Merge remote-tracking branch 'origin/nr_gold_init_improv' into integration_2022_wk15

nfapi/open-nFAPI/nfapi/public_inc/fapi_nr_ue_interface.h

@@ -464,7 +464,8 @@ typedef struct {
   uint8_t nEpreRatioOfPDSCHToPTRS;
   /// MCS table for this DLSCH
   uint8_t mcs_table;
-
+  uint8_t nscid;
+  uint16_t dlDmrsScramblingId;
   uint16_t pduBitmap;
 } fapi_nr_dl_config_dlsch_pdu_rel15_t;
 

openair1/PHY/INIT/nr_init.c

@@ -536,6 +536,7 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
   }
 
   nr_generate_modulation_table();
+  gNB->pdcch_gold_init = cfg->cell_config.phy_cell_id.value;
   nr_init_pdcch_dmrs(gNB, cfg->cell_config.phy_cell_id.value);
   nr_init_pbch_interleaver(gNB->nr_pbch_interleaver);
 
@@ -549,28 +550,30 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
     pdsch_dmrs[slot] = (uint32_t ***)malloc16(fp->symbols_per_slot*sizeof(uint32_t **));
     AssertFatal(pdsch_dmrs[slot]!=NULL, "NR init: pdsch_dmrs for slot %d - malloc failed\n", slot);
 
-    int nb_codewords = NR_MAX_NB_LAYERS > 4 ? 2 : 1;
     for (int symb=0; symb<fp->symbols_per_slot; symb++) {
-      pdsch_dmrs[slot][symb] = (uint32_t **)malloc16(nb_codewords*sizeof(uint32_t *));
+      pdsch_dmrs[slot][symb] = (uint32_t **)malloc16(NR_NB_NSCID*sizeof(uint32_t *));
       AssertFatal(pdsch_dmrs[slot][symb]!=NULL, "NR init: pdsch_dmrs for slot %d symbol %d - malloc failed\n", slot, symb);
 
-      for (int q=0; q<nb_codewords; q++) {
+      for (int q=0; q<NR_NB_NSCID; q++) {
         pdsch_dmrs[slot][symb][q] = (uint32_t *)malloc16(pdsch_dmrs_init_length*sizeof(uint32_t));
-        AssertFatal(pdsch_dmrs[slot][symb][q]!=NULL, "NR init: pdsch_dmrs for slot %d symbol %d codeword %d - malloc failed\n", slot, symb, q);
+        AssertFatal(pdsch_dmrs[slot][symb][q]!=NULL, "NR init: pdsch_dmrs for slot %d symbol %d nscid %d - malloc failed\n", slot, symb, q);
       }
     }
   }
 
-  nr_init_pdsch_dmrs(gNB, cfg->cell_config.phy_cell_id.value);
+
+  for (int nscid = 0; nscid < NR_NB_NSCID; nscid++) {
+    gNB->pdsch_gold_init[nscid] = cfg->cell_config.phy_cell_id.value;
+    nr_init_pdsch_dmrs(gNB, nscid, cfg->cell_config.phy_cell_id.value);
+  }
 
   //PUSCH DMRS init
-  gNB->nr_gold_pusch_dmrs = (uint32_t ****)malloc16(2*sizeof(uint32_t ***));
+  gNB->nr_gold_pusch_dmrs = (uint32_t ****)malloc16(NR_NB_NSCID*sizeof(uint32_t ***));
 
   uint32_t ****pusch_dmrs = gNB->nr_gold_pusch_dmrs;
 
-  // ceil(((NB_RB*6(k)*2(QPSK)/32) // 3 RE *2(QPSK)
   int pusch_dmrs_init_length =  ((fp->N_RB_UL*12)>>5)+1;
-  for(int nscid=0; nscid<2; nscid++) {
+  for(int nscid=0; nscid<NR_NB_NSCID; nscid++) {
     pusch_dmrs[nscid] = (uint32_t ***)malloc16(fp->slots_per_frame*sizeof(uint32_t **));
     AssertFatal(pusch_dmrs[nscid]!=NULL, "NR init: pusch_dmrs for nscid %d - malloc failed\n", nscid);
 
@@ -585,9 +588,10 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
     }
   }
 
-  uint32_t Nid_pusch[2] = {cfg->cell_config.phy_cell_id.value,cfg->cell_config.phy_cell_id.value};
-  LOG_D(PHY,"Initializing PUSCH DMRS Gold sequence with (%x,%x)\n",Nid_pusch[0],Nid_pusch[1]);
-  nr_gold_pusch(gNB, &Nid_pusch[0]);
+  for (int nscid=0; nscid<NR_NB_NSCID; nscid++) {
+    gNB->pusch_gold_init[nscid] = cfg->cell_config.phy_cell_id.value;
+    nr_gold_pusch(gNB, nscid, gNB->pusch_gold_init[nscid]);
+  }
 
   //CSI RS init
   gNB->nr_gold_csi_rs = (uint32_t ***)malloc16(fp->slots_per_frame*sizeof(uint32_t **));
@@ -607,6 +611,7 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
     }
   }
 
+  gNB->csi_gold_init = cfg->cell_config.phy_cell_id.value;
   nr_init_csi_rs(gNB, cfg->cell_config.phy_cell_id.value);
 
   for (int id=0; id<NUMBER_OF_NR_SRS_MAX; id++) {
@@ -644,12 +649,12 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
   common_vars->beam_id = (uint8_t **)malloc16(Ptx*sizeof(uint8_t*));
 
   for (i=0;i<Ptx;i++){
-      common_vars->txdataF[i] = (int32_t*)malloc16_clear(fp->samples_per_frame_wCP*sizeof(int32_t)); // [hna] samples_per_frame without CP
-      LOG_D(PHY,"[INIT] common_vars->txdataF[%d] = %p (%lu bytes)\n",
-	    i,common_vars->txdataF[i],
-	    fp->samples_per_frame_wCP*sizeof(int32_t));
-      common_vars->beam_id[i] = (uint8_t*)malloc16_clear(fp->symbols_per_slot*fp->slots_per_frame*sizeof(uint8_t));
-      memset(common_vars->beam_id[i],255,fp->symbols_per_slot*fp->slots_per_frame);
+    common_vars->txdataF[i] = (int32_t*)malloc16_clear(fp->samples_per_frame_wCP*sizeof(int32_t)); // [hna] samples_per_frame without CP
+    LOG_D(PHY,"[INIT] common_vars->txdataF[%d] = %p (%lu bytes)\n",
+          i,common_vars->txdataF[i],
+          fp->samples_per_frame_wCP*sizeof(int32_t));
+    common_vars->beam_id[i] = (uint8_t*)malloc16_clear(fp->symbols_per_slot*fp->slots_per_frame*sizeof(uint8_t));
+    memset(common_vars->beam_id[i],255,fp->symbols_per_slot*fp->slots_per_frame);
   }
   for (i=0;i<Prx;i++){
     common_vars->rxdataF[i] = (int32_t*)malloc16_clear(fp->samples_per_frame_wCP*sizeof(int32_t));
@@ -740,10 +745,9 @@ void phy_free_nr_gNB(PHY_VARS_gNB *gNB)
   free_and_zero(pdcch_dmrs);
 
   uint32_t ****pdsch_dmrs = gNB->nr_gold_pdsch_dmrs;
-  int nb_codewords = NR_MAX_NB_LAYERS > 4 ? 2 : 1;
   for (int slot = 0; slot < fp->slots_per_frame; slot++) {
     for (int symb = 0; symb < fp->symbols_per_slot; symb++) {
-      for (int q = 0; q < nb_codewords; q++)
+      for (int q = 0; q < NR_NB_NSCID; q++)
         free_and_zero(pdsch_dmrs[slot][symb][q]);
       free_and_zero(pdsch_dmrs[slot][symb]);
     }
@@ -771,7 +775,7 @@ void phy_free_nr_gNB(PHY_VARS_gNB *gNB)
   free_and_zero(csi_rs);
 
   for (int id = 0; id < NUMBER_OF_NR_SRS_MAX; id++) {
-    for (int i = 0; i < Prx; i++){
+    for (int i = 0; i < Prx; i++) {
       free_and_zero(gNB->nr_srs_info[id]->srs_received_signal[i]);
       free_and_zero(gNB->nr_srs_info[id]->srs_ls_estimated_channel[i]);
       free_and_zero(gNB->nr_srs_info[id]->srs_estimated_channel_freq[i]);

openair1/PHY/INIT/nr_init_ue.c

@@ -210,18 +210,21 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
 
   // ceil(((NB_RB*6(k)*2(QPSK)/32) // 3 RE *2(QPSK)
   int pusch_dmrs_init_length =  ((fp->N_RB_UL*12)>>5)+1;
-
-  ue->nr_gold_pusch_dmrs = (uint32_t ***)malloc16(fp->slots_per_frame*sizeof(uint32_t **));
-  uint32_t ***pusch_dmrs = ue->nr_gold_pusch_dmrs;
+  ue->nr_gold_pusch_dmrs = (uint32_t ****)malloc16(fp->slots_per_frame*sizeof(uint32_t ***));
+  uint32_t ****pusch_dmrs = ue->nr_gold_pusch_dmrs;
 
   for (slot=0; slot<fp->slots_per_frame; slot++) {
-    pusch_dmrs[slot] = (uint32_t **)malloc16(fp->symbols_per_slot*sizeof(uint32_t *));
+    pusch_dmrs[slot] = (uint32_t ***)malloc16(fp->symbols_per_slot*sizeof(uint32_t **));
     AssertFatal(pusch_dmrs[slot]!=NULL, "init_nr_ue_signal: pusch_dmrs for slot %d - malloc failed\n", slot);
 
     for (symb=0; symb<fp->symbols_per_slot; symb++) {
-      pusch_dmrs[slot][symb] = (uint32_t *)malloc16(pusch_dmrs_init_length*sizeof(uint32_t));
+      pusch_dmrs[slot][symb] = (uint32_t **)malloc16(NR_NB_NSCID*sizeof(uint32_t *));
       AssertFatal(pusch_dmrs[slot][symb]!=NULL, "init_nr_ue_signal: pusch_dmrs for slot %d symbol %d - malloc failed\n", slot, symb);
 
+      for (int q=0; q<NR_NB_NSCID; q++) {
+        pusch_dmrs[slot][symb][q] = (uint32_t *)malloc16(pusch_dmrs_init_length*sizeof(uint32_t));
+        AssertFatal(pusch_dmrs[slot][symb][q]!=NULL, "init_nr_ue_signal: pusch_dmrs for slot %d symbol %d nscid %d - malloc failed\n", slot, symb, q);
+      }
     }
   }
 
@@ -298,14 +301,13 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
     pdsch_dmrs[slot] = (uint32_t ***)malloc16(fp->symbols_per_slot*sizeof(uint32_t **));
     AssertFatal(pdsch_dmrs[slot]!=NULL, "NR init: pdsch_dmrs for slot %d - malloc failed\n", slot);
 
-    int nb_codewords = NR_MAX_NB_LAYERS > 4 ? 2 : 1;
     for (int symb=0; symb<fp->symbols_per_slot; symb++) {
-      pdsch_dmrs[slot][symb] = (uint32_t **)malloc16(nb_codewords*sizeof(uint32_t *));
+      pdsch_dmrs[slot][symb] = (uint32_t **)malloc16(NR_NB_NSCID*sizeof(uint32_t *));
       AssertFatal(pdsch_dmrs[slot][symb]!=NULL, "NR init: pdsch_dmrs for slot %d symbol %d - malloc failed\n", slot, symb);
 
-      for (int q=0; q<nb_codewords; q++) {
+      for (int q=0; q<NR_NB_NSCID; q++) {
         pdsch_dmrs[slot][symb][q] = (uint32_t *)malloc16(pdsch_dmrs_init_length*sizeof(uint32_t));
-        AssertFatal(pdsch_dmrs[slot][symb][q]!=NULL, "NR init: pdsch_dmrs for slot %d symbol %d codeword %d - malloc failed\n", slot, symb, q);
+        AssertFatal(pdsch_dmrs[slot][symb][q]!=NULL, "NR init: pdsch_dmrs for slot %d symbol %d nscid %d - malloc failed\n", slot, symb, q);
       }
     }
   }
@@ -424,6 +426,8 @@ void term_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
 
   for (int slot = 0; slot < fp->slots_per_frame; slot++) {
     for (int symb = 0; symb < fp->symbols_per_slot; symb++) {
+      for (int q=0; q<NR_NB_NSCID; q++)
+        free_and_zero(ue->nr_gold_pusch_dmrs[slot][symb][q]);
       free_and_zero(ue->nr_gold_pusch_dmrs[slot][symb]);
     }
     free_and_zero(ue->nr_gold_pusch_dmrs[slot]);
@@ -457,10 +461,9 @@ void term_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
   }
   free_and_zero(ue->nr_gold_pdcch[0]);
 
-  int nb_codewords = NR_MAX_NB_LAYERS > 4 ? 2 : 1;
   for (int slot=0; slot<fp->slots_per_frame; slot++) {
     for (int symb=0; symb<fp->symbols_per_slot; symb++) {
-      for (int q=0; q<nb_codewords; q++) 
+      for (int q=0; q<NR_NB_NSCID; q++)
         free_and_zero(ue->nr_gold_pdsch[0][slot][symb][q]);
       free_and_zero(ue->nr_gold_pdsch[0][slot][symb]);
     }

openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c

@@ -165,6 +165,11 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
 
   //------------------generate DMRS------------------//
 
+  if(pusch_pdu->ul_dmrs_scrambling_id != gNB->pusch_gold_init[pusch_pdu->scid])  {
+    gNB->pusch_gold_init[pusch_pdu->scid] = pusch_pdu->ul_dmrs_scrambling_id;
+    nr_gold_pusch(gNB, pusch_pdu->scid, pusch_pdu->ul_dmrs_scrambling_id);
+  }
+
   // transform precoding = 1 means disabled
   if (pusch_pdu->transform_precoding == 1) {
     nr_pusch_dmrs_rx(gNB, Ns, gNB->nr_gold_pusch_dmrs[pusch_pdu->scid][Ns][symbol], &pilot[0], 1000, 0, nb_rb_pusch,
@@ -1247,4 +1252,4 @@ int nr_srs_channel_estimation(PHY_VARS_gNB *gNB,
 #endif
 
   return 0;
-}
+}
\ No newline at end of file

openair1/PHY/NR_REFSIG/nr_gold.c

@@ -78,57 +78,47 @@ void nr_init_pdcch_dmrs(PHY_VARS_gNB* gNB, uint32_t Nid)
 }
 
 
-void nr_init_pdsch_dmrs(PHY_VARS_gNB* gNB, uint32_t Nid)
-{
+void nr_init_pdsch_dmrs(PHY_VARS_gNB* gNB, uint8_t nscid, uint32_t Nid) {
   
   uint32_t x1, x2;
   uint8_t reset;
   NR_DL_FRAME_PARMS *fp = &gNB->frame_parms;
   uint32_t ****pdsch_dmrs = gNB->nr_gold_pdsch_dmrs;
   int pdsch_dmrs_init_length =  ((fp->N_RB_DL*12)>>5)+1;
-  int nb_codewords = NR_MAX_NB_LAYERS > 4 ? 2 : 1;
-  uint16_t N_n_scid[2]={Nid, Nid};
-  uint8_t n_scid=0; // again works only for 1_0
+
   for (uint8_t slot=0; slot<fp->slots_per_frame; slot++) {
 
     for (uint8_t symb=0; symb<fp->symbols_per_slot; symb++) {
-        reset = 1;
-        x2 = ((1<<17) * (fp->symbols_per_slot*slot+symb+1) * ((N_n_scid[n_scid]<<1)+1) +((N_n_scid[n_scid]<<1)+n_scid));
-	      LOG_D(PHY,"PDSCH DMRS slot %d, symb %d x2 %x, N_n_scid %d,n_scid %d\n",slot,symb,x2,N_n_scid[n_scid],n_scid);
-        for (uint32_t n=0; n<pdsch_dmrs_init_length; n++) {
-          pdsch_dmrs[slot][symb][0][n] = lte_gold_generic(&x1, &x2, reset);
-          reset = 0;
-        }
-
-        if(nb_codewords>1)
-          memcpy(pdsch_dmrs[slot][symb][1],pdsch_dmrs[slot][symb][0],sizeof(uint32_t)*pdsch_dmrs_init_length);
+      reset = 1;
+      x2 = ((1<<17) * (fp->symbols_per_slot*slot+symb+1) * ((Nid<<1)+1) +((Nid<<1)+nscid));
+      LOG_D(PHY,"PDSCH DMRS slot %d, symb %d x2 %x, Nid %d,nscid %d\n",slot,symb,x2,Nid,nscid);
+      for (uint32_t n=0; n<pdsch_dmrs_init_length; n++) {
+        pdsch_dmrs[slot][symb][nscid][n] = lte_gold_generic(&x1, &x2, reset);
+        reset = 0;
+      }
     }
   }
 }
 
 
-void nr_gold_pusch(PHY_VARS_gNB* gNB, uint32_t *Nid) {
+void nr_gold_pusch(PHY_VARS_gNB* gNB, int nscid, uint32_t nid) {
 
   unsigned char ns;
   unsigned int n,x1,x2;
-  int nscid, reset;
-  unsigned int nid;
+  int reset;
   NR_DL_FRAME_PARMS *fp = &gNB->frame_parms;
   unsigned short l;
   int pusch_dmrs_init_length =  ((fp->N_RB_UL*12)>>5)+1;
 
-  for (nscid=0; nscid<2; nscid++) {
-    nid = Nid[nscid];
-    for (ns=0; ns<fp->slots_per_frame; ns++) {
-      for (l=0; l<fp->symbols_per_slot; l++) {
-        reset = 1;
-        x2 = ((1<<17) * (fp->symbols_per_slot*ns+l+1) * ((nid<<1)+1) +((nid<<1)+nscid));
-        LOG_D(PHY,"DMRS slot %d, symb %d x2 %x\n",ns,l,x2);
-
-        for (n=0; n<pusch_dmrs_init_length; n++) {
-          gNB->nr_gold_pusch_dmrs[nscid][ns][l][n] = lte_gold_generic(&x1, &x2, reset);
-          reset = 0;
-        }
+  for (ns=0; ns<fp->slots_per_frame; ns++) {
+    for (l=0; l<fp->symbols_per_slot; l++) {
+      reset = 1;
+      x2 = ((1<<17) * (fp->symbols_per_slot*ns+l+1) * ((nid<<1)+1) +((nid<<1)+nscid));
+      LOG_D(PHY,"DMRS slot %d, symb %d x2 %x\n",ns,l,x2);
+
+      for (n=0; n<pusch_dmrs_init_length; n++) {
+        gNB->nr_gold_pusch_dmrs[nscid][ns][l][n] = lte_gold_generic(&x1, &x2, reset);
+        reset = 0;
       }
     }
   }

openair1/PHY/NR_REFSIG/nr_gold_ue.c

@@ -76,46 +76,38 @@ void nr_gold_pdcch(PHY_VARS_NR_UE* ue,
 }
 
 void nr_gold_pdsch(PHY_VARS_NR_UE* ue,
-                   unsigned short *n_idDMRS)
-{
+                   int nscid,
+                   uint32_t nid) {
 
   unsigned int x1,x2,x2tmp0;
-  unsigned int nid;
   uint8_t reset;
   int pdsch_dmrs_init_length =  ((ue->frame_parms.N_RB_DL*12)>>5)+1;
-  int nb_codewords = NR_MAX_NB_LAYERS > 4 ? 2 : 1;
-  /// to be updated from higher layer
-  //unsigned short lbar = 0;
-
-  for (int nscid=0; nscid<nb_codewords; nscid++) {
-    for (int ns=0; ns<ue->frame_parms.slots_per_frame; ns++) {
 
-      nid = n_idDMRS[nscid];
+  for (int ns=0; ns<ue->frame_parms.slots_per_frame; ns++) {
 
-      for (int l=0; l<ue->frame_parms.symbols_per_slot; l++) {
+    for (int l=0; l<ue->frame_parms.symbols_per_slot; l++) {
 
-        reset = 1;
-        x2tmp0 = ((ue->frame_parms.symbols_per_slot*ns+l+1)*((nid<<1)+1))<<17;
-        x2 = (x2tmp0+(nid<<1)+nscid)%(1U<<31);  //cinit
-        LOG_D(PHY,"UE DMRS slot %d, symb %d, x2 %x, nscid %d\n",ns,l,x2,nscid);
+      reset = 1;
+      x2tmp0 = ((ue->frame_parms.symbols_per_slot*ns+l+1)*((nid<<1)+1))<<17;
+      x2 = (x2tmp0+(nid<<1)+nscid)%(1U<<31);  //cinit
+      LOG_D(PHY,"UE DMRS slot %d, symb %d, x2 %x, nscid %d\n",ns,l,x2,nscid);
 
-        for (int n=0; n<pdsch_dmrs_init_length; n++) {
-          ue->nr_gold_pdsch[0][ns][l][nscid][n] = lte_gold_generic(&x1, &x2, reset);
-          reset = 0;
-        }
+      for (int n=0; n<pdsch_dmrs_init_length; n++) {
+        ue->nr_gold_pdsch[0][ns][l][nscid][n] = lte_gold_generic(&x1, &x2, reset);
+        reset = 0;
       }
     }
   }
 }
 
 void nr_init_pusch_dmrs(PHY_VARS_NR_UE* ue,
-                        uint16_t *N_n_scid,
+                        uint16_t N_n_scid,
                         uint8_t n_scid)
 {
   uint32_t x1, x2, n;
   uint8_t reset, slot, symb;
   NR_DL_FRAME_PARMS *fp = &ue->frame_parms;
-  uint32_t ***pusch_dmrs = ue->nr_gold_pusch_dmrs;
+  uint32_t ****pusch_dmrs = ue->nr_gold_pusch_dmrs;
   int pusch_dmrs_init_length =  ((fp->N_RB_UL*12)>>5)+1;
 
   for (slot=0; slot<fp->slots_per_frame; slot++) {
@@ -123,10 +115,10 @@ void nr_init_pusch_dmrs(PHY_VARS_NR_UE* ue,
     for (symb=0; symb<fp->symbols_per_slot; symb++) {
 
       reset = 1;
-      x2 = ((1<<17) * (fp->symbols_per_slot*slot+symb+1) * ((N_n_scid[n_scid]<<1)+1) +((N_n_scid[n_scid]<<1)+n_scid));
-
+      x2 = ((1<<17) * (fp->symbols_per_slot*slot+symb+1) * ((N_n_scid<<1)+1) +((N_n_scid<<1)+n_scid));
+      LOG_D(PHY,"DMRS slot %d, symb %d x2 %x\n",slot,symb,x2);
       for (n=0; n<pusch_dmrs_init_length; n++) {
-        pusch_dmrs[slot][symb][n] = lte_gold_generic(&x1, &x2, reset);
+        pusch_dmrs[slot][symb][n_scid][n] = lte_gold_generic(&x1, &x2, reset);
         reset = 0;
       }
     }

openair1/PHY/NR_REFSIG/nr_refsig.h

@@ -37,10 +37,10 @@ void nr_init_pbch_dmrs(PHY_VARS_gNB* gNB);
 @param Nid is used for the initialization of x2, Physical cell Id by default or upper layer configured pdcch_scrambling_ID
  */
 void nr_init_pdcch_dmrs(PHY_VARS_gNB* gNB, uint32_t Nid);
-void nr_init_pdsch_dmrs(PHY_VARS_gNB* gNB, uint32_t Nid);
+void nr_init_pdsch_dmrs(PHY_VARS_gNB* gNB, uint8_t nscid, uint32_t Nid);
 void nr_init_csi_rs(PHY_VARS_gNB* gNB, uint32_t Nid);
 
-void nr_gold_pusch(PHY_VARS_gNB* gNB, uint32_t *Nid);
+void nr_gold_pusch(PHY_VARS_gNB* gNB, int nscid, uint32_t nid);
 
 int nr_pusch_dmrs_rx(PHY_VARS_gNB *gNB,
                      unsigned int Ns,

openair1/PHY/NR_REFSIG/refsig_defs_ue.h

@@ -61,10 +61,11 @@ void nr_gold_pdcch(PHY_VARS_NR_UE* ue,
                    unsigned short n_idDMRS);
 
 void nr_gold_pdsch(PHY_VARS_NR_UE* ue,
-                   unsigned short *n_idDMRS);
+                   int nscid,
+                   uint32_t nid);
 
 void nr_init_pusch_dmrs(PHY_VARS_NR_UE* ue,
-                        uint16_t *N_n_scid,
+                        uint16_t N_n_scid,
                         uint8_t n_scid);
 
 #endif

openair1/PHY/NR_TRANSPORT/nr_csi_rs.c

@@ -30,7 +30,6 @@
 void nr_generate_csi_rs(PHY_VARS_gNB *gNB,
                         int16_t amp,
                         nfapi_nr_dl_tti_csi_rs_pdu_rel15_t csi_params,
-                        uint16_t cell_id,
                         int slot){
 
   NR_DL_FRAME_PARMS frame_parms=gNB->frame_parms;
@@ -52,20 +51,10 @@ void nr_generate_csi_rs(PHY_VARS_gNB *gNB,
 
   AssertFatal(b!=0, "Invalid CSI frequency domain mapping: no bit selected in bitmap\n");
 
-  // pre-computed for scrambling id equel to cell id
-  // if the scrambling id is not the cell id we need to re-initialize the rs
-  if (csi_params.scramb_id != cell_id) {
-    uint8_t reset;
-    uint32_t x1, x2;
-    uint32_t Nid = csi_params.scramb_id;
-    for (uint8_t symb=0; symb<frame_parms.symbols_per_slot; symb++) {
-      reset = 1;
-      x2 = ((1<<10) * (frame_parms.symbols_per_slot*slot+symb+1) * ((Nid<<1)+1) + (Nid));
-      for (uint32_t n=0; n<(csi_rs_length>>5)+1; n++) {
-        gold_csi_rs[symb][n] = lte_gold_generic(&x1, &x2, reset);
-        reset = 0;
-      }
-    }
+  // if the scrambling id is not the one previously used to initialize we need to re-initialize the rs
+  if (csi_params.scramb_id != gNB->csi_gold_init) {
+    gNB->csi_gold_init = csi_params.scramb_id;
+    nr_init_csi_rs(gNB, csi_params.scramb_id);
   }
 
   switch (csi_params.row) {

openair1/PHY/NR_TRANSPORT/nr_dci.c

@@ -66,11 +66,12 @@ void nr_pdcch_scrambling(uint32_t *in,
   }
 }
 
-void nr_generate_dci(nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
-                     uint32_t **gold_pdcch_dmrs,
+void nr_generate_dci(PHY_VARS_gNB *gNB,
+                     nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
                      int32_t *txdataF,
                      int16_t amp,
-                     NR_DL_FRAME_PARMS *frame_parms) {
+                     NR_DL_FRAME_PARMS *frame_parms,
+                     int slot) {
 
   int16_t mod_dmrs[NR_MAX_CSET_DURATION][NR_MAX_PDCCH_DMRS_LENGTH>>1] __attribute__((aligned(16))); // 3 for the max coreset duration
   uint16_t cset_start_sc;
@@ -81,7 +82,7 @@ void nr_generate_dci(nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
     
   int rb_offset;
   int n_rb;
-  
+
   // compute rb_offset and n_prb based on frequency allocation
   nr_cce_t cce_list[MAX_DCI_CORESET][NR_MAX_PDCCH_AGG_LEVEL];
   nr_fill_cce_list(cce_list,0,pdcch_pdu_rel15);
@@ -95,6 +96,13 @@ void nr_generate_dci(nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
      * in time: by its first slot and its first symbol*/
     const nfapi_nr_dl_dci_pdu_t *dci_pdu = &pdcch_pdu_rel15->dci_pdu[d];
 
+    if(dci_pdu->ScramblingId != gNB->pdcch_gold_init) {
+      gNB->pdcch_gold_init = dci_pdu->ScramblingId;
+      nr_init_pdcch_dmrs(gNB, dci_pdu->ScramblingId);
+    }
+
+    uint32_t **gold_pdcch_dmrs = gNB->nr_gold_pdcch_dmrs[slot];
+
     cset_start_symb = pdcch_pdu_rel15->StartSymbolIndex;
     cset_nsymb = pdcch_pdu_rel15->DurationSymbols;
     dci_idx = 0;
@@ -104,8 +112,8 @@ void nr_generate_dci(nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
     uint32_t dmrs_length = n_rb*6; //2(QPSK)*3(per RB)*6(REG per CCE)
     uint32_t encoded_length = dci_pdu->AggregationLevel*108; //2(QPSK)*9(per RB)*6(REG per CCE)
     LOG_D(PHY, "DL_DCI : rb_offset %d, nb_rb %d, DMRS length per symbol %d\t DCI encoded length %d (precoder_granularity %d,reg_mapping %d),Scrambling_Id %d,ScramblingRNTI %x,PayloadSizeBits %d\n",
-    rb_offset, n_rb,dmrs_length, encoded_length,pdcch_pdu_rel15->precoderGranularity,pdcch_pdu_rel15->CceRegMappingType,
-    dci_pdu->ScramblingId,dci_pdu->ScramblingRNTI,dci_pdu->PayloadSizeBits);
+          rb_offset, n_rb,dmrs_length, encoded_length,pdcch_pdu_rel15->precoderGranularity,pdcch_pdu_rel15->CceRegMappingType,
+          dci_pdu->ScramblingId,dci_pdu->ScramblingRNTI,dci_pdu->PayloadSizeBits);
     dmrs_length += rb_offset*6; // To accommodate more DMRS symbols in case of rb offset
       
     /// DMRS QPSK modulation
@@ -115,10 +123,10 @@ void nr_generate_dci(nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
       
 #ifdef DEBUG_PDCCH_DMRS
        if(dci_pdu->RNTI!=0xFFFF) {      
-      for (int i=0; i<dmrs_length>>1; i++)
-	printf("symb %d i %d %p gold seq 0x%08x mod_dmrs %d %d\n", symb, i,
-	       &gold_pdcch_dmrs[symb][i>>5],gold_pdcch_dmrs[symb][i>>5], mod_dmrs[symb][i<<1], mod_dmrs[symb][(i<<1)+1] );
-    }  
+         for (int i=0; i<dmrs_length>>1; i++)
+	   printf("symb %d i %d %p gold seq 0x%08x mod_dmrs %d %d\n", symb, i,
+	          &gold_pdcch_dmrs[symb][i>>5],gold_pdcch_dmrs[symb][i>>5], mod_dmrs[symb][i<<1], mod_dmrs[symb][(i<<1)+1] );
+       }
 #endif
     }
     
@@ -248,15 +256,16 @@ void nr_generate_dci(nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
 }
 
 void nr_generate_dci_top(processingData_L1tx_t *msgTx,
-                         uint32_t **gold_pdcch_dmrs,
+                         int slot,
                          int32_t *txdataF,
                          int16_t amp,
                          NR_DL_FRAME_PARMS *frame_parms) {
 
+
   for (int i=0; i<msgTx->num_ul_pdcch; i++)
-    nr_generate_dci(&msgTx->ul_pdcch_pdu[i].pdcch_pdu.pdcch_pdu_rel15,gold_pdcch_dmrs,txdataF,amp,frame_parms);
+    nr_generate_dci(msgTx->gNB,&msgTx->ul_pdcch_pdu[i].pdcch_pdu.pdcch_pdu_rel15,txdataF,amp,frame_parms,slot);
   for (int i=0; i<msgTx->num_dl_pdcch; i++)
-    nr_generate_dci(&msgTx->pdcch_pdu[i].pdcch_pdu_rel15,gold_pdcch_dmrs,txdataF,amp,frame_parms);
+    nr_generate_dci(msgTx->gNB,&msgTx->pdcch_pdu[i].pdcch_pdu_rel15,txdataF,amp,frame_parms,slot);
 
 }
 

openair1/PHY/NR_TRANSPORT/nr_dci.h

@@ -30,7 +30,7 @@ uint16_t nr_get_dci_size(nfapi_nr_dci_format_e format,
                          uint16_t N_RB);
 
 void nr_generate_dci_top(processingData_L1tx_t *msgTx,
-                         uint32_t **gold_pdcch_dmrs,
+                         int slot,
                          int32_t *txdataF,
                          int16_t amp,
                          NR_DL_FRAME_PARMS *frame_parms);

openair1/PHY/NR_TRANSPORT/nr_dlsch.c

@@ -58,7 +58,6 @@ void nr_generate_pdsch(processingData_L1tx_t *msgTx,
 
   PHY_VARS_gNB *gNB = msgTx->gNB;
   NR_gNB_DLSCH_t *dlsch;
-  uint32_t ***pdsch_dmrs = gNB->nr_gold_pdsch_dmrs[slot];
   int32_t** txdataF = gNB->common_vars.txdataF;
   int16_t amp = AMP;
   int xOverhead = 0;
@@ -93,6 +92,12 @@ void nr_generate_pdsch(processingData_L1tx_t *msgTx,
     }
     n_dmrs = (rel15->BWPStart+rel15->rbStart+rel15->rbSize)*nb_re_dmrs;
 
+    if(rel15->dlDmrsScramblingId != gNB->pdsch_gold_init[rel15->SCID])  {
+      gNB->pdsch_gold_init[rel15->SCID] = rel15->dlDmrsScramblingId;
+      nr_init_pdsch_dmrs(gNB, rel15->SCID, rel15->dlDmrsScramblingId);
+    }
+
+    uint32_t ***pdsch_dmrs = gNB->nr_gold_pdsch_dmrs[slot];
     uint16_t dmrs_symbol_map = rel15->dlDmrsSymbPos;//single DMRS: 010000100 Double DMRS 110001100
     uint8_t dmrs_len = get_num_dmrs(rel15->dlDmrsSymbPos);
     uint16_t nb_re = ((12*rel15->NrOfSymbols)-nb_re_dmrs*dmrs_len-xOverhead)*rel15->rbSize*rel15->nrOfLayers;
@@ -275,7 +280,7 @@ void nr_generate_pdsch(processingData_L1tx_t *msgTx,
             l_prime = 0;
           }
           /// DMRS QPSK modulation
-          nr_modulation(pdsch_dmrs[l][0], n_dmrs*2, DMRS_MOD_ORDER, mod_dmrs); // currently only codeword 0 is modulated. Qm = 2 as DMRS is QPSK modulated
+          nr_modulation(pdsch_dmrs[l][rel15->SCID], n_dmrs*2, DMRS_MOD_ORDER, mod_dmrs); // Qm = 2 as DMRS is QPSK modulated
 
 #ifdef DEBUG_DLSCH
           printf("DMRS modulation (symbol %d, %d symbols, type %d):\n", l, n_dmrs, dmrs_Type);
@@ -296,7 +301,7 @@ void nr_generate_pdsch(processingData_L1tx_t *msgTx,
           if(ptrs_symbol) {
             /* PTRS QPSK Modulation for each OFDM symbol in a slot */
             LOG_D(PHY,"Doing ptrs modulation for symbol %d, n_ptrs %d\n",l,n_ptrs);
-            nr_modulation(pdsch_dmrs[l][0], (n_ptrs<<1), DMRS_MOD_ORDER, mod_ptrs);
+            nr_modulation(pdsch_dmrs[l][rel15->SCID], (n_ptrs<<1), DMRS_MOD_ORDER, mod_ptrs);
           }
         }
         uint16_t k = start_sc;

openair1/PHY/NR_TRANSPORT/nr_transport_proto.h

@@ -338,7 +338,6 @@ uint8_t get_nr_prach_duration(uint8_t prach_format);
 void nr_generate_csi_rs(PHY_VARS_gNB *gNB,
                         int16_t amp,
                         nfapi_nr_dl_tti_csi_rs_pdu_rel15_t csi_params,
-                        uint16_t cell_id,
                         int slot);
 
 void free_nr_prach_entry(PHY_VARS_gNB *gNB, int prach_id);

openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c

@@ -466,6 +466,7 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
                                 uint8_t gNB_id,
                                 unsigned char Ns,
                                 unsigned char symbol,
+                                unsigned short scrambling_id,
                                 unsigned short coreset_start_subcarrier,
                                 unsigned short nb_rb_coreset)
 {
@@ -493,13 +494,11 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
   fm = filt16a_m1;
   fr = filt16a_r1;
 
-
   // checking if re-initialization of scrambling IDs is needed (should be done here but scrambling ID for PDCCH is not taken from RRC)
-/*  if (( != ue->scramblingID_pdcch){
-    ue->scramblingID_pdcch=;
-    nr_gold_pdsch(ue,ue->scramblingID_pdcch);
-  }*/
-
+  if (scrambling_id != ue->scramblingID_pdcch){
+    ue->scramblingID_pdcch = scrambling_id;
+    nr_gold_pdcch(ue,ue->scramblingID_pdcch);
+  }
 
   // generate pilot
   int pilot[nb_rb_coreset * 3] __attribute__((aligned(16))); 
@@ -666,6 +665,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
                                 unsigned char Ns,
                                 unsigned short p,
                                 unsigned char symbol,
+                                unsigned char nscid,
+                                unsigned short scrambling_id,
                                 unsigned short BWPStart,
                                 uint8_t config_type,
                                 unsigned short bwp_start_subcarrier,
@@ -703,11 +704,10 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
   int8_t delta = get_delta(p, config_type);
 
   // checking if re-initialization of scrambling IDs is needed
-  /*if ((XXX.scramblingID0 != ue->scramblingID[0]) || (XXX.scramblingID1 != ue->scramblingID[1])){
-    ue->scramblingID[0] = XXX.scramblingID0;
-    ue->scramblingID[1] = XXX.scramblingID1;
-    nr_gold_pdsch(ue,ue->scramblingID);
-  }*/
+  if (scrambling_id != ue->scramblingID_dlsch[nscid]){
+    ue->scramblingID_dlsch[nscid] = scrambling_id;
+    nr_gold_pdsch(ue, nscid, scrambling_id);
+  }
 
   nr_pdsch_dmrs_rx(ue, Ns, ue->nr_gold_pdsch[gNB_id][Ns][symbol][0], &pilot[0], 1000+p, 0, nb_rb_pdsch+rb_offset, config_type);
 

openair1/PHY/NR_UE_ESTIMATION/nr_estimation.h

@@ -44,6 +44,7 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
                                 uint8_t gNB_id,
                                 unsigned char Ns,
                                 unsigned char symbol,
+                                unsigned short scrambling_id,
                                 unsigned short coreset_start_subcarrier,
                                 unsigned short nb_rb_coreset);
 
@@ -74,6 +75,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
                                 unsigned char Ns,
                                 unsigned short p,
                                 unsigned char symbol,
+                                unsigned char nscid,
+                                unsigned short scrambling_id,
                                 unsigned short BWPStart,
                                 uint8_t config_type,
                                 unsigned short bwp_start_subcarrier,

openair1/PHY/NR_UE_TRANSPORT/nr_initial_sync.c

@@ -352,15 +352,17 @@ int nr_initial_sync(UE_nr_rxtx_proc_t *proc,
         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);
+        for (int i=0; i<NR_NB_NSCID; i++) {
+          ue->scramblingID_dlsch[i]=fp->Nid_cell;
+          nr_gold_pdsch(ue, i, ue->scramblingID_dlsch[i]);
+        }
 
         // initialize the pusch dmrs
-        uint16_t N_n_scid[2] = {fp->Nid_cell,fp->Nid_cell};
-        int n_scid = 0; // This quantity is indicated by higher layer parameter dmrs-SeqInitialization
-        nr_init_pusch_dmrs(ue, N_n_scid, n_scid);
+        for (int i=0; i<NR_NB_NSCID; i++) {
+          ue->scramblingID_ulsch[i]=fp->Nid_cell;
+          nr_init_pusch_dmrs(ue, ue->scramblingID_ulsch[i], i);
+        }
+
 
         // 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){
@@ -551,6 +553,7 @@ int nr_initial_sync(UE_nr_rxtx_proc_t *proc,
                                       0,
                                       pdcch_vars->slot,
                                       l,
+                                      fp->Nid_cell,
                                       fp->first_carrier_offset+(pdcch_vars->pdcch_config[n_ss].BWPStart + coreset_start_rb)*12,
                                       coreset_nb_rb);
 

openair1/PHY/NR_UE_TRANSPORT/nr_transport_ue.h

@@ -259,6 +259,8 @@ typedef struct {
   uint16_t ptrs_symbols;
   // PTRS symbol index, to be updated every PTRS symbol within a slot.
   uint8_t ptrs_symbol_index;
+  uint8_t nscid;
+  uint16_t dlDmrsScramblingId;
   /// PDU BITMAP 
   uint16_t pduBitmap;
 } NR_DL_UE_HARQ_t;

openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c

@@ -32,6 +32,7 @@
 #include <stdint.h>
 #include "PHY/NR_REFSIG/dmrs_nr.h"
 #include "PHY/NR_REFSIG/ptrs_nr.h"
+#include "PHY/NR_REFSIG/refsig_defs_ue.h"
 #include "PHY/NR_UE_TRANSPORT/nr_transport_ue.h"
 #include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h"
 #include "PHY/MODULATION/nr_modulation.h"
@@ -215,9 +216,16 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
 
   /////////////////////////DMRS Modulation/////////////////////////
   ///////////
-  uint32_t **pusch_dmrs = UE->nr_gold_pusch_dmrs[slot];
+
+  if(pusch_pdu->ul_dmrs_scrambling_id != UE->scramblingID_ulsch[pusch_pdu->scid])  {
+    UE->scramblingID_ulsch[pusch_pdu->scid] = pusch_pdu->ul_dmrs_scrambling_id;
+    nr_init_pusch_dmrs(UE, pusch_pdu->scid, pusch_pdu->ul_dmrs_scrambling_id);
+  }
+
+  uint32_t ***pusch_dmrs = UE->nr_gold_pusch_dmrs[slot];
   uint16_t n_dmrs = (pusch_pdu->bwp_start + start_rb + nb_rb)*((dmrs_type == pusch_dmrs_type1) ? 6:4);
   int16_t mod_dmrs[n_dmrs<<1] __attribute((aligned(16)));
+
   ///////////
   ////////////////////////////////////////////////////////////////////////
 
@@ -382,7 +390,7 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
           // TODO: performance improvement, we can skip the modulation of DMRS symbols outside the bandwidth part
           // Perform this on gold sequence, not required when SC FDMA operation is done,
           LOG_D(PHY,"DMRS in symbol %d\n",l);
-          nr_modulation(pusch_dmrs[l], n_dmrs*2, DMRS_MOD_ORDER, mod_dmrs); // Qm = 2 as DMRS is QPSK modulated
+          nr_modulation(pusch_dmrs[l][pusch_pdu->scid], n_dmrs*2, DMRS_MOD_ORDER, mod_dmrs); // currently only codeword 0 is modulated. Qm = 2 as DMRS is QPSK modulated
         } else {
           dmrs_idx = 0;
         }
@@ -392,7 +400,7 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
 
         if(is_ptrs_symbol(l, ulsch_ue->ptrs_symbols)) {
           is_ptrs_sym = 1;
-          nr_modulation(pusch_dmrs[l], nb_rb, DMRS_MOD_ORDER, mod_ptrs);
+          nr_modulation(pusch_dmrs[l][pusch_pdu->scid], nb_rb, DMRS_MOD_ORDER, mod_ptrs);
         }
       }
 

openair1/PHY/defs_gNB.h

@@ -850,9 +850,15 @@ typedef struct PHY_VARS_gNB_s {
   /// counter to average prach energh over first 100 prach opportunities
   int prach_energy_counter;
 
+  int csi_gold_init;
+  int pdcch_gold_init;
+  int pdsch_gold_init[2];
+  int pusch_gold_init[2];
+
   int ap_N1;
   int ap_N2;
   int ap_XP;
+
   int pucch0_thres;
   int pusch_thres;
   int prach_thres;

openair1/PHY/defs_nr_UE.h

@@ -789,7 +789,10 @@ typedef struct {
   uint32_t ****nr_gold_pdsch[NUMBER_OF_CONNECTED_eNB_MAX];
 
   // Scrambling IDs used in PDSCH DMRS
-  uint16_t scramblingID[2];
+  uint16_t scramblingID_dlsch[2];
+
+  // Scrambling IDs used in PUSCH DMRS
+  uint16_t scramblingID_ulsch[2];
 
   /// PDCCH DMRS
   uint32_t ***nr_gold_pdcch[NUMBER_OF_CONNECTED_eNB_MAX];
@@ -798,7 +801,7 @@ typedef struct {
   uint16_t scramblingID_pdcch;
 
   /// PUSCH DMRS sequence
-  uint32_t ***nr_gold_pusch_dmrs;
+  uint32_t ****nr_gold_pusch_dmrs;
 
   uint32_t X_u[64][839];
 

openair1/PHY/defs_nr_common.h

@@ -94,6 +94,8 @@
 #define NR_RX_NB_TH 1
 #define NR_NB_TH_SLOT 2
 
+#define NR_NB_NSCID 2
+
 extern const uint8_t nr_rv_round_map[4]; 
 
 static inline

openair1/SCHED_NR/phy_procedures_nr_gNB.c

@@ -158,8 +158,7 @@ void phy_procedures_gNB_TX(processingData_L1tx_t *msgTx,
   
     VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_gNB_PDCCH_TX,1);
 
-    nr_generate_dci_top(msgTx,
-			gNB->nr_gold_pdcch_dmrs[slot],
+    nr_generate_dci_top(msgTx, slot,
 			&gNB->common_vars.txdataF[0][txdataF_offset],
 			AMP, fp);
 
@@ -178,7 +177,7 @@ void phy_procedures_gNB_TX(processingData_L1tx_t *msgTx,
     if (csirs->active == 1) {
       LOG_D(PHY, "CSI-RS generation started in frame %d.%d\n",frame,slot);
       nfapi_nr_dl_tti_csi_rs_pdu_rel15_t csi_params = csirs->csirs_pdu.csi_rs_pdu_rel15;
-      nr_generate_csi_rs(gNB, AMP, csi_params, gNB->gNB_config.cell_config.phy_cell_id.value, slot);
+      nr_generate_csi_rs(gNB, AMP, csi_params, slot);
       csirs->active = 0;
     }
   }

openair1/SCHED_NR_UE/fapi_nr_ue_l1.c

@@ -315,6 +315,8 @@ void configure_dlsch(NR_UE_DLSCH_t *dlsch0,
   dlsch0_harq->mcs = dlsch_config_pdu->mcs;
   dlsch0_harq->rvidx = dlsch_config_pdu->rv;
   dlsch0->g_pucch = dlsch_config_pdu->accumulated_delta_PUCCH;
+  dlsch0_harq->nscid = dlsch_config_pdu->nscid;
+  dlsch0_harq->dlDmrsScramblingId = dlsch_config_pdu->dlDmrsScramblingId;
   //get nrOfLayers from DCI info
   uint8_t Nl = 0;
   for (int i = 0; i < 12; i++) { // max 12 ports

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

@@ -580,6 +580,8 @@ int nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, int gNB_
                                       nr_slot_rx,
                                       get_dmrs_port(aatx,dlsch0_harq->dmrs_ports),
                                       m,
+                                      dlsch0_harq->nscid,
+                                      dlsch0_harq->dlDmrsScramblingId,
                                       BWPStart,
                                       dlsch0_harq->dmrsConfigType,
                                       ue->frame_parms.first_carrier_offset+(BWPStart + pdsch_start_rb)*12,
@@ -1482,6 +1484,7 @@ int phy_procedures_nrUE_RX(PHY_VARS_NR_UE *ue,
                                     gNB_id,
                                     nr_slot_rx,
                                     l,
+                                    pdcch_vars->pdcch_config[n_ss].coreset.pdcch_dmrs_scrambling_id,
                                     fp->first_carrier_offset+(pdcch_vars->pdcch_config[n_ss].BWPStart + coreset_start_rb)*12,
                                     coreset_nb_rb);
 

openair1/SIMULATION/NR_PHY/dlsim.c

@@ -961,10 +961,10 @@ int main(int argc, char **argv)
   nr_gold_pdcch(UE, frame_parms->Nid_cell);
 
   // compute the scrambling IDs for PDSCH DMRS
-  for (int i = 0; i < 2; i++)
-    UE->scramblingID[i] = frame_parms->Nid_cell;
-
-  nr_gold_pdsch(UE, UE->scramblingID);
+  for (int i = 0; i < 2; i++) {
+    UE->scramblingID_dlsch[i] = frame_parms->Nid_cell;
+    nr_gold_pdsch(UE, i, UE->scramblingID_dlsch[i]);
+  }
 
   nr_l2_init_ue(NULL);
   UE_mac = get_mac_inst(0);

openair1/SIMULATION/NR_PHY/ulsim.c

@@ -782,10 +782,10 @@ int main(int argc, char **argv)
 
   init_nr_ue_transport(UE);
 
-  // initialize the pusch dmrs
-  uint16_t N_n_scid[2] = {frame_parms->Nid_cell,frame_parms->Nid_cell};
-  int n_scid = 0; // This quantity is indicated by higher layer parameter dmrs-SeqInitialization
-  nr_init_pusch_dmrs(UE, N_n_scid, n_scid);
+  for(int n_scid = 0; n_scid<2; n_scid++) {
+    UE->scramblingID_ulsch[n_scid] = frame_parms->Nid_cell;
+    nr_init_pusch_dmrs(UE, frame_parms->Nid_cell, n_scid);
+  }
 
   //Configure UE
   NR_UE_RRC_INST_t rrcue;

openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c

@@ -281,7 +281,6 @@ int get_rnti_type(NR_UE_MAC_INST_t *mac, uint16_t rnti){
     LOG_D(MAC, "In %s: returning rnti_type %s \n", __FUNCTION__, rnti_types[rnti_type]);
 
     return rnti_type;
-
 }
 
 
@@ -874,14 +873,26 @@ int8_t nr_ue_process_dci(module_id_t module_id, int cc_id, uint8_t gNB_index, fr
     if(pdsch_TimeDomainAllocationList && rnti!=SI_RNTI)
       mappingtype = pdsch_TimeDomainAllocationList->list.array[dci->time_domain_assignment.val]->mappingType;
 
+    struct NR_DMRS_DownlinkConfig *dl_dmrs_config = NULL;
+    if(mac->DLbwp[0])
+      dl_dmrs_config = (mappingtype == typeA) ?
+                       mac->DLbwp[0]->bwp_Dedicated->pdsch_Config->choice.setup->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup :
+                       mac->DLbwp[0]->bwp_Dedicated->pdsch_Config->choice.setup->dmrs_DownlinkForPDSCH_MappingTypeB->choice.setup;
+
+    dlsch_config_pdu_1_0->nscid = 0;
+    if(dl_dmrs_config && dl_dmrs_config->scramblingID0)
+      dlsch_config_pdu_1_0->dlDmrsScramblingId = *dl_dmrs_config->scramblingID0;
+    else
+      dlsch_config_pdu_1_0->dlDmrsScramblingId = mac->physCellId;
+
     /* dmrs symbol positions*/
     dlsch_config_pdu_1_0->dlDmrsSymbPos = fill_dmrs_mask(pdsch_config,
                                                          (get_softmodem_params()->nsa) ? mac->scc->dmrs_TypeA_Position : mac->mib->dmrs_TypeA_Position,
                                                          dlsch_config_pdu_1_0->number_symbols,
                                                          dlsch_config_pdu_1_0->start_symbol,
                                                          mappingtype, 1);
-    dlsch_config_pdu_1_0->dmrsConfigType = (mac->DLbwp[0] != NULL) ?
-                                           (mac->DLbwp[0]->bwp_Dedicated->pdsch_Config->choice.setup->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->dmrs_Type == NULL ? 0 : 1) : 0;
+    dlsch_config_pdu_1_0->dmrsConfigType = (dl_dmrs_config != NULL) ?
+                                           (dl_dmrs_config->dmrs_Type == NULL ? 0 : 1) : 0;
 
     /* number of DM-RS CDM groups without data according to subclause 5.1.6.2 of 3GPP TS 38.214 version 15.9.0 Release 15 */
     if (dlsch_config_pdu_1_0->number_symbols == 2)
@@ -1075,7 +1086,30 @@ int8_t nr_ue_process_dci(module_id_t module_id, int cc_id, uint8_t gNB_index, fr
     if(pdsch_TimeDomainAllocationList)
       mappingtype = pdsch_TimeDomainAllocationList->list.array[dci->time_domain_assignment.val]->mappingType;
 
-    dlsch_config_pdu_1_1->dmrsConfigType = pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->dmrs_Type == NULL ? NFAPI_NR_DMRS_TYPE1 : NFAPI_NR_DMRS_TYPE2;
+    struct NR_DMRS_DownlinkConfig *dl_dmrs_config = (mappingtype == typeA) ?
+                                                    pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup :
+                                                    pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeB->choice.setup;
+
+    switch (dci->dmrs_sequence_initialization.val) {
+      case 0:
+        dlsch_config_pdu_1_1->nscid = 0;
+        if(dl_dmrs_config->scramblingID0)
+          dlsch_config_pdu_1_1->dlDmrsScramblingId = *dl_dmrs_config->scramblingID0;
+        else
+          dlsch_config_pdu_1_1->dlDmrsScramblingId = mac->physCellId;
+        break;
+      case 1:
+        dlsch_config_pdu_1_1->nscid = 1;
+        if(dl_dmrs_config->scramblingID1)
+          dlsch_config_pdu_1_1->dlDmrsScramblingId = *dl_dmrs_config->scramblingID1;
+        else
+          dlsch_config_pdu_1_1->dlDmrsScramblingId = mac->physCellId;
+        break;
+      default:
+        AssertFatal(1==0,"Invalid dmrs sequence initialization value\n");
+    }
+
+    dlsch_config_pdu_1_1->dmrsConfigType = dl_dmrs_config->dmrs_Type == NULL ? NFAPI_NR_DMRS_TYPE1 : NFAPI_NR_DMRS_TYPE2;
 
     /* TODO: fix number of DM-RS CDM groups without data according to subclause 5.1.6.2 of 3GPP TS 38.214,
              using tables 7.3.1.2.2-1, 7.3.1.2.2-2, 7.3.1.2.2-3, 7.3.1.2.2-4 of 3GPP TS 38.212 */
@@ -1136,17 +1170,11 @@ int8_t nr_ue_process_dci(module_id_t module_id, int cc_id, uint8_t gNB_index, fr
 
     /* ANTENNA_PORTS */
     uint8_t n_codewords = 1; // FIXME!!!
-    long *max_length = NULL;
-    long *dmrs_type = NULL;
+    long *max_length = dl_dmrs_config->maxLength;
+    long *dmrs_type = dl_dmrs_config->dmrs_Type;
+
     dlsch_config_pdu_1_1->n_front_load_symb = 1; // default value
-    if (pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA) {
-      max_length = pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->maxLength;
-      dmrs_type = pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->dmrs_Type;
-    }
-    if (pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeB) {
-      max_length = pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeB->choice.setup->maxLength;
-      dmrs_type = pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeB->choice.setup->dmrs_Type;
-    }
+
     if ((dmrs_type == NULL) && (max_length == NULL)){
       // Table 7.3.1.2.2-1: Antenna port(s) (1000 + DMRS port), dmrs-Type=1, maxLength=1
       dlsch_config_pdu_1_1->n_dmrs_cdm_groups = table_7_3_2_3_3_1[dci->antenna_ports.val][0];

openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c

@@ -734,6 +734,11 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac,
                          ? pusch_Config->dmrs_UplinkForPUSCH_MappingTypeA->choice.setup : pusch_Config->dmrs_UplinkForPUSCH_MappingTypeB->choice.setup;
     }
 
+    pusch_config_pdu->scid = 0;
+    pusch_config_pdu->ul_dmrs_scrambling_id = mac->physCellId;
+    if(*dci_format == NR_UL_DCI_FORMAT_0_1)
+      pusch_config_pdu->scid = dci->dmrs_sequence_initialization.val;
+
     /* TRANSFORM PRECODING ------------------------------------------------------------------------------------------*/
 
     if (pusch_config_pdu->transform_precoding == NR_PUSCH_Config__transformPrecoder_enabled) {
@@ -759,6 +764,14 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac,
       LOG_D(NR_MAC,"TRANSFORM PRECODING IS ENABLED. CDM groups: %d, U: %d \n", pusch_config_pdu->num_dmrs_cdm_grps_no_data,
                 pusch_config_pdu->dfts_ofdm.low_papr_group_number);
     }
+    else {
+      if (pusch_config_pdu->scid == 0 &&
+          NR_DMRS_ulconfig->transformPrecodingDisabled->scramblingID0)
+        pusch_config_pdu->ul_dmrs_scrambling_id = *NR_DMRS_ulconfig->transformPrecodingDisabled->scramblingID0;
+      if (pusch_config_pdu->scid == 1 &&
+          NR_DMRS_ulconfig->transformPrecodingDisabled->scramblingID1)
+        pusch_config_pdu->ul_dmrs_scrambling_id = *NR_DMRS_ulconfig->transformPrecodingDisabled->scramblingID1;
+    }
 
     /* TRANSFORM PRECODING --------------------------------------------------------------------------------------------------------*/