Adding freq domain deroration to DL

also fixed build wanings

executables/nr-uesoftmodem.c

@@ -470,6 +470,7 @@ int main( int argc, char **argv ) {
     nr_init_frame_parms_ue(&UE[CC_id]->frame_parms, nrUE_config, *mac->scc->downlinkConfigCommon->frequencyInfoDL->frequencyBandList.list.array[0]);
 
     init_symbol_rotation(&UE[CC_id]->frame_parms);
+    init_timeshift_rotation(&UE[CC_id]->frame_parms);
     init_nr_ue_vars(UE[CC_id], 0, abstraction_flag);
 
     #ifdef FR2_TEST

openair1/PHY/MODULATION/nr_modulation.c

@@ -749,7 +749,6 @@ void init_timeshift_rotation(NR_DL_FRAME_PARMS *fp)
 {
   const double fd = 15e3*(float)(1<<fp->numerology_index);
   const double Tc=(1/480e3/4096);
-  const double Nu=2048*64*(1/(float)(1<<fp->numerology_index));
   const double Ncp0=16*64 + (144*64*(1/(float)(1<<fp->numerology_index)));
   const double Ncp1=(144*64*(1/(float)(1<<fp->numerology_index)));
   double t0;

openair1/PHY/MODULATION/nr_modulation.h

@@ -117,6 +117,8 @@ void apply_nr_rotation(NR_DL_FRAME_PARMS *fp,
 
 void init_symbol_rotation(NR_DL_FRAME_PARMS *fp);
 
+void init_timeshift_rotation(NR_DL_FRAME_PARMS *fp);
+
 void apply_nr_rotation_ul(NR_DL_FRAME_PARMS *frame_parms,
 			  int32_t *rxdataF,
 			  int slot,

openair1/PHY/MODULATION/slot_fep_nr.c

@@ -157,6 +157,19 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
 		      (int16_t *)&common_vars->common_vars_rx_data_per_thread[proc->thread_id].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],
 		      frame_parms->ofdm_symbol_size,
 		      15);
+
+    int16_t *shift_rot;
+    if (symb_offset+symbol == (7 * (1 << frame_parms->numerology_index)))
+      shift_rot = frame_parms->timeshift_symbol_rotation[0];
+    else
+      shift_rot = frame_parms->timeshift_symbol_rotation[1];
+
+    multadd_cpx_vector((int16_t *)&common_vars->common_vars_rx_data_per_thread[proc->thread_id].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],
+          shift_rot,
+          (int16_t *)&common_vars->common_vars_rx_data_per_thread[proc->thread_id].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],
+          1,
+          frame_parms->ofdm_symbol_size,
+          15);
   }
 
 #ifdef DEBUG_FEP