diff --git a/openair1/SIMULATION/NR_PHY/dlsim.c b/openair1/SIMULATION/NR_PHY/dlsim.c
index 22642da294..abe55c84e7 100644
--- a/openair1/SIMULATION/NR_PHY/dlsim.c
+++ b/openair1/SIMULATION/NR_PHY/dlsim.c
@@ -114,6 +114,12 @@ int main(int argc, char **argv)
   //double pbch_sinr;
   //int pbch_tx_ant;
   int N_RB_DL=106,mu=1;
+  nfapi_nr_dl_config_dlsch_pdu_rel15_t dlsch_config;
+  dlsch_config.start_prb = 0;
+  dlsch_config.n_prb = 50;
+  dlsch_config.start_symbol = 2;
+  dlsch_config.nb_symbols = 9;
+  dlsch_config.mcs_idx = 9;
 
   uint16_t ssb_periodicity = 10;
 
@@ -148,7 +154,7 @@ int main(int argc, char **argv)
 
   randominit(0);
 
-  while ((c = getopt (argc, argv, "f:hA:pf:g:i:j:n:s:S:t:x:y:z:M:N:F:GR:dP:IL:o:")) != -1) {
+  while ((c = getopt (argc, argv, "f:hA:pf:g:i:j:n:s:S:t:x:y:z:M:N:F:GR:dP:IL:o:a:b:c:j:e:")) != -1) {
     switch (c) {
     /*case 'f':
       write_output_file=1;
@@ -317,6 +323,26 @@ int main(int argc, char **argv)
       cset_offset = atoi(optarg);
       break;
 
+    case 'a':
+      dlsch_config.start_prb = atoi(optarg);
+      break;
+
+    case 'b':
+      dlsch_config.n_prb = atoi(optarg);
+      break;
+
+    case 'c':
+      dlsch_config.start_symbol = atoi(optarg);
+      break;
+
+    case 'j':
+      dlsch_config.nb_symbols = atoi(optarg);
+      break;
+
+    case 'e':
+      dlsch_config.mcs_idx = atoi(optarg);
+      break;
+
     default:
     case 'h':
       printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n",
@@ -506,7 +532,7 @@ int main(int argc, char **argv)
     gNB->pbch_configured = 1;
     for (int i=0;i<4;i++) gNB->pbch_pdu[i]=i+1;
 
-    nr_schedule_uss_dlsch_phytest(0,frame,slot);
+    nr_schedule_uss_dlsch_phytest(0,frame,slot,&dlsch_config);
     Sched_INFO.module_id = 0;
     Sched_INFO.CC_id     = 0;
     Sched_INFO.frame     = frame;
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
index 02c27930d3..2f681d7035 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
@@ -300,6 +300,7 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
   rnti_t            rnti;
 
   NR_COMMON_channels_t *cc      = RC.nrmac[module_idP]->common_channels;
+  nfapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config = NULL;
 
   start_meas(&RC.nrmac[module_idP]->eNB_scheduler);
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_DLSCH_ULSCH_SCHEDULER,VCD_FUNCTION_IN);
@@ -332,7 +333,7 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
                                     frameP,
                                     slotP,
                                     *cfg))
-          nr_schedule_uss_dlsch_phytest(module_idP, frameP, slotP);
+          nr_schedule_uss_dlsch_phytest(module_idP, frameP, slotP, dlsch_config);
 
       rnti = UE_RNTI(module_idP, i);
       CC_id = UE_PCCID(module_idP, i);
@@ -440,7 +441,7 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
     nr_schedule_css_dlsch_phytest(module_idP, frameP, slotP);*/
 
   if (slotP==1)
-  nr_schedule_uss_dlsch_phytest(module_idP, frameP, slotP);
+  nr_schedule_uss_dlsch_phytest(module_idP, frameP, slotP, dlsch_config);
 
   /*
   // Allocate CCEs for good after scheduling is done
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
index b825b528ac..bf39adf189 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
@@ -176,7 +176,8 @@ void nr_schedule_css_dlsch_phytest(module_id_t   module_idP,
  * current version has only a DCI for type 1 PDCCH for C_RNTI*/
 void nr_schedule_uss_dlsch_phytest(module_id_t   module_idP,
                                    frame_t       frameP,
-                                   sub_frame_t   slotP)
+                                   sub_frame_t   slotP,
+                                   nfapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config)
 {
   uint8_t  CC_id;
 
@@ -228,6 +229,14 @@ void nr_schedule_uss_dlsch_phytest(module_id_t   module_idP,
     dlsch_pdu_rel15->ndi = 1;
     dlsch_pdu_rel15->redundancy_version = 0;
 
+    if (dlsch_config != NULL) {
+      dlsch_pdu_rel15->start_prb = dlsch_config->start_prb;
+      dlsch_pdu_rel15->n_prb = dlsch_config->n_prb;
+      dlsch_pdu_rel15->start_symbol = dlsch_config->start_symbol;
+      dlsch_pdu_rel15->nb_symbols = dlsch_config->nb_symbols;
+      dlsch_pdu_rel15->mcs_idx = dlsch_config->mcs_idx;
+    }
+
     nr_configure_dci_from_pdcch_config(params_rel15,
                                        coreset,
                                        search_space,
diff --git a/openair2/LAYER2/NR_MAC_gNB/mac_proto.h b/openair2/LAYER2/NR_MAC_gNB/mac_proto.h
index a2ce3fd035..f5c8f56a4f 100644
--- a/openair2/LAYER2/NR_MAC_gNB/mac_proto.h
+++ b/openair2/LAYER2/NR_MAC_gNB/mac_proto.h
@@ -76,7 +76,8 @@ void nr_schedule_css_dlsch_phytest(module_id_t   module_idP,
 
 void nr_schedule_uss_dlsch_phytest(module_id_t   module_idP,
                                    frame_t       frameP,
-                                   sub_frame_t   slotP);
+                                   sub_frame_t   slotP,
+                                   nfapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config);
 
 void nr_configure_css_dci_initial(nfapi_nr_dl_config_pdcch_parameters_rel15_t* pdcch_params,
                                   nr_scs_e scs_common,