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Commit 70b6ca63 authored by Khalid Ahmed's avatar Khalid Ahmed Committed by Thomas Schlichter
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adding nr_layer_mapping to ulsim

parent ef3c6add
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Showing with 135 additions and 60 deletions
openair1/PHY/INIT/nr_init_ue.c
View file @ 70b6ca63
......@@ -644,6 +644,26 @@ void phy_init_nr_ue__PDSCH( NR_UE_PDSCH* const pdsch, const NR_DL_FRAME_PARMS* c
}
}
void phy_init_nr_ue_PUSCH( NR_UE_PUSCH* const pusch, const NR_DL_FRAME_PARMS* const fp )
{
int i;
AssertFatal( pusch, "pusch==0" );
pusch->txdata = (int32_t**)malloc16( fp->nb_antennas_tx*sizeof(int32_t*) );
pusch->txdataF = (int32_t **)malloc16( fp->nb_antennas_tx*sizeof(int32_t*) );
for (i=0; i<fp->nb_antennas_tx; i++) {
pusch->txdata[i] = (int32_t*)malloc16_clear( fp->samples_per_subframe*10*sizeof(int32_t) );
pusch->txdataF[i] = (int32_t *)malloc16_clear( fp->ofdm_symbol_size*fp->symbols_per_slot*10*sizeof(int32_t) );
}
for (i=0; i<NR_MAX_NB_LAYERS; i++)
pusch->txdataF_layers[i] = (int32_t *)malloc16((NR_MAX_PUSCH_ENCODED_LENGTH)*sizeof(int32_t*));
}
int init_nr_ue_signal(PHY_VARS_NR_UE *ue,
int nb_connected_eNB,
uint8_t abstraction_flag)
......@@ -655,14 +675,15 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue,
NR_UE_PDSCH** const pdsch_vars_ra = ue->pdsch_vars_ra;
NR_UE_PDSCH** const pdsch_vars_p = ue->pdsch_vars_p;
NR_UE_PDSCH** const pdsch_vars_mch = ue->pdsch_vars_MCH;
NR_UE_PDSCH* (*pdsch_vars_th)[][NUMBER_OF_CONNECTED_eNB_MAX+1] = &ue->pdsch_vars;
NR_UE_PDCCH* (*pdcch_vars_th)[][NUMBER_OF_CONNECTED_eNB_MAX] = &ue->pdcch_vars;
NR_UE_PDSCH* (*const pdsch_vars_th)[][NUMBER_OF_CONNECTED_eNB_MAX+1] = ue->pdsch_vars;
NR_UE_PDCCH* (*const pdcch_vars_th)[][NUMBER_OF_CONNECTED_eNB_MAX] = ue->pdcch_vars;
NR_UE_PBCH** const pbch_vars = ue->pbch_vars;
NR_UE_PRACH** const prach_vars = ue->prach_vars;
NR_UE_PUSCH* (*const pusch_vars)[RX_NB_TH_MAX][NUMBER_OF_CONNECTED_eNB_MAX] = ue->pusch_vars;
int i,j,k,l,slot,symb,q;
int i,j,k,l,slot,symb,q,layer;
int eNB_id;
int th_id;
int n_ssb_crb=(fp->N_RB_DL-20);
......@@ -701,6 +722,20 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue,
ue->total_received_bits[eNB_id] = 0;
}
/////////////////////////PUSCH init/////////////////////////
///////////
for (th_id = 0; th_id < RX_NB_TH_MAX; th_id++){
for (eNB_id = 0; eNB_id < ue->n_connected_eNB; eNB_id++){
(*pusch_vars)[th_id][eNB_id] = (NR_UE_PUSCH *)malloc16(sizeof(NR_UE_PUSCH));
phy_init_nr_ue_PUSCH( (*pusch_vars)[th_id][eNB_id], fp );
}
}
///////////
////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////PUSCH DMRS init/////////////////////////
///////////
......
openair1/PHY/NR_UE_TRANSPORT/nr_transport_ue.h
View file @ 70b6ca63
......@@ -204,7 +204,7 @@ typedef struct {
/// Scrambled "b"-sequences (for definition see 36-211 V8.6 2009-03, p.14)
uint8_t b_tilde[MAX_NUM_NR_CHANNEL_BITS];
/// Modulated "d"-sequences (for definition see 36-211 V8.6 2009-03, p.14)
int32_t d[MAX_NUM_NR_RE];
int32_t d_mod[MAX_NUM_NR_RE];
/// Transform-coded "z"-sequences (for definition see 36-211 V8.6 2009-03, p.14-15)
int32_t z[MAX_NUM_NR_RE];
/*
......
openair1/PHY/defs_nr_UE.h
View file @ 70b6ca63
......@@ -277,6 +277,21 @@ typedef struct {
} NR_UE_COMMON_PER_THREAD;
typedef struct {
/// \brief Holds the transmit data in time domain.
/// For IFFT_FPGA this points to the same memory as PHY_vars->tx_vars[a].TX_DMA_BUFFER.
/// - first index: tx antenna [0..nb_antennas_tx[
/// - second index: sample [0..FRAME_LENGTH_COMPLEX_SAMPLES[
int32_t **txdata;
/// \brief Holds the transmit data in the frequency domain.
/// For IFFT_FPGA this points to the same memory as PHY_vars->rx_vars[a].RX_DMA_BUFFER.
/// - first index: tx antenna [0..nb_antennas_tx[
/// - second index: sample [0..FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX[
int32_t **txdataF;
/// TX buffers for multiple layers
int32_t *txdataF_layers[NR_MAX_NB_LAYERS];
} NR_UE_PUSCH;
typedef struct {
/// \brief Holds the transmit data in time domain.
/// For IFFT_FPGA this points to the same memory as PHY_vars->tx_vars[a].TX_DMA_BUFFER.
......@@ -943,6 +958,7 @@ typedef struct {
NR_UE_PBCH *pbch_vars[NUMBER_OF_CONNECTED_eNB_MAX];
NR_UE_PDCCH *pdcch_vars[RX_NB_TH_MAX][NUMBER_OF_CONNECTED_eNB_MAX];
NR_UE_PRACH *prach_vars[NUMBER_OF_CONNECTED_eNB_MAX];
NR_UE_PUSCH *pusch_vars[RX_NB_TH_MAX][NUMBER_OF_CONNECTED_eNB_MAX];
NR_UE_DLSCH_t *dlsch[RX_NB_TH_MAX][NUMBER_OF_CONNECTED_eNB_MAX][NR_MAX_NB_CODEWORDS]; // two RxTx Threads
NR_UE_ULSCH_t *ulsch[RX_NB_TH_MAX][NUMBER_OF_CONNECTED_eNB_MAX][NR_MAX_NB_CODEWORDS]; // two code words
NR_UE_DLSCH_t *dlsch_SI[NUMBER_OF_CONNECTED_eNB_MAX];
......
openair1/PHY/defs_nr_common.h
View file @ 70b6ca63
......@@ -94,6 +94,7 @@
#define NR_MAX_NB_CODEWORDS 2
#define NR_MAX_NB_HARQ_PROCESSES 16
#define NR_MAX_PDSCH_ENCODED_LENGTH NR_MAX_NB_RB*NR_SYMBOLS_PER_SLOT*NR_NB_SC_PER_RB*8*NR_MAX_NB_LAYERS // 8 is the maximum modulation order (it was 950984 before !!)
#define NR_MAX_PUSCH_ENCODED_LENGTH NR_MAX_PDSCH_ENCODED_LENGTH
#define NR_MAX_PDSCH_TBS 3824
typedef enum {
......
openair1/SIMULATION/NR_PHY/ulsim.c
View file @ 70b6ca63
......@@ -157,6 +157,7 @@ int main(int argc, char **argv) {
uint16_t nb_symb_sch = 12;
uint16_t nb_rb = 50;
uint8_t Imcs = 9;
int eNB_id = 0;
cpuf = get_cpu_freq_GHz();
......@@ -441,11 +442,14 @@ int main(int argc, char **argv) {
uint8_t Nl = 1;
uint8_t rvidx = 0;
uint8_t UE_id = 1;
uint8_t cwd;
NR_gNB_ULSCH_t *ulsch_gNB = gNB->ulsch[UE_id][0];
nfapi_nr_ul_config_ulsch_pdu_rel15_t *rel15_ul = &ulsch_gNB->harq_processes[harq_pid]->ulsch_pdu.ulsch_pdu_rel15;
NR_UE_ULSCH_t *ulsch_ue = UE->ulsch[0][0][0];
NR_UE_PUSCH *pusch_ue = UE->pusch_vars[0][eNB_id];
NR_UE_ULSCH_t **ulsch_ue = UE->ulsch[0][0];
NR_UL_UE_HARQ_t *harq_process_ul_ue;
mod_order = nr_get_Qm(Imcs, 1);
available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, mod_order, 1);
......@@ -476,6 +480,8 @@ int main(int argc, char **argv) {
uint8_t bit_index;
uint32_t errors_scrambling;
uint32_t scrambling_index;
int16_t **tx_layers;
int32_t *mod_symbols[MAX_NUM_NR_RE];
test_input = (unsigned char *) malloc16(sizeof(unsigned char) * TBS / 8);
......@@ -486,19 +492,20 @@ int main(int argc, char **argv) {
for (i = 0; i < TBS / 8; i++)
test_input[i] = 1;//(unsigned char) rand();
for (cwd=0; cwd<nb_codewords; cwd++) {
/////////////////////////[adk] preparing NR_UE_ULSCH_t parameters///////////////////////// A HOT FIX until creating nfapi_nr_ul_config_ulsch_pdu_rel15_t
///////////
ulsch_ue->nb_re_dmrs = nb_re_dmrs;
ulsch_ue->length_dmrs = length_dmrs;
ulsch_ue->rnti = n_rnti;
ulsch_ue[cwd]->nb_re_dmrs = nb_re_dmrs;
ulsch_ue[cwd]->length_dmrs = length_dmrs;
ulsch_ue[cwd]->rnti = n_rnti;
///////////
////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////[adk] preparing UL harq_process parameters/////////////////////////
///////////
NR_UL_UE_HARQ_t *harq_process_ul_ue = ulsch_ue->harq_processes[harq_pid];
harq_process_ul_ue = ulsch_ue[cwd]->harq_processes[harq_pid];
N_PRB_oh = 0; // higher layer (RRC) parameter xOverhead in PUSCH-ServingCellConfig
N_RE_prime = NR_NB_SC_PER_RB*nb_symb_sch - nb_re_dmrs - N_PRB_oh;
......@@ -518,16 +525,16 @@ int main(int argc, char **argv) {
///////////
////////////////////////////////////////////////////////////////////////////////////////////
#ifdef DEBUG_ULSCHSIM
#ifdef DEBUG_ULSCHSIM
for (i = 0; i < TBS / 8; i++) printf("test_input[i]=%d \n",test_input[i]);
#endif
#endif
/////////////////////////ULSCH coding/////////////////////////
///////////
if (input_fd == NULL) {
nr_ulsch_encoding(ulsch_ue, frame_parms, harq_pid);
nr_ulsch_encoding(ulsch_ue[cwd], frame_parms, harq_pid);
}
///////////
......@@ -537,15 +544,13 @@ int main(int argc, char **argv) {
/////////////////////////ULSCH scrambling/////////////////////////
///////////
for (int q=0; q<nb_codewords; q++){
memset(scrambled_output[q], 0, ((available_bits>>5)+1)*sizeof(uint32_t));
}
memset(scrambled_output[cwd], 0, ((available_bits>>5)+1)*sizeof(uint32_t));
nr_pusch_codeword_scrambling(ulsch_ue->g,
nr_pusch_codeword_scrambling(ulsch_ue[cwd]->g,
available_bits,
Nid_cell,
ulsch_ue->rnti,
scrambled_output[0]); // assume one codeword for the moment
ulsch_ue[cwd]->rnti,
scrambled_output[cwd]); // assume one codeword for the moment
/////////////
......@@ -554,14 +559,32 @@ int main(int argc, char **argv) {
/////////////////////////ULSCH modulation/////////////////////////
///////////
nr_modulation(scrambled_output[0], // assume one codeword for the moment
nr_modulation(scrambled_output[cwd], // assume one codeword for the moment
available_bits,
mod_order,
ulsch_ue->d);
ulsch_ue[cwd]->d_mod);
///////////
////////////////////////////////////////////////////////////////////////
mod_symbols[cwd] = (int32_t *)malloc16((NR_MAX_PUSCH_ENCODED_LENGTH)*sizeof(int32_t*));
memcpy(mod_symbols[cwd],ulsch_ue[cwd]->d_mod,(available_bits/mod_order)*sizeof(int32_t));
}
/////////////////////////ULSCH layer mapping/////////////////////////
///////////
tx_layers = (int16_t **)pusch_ue->txdataF_layers;
nr_layer_mapping((int16_t **)mod_symbols,
Nl,
available_bits/mod_order,
tx_layers);
///////////
////////////////////////////////////////////////////////////////////////
for (SNR = snr0; SNR < snr1; SNR += snr_step) {
......@@ -662,7 +685,7 @@ int main(int argc, char **argv) {
for (i = 0; i < TBS; i++) {
if(((ulsch_ue->g[i] == 0) && (channel_output_fixed[i] < 0)) || ((ulsch_ue->g[i] == 1) && (channel_output_fixed[i] >= 0))) {
if(((ulsch_ue[0]->g[i] == 0) && (channel_output_fixed[i] < 0)) || ((ulsch_ue[0]->g[i] == 1) && (channel_output_fixed[i] >= 0))) {
errors_scrambling++;
}
......
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