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Payload fixing

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This commit is contained in:
Guy De Souza
2018-10-30 18:17:53 +01:00
parent a66a1cf772
commit f18e6e42ab
1 changed files with 10 additions and 6 deletions
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openair1/PHY/NR_TRANSPORT/nr_dlsch.c
+10 -6
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@@ -205,6 +205,7 @@ uint8_t nr_generate_pdsch(NR_gNB_DLSCH_t dlsch,
uint16_t encoded_length = nb_symbols*Qm;
/// CRC, coding, interleaving and rate matching
memset((void*)harq->pdu, 1, (TBS>>3)*sizeof(uint8_t));
nr_dlsch_encoding(harq->pdu, subframe, &dlsch, &frame_parms);
#ifdef DEBUG_DLSCH
printf("PDSCH encoding:\nPayload:\n");
@@ -279,13 +280,13 @@ for (int l=0; l<rel15->nb_layers; l++)
//to be moved to init phase potentially, for now tx_layers 1-8 are mapped on antenna ports 1000-1007
/// DMRS QPSK modulation
uint16_t n_dmrs = rel15->n_prb*rel15->nb_re_dmrs;
uint16_t n_dmrs = (rel15->n_prb*rel15->nb_re_dmrs)<<1;
int16_t mod_dmrs[n_dmrs<<1];
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], n_dmrs, MOD_QPSK, mod_dmrs);
#ifdef DEBUG_DLSCH
printf("DMRS modulation (single symbol %d, %d symbols):\n", l0, n_dmrs);
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++) {
printf("%d %d\t", mod_dmrs[((i<<3)+j)<<1], mod_dmrs[(((i<<3)+j)<<1)+1]);
@@ -334,18 +335,21 @@ dmrs_idx, l, k, k_prime, n, ((int16_t*)txdataF[ap])[(l*frame_parms.ofdm_symbol_s
k_prime&=1;
}
((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;
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;
#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]);
#endif
m++;
m++;
}
}
}
#ifdef DEBUG_FILE_OUTPUT
write_output("txdataF_dlsch.m", "txdataF_dlsch", &txdataF[0][28*frame_parms.ofdm_symbol_size], frame_parms.samples_per_subframe_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;