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Commit 771bab79 authored by Rohit Gupta's avatar Rohit Gupta
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Merge branch 'enhancement-57-UHD-interfacing' into develop

parents f9d1f855 9f032724
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cmake_targets/CMakeLists.txt
View file @ 771bab79
......@@ -844,6 +844,7 @@ set(PHY_SRC
${OPENAIR1_DIR}/PHY/CODING/viterbi_lte.c
${OPENAIR1_DIR}/PHY/INIT/lte_init.c
${OPENAIR1_DIR}/PHY/INIT/lte_parms.c
${OPENAIR1_DIR}/PHY/INIT/lte_param_init.c
${OPENAIR1_DIR}/PHY/TOOLS/file_output.c
${OPENAIR1_DIR}/PHY/TOOLS/lte_dfts.c
${OPENAIR1_DIR}/PHY/TOOLS/log2_approx.c
......
openair1/PHY/INIT/lte_param_init.c 0 → 100644
View file @ 771bab79
#include <string.h>
#include <math.h>
#include <unistd.h>
#include <execinfo.h>
#include <signal.h>
#include "SIMULATION/TOOLS/defs.h"
#include "PHY/types.h"
#include "PHY/defs.h"
#include "PHY/extern.h"
extern PHY_VARS_eNB *PHY_vars_eNB;
extern PHY_VARS_UE *PHY_vars_UE;
void lte_param_init(unsigned char N_tx,
unsigned char N_rx,
unsigned char transmission_mode,
uint8_t extended_prefix_flag,
frame_t frame_type,
uint16_t Nid_cell,
uint8_t tdd_config,
uint8_t N_RB_DL,
uint8_t threequarter_fs,
uint8_t osf,
uint32_t perfect_ce)
{
LTE_DL_FRAME_PARMS *lte_frame_parms;
int i;
printf("Start lte_param_init\n");
PHY_vars_eNB = malloc(sizeof(PHY_VARS_eNB));
PHY_vars_UE = malloc(sizeof(PHY_VARS_UE));
//PHY_config = malloc(sizeof(PHY_CONFIG));
mac_xface = malloc(sizeof(MAC_xface));
srand(0);
randominit(0);
set_taus_seed(0);
lte_frame_parms = &(PHY_vars_eNB->lte_frame_parms);
lte_frame_parms->N_RB_DL = N_RB_DL; //50 for 10MHz and 25 for 5 MHz
lte_frame_parms->N_RB_UL = N_RB_DL;
lte_frame_parms->threequarter_fs = threequarter_fs;
lte_frame_parms->Ncp = extended_prefix_flag;
lte_frame_parms->Nid_cell = Nid_cell;
lte_frame_parms->nushift = Nid_cell%6;
lte_frame_parms->nb_antennas_tx = N_tx;
lte_frame_parms->nb_antennas_rx = N_rx;
lte_frame_parms->nb_antennas_tx_eNB = N_tx;
lte_frame_parms->phich_config_common.phich_resource = one;
lte_frame_parms->tdd_config = tdd_config;
lte_frame_parms->frame_type = frame_type;
// lte_frame_parms->Csrs = 2;
// lte_frame_parms->Bsrs = 0;
// lte_frame_parms->kTC = 0;44
// lte_frame_parms->n_RRC = 0;
lte_frame_parms->mode1_flag = (transmission_mode == 1)? 1 : 0;
init_frame_parms(lte_frame_parms,osf);
//copy_lte_parms_to_phy_framing(lte_frame_parms, &(PHY_config->PHY_framing));
// phy_init_top(lte_frame_parms); //allocation
PHY_vars_UE->is_secondary_ue = 0;
PHY_vars_UE->lte_frame_parms = *lte_frame_parms;
PHY_vars_eNB->lte_frame_parms = *lte_frame_parms;
phy_init_lte_top(lte_frame_parms);
dump_frame_parms(lte_frame_parms);
PHY_vars_UE->PHY_measurements.n_adj_cells=0;
PHY_vars_UE->PHY_measurements.adj_cell_id[0] = Nid_cell+1;
PHY_vars_UE->PHY_measurements.adj_cell_id[1] = Nid_cell+2;
for (i=0; i<3; i++)
lte_gold(lte_frame_parms,PHY_vars_UE->lte_gold_table[i],Nid_cell+i);
phy_init_lte_ue(PHY_vars_UE,1,0);
phy_init_lte_eNB(PHY_vars_eNB,0,0,0);
generate_pcfich_reg_mapping(&PHY_vars_UE->lte_frame_parms);
generate_phich_reg_mapping(&PHY_vars_UE->lte_frame_parms);
// DL power control init
if (transmission_mode == 1) {
PHY_vars_eNB->pdsch_config_dedicated->p_a = dB0; // 4 = 0dB
((PHY_vars_eNB->lte_frame_parms).pdsch_config_common).p_b = 0;
PHY_vars_UE->pdsch_config_dedicated->p_a = dB0; // 4 = 0dB
((PHY_vars_UE->lte_frame_parms).pdsch_config_common).p_b = 0;
} else { // rho_a = rhob
PHY_vars_eNB->pdsch_config_dedicated->p_a = dB0; // 4 = 0dB
((PHY_vars_eNB->lte_frame_parms).pdsch_config_common).p_b = 1;
PHY_vars_UE->pdsch_config_dedicated->p_a = dB0; // 4 = 0dB
((PHY_vars_UE->lte_frame_parms).pdsch_config_common).p_b = 1;
}
PHY_vars_UE->perfect_ce = perfect_ce;
printf("Done lte_param_init\n");
}
openair1/PHY/INIT/lte_parms.c
View file @ 771bab79
......@@ -68,33 +68,57 @@ int init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms,uint8_t osf)
break;
default:
msg("Illegal oversampling %d\n",osf);
printf("Illegal oversampling %d\n",osf);
return(-1);
}
switch (frame_parms->N_RB_DL) {
case 100:
if (osf>1) {
msg("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
printf("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
return(-1);
}
frame_parms->ofdm_symbol_size = 2048;
frame_parms->log2_symbol_size = 11;
frame_parms->samples_per_tti = 30720;
frame_parms->first_carrier_offset = 2048-600;
if (frame_parms->threequarter_fs) {
frame_parms->ofdm_symbol_size = 1536;
frame_parms->samples_per_tti = 23040;
frame_parms->first_carrier_offset = 1536-600;
frame_parms->nb_prefix_samples=(frame_parms->nb_prefix_samples*3)>>2;
frame_parms->nb_prefix_samples0=(frame_parms->nb_prefix_samples0*3)>>2;
}
else {
frame_parms->ofdm_symbol_size = 2048;
frame_parms->samples_per_tti = 30720;
frame_parms->first_carrier_offset = 2048-600;
}
frame_parms->N_RBGS = 4;
frame_parms->N_RBG = 25;
break;
case 75:
if (osf>1) {
printf("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
return(-1);
}
frame_parms->ofdm_symbol_size = 1536;
frame_parms->samples_per_tti = 23040;
frame_parms->first_carrier_offset = 1536-450;
frame_parms->nb_prefix_samples=(frame_parms->nb_prefix_samples*3)>>2;
frame_parms->nb_prefix_samples0=(frame_parms->nb_prefix_samples0*3)>>2;
frame_parms->N_RBGS = 4;
frame_parms->N_RBG = 25;
break;
case 50:
if (osf>1) {
msg("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
printf("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
return(-1);
}
frame_parms->ofdm_symbol_size = 1024*osf;
frame_parms->log2_symbol_size = 10+log2_osf;
frame_parms->samples_per_tti = 15360*osf;
frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 300;
frame_parms->nb_prefix_samples>>=(1-log2_osf);
......@@ -105,13 +129,13 @@ int init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms,uint8_t osf)
case 25:
if (osf>2) {
msg("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
printf("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
return(-1);
}
frame_parms->ofdm_symbol_size = 512*osf;
frame_parms->log2_symbol_size = 9+log2_osf;
frame_parms->samples_per_tti = 7680*osf;
frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 150;
frame_parms->nb_prefix_samples>>=(2-log2_osf);
......@@ -124,7 +148,6 @@ int init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms,uint8_t osf)
case 15:
frame_parms->ofdm_symbol_size = 256*osf;
frame_parms->log2_symbol_size = 8+log2_osf;
frame_parms->samples_per_tti = 3840*osf;
frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 90;
frame_parms->nb_prefix_samples>>=(3-log2_osf);
......@@ -135,7 +158,6 @@ int init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms,uint8_t osf)
case 6:
frame_parms->ofdm_symbol_size = 128*osf;
frame_parms->log2_symbol_size = 7+log2_osf;
frame_parms->samples_per_tti = 1920*osf;
frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 36;
frame_parms->nb_prefix_samples>>=(4-log2_osf);
......@@ -145,7 +167,7 @@ int init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms,uint8_t osf)
break;
default:
msg("init_frame_parms: Error: Number of resource blocks (N_RB_DL %d) undefined, frame_parms = %p \n",frame_parms->N_RB_DL, frame_parms);
printf("init_frame_parms: Error: Number of resource blocks (N_RB_DL %d) undefined, frame_parms = %p \n",frame_parms->N_RB_DL, frame_parms);
return(-1);
break;
}
......@@ -159,23 +181,22 @@ int init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms,uint8_t osf)
void dump_frame_parms(LTE_DL_FRAME_PARMS *frame_parms)
{
msg("frame_parms->N_RB_DL=%d\n",frame_parms->N_RB_DL);
msg("frame_parms->N_RB_UL=%d\n",frame_parms->N_RB_UL);
msg("frame_parms->Nid_cell=%d\n",frame_parms->Nid_cell);
msg("frame_parms->Ncp=%d\n",frame_parms->Ncp);
msg("frame_parms->Ncp_UL=%d\n",frame_parms->Ncp_UL);
msg("frame_parms->nushift=%d\n",frame_parms->nushift);
msg("frame_parms->frame_type=%d\n",frame_parms->frame_type);
msg("frame_parms->tdd_config=%d\n",frame_parms->tdd_config);
msg("frame_parms->tdd_config_S=%d\n",frame_parms->tdd_config_S);
msg("frame_parms->mode1_flag=%d\n",frame_parms->mode1_flag);
msg("frame_parms->nb_antennas_tx=%d\n",frame_parms->nb_antennas_tx);
msg("frame_parms->nb_antennas_rx=%d\n",frame_parms->nb_antennas_rx);
msg("frame_parms->ofdm_symbol_size=%d\n",frame_parms->ofdm_symbol_size);
msg("frame_parms->log2_symbol_size=%d\n",frame_parms->log2_symbol_size);
msg("frame_parms->nb_prefix_samples=%d\n",frame_parms->nb_prefix_samples);
msg("frame_parms->nb_prefix_samples0=%d\n",frame_parms->nb_prefix_samples0);
msg("frame_parms->first_carrier_offset=%d\n",frame_parms->first_carrier_offset);
msg("frame_parms->samples_per_tti=%d\n",frame_parms->samples_per_tti);
msg("frame_parms->symbols_per_tti=%d\n",frame_parms->symbols_per_tti);
printf("frame_parms->N_RB_DL=%d\n",frame_parms->N_RB_DL);
printf("frame_parms->N_RB_UL=%d\n",frame_parms->N_RB_UL);
printf("frame_parms->Nid_cell=%d\n",frame_parms->Nid_cell);
printf("frame_parms->Ncp=%d\n",frame_parms->Ncp);
printf("frame_parms->Ncp_UL=%d\n",frame_parms->Ncp_UL);
printf("frame_parms->nushift=%d\n",frame_parms->nushift);
printf("frame_parms->frame_type=%d\n",frame_parms->frame_type);
printf("frame_parms->tdd_config=%d\n",frame_parms->tdd_config);
printf("frame_parms->tdd_config_S=%d\n",frame_parms->tdd_config_S);
printf("frame_parms->mode1_flag=%d\n",frame_parms->mode1_flag);
printf("frame_parms->nb_antennas_tx=%d\n",frame_parms->nb_antennas_tx);
printf("frame_parms->nb_antennas_rx=%d\n",frame_parms->nb_antennas_rx);
printf("frame_parms->ofdm_symbol_size=%d\n",frame_parms->ofdm_symbol_size);
printf("frame_parms->nb_prefix_samples=%d\n",frame_parms->nb_prefix_samples);
printf("frame_parms->nb_prefix_samples0=%d\n",frame_parms->nb_prefix_samples0);
printf("frame_parms->first_carrier_offset=%d\n",frame_parms->first_carrier_offset);
printf("frame_parms->samples_per_tti=%d\n",frame_parms->samples_per_tti);
printf("frame_parms->symbols_per_tti=%d\n",frame_parms->symbols_per_tti);
}
openair1/PHY/LTE_ESTIMATION/lte_dl_channel_estimation.c
View file @ 771bab79
......@@ -703,24 +703,28 @@ int lte_dl_channel_estimation(PHY_VARS_UE *phy_vars_ue,
void (*idft)(int16_t *,int16_t *, int);
switch (phy_vars_ue->lte_frame_parms.log2_symbol_size) {
case 7:
switch (phy_vars_ue->lte_frame_parms.ofdm_symbol_size) {
case 128:
idft = idft128;
break;
case 8:
case 256:
idft = idft256;
break;
case 9:
case 512:
idft = idft512;
break;
case 10:
case 1024:
idft = idft1024;
break;
case 11:
case 1536:
idft = idft1536;
break;
case 2048:
idft = idft2048;
break;
......
openair1/PHY/LTE_ESTIMATION/lte_sync_time.c
View file @ 771bab79
......@@ -61,7 +61,6 @@ int lte_sync_time_init(LTE_DL_FRAME_PARMS *frame_parms ) // LTE_UE_COMMON *com
{
int i,k;
//unsigned short ds = frame_parms->log2_symbol_size - 7;
sync_corr_ue0 = (int *)malloc16(LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*sizeof(int)*frame_parms->samples_per_tti);
sync_corr_ue1 = (int *)malloc16(LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*sizeof(int)*frame_parms->samples_per_tti);
......@@ -184,13 +183,6 @@ int lte_sync_time_init(LTE_DL_FRAME_PARMS *frame_parms ) // LTE_UE_COMMON *com
LOG_E(PHY,"Unsupported N_RB_DL %d\n",frame_parms->N_RB_DL);
break;
}
/*
frame_parms->twiddle_ifft, /// complex twiddle factors
frame_parms->rev, /// bit reversed permutation vector
frame_parms->log2_symbol_size,/// log2(FFT_SIZE)
(frame_parms->log2_symbol_size/2),
0); /// 0 - input is in complex Q1.15 format, 1 - input is in complex redundant Q1.15 format)
*/
for (i=0; i<frame_parms->ofdm_symbol_size; i++)
((int32_t*)primary_synch0_time)[i] = sync_tmp[i];
......
openair1/PHY/LTE_ESTIMATION/lte_ul_channel_estimation.c
View file @ 771bab79
......@@ -432,7 +432,7 @@ int32_t lte_ul_channel_estimation(PHY_VARS_eNB *phy_vars_eNB,
in_fft_ptr_0 = &temp_in_fft_0[0];
in_fft_ptr_1 = &temp_in_fft_1[0];
for(j=0; j<(1<<(frame_parms->log2_symbol_size))/12; j++) {
for(j=0; j<(frame_parms->ofdm_symbol_size)/12; j++) {
if (j>19) {
((int16_t*)in_fft_ptr_0)[-40+(2*j)] = ((int16_t*)temp_out_ifft_0)[-80+(2*j)]*rx_power_correction;
((int16_t*)in_fft_ptr_0)[-40+(2*j)+1] = ((int16_t*)temp_out_ifft_0)[-80+(2*j+1)]*rx_power_correction;
......
openair1/PHY/LTE_REFSIG/lte_dl_cell_spec.c
View file @ 771bab79
......@@ -72,7 +72,7 @@ int lte_dl_cell_spec_SS(PHY_VARS_eNB *phy_vars_eNB,
else if ((p==1) && (l>0))
nu = 0;
else {
msg("lte_dl_cell_spec: p %d, l %d -> ERROR\n",p,l);
printf("lte_dl_cell_spec: p %d, l %d -> ERROR\n",p,l);
return(-1);
}
......@@ -94,9 +94,9 @@ int lte_dl_cell_spec_SS(PHY_VARS_eNB *phy_vars_eNB,
output[k] = qpsk[(phy_vars_eNB->lte_gold_table[Ns][l][mprime_dword]>>(2*mprime_qpsk_symb))&3];
//output[k] = (lte_gold_table[eNB_offset][Ns][l][mprime_dword]>>(2*mprime_qpsk_symb))&3;
#ifdef DEBUG_DL_CELL_SPEC
msg("Ns %d, l %d, m %d,mprime_dword %d, mprime_qpsk_symbol %d\n",
printf("Ns %d, l %d, m %d,mprime_dword %d, mprime_qpsk_symbol %d\n",
Ns,l,m,mprime_dword,mprime_qpsk_symb);
msg("index = %d (k %d)\n",(phy_vars_eNB->lte_gold_table[Ns][l][mprime_dword]>>(2*mprime_qpsk_symb))&3,k);
printf("index = %d (k %d)\n",(phy_vars_eNB->lte_gold_table[Ns][l][mprime_dword]>>(2*mprime_qpsk_symb))&3,k);
#endif
mprime++;
......@@ -151,7 +151,7 @@ int lte_dl_cell_spec(PHY_VARS_eNB *phy_vars_eNB,
else if ((p==1) && (l>0))
nu = 0;
else {
msg("lte_dl_cell_spec: p %d, l %d -> ERROR\n",p,l);
printf("lte_dl_cell_spec: p %d, l %d -> ERROR\n",p,l);
return(-1);
}
......@@ -177,9 +177,9 @@ int lte_dl_cell_spec(PHY_VARS_eNB *phy_vars_eNB,
output[k] = qpsk[(phy_vars_eNB->lte_gold_table[Ns][l][mprime_dword]>>(2*mprime_qpsk_symb))&3];
//output[k] = (lte_gold_table[eNB_offset][Ns][l][mprime_dword]>>(2*mprime_qpsk_symb))&3;
#ifdef DEBUG_DL_CELL_SPEC
msg("Ns %d, l %d, m %d,mprime_dword %d, mprime_qpsk_symbol %d\n",
printf("Ns %d, l %d, m %d,mprime_dword %d, mprime_qpsk_symbol %d\n",
Ns,l,m,mprime_dword,mprime_qpsk_symb);
msg("index = %d (k %d)\n",(phy_vars_eNB->lte_gold_table[Ns][l][mprime_dword]>>(2*mprime_qpsk_symb))&3,k);
printf("index = %d (k %d)\n",(phy_vars_eNB->lte_gold_table[Ns][l][mprime_dword]>>(2*mprime_qpsk_symb))&3,k);
#endif
mprime++;
......
openair1/PHY/LTE_TRANSPORT/print_stats.c
View file @ 771bab79
......@@ -67,11 +67,12 @@ int dump_ue_stats(PHY_VARS_UE *phy_vars_ue, char* buffer, int length, runmode_t
if ((mode == normal_txrx) || (mode == no_L2_connect)) {
len += sprintf(&buffer[len], "[UE_PROC] UE %d, RNTI %x\n",phy_vars_ue->Mod_id, phy_vars_ue->lte_ue_pdcch_vars[0]->crnti);
len += sprintf(&buffer[len],"[UE PROC] RSRP[0] %.2f dBm/RE, RSSI %.2f dBm, RSRQ[0] %.2f dB, N0 %d dBm/RE\n",
len += sprintf(&buffer[len],"[UE PROC] RSRP[0] %.2f dBm/RE, RSSI %.2f dBm, RSRQ[0] %.2f dB, N0 %d dBm/RE (NF %.1f dB)\n",
10*log10(phy_vars_ue->PHY_measurements.rsrp[0])-phy_vars_ue->rx_total_gain_dB,
10*log10(phy_vars_ue->PHY_measurements.rssi)-phy_vars_ue->rx_total_gain_dB,
10*log10(phy_vars_ue->PHY_measurements.rsrq[0]),
phy_vars_ue->PHY_measurements.n0_power_tot_dBm);
phy_vars_ue->PHY_measurements.n0_power_tot_dBm,
(double)phy_vars_ue->PHY_measurements.n0_power_tot_dBm+132.24);
/*
len += sprintf(&buffer[len],
......
openair1/PHY/MODULATION/defs.h
View file @ 771bab79
......@@ -34,12 +34,12 @@
*/
/**
\fn void PHY_ofdm_mod(int *input,int *output,unsigned char log2fftsize,unsigned char nb_symbols,unsigned short nb_prefix_samples,Extension_t etype)
\fn void PHY_ofdm_mod(int *input,int *output,int fftsize,unsigned char nb_symbols,unsigned short nb_prefix_samples,Extension_t etype)
This function performs OFDM modulation with cyclic extension or zero-padding.
@param input The sequence input samples in the frequency-domain. This is a concatenation of the input symbols in SIMD redundant format
@param output The time-domain output signal
@param log2fftsize Base-2 logarithm of the OFDM symbol size (\f$N_d\f$)
@param fftsize size of OFDM symbol size (\f$N_d\f$)
@param nb_symbols The number of OFDM symbols in the block
@param nb_prefix_samples The number of prefix/suffix/zero samples
@param etype Type of extension (CYCLIC_PREFIX,CYCLIC_SUFFIX,ZEROS)
......@@ -47,7 +47,7 @@ This function performs OFDM modulation with cyclic extension or zero-padding.
*/
void PHY_ofdm_mod(int *input,
int *output,
unsigned char log2fftsize,
int fftsize,
unsigned char nb_symbols,
unsigned short nb_prefix_samples,
Extension_t etype
......
openair1/PHY/MODULATION/ofdm_mod.c
View file @ 771bab79
......@@ -61,9 +61,9 @@ void normal_prefix_mod(int32_t *txdataF,int32_t *txdata,uint8_t nsymb,LTE_DL_FRA
txdata+(i*(frame_parms->samples_per_tti>>1)));
#endif
PHY_ofdm_mod(txdataF+(i*NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti>>1), // input
PHY_ofdm_mod(txdataF+(i*frame_parms->ofdm_symbol_size*frame_parms->symbols_per_tti>>1), // input
txdata+(i*frame_parms->samples_per_tti>>1), // output
frame_parms->log2_symbol_size, // log2_fft_size
frame_parms->ofdm_symbol_size,
1, // number of symbols
frame_parms->nb_prefix_samples0, // number of prefix samples
CYCLIC_PREFIX);
......@@ -71,9 +71,9 @@ void normal_prefix_mod(int32_t *txdataF,int32_t *txdata,uint8_t nsymb,LTE_DL_FRA
printf("slot i %d (txdata offset %d)\n",i,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES0+(i*frame_parms->samples_per_tti>>1));
#endif
PHY_ofdm_mod(txdataF+NUMBER_OF_OFDM_CARRIERS+(i*NUMBER_OF_OFDM_CARRIERS*(frame_parms->symbols_per_tti>>1)), // input
PHY_ofdm_mod(txdataF+frame_parms->ofdm_symbol_size+(i*frame_parms->ofdm_symbol_size*(frame_parms->symbols_per_tti>>1)), // input
txdata+OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES0+(i*(frame_parms->samples_per_tti>>1)), // output
frame_parms->log2_symbol_size, // log2_fft_size
frame_parms->ofdm_symbol_size,
(short_offset==1) ? 1 :(frame_parms->symbols_per_tti>>1)-1,//6, // number of symbols
frame_parms->nb_prefix_samples, // number of prefix samples
CYCLIC_PREFIX);
......@@ -84,7 +84,7 @@ void normal_prefix_mod(int32_t *txdataF,int32_t *txdata,uint8_t nsymb,LTE_DL_FRA
void PHY_ofdm_mod(int *input, /// pointer to complex input
int *output, /// pointer to complex output
unsigned char log2fftsize, /// log2(FFT_SIZE)
int fftsize, /// FFT_SIZE
unsigned char nb_symbols, /// number of OFDM symbols
unsigned short nb_prefix_samples, /// cyclic prefix length
Extension_t etype /// type of extension
......@@ -100,24 +100,28 @@ void PHY_ofdm_mod(int *input, /// pointer to complex input
int *temp_ptr=(int*)0;
void (*idft)(int16_t *,int16_t *, int);
switch (log2fftsize) {
case 7:
switch (fftsize) {
case 128:
idft = idft128;
break;
case 8:
case 256:
idft = idft256;
break;
case 9:
case 512:
idft = idft512;
break;
case 10:
case 1024:
idft = idft1024;
break;
case 11:
case 1536:
idft = idft1536;
break;
case 2048:
idft = idft2048;
break;
......@@ -127,8 +131,8 @@ void PHY_ofdm_mod(int *input, /// pointer to complex input
}
#ifdef DEBUG_OFDM_MOD
msg("[PHY] OFDM mod (size %d,prefix %d) Symbols %d, input %p, output %p\n",
1<<log2fftsize,nb_prefix_samples,nb_symbols,input,output);
printf("[PHY] OFDM mod (size %d,prefix %d) Symbols %d, input %p, output %p\n",
fftsize,nb_prefix_samples,nb_symbols,input,output);
#endif
......@@ -136,35 +140,31 @@ void PHY_ofdm_mod(int *input, /// pointer to complex input
for (i=0; i<nb_symbols; i++) {
#ifdef DEBUG_OFDM_MOD
msg("[PHY] symbol %d/%d (%p,%p -> %p)\n",i,nb_symbols,input,&input[i<<log2fftsize],&output[(i<<log2fftsize) + ((i)*nb_prefix_samples)]);
printf("[PHY] symbol %d/%d offset %d (%p,%p -> %p)\n",i,nb_symbols,i*fftsize+(i*nb_prefix_samples),input,&input[i*fftsize],&output[(i*fftsize) + ((i)*nb_prefix_samples)]);
#endif
idft((int16_t *)&input[i<<log2fftsize],
(log2fftsize==7) ? (int16_t *)temp : (int16_t *)&output[(i<<log2fftsize) + ((1+i)*nb_prefix_samples)],
idft((int16_t *)&input[i*fftsize],
(fftsize==128) ? (int16_t *)temp : (int16_t *)&output[(i*fftsize) + ((1+i)*nb_prefix_samples)],
1);
// write_output("fft_out.m","fftout",temp,(1<<log2fftsize)*2,1,1);
//memset(temp,0,1<<log2fftsize);
// Copy to frame buffer with Cyclic Extension
// Note: will have to adjust for synchronization offset!
switch (etype) {
case CYCLIC_PREFIX:
output_ptr = &output[(i<<log2fftsize) + ((1+i)*nb_prefix_samples)];
output_ptr = &output[(i*fftsize) + ((1+i)*nb_prefix_samples)];
temp_ptr = (int *)temp;
// msg("Doing cyclic prefix method\n");
if (log2fftsize==7) {
for (j=0; j<((1<<log2fftsize)) ; j++) {
if (fftsize==128) {
for (j=0; j<fftsize ; j++) {
output_ptr[j] = temp_ptr[j];
}
}
j=(1<<log2fftsize);
j=fftsize;
for (k=-1; k>=-nb_prefix_samples; k--) {
output_ptr[k] = output_ptr[--j];
......@@ -175,19 +175,19 @@ void PHY_ofdm_mod(int *input, /// pointer to complex input
case CYCLIC_SUFFIX:
output_ptr = &output[(i<<log2fftsize)+ (i*nb_prefix_samples)];
output_ptr = &output[(i*fftsize)+ (i*nb_prefix_samples)];
temp_ptr = (int *)temp;
// msg("Doing cyclic suffix method\n");
for (j=0; j<(1<<log2fftsize) ; j++) {
for (j=0; j<fftsize ; j++) {
output_ptr[j] = temp_ptr[2*j];
}
for (j=0; j<nb_prefix_samples; j++)
output_ptr[(1<<log2fftsize)+j] = output_ptr[j];
output_ptr[fftsize+j] = output_ptr[j];
break;
......@@ -198,11 +198,11 @@ void PHY_ofdm_mod(int *input, /// pointer to complex input
case NONE:
// msg("NO EXTENSION!\n");
output_ptr = &output[(i<<log2fftsize)];
output_ptr = &output[fftsize];
temp_ptr = (int *)temp;
for (j=0; j<(1<<log2fftsize) ; j++) {
for (j=0; j<fftsize ; j++) {
output_ptr[j] = temp_ptr[2*j];
......@@ -219,14 +219,7 @@ void PHY_ofdm_mod(int *input, /// pointer to complex input
}
/*
printf("input %p, output %p, log2fftsize %d, nsymb %d\n",input,output,log2fftsize,nb_symbols);
for (i=0;i<16;i++)
printf("%d %d\n",((short *)input)[i<<1],((short *)input)[1+(i<<1)]);
printf("------\n");
for (i=0;i<16;i++)
printf("%d %d\n",((short *)output)[i<<1],((short *)output)[1+(i<<1)]);
*/
}
......@@ -244,7 +237,7 @@ void do_OFDM_mod(mod_sym_t **txdataF, int32_t **txdata, uint32_t frame,uint16_t
LOG_D(PHY,"Frame %d, subframe %d: Doing MBSFN modulation (slot_offset %d)\n",frame,next_slot>>1,slot_offset);
PHY_ofdm_mod(&txdataF[aa][slot_offset_F], // input
&txdata[aa][slot_offset], // output
frame_parms->log2_symbol_size, // log2_fft_size
frame_parms->ofdm_symbol_size,
12, // number of symbols
frame_parms->ofdm_symbol_size>>2, // number of prefix samples
CYCLIC_PREFIX);
......@@ -252,7 +245,7 @@ void do_OFDM_mod(mod_sym_t **txdataF, int32_t **txdata, uint32_t frame,uint16_t
if (frame_parms->Ncp == EXTENDED)
PHY_ofdm_mod(&txdataF[aa][slot_offset_F], // input
&txdata[aa