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This commit is contained in:
Guy De Souza
2018-10-29 15:58:10 +01:00
parent 8855ca03d3
commit afd3481698
2 changed files with 26 additions and 8 deletions
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openair1/PHY/NR_TRANSPORT/nr_dlsch.c
+24 -6
View File
@@ -34,7 +34,7 @@
#include "nr_dci.h"
#include "nr_sch_dmrs.h"
//#define DEBUG_DLSCH
#define DEBUG_DLSCH
uint8_t mod_order[5] = {1, 2, 4, 6, 8};
uint16_t mod_offset[5] = {1,3,7,23,87};
@@ -197,8 +197,10 @@ uint8_t nr_generate_pdsch(NR_gNB_DLSCH_t dlsch,
uint32_t scrambled_output[NR_MAX_NB_CODEWORDS][NR_MAX_PDSCH_ENCODED_LENGTH];
int16_t mod_symbs[NR_MAX_NB_CODEWORDS][NR_MAX_PDSCH_ENCODED_LENGTH>>1];
uint16_t tx_layers[NR_MAX_NB_LAYERS][NR_MAX_PDSCH_ENCODED_LENGTH>>1];
uint16_t n_symbs[NR_MAX_NB_CODEWORDS];
uint16_t n_symbs;
int8_t Wf[2], Wt[2], l0, delta;
uint16_t TBS = rel15->transport_block_size;
uint8_t Qm = rel15->modulation_order;
/// CRC, coding, interleaving and rate matching
nr_dlsch_encoding(harq->pdu, subframe, &dlsch, &frame_parms);
@@ -210,18 +212,34 @@ uint8_t nr_generate_pdsch(NR_gNB_DLSCH_t dlsch,
pdcch_params.scrambling_id : config.sch_config.physical_cell_id.value;
for (int q=0; q<rel15->nb_codewords; q++)
nr_pdsch_codeword_scrambling(harq->f,
rel15->transport_block_size,
TBS,
q,
Nid,
n_RNTI,
scrambled_output[q]);
#ifdef DEBUG_DLSCH
printf("PDSCH Scrambling(TBS %d): before \t after \n", TBS);
for (int i=0; i<TBS; i++) {
printf("%d\t%d\n", harq->f[i], scrambled_output[0][i]);
}
#endif
/// Modulation
n_symbs = TBS/Qm;
for (int q=0; q<rel15->nb_codewords; q++)
nr_pdsch_codeword_modulation(scrambled_output[q],
rel15->modulation_order,
rel15->transport_block_size,
Qm,
TBS,
mod_symbs[q]);
#ifdef DEBUG_DLSCH
printf("PDSCH Modulation: Qm %d()\n", Qm, n_symbs);
for (int i=0; i<n_symbs; i++)
for (int j=0; j<Qm; j++) {
printf("%d\t%d\n", mod_symbs[0][(i*Qm+j)<<1], mod_symbs[0][((i*Qm+j)<<1)+1]);
}
#endif
/// Layer mapping
nr_pdsch_layer_mapping(mod_symbs,
@@ -279,7 +297,7 @@ uint8_t nr_generate_pdsch(NR_gNB_DLSCH_t dlsch,
}
#ifdef DEBUG_DLSCH
write_output("txdataF_dlsch.m", "txdataF_dlsch", txdataF[0], frame_parms.samples_per_frame_wCP>>1, 1, 1);
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_tbs_tools.c
+2 -2
View File
@@ -121,8 +121,8 @@ void nr_get_tbs(nfapi_nr_dl_config_dlsch_pdu *dlsch_pdu,
uint16_t N_RE_prime = NR_NB_SC_PER_RB*N_sh_symb - N_PRB_DMRS - N_PRB_oh;
LOG_I(MAC, "N_RE_prime %d for %d symbols %d DMRS per PRB and %d overhead\n", N_RE_prime, N_sh_symb, N_PRB_DMRS, N_PRB_oh);
uint16_t N_RE, Ninfo, Ninfo_prime, C, TBS;
uint8_t table_idx, R, Qm, n, scale;
uint16_t N_RE, Ninfo, Ninfo_prime, C, TBS, R;
uint8_t table_idx, Qm, n, scale;
table_idx = get_table_idx(mcs_table, dci_format, rnti_type, ss_type);
scale = 10 + (((table_idx==2)&&((Imcs==20)||(Imcs==26)))?1:0);