Commit 09e354a2 authored by Raymond Knopp's avatar Raymond Knopp
Browse files

tested 23.04 Ms/s sampling for 20 MHz on USRP B210, modifications in usrp_lib.cpp.

parent f53df352
...@@ -446,28 +446,38 @@ int openair0_dev_init_usrp(openair0_device* device, openair0_config_t *openair0_ ...@@ -446,28 +446,38 @@ int openair0_dev_init_usrp(openair0_device* device, openair0_config_t *openair0_
// set master clock rate and sample rate for tx & rx for streaming // set master clock rate and sample rate for tx & rx for streaming
device->type = USRP_B200_IF; device->type = USRP_B200_IF;
s->usrp->set_master_clock_rate(30.72e6);
openair0_cfg[0].rx_gain_calib_table = calib_table_b210; openair0_cfg[0].rx_gain_calib_table = calib_table_b210;
switch ((int)openair0_cfg[0].sample_rate) { switch ((int)openair0_cfg[0].sample_rate) {
case 30720000: case 30720000:
s->usrp->set_master_clock_rate(30.72e6);
// from usrp_time_offset // from usrp_time_offset
openair0_cfg[0].samples_per_packet = 2048; openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 115; openair0_cfg[0].tx_sample_advance = 115;
openair0_cfg[0].tx_scheduling_advance = 11*openair0_cfg[0].samples_per_packet; openair0_cfg[0].tx_scheduling_advance = 11*openair0_cfg[0].samples_per_packet;
break; 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_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
break;
case 15360000: case 15360000:
s->usrp->set_master_clock_rate(30.72e6);
openair0_cfg[0].samples_per_packet = 2048; openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 113; openair0_cfg[0].tx_sample_advance = 113;
openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet; openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet;
break; break;
case 7680000: case 7680000:
s->usrp->set_master_clock_rate(30.72e6);
openair0_cfg[0].samples_per_packet = 1024; openair0_cfg[0].samples_per_packet = 1024;
openair0_cfg[0].tx_sample_advance = 70;//103; openair0_cfg[0].tx_sample_advance = 70;//103;
openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet; openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet;
break; break;
case 1920000: case 1920000:
s->usrp->set_master_clock_rate(30.72e6);
openair0_cfg[0].samples_per_packet = 256; openair0_cfg[0].samples_per_packet = 256;
openair0_cfg[0].tx_sample_advance = 40; openair0_cfg[0].tx_sample_advance = 40;
openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet; openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
......
...@@ -28,7 +28,7 @@ eNBs = ...@@ -28,7 +28,7 @@ eNBs =
tdd_config_s = 0; tdd_config_s = 0;
prefix_type = "NORMAL"; prefix_type = "NORMAL";
eutra_band = 7; eutra_band = 7;
downlink_frequency = 2660000000L; downlink_frequency = 2680000000L;
uplink_frequency_offset = -120000000; uplink_frequency_offset = -120000000;
Nid_cell = 0; Nid_cell = 0;
N_RB_DL = 100; N_RB_DL = 100;
...@@ -36,7 +36,7 @@ eNBs = ...@@ -36,7 +36,7 @@ eNBs =
nb_antennas_tx = 1; nb_antennas_tx = 1;
nb_antennas_rx = 1; nb_antennas_rx = 1;
tx_gain = 90; tx_gain = 90;
rx_gain = 120; rx_gain = 127;
prach_root = 0; prach_root = 0;
prach_config_index = 0; prach_config_index = 0;
prach_high_speed = "DISABLE"; prach_high_speed = "DISABLE";
......
...@@ -28,7 +28,7 @@ eNBs = ...@@ -28,7 +28,7 @@ eNBs =
tdd_config_s = 0; tdd_config_s = 0;
prefix_type = "NORMAL"; prefix_type = "NORMAL";
eutra_band = 7; eutra_band = 7;
downlink_frequency = 2660000000L; downlink_frequency = 2680000000L;
uplink_frequency_offset = -120000000; uplink_frequency_offset = -120000000;
Nid_cell = 0; Nid_cell = 0;
N_RB_DL = 50; N_RB_DL = 50;
...@@ -36,7 +36,7 @@ eNBs = ...@@ -36,7 +36,7 @@ eNBs =
nb_antennas_tx = 1; nb_antennas_tx = 1;
nb_antennas_rx = 1; nb_antennas_rx = 1;
tx_gain = 90; tx_gain = 90;
rx_gain = 118; rx_gain = 130;
prach_root = 0; prach_root = 0;
prach_config_index = 0; prach_config_index = 0;
prach_high_speed = "DISABLE"; prach_high_speed = "DISABLE";
......
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