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readded scrambling

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This commit is contained in:
Guy De Souza
2018-09-04 11:56:48 +02:00
parent 581605e8e8
commit 854e0a6818
1 changed files with 11 additions and 4 deletions
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openair1/PHY/NR_TRANSPORT/nr_dci.c
+11 -4
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@@ -207,7 +207,9 @@ uint8_t nr_generate_dci_top(NR_gNB_PDCCH pdcch_vars,
/// DCI payload processing
// CRC attachment + Scrambling + Channel coding + Rate matching
uint32_t encoder_output[NR_MAX_DCI_SIZE_DWORD];
uint16_t n_RNTI = (pdcch_params.search_space_type == NFAPI_NR_SEARCH_SPACE_TYPE_UE_SPECIFIC)? pdcch_params.rnti : 0;
uint32_t scrambled_output[NR_MAX_DCI_SIZE_DWORD];
uint16_t n_RNTI = (pdcch_params.search_space_type == NFAPI_NR_SEARCH_SPACE_TYPE_UE_SPECIFIC)? ((pdcch_params.scrambling_id)?pdcch_params.rnti:0) : 0;
uint16_t Nid = (pdcch_params.search_space_type == NFAPI_NR_SEARCH_SPACE_TYPE_UE_SPECIFIC)? pdcch_params.scrambling_id : config.sch_config.physical_cell_id.value;
#ifdef PDCCH_TEST_POLAR_TEMP_FIX
t_nrPolar_paramsPtr currentPtr = NULL;//, polarParams = NULL;
nr_polar_init(&currentPtr, NR_POLAR_DCI_MESSAGE_TYPE, dci_alloc.size, dci_alloc.L);
@@ -224,11 +226,12 @@ uint8_t nr_generate_dci_top(NR_gNB_PDCCH pdcch_vars,
printf("Encoded Payload: [0]->0x%08x \t [1]->0x%08x \t [2]->0x%08x \t [3]->0x%08x\n",
encoder_output[0], encoder_output[1], encoder_output[2], encoder_output[3]);
#endif
nr_pdcch_scrambling(encoder_output, encoded_length, Nid, n_RNTI, scrambled_output);
// QPSK modulation
int16_t mod_dci[NR_MAX_DCI_SIZE>>1];
for (int i=0; i<encoded_length>>1; i++) {
idx = (((encoder_output[i<<1]>>(i<<1))&1)<<1) ^ ((encoder_output[(i<<1)+1]>>((i<<1)+1))&1);
idx = (((scrambled_output[i<<1]>>(i<<1))&1)<<1) ^ ((scrambled_output[(i<<1)+1]>>((i<<1)+1))&1);
mod_dci[i<<1] = nr_mod_table[(NR_MOD_TABLE_QPSK_OFFSET + idx)<<1];
mod_dci[(i<<1)+1] = nr_mod_table[((NR_MOD_TABLE_QPSK_OFFSET + idx)<<1) + 1];
#ifdef DEBUG_DCI
@@ -258,8 +261,12 @@ uint8_t nr_generate_dci_top(NR_gNB_PDCCH pdcch_vars,
reg_mapping_list[reg.symb_idx*regs_per_symb + symb_idx[reg.symb_idx]++] = reg;
}
}
printf("REG list reordered: %d %d %d %d %d %d %d %d\n", reg_mapping_list[0].reg_idx, reg_mapping_list[1].reg_idx, reg_mapping_list[2].reg_idx, reg_mapping_list[3].reg_idx,
reg_mapping_list[4].reg_idx, reg_mapping_list[5].reg_idx, reg_mapping_list[6].reg_idx, reg_mapping_list[7].reg_idx);
#ifdef DEBUG_DCI
printf("\n Ordered REG list:\n");
for (int i=0; i<nb_regs; i++)
printf("%d\t",reg_mapping_list[i].reg_idx );
printf("\n");
#endif
/*Now mapping based on newly constructed list*/
for (int reg_idx=0; reg_idx<nb_regs; reg_idx++) {