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Commit fa2f2f4e authored by Daniel0326's avatar Daniel0326
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Need to fix lte-enb.c

parent ce1ea555
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Showing with 199 additions and 15 deletions
cmake_targets/CMakeLists.txt
View file @ fa2f2f4e
......@@ -2141,7 +2141,6 @@ add_definitions(-DASN1_MINIMUM_VERSION=924)
add_executable(lte-softmodem
${OPENAIR_TARGETS}/RT/USER/rt_wrapper.c
${OPENAIR_TARGETS}/RT/USER/lte-enb.c
${OPENAIR_TARGETS}/RT/USER/lte-enb-nbiot.c
${OPENAIR_TARGETS}/RT/USER/lte-ru.c
${OPENAIR_TARGETS}/RT/USER/ru_control.c
${OPENAIR_TARGETS}/RT/USER/lte-softmodem.c
......
openair1/PHY/defs_eNB.h
View file @ fa2f2f4e
......@@ -759,7 +759,12 @@ typedef struct {
/// mutex for RXn-TXnp4 processing thread
pthread_mutex_t mutex_RUs;
uint16_t HFN;
uint16_t HFN; //NB-IoT
/// mutex for RXn-TXnp4 processing thread
pthread_mutex_t mutex_rxtx; //NB-IoT
int instance_cnt_rxtx;
} L1_rxtx_proc_t;
typedef struct {
......
targets/RT/USER/lte-enb.c
View file @ fa2f2f4e
......@@ -112,6 +112,25 @@ unsigned short config_frames[4] = {2,9,11,13};
#include "T.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sched.h>
#include <linux/sched.h>
#include <signal.h>
#include <execinfo.h>
#include <getopt.h>
#include <sys/sysinfo.h>
#include "msc.h"
#include "../../SIMU/USER/init_lte.h"
#include "SCHED/sched_common.h" // for calling prach_procedures_NB_IoT()
//#define DEBUG_THREADS 1
//#define USRP_DEBUG 1
......@@ -155,7 +174,12 @@ static struct {
extern double cpuf;
/*******************************************************For NB-IoT************************************************************/
void init_eNB_NB_IoT(eNB_func_NB_IoT_t node_function[], eNB_timing_NB_IoT_t node_timing[],int nb_inst,eth_params_t *,int,int);
extern void eNB_fep_rru_if5(PHY_VARS_eNB_NB_IoT *eNB,L1_rxtx_proc_t *proc);
extern void eNB_fep_full(PHY_VARS_eNB_NB_IoT *eNB,L1_rxtx_proc_t *proc);
extern void eNB_fep_full_2thread(PHY_VARS_eNB_NB_IoT *eNB,L1_rxtx_proc_t *proc);
extern void do_prach(PHY_VARS_eNB_NB_IoT *eNB,int frame,int subframe);
//Modify for NB-IoT merge
......@@ -220,7 +244,7 @@ static inline int rxtx_NB_IoT(PHY_VARS_eNB_NB_IoT *eNB,L1_rxtx_proc_t *proc, cha
static void* eNB_thread_prach_NB_IoT( void* param ) {
static int eNB_thread_prach_status;
PHY_VARS_eNB *eNB= (PHY_VARS_eNB *)param;
PHY_VARS_eNB_NB_IoT *eNB= (PHY_VARS_eNB_NB_IoT *)param;
L1_proc_t *proc = &eNB->proc;
// set default return value
......@@ -248,7 +272,7 @@ static void* eNB_thread_prach_NB_IoT( void* param ) {
eNB_thread_prach_status = 0;
return &eNB_thread_prach_status;
}
/*******************************************************For NB-IoT************************************************************/
void init_eNB(int,int);
......@@ -1519,14 +1543,14 @@ void stop_eNB(int nb_inst) {
/*******************************************************************For NB-IoT********************************************************************/
///Modify to NB-IoT merge
void init_eNB_NB_IoT(eNB_func_NB_IoT_t node_function[], eNB_timing_NB_IoT_t node_timing[],int nb_inst,eth_params_t *eth_params,int single_thread_flag,int wait_for_sync) {
int CC_id;
int inst;
PHY_VARS_eNB *eNB;
PHY_VARS_eNB_NB_IoT *eNB;
int ret;
for (inst=0;inst<nb_inst;inst++) {
......@@ -1544,9 +1568,9 @@ void init_eNB_NB_IoT(eNB_func_NB_IoT_t node_function[], eNB_timing_NB_IoT_t node
/////// IF-Module initialization ///////////////
LOG_I(PHY,"Registering with MAC interface module start\n");
AssertFatal((eNB->if_inst = IF_Module_init_NB_IoT(inst))!=NULL,"Cannot register interface");
eNB->if_inst->schedule_response = schedule_response_NB_IoT;
eNB->if_inst->PHY_config_req = PHY_config_req_NB_IoT;
AssertFatal((eNB->if_inst_NB_IoT = IF_Module_init_NB_IoT(inst))!=NULL,"Cannot register interface");
eNB->if_inst_NB_IoT->schedule_response = schedule_response_NB_IoT;
eNB->if_inst_NB_IoT->PHY_config_req = PHY_config_req_NB_IoT;
LOG_I(PHY,"Registering with MAC interface module sucessfully\n");
......@@ -1555,7 +1579,7 @@ void init_eNB_NB_IoT(eNB_func_NB_IoT_t node_function[], eNB_timing_NB_IoT_t node
#endif
switch (node_function[CC_id]) {
case NGFI_RRU_IF5:
case NGFI_RRU_IF5_NB_IoT:
eNB->do_prach = NULL;
eNB->do_precoding = 0;
eNB->fep = eNB_fep_rru_if5;
......@@ -1585,7 +1609,7 @@ void init_eNB_NB_IoT(eNB_func_NB_IoT_t node_function[], eNB_timing_NB_IoT_t node
}
malloc_IF5_buffer(eNB);
break;
case NGFI_RRU_IF4p5:
case NGFI_RRU_IF4p5_NB_IoT:
eNB->do_precoding = 0;
eNB->do_prach = do_prach;
eNB->fep = eNB_fep_full;//(single_thread_flag==1) ? eNB_fep_full_2thread : eNB_fep_full;
......@@ -1618,7 +1642,7 @@ void init_eNB_NB_IoT(eNB_func_NB_IoT_t node_function[], eNB_timing_NB_IoT_t node
malloc_IF4p5_buffer(eNB);
break;
case eNodeB_3GPP:
case eNodeB_3GPP_NB_IoT:
eNB->do_precoding = eNB->frame_parms.nb_antennas_tx!=eNB->frame_parms.nb_antenna_ports_eNB;
eNB->do_prach = do_prach;
eNB->fep = eNB_fep_full;//(single_thread_flag==1) ? eNB_fep_full_2thread : eNB_fep_full;
......@@ -1644,7 +1668,7 @@ void init_eNB_NB_IoT(eNB_func_NB_IoT_t node_function[], eNB_timing_NB_IoT_t node
eNB->rfdevice.host_type = BBU_HOST;
eNB->ifdevice.host_type = BBU_HOST;
break;
case eNodeB_3GPP_BBU:
case eNodeB_3GPP_BBU_NB_IoT:
eNB->do_precoding = eNB->frame_parms.nb_antennas_tx!=eNB->frame_parms.nb_antenna_ports_eNB;
eNB->do_prach = do_prach;
eNB->fep = eNB_fep_full;//(single_thread_flag==1) ? eNB_fep_full_2thread : eNB_fep_full;
......@@ -1678,7 +1702,7 @@ void init_eNB_NB_IoT(eNB_func_NB_IoT_t node_function[], eNB_timing_NB_IoT_t node
}
malloc_IF5_buffer(eNB);
break;
case NGFI_RCC_IF4p5:
case NGFI_RCC_IF4p5_NB_IoT:
eNB->do_precoding = 0;
eNB->do_prach = do_prach;
eNB->fep = NULL;
......@@ -1702,7 +1726,7 @@ void init_eNB_NB_IoT(eNB_func_NB_IoT_t node_function[], eNB_timing_NB_IoT_t node
malloc_IF4p5_buffer(eNB);
break;
case NGFI_RAU_IF4p5:
case NGFI_RAU_IF4p5_NB_IoT:
eNB->do_precoding = 0;
eNB->do_prach = do_prach;
eNB->fep = NULL;
......@@ -1745,3 +1769,159 @@ void init_eNB_NB_IoT(eNB_func_NB_IoT_t node_function[], eNB_timing_NB_IoT_t node
}
////
void rx_rf(PHY_VARS_eNB_NB_IoT *eNB,int *frame,int *subframe) {
eNB_proc_t *proc = &eNB->proc;
LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
void *rxp[fp->nb_antennas_rx],*txp[fp->nb_antennas_tx];
unsigned int rxs,txs;
int i;
int tx_sfoffset = (eNB->single_thread_flag == 1) ? 3 : 2;
openair0_timestamp ts,old_ts;
if (proc->first_rx==0) {
// Transmit TX buffer based on timestamp from RX
// printf("trx_write -> USRP TS %llu (sf %d)\n", (proc->timestamp_rx+(3*fp->samples_per_tti)),(proc->subframe_rx+2)%10);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (proc->timestamp_rx+(tx_sfoffset*fp->samples_per_tti)-openair0_cfg[0].tx_sample_advance)&0xffffffff );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
// prepare tx buffer pointers
lte_subframe_t SF_type = subframe_select(fp,(proc->subframe_rx+tx_sfoffset)%10);
lte_subframe_t prevSF_type = subframe_select(fp,(proc->subframe_rx+tx_sfoffset+9)%10);
lte_subframe_t nextSF_type = subframe_select(fp,(proc->subframe_rx+tx_sfoffset+1)%10);
if ((SF_type == SF_DL) ||
(SF_type == SF_S)) {
for (i=0; i<fp->nb_antennas_tx; i++)
txp[i] = (void*)&eNB->common_vars.txdata[0][i][((proc->subframe_rx+tx_sfoffset)%10)*fp->samples_per_tti];
int siglen=fp->samples_per_tti,flags=1;
if (SF_type == SF_S) {
siglen = fp->dl_symbols_in_S_subframe*(fp->ofdm_symbol_size+fp->nb_prefix_samples0);
flags=3; // end of burst
}
if ((fp->frame_type == TDD) &&
(SF_type == SF_DL)&&
(prevSF_type == SF_UL) &&
(nextSF_type == SF_DL))
flags = 2; // start of burst
if ((fp->frame_type == TDD) &&
(SF_type == SF_DL)&&
(prevSF_type == SF_UL) &&
(nextSF_type == SF_UL))
flags = 4; // start of burst and end of burst (only one DL SF between two UL)
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_WRITE_FLAGS,flags);
txs = eNB->rfdevice.trx_write_func(&eNB->rfdevice,
proc->timestamp_rx+eNB->ts_offset+(tx_sfoffset*fp->samples_per_tti)-openair0_cfg[0].tx_sample_advance,
txp,
siglen,
fp->nb_antennas_tx,
flags);
clock_gettime( CLOCK_MONOTONIC, &end_rf);
end_rf_ts = proc->timestamp_rx+eNB->ts_offset+(tx_sfoffset*fp->samples_per_tti)-openair0_cfg[0].tx_sample_advance;
if (recv_if_count != 0 ) {
recv_if_count = recv_if_count-1;
LOG_D(HW,"[From Timestamp %"PRId64" to Timestamp %"PRId64"] RTT_RF: %"PRId64"; RTT_RF\n", start_rf_prev_ts, end_rf_ts, clock_difftime_ns(start_rf_prev, end_rf));
LOG_D(HW,"[From Timestamp %"PRId64" to Timestamp %"PRId64"] RTT_RF: %"PRId64"; RTT_RF\n",start_rf_prev2_ts, end_rf_ts, clock_difftime_ns(start_rf_prev2, end_rf));
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 0 );
if (txs != siglen) {
LOG_E(PHY,"TX : Timeout (sent %d/%d)\n",txs, fp->samples_per_tti);
exit_fun( "problem transmitting samples" );
}
}
}
for (i=0; i<fp->nb_antennas_rx; i++)
rxp[i] = (void*)&eNB->common_vars.rxdata[0][i][*subframe*fp->samples_per_tti];
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 1 );
old_ts = proc->timestamp_rx;
rxs = eNB->rfdevice.trx_read_func(&eNB->rfdevice,
&ts,
rxp,
fp->samples_per_tti,
fp->nb_antennas_rx);
start_rf_prev2= start_rf_prev;
start_rf_prev2_ts= start_rf_prev_ts;
start_rf_prev = start_rf_new;
start_rf_prev_ts = start_rf_new_ts;
clock_gettime( CLOCK_MONOTONIC, &start_rf_new);
start_rf_new_ts = ts;
LOG_D(PHY,"rx_rf: first_rx %d received ts %"PRId64" (sptti %d)\n",proc->first_rx,ts,fp->samples_per_tti);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 0 );
proc->timestamp_rx = ts-eNB->ts_offset;
if (rxs != fp->samples_per_tti)
LOG_E(PHY,"rx_rf: Asked for %d samples, got %d from USRP\n",fp->samples_per_tti,rxs);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 0 );
if (proc->first_rx == 1) {
eNB->ts_offset = proc->timestamp_rx;
proc->timestamp_rx=0;
}
else {
if (proc->timestamp_rx - old_ts != fp->samples_per_tti) {
LOG_I(PHY,"rx_rf: rfdevice timing drift of %"PRId64" samples (ts_off %"PRId64")\n",proc->timestamp_rx - old_ts - fp->samples_per_tti,eNB->ts_offset);
eNB->ts_offset += (proc->timestamp_rx - old_ts - fp->samples_per_tti);
proc->timestamp_rx = ts-eNB->ts_offset;
}
}
proc->frame_rx = (proc->timestamp_rx / (fp->samples_per_tti*10))&1023;
proc->subframe_rx = (proc->timestamp_rx / fp->samples_per_tti)%10;
proc->frame_rx = (proc->frame_rx+proc->frame_offset)&1023;
proc->frame_tx = proc->frame_rx;
if (proc->subframe_rx > 5) proc->frame_tx=(proc->frame_tx+1)&1023;
// synchronize first reception to frame 0 subframe 0
proc->timestamp_tx = proc->timestamp_rx+(4*fp->samples_per_tti);
// printf("trx_read <- USRP TS %lu (offset %d sf %d, f %d, first_rx %d)\n", proc->timestamp_rx,eNB->ts_offset,proc->subframe_rx,proc->frame_rx,proc->first_rx);
if (proc->first_rx == 0) {
if (proc->subframe_rx != *subframe){
LOG_E(PHY,"rx_rf: Received Timestamp (%"PRId64") doesn't correspond to the time we think it is (proc->subframe_rx %d, subframe %d)\n",proc->timestamp_rx,proc->subframe_rx,*subframe);
exit_fun("Exiting");
}
int f2 = (*frame+proc->frame_offset)&1023;
if (proc->frame_rx != f2) {
LOG_E(PHY,"rx_rf: Received Timestamp (%"PRId64") doesn't correspond to the time we think it is (proc->frame_rx %d frame %d, frame_offset %d, f2 %d)\n",proc->timestamp_rx,proc->frame_rx,*frame,proc->frame_offset,f2);
exit_fun("Exiting");
}
} else {
proc->first_rx--;
*frame = proc->frame_rx;
*subframe = proc->subframe_rx;
}
//printf("timestamp_rx %lu, frame %d(%d), subframe %d(%d)\n",proc->timestamp_rx,proc->frame_rx,frame,proc->subframe_rx,subframe);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TS, proc->timestamp_rx&0xffffffff );
if (rxs != fp->samples_per_tti)
exit_fun( "problem receiving samples" );
}
int start_rf(PHY_VARS_eNB_NB_IoT *eNB) {
return(eNB->rfdevice.trx_start_func(&eNB->rfdevice));
}
int start_if(PHY_VARS_eNB_NB_IoT *eNB) {
return(eNB->ifdevice.trx_start_func(&eNB->ifdevice));
}
/*******************************************************************For NB-IoT********************************************************************/
\ No newline at end of file
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