Merge branch 'nr_pdsch' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr_pdsch

openair1/PHY/MODULATION/slot_fep_nr.c

@@ -44,7 +44,7 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
   unsigned char symbol = l;//+((7-frame_parms->Ncp)*(Ns&1)); ///symbol within sub-frame
   unsigned int nb_prefix_samples = (no_prefix ? 0 : frame_parms->nb_prefix_samples);
   unsigned int nb_prefix_samples0 = (no_prefix ? 0 : frame_parms->nb_prefix_samples0);
-  unsigned int subframe_offset;//,subframe_offset_F;
+  //unsigned int subframe_offset;//,subframe_offset_F;
   unsigned int slot_offset;
   //int i;
   unsigned int frame_length_samples = frame_parms->samples_per_subframe * 10;
@@ -52,13 +52,8 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
   //NR_UE_PDCCH *pdcch_vars  = ue->pdcch_vars[ue->current_thread_id[Ns>>1]][0];
   uint16_t coreset_start_subcarrier = frame_parms->first_carrier_offset+516;
   uint16_t nb_rb_coreset = 24;
-  uint16_t bwp_start_subcarrier = frame_parms->first_carrier_offset;
-  uint16_t nb_rb_pdsch = 100;
-
-  /*LTE_UE_DLSCH_t **dlsch_ue = phy_vars_ue->dlsch_ue[eNB_id];
-  unsigned char harq_pid = dlsch_ue[0]->current_harq_pid;
-  LTE_DL_UE_HARQ_t *dlsch0_harq = dlsch_ue[0]->harq_processes[harq_pid];
-  int uespec_pilot[9][1200];*/
+  uint16_t bwp_start_subcarrier = frame_parms->first_carrier_offset+516;
+  uint16_t nb_rb_pdsch = 50;
 
   void (*dft)(int16_t *,int16_t *, int);
   int tmp_dft_in[8192] __attribute__ ((aligned (32)));  // This is for misalignment issues for 6 and 15 PRBs
@@ -102,11 +97,9 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
   }
 
   if (no_prefix) {
-    subframe_offset = frame_parms->ofdm_symbol_size * frame_parms->symbols_per_tti * (Ns>>1);
-    slot_offset = frame_parms->ofdm_symbol_size * (frame_parms->symbols_per_tti>>1) * (Ns%2);
+    slot_offset = frame_parms->ofdm_symbol_size * (frame_parms->symbols_per_slot) * (Ns);
   } else {
-    subframe_offset = frame_parms->samples_per_tti * (Ns>>1);
-    slot_offset = (frame_parms->samples_per_tti>>1) * (Ns%2);
+    slot_offset = (frame_parms->samples_per_subframe/frame_parms->slots_per_subframe) * (Ns);
   }
 
   /*if (l<0 || l>=7-frame_parms->Ncp) {
@@ -122,9 +115,9 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
 
 
   for (aa=0; aa<frame_parms->nb_antennas_rx; aa++) {
-    memset(&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],0,frame_parms->ofdm_symbol_size*sizeof(int));
+    memset(&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],0,frame_parms->ofdm_symbol_size*sizeof(int));
 
-    rx_offset = sample_offset + slot_offset + nb_prefix_samples0 + subframe_offset - SOFFSET;
+    rx_offset = sample_offset + slot_offset + nb_prefix_samples0 - SOFFSET;
     // Align with 256 bit
     //    rx_offset = rx_offset&0xfffffff8;
 
@@ -140,14 +133,14 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
                (void *)&common_vars->rxdata[aa][rx_offset % frame_length_samples],
                frame_parms->ofdm_symbol_size*sizeof(int));
         dft((int16_t *)tmp_dft_in,
-            (int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],1);
+            (int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],1);
       } else { // use dft input from RX buffer directly
 #if UE_TIMING_TRACE
           start_meas(&ue->rx_dft_stats);
 #endif
 
         dft((int16_t *)&common_vars->rxdata[aa][(rx_offset) % frame_length_samples],
-            (int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],1);
+            (int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],1);
 #if UE_TIMING_TRACE
         stop_meas(&ue->rx_dft_stats);
 #endif
@@ -158,8 +151,8 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
 
 #ifdef DEBUG_FEP
       //  if (ue->frame <100)
-      LOG_I(PHY,"slot_fep: frame %d: slot %d, symbol %d, nb_prefix_samples %d, nb_prefix_samples0 %d, slot_offset %d, subframe_offset %d, sample_offset %d,rx_offset %d, frame_length_samples %d\n", ue->proc.proc_rxtx[(Ns>>1)&1].frame_rx,Ns, symbol,
-          nb_prefix_samples,nb_prefix_samples0,slot_offset,subframe_offset,sample_offset,rx_offset,frame_length_samples);
+      LOG_I(PHY,"slot_fep: frame %d: slot %d, symbol %d, nb_prefix_samples %d, nb_prefix_samples0 %d, slot_offset %d, sample_offset %d,rx_offset %d, frame_length_samples %d\n", ue->proc.proc_rxtx[(Ns>>1)&1].frame_rx,Ns, symbol,
+          nb_prefix_samples,nb_prefix_samples0,slot_offset,sample_offset,rx_offset,frame_length_samples);
 #endif
 
       if (rx_offset > (frame_length_samples - frame_parms->ofdm_symbol_size))
@@ -175,11 +168,11 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
                (void *)&common_vars->rxdata[aa][(rx_offset) % frame_length_samples],
                frame_parms->ofdm_symbol_size*sizeof(int));
         dft((int16_t *)tmp_dft_in,
-            (int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],1);
+            (int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],1);
       } else { // use dft input from RX buffer directly
 
         dft((int16_t *)&common_vars->rxdata[aa][(rx_offset) % frame_length_samples],
-            (int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],1);
+            (int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],1);
       }
 #if UE_TIMING_TRACE
       stop_meas(&ue->rx_dft_stats);
@@ -190,7 +183,7 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
 
     #ifdef DEBUG_FEP
         //  if (ue->frame <100)
-        printf("slot_fep: frame %d: symbol %d rx_offset %d\n", ue->proc.proc_rxtx[(Ns>>1)&1].frame_rx, symbol,rx_offset);
+        printf("slot_fep: frame %d: symbol %d rx_offset %d\n", ue->proc.proc_rxtx[(Ns)&1].frame_rx, symbol,rx_offset);
     #endif
   }
 

openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c

@@ -48,9 +48,9 @@ int nr_pbch_channel_estimation(PHY_VARS_NR_UE *ue,
 
   //uint16_t Nid_cell = (eNB_offset == 0) ? ue->frame_parms.Nid_cell : ue->measurements.adj_cell_id[eNB_offset-1];
 
-  uint8_t nushift,ssb_index=0, n_hf=0;
-  int **dl_ch_estimates  =ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].dl_ch_estimates[eNB_offset];
-  int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].rxdataF;
+  uint8_t nushift, ssb_index=0, n_hf=0;
+  int **dl_ch_estimates  =ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].dl_ch_estimates[eNB_offset];
+  int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF;
 
   nushift =  ue->frame_parms.Nid_cell%4;
   ue->frame_parms.nushift = nushift;
@@ -271,8 +271,8 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
   //uint16_t Nid_cell = (eNB_offset == 0) ? ue->frame_parms.Nid_cell : ue->measurements.adj_cell_id[eNB_offset-1];
 
   uint8_t nushift;
-  int **dl_ch_estimates  =ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].dl_ch_estimates[eNB_offset];
-  int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].rxdataF;
+  int **dl_ch_estimates  =ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].dl_ch_estimates[eNB_offset];
+  int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF;
 
   nushift = 1;
   ue->frame_parms.nushift = nushift;
@@ -448,8 +448,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
   //uint16_t Nid_cell = (eNB_offset == 0) ? ue->frame_parms.Nid_cell : ue->measurements.adj_cell_id[eNB_offset-1];
 
   uint8_t nushift;
-  int **dl_ch_estimates  =ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].dl_ch_estimates[eNB_offset];
-  int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].rxdataF;
+  int **dl_ch_estimates  =ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].dl_ch_estimates[eNB_offset];
+  int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF;
 
   nushift = (p>>1)&1;
   ue->frame_parms.nushift = nushift;

openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_decoding.c

@@ -167,6 +167,29 @@ NR_UE_DLSCH_t *new_nr_ue_dlsch(uint8_t Kmimo,uint8_t Mdlharq,uint32_t Nsoft,uint
   return(NULL);
 }
 
+void nr_dlsch_unscrambling(int16_t* llr,
+                         uint8_t size,
+                         uint8_t q,
+                         uint32_t Nid,
+                         uint32_t n_RNTI) {
+
+  uint8_t reset;
+  uint32_t x1, x2, s=0;
+
+  reset = 1;
+  x2 = (n_RNTI<<15) + (q<<14) + Nid;
+
+  for (int i=0; i<size; i++) {
+    if ((i&0x1f)==0) {
+      s = lte_gold_generic(&x1, &x2, reset);
+      reset = 0;
+    }
+    if (((s>>(i&0x1f))&1)==1)
+        llr[i] = -llr[i];
+  }
+
+}
+
 uint32_t  nr_dlsch_decoding(PHY_VARS_NR_UE *phy_vars_ue,
                          short *dlsch_llr,
                          NR_DL_FRAME_PARMS *frame_parms,

openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h

@@ -1005,6 +1005,12 @@ uint32_t  nr_dlsch_decoding(PHY_VARS_NR_UE *phy_vars_ue,
                          uint8_t is_crnti,
                          uint8_t llr8_flag);
 
+void nr_dlsch_unscrambling(int16_t* llr,
+                         uint8_t size,
+                         uint8_t q,
+                         uint32_t Nid,
+                         uint32_t n_RNTI);
+
 
 uint32_t dlsch_decoding_emul(PHY_VARS_NR_UE *phy_vars_ue,
                              uint8_t subframe,

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

@@ -4251,6 +4251,9 @@ void nr_ue_dlsch_procedures(PHY_VARS_NR_UE *ue,
   NR_UE_PDSCH *pdsch_vars;
   uint8_t is_cw0_active = 0;
   uint8_t is_cw1_active = 0;
+  uint8_t nb_re_dmrs = 6;
+  uint16_t length_dmrs = 1;
+  uint16_t nb_symb_sch = 4;
 
   if (dlsch0==NULL)
       AssertFatal(0,"dlsch0 should be defined at this level \n");
@@ -4315,25 +4318,22 @@ void nr_ue_dlsch_procedures(PHY_VARS_NR_UE *ue,
     if (abstraction_flag == 0) {
 
       // start ldpc decode for CW 0
-      dlsch0->harq_processes[harq_pid]->G = get_G(&ue->frame_parms,
-						  dlsch0->harq_processes[harq_pid]->nb_rb,
-						  dlsch0->harq_processes[harq_pid]->rb_alloc_even,
+      dlsch0->harq_processes[harq_pid]->G = nr_get_G(dlsch0->harq_processes[harq_pid]->nb_rb,
+    		  	  	  	  	  	  	  	  	  	  nb_symb_sch,
+												  nb_re_dmrs,
+												  length_dmrs,
 												  dlsch0->harq_processes[harq_pid]->Qm,
-						  dlsch0->harq_processes[harq_pid]->Nl,
-						  ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][eNB_id]->num_pdcch_symbols,
-						  frame_rx,
-						  nr_tti_rx,
-						  ue->transmission_mode[eNB_id]<7?0:ue->transmission_mode[eNB_id]);
+												  dlsch0->harq_processes[harq_pid]->Nl);
 #if UE_TIMING_TRACE
       start_meas(&ue->dlsch_unscrambling_stats);
 #endif
-      /*dlsch_unscrambling(&ue->frame_parms,
-			 0,
-			 dlsch0,
+      nr_dlsch_unscrambling(pdsch_vars->llr[0],
     		  	  	  	  	dlsch0->harq_processes[harq_pid]->G,
-			 pdsch_vars->llr[0],
                             0,
-			 nr_tti_rx<<1);*/
+							ue->frame_parms.Nid_cell,
+							dlsch0->rnti);
+
+
 #if UE_TIMING_TRACE
       stop_meas(&ue->dlsch_unscrambling_stats);
 #endif
@@ -4371,6 +4371,7 @@ void nr_ue_dlsch_procedures(PHY_VARS_NR_UE *ue,
 			   dlsch0,
 			   dlsch0->harq_processes[harq_pid],
 			   frame_rx,
+			   nb_symb_sch,
 			   nr_tti_rx,
 			   harq_pid,
 			   pdsch==PDSCH?1:0,//proc->decoder_switch,
@@ -4396,25 +4397,20 @@ void nr_ue_dlsch_procedures(PHY_VARS_NR_UE *ue,
       if(is_cw1_active)
       {
           // start ldpc decode for CW 1
-          dlsch1->harq_processes[harq_pid]->G = get_G(&ue->frame_parms,
-                  dlsch1->harq_processes[harq_pid]->nb_rb,
-                  dlsch1->harq_processes[harq_pid]->rb_alloc_even,
+          dlsch1->harq_processes[harq_pid]->G = nr_get_G(dlsch1->harq_processes[harq_pid]->nb_rb,
+              		  	  	  	  	  	  	  	  	  	  nb_symb_sch,
+          												  nb_re_dmrs,
+          												  length_dmrs,
           												  dlsch1->harq_processes[harq_pid]->Qm,
-                  dlsch1->harq_processes[harq_pid]->Nl,
-                  ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][eNB_id]->num_pdcch_symbols,
-                  frame_rx,
-                  nr_tti_rx,
-                  ue->transmission_mode[eNB_id]<7?0:ue->transmission_mode[eNB_id]);
+          												  dlsch1->harq_processes[harq_pid]->Nl);
 #if UE_TIMING_TRACE
           start_meas(&ue->dlsch_unscrambling_stats);
 #endif
-          /*dlsch_unscrambling(&ue->frame_parms,
-                  0,
-                  dlsch1,
+          nr_dlsch_unscrambling(pdsch_vars->llr[1],
               		  	  	  	  	dlsch1->harq_processes[harq_pid]->G,
-                  pdsch_vars->llr[1],
-                  1,
-                  nr_tti_rx<<1);*/
+                                    0,
+          							ue->frame_parms.Nid_cell,
+          							dlsch1->rnti);
 #if UE_TIMING_TRACE
           stop_meas(&ue->dlsch_unscrambling_stats);
 #endif
@@ -4452,6 +4448,7 @@ void nr_ue_dlsch_procedures(PHY_VARS_NR_UE *ue,
                   dlsch1,
                   dlsch1->harq_processes[harq_pid],
                   frame_rx,
+		  nb_symb_sch,
                   nr_tti_rx,
                   harq_pid,
                   pdsch==PDSCH?1:0,//proc->decoder_switch,
@@ -5634,16 +5631,26 @@ int phy_procedures_nrUE_RX(PHY_VARS_NR_UE *ue,UE_nr_rxtx_proc_t *proc,uint8_t eN
 //#if 0
   LOG_D(PHY," ------ --> PDSCH ChannelComp/LLR slot 0: AbsSubframe %d.%d ------  \n", frame_rx%1024, nr_tti_rx);
   //to update from pdsch config
-  nr_gold_pdsch(ue,0,0, 1);
+  nr_gold_pdsch(ue,2,0, 1);
+
+  int nb_prefix_samples0 = ue->frame_parms.nb_prefix_samples0;
+  ue->frame_parms.nb_prefix_samples0 = ue->frame_parms.nb_prefix_samples;
 
   nr_slot_fep(ue,
           2,  //to be updated from higher layer
-          (nr_tti_rx<<1),
+          nr_tti_rx,
           0,
           0,
           0,
  		  NR_PDSCH_EST);
 
+  //put back nb_prefix_samples0
+  ue->frame_parms.nb_prefix_samples0 = nb_prefix_samples0;
+
+  //set active for testing, to be removed
+  if (nr_tti_rx==1)
+	  ue->dlsch[ue->current_thread_id[nr_tti_rx]][eNB_id][0]->active = 1;
+
 #if UE_TIMING_TRACE
   start_meas(&ue->generic_stat);
 #endif

openair1/SIMULATION/NR_PHY/dlschsim.c

@@ -526,6 +526,8 @@ int main(int argc, char **argv)
   }
 
   for (SNR=snr0;SNR<snr1;SNR+=snr_step)
+    {
+	  for (trial=0; trial < n_trials; trial++)
 	    {
 
  	for (i = 0; i < available_bits; i++) {
@@ -567,6 +569,7 @@ int main(int argc, char **argv)
 
  	}
 
+ 	//if (errors_bit_uncoded>10)
  	printf("errors bits uncoded %f\n", errors_bit_uncoded);
 
 
@@ -597,8 +600,9 @@ int main(int argc, char **argv)
              //printf("estimated bits error occurs @%d ",i);
            }
          }
-
-       printf("\n errors_bit %d \n", errors_bit);
+//if (errors_bit>10)
+       printf("\n errors_bit %d (trial %d)\n", errors_bit,trial);
+	    }
 
     printf("SNR %f, BER %f \n",SNR,(float)errors_bit/(float)n_trials/(float)TBS);
     }