maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix scramblingID and gold sequence for PDCCH and PDSCH

Browse Source
This commit is contained in:
rmagueta
2022-02-15 17:04:50 +00:00
parent 141b9d2c0f
commit ff8c47d3aa
2 changed files with 11 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/INIT/nr_init_ue.c
-9
View File
@@ -272,9 +272,6 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue,
}
}
ue->scramblingID_pdcch = fp->Nid_cell;
nr_gold_pdcch(ue,fp->Nid_cell);
//PDSCH DMRS init (eNB offset = 0)
ue->nr_gold_pdsch[0] = (uint32_t ****)malloc16(fp->slots_per_frame*sizeof(uint32_t ***));
uint32_t ****pdsch_dmrs = ue->nr_gold_pdsch[0];
@@ -294,12 +291,6 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue,
}
}
// initializing the scrambling IDs for PDSCH DMRS
for (int i=0; i<2; i++)
ue->scramblingID[i]=fp->Nid_cell;
nr_gold_pdsch(ue,ue->scramblingID);
// DLSCH
for (gNB_id = 0; gNB_id < ue->n_connected_gNB; gNB_id++) {
for (th_id=0; th_id<RX_NB_TH_MAX; th_id++) {
openair1/PHY/NR_UE_TRANSPORT/nr_initial_sync.c
+11
View File
@@ -304,6 +304,17 @@ int nr_initial_sync(UE_nr_rxtx_proc_t *proc,
sync_pos_frame = n_symb_prefix0*(fp->ofdm_symbol_size + fp->nb_prefix_samples0)+(ue->symbol_offset-n_symb_prefix0)*(fp->ofdm_symbol_size + fp->nb_prefix_samples);
// for a correct computation of frame number to sync with the one decoded at MIB we need to take into account in which of the n_frames we got sync
ue->init_sync_frame = n_frames - 1 - is;
// compute the scramblingID_pdcch and the gold pdcch
ue->scramblingID_pdcch = fp->Nid_cell;
nr_gold_pdcch(ue,fp->Nid_cell);
// compute the scrambling IDs for PDSCH DMRS
for (int i=0; i<2; i++)
ue->scramblingID[i]=fp->Nid_cell;
nr_gold_pdsch(ue,ue->scramblingID);
// we also need to take into account the shift by samples_per_frame in case the if is true
if (ue->ssb_offset < sync_pos_frame){
ue->rx_offset = fp->samples_per_frame - sync_pos_frame + ue->ssb_offset;