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openairinterface5g/executables/nr-uesoftmodem.c
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <sched.h>
#include "T.h"
#include "assertions.h"
#include "PHY/types.h"
#include "PHY/defs_nr_UE.h"
#include "SCHED_NR_UE/defs.h"
#include "common/ran_context.h"
#include "common/config/config_userapi.h"
//#include "common/utils/threadPool/thread-pool.h"
#include "common/utils/load_module_shlib.h"
//#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all
#include "common/utils/nr/nr_common.h"
#include "../../ARCH/COMMON/common_lib.h"
#include "../../ARCH/ETHERNET/USERSPACE/LIB/if_defs.h"
//#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all
#include "openair1/PHY/MODULATION/nr_modulation.h"
#include "PHY/phy_vars_nr_ue.h"
#include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h"
#include "SCHED/sched_common_vars.h"
#include "PHY/MODULATION/modulation_vars.h"
#include "PHY/NR_TRANSPORT/nr_dlsch.h"
//#include "../../SIMU/USER/init_lte.h"
#include "LAYER2/MAC/mac_vars.h"
#include "RRC/LTE/rrc_vars.h"
#include "PHY_INTERFACE/phy_interface_vars.h"
#include "openair1/SIMULATION/TOOLS/sim.h"
#ifdef SMBV
#include "PHY/TOOLS/smbv.h"
unsigned short config_frames[4] = {2,9,11,13};
#endif
#include "common/utils/LOG/log.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "enb_config.h"
//#include "PHY/TOOLS/time_meas.h"
#include "intertask_interface.h"
#include "PHY/INIT/phy_init.h"
#include "system.h"
#include <openair2/RRC/NR_UE/rrc_proto.h>
#include <openair2/LAYER2/NR_MAC_UE/mac_defs.h>
#include <openair2/LAYER2/NR_MAC_UE/mac_proto.h>
#include <openair2/NR_UE_PHY_INTERFACE/NR_IF_Module.h>
#include <openair1/SCHED_NR_UE/fapi_nr_ue_l1.h>
/* Callbacks, globals and object handlers */
//#include "stats.h"
// current status is that every UE has a DL scope for a SINGLE eNB (eNB_id=0)
#include "PHY/TOOLS/phy_scope_interface.h"
#include "PHY/TOOLS/nr_phy_scope.h"
#include <executables/nr-uesoftmodem.h>
#include "executables/softmodem-common.h"
#include "executables/thread-common.h"
#include "nr_nas_msg_sim.h"
extern const char *duplex_mode[];
THREAD_STRUCT thread_struct;
nrUE_params_t nrUE_params;
// Thread variables
pthread_cond_t nfapi_sync_cond;
pthread_mutex_t nfapi_sync_mutex;
int nfapi_sync_var=-1; //!< protected by mutex \ref nfapi_sync_mutex
uint16_t sf_ahead=6; //??? value ???
pthread_cond_t sync_cond;
pthread_mutex_t sync_mutex;
int sync_var=-1; //!< protected by mutex \ref sync_mutex.
int config_sync_var=-1;
// not used in UE
instance_t CUuniqInstance=0;
instance_t DUuniqInstance=0;
RAN_CONTEXT_t RC;
volatile int oai_exit = 0;
extern int16_t nr_dlsch_demod_shift;
static int tx_max_power[MAX_NUM_CCs] = {0};
int single_thread_flag = 1;
int tddflag = 0;
int vcdflag = 0;
double rx_gain_off = 0.0;
char *usrp_args = NULL;
char *rrc_config_path = NULL;
int dumpframe = 0;
uint64_t downlink_frequency[MAX_NUM_CCs][4];
int32_t uplink_frequency_offset[MAX_NUM_CCs][4];
int rx_input_level_dBm;
#if MAX_NUM_CCs == 1
rx_gain_t rx_gain_mode[MAX_NUM_CCs][4] = {{max_gain,max_gain,max_gain,max_gain}};
double tx_gain[MAX_NUM_CCs][4] = {{20,0,0,0}};
double rx_gain[MAX_NUM_CCs][4] = {{110,0,0,0}};
#else
rx_gain_t rx_gain_mode[MAX_NUM_CCs][4] = {{max_gain,max_gain,max_gain,max_gain},{max_gain,max_gain,max_gain,max_gain}};
double tx_gain[MAX_NUM_CCs][4] = {{20,0,0,0},{20,0,0,0}};
double rx_gain[MAX_NUM_CCs][4] = {{110,0,0,0},{20,0,0,0}};
#endif
// UE and OAI config variables
openair0_config_t openair0_cfg[MAX_CARDS];
int16_t node_synch_ref[MAX_NUM_CCs];
int otg_enabled;
double cpuf;
int chain_offset = 0;
int card_offset = 0;
uint64_t num_missed_slots = 0; // counter for the number of missed slots
int transmission_mode = 1;
int numerology = 0;
int oaisim_flag = 0;
int emulate_rf = 0;
uint32_t N_RB_DL = 106;
char uecap_xer_in = 0;
char uecap_xer[1024];
/* see file openair2/LAYER2/MAC/main.c for why abstraction_flag is needed
* this is very hackish - find a proper solution
*/
uint8_t abstraction_flag=0;
/*---------------------BMC: timespec helpers -----------------------------*/
struct timespec min_diff_time = { .tv_sec = 0, .tv_nsec = 0 };
struct timespec max_diff_time = { .tv_sec = 0, .tv_nsec = 0 };
struct timespec clock_difftime(struct timespec start, struct timespec end) {
struct timespec temp;
if ((end.tv_nsec-start.tv_nsec)<0) {
temp.tv_sec = end.tv_sec-start.tv_sec-1;
temp.tv_nsec = 1000000000+end.tv_nsec-start.tv_nsec;
} else {
temp.tv_sec = end.tv_sec-start.tv_sec;
temp.tv_nsec = end.tv_nsec-start.tv_nsec;
}
return temp;
}
void print_difftimes(void) {
LOG_I(HW,"difftimes min = %lu ns ; max = %lu ns\n", min_diff_time.tv_nsec, max_diff_time.tv_nsec);
}
int create_tasks_nrue(uint32_t ue_nb) {
LOG_D(NR_RRC, "%s(ue_nb:%d)\n", __FUNCTION__, ue_nb);
itti_wait_ready(1);
if (ue_nb > 0) {
LOG_I(NR_RRC,"create TASK_RRC_NRUE \n");
if (itti_create_task (TASK_RRC_NRUE, rrc_nrue_task, NULL) < 0) {
LOG_E(NR_RRC, "Create task for RRC UE failed\n");
return -1;
}
if (get_softmodem_params()->nsa) {
init_connections_with_lte_ue();
if (itti_create_task (TASK_RRC_NSA_NRUE, recv_msgs_from_lte_ue, NULL) < 0) {
LOG_E(NR_RRC, "Create task for RRC NSA nr-UE failed\n");
return -1;
}
}
if (itti_create_task (TASK_NAS_NRUE, nas_nrue_task, NULL) < 0) {
LOG_E(NR_RRC, "Create task for NAS UE failed\n");
return -1;
}
}
itti_wait_ready(0);
return 0;
}
void exit_function(const char *file, const char *function, const int line, const char *s) {
int CC_id;
if (s != NULL) {
printf("%s:%d %s() Exiting OAI softmodem: %s\n",file,line, function, s);
}
oai_exit = 1;
if (PHY_vars_UE_g && PHY_vars_UE_g[0]) {
for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
if (PHY_vars_UE_g[0][CC_id] && PHY_vars_UE_g[0][CC_id]->rfdevice.trx_end_func)
PHY_vars_UE_g[0][CC_id]->rfdevice.trx_end_func(&PHY_vars_UE_g[0][CC_id]->rfdevice);
}
}
sleep(1); //allow lte-softmodem threads to exit first
exit(1);
}
uint64_t get_nrUE_optmask(void) {
return nrUE_params.optmask;
}
uint64_t set_nrUE_optmask(uint64_t bitmask) {
nrUE_params.optmask = nrUE_params.optmask | bitmask;
return nrUE_params.optmask;
}
nrUE_params_t *get_nrUE_params(void) {
return &nrUE_params;
}
/* initialie thread pools used for NRUE processing paralleliation */
void init_tpools(uint8_t nun_dlsch_threads) {
char *params = NULL;
params = calloc(1,(NR_RX_NB_TH*NR_NB_TH_SLOT*3)+1);
for (int i=0; i<NR_RX_NB_TH*NR_NB_TH_SLOT; i++) {
memcpy(params+(i*3),"-1,",3);
}
initTpool(params, &(nrUE_params.Tpool), false);
free(params);
init_dlsch_tpool( nun_dlsch_threads);
}
static void get_options(void) {
nrUE_params.ofdm_offset_divisor = 8;
paramdef_t cmdline_params[] =CMDLINE_NRUEPARAMS_DESC ;
int numparams = sizeof(cmdline_params)/sizeof(paramdef_t);
config_process_cmdline( cmdline_params,numparams,NULL);
if (vcdflag > 0)
ouput_vcd = 1;
if ( !(CONFIG_ISFLAGSET(CONFIG_ABORT)) && (!(CONFIG_ISFLAGSET(CONFIG_NOOOPT))) ) {
// Here the configuration file is the XER encoded UE capabilities
// Read it in and store in asn1c data structures
sprintf(uecap_xer,"%stargets/PROJECTS/GENERIC-LTE-EPC/CONF/UE_config.xml",getenv("OPENAIR_HOME"));
printf("%s\n",uecap_xer);
uecap_xer_in=1;
} /* UE with config file */
}
// set PHY vars from command line
void set_options(int CC_id, PHY_VARS_NR_UE *UE){
NR_DL_FRAME_PARMS *fp = &UE->frame_parms;
paramdef_t cmdline_params[] = CMDLINE_NRUE_PHYPARAMS_DESC ;
int numparams = sizeof(cmdline_params)/sizeof(paramdef_t);
UE->mode = normal_txrx;
config_get(cmdline_params,numparams,NULL);
int pindex = config_paramidx_fromname(cmdline_params,numparams, CALIBRX_OPT);
if ( (cmdline_params[pindex].paramflags & PARAMFLAG_PARAMSET) != 0) UE->mode = rx_calib_ue;
pindex = config_paramidx_fromname(cmdline_params,numparams, CALIBRXMED_OPT);
if ( (cmdline_params[pindex].paramflags & PARAMFLAG_PARAMSET) != 0) UE->mode = rx_calib_ue_med;
pindex = config_paramidx_fromname(cmdline_params,numparams, CALIBRXBYP_OPT);
if ( (cmdline_params[pindex].paramflags & PARAMFLAG_PARAMSET) != 0) UE->mode = rx_calib_ue_byp;
pindex = config_paramidx_fromname(cmdline_params,numparams, DBGPRACH_OPT);
if (cmdline_params[pindex].uptr)
if ( *(cmdline_params[pindex].uptr) > 0) UE->mode = debug_prach;
pindex = config_paramidx_fromname(cmdline_params,numparams,NOL2CONNECT_OPT );
if (cmdline_params[pindex].uptr)
if ( *(cmdline_params[pindex].uptr) > 0) UE->mode = no_L2_connect;
pindex = config_paramidx_fromname(cmdline_params,numparams,CALIBPRACH_OPT );
if (cmdline_params[pindex].uptr)
if ( *(cmdline_params[pindex].uptr) > 0) UE->mode = calib_prach_tx;
pindex = config_paramidx_fromname(cmdline_params,numparams,DUMPFRAME_OPT );
if ((cmdline_params[pindex].paramflags & PARAMFLAG_PARAMSET) != 0)
UE->mode = rx_dump_frame;
// Init power variables
tx_max_power[CC_id] = tx_max_power[0];
rx_gain[0][CC_id] = rx_gain[0][0];
tx_gain[0][CC_id] = tx_gain[0][0];
// Set UE variables
UE->rx_total_gain_dB = (int)rx_gain[CC_id][0] + rx_gain_off;
UE->tx_total_gain_dB = (int)tx_gain[CC_id][0];
UE->tx_power_max_dBm = tx_max_power[CC_id];
UE->rf_map.card = card_offset;
UE->rf_map.chain = CC_id + chain_offset;
LOG_I(PHY,"Set UE mode %d, UE_fo_compensation %d, UE_scan_carrier %d, UE_no_timing_correction %d \n, do_prb_interpolation %d\n",
UE->mode, UE->UE_fo_compensation, UE->UE_scan_carrier, UE->no_timing_correction, UE->prb_interpolation);
// Set FP variables
if (tddflag){
fp->frame_type = TDD;
LOG_I(PHY, "Set UE frame_type %d\n", fp->frame_type);
}
LOG_I(PHY, "Set UE nb_rx_antenna %d, nb_tx_antenna %d, threequarter_fs %d, ssb_start_subcarrier %d\n", fp->nb_antennas_rx, fp->nb_antennas_tx, fp->threequarter_fs, fp->ssb_start_subcarrier);
fp->ofdm_offset_divisor = nrUE_params.ofdm_offset_divisor;
}
void init_openair0(void) {
int card;
int freq_off = 0;
NR_DL_FRAME_PARMS *frame_parms = &PHY_vars_UE_g[0][0]->frame_parms;
for (card=0; card<MAX_CARDS; card++) {
uint64_t dl_carrier, ul_carrier;
openair0_cfg[card].configFilename = NULL;
openair0_cfg[card].threequarter_fs = frame_parms->threequarter_fs;
openair0_cfg[card].sample_rate = frame_parms->samples_per_subframe * 1e3;
openair0_cfg[card].samples_per_frame = frame_parms->samples_per_frame;
if (frame_parms->frame_type==TDD)
openair0_cfg[card].duplex_mode = duplex_mode_TDD;
else
openair0_cfg[card].duplex_mode = duplex_mode_FDD;
openair0_cfg[card].Mod_id = 0;
openair0_cfg[card].num_rb_dl = frame_parms->N_RB_DL;
openair0_cfg[card].clock_source = get_softmodem_params()->clock_source;
openair0_cfg[card].time_source = get_softmodem_params()->timing_source;
openair0_cfg[card].tx_num_channels = min(4, frame_parms->nb_antennas_tx);
openair0_cfg[card].rx_num_channels = min(4, frame_parms->nb_antennas_rx);
LOG_I(PHY, "HW: Configuring card %d, sample_rate %f, tx/rx num_channels %d/%d, duplex_mode %s\n",
card,
openair0_cfg[card].sample_rate,
openair0_cfg[card].tx_num_channels,
openair0_cfg[card].rx_num_channels,
duplex_mode[openair0_cfg[card].duplex_mode]);
nr_get_carrier_frequencies(PHY_vars_UE_g[0][0], &dl_carrier, &ul_carrier);
nr_rf_card_config_freq(&openair0_cfg[card], ul_carrier, dl_carrier, freq_off);
nr_rf_card_config_gain(&openair0_cfg[card], rx_gain_off);
openair0_cfg[card].configFilename = get_softmodem_params()->rf_config_file;
if (usrp_args) openair0_cfg[card].sdr_addrs = usrp_args;
}
}
static void init_pdcp(int ue_id) {
uint32_t pdcp_initmask = (!IS_SOFTMODEM_NOS1) ? LINK_ENB_PDCP_TO_GTPV1U_BIT : (LINK_ENB_PDCP_TO_GTPV1U_BIT | PDCP_USE_NETLINK_BIT | LINK_ENB_PDCP_TO_IP_DRIVER_BIT);
/*if (IS_SOFTMODEM_BASICSIM || IS_SOFTMODEM_RFSIM || (nfapi_getmode()==NFAPI_UE_STUB_PNF)) {
pdcp_initmask = pdcp_initmask | UE_NAS_USE_TUN_BIT;
}*/
if (IS_SOFTMODEM_NOKRNMOD) {
pdcp_initmask = pdcp_initmask | UE_NAS_USE_TUN_BIT;
}
if (get_softmodem_params()->nsa && rlc_module_init(0) != 0) {
LOG_I(RLC, "Problem at RLC initiation \n");
}
pdcp_layer_init();
nr_pdcp_module_init(pdcp_initmask, ue_id);
pdcp_set_rlc_data_req_func((send_rlc_data_req_func_t) rlc_data_req);
pdcp_set_pdcp_data_ind_func((pdcp_data_ind_func_t) pdcp_data_ind);
}
// Stupid function addition because UE itti messages queues definition is common with eNB
void *rrc_enb_process_msg(void *notUsed) {
return NULL;
}
int main( int argc, char **argv ) {
set_priority(79);
if (mlockall(MCL_CURRENT | MCL_FUTURE) == -1)
{
fprintf(stderr, "mlockall: %s\n", strerror(errno));
return EXIT_FAILURE;
}
//uint8_t beta_ACK=0,beta_RI=0,beta_CQI=2;
PHY_VARS_NR_UE *UE[MAX_NUM_CCs];
start_background_system();
if ( load_configmodule(argc,argv,CONFIG_ENABLECMDLINEONLY) == NULL) {
exit_fun("[SOFTMODEM] Error, configuration module init failed\n");
}
set_softmodem_sighandler();
CONFIG_SETRTFLAG(CONFIG_NOEXITONHELP);
memset(openair0_cfg,0,sizeof(openair0_config_t)*MAX_CARDS);
memset(tx_max_power,0,sizeof(int)*MAX_NUM_CCs);
// initialize logging
logInit();
// get options and fill parameters from configuration file
get_options (); //Command-line options specific for NRUE
get_common_options(SOFTMODEM_5GUE_BIT);
init_tpools(nrUE_params.nr_dlsch_parallel);
CONFIG_CLEARRTFLAG(CONFIG_NOEXITONHELP);
#if T_TRACER
T_Config_Init();
#endif
//randominit (0);
set_taus_seed (0);
cpuf=get_cpu_freq_GHz();
itti_init(TASK_MAX, tasks_info);
init_opt() ;
load_nrLDPClib(NULL);
if (ouput_vcd) {
vcd_signal_dumper_init("/tmp/openair_dump_nrUE.vcd");
}
#ifndef PACKAGE_VERSION
# define PACKAGE_VERSION "UNKNOWN-EXPERIMENTAL"
#endif
LOG_I(HW, "Version: %s\n", PACKAGE_VERSION);
init_NR_UE(1,rrc_config_path);
int mode_offset = get_softmodem_params()->nsa ? NUMBER_OF_UE_MAX : 1;
uint16_t node_number = get_softmodem_params()->node_number;
ue_id_g = (node_number == 0) ? 0 : node_number - 2;
AssertFatal(ue_id_g >= 0, "UE id is expected to be nonnegative.\n");
if(IS_SOFTMODEM_NOS1 || get_softmodem_params()->sa || get_softmodem_params()->nsa) {
if(node_number == 0) {
init_pdcp(0);
}
else {
init_pdcp(mode_offset + ue_id_g);
}
}
NB_UE_INST=1;
NB_INST=1;
PHY_vars_UE_g = malloc(sizeof(PHY_VARS_NR_UE **));
PHY_vars_UE_g[0] = malloc(sizeof(PHY_VARS_NR_UE *)*MAX_NUM_CCs);
if (get_softmodem_params()->emulate_l1) {
RCconfig_nr_ue_L1();
}
if (get_softmodem_params()->do_ra)
AssertFatal(get_softmodem_params()->phy_test == 0,"RA and phy_test are mutually exclusive\n");
if (get_softmodem_params()->sa)
AssertFatal(get_softmodem_params()->phy_test == 0,"Standalone mode and phy_test are mutually exclusive\n");
if (!get_softmodem_params()->nsa && get_softmodem_params()->emulate_l1)
start_oai_nrue_threads();
if (!get_softmodem_params()->emulate_l1) {
for (int CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
PHY_vars_UE_g[0][CC_id] = (PHY_VARS_NR_UE *)malloc(sizeof(PHY_VARS_NR_UE));
UE[CC_id] = PHY_vars_UE_g[0][CC_id];
memset(UE[CC_id],0,sizeof(PHY_VARS_NR_UE));
set_options(CC_id, UE[CC_id]);
NR_UE_MAC_INST_t *mac = get_mac_inst(0);
if (get_softmodem_params()->sa) { // set frame config to initial values from command line and assume that the SSB is centered on the grid
uint16_t nr_band = get_band(downlink_frequency[CC_id][0],uplink_frequency_offset[CC_id][0]);
mac->nr_band = nr_band;
nr_init_frame_parms_ue_sa(&UE[CC_id]->frame_parms,
downlink_frequency[CC_id][0],
uplink_frequency_offset[CC_id][0],
get_softmodem_params()->numerology,
nr_band);
}
else{
if(mac->if_module != NULL && mac->if_module->phy_config_request != NULL)
mac->if_module->phy_config_request(&mac->phy_config);
fapi_nr_config_request_t *nrUE_config = &UE[CC_id]->nrUE_config;
nr_init_frame_parms_ue(&UE[CC_id]->frame_parms, nrUE_config,
*mac->scc->downlinkConfigCommon->frequencyInfoDL->frequencyBandList.list.array[0]);
}
init_symbol_rotation(&UE[CC_id]->frame_parms);
init_timeshift_rotation(&UE[CC_id]->frame_parms);
init_nr_ue_vars(UE[CC_id], 0, abstraction_flag);
}
init_openair0();
// init UE_PF_PO and mutex lock
pthread_mutex_init(&ue_pf_po_mutex, NULL);
memset (&UE_PF_PO[0][0], 0, sizeof(UE_PF_PO_t)*NUMBER_OF_UE_MAX*MAX_NUM_CCs);
configure_linux();
mlockall(MCL_CURRENT | MCL_FUTURE);
if(IS_SOFTMODEM_DOSCOPE) {
load_softscope("nr",PHY_vars_UE_g[0][0]);
}
init_NR_UE_threads(1);
printf("UE threads created by %ld\n", gettid());
}
// wait for end of program
printf("TYPE <CTRL-C> TO TERMINATE\n");
if (create_tasks_nrue(1) < 0) {
printf("cannot create ITTI tasks\n");
exit(-1); // need a softer mode
}
// Sleep a while before checking all parameters have been used
// Some are used directly in external threads, asynchronously
sleep(20);
config_check_unknown_cmdlineopt(CONFIG_CHECKALLSECTIONS);
while(true)
sleep(3600);
if (ouput_vcd)
vcd_signal_dumper_close();
return 0;
}
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