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Freq shift correction/Various cleanups

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This commit is contained in:
Guy De Souza
2018-11-09 18:56:19 +01:00
parent 0e9443880e
commit 9364125813
5 changed files with 39 additions and 48 deletions
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openair1/PHY/NR_TRANSPORT/nr_dci.c
-4
View File
@@ -331,9 +331,5 @@ printf("\n");
}
}
#ifdef DEBUG_DCI
write_output("txdataF_dci.m", "txdataF_dci", txdataF[0], frame_parms.samples_per_frame_wCP>>1, 1, 1);
#endif
return 0;
}
openair1/PHY/NR_TRANSPORT/nr_dlsch.c
+35 -30
View File
@@ -19,13 +19,13 @@
* contact@openairinterface.org
*/
/*! \file PHY/LTE_TRANSPORT/dlsch_decoding.c
* \brief Top-level routines for decoding Turbo-coded (DLSCH) transport channels from 36-212, V8.6 2009-03
* \author R. Knopp
* \date 2011
/*! \file PHY/NR_TRANSPORT/dlsch_decoding.c
* \brief Top-level routines for transmission of the PDSCH 38211 v 15.2.0
* \author Guy De Souza
* \date 2018
* \version 0.1
* \company Eurecom
* \email: knopp@eurecom.fr
* \email: desouza@eurecom.fr
* \note
* \warning
*/
@@ -36,7 +36,6 @@
//#define DEBUG_DLSCH
//#define DEBUG_DLSCH_MAPPING
//#define DEBUG_FILE_OUTPUT
uint8_t mod_order[5] = {1, 2, 4, 6, 8};
uint16_t mod_offset[5] = {1,3,7,23,87};
@@ -290,7 +289,7 @@ for (int l=0; l<rel15->nb_layers; l++)
uint8_t dmrs_type = config.pdsch_config.dmrs_type.value;
l0 = get_l0(dmrs_type, 2);//config.pdsch_config.dmrs_typeA_position.value);
nr_modulation(pdsch_dmrs[l0][0], n_dmrs, MOD_QPSK, mod_dmrs); // currently only codeword 0 is modulated
//#ifdef DEBUG_DLSCH
#ifdef DEBUG_DLSCH
printf("DMRS modulation (single symbol %d, %d symbols, type %d):\n", l0, n_dmrs, dmrs_type);
for (int i=0; i<n_dmrs>>3; i++) {
for (int j=0; j<8; j++) {
@@ -298,19 +297,23 @@ for (int i=0; i<n_dmrs>>3; i++) {
}
printf("\n");
}
//#endif
#endif
/// Resource mapping
AssertFatal(rel15->nb_layers<=config.rf_config.tx_antenna_ports.value, "Not enough Tx antennas (%d) for %d layers\n",\
config.rf_config.tx_antenna_ports.value, rel15->nb_layers);
// Non interleaved VRB to PRB mapping
uint8_t start_sc = frame_parms.first_carrier_offset + rel15->start_prb*NR_NB_SC_PER_RB +\
((pdcch_params.search_space_type == NFAPI_NR_SEARCH_SPACE_TYPE_COMMON) && (pdcch_params.dci_format == NFAPI_NR_DL_DCI_FORMAT_1_0))?\
((frame_parms.ssb_start_subcarrier/NR_NB_SC_PER_RB + pdcch_params.rb_offset)*NR_NB_SC_PER_RB) : 0;
uint16_t start_sc = frame_parms.first_carrier_offset + frame_parms.ssb_start_subcarrier;
if (start_sc >= frame_parms.ofdm_symbol_size)
start_sc -= frame_parms.ofdm_symbol_size;
/*rel15->start_prb*NR_NB_SC_PER_RB +*/
//((pdcch_params.search_space_type == NFAPI_NR_SEARCH_SPACE_TYPE_COMMON) && (pdcch_params.dci_format == NFAPI_NR_DL_DCI_FORMAT_1_0))?\
// ((frame_parms.ssb_start_subcarrier/NR_NB_SC_PER_RB + pdcch_params.rb_offset)*NR_NB_SC_PER_RB) : 0;
#ifdef DEBUG_DLSCH_MAPPING
printf("PDSCH resource mapping started (start SC %d\tstart symbol %d\tN_PRB %d\tnb_symbols %d)\n", start_sc, rel15->start_symbol, rel15->n_prb, rel15->nb_symbols);
printf("PDSCH resource mapping started (start SC %d\tstart symbol %d\tN_PRB %d\tnb_symbols %d)\n",
start_sc, rel15->start_symbol, rel15->n_prb, rel15->nb_symbols);
#endif
for (int ap=0; ap<rel15->nb_layers; ap++) {
@@ -322,22 +325,24 @@ printf("PDSCH resource mapping started (start SC %d\tstart symbol %d\tN_PRB %d\t
l_prime[0] = 0; // single symbol ap 0
uint8_t dmrs_symbol = l0+l_prime[0];
#ifdef DEBUG_DLSCH_MAPPING
printf("DMRS params for ap %d: Wt %d %d \t Wf %d %d \t delta %d \t l_prime %d \t l0 %d\tDMRS symbol %d\n", ap, Wt[0], Wt[1], Wf[0], Wf[1], delta, l_prime[0], l0, dmrs_symbol);
printf("DMRS params for ap %d: Wt %d %d \t Wf %d %d \t delta %d \t l_prime %d \t l0 %d\tDMRS symbol %d\n",
ap, Wt[0], Wt[1], Wf[0], Wf[1], delta, l_prime[0], l0, dmrs_symbol);
#endif
uint8_t k_prime=0;
uint16_t m=0, n=0, dmrs_idx=0;;
uint16_t m=0, n=0, dmrs_idx=0, k=0;
for (int l=rel15->start_symbol; l<rel15->start_symbol+rel15->nb_symbols; l++)
for (int k=start_sc; k<rel15->n_prb*NR_NB_SC_PER_RB; k++) {
if (k >= frame_parms.ofdm_symbol_size)
k -= frame_parms.ofdm_symbol_size;
if ((l == dmrs_symbol) && (k == (start_sc+get_pdsch_dmrs_idx(n, k_prime, delta, dmrs_type)))) {
((int16_t*)txdataF[ap])[(l*frame_parms.ofdm_symbol_size + k)<<1] = (Wt[l_prime[0]]*Wf[k_prime]*amp*mod_dmrs[dmrs_idx<<1]) >> 15;
((int16_t*)txdataF[ap])[((l*frame_parms.ofdm_symbol_size + k)<<1) + 1] = (Wt[l_prime[0]]*Wf[k_prime]*amp*mod_dmrs[(dmrs_idx<<1) + 1]) >> 15;
for (int l=rel15->start_symbol; l<rel15->start_symbol+rel15->nb_symbols; l++) {
k = start_sc;
for (int i=0; i<rel15->n_prb*NR_NB_SC_PER_RB; i++) {
// Note the dmrs index modulo 2048 only works for that symbol size -- to be fixed soon
// Also the different amplitudes are for debug purposes and temporary
if ((l == dmrs_symbol) && (k == ((start_sc+get_pdsch_dmrs_idx(n, k_prime, delta, dmrs_type))&((1<<11)-1)))) {
((int16_t*)txdataF[ap])[(l*frame_parms.ofdm_symbol_size + k)<<1] = (Wt[l_prime[0]]*Wf[k_prime]*(amp>>1)*mod_dmrs[dmrs_idx<<1]) >> 15;
((int16_t*)txdataF[ap])[((l*frame_parms.ofdm_symbol_size + k)<<1) + 1] = (Wt[l_prime[0]]*Wf[k_prime]*(amp>>1)*mod_dmrs[(dmrs_idx<<1) + 1]) >> 15;
#ifdef DEBUG_DLSCH_MAPPING
printf("dmrs_idx %d\t l %d \t k %d \t k_prime %d \t n %d \t txdataF: %d %d\n",
dmrs_idx, l, k, k_prime, n, ((int16_t*)txdataF[ap])[(l*frame_parms.ofdm_symbol_size + k)<<1], ((int16_t*)txdataF[ap])[((l*frame_parms.ofdm_symbol_size + k)<<1) + 1]);
dmrs_idx, l, k, k_prime, n, ((int16_t*)txdataF[ap])[(l*frame_parms.ofdm_symbol_size + k)<<1],
((int16_t*)txdataF[ap])[((l*frame_parms.ofdm_symbol_size + k)<<1) + 1]);
#endif
dmrs_idx++;
k_prime++;
@@ -347,20 +352,20 @@ dmrs_idx, l, k, k_prime, n, ((int16_t*)txdataF[ap])[(l*frame_parms.ofdm_symbol_s
else {
((int16_t*)txdataF[ap])[(l*frame_parms.ofdm_symbol_size + k)<<1] = (amp * tx_layers[ap][m<<1]) >> 15;
((int16_t*)txdataF[ap])[((l*frame_parms.ofdm_symbol_size + k)<<1) + 1] = (amp * tx_layers[ap][(m<<1) + 1]) >> 15;
((int16_t*)txdataF[ap])[(l*frame_parms.ofdm_symbol_size + k)<<1] = ((amp<<1) * tx_layers[ap][m<<1]) >> 15;
((int16_t*)txdataF[ap])[((l*frame_parms.ofdm_symbol_size + k)<<1) + 1] = ((amp<<1) * tx_layers[ap][(m<<1) + 1]) >> 15;
#ifdef DEBUG_DLSCH_MAPPING
printf("m %d\t l %d \t k %d \t txdataF: %d %d\n",
m, l, k, ((int16_t*)txdataF[ap])[(l*frame_parms.ofdm_symbol_size + k)<<1], ((int16_t*)txdataF[ap])[((l*frame_parms.ofdm_symbol_size + k)<<1) + 1]);
m, l, k, ((int16_t*)txdataF[ap])[(l*frame_parms.ofdm_symbol_size + k)<<1],
((int16_t*)txdataF[ap])[((l*frame_parms.ofdm_symbol_size + k)<<1) + 1]);
#endif
m++;
}
if (++k >= frame_parms.ofdm_symbol_size)
k -= frame_parms.ofdm_symbol_size;
}
}
}
#ifdef DEBUG_FILE_OUTPUT
write_output("txdataF_dlsch.m", "txdataF_dlsch", txdataF[0], frame_parms.samples_per_subframe_wCP>>1, 1, 1);
#endif
return 0;
}
openair1/PHY/NR_TRANSPORT/nr_pbch.c
-6
View File
@@ -432,11 +432,5 @@ int nr_generate_pbch(NR_gNB_PBCH *pbch,
}
#ifdef DEBUG_PBCH
write_output("txdataF_pbch.m", "txdataF_pbch", txdataF[0], frame_parms->samples_per_frame_wCP>>1, 1, 1);
#endif
return 0;
}
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
+2 -1
View File
@@ -142,8 +142,9 @@ void nr_schedule_css_dlsch_phytest(module_id_t module_idP,
dlsch_pdu_rel15->n_prb,
dlsch_pdu_rel15->start_symbol,
dlsch_pdu_rel15->nb_symbols,
dlsch_pdu_rel15->nb_layers,
dlsch_pdu_rel15->nb_codewords,
dlsch_pdu_rel15->nb_layers);
dlsch_pdu_rel15->mcs_idx);
dl_req->number_dci++;
dl_req->number_pdsch_rnti++;
targets/RT/USER/nr-ru.c
+2 -7
View File
@@ -819,7 +819,7 @@ void tx_rf(RU_t *ru) {
if ((SF_type == SF_DL) ||
(SF_type == SF_S)) {
int siglen=fp->samples_per_subframe,flags=1;
/*
if (SF_type == SF_S) {
@@ -844,12 +844,7 @@ void tx_rf(RU_t *ru) {
for (i=0; i<ru->nb_tx; i++)
txp[i] = (void*)&ru->common.txdata[i][(proc->subframe_tx*fp->samples_per_subframe)-sf_extension];
/*
if (proc->subframe_tx == 0){
write_output("txdataF_frame.m","txdataF_frame",&ru->common.txdataF_BF[i],fp->samples_per_subframe_wCP, 1, 1);
write_output("txdata_frame.m","txdata_frame",&ru->common.txdata[i],fp->samples_per_subframe, 1, 1);
}
*/
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (proc->timestamp_tx-ru->openair0_cfg.tx_sample_advance)&0xffffffff );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
// prepare tx buffer pointers