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Fix REG to CCE mapping at UE

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This commit is contained in:
rmagueta
2021-01-23 18:40:30 +00:00
parent e2df86be88
commit 094f21a165
6 changed files with 60 additions and 44 deletions
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openair1/PHY/NR_UE_TRANSPORT/dci_nr.c
+49 -19
View File
@@ -81,12 +81,14 @@
void nr_pdcch_demapping_deinterleaving(uint32_t *llr,
uint32_t *z,
NR_DL_FRAME_PARMS *frame_parms,
uint8_t coreset_time_dur,
uint32_t coreset_nbr_rb,
uint8_t reg_bundle_size_L,
uint8_t coreset_interleaver_size_R,
uint8_t n_shift) {
uint8_t n_shift,
uint8_t number_of_candidates,
uint16_t *CCE,
uint8_t *L) {
/*
* This function will do demapping and deinterleaving from llr containing demodulated symbols
* Demapping will regroup in REG and bundles
@@ -122,35 +124,61 @@ void nr_pdcch_demapping_deinterleaving(uint32_t *llr,
| REG 0 (bundle 0) bundle 0 bundle 0
*/
int c=0,r=0;
uint16_t bundle_j=0, f_bundle_j=0,f_reg=0;
uint32_t coreset_C=0;
int c = 0, r = 0;
uint16_t bundle_j = 0, f_bundle_j = 0, f_reg = 0;
uint32_t coreset_C = 0;
uint16_t index_z, index_llr;
int coreset_interleaved = 0;
if (reg_bundle_size_L!=0) { // interleaving will be done only if reg_bundle_size_L != 0
coreset_interleaved=1;
coreset_C = (uint32_t)((coreset_nbr_rb * coreset_time_dur)/ (coreset_interleaver_size_R*reg_bundle_size_L));
if (reg_bundle_size_L != 0) { // interleaving will be done only if reg_bundle_size_L != 0
coreset_interleaved = 1;
coreset_C = (uint32_t) ((coreset_nbr_rb * coreset_time_dur) / (coreset_interleaver_size_R * reg_bundle_size_L));
} else {
reg_bundle_size_L=6;
reg_bundle_size_L = 6;
}
for(int reg=0; reg<((coreset_nbr_rb*coreset_time_dur)); reg++) {
if ((reg%reg_bundle_size_L) == 0) {
int f_bundle_j_list[MAX_DCI_CORESET] = {};
for (int reg = 0; reg < ((coreset_nbr_rb * coreset_time_dur)); reg++) {
if ((reg % reg_bundle_size_L) == 0) {
if (r == coreset_interleaver_size_R) {
r=0;
r = 0;
c++;
}
bundle_j = (c*coreset_interleaver_size_R)+r;
f_bundle_j = ((r*coreset_C)+c+n_shift)%((coreset_nbr_rb*coreset_time_dur)/reg_bundle_size_L);
bundle_j = (c * coreset_interleaver_size_R) + r;
f_bundle_j = ((r * coreset_C) + c + n_shift) % ((coreset_nbr_rb * coreset_time_dur) / reg_bundle_size_L);
if (coreset_interleaved==0) f_bundle_j=bundle_j;
if (coreset_interleaved == 0) f_bundle_j = bundle_j;
f_bundle_j_list[reg / 6] = f_bundle_j;
LOG_DNL("[r=%d,c=%d] bundle_j(%d) interleaved at f_bundle_j(%d)\n",r,c,bundle_j,f_bundle_j);
}
if ((reg % reg_bundle_size_L) == 0) r++;
}
f_reg = (f_bundle_j*reg_bundle_size_L)+(reg%reg_bundle_size_L);
// Get cce_list indices by reg_idx in ascending order
int f_bundle_j_list_id = 0;
int f_bundle_j_list_ord[MAX_DCI_CORESET] = {};
for (int c_id = 0; c_id < number_of_candidates; c_id++ ) {
f_bundle_j_list_id = CCE[c_id];
for (int p = 0; p < MAX_DCI_CORESET; p++) {
for (int p2 = CCE[c_id]; p2 < CCE[c_id] + L[c_id]; p2++) {
if (f_bundle_j_list[p2] == p) {
f_bundle_j_list_ord[f_bundle_j_list_id] = p;
f_bundle_j_list_id++;
break;
}
}
}
}
for(int reg=0; reg<((coreset_nbr_rb*coreset_time_dur)); reg++) {
f_reg = (f_bundle_j_list_ord[reg/6]*reg_bundle_size_L)+(reg%reg_bundle_size_L);
index_z = 9*reg;
index_llr = 9*((uint16_t)floor(f_reg/coreset_time_dur)+((f_reg%coreset_time_dur)*(coreset_nbr_rb)));
@@ -760,12 +788,14 @@ int32_t nr_rx_pdcch(PHY_VARS_NR_UE *ue,
LOG_D(PHY,"we enter nr_pdcch_demapping_deinterleaving()\n");
nr_pdcch_demapping_deinterleaving((uint32_t *) pdcch_vars->llr,
(uint32_t *) pdcch_vars->e_rx,
frame_parms,
rel15->coreset.duration,
n_rb,
rel15->coreset.RegBundleSize,
rel15->coreset.InterleaverSize,
rel15->coreset.ShiftIndex);
rel15->coreset.ShiftIndex,
rel15->number_of_candidates,
rel15->CCE,
rel15->L);
/*
nr_pdcch_unscrambling(rel15->rnti,
frame_parms,