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Commit 74054c61 authored by Raymond Knopp's avatar Raymond Knopp
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added LTE band scanning for UE 

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@6415 818b1a75-f10b-46b9-bf7c-635c3b92a50f
parent 4082f549
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Showing with 323 additions and 230 deletions
targets/RT/USER/lte-softmodem.c
View file @ 74054c61
......@@ -343,6 +343,7 @@ int tx_delay;
static runmode_t mode;
static int rx_input_level_dBm;
static int UE_scan=1;
static int online_log_messages=0;
#ifdef XFORMS
extern int otg_enabled;
......@@ -409,6 +410,58 @@ int rrh_UE_port = 1600;
char uecap_xer[1024],uecap_xer_in=0;
#define KHz (1000UL)
#define MHz (1000 * KHz)
typedef struct eutra_band_s {
int16_t band;
uint32_t ul_min;
uint32_t ul_max;
uint32_t dl_min;
uint32_t dl_max;
lte_frame_type_t frame_type;
} eutra_band_t;
typedef struct band_info_s {
int nbands;
eutra_band_t band_info[100];
} band_info_t;
band_info_t bands_to_scan;
static const eutra_band_t eutra_bands[] =
{
{ 1, 1920 * MHz, 1980 * MHz, 2110 * MHz, 2170 * MHz, FDD},
{ 2, 1850 * MHz, 1910 * MHz, 1930 * MHz, 1990 * MHz, FDD},
{ 3, 1710 * MHz, 1785 * MHz, 1805 * MHz, 1880 * MHz, FDD},
{ 4, 1710 * MHz, 1755 * MHz, 2110 * MHz, 2155 * MHz, FDD},
{ 5, 824 * MHz, 849 * MHz, 869 * MHz, 894 * MHz, FDD},
{ 6, 830 * MHz, 840 * MHz, 875 * MHz, 885 * MHz, FDD},
{ 7, 2500 * MHz, 2570 * MHz, 2620 * MHz, 2690 * MHz, FDD},
{ 8, 880 * MHz, 915 * MHz, 925 * MHz, 960 * MHz, FDD},
{ 9, 1749900 * KHz, 1784900 * KHz, 1844900 * KHz, 1879900 * KHz, FDD},
{10, 1710 * MHz, 1770 * MHz, 2110 * MHz, 2170 * MHz, FDD},
{11, 1427900 * KHz, 1452900 * KHz, 1475900 * KHz, 1500900 * KHz, FDD},
{12, 698 * MHz, 716 * MHz, 728 * MHz, 746 * MHz, FDD},
{13, 777 * MHz, 787 * MHz, 746 * MHz, 756 * MHz, FDD},
{14, 788 * MHz, 798 * MHz, 758 * MHz, 768 * MHz, FDD},
{17, 704 * MHz, 716 * MHz, 734 * MHz, 746 * MHz, FDD},
{33, 1900 * MHz, 1920 * MHz, 1900 * MHz, 1920 * MHz, TDD},
{34, 2010 * MHz, 2025 * MHz, 2010 * MHz, 2025 * MHz, TDD},
{35, 1850 * MHz, 1910 * MHz, 1850 * MHz, 1910 * MHz, TDD},
{36, 1930 * MHz, 1990 * MHz, 1930 * MHz, 1990 * MHz, TDD},
{37, 1910 * MHz, 1930 * MHz, 1910 * MHz, 1930 * MHz, TDD},
{38, 2570 * MHz, 2620 * MHz, 2570 * MHz, 2630 * MHz, TDD},
{39, 1880 * MHz, 1920 * MHz, 1880 * MHz, 1920 * MHz, TDD},
{40, 2300 * MHz, 2400 * MHz, 2300 * MHz, 2400 * MHz, TDD},
{41, 2496 * MHz, 2690 * MHz, 2496 * MHz, 2690 * MHz, TDD},
{42, 3400 * MHz, 3600 * MHz, 3400 * MHz, 3600 * MHz, TDD},
{43, 3600 * MHz, 3800 * MHz, 3600 * MHz, 3800 * MHz, TDD},
{44, 703 * MHz, 803 * MHz, 703 * MHz, 803 * MHz, TDD},
};
unsigned int build_rflocal(int txi, int txq, int rxi, int rxq)
{
return (txi + (txq<<6) + (rxi<<12) + (rxq<<18));
......@@ -967,13 +1020,13 @@ static void * eNB_thread_tx(void *param) {
if (task==NULL) {
LOG_E(PHY,"[SCHED][eNB] Problem starting eNB_proc_TX thread_index %d (%s)!!!!\n",proc->subframe,task_name);
return 0;
}
}
else {
LOG_I(PHY,"[SCHED][eNB] eNB TX thread CC %d SF %d started with id %p\n",
proc->CC_id,
proc->subframe,
task);
}
}
#else
#ifdef LOWLATENCY
attr.size = sizeof(attr);
......@@ -990,7 +1043,7 @@ static void * eNB_thread_tx(void *param) {
if (sched_setattr(0, &attr, flags) < 0 ){
perror("[SCHED] eNB tx thread: sched_setattr failed\n");
exit(-1);
}
}
LOG_I(HW,"[SCHED] eNB TX deadline thread %d(id %ld) started on CPU %d\n",
proc->subframe, gettid(),sched_getcpu());
#else
......@@ -1019,7 +1072,7 @@ static void * eNB_thread_tx(void *param) {
if (pthread_mutex_lock(&proc->mutex_tx) != 0) {
LOG_E(PHY,"[SCHED][eNB] error locking mutex for eNB TX proc %d\n",proc->subframe);
oai_exit=1;
}
}
else {
while (proc->instance_cnt_tx < 0) {
......@@ -1027,13 +1080,13 @@ static void * eNB_thread_tx(void *param) {
//printf("Waiting and unlocking mutex for eNB proc %d (subframe_tx %d)\n",proc->subframe,proc->instance_cnt_tx);
pthread_cond_wait(&proc->cond_tx,&proc->mutex_tx);
}
}
// LOG_I(PHY,"Waking up and unlocking mutex for eNB proc %d instance_cnt_tx %d\n",proc->subframe,proc->instance_cnt_tx);
if (pthread_mutex_unlock(&proc->mutex_tx) != 0) {
LOG_E(PHY,"[SCHED][eNB] error unlocking mutex for eNB TX proc %d\n",proc->subframe);
oai_exit=1;
}
}
}
}
vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_TX0+(2*proc->subframe),1);
vcd_signal_dumper_dump_variable_by_name(VCD_SIGNAL_DUMPER_VARIABLES_FRAME_NUMBER_TX_ENB, proc->frame_tx);
start_meas(&softmodem_stats_tx_sf[proc->subframe]);
......@@ -1047,30 +1100,30 @@ static void * eNB_thread_tx(void *param) {
phy_procedures_eNB_TX(proc->subframe,PHY_vars_eNB_g[0][proc->CC_id],0,no_relay,NULL);
}
}
if ((subframe_select(&PHY_vars_eNB_g[0][proc->CC_id]->lte_frame_parms,proc->subframe_tx)==SF_S)) {
phy_procedures_eNB_TX(proc->subframe,PHY_vars_eNB_g[0][proc->CC_id],0,no_relay,NULL);
}
}
do_OFDM_mod_rt(proc->subframe_tx,PHY_vars_eNB_g[0][proc->CC_id]);
if (pthread_mutex_lock(&proc->mutex_tx) != 0) {
printf("[openair][SCHED][eNB] error locking mutex for eNB TX proc %d\n",proc->subframe);
}
}
else {
proc->instance_cnt_tx--;
if (pthread_mutex_unlock(&proc->mutex_tx) != 0) {
printf("[openair][SCHED][eNB] error unlocking mutex for eNB TX proc %d\n",proc->subframe);
}
}
}
}
proc->frame_tx++;
if (proc->frame_tx==1024)
proc->frame_tx=0;
}
}
stop_meas(&softmodem_stats_tx_sf[proc->subframe]);
vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_TX0+(2*proc->subframe),0);
#ifdef HARD_RT
......@@ -1093,8 +1146,8 @@ static void * eNB_thread_tx(void *param) {
#endif
}
int eNB_thread_rx_status[10];
static void * eNB_thread_rx(void *param) {
int eNB_thread_rx_status[10];
static void * eNB_thread_rx(void *param) {
//unsigned long cpuid;
eNB_proc_t *proc = (eNB_proc_t*)param;
......@@ -1121,7 +1174,7 @@ static void * eNB_thread_tx(void *param) {
if (task==NULL) {
LOG_E(PHY,"[SCHED][eNB] Problem starting eNB_proc_RX thread_index %d (%s)!!!!\n",proc->subframe,task_name);
return 0;
}
}
else {
LOG_I(PHY,"[SCHED][eNB] eNB RX thread CC_id %d SF %d started with id %p\n", /* on CPU %d*/
proc->CC_id,
......@@ -1771,10 +1824,21 @@ int is_synchronized=1;
int is_synchronized=0;
#endif
typedef enum {
rssi=0,
pbch=1,
si=2
} sync_mode_t;
static void *UE_thread_synch(void *arg) {
int i,hw_slot_offset,CC_id;
PHY_VARS_UE *UE = arg;
int current_band = 0;
int current_offset = 0;
sync_mode_t sync_mode = rssi;
int rssi_lin,rssi_min,rssi_max,rssi_avg;
double rssi_dBm,rssi_min_dBm,rssi_max_dBm;
printf("UE_thread_sync in with PHY_vars_UE %p\n",arg);
#ifdef USRP
......@@ -1793,11 +1857,32 @@ static void *UE_thread_synch(void *arg) {
printf("starting UE synch thread\n");
#endif
if (UE_scan == 1) {
for (card=0;card<MAX_CARDS;card++) {
for (i=0; i<openair0_cfg[card].rx_num_channels; i++) {
downlink_frequency[card][i] = bands_to_scan.band_info[0].dl_min;
uplink_frequency_offset[card][i] = bands_to_scan.band_info[0].ul_min-bands_to_scan.band_info[0].dl_min;
openair0_cfg[card].rx_freq[i] = downlink_frequency[card][i];
openair0_cfg[card].tx_freq[i] = downlink_frequency[card][i]+uplink_frequency_offset[card][i];
openair0_cfg[card].rx_gain[i] = PHY_vars_UE_g[0][0]->rx_total_gain_dB-USRP_GAIN_OFFSET;
#ifdef USRP
#ifndef USRP_DEBUG
openair0_set_frequencies(&openair0,&openair0_cfg[0]);
// openair0_set_gains(&openair0,&openair0_cfg[0]);
#endif
#endif
}
}
LOG_D(PHY,"[SCHED][UE] Scanning band %d, freq %u\n",bands_to_scan.band_info[0].band, bands_to_scan.band_info[0].dl_min);
}
else {
LOG_D(PHY,"[SCHED][UE] Check absolute frequency %u\n",downlink_frequency[0][0]);
}
while (!oai_exit) {
if (pthread_mutex_lock(&UE->mutex_synch) != 0) {
LOG_E(PHY,"[SCHED][eNB] error locking mutex for UE initial synch thread\n");
LOG_E(PHY,"[SCHED][UE] error locking mutex for UE initial synch thread\n");
oai_exit=1;
}
else {
......@@ -1808,9 +1893,62 @@ static void *UE_thread_synch(void *arg) {
LOG_E(PHY,"[SCHED][eNB] error unlocking mutex for UE Initial Synch thread\n");
oai_exit=1;
}
} // mutex_lock
// LOG_I(PHY,"[SCHED][UE] Running UE intial synch\n");
switch (sync_mode) {
case rssi:
rssi_min = 1<<31;
rssi_max = 0;
rssi_avg = 0;
for (i=0;i<76800;i+=7680) {
rssi_lin = signal_energy(&PHY_vars_UE_g[0][0]->lte_ue_common_vars.rxdata[0][i],7680);
if (PHY_vars_UE_g[0][0]->lte_frame_parms.nb_antennas_rx>1)
rssi_lin += signal_energy(&PHY_vars_UE_g[0][0]->lte_ue_common_vars.rxdata[0][i],7680);
rssi_avg += rssi;
rssi_min = (rssi < rssi_min) ? rssi : rssi_min;
rssi_max = (rssi > rssi_max) ? rssi : rssi_max;
}
rssi_dBm = dB_fixed_times10(rssi_avg/10)/10.0 - PHY_vars_UE_g[0][0]->rx_total_gain_dB;
rssi_max_dBm = dB_fixed_times10(rssi_max)/10.0 - PHY_vars_UE_g[0][0]->rx_total_gain_dB;
rssi_min_dBm = dB_fixed_times10(rssi_min)/10.0 - PHY_vars_UE_g[0][0]->rx_total_gain_dB;
LOG_D(PHY,"Band %d, DL Freq %u: RSSI (avg, min, max) %f,%f,%f dBm\n",
bands_to_scan.band_info[current_band].band,
downlink_frequency[0][0],
rssi_dBm,
rssi_min_dBm,
rssi_max_dBm);
current_offset += 100000; // increase by 1 EARFCN (100kHz)
if (current_offset+5000000 > bands_to_scan.band_info[current_band].dl_max-bands_to_scan.band_info[current_band].dl_min) {
current_band++;
current_offset=0;
}
if (current_band==bands_to_scan.nbands) {
current_band=0;
}
for (card=0;card<MAX_CARDS;card++) {
for (i=0; i<openair0_cfg[card].rx_num_channels; i++) {
openair0_cfg[card].rx_freq[i] = downlink_frequency[card][i]+openair_daq_vars.freq_offset;
openair0_cfg[card].tx_freq[i] = downlink_frequency[card][i]+uplink_frequency_offset[card][i]+openair_daq_vars.freq_offset;
openair0_cfg[card].rx_gain[i] = PHY_vars_UE_g[0][0]->rx_total_gain_dB-USRP_GAIN_OFFSET; // 65 calibrated for USRP B210 @ 2.6 GHz
#ifdef USRP
#ifndef USRP_DEBUG
openair0_set_frequencies(&openair0,&openair0_cfg[0]);
// openair0_set_gains(&openair0,&openair0_cfg[0]);
#endif
#endif
}
}
break;
case pbch:
if (initial_sync(PHY_vars_UE_g[0][0],mode)==0) {
/*
lte_adjust_synch(&PHY_vars_UE_g[0]->lte_frame_parms,
......@@ -1859,7 +1997,7 @@ static void *UE_thread_synch(void *arg) {
for (i=0; i<openair0_cfg[card].rx_num_channels; i++) {
openair0_cfg[card].rx_freq[i] = downlink_frequency[card][i]+openair_daq_vars.freq_offset;
openair0_cfg[card].tx_freq[i] = downlink_frequency[card][i]+uplink_frequency_offset[card][i]+openair_daq_vars.freq_offset;
openair0_cfg[card].rx_gain[i] = PHY_vars_UE_g[0][0]->rx_total_gain_dB-82; // 65 calibrated for USRP B210 @ 2.6 GHz
openair0_cfg[card].rx_gain[i] = PHY_vars_UE_g[0][0]->rx_total_gain_dB-USRP_GAIN_OFFSET; // 65 calibrated for USRP B210 @ 2.6 GHz
#ifdef USRP
#ifndef USRP_DEBUG
openair0_set_frequencies(&openair0,&openair0_cfg[0]);
......@@ -1873,9 +2011,14 @@ static void *UE_thread_synch(void *arg) {
// rt_sleep_ns(FRAME_PERIOD);
} // freq_offset
} // initial_sync=0
} // initial_sync=0
break;
case si:
default:
break;
}
if (pthread_mutex_lock(&PHY_vars_UE_g[0][0]->mutex_synch) != 0) {
if (pthread_mutex_lock(&PHY_vars_UE_g[0][0]->mutex_synch) != 0) {
printf("[openair][SCHED][eNB] error locking mutex for UE synch\n");
}
else {
......@@ -1886,8 +2029,8 @@ static void *UE_thread_synch(void *arg) {
}
}
} // while !oai_exit
return(0);
} // while !oai_exit
return(0);
}
static void *UE_thread_tx(void *arg) {
......@@ -1979,14 +2122,14 @@ static void *UE_thread_rx(void *arg) {
PHY_VARS_UE *UE = (PHY_VARS_UE*)arg;
int i;
/*
#ifdef LOWLATENCY
#ifdef LOWLATENCY
struct sched_attr attr;
unsigned int flags = 0;
#endif
#endif
*/
UE->instance_cnt_rx=-1;
/*
#ifdef LOWLATENCY
#ifdef LOWLATENCY
attr.size = sizeof(attr);
attr.sched_flags = 0;
attr.sched_nice = 0;
......@@ -2002,8 +2145,8 @@ static void *UE_thread_rx(void *arg) {
perror("[SCHED] eNB tx thread: sched_setattr failed\n");
exit(-1);
}
#endif
*/
#endif
*/
mlockall(MCL_CURRENT | MCL_FUTURE);
#ifndef EXMIMO
......@@ -2103,12 +2246,12 @@ static void *UE_thread(void *arg) {
void *rxp[2],*txp[2];
/*
#ifdef LOWLATENCY
#ifdef LOWLATENCY
struct sched_attr attr;
unsigned int flags = 0;
unsigned long mask = 1; // processor 0
#endif
*/
#endif
*/
printf("waiting for sync (UE_thread)\n");
#ifdef RTAI
......@@ -2124,7 +2267,7 @@ static void *UE_thread(void *arg) {
printf("starting UE thread\n");
/*
#ifdef LOWLATENCY
#ifdef LOWLATENCY
attr.size = sizeof(attr);
attr.sched_flags = 0;
attr.sched_nice = 0;
......@@ -2148,8 +2291,8 @@ static void *UE_thread(void *arg) {
LOG_I(HW,"[SCHED][eNB] eNB main deadline thread %ld started on CPU %d\n",
gettid(),sched_getcpu());
}
#endif
*/
#endif
*/
mlockall(MCL_CURRENT | MCL_FUTURE);
T0 = rt_get_time_ns();
......@@ -2631,57 +2774,6 @@ void init_UE_threads(void) {
}
#define KHz (1000UL)
#define MHz (1000 * KHz)
typedef struct eutra_band_s {
int16_t band;
uint32_t ul_min;
uint32_t ul_max;
uint32_t dl_min;
uint32_t dl_max;
lte_frame_type_t frame_type;
} eutra_band_t;
typedef struct band_info_s {
int nbands;
eutra_band_t band_info[100];
} band_info_t;
band_info_t bands_to_scan;
static const eutra_band_t eutra_bands[] =
{
{ 1, 1920 * MHz, 1980 * MHz, 2110 * MHz, 2170 * MHz, FDD},
{ 2, 1850 * MHz, 1910 * MHz, 1930 * MHz, 1990 * MHz, FDD},
{ 3, 1710 * MHz, 1785 * MHz, 1805 * MHz, 1880 * MHz, FDD},
{ 4, 1710 * MHz, 1755 * MHz, 2110 * MHz, 2155 * MHz, FDD},
{ 5, 824 * MHz, 849 * MHz, 869 * MHz, 894 * MHz, FDD},
{ 6, 830 * MHz, 840 * MHz, 875 * MHz, 885 * MHz, FDD},
{ 7, 2500 * MHz, 2570 * MHz, 2620 * MHz, 2690 * MHz, FDD},
{ 8, 880 * MHz, 915 * MHz, 925 * MHz, 960 * MHz, FDD},
{ 9, 1749900 * KHz, 1784900 * KHz, 1844900 * KHz, 1879900 * KHz, FDD},
{10, 1710 * MHz, 1770 * MHz, 2110 * MHz, 2170 * MHz, FDD},
{11, 1427900 * KHz, 1452900 * KHz, 1475900 * KHz, 1500900 * KHz, FDD},
{12, 698 * MHz, 716 * MHz, 728 * MHz, 746 * MHz, FDD},
{13, 777 * MHz, 787 * MHz, 746 * MHz, 756 * MHz, FDD},
{14, 788 * MHz, 798 * MHz, 758 * MHz, 768 * MHz, FDD},
{17, 704 * MHz, 716 * MHz, 734 * MHz, 746 * MHz, FDD},
{33, 1900 * MHz, 1920 * MHz, 1900 * MHz, 1920 * MHz, TDD},
{34, 2010 * MHz, 2025 * MHz, 2010 * MHz, 2025 * MHz, TDD},
{35, 1850 * MHz, 1910 * MHz, 1850 * MHz, 1910 * MHz, TDD},
{36, 1930 * MHz, 1990 * MHz, 1930 * MHz, 1990 * MHz, TDD},
{37, 1910 * MHz, 1930 * MHz, 1910 * MHz, 1930 * MHz, TDD},
{38, 2570 * MHz, 2620 * MHz, 2570 * MHz, 2630 * MHz, TDD},
{39, 1880 * MHz, 1920 * MHz, 1880 * MHz, 1920 * MHz, TDD},
{40, 2300 * MHz, 2400 * MHz, 2300 * MHz, 2400 * MHz, TDD},
{41, 2496 * MHz, 2690 * MHz, 2496 * MHz, 2690 * MHz, TDD},
{42, 3400 * MHz, 3600 * MHz, 3400 * MHz, 3600 * MHz, TDD},
{43, 3600 * MHz, 3800 * MHz, 3600 * MHz, 3800 * MHz, TDD},
{44, 703 * MHz, 803 * MHz, 703 * MHz, 803 * MHz, TDD},
};
void fill_ue_band_info() {
......@@ -2797,6 +2889,7 @@ static void get_options (int argc, char **argv) {
downlink_frequency[CC_id][3] = downlink_frequency[CC_id][0];
printf("Downlink for CC_id %d frequency set to %u\n", CC_id, downlink_frequency[CC_id][0]);
}
UE_scan=0;
break;
case 'd':
......@@ -3495,7 +3588,7 @@ int main(int argc, char **argv) {
openair0_cfg[card].tx_gain[i] = tx_gain[0][i];
openair0_cfg[card].rx_gain[i] = ((UE_flag==0) ? PHY_vars_eNB_g[0][0]->rx_total_gain_eNB_dB :
PHY_vars_UE_g[0][0]->rx_total_gain_dB) - 82.0; // calibrated for USRP B210 @ 2.6 GHz
PHY_vars_UE_g[0][0]->rx_total_gain_dB) - USRP_GAIN_OFFSET; // calibrated for USRP B210 @ 2.6 GHz
openair0_cfg[card].tx_freq[i] = (UE_flag==0) ? downlink_frequency[0][i] : downlink_frequency[0][i]+uplink_frequency_offset[0][i];
openair0_cfg[card].rx_freq[i] = (UE_flag==0) ? downlink_frequency[0][i] + uplink_frequency_offset[0][i] : downlink_frequency[0][i];
printf("Setting tx_gain %f, rx_gain %f, tx_freq %f, rx_freq %f\n",
......
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