/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/*! \file oaisim_functions.c
* \brief function primitives of oaisim
* \author Navid Nikaein
* \date 2013-2015
* \version 1.0
* \company Eurecom
* \email: openair_tech@eurecom.fr
* \note
* \warning
*/
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <signal.h>
#include <execinfo.h>
#include <time.h>
#include <mcheck.h>
#include <sys/timerfd.h>
#include "assertions.h"
#include "oaisim_functions.h"
#include "PHY/extern.h"
#include "LAYER2/MAC/extern.h"
#ifdef OPENAIR2
#include "LAYER2/MAC/proto.h"
#endif
#include "LAYER2/PDCP_v10.1.0/pdcp.h"
#include "LAYER2/PDCP_v10.1.0/pdcp_primitives.h"
#include "RRC/LITE/extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
#include "PHY_INTERFACE/extern.h"
//#include "ARCH/CBMIMO1/DEVICE_DRIVER/extern.h"
#include "SCHED/extern.h"
#include "SIMULATION/ETH_TRANSPORT/proto.h"
#include "UTIL/OCG/OCG_extern.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "UTIL/OTG/otg_config.h"
#include "UTIL/OTG/otg_tx.h"
#if ENABLE_RAL
#include "lteRALenb.h"
#include "lteRALue.h"
#endif
#include "cor_SF_sim.h"
#include "enb_config.h"
#if defined(ENABLE_ITTI)
# include "intertask_interface.h"
#endif
#if defined(ENABLE_USE_MME)
# include "s1ap_eNB.h"
#endif
#ifdef SMBV
extern uint8_t config_smbv;
extern char smbv_ip[16];
#endif
//constant for OAISIM soft realtime calibration
#define SF_DEVIATION_OFFSET_NS 100000 //= 0.1ms : should be as a number of UE
#define SLEEP_STEP_US 100 // = 0.01ms could be adaptive, should be as a number of UE
#define K 2 // averaging coefficient
#define TARGET_SF_TIME_NS 1000000 // 1ms = 1000000 ns
int otg_times = 0;
int if_times = 0;
int for_times = 0;
uint16_t Nid_cell = 0; //needed by init_lte_vars
int nb_antennas_rx_ue = 1; // //
uint8_t target_dl_mcs = 16; // max mcs used by MAC scheduler
uint8_t rate_adaptation_flag = 0;
uint8_t set_snr = 0;
uint8_t set_sinr = 0;
double snr_dB=0, sinr_dB=0;
uint8_t set_seed = 0;
uint8_t cooperation_flag; // for cooperative communication
uint8_t abstraction_flag = 0;
uint8_t ethernet_flag = 0;
double snr_step = 1.0;
uint8_t ue_connection_test = 0;
double forgetting_factor = 0.0;
uint8_t beta_ACK = 0;
uint8_t beta_RI = 0;
uint8_t beta_CQI = 2;
uint8_t target_ul_mcs = 16;
LTE_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs];
int map1,map2;
double **ShaF = NULL;
// pointers signal buffers (s = transmit, r,r0 = receive)
double **s_re, **s_im, **r_re, **r_im, **r_re0, **r_im0;
node_list* ue_node_list = NULL;
node_list* enb_node_list = NULL;
int omg_period = 10000;
int pdcp_period = 0;
int cba_backoff = 30;
// time calibration for soft realtime mode
struct timespec time_spec;
unsigned long time_last = 0;
unsigned long time_now = 0;
int td = 0;
int td_avg = 0;
int sleep_time_us = 0;
int phy_test = 0;
#ifdef OPENAIR2
// omv related info
//pid_t omv_pid;
char full_name[200];
extern int pfd[2]; // fd for omv : fixme: this could be a local var
char fdstr[10];
char frames[10];
char num_enb[10];
char num_ue[10];
//area_x, area_y and area_z for omv
char x_area[20];
char y_area[20];
char z_area[20];
char nb_antenna[20];
char frame_type[10];
char tdd_config[10];
#endif
Packet_OTG_List_t *otg_pdcp_buffer = NULL;
extern node_desc_t *enb_data[NUMBER_OF_eNB_MAX];
extern node_desc_t *ue_data[NUMBER_OF_UE_MAX];
extern channel_desc_t *eNB2UE[NUMBER_OF_eNB_MAX][NUMBER_OF_UE_MAX][MAX_NUM_CCs];
extern channel_desc_t *UE2eNB[NUMBER_OF_UE_MAX][NUMBER_OF_eNB_MAX][MAX_NUM_CCs];
extern mapping small_scale_names[];
#if defined(Rel10)
extern pdcp_mbms_t pdcp_mbms_array_ue[NUMBER_OF_UE_MAX][maxServiceCount][maxSessionPerPMCH];
extern pdcp_mbms_t pdcp_mbms_array_eNB[NUMBER_OF_eNB_MAX][maxServiceCount][maxSessionPerPMCH];
#endif
extern time_stats_t dl_chan_stats;
extern time_stats_t ul_chan_stats;
extern int xforms;
extern uint32_t downlink_frequency[MAX_NUM_CCs][4];
extern int32_t uplink_frequency_offset[MAX_NUM_CCs][4];
void init_eNB(eNB_func_t node_function[], eNB_timing_t node_timing[],int nb_inst);
void stop_eNB(int nb_inst);
const Enb_properties_array_t *enb_properties;
void get_simulation_options(int argc, char *argv[])
{
int option;
char *conf_config_file_name = NULL;
enum long_option_e {
LONG_OPTION_START = 0x100, /* Start after regular single char options */
LONG_OPTION_ENB_CONF,
LONG_OPTION_PDNC_PERIOD,
LONG_OPTION_OMG_PERIOD,
LONG_OPTION_OEH_ENABLED,
LONG_OPTION_ENB_RAL_LISTENING_PORT,
LONG_OPTION_ENB_RAL_IP_ADDRESS,
LONG_OPTION_ENB_RAL_LINK_ID,
LONG_OPTION_ENB_RAL_LINK_ADDRESS,
LONG_OPTION_ENB_MIHF_REMOTE_PORT,
LONG_OPTION_ENB_MIHF_IP_ADDRESS,
LONG_OPTION_ENB_MIHF_ID,
LONG_OPTION_UE_RAL_LISTENING_PORT,
LONG_OPTION_UE_RAL_IP_ADDRESS,
LONG_OPTION_UE_RAL_LINK_ID,
LONG_OPTION_UE_RAL_LINK_ADDRESS,
LONG_OPTION_UE_MIHF_REMOTE_PORT,
LONG_OPTION_UE_MIHF_IP_ADDRESS,
LONG_OPTION_UE_MIHF_ID,
LONG_OPTION_MALLOC_TRACE_ENABLED,
LONG_OPTION_CBA_BACKOFF_TIMER,
LONG_OPTION_PHYTEST,
LONG_OPTION_XFORMS,
#if T_TRACER
LONG_OPTION_T_PORT,
LONG_OPTION_T_NOWAIT,
LONG_OPTION_T_DONT_FORK,
#endif
};
static struct option long_options[] = {
{"enb-conf", required_argument, 0, LONG_OPTION_ENB_CONF},
{"pdcp-period", required_argument, 0, LONG_OPTION_PDNC_PERIOD},
{"omg-period", required_argument, 0, LONG_OPTION_OMG_PERIOD},
{"oeh-enabled", no_argument, 0, LONG_OPTION_OEH_ENABLED},
{"enb-ral-listening-port", required_argument, 0, LONG_OPTION_ENB_RAL_LISTENING_PORT},
{"enb-ral-ip-address", required_argument, 0, LONG_OPTION_ENB_RAL_IP_ADDRESS},
{"enb-ral-link-id", required_argument, 0, LONG_OPTION_ENB_RAL_LINK_ID},
{"enb-ral-link-address", required_argument, 0, LONG_OPTION_ENB_RAL_LINK_ADDRESS},
{"enb-mihf-remote-port", required_argument, 0, LONG_OPTION_ENB_MIHF_REMOTE_PORT},
{"enb-mihf-ip-address", required_argument, 0, LONG_OPTION_ENB_MIHF_IP_ADDRESS},
{"enb-mihf-id", required_argument, 0, LONG_OPTION_ENB_MIHF_ID},
{"ue-ral-listening-port", required_argument, 0, LONG_OPTION_UE_RAL_LISTENING_PORT},
{"ue-ral-ip-address", required_argument, 0, LONG_OPTION_UE_RAL_IP_ADDRESS},
{"ue-ral-link-id", required_argument, 0, LONG_OPTION_UE_RAL_LINK_ID},
{"ue-ral-link-address", required_argument, 0, LONG_OPTION_UE_RAL_LINK_ADDRESS},
{"ue-mihf-remote-port", required_argument, 0, LONG_OPTION_UE_MIHF_REMOTE_PORT},
{"ue-mihf-ip-address", required_argument, 0, LONG_OPTION_UE_MIHF_IP_ADDRESS},
{"ue-mihf-id", required_argument, 0, LONG_OPTION_UE_MIHF_ID},
{"malloc-trace-enabled", no_argument, 0, LONG_OPTION_MALLOC_TRACE_ENABLED},
{"cba-backoff", required_argument, 0, LONG_OPTION_CBA_BACKOFF_TIMER},
{"phy-test", no_argument, NULL, LONG_OPTION_PHYTEST},
{"xforms", no_argument, 0, LONG_OPTION_XFORMS},
#if T_TRACER
{"T_port", required_argument, 0, LONG_OPTION_T_PORT},
{"T_nowait", no_argument, 0, LONG_OPTION_T_NOWAIT},
{"T_dont_fork", no_argument, 0, LONG_OPTION_T_DONT_FORK},
#endif
{NULL, 0, NULL, 0}
};
while ((option = getopt_long (argc, argv, "aA:b:B:c:C:D:d:eE:f:FGg:hHi:IJ:j:k:K:l:L:m:M:n:N:oO:p:P:qQ:rR:s:S:t:T:u:U:vV:w:W:x:X:y:Y:z:Z:", long_options, NULL)) != -1) {
switch (option) {
case LONG_OPTION_PHYTEST:
phy_test = 1;
break;
case LONG_OPTION_ENB_CONF:
if (optarg) {
free(conf_config_file_name); // prevent memory leak if option is used multiple times
conf_config_file_name = strdup(optarg);
printf("eNB configuration file is %s\n", conf_config_file_name);
}
break;
case LONG_OPTION_PDNC_PERIOD:
if (optarg) {
pdcp_period = atoi(optarg);
printf("PDCP period is %d\n", pdcp_period);
}
break;
case LONG_OPTION_OMG_PERIOD:
if (optarg) {
omg_period = atoi(optarg);
printf("OMG period is %d\n", omg_period);
}
break;
case LONG_OPTION_OEH_ENABLED:
oai_emulation.info.oeh_enabled = 1;
break;
case LONG_OPTION_MALLOC_TRACE_ENABLED:
mtrace();
break;
case LONG_OPTION_CBA_BACKOFF_TIMER:
oai_emulation.info.cba_backoff=atoi(optarg);
cba_backoff=atoi(optarg);
printf("setting CBA backoff to %d\n", cba_backoff);
break;
#if ENABLE_RAL
case LONG_OPTION_ENB_RAL_LISTENING_PORT:
if (optarg) {
g_conf_enb_ral_listening_port = strdup(optarg);
printf("eNB RAL listening port is %s\n", g_conf_enb_ral_listening_port);
}
break;
case LONG_OPTION_ENB_RAL_IP_ADDRESS:
if (optarg) {
g_conf_enb_ral_ip_address = strdup(optarg);
printf("eNB RAL IP address is %s\n", g_conf_enb_ral_ip_address);
}
break;
case LONG_OPTION_ENB_RAL_LINK_ADDRESS:
if (optarg) {
g_conf_enb_ral_link_address = strdup(optarg);
printf("eNB RAL link address is %s\n", g_conf_enb_ral_link_address);
}
break;
case LONG_OPTION_ENB_RAL_LINK_ID:
if (optarg) {
g_conf_enb_ral_link_id = strdup(optarg);
printf("eNB RAL link id is %s\n", g_conf_enb_ral_link_id);
}
break;
case LONG_OPTION_ENB_MIHF_REMOTE_PORT:
if (optarg) {
g_conf_enb_mihf_remote_port = strdup(optarg);
printf("eNB MIH-F remote port is %s\n", g_conf_enb_mihf_remote_port);
}
break;
case LONG_OPTION_ENB_MIHF_IP_ADDRESS:
if (optarg) {
g_conf_enb_mihf_ip_address = strdup(optarg);
printf("eNB MIH-F IP address is %s\n", g_conf_enb_mihf_ip_address);
}
break;
case LONG_OPTION_ENB_MIHF_ID:
if (optarg) {
g_conf_enb_mihf_id = strdup(optarg);
printf("eNB MIH-F id is %s\n", g_conf_enb_mihf_id);
}
break;
case LONG_OPTION_UE_RAL_LISTENING_PORT:
if (optarg) {
g_conf_ue_ral_listening_port = strdup(optarg);
printf("UE RAL listening port is %s\n", g_conf_ue_ral_listening_port);
}
break;
case LONG_OPTION_UE_RAL_IP_ADDRESS:
if (optarg) {
g_conf_ue_ral_ip_address = strdup(optarg);
printf("UE RAL IP address is %s\n", g_conf_ue_ral_ip_address);
}
break;
case LONG_OPTION_UE_RAL_LINK_ID:
if (optarg) {
g_conf_ue_ral_link_id = strdup(optarg);
printf("UE RAL link id is %s\n", g_conf_ue_ral_link_id);
}
break;
case LONG_OPTION_UE_RAL_LINK_ADDRESS:
if (optarg) {
g_conf_ue_ral_link_address = strdup(optarg);
printf("UE RAL link address is %s\n", g_conf_ue_ral_link_address);
}
break;
case LONG_OPTION_UE_MIHF_REMOTE_PORT:
if (optarg) {
g_conf_ue_mihf_remote_port = strdup(optarg);
printf("UE MIH-F remote port is %s\n", g_conf_ue_mihf_remote_port);
}
break;
case LONG_OPTION_UE_MIHF_IP_ADDRESS:
if (optarg) {
g_conf_ue_mihf_ip_address = strdup(optarg);
printf("UE MIH-F IP address is %s\n", g_conf_ue_mihf_ip_address);
}
break;
case LONG_OPTION_UE_MIHF_ID:
if (optarg) {
g_conf_ue_mihf_id = strdup(optarg);
printf("UE MIH-F id is %s\n", g_conf_ue_mihf_id);
}
break;
#endif
case LONG_OPTION_XFORMS:
xforms=1;
break;
#if T_TRACER
case LONG_OPTION_T_PORT: {
extern int T_port;
if (optarg == NULL) abort(); /* should not happen */
T_port = atoi(optarg);
break;
}
case LONG_OPTION_T_NOWAIT: {
extern int T_wait;
T_wait = 0;
break;
}
case LONG_OPTION_T_DONT_FORK: {
extern int T_dont_fork;
T_dont_fork = 1;
break;
}
#endif
case 'a':
abstraction_flag = 1;
break;
case 'A':
//oai_emulation.info.ocm_enabled=1;
if (optarg == NULL)
oai_emulation.environment_system_config.fading.small_scale.selected_option="AWGN";
else
oai_emulation.environment_system_config.fading.small_scale.selected_option= optarg;
//awgn_flag = 1;
break;
case 'b':
oai_emulation.info.nb_enb_local = atoi (optarg);
break;
case 'B':
oai_emulation.topology_config.mobility.eNB_mobility.eNB_mobility_type.selected_option = optarg;
//oai_emulation.info.omg_model_enb = atoi (optarg);
break;
case 'c':
//strcpy(oai_emulation.info.local_server, optarg);
strncpy(oai_emulation.info.local_server, optarg, sizeof(oai_emulation.info.local_server));
oai_emulation.info.local_server[sizeof(oai_emulation.info.local_server) - 1] = 0; // terminate string
oai_emulation.info.ocg_enabled=1;
break;
case 'C':
oai_emulation.info.tdd_config[0] = atoi (optarg);
AssertFatal (oai_emulation.info.tdd_config[0] <= TDD_Config__subframeAssignment_sa6, "Illegal tdd_config %d (should be 0-%d)!",
oai_emulation.info.tdd_config[0], TDD_Config__subframeAssignment_sa6);
break;
case 'D':
oai_emulation.info.multicast_ifname = strdup(optarg);
break;
case 'e':
oai_emulation.info.extended_prefix_flag[0] = 1;
break;
case 'E':
set_seed = 1;
oai_emulation.info.seed = atoi (optarg);
break;
case 'f':
forgetting_factor = atof (optarg);
break;
case 'F': // set FDD
printf("Setting Frame to FDD\n");
oai_emulation.info.frame_type[0] = 0;
oai_emulation.info.frame_type_name[0] = "FDD";
break;
case 'g':
oai_emulation.info.multicast_group = atoi (optarg);
break;
case 'G' :
oai_emulation.info.otg_bg_traffic_enabled = 1;
break;
case 'h':
help ();
exit (1);
break;
case 'H':
oai_emulation.info.handover_active=1;
printf("Activate the handover procedure at RRC\n");
break;
case 'i':
#ifdef PROC
Process_Flag=1;
node_id = wgt+atoi(optarg);
port+=atoi(optarg);
#endif
break;
case 'I':
oai_emulation.info.cli_enabled = 1;
break;
case 'j' :
// number of relay nodes: currently only applicable to eMBMS
oai_emulation.info.nb_rn_local = atoi (optarg);
break;
case 'J':
ue_connection_test=1;
oai_emulation.info.ocm_enabled=0;
snr_step = atof(optarg);
break;
case 'k':
//ricean_factor = atof (optarg);
printf("[SIM] Option k is no longer supported on the command line. Please specify your channel model in the xml template\n");
exit(-1);
break;
case 'K':
oai_emulation.info.itti_dump_file = optarg;
break;
case 'l':
oai_emulation.info.g_log_level = atoi(optarg);
break;
case 'L': // set FDD
flag_LA = atoi(optarg);
break;
case 'm':
target_dl_mcs = atoi (optarg);
printf("Max target downlink MCS used by MAC scheduler is set to %d\n", target_dl_mcs);
break;
case 'M':
abstraction_flag = 1;
ethernet_flag = 1;
oai_emulation.info.ethernet_id = atoi (optarg);
oai_emulation.info.master_id = oai_emulation.info.ethernet_id;
oai_emulation.info.ethernet_flag = 1;
break;
case 'n':
oai_emulation.info.n_frames = atoi (optarg);
oai_emulation.emulation_config.emulation_time_ms= oai_emulation.info.n_frames * 10; // 10 ms frame
//n_frames = (n_frames >1024) ? 1024: n_frames; // adjust the n_frames if higher that 1024
oai_emulation.info.n_frames_flag = 1;
break;
case 'N':
Nid_cell = atoi (optarg);
if (Nid_cell > 503) {
printf("Illegal Nid_cell %d (should be 0 ... 503)\n", Nid_cell);
exit(-1);
}
break;
case 'O':
if (optarg) {
free(conf_config_file_name); // prevent memory leak if option is used multiple times
conf_config_file_name = strdup(optarg);
}
break;
case 'o':
oai_emulation.info.slot_isr = 1;
break;
case 'p':
oai_emulation.info.nb_master = atoi (optarg);
break;
case 'P':
oai_emulation.info.opt_enabled = 1;
opt_enabled = 1;
if (strcmp(optarg, "wireshark") == 0) {
opt_type = OPT_WIRESHARK;
printf("Enabling OPT for wireshark\n");
} else if (strcmp(optarg, "pcap") == 0) {
opt_type = OPT_PCAP;
printf("Enabling OPT for pcap\n");
} else {
printf("Unrecognized option for OPT module. -> Disabling it\n");
printf("Possible values are either wireshark or pcap\n");
opt_type = OPT_NONE;
oai_emulation.info.opt_enabled = 0;
opt_enabled = 0;
}
oai_emulation.info.opt_mode = opt_type;
break;
case 'q':
// openair performane profiler
oai_emulation.info.opp_enabled = 1; // this var is used for OCG
opp_enabled = 1; // this is the global var used by oaisim
break;
case 'Q':
//eMBMS_active=1;
// 0 : not used (default), 1: eMBMS and RRC enabled, 2: eMBMS relaying and RRC enabled, 3: eMBMS enabled, RRC disabled, 4: eMBMS relaying enabled, RRC disabled
oai_emulation.info.eMBMS_active_state = atoi (optarg);
break;
case 'r':
rate_adaptation_flag = 1;
break;
case 'R':
oai_emulation.info.N_RB_DL[0] = atoi (optarg);
if ((oai_emulation.info.N_RB_DL[0] != 6) && (oai_emulation.info.N_RB_DL[0] != 15) && (oai_emulation.info.N_RB_DL[0] != 25)
&& (oai_emulation.info.N_RB_DL[0] != 50) && (oai_emulation.info.N_RB_DL[0] != 75) && (oai_emulation.info.N_RB_DL[0] != 100)) {
printf("Illegal N_RB_DL %d (should be one of 6,15,25,50,75,100)\n", oai_emulation.info.N_RB_DL[0]);
exit (-1);
}
break;
case 's':
snr_dB = atoi (optarg);
// set_snr = 1;
oai_emulation.info.ocm_enabled=0;
break;
case 'S':
sinr_dB = atoi (optarg);
set_sinr = 1;
oai_emulation.info.ocm_enabled=0;
break;
case 't':
target_ul_mcs = atoi (optarg);
printf("Max target uplink MCS used by MAC scheduler is set to %d\n", target_ul_mcs);
break;
case 'T':
oai_emulation.info.otg_enabled = 1;
oai_emulation.info.otg_traffic = optarg;
break;
case 'u':
oai_emulation.info.nb_ue_local = atoi (optarg);
break;
case 'U':
oai_emulation.topology_config.mobility.UE_mobility.UE_mobility_type.selected_option = optarg;
break;
case 'v':
oai_emulation.info.omv_enabled = 1;
break;
case 'V':
ouput_vcd = 1;
oai_emulation.info.vcd_enabled = 1;
oai_emulation.info.vcd_file = optarg;
break;
case 'w':
oai_emulation.info.cba_group_active = atoi (optarg);
break;
case 'W':
#ifdef SMBV
config_smbv = 1;
if(atoi(optarg)!=0)
strcpy(smbv_ip,optarg);
#endif
break;
case 'x':
/*
oai_emulation.info.transmission_mode[0] = atoi (optarg);
if ((oai_emulation.info.transmission_mode[0] != 1) && (oai_emulation.info.transmission_mode[0] != 2) && (oai_emulation.info.transmission_mode[0] != 3)
&& (oai_emulation.info.transmission_mode[0] != 5) && (oai_emulation.info.transmission_mode[0] != 6)) {
printf("Unsupported transmission mode %d\n",oai_emulation.info.transmission_mode[0]);
exit(-1);
}
*/
printf("Option -x deprecated. Please set transmission mode in eNB config file\n");
exit(-1);
break;
case 'X':
#ifdef PROC
temp=atoi(optarg);
if(temp==0) {
port=CHANNEL_PORT;
Channel_Flag=1;
Process_Flag=0;
wgt=0;
} else if(temp==1) {
port=eNB_PORT;
wgt=0;
} else {
port=UE_PORT;
wgt=MAX_eNB;
}
#endif
break;
case 'y':
nb_antennas_rx_ue=atoi(optarg);
if (nb_antennas_rx_ue>4) {
printf("Cannot have more than 4 antennas\n");
exit(-1);
}
break;
case 'Y':
oai_emulation.info.g_log_verbosity_option = strdup(optarg);
break;
case 'z':
cooperation_flag = atoi (optarg);
break;
case 'Z':
/* Sebastien ROUX: Reserved for future use (currently used in ltenow branch) */
break;
default:
help ();
exit (-1);
break;
}
}
if ((oai_emulation.info.nb_enb_local > 0) && (conf_config_file_name != NULL)) {
/* Read eNB configuration file */
enb_properties = enb_config_init(conf_config_file_name);
AssertFatal (oai_emulation.info.nb_enb_local <= enb_properties->number,
"Number of eNB is greater than eNB defined in configuration file %s (%d/%d)!",
conf_config_file_name, oai_emulation.info.nb_enb_local, enb_properties->number);
/* Update some simulation parameters */
oai_emulation.info.frame_type[0] = enb_properties->properties[0]->frame_type[0];
oai_emulation.info.tdd_config[0] = enb_properties->properties[0]->tdd_config[0];
oai_emulation.info.tdd_config_S[0] = enb_properties->properties[0]->tdd_config_s[0];
oai_emulation.info.extended_prefix_flag[0] = enb_properties->properties[0]->prefix_type[0];
oai_emulation.info.node_function[0] = enb_properties->properties[0]->cc_node_function[0];
oai_emulation.info.node_timing[0] = enb_properties->properties[0]->cc_node_timing[0];
downlink_frequency[0][0] = enb_properties->properties[0]->downlink_frequency[0];
uplink_frequency_offset[0][0] = enb_properties->properties[0]->uplink_frequency_offset[0];
}
free(conf_config_file_name);
conf_config_file_name = 0;
}
void check_and_adjust_params(void)
{
int32_t ret;
int i,j;
if (oai_emulation.info.nb_ue_local + oai_emulation.info.nb_rn_local > NUMBER_OF_UE_MAX) {
LOG_E(EMU,"Enter fewer than %d UEs/RNs for the moment or change the NUMBER_OF_UE_MAX\n", NUMBER_OF_UE_MAX);
exit(EXIT_FAILURE);
}
if (oai_emulation.info.nb_enb_local + oai_emulation.info.nb_rn_local > NUMBER_OF_eNB_MAX) {
LOG_E(EMU,"Enter fewer than %d eNBs/RNs for the moment or change the NUMBER_OF_UE_MAX\n", NUMBER_OF_eNB_MAX);
exit(EXIT_FAILURE);
}
if (oai_emulation.info.nb_rn_local > NUMBER_OF_RN_MAX) {
LOG_E(EMU,"Enter fewer than %d RNs for the moment or change the NUMBER_OF_RN_MAX\n", NUMBER_OF_RN_MAX);
exit(EXIT_FAILURE);
}
// fix ethernet and abstraction with RRC_CELLULAR Flag
#ifdef RRC_CELLULAR
abstraction_flag = 1;
ethernet_flag = 1;
#endif
if (set_sinr == 0)
sinr_dB = snr_dB - 20;
// setup netdevice interface (netlink socket)
LOG_I(EMU,"[INIT] Starting NAS netlink interface\n");
ret = netlink_init();
if (ret < 0)
LOG_W(EMU,"[INIT] Netlink not available, careful ...\n");
if (ethernet_flag == 1) {
oai_emulation.info.master[oai_emulation.info.master_id].nb_ue = oai_emulation.info.nb_ue_local + oai_emulation.info.nb_rn_local;
oai_emulation.info.master[oai_emulation.info.master_id].nb_enb = oai_emulation.info.nb_enb_local + oai_emulation.info.nb_rn_local;
if (oai_emulation.info.nb_rn_local>0)
LOG_N(EMU,"Ethernet emulation is not yet tested with the relay nodes\n");
if (!oai_emulation.info.master_id)
oai_emulation.info.is_primary_master = 1;
j = 1;
for (i = 0; i < oai_emulation.info.nb_master; i++) {
if (i != oai_emulation.info.master_id)
oai_emulation.info.master_list = oai_emulation.info.master_list + j;
LOG_I (EMU, "Index of master id i=%d MASTER_LIST %d\n", i, oai_emulation.info.master_list);
j *= 2;
}
LOG_I (EMU, " Total number of master %d my master id %d\n", oai_emulation.info.nb_master, oai_emulation.info.master_id);
init_bypass ();
while (emu_tx_status != SYNCED_TRANSPORT) {
LOG_I (EMU, " Waiting for EMU Transport to be synced\n");
emu_transport_sync (); //emulation_tx_rx();
}
} // ethernet flag
//
NB_UE_INST = oai_emulation.info.nb_ue_local + oai_emulation.info.nb_ue_remote;
NB_eNB_INST = oai_emulation.info.nb_enb_local + oai_emulation.info.nb_enb_remote;
NB_RN_INST = oai_emulation.info.nb_rn_local + oai_emulation.info.nb_rn_remote;
#if defined(PDCP_USE_NETLINK_QUEUES) && defined(OPENAIR2)
pdcp_netlink_init();
#endif
if (NB_RN_INST > 0 ) {
LOG_N(EMU,"Total number of RN %d (local %d, remote %d) mobility (the same as eNB) %s \n", NB_RN_INST,oai_emulation.info.nb_rn_local,oai_emulation.info.nb_rn_remote,
oai_emulation.topology_config.mobility.eNB_mobility.eNB_mobility_type.selected_option);
LOG_N(EMU,"Adjust the number of eNB inst (%d->%d) and UE inst (%d->%d)\n ",
NB_eNB_INST, NB_eNB_INST+NB_RN_INST,
NB_UE_INST, NB_UE_INST+NB_RN_INST);
NB_eNB_INST+=NB_RN_INST;
NB_UE_INST+=NB_RN_INST;
}
LOG_I(EMU,"Total number of UE %d (first local %d , num local %d, remote %d, relay %d) mobility %s \n",
NB_UE_INST,oai_emulation.info.first_ue_local, oai_emulation.info.nb_ue_local,oai_emulation.info.nb_ue_remote,
NB_RN_INST,
oai_emulation.topology_config.mobility.UE_mobility.UE_mobility_type.selected_option);
LOG_I(EMU,"Total number of eNB %d (local %d, remote %d, relay %d) mobility %s \n",
NB_eNB_INST,oai_emulation.info.nb_enb_local,oai_emulation.info.nb_enb_remote,
NB_RN_INST,
oai_emulation.topology_config.mobility.eNB_mobility.eNB_mobility_type.selected_option);
}
#ifdef OPENAIR2
void init_omv(void)
{
if (oai_emulation.info.omv_enabled == 1) {
if(pipe(pfd) == -1)
perror("pipe error \n");
snprintf( full_name, sizeof(full_name), "%s/UTIL/OMV/OMV",getenv("OPENAIR2_DIR") );
LOG_I(EMU,"Stating the OMV path %s pfd[0] %d pfd[1] %d \n", full_name, pfd[0],pfd[1]);
switch(fork()) {
case -1 :
perror("fork failed \n");
break;
case 0 : // child is going to be the omv, it is the reader
if(close(pfd[1]) == -1 ) // we close the write desc.
perror("close on write\n" );
sprintf(fdstr, "%d", pfd[0] );
sprintf(num_enb, "%d", NB_eNB_INST);
sprintf(num_ue, "%d", NB_UE_INST);
sprintf(x_area, "%f", oai_emulation.topology_config.area.x_m );
sprintf(y_area, "%f", oai_emulation.topology_config.area.y_m );
sprintf(z_area, "%f", 200.0 );
sprintf(frames, "%d", oai_emulation.info.n_frames);
sprintf(nb_antenna, "%d", 4);
sprintf(frame_type, "%s", (oai_emulation.info.frame_type[0] == 0) ? "FDD" : "TDD");
sprintf(tdd_config, "%d", oai_emulation.info.tdd_config[0]);
// execl is used to launch the visualisor
execl(full_name,"OMV", fdstr, frames, num_enb, num_ue, x_area, y_area, z_area, nb_antenna, frame_type, tdd_config,NULL );
perror( "error in execl the OMV" );
}
//parent
if(close( pfd[0] ) == -1 ) // we close the write desc.
perror("close on read\n" );
}
}
#endif
void init_seed(uint8_t set_seed)
{
if(set_seed) {
randominit (oai_emulation.info.seed);
set_taus_seed (oai_emulation.info.seed);
} else {
randominit (0);
set_taus_seed (0);
}
}
openair0_timestamp current_eNB_rx_timestamp[NUMBER_OF_eNB_MAX][MAX_NUM_CCs];
openair0_timestamp current_UE_rx_timestamp[NUMBER_OF_UE_MAX][MAX_NUM_CCs];
openair0_timestamp last_eNB_rx_timestamp[NUMBER_OF_eNB_MAX][MAX_NUM_CCs];
openair0_timestamp last_UE_rx_timestamp[NUMBER_OF_UE_MAX][MAX_NUM_CCs];
int eNB_trx_start(openair0_device *device) {
return(0);
}
void eNB_trx_end(openair0_device *device) {
return;
}
int eNB_trx_stop(openair0_device *device) {
return(0);
}
int UE_trx_start(openair0_device *device) {
return(0);
}
int UE_trx_end(openair0_device *device) {
return(0);
}
int UE_trx_stop(openair0_device *device) {
return(0);
}
int eNB_trx_set_freq(openair0_device *device, openair0_config_t *openair0_cfg, int dummy) {
return(0);
}
int eNB_trx_set_gains(openair0_device *device, openair0_config_t *openair0_cfg) {
return(0);
}
int UE_trx_set_freq(openair0_device *device, openair0_config_t *openair0_cfg, int dummy) {
return(0);
}
int UE_trx_set_gains(openair0_device *device, openair0_config_t *openair0_cfg) {
return(0);
}
extern pthread_mutex_t subframe_mutex;
extern int subframe_eNB_mask,subframe_UE_mask;
int eNB_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **buff, int nsamps, int cc) {
int eNB_id = device->Mod_id;
int CC_id = device->CC_id;
int subframe;
int ready_for_new_subframe=0;
int subframe_eNB_mask_local;
int sample_count=0;
*ptimestamp = last_eNB_rx_timestamp[eNB_id][CC_id];
LOG_D(PHY,"eNB_trx_read nsamps %d TS(%llu,%llu) => subframe %d\n",nsamps,
(unsigned long long)current_eNB_rx_timestamp[eNB_id][CC_id],
(unsigned long long)last_eNB_rx_timestamp[eNB_id][CC_id],
(*ptimestamp/PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.samples_per_tti)%10);
// if we're at a subframe boundary generate UL signals for this eNB
while (sample_count<nsamps) {
while (current_eNB_rx_timestamp[eNB_id][CC_id]<
(nsamps+last_eNB_rx_timestamp[eNB_id][CC_id])) {
LOG_D(EMU,"eNB: current TS %llu, last TS %llu, sleeping\n",current_eNB_rx_timestamp[eNB_id][CC_id],last_eNB_rx_timestamp[eNB_id][CC_id]);
usleep(500);
}
// tell top-level we are busy
pthread_mutex_lock(&subframe_mutex);
subframe_eNB_mask|=(1<<eNB_id);
pthread_mutex_unlock(&subframe_mutex);
subframe = (last_eNB_rx_timestamp[eNB_id][CC_id]/PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.samples_per_tti)%10;
LOG_D(PHY,"eNB_trx_read generating UL subframe %d (Ts %llu, current TS %llu)\n",
subframe,(unsigned long long)*ptimestamp,
(unsigned long long)current_eNB_rx_timestamp[eNB_id][CC_id]);
do_UL_sig(UE2eNB,
enb_data,
ue_data,
subframe,
0, // abstraction_flag
&PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms,
0, // frame is only used for abstraction
eNB_id,
CC_id);
last_eNB_rx_timestamp[eNB_id][CC_id] += PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.samples_per_tti;
sample_count += PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.samples_per_tti;
}
return(nsamps);
}
int UE_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **buff, int nsamps, int cc) {
int UE_id = device->Mod_id;
int CC_id = device->CC_id;
int subframe;
int ready_for_new_subframe=0;
int subframe_UE_mask_local;
int sample_count=0;
int read_size;
*ptimestamp = last_UE_rx_timestamp[UE_id][CC_id];
LOG_D(EMU,"UE_trx_read nsamps %d TS(%llu,%llu) antenna %d\n",nsamps,
(unsigned long long)current_UE_rx_timestamp[UE_id][CC_id],
(unsigned long long)last_UE_rx_timestamp[UE_id][CC_id],
cc);
if (nsamps < PHY_vars_UE_g[UE_id][CC_id]->frame_parms.samples_per_tti)
read_size = nsamps;
else
read_size = PHY_vars_UE_g[UE_id][CC_id]->frame_parms.samples_per_tti;
while (sample_count<nsamps) {
while (current_UE_rx_timestamp[UE_id][CC_id] <
(last_UE_rx_timestamp[UE_id][CC_id]+read_size)) {
LOG_D(EMU,"UE_trx_read : current TS %d, last TS %d, sleeping\n",current_UE_rx_timestamp[UE_id][CC_id],last_UE_rx_timestamp[UE_id][CC_id]);
usleep(500);
}
LOG_D(EMU,"UE_trx_read : current TS %d, last TS %d, sleeping\n",current_UE_rx_timestamp[UE_id][CC_id],last_UE_rx_timestamp[UE_id][CC_id]);
// tell top-level we are busy
pthread_mutex_lock(&subframe_mutex);
subframe_UE_mask|=(1<<UE_id);
pthread_mutex_unlock(&subframe_mutex);
// otherwise we have one subframe here so generate the received signal
subframe = (last_UE_rx_timestamp[UE_id][CC_id]/PHY_vars_UE_g[UE_id][CC_id]->frame_parms.samples_per_tti)%10;
if ((last_UE_rx_timestamp[UE_id][CC_id]%PHY_vars_UE_g[UE_id][CC_id]->frame_parms.samples_per_tti) > 0)
subframe++;
last_UE_rx_timestamp[UE_id][CC_id] += read_size;
sample_count += read_size;
if (subframe > 9)
return(nsamps);
LOG_D(PHY,"UE_trx_read generating DL subframe %d (Ts %llu, current TS %llu)\n",
subframe,(unsigned long long)*ptimestamp,
(unsigned long long)current_UE_rx_timestamp[UE_id][CC_id]);
do_DL_sig(eNB2UE,
enb_data,
ue_data,
subframe,
0, //abstraction_flag,
&PHY_vars_UE_g[UE_id][CC_id]->frame_parms,
UE_id,
CC_id);
}
return(nsamps);
}
int eNB_trx_write(openair0_device *device,openair0_timestamp timestamp, void **buff, int nsamps, int cc, int flags) {
return(nsamps);
}
int UE_trx_write(openair0_device *device,openair0_timestamp timestamp, void **buff, int nsamps, int cc, int flags) {
return(nsamps);
}
void init_devices(void){
module_id_t UE_id, eNB_id;
uint8_t CC_id;
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
for (eNB_id=0;eNB_id<NB_eNB_INST;eNB_id++) {
PHY_vars_eNB_g[eNB_id][CC_id]->rfdevice.Mod_id = eNB_id;
PHY_vars_eNB_g[eNB_id][CC_id]->rfdevice.CC_id = CC_id;
PHY_vars_eNB_g[eNB_id][CC_id]->rfdevice.trx_start_func = eNB_trx_start;
PHY_vars_eNB_g[eNB_id][CC_id]->rfdevice.trx_read_func = eNB_trx_read;
PHY_vars_eNB_g[eNB_id][CC_id]->rfdevice.trx_write_func = eNB_trx_write;
PHY_vars_eNB_g[eNB_id][CC_id]->rfdevice.trx_end_func = eNB_trx_end;
PHY_vars_eNB_g[eNB_id][CC_id]->rfdevice.trx_stop_func = eNB_trx_stop;
PHY_vars_eNB_g[eNB_id][CC_id]->rfdevice.trx_set_freq_func = eNB_trx_set_freq;
PHY_vars_eNB_g[eNB_id][CC_id]->rfdevice.trx_set_gains_func = eNB_trx_set_gains;
current_eNB_rx_timestamp[eNB_id][CC_id] = PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.samples_per_tti;
last_eNB_rx_timestamp[eNB_id][CC_id] = 0;
}
for (UE_id=0;UE_id<NB_UE_INST;UE_id++) {
PHY_vars_UE_g[UE_id][CC_id]->rfdevice.Mod_id = UE_id;
PHY_vars_UE_g[UE_id][CC_id]->rfdevice.CC_id = CC_id;
PHY_vars_UE_g[UE_id][CC_id]->rfdevice.trx_start_func = UE_trx_start;
PHY_vars_UE_g[UE_id][CC_id]->rfdevice.trx_read_func = UE_trx_read;
PHY_vars_UE_g[UE_id][CC_id]->rfdevice.trx_write_func = UE_trx_write;
PHY_vars_UE_g[UE_id][CC_id]->rfdevice.trx_end_func = UE_trx_end;
PHY_vars_UE_g[UE_id][CC_id]->rfdevice.trx_stop_func = UE_trx_stop;
PHY_vars_UE_g[UE_id][CC_id]->rfdevice.trx_set_freq_func = UE_trx_set_freq;
PHY_vars_UE_g[UE_id][CC_id]->rfdevice.trx_set_gains_func = UE_trx_set_gains;
current_UE_rx_timestamp[UE_id][CC_id] = PHY_vars_UE_g[UE_id][CC_id]->frame_parms.samples_per_tti;
last_UE_rx_timestamp[UE_id][CC_id] = 0;
}
}
}
void init_openair1(void)
{
module_id_t UE_id, eNB_id;
uint8_t CC_id;
#if ENABLE_RAL
int list_index;
#endif
// change the nb_connected_eNB
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
init_lte_vars (&frame_parms[CC_id],
oai_emulation.info.frame_type[CC_id],
oai_emulation.info.tdd_config[CC_id],
oai_emulation.info.tdd_config_S[CC_id],
oai_emulation.info.extended_prefix_flag[CC_id],
oai_emulation.info.N_RB_DL[CC_id],
Nid_cell,
cooperation_flag,
enb_properties->properties[0]->nb_antenna_ports[CC_id],
abstraction_flag,
enb_properties->properties[0]->nb_antennas_rx[CC_id],
enb_properties->properties[0]->nb_antennas_tx[CC_id],
nb_antennas_rx_ue,
oai_emulation.info.eMBMS_active_state);
}
for (eNB_id=0; eNB_id<NB_eNB_INST; eNB_id++) {
for (UE_id=0; UE_id<NB_UE_INST; UE_id++) {
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
PHY_vars_eNB_g[eNB_id][CC_id]->pusch_config_dedicated[UE_id].betaOffset_ACK_Index = beta_ACK;
PHY_vars_eNB_g[eNB_id][CC_id]->pusch_config_dedicated[UE_id].betaOffset_RI_Index = beta_RI;
PHY_vars_eNB_g[eNB_id][CC_id]->pusch_config_dedicated[UE_id].betaOffset_CQI_Index = beta_CQI;
PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.pdsch_config_common.p_b = (frame_parms[CC_id]->nb_antennas_tx_eNB>1) ? 1 : 0; // rho_A = rho_B
PHY_vars_UE_g[UE_id][CC_id]->pusch_config_dedicated[eNB_id].betaOffset_ACK_Index = beta_ACK;
PHY_vars_UE_g[UE_id][CC_id]->pusch_config_dedicated[eNB_id].betaOffset_RI_Index = beta_RI;
PHY_vars_UE_g[UE_id][CC_id]->pusch_config_dedicated[eNB_id].betaOffset_CQI_Index = beta_CQI;
PHY_vars_UE_g[UE_id][CC_id]->frame_parms.pdsch_config_common.p_b = (frame_parms[CC_id]->nb_antennas_tx_eNB>1) ? 1 : 0; // rho_A = rho_B
}
}
}
printf ("AFTER init: MAX_NUM_CCs %d, Nid_cell %d frame_type %d,tdd_config %d\n",
MAX_NUM_CCs,
PHY_vars_eNB_g[0][0]->frame_parms.Nid_cell,
PHY_vars_eNB_g[0][0]->frame_parms.frame_type,
PHY_vars_eNB_g[0][0]->frame_parms.tdd_config);
number_of_cards = 1;
// openair_daq_vars.rx_rf_mode = 1;
// openair_daq_vars.tdd = 1;
// openair_daq_vars.rx_gain_mode = DAQ_AGC_ON;
// openair_daq_vars.dlsch_transmission_mode = oai_emulation.info.transmission_mode[0];
//#warning "NN->FK: OAI EMU channel abstraction does not work for MCS higher than"
// openair_daq_vars.target_ue_dl_mcs = cmin(target_dl_mcs,16);
// openair_daq_vars.target_ue_ul_mcs = target_ul_mcs;
// openair_daq_vars.ue_dl_rb_alloc=0x1fff;
// openair_daq_vars.ue_ul_nb_rb=6;
// openair_daq_vars.dlsch_rate_adaptation = rate_adaptation_flag;
//N_TA_offset
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
for (UE_id=0; UE_id<NB_UE_INST; UE_id++) {
PHY_vars_UE_g[UE_id][CC_id]->use_ia_receiver = 0;
PHY_vars_UE_g[UE_id][CC_id]->mode = normal_txrx;
PHY_vars_UE_g[UE_id][CC_id]->mac_enabled = 1;
PHY_vars_UE_g[UE_id][CC_id]->no_timing_correction = 1;
if (PHY_vars_UE_g[UE_id][CC_id]->frame_parms.frame_type == TDD) {
if (PHY_vars_UE_g[UE_id][CC_id]->frame_parms.N_RB_DL == 100)
PHY_vars_UE_g[UE_id][CC_id]->N_TA_offset = 624;
else if (PHY_vars_UE_g[UE_id][CC_id]->frame_parms.N_RB_DL == 50)
PHY_vars_UE_g[UE_id][CC_id]->N_TA_offset = 624/2;
else if (PHY_vars_UE_g[UE_id][CC_id]->frame_parms.N_RB_DL == 25)
PHY_vars_UE_g[UE_id][CC_id]->N_TA_offset = 624/4;
} else {
PHY_vars_UE_g[UE_id][CC_id]->N_TA_offset = 0;
}
}
for (eNB_id=0; eNB_id<NB_eNB_INST; eNB_id++) {
if (PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.frame_type == TDD) {
if (PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.N_RB_DL == 100)
PHY_vars_eNB_g[eNB_id][CC_id]->N_TA_offset = 624;
else if (PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.N_RB_DL == 50)
PHY_vars_eNB_g[eNB_id][CC_id]->N_TA_offset = 624/2;
else if (PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.N_RB_DL == 25)
PHY_vars_eNB_g[eNB_id][CC_id]->N_TA_offset = 624/4;
} else {
PHY_vars_eNB_g[eNB_id][CC_id]->N_TA_offset = 0;
}
} // eNB_id
} // CC_id
for (eNB_id=0; eNB_id<NB_eNB_INST; eNB_id++) {
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
if (phy_test==1)
PHY_vars_eNB_g[eNB_id][CC_id]->mac_enabled=0;
else
PHY_vars_eNB_g[eNB_id][CC_id]->mac_enabled=1;
}
}
init_devices ();
init_eNB(oai_emulation.info.node_function,oai_emulation.info.node_timing,NB_eNB_INST);
// init_ue_status();
for (UE_id=0; UE_id<NB_UE_INST; UE_id++) {
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
PHY_vars_UE_g[UE_id][CC_id]->tx_power_max_dBm=23;
PHY_vars_UE_g[UE_id][CC_id]->rx_total_gain_dB=100;
// update UE_mode for each eNB_id not just 0
if (abstraction_flag == 0)
PHY_vars_UE_g[UE_id][CC_id]->UE_mode[0] = NOT_SYNCHED;
else {
// 0 is the index of the connected eNB
PHY_vars_UE_g[UE_id][CC_id]->UE_mode[0] = PRACH;
}
if (phy_test==1)
PHY_vars_UE_g[UE_id][CC_id]->mac_enabled=0;
else
PHY_vars_UE_g[UE_id][CC_id]->mac_enabled=1;
PHY_vars_UE_g[UE_id][CC_id]->pdcch_vars[0]->crnti = 0x1235 + UE_id;
PHY_vars_UE_g[UE_id][CC_id]->current_dlsch_cqi[0] = 10;
LOG_I(EMU, "UE %d mode is initialized to %d\n", UE_id, PHY_vars_UE_g[UE_id][CC_id]->UE_mode[0] );
#if ENABLE_RAL
PHY_vars_UE_g[UE_id][CC_id]->ral_thresholds_timed = hashtable_create (64, NULL, NULL);
for (list_index = 0; list_index < RAL_LINK_PARAM_GEN_MAX; list_index++) {
SLIST_INIT(&PHY_vars_UE_g[UE_id][CC_id]->ral_thresholds_gen_polled[list_index]);
}
for (list_index = 0; list_index < RAL_LINK_PARAM_LTE_MAX; list_index++) {
SLIST_INIT(&PHY_vars_UE_g[UE_id][CC_id]->ral_thresholds_lte_polled[list_index]);
}
#endif
} // CC_id
} // UE_id
init_UE(NB_UE_INST);
}
void init_openair2(void)
{
#ifdef OPENAIR2
module_id_t enb_id;
module_id_t UE_id;
int CC_id;
//#warning "eNB index is hard coded to zero"
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++)
l2_init (&PHY_vars_eNB_g[0][CC_id]->frame_parms,
oai_emulation.info.eMBMS_active_state,
NULL,
oai_emulation.info.cba_group_active,
oai_emulation.info.handover_active);
mac_xface->macphy_exit = exit_fun;
#endif
}
void init_ocm(void)
{
module_id_t UE_id, eNB_id;
int CC_id;
/* Added for PHY abstraction */
char* frame_type = "unknown";
switch (oai_emulation.info.frame_type[0]) {
case FDD:
frame_type = "FDD";
break;
case TDD:
frame_type = "FDD";
break;
}
LOG_I(OCM,"Running with frame_type %d (%s), Nid_cell %d, N_RB_DL %d, EP %d, mode %d, target dl_mcs %d, rate adaptation %d, nframes %d, abstraction %d, channel %s\n",
oai_emulation.info.frame_type[0], frame_type, Nid_cell, oai_emulation.info.N_RB_DL[0], oai_emulation.info.extended_prefix_flag[0], oai_emulation.info.transmission_mode[0],target_dl_mcs,
rate_adaptation_flag,oai_emulation.info.n_frames,abstraction_flag,oai_emulation.environment_system_config.fading.small_scale.selected_option);
if (abstraction_flag) {
get_beta_map();
#ifdef PHY_ABSTRACTION_UL
get_beta_map_up();
#endif
get_MIESM_param();
//load_pbch_desc();
}
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
enb_data[eNB_id] = (node_desc_t *)malloc(sizeof(node_desc_t));
init_enb(enb_data[eNB_id],oai_emulation.environment_system_config.antenna.eNB_antenna);
}
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
ue_data[UE_id] = (node_desc_t *)malloc(sizeof(node_desc_t));
init_ue(ue_data[UE_id],oai_emulation.environment_system_config.antenna.UE_antenna);
}
if ((oai_emulation.info.ocm_enabled == 1)&& (ethernet_flag == 0 ) &&
(oai_emulation.environment_system_config.fading.shadowing.decorrelation_distance_m>0) &&
(oai_emulation.environment_system_config.fading.shadowing.variance_dB>0)) {
// init SF map here!!!
map1 =(int)oai_emulation.topology_config.area.x_m;
map2 =(int)oai_emulation.topology_config.area.y_m;
ShaF = init_SF(map1,map2,oai_emulation.environment_system_config.fading.shadowing.decorrelation_distance_m,oai_emulation.environment_system_config.fading.shadowing.variance_dB);
// size of area to generate shadow fading map
LOG_D(EMU,"Simulation area x=%f, y=%f\n",
oai_emulation.topology_config.area.x_m,
oai_emulation.topology_config.area.y_m);
}
if (abstraction_flag == 0)
init_channel_vars (frame_parms[0], &s_re, &s_im, &r_re, &r_im, &r_re0, &r_im0);
// initialize channel descriptors
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
LOG_D(OCM,"Initializing channel (%s, %d) from eNB %d to UE %d\n", oai_emulation.environment_system_config.fading.small_scale.selected_option,
map_str_to_int(small_scale_names,oai_emulation.environment_system_config.fading.small_scale.selected_option), eNB_id, UE_id);
eNB2UE[eNB_id][UE_id][CC_id] =
new_channel_desc_scm(PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.nb_antennas_tx,
PHY_vars_UE_g[UE_id][CC_id]->frame_parms.nb_antennas_rx,
map_str_to_int(small_scale_names,oai_emulation.environment_system_config.fading.small_scale.selected_option),
N_RB2sampling_rate(PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.N_RB_DL),
N_RB2channel_bandwidth(PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.N_RB_DL),
forgetting_factor,
0,
0);
random_channel(eNB2UE[eNB_id][UE_id][CC_id],abstraction_flag);
LOG_D(OCM,"[SIM] Initializing channel (%s, %d) from UE %d to eNB %d\n", oai_emulation.environment_system_config.fading.small_scale.selected_option,
map_str_to_int(small_scale_names, oai_emulation.environment_system_config.fading.small_scale.selected_option),UE_id, eNB_id);
UE2eNB[UE_id][eNB_id][CC_id] =
new_channel_desc_scm(PHY_vars_UE_g[UE_id][CC_id]->frame_parms.nb_antennas_tx,
PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.nb_antennas_rx,
map_str_to_int(small_scale_names, oai_emulation.environment_system_config.fading.small_scale.selected_option),
N_RB2sampling_rate(PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.N_RB_UL),
N_RB2channel_bandwidth(PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.N_RB_UL),
forgetting_factor,
0,
0);
random_channel(UE2eNB[UE_id][eNB_id][CC_id],abstraction_flag);
// to make channel reciprocal uncomment following line instead of previous. However this only works for SISO at the moment. For MIMO the channel would need to be transposed.
//UE2eNB[UE_id][eNB_id] = eNB2UE[eNB_id][UE_id];
}
}
}
}
void init_otg_pdcp_buffer(void)
{
module_id_t i;
otg_pdcp_buffer = malloc((NB_UE_INST + NB_eNB_INST) * sizeof(Packet_OTG_List_t));
for (i = 0; i < NB_UE_INST + NB_eNB_INST; i++) {
pkt_list_init(&(otg_pdcp_buffer[i]));
//LOG_I(EMU,"HEAD of otg_pdcp_buffer[%d] is %p\n", i, pkt_list_get_head(&(otg_pdcp_buffer[i])));
}
}
void update_omg (frame_t frameP)
{
module_id_t UE_id, eNB_id;
int new_omg_model;
if ((frameP % omg_period) == 0 ) { // call OMG every 10ms
update_nodes(oai_emulation.info.time_s);
display_node_list(enb_node_list);
display_node_list(ue_node_list);
if (oai_emulation.info.omg_model_ue >= MAX_NUM_MOB_TYPES) { // mix mobility model
for(UE_id=oai_emulation.info.first_ue_local; UE_id<(oai_emulation.info.first_ue_local+oai_emulation.info.nb_ue_local); UE_id++) {
new_omg_model = randomgen(STATIC,RWALK);
LOG_D(OMG, "[UE] Node of ID %d is changing mobility generator ->%d \n", UE_id, new_omg_model);
// reset the mobility model for a specific node
set_new_mob_type (UE_id, UE, new_omg_model, oai_emulation.info.time_s);
}
}
if (oai_emulation.info.omg_model_enb >= MAX_NUM_MOB_TYPES) { // mix mobility model
for (eNB_id = oai_emulation.info.first_enb_local; eNB_id < (oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local); eNB_id++) {
new_omg_model = randomgen (STATIC, RWALK);
LOG_D (OMG,"[eNB] Node of ID %d is changing mobility generator ->%d \n", eNB_id, new_omg_model);
// reset the mobility model for a specific node
set_new_mob_type (eNB_id, eNB, new_omg_model, oai_emulation.info.time_s);
}
}
}
}
void update_omg_ocm()
{
enb_node_list=get_current_positions(oai_emulation.info.omg_model_enb, eNB, oai_emulation.info.time_s);
ue_node_list=get_current_positions(oai_emulation.info.omg_model_ue, UE, oai_emulation.info.time_s);
}
void update_ocm()
{
module_id_t UE_id, eNB_id;
int CC_id;
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++)
enb_data[eNB_id]->tx_power_dBm = PHY_vars_eNB_g[eNB_id][0]->frame_parms.pdsch_config_common.referenceSignalPower;
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++)
ue_data[UE_id]->tx_power_dBm = PHY_vars_UE_g[UE_id][0]->tx_power_dBm[0];
/* check if the openair channel model is activated used for PHY abstraction : path loss*/
if ((oai_emulation.info.ocm_enabled == 1)&& (ethernet_flag == 0 )) {
//LOG_D(OMG," extracting position of eNb...\n");
//display_node_list(enb_node_list);
// display_node_list(ue_node_list);
extract_position(enb_node_list, enb_data, NB_eNB_INST);
//extract_position_fixed_enb(enb_data, NB_eNB_INST,frame);
//LOG_D(OMG," extracting position of UE...\n");
// if (oai_emulation.info.omg_model_ue == TRACE)
extract_position(ue_node_list, ue_data, NB_UE_INST);
/* if (frame % 50 == 0)
LOG_N(OCM,"Path loss for TTI %d : \n", frame);
*/
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
calc_path_loss (enb_data[eNB_id], ue_data[UE_id], eNB2UE[eNB_id][UE_id][CC_id], oai_emulation.environment_system_config,ShaF);
//calc_path_loss (enb_data[eNB_id], ue_data[UE_id], eNB2UE[eNB_id][UE_id], oai_emulation.environment_system_config,0);
UE2eNB[UE_id][eNB_id][CC_id]->path_loss_dB = eNB2UE[eNB_id][UE_id][CC_id]->path_loss_dB;
// if (frame % 50 == 0)
LOG_I(OCM,"Path loss (CCid %d) between eNB %d at (%f,%f) and UE %d at (%f,%f) is %f, angle %f\n",
CC_id,eNB_id,enb_data[eNB_id]->x,enb_data[eNB_id]->y,UE_id,ue_data[UE_id]->x,ue_data[UE_id]->y,
eNB2UE[eNB_id][UE_id][CC_id]->path_loss_dB, eNB2UE[eNB_id][UE_id][CC_id]->aoa);
//double dx, dy, distance;
//dx = enb_data[eNB_id]->x - ue_data[UE_id]->x;
//dy = enb_data[eNB_id]->y - ue_data[UE_id]->y;
//distance = sqrt(dx * dx + dy * dy);
/*LOG_D(LOCALIZE, " OCM distance between eNB %d at (%f,%f) and UE %d at (%f,%f) is %f \n",
eNB_id, enb_data[eNB_id]->x,enb_data[eNB_id]->y,
UE_id, ue_data[UE_id]->x,ue_data[UE_id]->y,
distance);*/
}
}
}
}
else {
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
//pathloss: -132.24 dBm/15kHz RE + target SNR - eNB TX power per RE
if (eNB_id == (UE_id % NB_eNB_INST)) {
eNB2UE[eNB_id][UE_id][CC_id]->path_loss_dB = -132.24 + snr_dB - PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.pdsch_config_common.referenceSignalPower;
UE2eNB[UE_id][eNB_id][CC_id]->path_loss_dB = -132.24 + snr_dB - PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.pdsch_config_common.referenceSignalPower;
} else {
eNB2UE[eNB_id][UE_id][CC_id]->path_loss_dB = -132.24 + sinr_dB - PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.pdsch_config_common.referenceSignalPower;
UE2eNB[UE_id][eNB_id][CC_id]->path_loss_dB = -132.24 + sinr_dB - PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.pdsch_config_common.referenceSignalPower;
}
LOG_D(OCM,"Path loss from eNB %d to UE %d (CCid %d)=> %f dB (eNB TX %d, SNR %f)\n",eNB_id,UE_id,CC_id,
eNB2UE[eNB_id][UE_id][CC_id]->path_loss_dB,
PHY_vars_eNB_g[eNB_id][CC_id]->frame_parms.pdsch_config_common.referenceSignalPower,snr_dB);
}
}
}
}
}
#ifdef OPENAIR2
void update_otg_eNB(module_id_t enb_module_idP, unsigned int ctime)
{
#if defined(USER_MODE) && defined(OAI_EMU)
//int rrc_state=0;
if (oai_emulation.info.otg_enabled ==1 ) {
int dst_id, app_id;
Packet_otg_elt_t *otg_pkt;
for (dst_id = 0; dst_id < NUMBER_OF_UE_MAX; dst_id++) {
for_times += 1;
// generate traffic if the ue is rrc reconfigured state
//if ((rrc_state=mac_eNB_get_rrc_status(enb_module_idP, dst_id)) > 2 /*RRC_CONNECTED*/ ) {
if (mac_eNB_get_rrc_status(enb_module_idP, oai_emulation.info.eNB_ue_module_id_to_rnti[enb_module_idP][dst_id]) > 2 ){
if_times += 1;
for (app_id=0; app_id<MAX_NUM_APPLICATION; app_id++) {
otg_pkt = malloc (sizeof(Packet_otg_elt_t));
(otg_pkt->otg_pkt).sdu_buffer = (uint8_t*) packet_gen(enb_module_idP, dst_id + NB_eNB_INST, app_id, ctime, &((otg_pkt->otg_pkt).sdu_buffer_size));
if ((otg_pkt->otg_pkt).sdu_buffer != NULL) {
otg_times += 1;
(otg_pkt->otg_pkt).rb_id = DTCH-2; // app could be binded to a given DRB
(otg_pkt->otg_pkt).module_id = enb_module_idP;
(otg_pkt->otg_pkt).dst_id = dst_id;
(otg_pkt->otg_pkt).is_ue = 0;
(otg_pkt->otg_pkt).mode = PDCP_TRANSMISSION_MODE_DATA;
//Adding the packet to the OTG-PDCP buffer
pkt_list_add_tail_eurecom(otg_pkt, &(otg_pdcp_buffer[enb_module_idP]));
LOG_I(EMU,"[eNB %d] ADD pkt to OTG buffer with size %d for dst %d on rb_id %d for app id %d \n",
(otg_pkt->otg_pkt).module_id, otg_pkt->otg_pkt.sdu_buffer_size, (otg_pkt->otg_pkt).dst_id,(otg_pkt->otg_pkt).rb_id, app_id);
} else {
free(otg_pkt);
otg_pkt=NULL;
}
}
}
}
#ifdef Rel10
mbms_service_id_t service_id;
mbms_session_id_t session_id;
rb_id_t rb_id;
// MBSM multicast traffic
if (ctime >= 500 ) {// only generate when UE can receive MTCH (need to control this value)
for (service_id = 0; service_id < 2 ; service_id++) { //maxServiceCount
for (session_id = 0; session_id < 2; session_id++) { // maxSessionPerPMCH
if (pdcp_mbms_array_eNB[enb_module_idP][service_id][session_id].instanciated_instance == TRUE) { // this service/session is configured
otg_pkt = malloc (sizeof(Packet_otg_elt_t));
// LOG_T(OTG,"multicast packet gen for (service/mch %d, session/lcid %d, rb_id %d)\n", service_id, session_id, service_id*maxSessionPerPMCH + session_id);
rb_id = pdcp_mbms_array_eNB[enb_module_idP][service_id][session_id].rb_id;
(otg_pkt->otg_pkt).sdu_buffer = (uint8_t*) packet_gen_multicast(enb_module_idP, session_id, ctime, &((otg_pkt->otg_pkt).sdu_buffer_size));
if ((otg_pkt->otg_pkt).sdu_buffer != NULL) {
(otg_pkt->otg_pkt).rb_id = rb_id;
(otg_pkt->otg_pkt).module_id = enb_module_idP;
(otg_pkt->otg_pkt).dst_id = session_id;
(otg_pkt->otg_pkt).is_ue = FALSE;
//Adding the packet to the OTG-PDCP buffer
(otg_pkt->otg_pkt).mode = PDCP_TRANSMISSION_MODE_TRANSPARENT;
pkt_list_add_tail_eurecom(otg_pkt, &(otg_pdcp_buffer[enb_module_idP]));
LOG_I(EMU, "[eNB %d] ADD packet (%p) multicast to OTG buffer for dst %d on rb_id %d\n",
(otg_pkt->otg_pkt).module_id, otg_pkt, (otg_pkt->otg_pkt).dst_id,(otg_pkt->otg_pkt).rb_id);
} else {
//LOG_I(EMU, "OTG returns null \n");
free(otg_pkt);
otg_pkt=NULL;
}
// old version
/* // MBSM multicast traffic
#ifdef Rel10
if (frame >= 46) {// only generate when UE can receive MTCH (need to control this value)
for (service_id = 0; service_id < 2 ; service_id++) { //maxServiceCount
for (session_id = 0; session_id < 2; session_id++) { // maxSessionPerPMCH
// LOG_I(OTG,"DUY:frame %d, pdcp_mbms_array[module_id][rb_id].instanciated_instance is %d\n",frame,pdcp_mbms_array[module_id][service_id*maxSessionPerPMCH + session_id].instanciated_instance);
if ((pdcp_mbms_array[module_idP][service_id*maxSessionPerPMCH + session_id].instanciated_instance== module_idP + 1) && (eNB_flag == 1)){ // this service/session is configured
// LOG_T(OTG,"multicast packet gen for (service/mch %d, session/lcid %d)\n", service_id, session_id);
// Duy add
LOG_I(OTG, "frame %d, multicast packet gen for (service/mch %d, session/lcid %d, rb_id %d)\n",frame, service_id, session_id,service_id*maxSessionPerPMCH + session_id);
// end Duy add
rb_id = pdcp_mbms_array[module_id][service_id*maxSessionPerPMCH + session_id].rb_id;
otg_pkt=(uint8_t*) packet_gen_multicast(module_idP, session_id, ctime, &pkt_size);
if (otg_pkt != NULL) {
LOG_D(OTG,"[eNB %d] sending a multicast packet from module %d on rab id %d (src %d, dst %d) pkt size %d\n", eNB_index, module_idP, rb_id, module_idP, session_id, pkt_size);
pdcp_data_req(module_id, frame, eNB_flag, rb_id, RLC_MUI_UNDEFINED, RLC_SDU_CONFIRM_NO, pkt_size, otg_pkt,PDCP_TM);
free(otg_pkt);
}
}
}
}
} // end multicast traffic
#endif
*/
}
}
}
} // end multicast traffic
#endif
}
#else
#if 0 // defined(EXMIMO) || defined(OAI_USRP)
if (otg_enabled==1) {
ctime = frame * 100;
for (dst_id = 0; dst_id < NUMBER_OF_UE_MAX; dst_id++) {
if (mac_get_rrc_status(eNB_index, eNB_flag, dst_id ) > 2) {
otg_pkt = malloc (sizeof(Packet_otg_elt_t));
(otg_pkt->otg_pkt).sdu_buffer = packet_gen(module_instP, dst_id, ctime, &pkt_size);
if (otg_pkt != NULL) {
rb_id = DTCH-2;
(otg_pkt->otg_pkt).rb_id = rb_id;
(otg_pkt->otg_pkt).module_id = module_idP;
(otg_pkt->otg_pkt).is_ue = FALSE;
(otg_pkt->otg_pkt).mode = PDCP_TRANSMISSION_MODE_DATA;
//Adding the packet to the OTG-PDCP buffer
pkt_list_add_tail_eurecom(otg_pkt, &(otg_pdcp_buffer[module_idP]));
LOG_I(EMU, "[eNB %d] ADD pkt to OTG buffer for dst %d on rb_id %d\n", (otg_pkt->otg_pkt).module_id, (otg_pkt->otg_pkt).dst_id,(otg_pkt->otg_pkt).rb_id);
} else {
//LOG_I(EMU, "OTG returns null \n");
free(otg_pkt);
otg_pkt=NULL;
}
}
}
}
#endif
#endif
}
void update_otg_UE(module_id_t ue_mod_idP, unsigned int ctime)
{
#if defined(USER_MODE) && defined(OAI_EMU)
if (oai_emulation.info.otg_enabled ==1 ) {
module_id_t dst_id, src_id; //dst_id = eNB_index
module_id_t module_id = ue_mod_idP+NB_eNB_INST;
src_id = module_id;
for (dst_id=0; dst_id<NB_SIG_CNX_UE; dst_id++) {
// only consider the first attached eNB
if (mac_UE_get_rrc_status(ue_mod_idP, dst_id ) > 2 /*RRC_CONNECTED*/) {
Packet_otg_elt_t *otg_pkt = malloc (sizeof(Packet_otg_elt_t));
if (otg_pkt!=NULL)
memset(otg_pkt,0,sizeof(Packet_otg_elt_t));
else {
LOG_E(OTG,"not enough memory\n");
exit(-1);
}// Manage to add this packet to the tail of your list
(otg_pkt->otg_pkt).sdu_buffer = (uint8_t*) packet_gen(src_id, dst_id, 0, ctime, &((otg_pkt->otg_pkt).sdu_buffer_size));
if ((otg_pkt->otg_pkt).sdu_buffer != NULL) {
(otg_pkt->otg_pkt).rb_id = DTCH-2;
(otg_pkt->otg_pkt).module_id = module_id;
(otg_pkt->otg_pkt).dst_id = dst_id;
(otg_pkt->otg_pkt).is_ue = 1;
//Adding the packet to the OTG-PDCP buffer
(otg_pkt->otg_pkt).mode = PDCP_TRANSMISSION_MODE_DATA;
pkt_list_add_tail_eurecom(otg_pkt, &(otg_pdcp_buffer[module_id]));
LOG_I(EMU, "[UE %d] ADD pkt to OTG buffer with size %d for dst %d on rb_id %d \n",
(otg_pkt->otg_pkt).module_id, otg_pkt->otg_pkt.sdu_buffer_size, (otg_pkt->otg_pkt).dst_id,(otg_pkt->otg_pkt).rb_id);
} else {
free(otg_pkt);
otg_pkt=NULL;
}
}
}
}
#endif
}
#endif
int init_slot_isr(void)
{
if (oai_emulation.info.slot_isr) {
struct itimerspec its;
int sfd;
sfd = timerfd_create(CLOCK_REALTIME, 0);
if (sfd == -1) {
LOG_E(EMU, "Failed in timerfd_create (%d:%s)\n", errno, strerror(errno));
exit(EXIT_FAILURE);
}
/* Start the timer */
its.it_value.tv_sec = 0;
its.it_value.tv_nsec = 500 * 1000;
its.it_interval.tv_sec = its.it_value.tv_sec;
its.it_interval.tv_nsec = its.it_value.tv_nsec;
if (timerfd_settime(sfd, TFD_TIMER_ABSTIME, &its, NULL) == -1) {
LOG_E(EMU, "Failed in timer_settime (%d:%s)\n", errno, strerror(errno));
exit(EXIT_FAILURE);
}
oai_emulation.info.slot_sfd = sfd;
}
return 0;
}
void wait_for_slot_isr(void)
{
uint64_t exp;
ssize_t res;
if (oai_emulation.info.slot_sfd > 0) {
res = read(oai_emulation.info.slot_sfd, &exp, sizeof(exp));
if ((res < 0) || (res != sizeof(exp))) {
LOG_E(EMU, "Failed in read (%d:%s)\n", errno, strerror(errno));
exit(EXIT_FAILURE);
}
}
}
void exit_fun(const char* s)
{
void *array[10];
size_t size;
size = backtrace(array, 10);
backtrace_symbols_fd(array, size, 2);
fprintf(stderr, "Error: %s. Exiting!\n",s);
exit (-1);
}
void init_time()
{
clock_gettime (CLOCK_REALTIME, &time_spec);
time_now = (unsigned long) time_spec.tv_nsec;
td_avg = 0;
sleep_time_us = SLEEP_STEP_US;
td_avg = TARGET_SF_TIME_NS;
}
int openair0_transport_load(openair0_device *device, openair0_config_t *openair0_cfg, eth_params_t * eth_params) {
return(0);
}
int openair0_device_load(openair0_device *device, openair0_config_t *openair0_cfg) {
return(0);
}