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openairinterface5g/openair1/SIMULATION/LTE_PHY/dlsim.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
*/
/*! \file dlsim.c
\brief Top-level DL simulator
\author R. Knopp
\date 2011 - 2014
\version 0.1
\company Eurecom
\email: knopp@eurecom.fr
\note
\warning
*/
#include <string.h>
#include <math.h>
#include <unistd.h>
#include <execinfo.h>
#include <signal.h>
#include "SIMULATION/TOOLS/sim.h"
#include "PHY/types.h"
#include "PHY/defs_eNB.h"
#include "PHY/defs_UE.h"
#include "PHY/phy_vars.h"
#include "SCHED/sched_eNB.h"
#include "SCHED/sched_common_vars.h"
#include "LAYER2/MAC/mac_vars.h"
#include "OCG_vars.h"
#include "common/utils/LOG/log.h"
#include "UTIL/LISTS/list.h"
#include "unitary_defs.h"
#include "PHY/TOOLS/lte_phy_scope.h"
#include "dummy_functions.c"
#include "PHY/MODULATION/modulation_common.h"
#include "PHY/MODULATION/modulation_eNB.h"
#include "PHY/MODULATION/modulation_UE.h"
#include "PHY/LTE_TRANSPORT/transport_proto.h"
#include "PHY/LTE_UE_TRANSPORT/transport_proto_ue.h"
#include "SCHED/sched_eNB.h"
#include "SCHED_UE/sched_UE.h"
#include "common/config/config_load_configmodule.h"
#include "PHY/INIT/phy_init.h"
void feptx_ofdm(RU_t *ru);
void feptx_prec(RU_t *ru);
double cpuf;
int otg_enabled=0;
/*the following parameters are used to control the processing times calculations*/
double t_tx_max = -1000000000; /*!< \brief initial max process time for tx */
double t_rx_max = -1000000000; /*!< \brief initial max process time for rx */
double t_tx_min = 1000000000; /*!< \brief initial min process time for tx */
double t_rx_min = 1000000000; /*!< \brief initial min process time for rx */
int n_tx_dropped = 0; /*!< \brief initial max process time for tx */
int n_rx_dropped = 0; /*!< \brief initial max process time for rx */
char *parallel_config = NULL;
char *worker_config = NULL;
static THREAD_STRUCT thread_struct;
void set_parallel_conf(char *parallel_conf)
{
if(strcmp(parallel_conf,"PARALLEL_SINGLE_THREAD")==0) thread_struct.parallel_conf = PARALLEL_SINGLE_THREAD;
else if(strcmp(parallel_conf,"PARALLEL_RU_L1_SPLIT")==0) thread_struct.parallel_conf = PARALLEL_RU_L1_SPLIT;
else if(strcmp(parallel_conf,"PARALLEL_RU_L1_TRX_SPLIT")==0) thread_struct.parallel_conf = PARALLEL_RU_L1_TRX_SPLIT;
printf("[CONFIG] parallel conf is set to %d\n",thread_struct.parallel_conf);
}
void set_worker_conf(char *worker_conf)
{
if(strcmp(worker_conf,"WORKER_DISABLE")==0) thread_struct.worker_conf = WORKER_DISABLE;
else if(strcmp(worker_conf,"WORKER_ENABLE")==0) thread_struct.worker_conf = WORKER_ENABLE;
printf("[CONFIG] worker conf is set to %d\n",thread_struct.worker_conf);
}
PARALLEL_CONF_t get_thread_parallel_conf(void)
{
return thread_struct.parallel_conf;
}
WORKER_CONF_t get_thread_worker_conf(void)
{
return thread_struct.worker_conf;
}
int emulate_rf = 0;
void handler(int sig)
{
void *array[10];
size_t size;
// get void*'s for all entries on the stack
size = backtrace(array, 10);
// print out all the frames to stderr
fprintf(stderr, "Error: signal %d:\n", sig);
backtrace_symbols_fd(array, size, 2);
exit(1);
}
//DCI2_5MHz_2A_M10PRB_TDD_t DLSCH_alloc_pdu2_2A[2];
DCI1E_5MHz_2A_M10PRB_TDD_t DLSCH_alloc_pdu2_1E[2];
uint64_t DLSCH_alloc_pdu_1[2];
#define UL_RB_ALLOC 0x1ff;
#define CCCH_RB_ALLOC computeRIV(eNB->frame_parms.N_RB_UL,0,2)
//#define DLSCH_RB_ALLOC 0x1fbf // igore DC component,RB13
//#define DLSCH_RB_ALLOC 0x0001
void do_OFDM_mod_l(int32_t **txdataF, int32_t **txdata, uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms)
{
int aa, slot_offset, slot_offset_F;
slot_offset_F = (next_slot)*(frame_parms->ofdm_symbol_size)*((frame_parms->Ncp==1) ? 6 : 7);
slot_offset = (next_slot)*(frame_parms->samples_per_tti>>1);
for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
// printf("Thread %d starting ... aa %d (%llu)\n",omp_get_thread_num(),aa,rdtsc());
if (frame_parms->Ncp == 1)
PHY_ofdm_mod(&txdataF[aa][slot_offset_F], // input
&txdata[aa][slot_offset], // output
frame_parms->ofdm_symbol_size,
6, // number of symbols
frame_parms->nb_prefix_samples, // number of prefix samples
CYCLIC_PREFIX);
else {
normal_prefix_mod(&txdataF[aa][slot_offset_F],
&txdata[aa][slot_offset],
7,
frame_parms);
}
}
}
void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR, int tx_lev,int hold_channel,int abstx, int num_rounds, int trials, int round, channel_desc_t *eNB2UE[4],
double *s_re[2],double *s_im[2],double *r_re[2],double *r_im[2],FILE *csv_fd) {
int i,u;
int aa,aarx,aatx;
double channelx,channely;
double sigma2_dB,sigma2;
double iqim=0.0;
// printf("Copying tx ..., nsymb %d (n_tx %d), awgn %d\n",nsymb,eNB->frame_parms.nb_antennas_tx,awgn_flag);
for (i=0; i<2*UE->frame_parms.samples_per_tti; i++) {
for (aa=0; aa<ru->frame_parms->nb_antennas_tx; aa++) {
if (awgn_flag == 0) {
s_re[aa][i] = ((double)(((short *)ru->common.txdata[aa]))[(2*subframe*UE->frame_parms.samples_per_tti) + (i<<1)]);
s_im[aa][i] = ((double)(((short *)ru->common.txdata[aa]))[(2*subframe*UE->frame_parms.samples_per_tti) +(i<<1)+1]);
} else {
for (aarx=0; aarx<UE->frame_parms.nb_antennas_rx; aarx++) {
if (aa==0) {
r_re[aarx][i] = ((double)(((short *)ru->common.txdata[aa]))[(2*subframe*UE->frame_parms.samples_per_tti) +(i<<1)]);
r_im[aarx][i] = ((double)(((short *)ru->common.txdata[aa]))[(2*subframe*UE->frame_parms.samples_per_tti) +(i<<1)+1]);
} else {
r_re[aarx][i] += ((double)(((short *)ru->common.txdata[aa]))[(2*subframe*UE->frame_parms.samples_per_tti) +(i<<1)]);
r_im[aarx][i] += ((double)(((short *)ru->common.txdata[aa]))[(2*subframe*UE->frame_parms.samples_per_tti) +(i<<1)+1]);
}
}
}
}
}
// Multipath channel
if (awgn_flag == 0) {
multipath_channel(eNB2UE[round],s_re,s_im,r_re,r_im,
2*UE->frame_parms.samples_per_tti,hold_channel);
// printf("amc: ****************** eNB2UE[%d]->n_rx = %d,dd %d\n",round,eNB2UE[round]->nb_rx,eNB2UE[round]->channel_offset);
if(abstx==1 && num_rounds>1)
if(round==0 && hold_channel==0) {
random_channel(eNB2UE[1],0);
random_channel(eNB2UE[2],0);
random_channel(eNB2UE[3],0);
}
if (UE->perfect_ce==1) {
// fill in perfect channel estimates
freq_channel(eNB2UE[round],UE->frame_parms.N_RB_DL,12*UE->frame_parms.N_RB_DL + 1);
/*
LOG_M("channel.m","ch",eNB2UE[round]->ch[0],eNB2UE[round]->channel_length,1,8);
LOG_M("channelF.m","chF",eNB2UE[round]->chF[0],12*UE->frame_parms.N_RB_DL + 1,1,8);
*/
}
}
if(abstx) {
if (trials==0 && round==0) {
// calculate freq domain representation to compute SINR
freq_channel(eNB2UE[0], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1);
// snr=pow(10.0,.1*SNR);
fprintf(csv_fd,"%f,",SNR);
for (u=0; u<2*ru->frame_parms->N_RB_DL; u++) {
for (aarx=0; aarx<eNB2UE[0]->nb_rx; aarx++) {
for (aatx=0; aatx<eNB2UE[0]->nb_tx; aatx++) {
channelx = eNB2UE[0]->chF[aarx+(aatx*eNB2UE[0]->nb_rx)][u].x;
channely = eNB2UE[0]->chF[aarx+(aatx*eNB2UE[0]->nb_rx)][u].y;
fprintf(csv_fd,"%e+i*(%e),",channelx,channely);
}
}
}
if(num_rounds>1) {
freq_channel(eNB2UE[1], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1);
for (u=0; u<2*ru->frame_parms->N_RB_DL; u++) {
for (aarx=0; aarx<eNB2UE[1]->nb_rx; aarx++) {
for (aatx=0; aatx<eNB2UE[1]->nb_tx; aatx++) {
channelx = eNB2UE[1]->chF[aarx+(aatx*eNB2UE[1]->nb_rx)][u].x;
channely = eNB2UE[1]->chF[aarx+(aatx*eNB2UE[1]->nb_rx)][u].y;
fprintf(csv_fd,"%e+i*(%e),",channelx,channely);
}
}
}
freq_channel(eNB2UE[2], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1);
for (u=0; u<2*ru->frame_parms->N_RB_DL; u++) {
for (aarx=0; aarx<eNB2UE[2]->nb_rx; aarx++) {
for (aatx=0; aatx<eNB2UE[2]->nb_tx; aatx++) {
channelx = eNB2UE[2]->chF[aarx+(aatx*eNB2UE[2]->nb_rx)][u].x;
channely = eNB2UE[2]->chF[aarx+(aatx*eNB2UE[2]->nb_rx)][u].y;
fprintf(csv_fd,"%e+i*(%e),",channelx,channely);
}
}
}
freq_channel(eNB2UE[3], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1);
for (u=0; u<2*ru->frame_parms->N_RB_DL; u++) {
for (aarx=0; aarx<eNB2UE[3]->nb_rx; aarx++) {
for (aatx=0; aatx<eNB2UE[3]->nb_tx; aatx++) {
channelx = eNB2UE[3]->chF[aarx+(aatx*eNB2UE[3]->nb_rx)][u].x;
channely = eNB2UE[3]->chF[aarx+(aatx*eNB2UE[3]->nb_rx)][u].y;
fprintf(csv_fd,"%e+i*(%e),",channelx,channely);
}
}
}
}
}
}
//AWGN
// tx_lev is the average energy over the whole subframe
// but SNR should be better defined wrt the energy in the reference symbols
sigma2_dB = 10*log10((double)tx_lev) +10*log10((double)ru->frame_parms->ofdm_symbol_size/(double)(ru->frame_parms->N_RB_DL*12)) - SNR;
sigma2 = pow(10,sigma2_dB/10);
for (i=0; i<2*UE->frame_parms.samples_per_tti; i++) {
for (aa=0; aa<UE->frame_parms.nb_antennas_rx; aa++) {
//printf("s_re[0][%d]=> %f , r_re[0][%d]=> %f\n",i,s_re[aa][i],i,r_re[aa][i]);
((short*) UE->common_vars.rxdata[aa])[(2*subframe*UE->frame_parms.samples_per_tti)+2*i] =
(short) (r_re[aa][i] + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
((short*) UE->common_vars.rxdata[aa])[(2*subframe*UE->frame_parms.samples_per_tti)+2*i+1] =
(short) (r_im[aa][i] + (iqim*r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
}
}
}
uint16_t
fill_tx_req(nfapi_tx_request_body_t *tx_req_body,
uint16_t absSF,
uint16_t pdu_length,
uint16_t pdu_index,
uint8_t *pdu)
{
nfapi_tx_request_pdu_t *TX_req = &tx_req_body->tx_pdu_list[tx_req_body->number_of_pdus];
LOG_D(MAC, "Filling TX_req %d for pdu length %d\n",
tx_req_body->number_of_pdus, pdu_length);
TX_req->pdu_length = pdu_length;
TX_req->pdu_index = pdu_index;
TX_req->num_segments = 1;
TX_req->segments[0].segment_length = pdu_length;
TX_req->segments[0].segment_data = pdu;
tx_req_body->tl.tag = NFAPI_TX_REQUEST_BODY_TAG;
tx_req_body->number_of_pdus++;
return (((absSF / 10) << 4) + (absSF % 10));
}
void
fill_dlsch_config(nfapi_dl_config_request_body_t * dl_req,
uint16_t length,
uint16_t pdu_index,
uint16_t rnti,
uint8_t resource_allocation_type,
uint8_t virtual_resource_block_assignment_flag,
uint16_t resource_block_coding,
uint8_t modulation,
uint8_t redundancy_version,
uint8_t transport_blocks,
uint8_t transport_block_to_codeword_swap_flag,
uint8_t transmission_scheme,
uint8_t number_of_layers,
uint8_t number_of_subbands,
// uint8_t codebook_index,
uint8_t ue_category_capacity,
uint8_t pa,
uint8_t delta_power_offset_index,
uint8_t ngap,
uint8_t nprb,
uint8_t transmission_mode,
uint8_t num_bf_prb_per_subband,
uint8_t num_bf_vector)
{
nfapi_dl_config_request_pdu_t *dl_config_pdu =
&dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0,
sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DLSCH_PDU_TYPE;
dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_dl_config_dlsch_pdu));
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL8_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.length = length;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index = pdu_index;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.rnti = rnti;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_allocation_type = resource_allocation_type;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.virtual_resource_block_assignment_flag = virtual_resource_block_assignment_flag;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_block_coding = resource_block_coding;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.modulation = modulation;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.redundancy_version = redundancy_version;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks = transport_blocks;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_block_to_codeword_swap_flag = transport_block_to_codeword_swap_flag;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_scheme = transmission_scheme;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_layers = number_of_layers;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_subbands = number_of_subbands;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.codebook_index = codebook_index;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ue_category_capacity = ue_category_capacity;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pa = pa;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.delta_power_offset_index = delta_power_offset_index;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ngap = ngap;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.nprb = nprb;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_mode = transmission_mode;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_prb_per_subband = num_bf_prb_per_subband;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_vector = num_bf_vector;
dl_req->number_pdu++;
}
void fill_DCI(PHY_VARS_eNB *eNB,
int frame,
int subframe,
Sched_Rsp_t *sched_resp,
uint8_t input_buffer[NUMBER_OF_UE_MAX][20000],
int n_rnti,
int n_users,
int transmission_mode,
int retrans,
int common_flag,
int NB_RB,
int DLSCH_RB_ALLOC,
int TPC,
int mcs1,
int mcs2,
int ndi,
int rv,
int pa,
int *num_common_dci,
int *num_ue_spec_dci,
int *num_dci) {
int k;
nfapi_dl_config_request_body_t *dl_req=&sched_resp->DL_req->dl_config_request_body;
nfapi_dl_config_request_pdu_t *dl_config_pdu;
nfapi_tx_request_body_t *TX_req=&sched_resp->TX_req->tx_request_body;
dl_req->number_dci=0;
dl_req->number_pdu=0;
TX_req->number_of_pdus=0;
for(k=0; k<n_users; k++) {
switch(transmission_mode) {
case 1:
case 2:
case 7:
if (common_flag == 0) {
dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0,
sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE;
dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_dl_config_dci_dl_pdu));
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.dci_format = NFAPI_DL_DCI_FORMAT_1;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level = 4;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DCI_DL_PDU_REL8_TAG;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti = n_rnti+k;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = 1; // CRNTI : see Table 4-10 from SCF082 - nFAPI specifications
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.transmission_power = 6000; // equal to RS power
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.harq_process = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tpc = TPC; // dont adjust power when retransmitting
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.new_data_indicator_1 = ndi;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_1 = mcs1;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_1 = rv;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.resource_block_coding = DLSCH_RB_ALLOC;
//deactivate second codeword
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_2 = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_2 = 1;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.downlink_assignment_index = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.cce_idx = 0;
dl_req->number_dci++;
dl_req->number_pdu++;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
fill_dlsch_config(dl_req,
get_TBS_DL(mcs1,NB_RB),
(retrans > 0) ? -1 : 0, /* retransmission, no pdu_index */
n_rnti,
0, // type 0 allocation from 7.1.6 in 36.213
0, // virtual_resource_block_assignment_flag, unused here
DLSCH_RB_ALLOC, // resource_block_coding,
get_Qm(mcs1),
rv, // redundancy version
1, // transport blocks
0, // transport block to codeword swap flag
transmission_mode == 1 ? 0 : 1, // transmission_scheme
1, // number of layers
1, // number of subbands
// uint8_t codebook_index,
4, // UE category capacity
pa, // pa
0, // delta_power_offset for TM5
0, // ngap
0, // nprb
transmission_mode,
0, //number of PRBs treated as one subband, not used here
0 // number of beamforming vectors, not used here
);
fill_tx_req(TX_req,
(frame * 10) + subframe,
get_TBS_DL(mcs1,NB_RB),
0,
input_buffer[k]);
}
else {
}
break;
case 3:
if (common_flag == 0) {
if (eNB->frame_parms.nb_antennas_tx == 2) {
if (eNB->frame_parms.frame_type == TDD) {
}
else {
}
}
}
break;
case 4:
if (common_flag == 0) {
if (eNB->frame_parms.nb_antennas_tx == 2) {
if (eNB->frame_parms.frame_type == TDD) {
}
else {
}
} else if (eNB->frame_parms.nb_antennas_tx == 4) {
}
}
else {
}
break;
case 5:
case 6:
break;
default:
printf("Unsupported Transmission Mode %d!!!\n",transmission_mode);
exit(-1);
break;
}
}
*num_dci = dl_req->number_dci;
*num_ue_spec_dci = dl_req->number_dci;
*num_common_dci = 0;
}
int n_users = 1;
sub_frame_t subframe=7;
int num_common_dci=0,num_ue_spec_dci=0,num_dci=0,num_pdcch_symbols=1;
uint16_t n_rnti=0x1234;
int nfapi_mode=0;
int main(int argc, char **argv)
{
int c;
int k,i,j,aa;
int re;
int loglvl=OAILOG_DEBUG;
int s,Kr,Kr_bytes;
double SNR,snr0=-2.0,snr1,rate = 0;
double snr_step=1,input_snr_step=1, snr_int=30;
LTE_DL_FRAME_PARMS *frame_parms;
double s_re0[30720*2],s_im0[30720*2],r_re0[30720*2],r_im0[30720*2];
double s_re1[30720*2],s_im1[30720*2],r_re1[30720*2],r_im1[30720*2];
double *s_re[2]={s_re0,s_re1};
double *s_im[2]={s_im0,s_im1};
double *r_re[2]={r_re0,r_re1};
double *r_im[2]={r_im0,r_im1};
double forgetting_factor=0.0; //in [0,1] 0 means a new channel every time, 1 means keep the same channel
uint8_t extended_prefix_flag=0,transmission_mode=1,n_tx_port=1,n_tx_phy=1,n_rx=2;
uint16_t Nid_cell=0;
int eNB_id = 0;
unsigned char mcs1=0,mcs2=0,mcs_i=0,dual_stream_UE = 0,awgn_flag=0,round;
unsigned char i_mod = 2;
unsigned short NB_RB;
uint16_t tdd_config=3;
SCM_t channel_model=Rayleigh1;
// unsigned char *input_data,*decoded_output;
DCI_ALLOC_t da;
DCI_ALLOC_t *dci_alloc = &da;
unsigned int coded_bits_per_codeword=0,nsymb; //,tbs=0;
unsigned int tx_lev=0,tx_lev_dB=0,trials;
unsigned int errs[4],errs2[4],round_trials[4],dci_errors[4];//,num_layers;
memset(errs,0,4*sizeof(unsigned int));
memset(errs2,0,4*sizeof(unsigned int));
memset(round_trials,0,4*sizeof(unsigned int));
memset(dci_errors,0,4*sizeof(unsigned int));
//int re_allocated;
char fname[32],vname[32];
FILE *bler_fd;
char bler_fname[256];
FILE *time_meas_fd;
char time_meas_fname[256];
// FILE *tikz_fd;
// char tikz_fname[256];
FILE *input_trch_fd=NULL;
unsigned char input_trch_file=0;
FILE *input_fd=NULL;
unsigned char input_file=0;
int n_frames;
int n_ch_rlz = 1;
channel_desc_t *eNB2UE[4];
//uint8_t num_pdcch_symbols_2=0;
uint8_t rx_sample_offset = 0;
//char stats_buffer[4096];
//int len;
uint8_t num_rounds = 4;//,fix_rounds=0;
//int u;
int n=0;
int abstx=0;
//int iii;
int ch_realization;
//int pmi_feedback=0;
int hold_channel=0;
// void *data;
// int ii;
// int bler;
double blerr[4];
short *uncoded_ber_bit=NULL;
uint8_t N_RB_DL=25,osf=1;
frame_t frame_type = FDD;
int xforms=0;
FD_lte_phy_scope_ue *form_ue = NULL;
char title[255];
int numCCE=0;
//int dci_length_bytes=0,dci_length=0;
//double channel_bandwidth = 5.0, sampling_rate=7.68;
int common_flag=0,TPC=0;
double cpu_freq_GHz;
// time_stats_t ts;//,sts,usts;
int avg_iter,iter_trials;
int rballocset=0;
int print_perf=0;
int test_perf=0;
int test_passed=0;
int dump_table=0;
double effective_rate=0.0;
char channel_model_input[10]="I";
int TB0_active = 1;
uint32_t perfect_ce = 0;
// LTE_DL_UE_HARQ_t *dlsch0_ue_harq;
// LTE_DL_eNB_HARQ_t *dlsch0_eNB_harq;
uint8_t Kmimo;
uint8_t ue_category=4;
uint32_t Nsoft;
int sf;
int CCE_table[800];
int threequarter_fs=0;
opp_enabled=1; // to enable the time meas
FILE *csv_fd=NULL;
char csv_fname[32];
int dci_flag=0;
int two_thread_flag=0;
int DLSCH_RB_ALLOC = 0;
int dci_received;
PHY_VARS_eNB *eNB;
RU_t *ru;
PHY_VARS_UE *UE;
nfapi_dl_config_request_t DL_req;
nfapi_ul_config_request_t UL_req;
nfapi_hi_dci0_request_t HI_DCI0_req;
nfapi_dl_config_request_pdu_t dl_config_pdu_list[MAX_NUM_DL_PDU];
nfapi_tx_request_pdu_t tx_pdu_list[MAX_NUM_TX_REQUEST_PDU];
nfapi_tx_request_t TX_req;
Sched_Rsp_t sched_resp;
int pa=dB0;
#if defined(__arm__)
FILE *proc_fd = NULL;
char buf[64];
proc_fd = fopen("/sys/devices/system/cpu/cpu4/cpufreq/cpuinfo_cur_freq", "r");
if(!proc_fd)
printf("cannot open /sys/devices/system/cpu/cpu4/cpufreq/cpuinfo_cur_freq");
else {
while(fgets(buf, 63, proc_fd))
printf("%s", buf);
}
fclose(proc_fd);
cpu_freq_GHz = ((double)atof(buf))/1e6;
#else
cpu_freq_GHz = get_cpu_freq_GHz();
#endif
printf("Detected cpu_freq %f GHz\n",cpu_freq_GHz);
memset((void*)&sched_resp,0,sizeof(sched_resp));
sched_resp.DL_req = &DL_req;
sched_resp.UL_req = &UL_req;
sched_resp.HI_DCI0_req = &HI_DCI0_req;
sched_resp.TX_req = &TX_req;
memset((void*)&DL_req,0,sizeof(DL_req));
memset((void*)&UL_req,0,sizeof(UL_req));
memset((void*)&HI_DCI0_req,0,sizeof(HI_DCI0_req));
memset((void*)&TX_req,0,sizeof(TX_req));
DL_req.dl_config_request_body.dl_config_pdu_list = dl_config_pdu_list;
TX_req.tx_request_body.tx_pdu_list = tx_pdu_list;
cpuf = cpu_freq_GHz;
//signal(SIGSEGV, handler);
//signal(SIGABRT, handler);
// default parameters
n_frames = 1000;
snr0 = 0;
// num_layers = 1;
perfect_ce = 0;
while ((c = getopt (argc, argv, "ahdpZDe:Em:n:o:s:f:t:c:g:r:F:x:q:y:z:AM:N:I:i:O:R:S:C:T:b:u:v:w:B:Pl:WXYL:")) != -1) {
switch (c) {
case 'a':
awgn_flag = 1;
channel_model = AWGN;
break;
case 'A':
abstx = 1;
break;
case 'b':
tdd_config=atoi(optarg);
break;
case 'B':
N_RB_DL=atoi(optarg);
break;
case 'c':
num_pdcch_symbols=atoi(optarg);
break;
case 'C':
Nid_cell = atoi(optarg);
break;
case 'd':
dci_flag = 1;
break;
case 'D':
frame_type=TDD;
break;
case 'e':
num_rounds=1;
common_flag = 1;
TPC = atoi(optarg);
break;
case 'E':
threequarter_fs=1;
break;
case 'f':
input_snr_step= atof(optarg);
break;
case 'F':
forgetting_factor = atof(optarg);
break;
case 'i':
input_fd = fopen(optarg,"r");
input_file=1;
dci_flag = 1;
break;
case 'I':
input_trch_fd = fopen(optarg,"r");
input_trch_file=1;
break;
case 'W':
two_thread_flag = 1;
break;
case 'l':
offset_mumimo_llr_drange_fix=atoi(optarg);
break;
case 'm':
mcs1 = atoi(optarg);
break;
case 'M':
mcs2 = atoi(optarg);
break;
case 'O':
test_perf=atoi(optarg);
//print_perf =1;
break;
case 't':
mcs_i = atoi(optarg);
i_mod = get_Qm(mcs_i);
break;
case 'n':
n_frames = atoi(optarg);
break;
case 'o':
rx_sample_offset = atoi(optarg);
break;
case 'r':
DLSCH_RB_ALLOC = atoi(optarg);
rballocset = 1;
break;
case 's':
snr0 = atof(optarg);
break;
case 'w':
snr_int = atof(optarg);
break;
case 'N':
n_ch_rlz= atof(optarg);
break;
case 'p':
extended_prefix_flag=1;
break;
case 'g':
memcpy(channel_model_input,optarg,10);
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;
case 'H':
channel_model=Rayleigh8;
break;
case 'I':
channel_model=Rayleigh1;
break;
case 'J':
channel_model=Rayleigh1_corr;
break;
case 'K':
channel_model=Rayleigh1_anticorr;
break;
case 'L':
channel_model=Rice8;
break;
case 'M':
channel_model=Rice1;
break;
case 'N':
channel_model=AWGN;
break;
default:
printf("Unsupported channel model!\n");
exit(-1);
}
break;
case 'R':
num_rounds=atoi(optarg);
break;
case 'S':
subframe=atoi(optarg);
break;
case 'T':
n_rnti=atoi(optarg);
break;
case 'u':
dual_stream_UE=1;
UE->use_ia_receiver = 1;
if ((n_tx_port!=2) || (transmission_mode!=5)) {
printf("IA receiver only supported for TM5!");
exit(-1);
}
break;
case 'v':
i_mod = atoi(optarg);
if (i_mod!=2 && i_mod!=4 && i_mod!=6) {
printf("Wrong i_mod %d, should be 2,4 or 6\n",i_mod);
exit(-1);
}
break;
case 'P':
print_perf=1;
break;
case 'q':
n_tx_port=atoi(optarg);
if ((n_tx_port==0) || ((n_tx_port>2))) {
printf("Unsupported number of cell specific antennas ports %d\n",n_tx_port);
exit(-1);
}
break;
case 'x':
transmission_mode=atoi(optarg);
if ((transmission_mode!=1) &&
(transmission_mode!=2) &&
(transmission_mode!=3) &&
(transmission_mode!=4) &&
(transmission_mode!=5) &&
(transmission_mode!=6) &&
(transmission_mode!=7)) {
printf("Unsupported transmission mode %d\n",transmission_mode);
exit(-1);
}
if (transmission_mode>1 && transmission_mode<7) {
n_tx_port = 2;
}
break;
case 'y':
n_tx_phy=atoi(optarg);
if (n_tx_phy < n_tx_port) {
printf("n_tx_phy mush not be smaller than n_tx_port");
exit(-1);
}
if ((transmission_mode>1 && transmission_mode<7) && n_tx_port<2) {
printf("n_tx_port must be >1 for transmission_mode %d\n",transmission_mode);
exit(-1);
}
if (transmission_mode==7 && (n_tx_phy!=1 && n_tx_phy!=2 && n_tx_phy!=4 && n_tx_phy!=8 && n_tx_phy!=16 && n_tx_phy!=64 && n_tx_phy!=128)) {
printf("Physical number of antennas not supported for TM7.\n");
exit(-1);
}
break;
break;
case 'X':
xforms=1;
break;
case 'Y':
perfect_ce=1;
break;
case 'z':
n_rx=atoi(optarg);
if ((n_rx==0) || (n_rx>2)) {
printf("Unsupported number of rx antennas %d\n",n_rx);
exit(-1);
}
break;
case 'Z':
dump_table=1;
break;
case 'L':
loglvl = atoi(optarg);
break;
case 'h':
default:
printf("%s -h(elp) -a(wgn on) -d(ci decoding on) -p(extended prefix on) -m mcs1 -M mcs2 -n n_frames -s snr0 -x transmission mode (1,2,5,6,7) -y TXant -z RXant -I trch_file\n",argv[0]);
printf("-h This message\n");
printf("-a Use AWGN channel and not multipath\n");
printf("-c Number of PDCCH symbols\n");
printf("-m MCS1 for TB 1\n");
printf("-M MCS2 for TB 2\n");
printf("-d Transmit the DCI and compute its error statistics\n");
printf("-p Use extended prefix mode\n");
printf("-n Number of frames to simulate\n");
printf("-o Sample offset for receiver\n");
printf("-s Starting SNR, runs from SNR to SNR+%.1fdB in steps of %.1fdB. If n_frames is 1 then just SNR is simulated and MATLAB/OCTAVE output is generated\n", snr_int, snr_step);
printf("-f step size of SNR, default value is 1.\n");
printf("-C cell id\n");
printf("-S subframe\n");
printf("-D use TDD mode\n");
printf("-b TDD config\n");
printf("-B bandwidth configuration (in number of ressource blocks): 6, 25, 50, 100\n");
printf("-r ressource block allocation (see section 7.1.6.3 in 36.213\n");
printf("-g [A:M] Use 3GPP 25.814 SCM-A/B/C/D('A','B','C','D') or 36-101 EPA('E'), EVA ('F'),ETU('G') models (ignores delay spread and Ricean factor), Rayghleigh8 ('H'), Rayleigh1('I'), Rayleigh1_corr('J'), Rayleigh1_anticorr ('K'), Rice8('L'), Rice1('M')\n");
printf("-F forgetting factor (0 new channel every trial, 1 channel constant\n");
printf("-x Transmission mode (1,2,6,7 for the moment)\n");
printf("-q Number of TX antennas ports used in eNB\n");
printf("-y Number of TX antennas used in eNB\n");
printf("-z Number of RX antennas used in UE\n");
printf("-t MCS of interfering UE\n");
printf("-R Number of HARQ rounds (fixed)\n");
printf("-A Turns on calibration mode for abstraction.\n");
printf("-N Determines the number of Channel Realizations in Abstraction mode. Default value is 1. \n");
printf("-O Set the percenatge of effective rate to testbench the modem performance (typically 30 and 70, range 1-100) \n");
printf("-I Input filename for TrCH data (binary)\n");
printf("-u Enables the Interference Aware Receiver for TM5 (default is normal receiver)\n");
exit(1);
break;
}
}
set_parallel_conf("PARALLEL_RU_L1_TRX_SPLIT");
set_worker_conf("WORKER_ENABLE");
if (transmission_mode>1) pa=dBm3;
printf("dlsim: tmode %d, pa %d\n",transmission_mode,pa);
AssertFatal(load_configmodule(argc,argv) != NULL,
"cannot load configuration module, exiting\n");
logInit();
// enable these lines if you need debug info
set_glog(loglvl);
// moreover you need to init itti with the following line
// however itti will catch all signals, so ctrl-c won't work anymore
// alternatively you can disable ITTI completely in CMakeLists.txt
//itti_init(TASK_MAX, THREAD_MAX, MESSAGES_ID_MAX, tasks_info, messages_info, messages_definition_xml, NULL);
if (common_flag == 0) {
switch (N_RB_DL) {
case 6:
if (rballocset==0) DLSCH_RB_ALLOC = 0x3f;
num_pdcch_symbols = 3;
break;
case 25:
if (rballocset==0) DLSCH_RB_ALLOC = 0x1fff;
break;
case 50:
if (rballocset==0) DLSCH_RB_ALLOC = 0x1ffff;
break;
case 100:
if (rballocset==0) DLSCH_RB_ALLOC = 0x1ffffff;
break;
}
NB_RB=conv_nprb(0,DLSCH_RB_ALLOC,N_RB_DL);
} else
NB_RB = 4;
if (xforms==1) {
fl_initialize (&argc, argv, NULL, 0, 0);
form_ue = create_lte_phy_scope_ue();
sprintf (title, "LTE PHY SCOPE eNB");
fl_show_form (form_ue->lte_phy_scope_ue, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);
if (!dual_stream_UE==0) {
UE->use_ia_receiver = 1;
fl_set_button(form_ue->button_0,1);
fl_set_object_label(form_ue->button_0, "IA Receiver ON");
fl_set_object_color(form_ue->button_0, FL_GREEN, FL_GREEN);
}
}
if (transmission_mode==5) {
n_users = 2;
printf("dual_stream_UE=%d\n", dual_stream_UE);
}
RC.nb_L1_inst = 1;
RC.nb_RU = 1;
lte_param_init(&eNB,&UE,&ru,
n_tx_port,
n_tx_phy,
1,
n_rx,
transmission_mode,
extended_prefix_flag,
frame_type,
Nid_cell,
tdd_config,
N_RB_DL,
pa,
threequarter_fs,
osf,
perfect_ce);
RC.eNB = (PHY_VARS_eNB ***)malloc(sizeof(PHY_VARS_eNB **));
RC.eNB[0] = (PHY_VARS_eNB **)malloc(sizeof(PHY_VARS_eNB *));
RC.ru = (RU_t **)malloc(sizeof(RC.ru));
RC.eNB[0][0] = eNB;
RC.ru[0] = ru;
printf("lte_param_init done\n");
if ((transmission_mode==1) || (transmission_mode==7)) {
for (aa=0; aa<ru->nb_tx; aa++)
for (re=0; re<ru->frame_parms->ofdm_symbol_size; re++)
ru->beam_weights[0][0][aa][re] = 0x00007fff/eNB->frame_parms.nb_antennas_tx;
}
if (transmission_mode<7)
ru->do_precoding=0;
else
ru->do_precoding=1;
eNB->mac_enabled=1;
if (two_thread_flag == 0) {
eNB->te = dlsch_encoding;
}
else {
eNB->te = dlsch_encoding_2threads;
extern void init_td_thread(PHY_VARS_eNB *);
extern void init_te_thread(PHY_VARS_eNB *);
init_td_thread(eNB);
init_te_thread(eNB);
}
// callback functions required for phy_procedures_tx
// eNB_id_i = UE->n_connected_eNB;
printf("Setting mcs1 = %d\n",mcs1);
printf("Setting mcs2 = %d\n",mcs2);
printf("NPRB = %d\n",NB_RB);
printf("n_frames = %d\n",n_frames);
printf("Transmission mode %d with %dx%d antenna configuration, Extended Prefix %d\n",transmission_mode,n_tx_phy,n_rx,extended_prefix_flag);
snr1 = snr0+snr_int;
printf("SNR0 %f, SNR1 %f\n",snr0,snr1);
uint8_t input_buffer[NUMBER_OF_UE_MAX][20000];
for (i=0;i<n_users;i++)
for (j=0;j<20000;j++) input_buffer[i][j] = (uint8_t)((taus())&255);
frame_parms = &eNB->frame_parms;
nsymb = (eNB->frame_parms.Ncp == 0) ? 14 : 12;
printf("Channel Model= (%s,%d)\n",channel_model_input, channel_model);
printf("SCM-A=%d, SCM-B=%d, SCM-C=%d, SCM-D=%d, EPA=%d, EVA=%d, ETU=%d, Rayleigh8=%d, Rayleigh1=%d, Rayleigh1_corr=%d, Rayleigh1_anticorr=%d, Rice1=%d, Rice8=%d\n",
SCM_A, SCM_B, SCM_C, SCM_D, EPA, EVA, ETU, Rayleigh8, Rayleigh1, Rayleigh1_corr, Rayleigh1_anticorr, Rice1, Rice8);
if(transmission_mode==5)
sprintf(bler_fname,"bler_tx%d_chan%d_nrx%d_mcs%d_mcsi%d_u%d_imod%d.csv",transmission_mode,channel_model,n_rx,mcs1,mcs_i,dual_stream_UE,i_mod);
else
sprintf(bler_fname,"bler_tx%d_chan%d_nrx%d_mcs%d.csv",transmission_mode,channel_model,n_rx,mcs1);
bler_fd = fopen(bler_fname,"w");
if (bler_fd==NULL) {
fprintf(stderr,"Cannot create file %s!\n",bler_fname);
exit(-1);
}
fprintf(bler_fd,"SNR; MCS; TBS; rate; err0; trials0; err1; trials1; err2; trials2; err3; trials3; dci_err\n");
if (test_perf != 0) {
char hostname[1024];
hostname[1023] = '\0';
gethostname(hostname, 1023);
printf("Hostname: %s\n", hostname);
//char dirname[FILENAME_MAX];
//sprintf(dirname, "%s/SIMU/USER/pre-ci-logs-%s", getenv("OPENAIR_TARGETS"),hostname );
sprintf(time_meas_fname,"time_meas_prb%d_mcs%d_anttx%d_antrx%d_pdcch%d_channel%s_tx%d.csv",
N_RB_DL,mcs1,n_tx_phy,n_rx,num_pdcch_symbols,channel_model_input,transmission_mode);
//mkdir(dirname,0777);
time_meas_fd = fopen(time_meas_fname,"w");
if (time_meas_fd==NULL) {
fprintf(stderr,"Cannot create file %s!\n",time_meas_fname);
exit(-1);
}
}
if(abstx) {
// CSV file
sprintf(csv_fname,"dataout_tx%d_u2%d_mcs%d_chan%d_nsimus%d_R%d.m",transmission_mode,dual_stream_UE,mcs1,channel_model,n_frames,num_rounds);
csv_fd = fopen(csv_fname,"w");
fprintf(csv_fd,"data_all%d=[",mcs1);
if (csv_fd==NULL) {
fprintf(stderr,"Cannot create file %s!\n",csv_fname);
exit(-1);
}
}
/*
//sprintf(tikz_fname, "second_bler_tx%d_u2=%d_mcs%d_chan%d_nsimus%d.tex",transmission_mode,dual_stream_UE,mcs,channel_model,n_frames);
sprintf(tikz_fname, "second_bler_tx%d_u2%d_mcs%d_chan%d_nsimus%d",transmission_mode,dual_stream_UE,mcs,channel_model,n_frames);
tikz_fd = fopen(tikz_fname,"w");
//fprintf(tikz_fd,"\\addplot[color=red, mark=o] plot coordinates {");
switch (mcs)
{
case 0:
fprintf(tikz_fd,"\\addplot[color=blue, mark=star] plot coordinates {");
break;
case 1:
fprintf(tikz_fd,"\\addplot[color=red, mark=star] plot coordinates {");
break;
case 2:
fprintf(tikz_fd,"\\addplot[color=green, mark=star] plot coordinates {");
break;
case 3:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=star] plot coordinates {");
break;
case 4:
fprintf(tikz_fd,"\\addplot[color=black, mark=star] plot coordinates {");
break;
case 5:
fprintf(tikz_fd,"\\addplot[color=blue, mark=o] plot coordinates {");
break;
case 6:
fprintf(tikz_fd,"\\addplot[color=red, mark=o] plot coordinates {");
break;
case 7:
fprintf(tikz_fd,"\\addplot[color=green, mark=o] plot coordinates {");
break;
case 8:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=o] plot coordinates {");
break;
case 9:
fprintf(tikz_fd,"\\addplot[color=black, mark=o] plot coordinates {");
break;
case 10:
fprintf(tikz_fd,"\\addplot[color=blue, mark=square] plot coordinates {");
break;
case 11:
fprintf(tikz_fd,"\\addplot[color=red, mark=square] plot coordinates {");
break;
case 12:
fprintf(tikz_fd,"\\addplot[color=green, mark=square] plot coordinates {");
break;
case 13:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=square] plot coordinates {");
break;
case 14:
fprintf(tikz_fd,"\\addplot[color=black, mark=square] plot coordinates {");
break;
case 15:
fprintf(tikz_fd,"\\addplot[color=blue, mark=diamond] plot coordinates {");
break;
case 16:
fprintf(tikz_fd,"\\addplot[color=red, mark=diamond] plot coordinates {");
break;
case 17:
fprintf(tikz_fd,"\\addplot[color=green, mark=diamond] plot coordinates {");
break;
case 18:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=diamond] plot coordinates {");
break;
case 19:
fprintf(tikz_fd,"\\addplot[color=black, mark=diamond] plot coordinates {");
break;
case 20:
fprintf(tikz_fd,"\\addplot[color=blue, mark=x] plot coordinates {");
break;
case 21:
fprintf(tikz_fd,"\\addplot[color=red, mark=x] plot coordinates {");
break;
case 22:
fprintf(tikz_fd,"\\addplot[color=green, mark=x] plot coordinates {");
break;
case 23:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=x] plot coordinates {");
break;
case 24:
fprintf(tikz_fd,"\\addplot[color=black, mark=x] plot coordinates {");
break;
case 25:
fprintf(tikz_fd,"\\addplot[color=blue, mark=x] plot coordinates {");
break;
case 26:
fprintf(tikz_fd,"\\addplot[color=red, mark=+] plot coordinates {");
break;
case 27:
fprintf(tikz_fd,"\\addplot[color=green, mark=+] plot coordinates {");
break;
case 28:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=+] plot coordinates {");
break;
}
*/
UE->pdcch_vars[UE->current_thread_id[subframe]][0]->crnti = n_rnti;
UE->n_connected_eNB = 1;
printf("Allocating %dx%d eNB->UE channel descriptor\n",eNB->frame_parms.nb_antennas_tx,UE->frame_parms.nb_antennas_rx);
eNB2UE[0] = new_channel_desc_scm(eNB->frame_parms.nb_antennas_tx,
UE->frame_parms.nb_antennas_rx,
channel_model,
N_RB2sampling_rate(eNB->frame_parms.N_RB_DL),
N_RB2channel_bandwidth(eNB->frame_parms.N_RB_DL),
forgetting_factor,
rx_sample_offset,
0);
reset_meas(&eNB2UE[0]->random_channel);
reset_meas(&eNB2UE[0]->interp_time);
if(num_rounds>1) {
for(n=1; n<4; n++) {
eNB2UE[n] = new_channel_desc_scm(eNB->frame_parms.nb_antennas_tx,
UE->frame_parms.nb_antennas_rx,
channel_model,
N_RB2sampling_rate(eNB->frame_parms.N_RB_DL),
N_RB2channel_bandwidth(eNB->frame_parms.N_RB_DL),
forgetting_factor,
rx_sample_offset,
0);
reset_meas(&eNB2UE[n]->random_channel);
reset_meas(&eNB2UE[n]->interp_time);
}
}
if (eNB2UE[0]==NULL) {
printf("Problem generating channel model. Exiting.\n");
exit(-1);
}
if ((transmission_mode == 3) || (transmission_mode==4))
Kmimo=2;
else
Kmimo=1;
switch (ue_category) {
case 1:
Nsoft = 250368;
break;
case 2:
case 3:
Nsoft = 1237248;
break;
case 4:
Nsoft = 1827072;
break;
default:
printf("Unsupported UE category %d\n",ue_category);
exit(-1);
break;
}
for (k=0; k<NUMBER_OF_UE_MAX; k++) {
// Create transport channel structures for 2 transport blocks (MIMO)
for (i=0; i<2; i++) {
eNB->dlsch[k][i] = new_eNB_dlsch(Kmimo,8,Nsoft,N_RB_DL,0,&eNB->frame_parms);
if (!eNB->dlsch[k][i]) {
printf("Can't get eNB dlsch structures\n");
exit(-1);
}
eNB->dlsch[k][i]->rnti = n_rnti+k;
}
}
/* allocate memory for both subframes (only one is really used
* but there is now "copy_harq_proc_struct" which needs both
* to be valid)
* TODO: refine this somehow (necessary?)
*/
for (sf = 0; sf < 2; sf++) {
for (i=0; i<2; i++) {
UE->dlsch[sf][0][i] = new_ue_dlsch(Kmimo,8,Nsoft,MAX_TURBO_ITERATIONS,N_RB_DL,0);
if (!UE->dlsch[sf][0][i]) {
printf("Can't get ue dlsch structures\n");
exit(-1);
}
UE->dlsch[sf][0][i]->rnti = n_rnti;
}
}
UE->dlsch_SI[0] = new_ue_dlsch(1,1,Nsoft,MAX_TURBO_ITERATIONS,N_RB_DL,0);
UE->dlsch_ra[0] = new_ue_dlsch(1,1,Nsoft,MAX_TURBO_ITERATIONS,N_RB_DL,0);
UE->ulsch[0] = new_ue_ulsch(N_RB_DL,0);
// structure for SIC at UE
UE->dlsch_eNB[0] = new_eNB_dlsch(Kmimo,8,Nsoft,N_RB_DL,0,&eNB->frame_parms);
if (DLSCH_alloc_pdu2_1E[0].tpmi == 5) {
eNB->UE_stats[0].DL_pmi_single = (unsigned short)(taus()&0xffff);
if (n_users>1)
eNB->UE_stats[1].DL_pmi_single = (eNB->UE_stats[0].DL_pmi_single ^ 0x1555); //opposite PMI
} else {
eNB->UE_stats[0].DL_pmi_single = 0;
if (n_users>1)
eNB->UE_stats[1].DL_pmi_single = 0;
}
eNB_rxtx_proc_t *proc_eNB = &eNB->proc.proc_rxtx[0];//UE->current_thread_id[subframe]];
if (input_fd==NULL) {
DL_req.dl_config_request_body.number_pdcch_ofdm_symbols = num_pdcch_symbols;
DL_req.sfn_sf = (proc_eNB->frame_tx<<4)+subframe;
TX_req.sfn_sf = (proc_eNB->frame_tx<<4)+subframe;
// UE specific DCI
fill_DCI(eNB,
proc_eNB->frame_tx,subframe,
&sched_resp,
input_buffer,
n_rnti,
n_users,
transmission_mode,
0,
common_flag,
NB_RB,
DLSCH_RB_ALLOC,
TPC,
mcs1,
mcs2,
1,
0,
pa,
&num_common_dci,
&num_ue_spec_dci,
&num_dci);
numCCE = get_nCCE(num_pdcch_symbols,&eNB->frame_parms,get_mi(&eNB->frame_parms,subframe));
if (n_frames==1) printf("num_pdcch_symbols %d, numCCE %d, num_dci %d/%d/%d\n",num_pdcch_symbols,numCCE, num_dci,num_ue_spec_dci,num_common_dci);
}
snr_step = input_snr_step;
UE->high_speed_flag = 1;
UE->ch_est_alpha=0;
for (ch_realization=0; ch_realization<n_ch_rlz; ch_realization++) {
if(abstx) {
printf("**********************Channel Realization Index = %d **************************\n", ch_realization);
}
for (SNR=snr0; SNR<snr1; SNR+=snr_step) {
UE->proc.proc_rxtx[UE->current_thread_id[subframe]].frame_rx=0;
errs[0]=0;
errs[1]=0;
errs[2]=0;
errs[3]=0;
errs2[0]=0;
errs2[1]=0;
errs2[2]=0;
errs2[3]=0;
round_trials[0] = 0;
round_trials[1] = 0;
round_trials[2] = 0;
round_trials[3] = 0;
dci_errors[0]=0;
dci_errors[1]=0;
dci_errors[2]=0;
dci_errors[3]=0;
// avg_ber = 0;
round=0;
avg_iter = 0;
iter_trials=0;
reset_meas(&eNB->phy_proc_tx); // total eNB tx
reset_meas(&eNB->dlsch_scrambling_stats);
reset_meas(&UE->dlsch_unscrambling_stats);
reset_meas(&eNB->ofdm_mod_stats);
reset_meas(&eNB->dlsch_modulation_stats);
reset_meas(&eNB->dlsch_encoding_stats);
reset_meas(&eNB->dlsch_interleaving_stats);
reset_meas(&eNB->dlsch_rate_matching_stats);
reset_meas(&eNB->dlsch_turbo_encoding_stats);
reset_meas(&UE->phy_proc_rx[UE->current_thread_id[subframe]]); // total UE rx
reset_meas(&UE->ofdm_demod_stats);
reset_meas(&UE->dlsch_channel_estimation_stats);
reset_meas(&UE->dlsch_freq_offset_estimation_stats);
reset_meas(&UE->rx_dft_stats);
reset_meas(&UE->dlsch_decoding_stats[0]);
reset_meas(&UE->dlsch_decoding_stats[1]);
reset_meas(&UE->dlsch_turbo_decoding_stats);
reset_meas(&UE->dlsch_deinterleaving_stats);
reset_meas(&UE->dlsch_rate_unmatching_stats);
reset_meas(&UE->dlsch_tc_init_stats);
reset_meas(&UE->dlsch_tc_alpha_stats);
reset_meas(&UE->dlsch_tc_beta_stats);
reset_meas(&UE->dlsch_tc_gamma_stats);
reset_meas(&UE->dlsch_tc_ext_stats);
reset_meas(&UE->dlsch_tc_intl1_stats);
reset_meas(&UE->dlsch_tc_intl2_stats);
// initialization
struct list time_vector_tx;
initialize(&time_vector_tx);
struct list time_vector_tx_ifft;
initialize(&time_vector_tx_ifft);
struct list time_vector_tx_mod;
initialize(&time_vector_tx_mod);
struct list time_vector_tx_enc;
initialize(&time_vector_tx_enc);
struct list time_vector_rx;
initialize(&time_vector_rx);
struct list time_vector_rx_fft;
initialize(&time_vector_rx_fft);
struct list time_vector_rx_demod;
initialize(&time_vector_rx_demod);
struct list time_vector_rx_dec;
initialize(&time_vector_rx_dec);
for (trials = 0; trials<n_frames; trials++) {
//printf("Trial %d\n",trials);
fflush(stdout);
round=0;
//if (trials%100==0)
eNB2UE[0]->first_run = 1;
UE->dlsch[UE->current_thread_id[subframe]][eNB_id][0]->harq_ack[subframe].ack = 0;
UE->dlsch[UE->current_thread_id[subframe]][eNB_id][1]->harq_ack[subframe].ack = 0;
while ((round < num_rounds) && (UE->dlsch[UE->current_thread_id[subframe]][eNB_id][0]->harq_ack[subframe].ack == 0)) {
// printf("Trial %d, round %d\n",trials,round);
round_trials[round]++;
//if(transmission_mode>=5)
// pmi_feedback=1;
//else
// pmi_feedback=0;
if (abstx) {
if (trials==0 && round==0 && SNR==snr0) //generate a new channel
hold_channel = 0;
else
hold_channel = 1;
} else
hold_channel = 0;//(round==0) ? 0 : 1;
//PMI_FEEDBACK:
// printf("Trial %d : Round %d, pmi_feedback %d \n",trials,round,pmi_feedback);
for (aa=0; aa<eNB->frame_parms.nb_antennas_tx; aa++) {
memset(&eNB->common_vars.txdataF[aa][0],0,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX*sizeof(int32_t));
}
if (input_fd==NULL) {
// Simulate HARQ procedures!!!
memset(CCE_table,0,800*sizeof(int));
if (common_flag == 0) {
num_dci=0;
num_common_dci=0;
num_ue_spec_dci=0;
if (round == 0) { // First round
TB0_active = 1;
eNB->dlsch[0][0]->harq_processes[0]->rvidx = round&3;
DL_req.sfn_sf = (proc_eNB->frame_tx<<4)+subframe;
TX_req.sfn_sf = (proc_eNB->frame_tx<<4)+subframe;
fill_DCI(eNB,proc_eNB->frame_tx,subframe,&sched_resp,input_buffer,n_rnti,n_users,transmission_mode,0,common_flag,NB_RB,DLSCH_RB_ALLOC,TPC,
mcs1,mcs2,!(trials&1),round&3,pa,&num_common_dci,&num_ue_spec_dci,&num_dci);
}
else {
DL_req.sfn_sf = (proc_eNB->frame_tx<<4)+subframe;
TX_req.sfn_sf = (proc_eNB->frame_tx<<4)+subframe;
fill_DCI(eNB,proc_eNB->frame_tx,subframe,&sched_resp,input_buffer,n_rnti,n_users,transmission_mode,1,common_flag,NB_RB,DLSCH_RB_ALLOC,TPC,
(TB0_active==1)?mcs1:0,mcs2,!(trials&1),(TB0_active==1)?round&3:0,pa,&num_common_dci,&num_ue_spec_dci,&num_dci);
}
}
proc_eNB->subframe_tx = subframe;
sched_resp.subframe=subframe;
sched_resp.frame=proc_eNB->frame_tx;
eNB->abstraction_flag=0;
schedule_response(&sched_resp);
phy_procedures_eNB_TX(eNB,proc_eNB,1);
if (uncoded_ber_bit == NULL) {
// this is for user 0 only
printf("nb_rb %d, rb_alloc %x, mcs %d\n",
eNB->dlsch[0][0]->harq_processes[0]->nb_rb,
eNB->dlsch[0][0]->harq_processes[0]->rb_alloc[0],
eNB->dlsch[0][0]->harq_processes[0]->mcs);
coded_bits_per_codeword = get_G(&eNB->frame_parms,
eNB->dlsch[0][0]->harq_processes[0]->nb_rb,
eNB->dlsch[0][0]->harq_processes[0]->rb_alloc,
get_Qm(eNB->dlsch[0][0]->harq_processes[0]->mcs),
eNB->dlsch[0][0]->harq_processes[0]->Nl,
num_pdcch_symbols,
0,
subframe,
transmission_mode>=7?transmission_mode:0);
uncoded_ber_bit = (short*) malloc(sizeof(short)*coded_bits_per_codeword);
printf("uncoded_ber_bit=%p\n",uncoded_ber_bit);
}
start_meas(&eNB->ofdm_mod_stats);
ru->proc.subframe_tx=subframe;
memcpy((void*)ru->frame_parms,(void*)&eNB->frame_parms,sizeof(LTE_DL_FRAME_PARMS));
feptx_prec(ru);
feptx_ofdm(ru);
stop_meas(&eNB->ofdm_mod_stats);
// generate next subframe for channel estimation
DL_req.dl_config_request_body.number_dci=0;
DL_req.dl_config_request_body.number_pdu=0;
TX_req.tx_request_body.number_of_pdus=0;
proc_eNB->subframe_tx = subframe+1;
sched_resp.subframe=subframe+1;
schedule_response(&sched_resp);
phy_procedures_eNB_TX(eNB,proc_eNB,0);
ru->proc.subframe_tx=(subframe+1)%10;
feptx_prec(ru);
feptx_ofdm(ru);
proc_eNB->frame_tx++;
tx_lev = 0;
for (aa=0; aa<eNB->frame_parms.nb_antennas_tx; aa++) {
tx_lev += signal_energy(&ru->common.txdata[aa]
[subframe*eNB->frame_parms.samples_per_tti],
eNB->frame_parms.samples_per_tti);
}
tx_lev_dB = (unsigned int) dB_fixed(tx_lev);
if (n_frames==1) {
printf("tx_lev = %d (%d dB)\n",tx_lev,tx_lev_dB);
LOG_M("txsig0.m","txs0", &ru->common.txdata[0][subframe* eNB->frame_parms.samples_per_tti], eNB->frame_parms.samples_per_tti,1,1);
if (transmission_mode<7) {
LOG_M("txsigF0.m","txsF0x", &ru->common.txdataF_BF[0][subframe*nsymb*eNB->frame_parms.ofdm_symbol_size],nsymb*eNB->frame_parms.ofdm_symbol_size,1,1);
} else if (transmission_mode == 7) {
LOG_M("txsigF0.m","txsF0", &ru->common.txdataF_BF[5][subframe*nsymb*eNB->frame_parms.ofdm_symbol_size],nsymb*eNB->frame_parms.ofdm_symbol_size,1,1);
LOG_M("txsigF0_BF.m","txsF0_BF", &ru->common.txdataF_BF[0][0],eNB->frame_parms.ofdm_symbol_size,1,1);
}
}
}
DL_channel(ru,UE,subframe,awgn_flag,SNR,tx_lev,hold_channel,abstx,num_rounds,trials,round,eNB2UE,s_re,s_im,r_re,r_im,csv_fd);
UE_rxtx_proc_t *proc = &UE->proc.proc_rxtx[UE->current_thread_id[subframe]];
proc->subframe_rx = subframe;
UE->UE_mode[0] = PUSCH;
// first symbol has to be done separately in one-shot mode
slot_fep(UE,
0,
(proc->subframe_rx<<1),
UE->rx_offset,
0,
0);
if (n_frames==1) printf("Running phy_procedures_UE_RX\n");
if (dci_flag==0) {
memcpy(dci_alloc,eNB->pdcch_vars[subframe&1].dci_alloc,num_dci*sizeof(DCI_ALLOC_t));
UE->pdcch_vars[UE->current_thread_id[proc->subframe_rx]][eNB_id]->num_pdcch_symbols = num_pdcch_symbols;
if (n_frames==1)
printf("bypassing PDCCH/DCI detection\n");
if (generate_ue_dlsch_params_from_dci(proc->frame_rx,
proc->subframe_rx,
(void *)&dci_alloc[0].dci_pdu,
n_rnti,
dci_alloc[0].format,
UE->pdcch_vars[UE->current_thread_id[proc->subframe_rx]][eNB_id],
UE->pdsch_vars[UE->current_thread_id[proc->subframe_rx]][eNB_id],
UE->dlsch[UE->current_thread_id[proc->subframe_rx]][0],
&UE->frame_parms,
UE->pdsch_config_dedicated,
SI_RNTI,
0,
P_RNTI,
UE->transmission_mode[eNB_id]<7?0:UE->transmission_mode[eNB_id],
0)==0) {
dump_dci(&UE->frame_parms, &dci_alloc[0]);
//UE->dlsch[UE->current_thread_id[proc->subframe_rx]][eNB_id][0]->active = 1;
//UE->dlsch[UE->current_thread_id[proc->subframe_rx]][eNB_id][1]->active = 1;
UE->pdcch_vars[UE->current_thread_id[proc->subframe_rx]][eNB_id]->num_pdcch_symbols = num_pdcch_symbols;
UE->dlsch_received[eNB_id]++;
} else {
LOG_E(PHY,"Problem in DCI!\n");
}
}
dci_received = UE->pdcch_vars[UE->current_thread_id[proc->subframe_rx]][eNB_id]->dci_received;
phy_procedures_UE_RX(UE,proc,0,0,dci_flag,normal_txrx);
dci_received = dci_received - UE->pdcch_vars[UE->current_thread_id[proc->subframe_rx]][eNB_id]->dci_received;
if (dci_flag && (dci_received == 0)) {
printf("DCI not received\n");
dci_errors[round]++;
LOG_M("pdcchF0_ext.m","pdcchF_ext", UE->pdcch_vars[0][eNB_id]->rxdataF_ext[0],2*3*UE->frame_parms.ofdm_symbol_size,1,1);
LOG_M("pdcch00_ch0_ext.m","pdcch00_ch0_ext",UE->pdcch_vars[0][eNB_id]->dl_ch_estimates_ext[0],300*3,1,1);
LOG_M("pdcch_rxF_comp0.m","pdcch0_rxF_comp0",UE->pdcch_vars[0][eNB_id]->rxdataF_comp[0],4*300,1,1);
LOG_M("pdcch_rxF_llr.m","pdcch_llr",UE->pdcch_vars[0][eNB_id]->llr,2400,1,4);
LOG_M("rxsig0.m","rxs0", &UE->common_vars.rxdata[0][0],10*UE->frame_parms.samples_per_tti,1,1);
LOG_M("rxsigF0.m","rxsF0", &UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].rxdataF[0][0],UE->frame_parms.ofdm_symbol_size*nsymb,1,1);
exit(-1);
}
int bit_errors=0;
if ((test_perf ==0 ) && (n_frames==1)) {
dlsch_unscrambling(&eNB->frame_parms,
0,
UE->dlsch[UE->current_thread_id[subframe]][0][0],
coded_bits_per_codeword,
UE->pdsch_vars[UE->current_thread_id[subframe]][0]->llr[0],
0,
subframe<<1);
for (i=0;i<coded_bits_per_codeword;i++)
if ((eNB->dlsch[0][0]->harq_processes[0]->e[i]==1 && UE->pdsch_vars[UE->current_thread_id[subframe]][0]->llr[0][i] > 0)||
(eNB->dlsch[0][0]->harq_processes[0]->e[i]==0 && UE->pdsch_vars[UE->current_thread_id[subframe]][0]->llr[0][i] < 0)) {
uncoded_ber_bit[bit_errors++] = 1;
printf("error in pos %d : %d => %d\n",i,
eNB->dlsch[0][0]->harq_processes[0]->e[i],
UE->pdsch_vars[UE->current_thread_id[subframe]][0]->llr[0][i]);
}
else {
/*
printf("no error in pos %d : %d => %d\n",i,
eNB->dlsch[0][0]->harq_processes[0]->e[i],
UE->pdsch_vars[UE->current_thread_id[subframe]][0]->llr[0][i]);
*/
}
LOG_M("dlsch_ber_bit.m","ber_bit",uncoded_ber_bit,coded_bits_per_codeword,1,0);
LOG_M("ch0.m","ch0",eNB2UE[0]->ch[0],eNB2UE[0]->channel_length,1,8);
if (eNB->frame_parms.nb_antennas_tx>1)
LOG_M("ch1.m","ch1",eNB2UE[0]->ch[eNB->frame_parms.nb_antennas_rx],eNB2UE[0]->channel_length,1,8);
//common vars
LOG_M("rxsig0.m","rxs0", &UE->common_vars.rxdata[0][0],10*UE->frame_parms.samples_per_tti,1,1);
LOG_M("rxsigF0.m","rxsF0", &UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].rxdataF[0][0],UE->frame_parms.ofdm_symbol_size*nsymb,1,1);
if (UE->frame_parms.nb_antennas_rx>1) {
LOG_M("rxsig1.m","rxs1", UE->common_vars.rxdata[1],UE->frame_parms.samples_per_tti,1,1);
LOG_M("rxsigF1.m","rxsF1", UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].rxdataF[1],UE->frame_parms.ofdm_symbol_size*nsymb,1,1);
}
LOG_M("dlsch00_r0.m","dl00_r0",
&(UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].dl_ch_estimates[eNB_id][0][0]),
UE->frame_parms.ofdm_symbol_size*nsymb,1,1);
if (UE->frame_parms.nb_antennas_rx>1)
LOG_M("dlsch01_r0.m","dl01_r0",
&(UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].dl_ch_estimates[eNB_id][1][0]),
UE->frame_parms.ofdm_symbol_size*nsymb,1,1);
if (eNB->frame_parms.nb_antennas_tx>1)
LOG_M("dlsch10_r0.m","dl10_r0",
&(UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].dl_ch_estimates[eNB_id][2][0]),
UE->frame_parms.ofdm_symbol_size*nsymb,1,1);
if ((UE->frame_parms.nb_antennas_rx>1) && (eNB->frame_parms.nb_antennas_tx>1))
LOG_M("dlsch11_r0.m","dl11_r0",
&(UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].dl_ch_estimates[eNB_id][3][0]),
UE->frame_parms.ofdm_symbol_size*nsymb/2,1,1);
//pdsch_vars
printf("coded_bits_per_codeword %d\n",coded_bits_per_codeword);
dump_dlsch2(UE,eNB_id,subframe,&coded_bits_per_codeword,round, UE->dlsch[UE->current_thread_id[subframe]][0][0]->current_harq_pid);
LOG_M("dlsch_e.m","e",eNB->dlsch[0][0]->harq_processes[0]->e,coded_bits_per_codeword,1,4);
//pdcch_vars
LOG_M("pdcchF0_ext.m","pdcchF_ext", UE->pdcch_vars[0][eNB_id]->rxdataF_ext[0],2*3*UE->frame_parms.ofdm_symbol_size,1,1);
LOG_M("pdcch00_ch0_ext.m","pdcch00_ch0_ext",UE->pdcch_vars[0][eNB_id]->dl_ch_estimates_ext[0],300*3,1,1);
LOG_M("pdcch_rxF_comp0.m","pdcch0_rxF_comp0",UE->pdcch_vars[0][eNB_id]->rxdataF_comp[0],4*300,1,1);
LOG_M("pdcch_rxF_llr.m","pdcch_llr",UE->pdcch_vars[0][eNB_id]->llr,2400,1,4);
}
if (UE->dlsch[UE->current_thread_id[subframe]][eNB_id][0]->harq_ack[subframe].ack == 1) {
avg_iter += UE->dlsch[UE->current_thread_id[subframe]][eNB_id][0]->last_iteration_cnt;
iter_trials++;
if (n_frames==1)
printf("No DLSCH errors found (round %d),uncoded ber %f\n",round,(double)bit_errors/coded_bits_per_codeword);
UE->total_TBS[eNB_id] = UE->total_TBS[eNB_id] + UE->dlsch[UE->current_thread_id[subframe]][eNB_id][0]->harq_processes[UE->dlsch[UE->current_thread_id[subframe]][eNB_id][0]->current_harq_pid]->TBS;
TB0_active = 0;
} // DLSCH received ok
else {
errs[round]++;
avg_iter += UE->dlsch[UE->current_thread_id[subframe]][eNB_id][0]->last_iteration_cnt-1;
iter_trials++;
if (n_frames==1) {
//if ((n_frames==1) || (SNR>=30)) {
printf("DLSCH errors found (round %d), uncoded ber %f\n",round,(double)bit_errors/coded_bits_per_codeword);
for (s=0; s<UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->C; s++) {
if (s<UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->Cminus)
Kr = UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->Kminus;
else
Kr = UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->Kplus;
Kr_bytes = Kr>>3;
printf("Decoded_output (Segment %d):\n",s);
for (i=0; i<Kr_bytes; i++)
printf("%d : %x (%x)\n",i,UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->c[s][i],UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->c[s][i]^eNB->dlsch[0][0]->harq_processes[0]->c[s][i]);
}
sprintf(fname,"rxsig0_r%d.m",round);
sprintf(vname,"rxs0_r%d",round);
LOG_M(fname,vname, &UE->common_vars.rxdata[0][0],10*UE->frame_parms.samples_per_tti,1,1);
sprintf(fname,"rxsigF0_r%d.m",round);
sprintf(vname,"rxs0F_r%d",round);
LOG_M(fname,vname, &UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].rxdataF[0][0],UE->frame_parms.ofdm_symbol_size*nsymb,1,1);
if (UE->frame_parms.nb_antennas_rx>1) {
sprintf(fname,"rxsig1_r%d.m",round);
sprintf(vname,"rxs1_r%d.m",round);
LOG_M(fname,vname, UE->common_vars.rxdata[1],UE->frame_parms.samples_per_tti,1,1);
sprintf(fname,"rxsigF1_r%d.m",round);
sprintf(vname,"rxs1F_r%d.m",round);
LOG_M(fname,vname, UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].rxdataF[1],UE->frame_parms.ofdm_symbol_size*nsymb,1,1);
}
sprintf(fname,"dlsch00_r%d.m",round);
sprintf(vname,"dl00_r%d",round);
LOG_M(fname,vname,
&(UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].dl_ch_estimates[eNB_id][0][0]),
UE->frame_parms.ofdm_symbol_size*nsymb,1,1);
if (UE->frame_parms.nb_antennas_rx>1) {
sprintf(fname,"dlsch01_r%d.m",round);
sprintf(vname,"dl01_r%d",round);
LOG_M(fname,vname,
&(UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].dl_ch_estimates[eNB_id][1][0]),
UE->frame_parms.ofdm_symbol_size*nsymb/2,1,1);
}
if (eNB->frame_parms.nb_antennas_tx>1) {
sprintf(fname,"dlsch10_r%d.m",round);
sprintf(vname,"dl10_r%d",round);
LOG_M(fname,vname,
&(UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].dl_ch_estimates[eNB_id][2][0]),
UE->frame_parms.ofdm_symbol_size*nsymb/2,1,1);
}
if ((UE->frame_parms.nb_antennas_rx>1) && (eNB->frame_parms.nb_antennas_tx>1)) {
sprintf(fname,"dlsch11_r%d.m",round);
sprintf(vname,"dl11_r%d",round);
LOG_M(fname,vname,
&(UE->common_vars.common_vars_rx_data_per_thread[UE->current_thread_id[subframe]].dl_ch_estimates[eNB_id][3][0]),
UE->frame_parms.ofdm_symbol_size*nsymb/2,1,1);
}
//pdsch_vars
dump_dlsch2(UE,eNB_id,subframe,&coded_bits_per_codeword,round, UE->dlsch[UE->current_thread_id[subframe]][0][0]->current_harq_pid);
//LOG_M("dlsch_e.m","e",eNB->dlsch[0][0]->harq_processes[0]->e,coded_bits_per_codeword,1,4);
//LOG_M("dlsch_ber_bit.m","ber_bit",uncoded_ber_bit,coded_bits_per_codeword,1,0);
//LOG_M("dlsch_w.m","w",eNB->dlsch[0][0]->harq_processes[0]->w[0],3*(tbs+64),1,4);
//LOG_M("dlsch_w.m","w",UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->w[0],3*(tbs+64),1,0);
//pdcch_vars
LOG_M("pdcchF0_ext.m","pdcchF_ext", UE->pdcch_vars[0][eNB_id]->rxdataF_ext[0],2*3*UE->frame_parms.ofdm_symbol_size,1,1);
LOG_M("pdcch00_ch0_ext.m","pdcch00_ch0_ext",UE->pdcch_vars[0][eNB_id]->dl_ch_estimates_ext[0],300*3,1,1);
LOG_M("pdcch_rxF_comp0.m","pdcch0_rxF_comp0",UE->pdcch_vars[0][eNB_id]->rxdataF_comp[0],4*300,1,1);
LOG_M("pdcch_rxF_llr.m","pdcch_llr",UE->pdcch_vars[0][eNB_id]->llr,2400,1,4);
if (round == 3) exit(-1);
}
// printf("round %d errors %d/%d\n",round,errs[round],trials);
round++;
// UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->round++;
}
if (xforms==1) {
phy_scope_UE(form_ue,
UE,
eNB_id,
0,// UE_id
subframe);
}
UE->proc.proc_rxtx[UE->current_thread_id[subframe]].frame_rx++;
} //round
// printf("\n");
if ((errs[0]>=n_frames/10) && (trials>(n_frames/2)))
break;
//len = chbch_stats_read(stats_buffer,NULL,0,4096);
//printf("%s\n\n",stats_buffer);
if (UE->proc.proc_rxtx[UE->current_thread_id[subframe]].frame_rx % 10 == 0) {
UE->bitrate[eNB_id] = (UE->total_TBS[eNB_id] - UE->total_TBS_last[eNB_id])*10;
LOG_D(PHY,"[UE %d] Calculating bitrate: total_TBS = %d, total_TBS_last = %d, bitrate = %d kbits/s\n",UE->Mod_id,UE->total_TBS[eNB_id],UE->total_TBS_last[eNB_id],
UE->bitrate[eNB_id]/1000);
UE->total_TBS_last[eNB_id] = UE->total_TBS[eNB_id];
}
/* calculate the total processing time for each packet,
* get the max, min, and number of packets that exceed t>2000us
*/
double t_tx = (double)eNB->phy_proc_tx.p_time/cpu_freq_GHz/1000.0;
double t_tx_ifft = (double)eNB->ofdm_mod_stats.p_time/cpu_freq_GHz/1000.0;
double t_tx_mod = (double)eNB->dlsch_modulation_stats.p_time/cpu_freq_GHz/1000.0;
double t_tx_enc = (double)eNB->dlsch_encoding_stats.p_time/cpu_freq_GHz/1000.0;
double t_rx = (double)UE->phy_proc_rx[UE->current_thread_id[subframe]].p_time/cpu_freq_GHz/1000.0;
double t_rx_fft = (double)UE->ofdm_demod_stats.p_time/cpu_freq_GHz/1000.0;
double t_rx_demod = (double)UE->dlsch_rx_pdcch_stats.p_time/cpu_freq_GHz/1000.0;
double t_rx_dec = (double)UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].p_time/cpu_freq_GHz/1000.0;
if (t_tx > t_tx_max)
t_tx_max = t_tx;
if (t_tx < t_tx_min)
t_tx_min = t_tx;
if (t_rx > t_rx_max)
t_rx_max = t_rx;
if (t_rx < t_rx_min)
t_rx_min = t_rx;
if (t_tx > 2000)
n_tx_dropped++;
if (t_rx > 2000)
n_rx_dropped++;
push_front(&time_vector_tx, t_tx);
push_front(&time_vector_tx_ifft, t_tx_ifft);
push_front(&time_vector_tx_mod, t_tx_mod);
push_front(&time_vector_tx_enc, t_tx_enc);
push_front(&time_vector_rx, t_rx);
push_front(&time_vector_rx_fft, t_rx_fft);
push_front(&time_vector_rx_demod, t_rx_demod);
push_front(&time_vector_rx_dec, t_rx_dec);
} //trials
// round_trials[0]: number of code word : goodput the protocol
double table_tx[time_vector_tx.size];
totable(table_tx, &time_vector_tx);
double table_tx_ifft[time_vector_tx_ifft.size];
totable(table_tx_ifft, &time_vector_tx_ifft);
double table_tx_mod[time_vector_tx_mod.size];
totable(table_tx_mod, &time_vector_tx_mod);
double table_tx_enc[time_vector_tx_enc.size];
totable(table_tx_enc, &time_vector_tx_enc);
double table_rx[time_vector_rx.size];
totable(table_rx, &time_vector_rx);
double table_rx_fft[time_vector_rx_fft.size];
totable(table_rx_fft, &time_vector_rx_fft);
double table_rx_demod[time_vector_rx_demod.size];
totable(table_rx_demod, &time_vector_rx_demod);
double table_rx_dec[time_vector_rx_dec.size];
totable(table_rx_dec, &time_vector_rx_dec);
// sort table
qsort (table_tx, time_vector_tx.size, sizeof(double), &compare);
qsort (table_rx, time_vector_rx.size, sizeof(double), &compare);
if (dump_table == 1 ) {
set_component_filelog(SIM); // file located in /tmp/usim.txt
LOG_UDUMPMSG(SIM,table_tx,time_vector_tx.size,LOG_DUMP_DOUBLE,"The transmitter raw data: \n");
LOG_UDUMPMSG(SIM,table_rx,time_vector_rx.size,LOG_DUMP_DOUBLE,"Thereceiver raw data: \n");
}
double tx_median = table_tx[time_vector_tx.size/2];
double tx_q1 = table_tx[time_vector_tx.size/4];
double tx_q3 = table_tx[3*time_vector_tx.size/4];
double tx_ifft_median = table_tx_ifft[time_vector_tx_ifft.size/2];
double tx_ifft_q1 = table_tx_ifft[time_vector_tx_ifft.size/4];
double tx_ifft_q3 = table_tx_ifft[3*time_vector_tx_ifft.size/4];
double tx_mod_median = table_tx_mod[time_vector_tx_mod.size/2];
double tx_mod_q1 = table_tx_mod[time_vector_tx_mod.size/4];
double tx_mod_q3 = table_tx_mod[3*time_vector_tx_mod.size/4];
double tx_enc_median = table_tx_enc[time_vector_tx_enc.size/2];
double tx_enc_q1 = table_tx_enc[time_vector_tx_enc.size/4];
double tx_enc_q3 = table_tx_enc[3*time_vector_tx_enc.size/4];
double rx_median = table_rx[time_vector_rx.size/2];
double rx_q1 = table_rx[time_vector_rx.size/4];
double rx_q3 = table_rx[3*time_vector_rx.size/4];
double rx_fft_median = table_rx_fft[time_vector_rx_fft.size/2];
double rx_fft_q1 = table_rx_fft[time_vector_rx_fft.size/4];
double rx_fft_q3 = table_rx_fft[3*time_vector_rx_fft.size/4];
double rx_demod_median = table_rx_demod[time_vector_rx_demod.size/2];
double rx_demod_q1 = table_rx_demod[time_vector_rx_demod.size/4];
double rx_demod_q3 = table_rx_demod[3*time_vector_rx_demod.size/4];
double rx_dec_median = table_rx_dec[time_vector_rx_dec.size/2];
double rx_dec_q1 = table_rx_dec[time_vector_rx_dec.size/4];
double rx_dec_q3 = table_rx_dec[3*time_vector_rx_dec.size/4];
double std_phy_proc_tx=0;
double std_phy_proc_tx_ifft=0;
double std_phy_proc_tx_mod=0;
double std_phy_proc_tx_enc=0;
double std_phy_proc_rx=0;
double std_phy_proc_rx_fft=0;
double std_phy_proc_rx_demod=0;
double std_phy_proc_rx_dec=0;
effective_rate = 1.0-((double)(errs[0]+errs[1]+errs[2]+errs[3])/((double)round_trials[0] + round_trials[1] + round_trials[2] + round_trials[3]));
printf("\n**********************SNR = %f dB (tx_lev %f)**************************\n",
SNR,
(double)tx_lev_dB+10*log10(UE->frame_parms.ofdm_symbol_size/(NB_RB*12)));
printf("Errors (%d(%d)/%d %d/%d %d/%d %d/%d), Pe = (%e,%e,%e,%e), dci_errors %d/%d, Pe = %e => effective rate %f, normalized delay %f (%f)\n",
errs[0],
errs2[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
(double)errs[0]/(round_trials[0]),
(double)errs[1]/(round_trials[1]),
(double)errs[2]/(round_trials[2]),
(double)errs[3]/(round_trials[3]),
dci_errors[0]+dci_errors[1]+dci_errors[2]+dci_errors[3],
round_trials[0]+round_trials[1]+round_trials[2]+round_trials[3],
(double)(dci_errors[0]+dci_errors[1]+dci_errors[2]+dci_errors[3])/(round_trials[0]+round_trials[1]+round_trials[2]+round_trials[3]),
//rate*effective_rate,
100*effective_rate,
//rate,
//rate*get_Qm(UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[UE->dlsch[UE->current_thread_id[subframe]][0][0]->current_harq_pid]->mcs),
(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0])/
(double)eNB->dlsch[0][0]->harq_processes[0]->TBS,
(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0]));
if (print_perf==1) {
printf("eNB TX function statistics (per 1ms subframe)\n\n");
std_phy_proc_tx = sqrt((double)eNB->phy_proc_tx.diff_square/pow(cpu_freq_GHz,2)/pow(1000,
2)/eNB->phy_proc_tx.trials - pow((double)eNB->phy_proc_tx.diff/eNB->phy_proc_tx.trials/cpu_freq_GHz/1000,2));
std_phy_proc_tx_ifft = sqrt((double)eNB->ofdm_mod_stats.diff_square/pow(cpu_freq_GHz,2)/pow(1000,
2)/eNB->ofdm_mod_stats.trials - pow((double)eNB->ofdm_mod_stats.diff/eNB->ofdm_mod_stats.trials/cpu_freq_GHz/1000,2));
printf("OFDM_mod time :%f us (%d trials)\n",(double)eNB->ofdm_mod_stats.diff/eNB->ofdm_mod_stats.trials/cpu_freq_GHz/1000.0,eNB->ofdm_mod_stats.trials);
printf("|__ Statistcs std: %fus median %fus q1 %fus q3 %fus \n",std_phy_proc_tx_ifft, tx_ifft_median, tx_ifft_q1, tx_ifft_q3);
printf("Total PHY proc tx :%f us (%d trials)\n",(double)eNB->phy_proc_tx.diff/eNB->phy_proc_tx.trials/cpu_freq_GHz/1000.0,eNB->phy_proc_tx.trials);
printf("|__ Statistcs std: %fus max: %fus min: %fus median %fus q1 %fus q3 %fus n_dropped: %d packet \n",std_phy_proc_tx, t_tx_max, t_tx_min, tx_median, tx_q1, tx_q3,
n_tx_dropped);
std_phy_proc_tx_mod = sqrt((double)eNB->dlsch_modulation_stats.diff_square/pow(cpu_freq_GHz,2)/pow(1000,
2)/eNB->dlsch_modulation_stats.trials - pow((double)eNB->dlsch_modulation_stats.diff/eNB->dlsch_modulation_stats.trials/cpu_freq_GHz/1000,2));
printf("DLSCH modulation time :%f us (%d trials)\n",(double)eNB->dlsch_modulation_stats.diff/eNB->dlsch_modulation_stats.trials/cpu_freq_GHz/1000.0,
eNB->dlsch_modulation_stats.trials);
printf("|__ Statistcs std: %fus median %fus q1 %fus q3 %fus \n",std_phy_proc_tx_mod, tx_mod_median, tx_mod_q1, tx_mod_q3);
printf("DLSCH scrambling time :%f us (%d trials)\n",(double)eNB->dlsch_scrambling_stats.diff/eNB->dlsch_scrambling_stats.trials/cpu_freq_GHz/1000.0,
eNB->dlsch_scrambling_stats.trials);
std_phy_proc_tx_enc = sqrt((double)eNB->dlsch_encoding_stats.diff_square/pow(cpu_freq_GHz,2)/pow(1000,
2)/eNB->dlsch_encoding_stats.trials - pow((double)eNB->dlsch_encoding_stats.diff/eNB->dlsch_encoding_stats.trials/cpu_freq_GHz/1000,2));
printf("DLSCH encoding time :%f us (%d trials)\n",(double)eNB->dlsch_encoding_stats.diff/eNB->dlsch_encoding_stats.trials/cpu_freq_GHz/1000.0,
eNB->dlsch_modulation_stats.trials);
printf("|__ Statistcs std: %fus median %fus q1 %fus q3 %fus \n",std_phy_proc_tx_enc, tx_enc_median, tx_enc_q1, tx_enc_q3);
printf("|__ DLSCH turbo encoding time :%f us (%d trials)\n",
((double)eNB->dlsch_turbo_encoding_stats.trials/eNB->dlsch_encoding_stats.trials)*(double)
eNB->dlsch_turbo_encoding_stats.diff/eNB->dlsch_turbo_encoding_stats.trials/cpu_freq_GHz/1000.0,eNB->dlsch_turbo_encoding_stats.trials);
printf("|__ DLSCH rate-matching time :%f us (%d trials)\n",
((double)eNB->dlsch_rate_matching_stats.trials/eNB->dlsch_encoding_stats.trials)*(double)
eNB->dlsch_rate_matching_stats.diff/eNB->dlsch_rate_matching_stats.trials/cpu_freq_GHz/1000.0,eNB->dlsch_rate_matching_stats.trials);
printf("|__ DLSCH sub-block interleaving time :%f us (%d trials)\n",
((double)eNB->dlsch_interleaving_stats.trials/eNB->dlsch_encoding_stats.trials)*(double)
eNB->dlsch_interleaving_stats.diff/eNB->dlsch_interleaving_stats.trials/cpu_freq_GHz/1000.0,eNB->dlsch_interleaving_stats.trials);
printf("\n\nUE RX function statistics (per 1ms subframe)\n\n");
std_phy_proc_rx = sqrt((double)UE->phy_proc_rx[UE->current_thread_id[subframe]].diff_square/pow(cpu_freq_GHz,2)/pow(1000,
2)/UE->phy_proc_rx[UE->current_thread_id[subframe]].trials - pow((double)UE->phy_proc_rx[UE->current_thread_id[subframe]].diff/UE->phy_proc_rx[UE->current_thread_id[subframe]].trials/cpu_freq_GHz/1000,2));
printf("Total PHY proc rx :%f us (%d trials)\n",(double)UE->phy_proc_rx[UE->current_thread_id[subframe]].diff/UE->phy_proc_rx[UE->current_thread_id[subframe]].trials/cpu_freq_GHz/1000.0,
UE->phy_proc_rx[UE->current_thread_id[subframe]].trials*2/3);
printf("|__Statistcs std: %fus max: %fus min: %fus median %fus q1 %fus q3 %fus n_dropped: %d packet \n", std_phy_proc_rx, t_rx_max, t_rx_min, rx_median,
rx_q1, rx_q3, n_rx_dropped);
std_phy_proc_rx_fft = sqrt((double)UE->ofdm_demod_stats.diff_square/pow(cpu_freq_GHz,2)/pow(1000,
2)/UE->ofdm_demod_stats.trials - pow((double)UE->ofdm_demod_stats.diff/UE->ofdm_demod_stats.trials/cpu_freq_GHz/1000,2));
printf("DLSCH OFDM demodulation and channel_estimation time :%f us (%d trials)\n",(nsymb)*(double)UE->ofdm_demod_stats.diff/UE->ofdm_demod_stats.trials/cpu_freq_GHz/1000.0,
UE->ofdm_demod_stats.trials*2/3);
printf("|__ Statistcs std: %fus median %fus q1 %fus q3 %fus \n",std_phy_proc_rx_fft, rx_fft_median, rx_fft_q1, rx_fft_q3);
printf("|__ DLSCH rx dft :%f us (%d trials)\n",
(nsymb*UE->frame_parms.nb_antennas_rx)*(double)UE->rx_dft_stats.diff/UE->rx_dft_stats.trials/cpu_freq_GHz/1000.0,UE->rx_dft_stats.trials*2/3);
printf("|__ DLSCH channel estimation time :%f us (%d trials)\n",
(4.0)*(double)UE->dlsch_channel_estimation_stats.diff/UE->dlsch_channel_estimation_stats.trials/cpu_freq_GHz/1000.0,UE->dlsch_channel_estimation_stats.trials*2/3);
printf("|__ DLSCH frequency offset estimation time :%f us (%d trials)\n",
(4.0)*(double)UE->dlsch_freq_offset_estimation_stats.diff/UE->dlsch_freq_offset_estimation_stats.trials/cpu_freq_GHz/1000.0,
UE->dlsch_freq_offset_estimation_stats.trials*2/3);
printf("DLSCH rx pdcch :%f us (%d trials)\n",(double)UE->dlsch_rx_pdcch_stats.diff/UE->dlsch_rx_pdcch_stats.trials/cpu_freq_GHz/1000.0,
UE->dlsch_rx_pdcch_stats.trials);
std_phy_proc_rx_demod = sqrt((double)UE->dlsch_llr_stats.diff_square/pow(cpu_freq_GHz,2)/pow(1000,
2)/UE->dlsch_llr_stats.trials - pow((double)UE->dlsch_llr_stats.diff/UE->dlsch_llr_stats.trials/cpu_freq_GHz/1000,2));
printf("DLSCH Channel Compensation and LLR generation time :%f us (%d trials)\n",(14-num_pdcch_symbols)*(double)UE->dlsch_llr_stats.diff/UE->dlsch_llr_stats.trials/cpu_freq_GHz/1000.0,
UE->dlsch_llr_stats.trials/3);
printf("|__ Statistcs std: %fus median %fus q1 %fus q3 %fus \n",std_phy_proc_rx_demod, rx_demod_median, rx_demod_q1, rx_demod_q3);
printf("DLSCH unscrambling time :%f us (%d trials)\n",(double)UE->dlsch_unscrambling_stats.diff/UE->dlsch_unscrambling_stats.trials/cpu_freq_GHz/1000.0,
UE->dlsch_unscrambling_stats.trials);
std_phy_proc_rx_dec = sqrt((double)UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].diff_square/pow(cpu_freq_GHz,2)/pow(1000,
2)/UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].trials - pow((double)UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].diff/UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].trials/cpu_freq_GHz/1000,2));
printf("DLSCH Decoding time (%02.2f Mbit/s, avg iter %1.2f) :%f us (%d trials, max %f)\n",
eNB->dlsch[0][0]->harq_processes[0]->TBS/1000.0,(double)avg_iter/iter_trials,
(double)UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].diff/UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].trials/cpu_freq_GHz/1000.0,UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].trials,
(double)UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].max/cpu_freq_GHz/1000.0);
printf("|__ Statistcs std: %fus median %fus q1 %fus q3 %fus \n",std_phy_proc_rx_dec, rx_dec_median, rx_dec_q1, rx_dec_q3);
printf("|__ DLSCH Rate Unmatching :%f us (%d trials)\n",
(double)UE->dlsch_rate_unmatching_stats.diff/UE->dlsch_rate_unmatching_stats.trials/cpu_freq_GHz/1000.0,UE->dlsch_rate_unmatching_stats.trials);
printf("|__ DLSCH Turbo Decoding(%d bits) :%f us (%d trials)\n",
UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->Cminus ? UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->Kminus : UE->dlsch[UE->current_thread_id[subframe]][0][0]->harq_processes[0]->Kplus,
(double)UE->dlsch_turbo_decoding_stats.diff/UE->dlsch_turbo_decoding_stats.trials/cpu_freq_GHz/1000.0,UE->dlsch_turbo_decoding_stats.trials);
printf(" |__ init %f us (cycles/iter %f, %d trials)\n",
(double)UE->dlsch_tc_init_stats.diff/UE->dlsch_tc_init_stats.trials/cpu_freq_GHz/1000.0,
(double)UE->dlsch_tc_init_stats.diff/UE->dlsch_tc_init_stats.trials/((double)avg_iter/iter_trials),
UE->dlsch_tc_init_stats.trials);
printf(" |__ alpha %f us (cycles/iter %f, %d trials)\n",
(double)UE->dlsch_tc_alpha_stats.diff/UE->dlsch_tc_alpha_stats.trials/cpu_freq_GHz/1000.0,
(double)UE->dlsch_tc_alpha_stats.diff/UE->dlsch_tc_alpha_stats.trials*2,
UE->dlsch_tc_alpha_stats.trials);
printf(" |__ beta %f us (cycles/iter %f,%d trials)\n",
(double)UE->dlsch_tc_beta_stats.diff/UE->dlsch_tc_beta_stats.trials/cpu_freq_GHz/1000.0,
(double)UE->dlsch_tc_beta_stats.diff/UE->dlsch_tc_beta_stats.trials*2,
UE->dlsch_tc_beta_stats.trials);
printf(" |__ gamma %f us (cycles/iter %f,%d trials)\n",
(double)UE->dlsch_tc_gamma_stats.diff/UE->dlsch_tc_gamma_stats.trials/cpu_freq_GHz/1000.0,
(double)UE->dlsch_tc_gamma_stats.diff/UE->dlsch_tc_gamma_stats.trials*2,
UE->dlsch_tc_gamma_stats.trials);
printf(" |__ ext %f us (cycles/iter %f,%d trials)\n",
(double)UE->dlsch_tc_ext_stats.diff/UE->dlsch_tc_ext_stats.trials/cpu_freq_GHz/1000.0,
(double)UE->dlsch_tc_ext_stats.diff/UE->dlsch_tc_ext_stats.trials*2,
UE->dlsch_tc_ext_stats.trials);
printf(" |__ intl1 %f us (cycles/iter %f,%d trials)\n",
(double)UE->dlsch_tc_intl1_stats.diff/UE->dlsch_tc_intl1_stats.trials/cpu_freq_GHz/1000.0,
(double)UE->dlsch_tc_intl1_stats.diff/UE->dlsch_tc_intl1_stats.trials,
UE->dlsch_tc_intl1_stats.trials);
printf(" |__ intl2+HD+CRC %f us (cycles/iter %f,%d trials)\n",
(double)UE->dlsch_tc_intl2_stats.diff/UE->dlsch_tc_intl2_stats.trials/cpu_freq_GHz/1000.0,
(double)UE->dlsch_tc_intl2_stats.diff/UE->dlsch_tc_intl2_stats.trials,
UE->dlsch_tc_intl2_stats.trials);
}
if ((transmission_mode != 3) && (transmission_mode != 4)) {
fprintf(bler_fd,"%f;%d;%d;%f;%d;%d;%d;%d;%d;%d;%d;%d;%d\n",
SNR,
mcs1,
eNB->dlsch[0][0]->harq_processes[0]->TBS,
rate,
errs[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
dci_errors[0]);
} else {
fprintf(bler_fd,"%f;%d;%d;%d;%d;%f;%d;%d;%d;%d;%d;%d;%d;%d;%d\n",
SNR,
mcs1,mcs2,
eNB->dlsch[0][0]->harq_processes[0]->TBS,
eNB->dlsch[0][1]->harq_processes[0]->TBS,
rate,
errs[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
dci_errors[0]);
}
if(abstx) { //ABSTRACTION
blerr[0] = (double)errs[0]/(round_trials[0]);
if(num_rounds>1) {
blerr[1] = (double)errs[1]/(round_trials[1]);
blerr[2] = (double)errs[2]/(round_trials[2]);
blerr[3] = (double)errs[3]/(round_trials[3]);
fprintf(csv_fd,"%e,%e,%e,%e;\n",blerr[0],blerr[1],blerr[2],blerr[3]);
} else {
fprintf(csv_fd,"%e;\n",blerr[0]);
}
} //ABStraction
if ( (test_perf != 0) && (100 * effective_rate > test_perf )) {
//fprintf(time_meas_fd,"SNR; MCS; TBS; rate; err0; trials0; err1; trials1; err2; trials2; err3; trials3; dci_err\n");
if ((transmission_mode != 3) && (transmission_mode != 4)) {
fprintf(time_meas_fd,"%f;%d;%d;%f;%d;%d;%d;%d;%d;%d;%d;%d;%d;",
SNR,
mcs1,
eNB->dlsch[0][0]->harq_processes[0]->TBS,
rate,
errs[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
dci_errors[0]);
//fprintf(time_meas_fd,"SNR; MCS; TBS; rate; DL_DECOD_ITER; err0; trials0; err1; trials1; err2; trials2; err3; trials3; PE; dci_err;PE;ND;\n");
fprintf(time_meas_fd,"%f;%d;%d;%f; %2.1f%%;%f;%f;%d;%d;%d;%d;%d;%d;%d;%d;%e;%e;%e;%e;%d;%d;%e;%f;%f;",
SNR,
mcs1,
eNB->dlsch[0][0]->harq_processes[0]->TBS,
rate*effective_rate,
100*effective_rate,
rate,
(double)avg_iter/iter_trials,
errs[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
(double)errs[0]/(round_trials[0]),
(double)errs[1]/(round_trials[0]),
(double)errs[2]/(round_trials[0]),
(double)errs[3]/(round_trials[0]),
dci_errors[0],
round_trials[0],
(double)dci_errors[0]/(round_trials[0]),
(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0])/
(double)eNB->dlsch[0][0]->harq_processes[0]->TBS,
(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0]));
} else {
fprintf(time_meas_fd,"%f;%d;%d;%d;%d;%f;%d;%d;%d;%d;%d;%d;%d;%d;%d;",
SNR,
mcs1,mcs2,
eNB->dlsch[0][0]->harq_processes[0]->TBS,
eNB->dlsch[0][1]->harq_processes[0]->TBS,
rate,
errs[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
dci_errors[0]);
//fprintf(time_meas_fd,"SNR; MCS; TBS; rate; DL_DECOD_ITER; err0; trials0; err1; trials1; err2; trials2; err3; trials3; PE; dci_err;PE;ND;\n");
fprintf(time_meas_fd,"%f;%d;%d;%d;%d;%f;%2.1f;%f;%f;%d;%d;%d;%d;%d;%d;%d;%d;%e;%e;%e;%e;%d;%d;%e;%f;%f;",
SNR,
mcs1,mcs2,
eNB->dlsch[0][0]->harq_processes[0]->TBS,
eNB->dlsch[0][1]->harq_processes[0]->TBS,
rate*effective_rate,
100*effective_rate,
rate,
(double)avg_iter/iter_trials,
errs[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
(double)errs[0]/(round_trials[0]),
(double)errs[1]/(round_trials[0]),
(double)errs[2]/(round_trials[0]),
(double)errs[3]/(round_trials[0]),
dci_errors[0],
round_trials[0],
(double)dci_errors[0]/(round_trials[0]),
(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0])/
(double)eNB->dlsch[0][0]->harq_processes[0]->TBS,
(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0]));
}
//fprintf(time_meas_fd,"eNB_PROC_TX(%d); OFDM_MOD(%d); DL_MOD(%d); DL_SCR(%d); DL_ENC(%d); UE_PROC_RX(%d); OFDM_DEMOD_CH_EST(%d); RX_PDCCH(%d); CH_COMP_LLR(%d); DL_USCR(%d); DL_DECOD(%d);\n",
fprintf(time_meas_fd,"%d; %d; %d; %d; %d; %d; %d; %d; %d; %d; %d;",
eNB->phy_proc_tx.trials,
eNB->ofdm_mod_stats.trials,
eNB->dlsch_modulation_stats.trials,
eNB->dlsch_scrambling_stats.trials,
eNB->dlsch_encoding_stats.trials,
UE->phy_proc_rx[UE->current_thread_id[subframe]].trials,
UE->ofdm_demod_stats.trials,
UE->dlsch_rx_pdcch_stats.trials,
UE->dlsch_llr_stats.trials,
UE->dlsch_unscrambling_stats.trials,
UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].trials
);
fprintf(time_meas_fd,"%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;",
get_time_meas_us(&eNB->phy_proc_tx),
get_time_meas_us(&eNB->ofdm_mod_stats),
get_time_meas_us(&eNB->dlsch_modulation_stats),
get_time_meas_us(&eNB->dlsch_scrambling_stats),
get_time_meas_us(&eNB->dlsch_encoding_stats),
get_time_meas_us(&UE->phy_proc_rx[UE->current_thread_id[subframe]]),
nsymb*get_time_meas_us(&UE->ofdm_demod_stats),
get_time_meas_us(&UE->dlsch_rx_pdcch_stats),
3*get_time_meas_us(&UE->dlsch_llr_stats),
get_time_meas_us(&UE->dlsch_unscrambling_stats),
get_time_meas_us(&UE->dlsch_decoding_stats[UE->current_thread_id[subframe]])
);
//fprintf(time_meas_fd,"eNB_PROC_TX_STD;eNB_PROC_TX_MAX;eNB_PROC_TX_MIN;eNB_PROC_TX_MED;eNB_PROC_TX_Q1;eNB_PROC_TX_Q3;eNB_PROC_TX_DROPPED;\n");
fprintf(time_meas_fd,"%f;%f;%f;%f;%f;%f;%d;", std_phy_proc_tx, t_tx_max, t_tx_min, tx_median, tx_q1, tx_q3, n_tx_dropped);
//fprintf(time_meas_fd,"IFFT;\n");
fprintf(time_meas_fd,"%f;%f;%f;%f;", std_phy_proc_tx_ifft, tx_ifft_median, tx_ifft_q1, tx_ifft_q3);
//fprintf(time_meas_fd,"MOD;\n");
fprintf(time_meas_fd,"%f;%f;%f;%f;", std_phy_proc_tx_mod, tx_mod_median, tx_mod_q1, tx_mod_q3);
//fprintf(time_meas_fd,"ENC;\n");
fprintf(time_meas_fd,"%f;%f;%f;%f;", std_phy_proc_tx_enc, tx_enc_median, tx_enc_q1, tx_enc_q3);
//fprintf(time_meas_fd,"UE_PROC_RX_STD;UE_PROC_RX_MAX;UE_PROC_RX_MIN;UE_PROC_RX_MED;UE_PROC_RX_Q1;UE_PROC_RX_Q3;UE_PROC_RX_DROPPED;\n");
fprintf(time_meas_fd,"%f;%f;%f;%f;%f;%f;%d;", std_phy_proc_rx, t_rx_max, t_rx_min, rx_median, rx_q1, rx_q3, n_rx_dropped);
//fprintf(time_meas_fd,"FFT;\n");
fprintf(time_meas_fd,"%f;%f;%f;%f;", std_phy_proc_rx_fft, rx_fft_median, rx_fft_q1, rx_fft_q3);
//fprintf(time_meas_fd,"DEMOD;\n");
fprintf(time_meas_fd,"%f;%f;%f;%f;", std_phy_proc_rx_demod,rx_demod_median, rx_demod_q1, rx_demod_q3);
//fprintf(time_meas_fd,"DEC;\n");
fprintf(time_meas_fd,"%f;%f;%f;%f\n", std_phy_proc_rx_dec, rx_dec_median, rx_dec_q1, rx_dec_q3);
/*
fprintf(time_meas_fd,"%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;",
eNB->phy_proc_tx.trials,
eNB->ofdm_mod_stats.trials,
eNB->dlsch_modulation_stats.trials,
eNB->dlsch_scrambling_stats.trials,
eNB->dlsch_encoding_stats.trials,
UE->phy_proc_rx[UE->current_thread_id[subframe]].trials,
UE->ofdm_demod_stats.trials,
UE->dlsch_rx_pdcch_stats.trials,
UE->dlsch_llr_stats.trials,
UE->dlsch_unscrambling_stats.trials,
UE->dlsch_decoding_stats[UE->current_thread_id[subframe]].trials);
*/
printf("[passed] effective rate : %f (%2.1f%%,%f)): log and break \n",rate*effective_rate, 100*effective_rate, rate );
test_passed = 1;
break;
} else if (test_perf !=0 ) {
printf("[continue] effective rate : %f (%2.1f%%,%f)): increase snr \n",rate*effective_rate, 100*effective_rate, rate);
test_passed = 0;
}
if (((double)errs[0]/(round_trials[0]))<(10.0/n_frames))
break;
}// SNR
} //ch_realization
fclose(bler_fd);
if (test_perf !=0)
fclose (time_meas_fd);
//fprintf(tikz_fd,"};\n");
//fclose(tikz_fd);
if (input_trch_file==1)
fclose(input_trch_fd);
if (input_file==1)
fclose(input_fd);
if(abstx) { // ABSTRACTION
fprintf(csv_fd,"];");
fclose(csv_fd);
}
if (uncoded_ber_bit)
free(uncoded_ber_bit);
uncoded_ber_bit = NULL;
printf("Freeing dlsch structures\n");
for (i=0; i<2; i++) {
printf("eNB %d\n",i);
free_eNB_dlsch(eNB->dlsch[0][i]);
printf("UE %d\n",i);
free_ue_dlsch(UE->dlsch[UE->current_thread_id[subframe]][0][i]);
}
if (test_perf && !test_passed)
return(-1);
else
return(0);
}
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