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CCE-to-REG mapping extended for 2 or more DCI symbols

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This commit is contained in:
rmagueta
2021-05-18 11:07:08 +02:00
committed by francescomani
parent d6c70f85d2
commit b4bf06f791
2 changed files with 56 additions and 54 deletions
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openair1/PHY/NR_TRANSPORT/nr_dci.c
+51 -49
View File
@@ -182,62 +182,64 @@ void nr_generate_dci(PHY_VARS_gNB *gNB,
}
/*Mapping the encoded DCI along with the DMRS */
for (int cce_count = 0; cce_count < dci_pdu->AggregationLevel; cce_count ++) {
for(int symbol = 0; symbol < pdcch_pdu_rel15->DurationSymbols; symbol++) {
for (int cce_count = 0; cce_count < dci_pdu->AggregationLevel; cce_count+=pdcch_pdu_rel15->DurationSymbols) {
int8_t cce_idx = reg_list_order[cce_count];
int8_t cce_idx = reg_list_order[cce_count];
for (int reg_in_cce_idx = 0; reg_in_cce_idx < NR_NB_REG_PER_CCE; reg_in_cce_idx++) {
for (int reg_in_cce_idx = 0; reg_in_cce_idx < NR_NB_REG_PER_CCE; reg_in_cce_idx++) {
k = cset_start_sc + gNB->cce_list[d][cce_idx].reg_list[reg_in_cce_idx].start_sc_idx;
if (k >= frame_parms.ofdm_symbol_size)
k -= frame_parms.ofdm_symbol_size;
l = cset_start_symb + gNB->cce_list[d][cce_idx].reg_list[reg_in_cce_idx].symb_idx;
// dmrs index depends on reference point for k according to 38.211 7.4.1.3.2
if (pdcch_pdu_rel15->CoreSetType == NFAPI_NR_CSET_CONFIG_PDCCH_CONFIG)
dmrs_idx =(gNB->cce_list[d][cce_idx].reg_list[reg_in_cce_idx].reg_idx / pdcch_pdu_rel15->DurationSymbols) * 3;
else
dmrs_idx = (gNB->cce_list[d][cce_idx].reg_list[reg_in_cce_idx].reg_idx / pdcch_pdu_rel15->DurationSymbols + rb_offset) * 3;
k_prime = 0;
for (int m = 0; m < NR_NB_SC_PER_RB; m++) {
if (m == (k_prime << 2) + 1) { // DMRS if not already mapped
((int16_t *) txdataF)[(l * frame_parms.ofdm_symbol_size + k) << 1] =
(amp * mod_dmrs[l][dmrs_idx << 1]) >> 15;
((int16_t *) txdataF)[((l * frame_parms.ofdm_symbol_size + k) << 1) + 1] =
(amp * mod_dmrs[l][(dmrs_idx << 1) + 1]) >> 15;
#ifdef DEBUG_PDCCH_DMRS
printf("PDCCH DMRS: l %d position %d => (%d,%d)\n",l,k,((int16_t *)txdataF)[(l*frame_parms.ofdm_symbol_size + k)<<1],
((int16_t *)txdataF)[((l*frame_parms.ofdm_symbol_size + k)<<1)+1]);
#endif
dmrs_idx++;
k_prime++;
} else { // DCI payload
((int16_t *) txdataF)[(l * frame_parms.ofdm_symbol_size + k) << 1] = (amp * mod_dci[dci_idx << 1]) >> 15;
((int16_t *) txdataF)[((l * frame_parms.ofdm_symbol_size + k) << 1) + 1] =
(amp * mod_dci[(dci_idx << 1) + 1]) >> 15;
#ifdef DEBUG_DCI
printf("PDCCH: l %d position %d => (%d,%d)\n",l,k,((int16_t *)txdataF)[(l*frame_parms.ofdm_symbol_size + k)<<1],
((int16_t *)txdataF)[((l*frame_parms.ofdm_symbol_size + k)<<1)+1]);
#endif
dci_idx++;
}
k++;
k = cset_start_sc + gNB->cce_list[d][cce_idx].reg_list[reg_in_cce_idx].start_sc_idx;
if (k >= frame_parms.ofdm_symbol_size)
k -= frame_parms.ofdm_symbol_size;
} // m
} // reg_in_cce_idx
} // cce_count
l = cset_start_symb + symbol;
// dmrs index depends on reference point for k according to 38.211 7.4.1.3.2
if (pdcch_pdu_rel15->CoreSetType == NFAPI_NR_CSET_CONFIG_PDCCH_CONFIG)
dmrs_idx = (gNB->cce_list[d][cce_idx].reg_list[reg_in_cce_idx].reg_idx) * 3;
else
dmrs_idx = (gNB->cce_list[d][cce_idx].reg_list[reg_in_cce_idx].reg_idx + rb_offset) * 3;
k_prime = 0;
for (int m = 0; m < NR_NB_SC_PER_RB; m++) {
if (m == (k_prime << 2) + 1) { // DMRS if not already mapped
((int16_t *) txdataF)[(l * frame_parms.ofdm_symbol_size + k) << 1] =
(amp * mod_dmrs[l][dmrs_idx << 1]) >> 15;
((int16_t *) txdataF)[((l * frame_parms.ofdm_symbol_size + k) << 1) + 1] =
(amp * mod_dmrs[l][(dmrs_idx << 1) + 1]) >> 15;
#ifdef DEBUG_PDCCH_DMRS
printf("PDCCH DMRS: l %d position %d => (%d,%d)\n",l,k,((int16_t *)txdataF)[(l*frame_parms.ofdm_symbol_size + k)<<1],
((int16_t *)txdataF)[((l*frame_parms.ofdm_symbol_size + k)<<1)+1]);
#endif
dmrs_idx++;
k_prime++;
} else { // DCI payload
((int16_t *) txdataF)[(l * frame_parms.ofdm_symbol_size + k) << 1] = (amp * mod_dci[dci_idx << 1]) >> 15;
((int16_t *) txdataF)[((l * frame_parms.ofdm_symbol_size + k) << 1) + 1] =
(amp * mod_dci[(dci_idx << 1) + 1]) >> 15;
#ifdef DEBUG_DCI
printf("PDCCH: l %d position %d => (%d,%d)\n",l,k,((int16_t *)txdataF)[(l*frame_parms.ofdm_symbol_size + k)<<1],
((int16_t *)txdataF)[((l*frame_parms.ofdm_symbol_size + k)<<1)+1]);
#endif
dci_idx++;
}
k++;
if (k >= frame_parms.ofdm_symbol_size)
k -= frame_parms.ofdm_symbol_size;
} // m
} // reg_in_cce_idx
} // cce_count
} // symbol
LOG_D(PHY,
"DCI: payloadSize = %d | payload = %llx\n",
openair1/PHY/NR_TRANSPORT/nr_dci_tools.c
+5 -5
View File
@@ -136,7 +136,7 @@ void nr_fill_cce_list(PHY_VARS_gNB *gNB, uint8_t m, nfapi_nr_dl_tti_pdcch_pdu_r
get_coreset_rballoc(pdcch_pdu_rel15->FreqDomainResource,&n_rb,&rb_offset);
int N_reg = n_rb * pdcch_pdu_rel15->DurationSymbols;
int N_reg = n_rb;
int C=-1;
AssertFatal(N_reg > 0,"N_reg cannot be 0\n");
@@ -174,8 +174,8 @@ void nr_fill_cce_list(PHY_VARS_gNB *gNB, uint8_t m, nfapi_nr_dl_tti_pdcch_pdu_r
for (uint8_t reg_idx=0; reg_idx<bsize; reg_idx++) {
reg = &cce->reg_list[reg_idx];
reg->reg_idx = bsize*idx + reg_idx;
reg->start_sc_idx = (reg->reg_idx/pdcch_pdu_rel15->DurationSymbols) * NR_NB_SC_PER_RB;
reg->symb_idx = reg->reg_idx % pdcch_pdu_rel15->DurationSymbols;
reg->start_sc_idx = reg->reg_idx * NR_NB_SC_PER_RB;
reg->symb_idx = 0;
LOG_D(PHY, "reg %d symbol %d start subcarrier %d\n", reg->reg_idx, reg->symb_idx, reg->start_sc_idx);
}
}
@@ -185,8 +185,8 @@ void nr_fill_cce_list(PHY_VARS_gNB *gNB, uint8_t m, nfapi_nr_dl_tti_pdcch_pdu_r
for (uint8_t reg_idx=0; reg_idx<NR_NB_REG_PER_CCE; reg_idx++) {
reg = &cce->reg_list[reg_idx];
reg->reg_idx = cce->cce_idx*NR_NB_REG_PER_CCE + reg_idx;
reg->start_sc_idx = (reg->reg_idx/pdcch_pdu_rel15->DurationSymbols) * NR_NB_SC_PER_RB;
reg->symb_idx = reg->reg_idx % pdcch_pdu_rel15->DurationSymbols;
reg->start_sc_idx = reg->reg_idx * NR_NB_SC_PER_RB;
reg->symb_idx = 0;
LOG_D(PHY, "reg %d symbol %d start subcarrier %d\n", reg->reg_idx, reg->symb_idx, reg->start_sc_idx);
}