Commit 6180c752 authored by Florian Kaltenberger's avatar Florian Kaltenberger

Merge branch 'nr_dlsim' into 'develop-nr'

adding nr_dlsim (doing pdcch for the moment only)

See merge request !449
parents fd1ca9cf 5daf2168
......@@ -1602,7 +1602,14 @@ add_library(L2
${MAC_SRC}
${ENB_APP_SRC}
)
# ${OPENAIR2_DIR}/RRC/L2_INTERFACE/openair_rrc_L2_interface.c)
add_library(MAC_NR
${MAC_NR_SRC}
)
add_library(MAC_UE_NR
${MAC_NR_SRC_UE}
)
add_library(L2_NR
${L2_NR_SRC}
......@@ -2550,6 +2557,9 @@ target_link_libraries(ldpctest SIMU PHY PHY_NR m ${ATLAS_LIBRARIES})
add_executable(nr_pbchsim ${OPENAIR1_DIR}/SIMULATION/NR_PHY/pbchsim.c ${T_SOURCE})
target_link_libraries(nr_pbchsim -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB -Wl,--end-group m pthread ${ATLAS_LIBRARIES} ${T_LIB} dl)
add_executable(nr_dlsim ${OPENAIR1_DIR}/SIMULATION/NR_PHY/dlsim.c ${T_SOURCE})
target_link_libraries(nr_dlsim -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB SCHED_NR_UE_LIB MAC_NR MAC_UE_NR CONFIG_LIB -Wl,--end-group m pthread ${ATLAS_LIBRARIES} ${T_LIB} dl)
foreach(myExe dlsim dlsim_tm7 ulsim pbchsim scansim mbmssim pdcchsim pucchsim prachsim syncsim)
......
......@@ -59,9 +59,6 @@ unsigned short rev[2048],rev_times4[8192],rev_half[1024];
unsigned short rev256[256],rev512[512],rev1024[1024],rev4096[4096],rev2048[2048],rev8192[8192];
char mode_string[4][20] = {"NOT SYNCHED","PRACH","RAR","PUSCH"};
#include "SIMULATION/ETH_TRANSPORT/vars.h"
......
......@@ -55,9 +55,6 @@ unsigned short rev[2048],rev_times4[8192],rev_half[1024];
unsigned short rev256[256],rev512[512],rev1024[1024],rev4096[4096],rev2048[2048],rev8192[8192];
char mode_string[4][20] = {"NOT SYNCHED","PRACH","RAR","PUSCH"};
#include "SIMULATION/ETH_TRANSPORT/vars.h"
......
......@@ -54,10 +54,6 @@ unsigned short rev[2048],rev_times4[8192],rev_half[1024];
unsigned short rev256[256],rev512[512],rev1024[1024],rev4096[4096],rev2048[2048],rev8192[8192];
char mode_string[4][20] = {"NOT SYNCHED","PRACH","RAR","PUSCH"};
#include "SIMULATION/ETH_TRANSPORT/vars.h"
......
......@@ -87,6 +87,8 @@ fifo_dump_emos_UE emos_dump_UE;
#define NS_PER_SLOT 500000
char mode_string[4][20] = {"NOT SYNCHED","PRACH","RAR","PUSCH"};
extern double cpuf;
int32_t nr_rx_pdcch(PHY_VARS_NR_UE *ue,
......@@ -6137,10 +6139,10 @@ int phy_procedures_nrUE_RX(PHY_VARS_NR_UE *ue,UE_nr_rxtx_proc_t *proc,uint8_t eN
LOG_D(PHY," ------ end FFT/ChannelEst/PDCCH slot 1: AbsSubframe %d.%d ------ \n", frame_rx%1024, nr_tti_rx);
/*if ( (nr_tti_rx == 0) && (ue->decode_MIB == 1))
if ( (nr_tti_rx == 0) && (ue->decode_MIB == 1))
{
ue_pbch_procedures(eNB_id,ue,proc,abstraction_flag);
}*/
}
// do procedures for C-RNTI
LOG_D(PHY," ------ --> PDSCH ChannelComp/LLR slot 0: AbsSubframe %d.%d ------ \n", frame_rx%1024, nr_tti_rx);
......
......@@ -71,6 +71,8 @@
#define NS_PER_SLOT 500000
char mode_string[4][20] = {"NOT SYNCHED","PRACH","RAR","PUSCH"};
extern double cpuf;
void Msg1_transmitted(module_id_t module_idP,uint8_t CC_id,frame_t frameP, uint8_t eNB_id);
......
/*
* 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
*/
#include <string.h>
#include <math.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include "common/config/config_userapi.h"
#include "common/utils/LOG/log.h"
#include "common/ran_context.h"
#include "SIMULATION/TOOLS/sim.h"
#include "SIMULATION/RF/rf.h"
#include "PHY/types.h"
#include "PHY/defs_nr_common.h"
#include "PHY/defs_nr_UE.h"
#include "PHY/defs_gNB.h"
#include "PHY/NR_REFSIG/refsig_defs_ue.h"
#include "PHY/MODULATION/modulation_eNB.h"
#include "PHY/MODULATION/modulation_UE.h"
#include "PHY/INIT/phy_init.h"
#include "PHY/NR_TRANSPORT/nr_transport.h"
#include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h"
#include "SCHED_NR/sched_nr.h"
#include "SCHED_NR_UE/fapi_nr_ue_l1.h"
#include "LAYER2/NR_MAC_gNB/nr_mac_gNB.h"
#include "LAYER2/NR_MAC_UE/mac_defs.h"
#include "LAYER2/NR_MAC_UE/mac_extern.h"
#include "NR_PHY_INTERFACE/NR_IF_Module.h"
#include "NR_UE_PHY_INTERFACE/NR_IF_Module.h"
PHY_VARS_gNB *gNB;
PHY_VARS_NR_UE *UE;
RAN_CONTEXT_t RC;
double cpuf;
// dummy functions
int nfapi_mode=0;
int oai_nfapi_hi_dci0_req(nfapi_hi_dci0_request_t *hi_dci0_req) { return(0);}
int oai_nfapi_tx_req(nfapi_tx_request_t *tx_req) { return(0); }
int oai_nfapi_dl_config_req(nfapi_dl_config_request_t *dl_config_req) { return(0); }
int oai_nfapi_ul_config_req(nfapi_ul_config_request_t *ul_config_req) { return(0); }
int oai_nfapi_nr_dl_config_req(nfapi_nr_dl_config_request_t *dl_config_req) {return(0);}
uint32_t from_earfcn(int eutra_bandP,uint32_t dl_earfcn) {return(0);}
int32_t get_uldl_offset(int eutra_bandP) {return(0);}
NR_IF_Module_t *NR_IF_Module_init(int Mod_id){return(NULL);}
int8_t dummy_nr_ue_dl_indication(nr_downlink_indication_t *dl_info){return(0);}
int8_t dummy_nr_ue_ul_indication(nr_uplink_indication_t *ul_info){return(0);}
void exit_function(const char* file, const char* function, const int line,const char *s) {
const char * msg= s==NULL ? "no comment": s;
printf("Exiting at: %s:%d %s(), %s\n", file, line, function, msg);
exit(-1);
}
int8_t nr_mac_rrc_data_ind_ue(const module_id_t module_id,
const int CC_id,
const uint8_t gNB_index,
const int8_t channel,
const uint8_t* pduP,
const sdu_size_t pdu_len)
{return(0);}
int rlc_module_init (void) {return(0);}
void pdcp_layer_init(void) {}
int rrc_init_nr_global_param(void){return(0);}
// needed for some functions
PHY_VARS_NR_UE ***PHY_vars_UE_g;
uint16_t conjugate[8]__attribute__((aligned(32))) = {-1,1,-1,1,-1,1,-1,1};
int main(int argc, char **argv)
{
char c;
int i,l,aa;
double sigma2, sigma2_dB=10,SNR,snr0=-2.0,snr1=2.0;
uint8_t snr1set=0;
int **txdata;
double **s_re,**s_im,**r_re,**r_im;
double iqim = 0.0;
unsigned char pbch_pdu[6];
// int sync_pos, sync_pos_slot;
// FILE *rx_frame_file;
FILE *output_fd = NULL;
uint8_t write_output_file=0;
//int result;
int freq_offset;
// int subframe_offset;
// char fname[40], vname[40];
int trial,n_trials=1,n_errors,n_errors2,n_alamouti;
uint8_t transmission_mode = 1,n_tx=1,n_rx=1;
uint16_t Nid_cell=0;
channel_desc_t *gNB2UE;
uint32_t nsymb,tx_lev,tx_lev1 = 0,tx_lev2 = 0;
uint8_t extended_prefix_flag=0;
int8_t interf1=-21,interf2=-21;
FILE *input_fd=NULL,*pbch_file_fd=NULL;
char input_val_str[50],input_val_str2[50];
uint8_t frame_mod4,num_pdcch_symbols = 0;
SCM_t channel_model=AWGN;//Rayleigh1_anticorr;
double pbch_sinr;
int pbch_tx_ant;
int N_RB_DL=273,mu=1;
unsigned char frame_type = 0;
unsigned char pbch_phase = 0;
int frame=0,subframe=1;
int frame_length_complex_samples;
int frame_length_complex_samples_no_prefix;
NR_DL_FRAME_PARMS *frame_parms;
nfapi_nr_config_request_t *gNB_config;
gNB_L1_rxtx_proc_t gNB_proc;
UE_nr_rxtx_proc_t UE_proc;
NR_Sched_Rsp_t Sched_INFO;
gNB_MAC_INST *gNB_mac;
NR_UE_MAC_INST_t *UE_mac;
int ret;
int run_initial_sync=0;
int do_pdcch_flag=1;
int loglvl=OAILOG_WARNING;
float target_error_rate = 0.01;
cpuf = get_cpu_freq_GHz();
if ( load_configmodule(argc,argv) == 0) {
exit_fun("[SOFTMODEM] Error, configuration module init failed\n");
}
randominit(0);
while ((c = getopt (argc, argv, "f:hA:pf:g:i:j:n:s:S:t:x:y:z:N:F:GR:dP:IL:")) != -1) {
switch (c) {
case 'f':
write_output_file=1;
output_fd = fopen(optarg,"w");
if (output_fd==NULL) {
printf("Error opening %s\n",optarg);
exit(-1);
}
break;
case 'd':
frame_type = 1;
break;
case 'g':
switch((char)*optarg) {
case 'A':
channel_model=SCM_A;
break;
case 'B':
channel_model=SCM_B;
break;
case 'C':
channel_model=SCM_C;
break;
case 'D':
channel_model=SCM_D;
break;
case 'E':
channel_model=EPA;
break;
case 'F':
channel_model=EVA;
break;
case 'G':
channel_model=ETU;
break;
default:
msg("Unsupported channel model!\n");
exit(-1);
}
break;
case 'i':
interf1=atoi(optarg);
break;
case 'j':
interf2=atoi(optarg);
break;
case 'n':
n_trials = atoi(optarg);
break;
case 's':
snr0 = atof(optarg);
msg("Setting SNR0 to %f\n",snr0);
break;
case 'S':
snr1 = atof(optarg);
snr1set=1;
msg("Setting SNR1 to %f\n",snr1);
break;
/*
case 't':
Td= atof(optarg);
break;
*/
case 'p':
extended_prefix_flag=1;
break;
/*
case 'r':
ricean_factor = pow(10,-.1*atof(optarg));
if (ricean_factor>1) {
printf("Ricean factor must be between 0 and 1\n");
exit(-1);
}
break;
*/
case 'x':
transmission_mode=atoi(optarg);
if ((transmission_mode!=1) &&
(transmission_mode!=2) &&
(transmission_mode!=6)) {
msg("Unsupported transmission mode %d\n",transmission_mode);
exit(-1);
}
break;
case 'y':
n_tx=atoi(optarg);
if ((n_tx==0) || (n_tx>2)) {
msg("Unsupported number of tx antennas %d\n",n_tx);
exit(-1);
}
break;
case 'z':
n_rx=atoi(optarg);
if ((n_rx==0) || (n_rx>2)) {
msg("Unsupported number of rx antennas %d\n",n_rx);
exit(-1);
}
break;
case 'N':
Nid_cell = atoi(optarg);
break;
case 'R':
N_RB_DL = atoi(optarg);
break;
case 'F':
input_fd = fopen(optarg,"r");
if (input_fd==NULL) {
printf("Problem with filename %s\n",optarg);
exit(-1);
}
break;
case 'P':
pbch_phase = atoi(optarg);
if (pbch_phase>3)
printf("Illegal PBCH phase (0-3) got %d\n",pbch_phase);
break;
case 'I':
run_initial_sync=1;
target_error_rate=0.1;
break;
case 'L':
loglvl = atoi(optarg);
break;
default:
case 'h':
printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n",
argv[0]);
printf("-h This message\n");
printf("-p Use extended prefix mode\n");
printf("-d Use TDD\n");
printf("-n Number of frames to simulate\n");
printf("-s Starting SNR, runs from SNR0 to SNR0 + 5 dB. If n_frames is 1 then just SNR is simulated\n");
printf("-S Ending SNR, runs from SNR0 to SNR1\n");
printf("-t Delay spread for multipath channel\n");
printf("-g [A,B,C,D,E,F,G] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models (ignores delay spread and Ricean factor)\n");
printf("-x Transmission mode (1,2,6 for the moment)\n");
printf("-y Number of TX antennas used in eNB\n");
printf("-z Number of RX antennas used in UE\n");
printf("-i Relative strength of first intefering eNB (in dB) - cell_id mod 3 = 1\n");
printf("-j Relative strength of second intefering eNB (in dB) - cell_id mod 3 = 2\n");
printf("-N Nid_cell\n");
printf("-R N_RB_DL\n");
printf("-O oversampling factor (1,2,4,8,16)\n");
printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n");
// printf("-C Generate Calibration information for Abstraction (effective SNR adjustment to remove Pe bias w.r.t. AWGN)\n");
printf("-f Output filename (.txt format) for Pe/SNR results\n");
printf("-F Input filename (.txt format) for RX conformance testing\n");
exit (-1);
break;
}
}
logInit();
set_glog(loglvl);
T_stdout = 1;
if (snr1set==0)
snr1 = snr0+10;
printf("Initializing gNodeB for mu %d, N_RB_DL %d\n",mu,N_RB_DL);
RC.gNB = (PHY_VARS_gNB***) malloc(sizeof(PHY_VARS_gNB **));
RC.gNB[0] = (PHY_VARS_gNB**) malloc(sizeof(PHY_VARS_gNB *));
RC.gNB[0][0] = malloc(sizeof(PHY_VARS_gNB));
gNB = RC.gNB[0][0];
gNB_config = &gNB->gNB_config;
frame_parms = &gNB->frame_parms; //to be initialized I suppose (maybe not necessary for PBCH)
frame_parms->nb_antennas_tx = n_tx;
frame_parms->nb_antennas_rx = n_rx;
frame_parms->N_RB_DL = N_RB_DL;
frame_parms->N_RB_UL = N_RB_DL;
nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu);
phy_init_nr_gNB(gNB,0,0);
double fs,bw;
if (mu == 1 && N_RB_DL == 217) {
fs = 122.88e6;
bw = 80e6;
}
else if (mu == 1 && N_RB_DL == 245) {
fs = 122.88e6;
bw = 90e6;
}
else if (mu == 1 && N_RB_DL == 273) {
fs = 122.88e6;
bw = 100e6;
}
else if (mu == 1 && N_RB_DL == 106) {
fs = 61.44e6;
bw = 40e6;
}
else AssertFatal(1==0,"Unsupported numerology for mu %d, N_RB %d\n",mu, N_RB_DL);
gNB2UE = new_channel_desc_scm(n_tx,
n_rx,
channel_model,
fs,
bw,
0,
0,
0);
if (gNB2UE==NULL) {
msg("Problem generating channel model. Exiting.\n");
exit(-1);
}
frame_length_complex_samples = frame_parms->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME;
frame_length_complex_samples_no_prefix = frame_parms->samples_per_subframe_wCP;
s_re = malloc(2*sizeof(double*));
s_im = malloc(2*sizeof(double*));
r_re = malloc(2*sizeof(double*));
r_im = malloc(2*sizeof(double*));
txdata = malloc(2*sizeof(int*));
for (i=0; i<2; i++) {
s_re[i] = malloc(frame_length_complex_samples*sizeof(double));
bzero(s_re[i],frame_length_complex_samples*sizeof(double));
s_im[i] = malloc(frame_length_complex_samples*sizeof(double));
bzero(s_im[i],frame_length_complex_samples*sizeof(double));
r_re[i] = malloc(frame_length_complex_samples*sizeof(double));
bzero(r_re[i],frame_length_complex_samples*sizeof(double));
r_im[i] = malloc(frame_length_complex_samples*sizeof(double));
bzero(r_im[i],frame_length_complex_samples*sizeof(double));
printf("Allocating %d samples for txdata\n",frame_length_complex_samples);
txdata[i] = malloc(frame_length_complex_samples*sizeof(int));
bzero(r_re[i],frame_length_complex_samples*sizeof(int));
}
if (pbch_file_fd!=NULL) {
load_pbch_desc(pbch_file_fd);
}
//configure UE
UE = malloc(sizeof(PHY_VARS_NR_UE));
PHY_vars_UE_g = malloc(sizeof(PHY_VARS_NR_UE**));
PHY_vars_UE_g[0] = malloc(sizeof(PHY_VARS_NR_UE*));
PHY_vars_UE_g[0][0] = UE;
memcpy(&UE->frame_parms,frame_parms,sizeof(NR_DL_FRAME_PARMS));
phy_init_nr_top(UE);
if (run_initial_sync==1) UE->is_synchronized = 0;
else UE->is_synchronized = 1;
UE->perfect_ce = 0;
if (init_nr_ue_signal(UE, 1, 0) != 0)
{
printf("Error at UE NR initialisation\n");
exit(-1);
}
nr_gold_pbch(UE);
RC.nb_nr_macrlc_inst = 1;
mac_top_init_gNB();
gNB_mac = RC.nrmac[0];
nr_l2_init_ue();
UE_mac = get_mac_inst(0);
UE->if_inst = nr_ue_if_module_init(0);
UE->if_inst->scheduled_response = nr_ue_scheduled_response;
UE->if_inst->phy_config_request = nr_ue_phy_config_request;
UE->if_inst->dl_indication = dummy_nr_ue_dl_indication;
UE->if_inst->ul_indication = dummy_nr_ue_ul_indication;
//mac->if_module = nr_ue_if_module_init(0);
// generate signal
if (input_fd==NULL) {
gNB->pbch_configured = 1;
for (int i=0;i<4;i++) gNB->pbch_pdu[i]=i+1;
nr_schedule_css_dlsch_phytest(0,frame,subframe);
Sched_INFO.module_id = 0;
Sched_INFO.CC_id = 0;
Sched_INFO.frame = frame;
Sched_INFO.subframe = subframe;
Sched_INFO.DL_req = &gNB_mac->DL_req[0];
Sched_INFO.UL_req = NULL;
Sched_INFO.HI_DCI0_req = NULL;
Sched_INFO.TX_req = &gNB_mac->TX_req[0];
nr_schedule_response(&Sched_INFO);
gNB_proc.frame_tx = frame;
gNB_proc.subframe_tx = subframe;
phy_procedures_gNB_TX(gNB,&gNB_proc,0);
//nr_common_signal_procedures (gNB,frame,subframe);
LOG_M("txsigF0.m","txsF0", gNB->common_vars.txdataF[0],frame_length_complex_samples_no_prefix,1,1);
if (gNB->frame_parms.nb_antennas_tx>1)
LOG_M("txsigF1.m","txsF1", gNB->common_vars.txdataF[1],frame_length_complex_samples_no_prefix,1,1);
//TODO: loop over slots
for (aa=0; aa<gNB->frame_parms.nb_antennas_tx; aa++) {
if (gNB_config->subframe_config.dl_cyclic_prefix_type.value == 1) {
PHY_ofdm_mod(gNB->common_vars.txdataF[aa],
txdata[aa],
frame_parms->ofdm_symbol_size,
12,
frame_parms->nb_prefix_samples,
CYCLIC_PREFIX);
} else {
nr_normal_prefix_mod(gNB->common_vars.txdataF[aa],
txdata[aa],
14,
frame_parms);
}
}
} else {
printf("Reading %d samples from file to antenna buffer %d\n",frame_length_complex_samples,0);
if (fread(txdata[0],
sizeof(int32_t),
frame_length_complex_samples,
input_fd) != frame_length_complex_samples) {
printf("error reading from file\n");
exit(-1);
}
}
LOG_M("txsig0.m","txs0", txdata[0],frame_length_complex_samples,1,1);
if (gNB->frame_parms.nb_antennas_tx>1)
LOG_M("txsig1.m","txs1", txdata[1],frame_length_complex_samples,1,1);
if (output_fd)
fwrite(txdata[0],sizeof(int32_t),frame_length_complex_samples,output_fd);
int txlev = signal_energy(&txdata[0][5*frame_parms->ofdm_symbol_size + 4*frame_parms->nb_prefix_samples + frame_parms->nb_prefix_samples0],
frame_parms->ofdm_symbol_size + frame_parms->nb_prefix_samples);
// printf("txlev %d (%f)\n",txlev,10*log10(txlev));
for (i=0; i<frame_length_complex_samples; i++) {
for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
r_re[aa][i] = ((double)(((short *)txdata[aa]))[(i<<1)]);
r_im[aa][i] = ((double)(((short *)txdata[aa]))[(i<<1)+1]);
}
}
//Configure UE
fapi_nr_dl_config_request_t dl_config;
// Type0 PDCCH search space
dl_config.number_pdus = 1;
dl_config.dl_config_list[0].pdu_type = FAPI_NR_DL_CONFIG_TYPE_DCI;
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.rnti = 3; // to be set
uint64_t mask = 0x0;
uint16_t num_rbs=24;
uint16_t rb_offset=0;
uint16_t cell_id=0;
uint16_t num_symbols=2;
for(i=0; i<(num_rbs/6); ++i){ // 38.331 Each bit corresponds a group of 6 RBs
mask = mask >> 1;
mask = mask | 0x100000000000;
}
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.frequency_domain_resource = mask;
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.rb_offset = rb_offset; // additional parameter other than coreset
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.duration = num_symbols;
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.cce_reg_mapping_type =CCE_REG_MAPPING_TYPE_INTERLEAVED;
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.cce_reg_interleaved_reg_bundle_size = 6; // L 38.211 7.3.2.2
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.cce_reg_interleaved_interleaver_size = 2; // R 38.211 7.3.2.2
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.cce_reg_interleaved_shift_index = cell_id;
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.precoder_granularity = PRECODER_GRANULARITY_SAME_AS_REG_BUNDLE;
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.pdcch_dmrs_scrambling_id = cell_id;
uint32_t number_of_search_space_per_slot=1;
uint32_t first_symbol_index=0;
uint32_t search_space_duration; // element of search space
uint32_t coreset_duration; // element of coreset
coreset_duration = num_symbols * number_of_search_space_per_slot;
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.number_of_candidates[0] = table_38213_10_1_1_c2[0];
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.number_of_candidates[1] = table_38213_10_1_1_c2[1];
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.number_of_candidates[2] = table_38213_10_1_1_c2[2]; // CCE aggregation level = 4
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.number_of_candidates[3] = table_38213_10_1_1_c2[3]; // CCE aggregation level = 8
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.number_of_candidates[4] = table_38213_10_1_1_c2[4]; // CCE aggregation level = 16
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.duration = search_space_duration;
dl_config.dl_config_list[0].dci_config_pdu.dci_config_rel15.monitoring_symbols_within_slot = (0x3fff << first_symbol_index) & (0x3fff >> (14-coreset_duration-first_symbol_index)) & 0x3fff;
for (SNR=snr0; SNR<snr1; SNR+=.2) {
n_errors = 0;
n_errors2 = 0;
n_alamouti = 0;
for (trial=0; trial<n_trials; trial++) {