= 12;
@@ -301,7 +301,7 @@ static void *UE_thread_synch(void *arg)
printf( "Unknown number of RBs %d\n", UE->lte_frame_parms.N_RB_DL );
break;
}
-
+#endif
printf( "UE synch: setting RX gain (%d,%d) to %f\n", card, i, openair0_cfg[card].rx_gain[i] );
#endif
}
@@ -357,7 +357,8 @@ static void *UE_thread_synch(void *arg)
openair0_cfg[card].tx_freq[i] = downlink_frequency[card][i]+uplink_frequency_offset[card][i];
#ifdef OAI_USRP
openair0_cfg[card].rx_gain[i] = UE->rx_total_gain_dB;//-USRP_GAIN_OFFSET; // 65 calibrated for USRP B210 @ 2.6 GHz
-
+
+#if 0 // UHD 3.8
switch(UE->lte_frame_parms.N_RB_DL) {
case 6:
openair0_cfg[card].rx_gain[i] -= 12;
@@ -379,7 +380,7 @@ static void *UE_thread_synch(void *arg)
printf("Unknown number of RBs %d\n",UE->lte_frame_parms.N_RB_DL);
break;
}
-
+#endif
printf("UE synch: setting RX gain (%d,%d) to %f\n",card,i,openair0_cfg[card].rx_gain[i]);
#endif
@@ -423,25 +424,25 @@ static void *UE_thread_synch(void *arg)
openair0_cfg[0].sample_rate =1.92e6;
openair0_cfg[0].rx_bw =.96e6;
openair0_cfg[0].tx_bw =.96e6;
- openair0_cfg[0].rx_gain[0] -= 12;
+ // openair0_cfg[0].rx_gain[0] -= 12;
break;
case 25:
openair0_cfg[0].sample_rate =7.68e6;
openair0_cfg[0].rx_bw =2.5e6;
openair0_cfg[0].tx_bw =2.5e6;
- openair0_cfg[0].rx_gain[0] -= 6;
+ // openair0_cfg[0].rx_gain[0] -= 6;
break;
case 50:
openair0_cfg[0].sample_rate =15.36e6;
openair0_cfg[0].rx_bw =5.0e6;
openair0_cfg[0].tx_bw =5.0e6;
- openair0_cfg[0].rx_gain[0] -= 3;
+ // openair0_cfg[0].rx_gain[0] -= 3;
break;
case 100:
openair0_cfg[0].sample_rate=30.72e6;
openair0_cfg[0].rx_bw=10.0e6;
openair0_cfg[0].tx_bw=10.0e6;
- openair0_cfg[0].rx_gain[0] -= 0;
+ // openair0_cfg[0].rx_gain[0] -= 0;
break;
}
#ifndef EXMIMO