NR_SC_FDMA changes

- CDM groups used, multiple DMRS locations tested
- REMOVED compiler define NR_SC_FDMA
- enabled -Z option in ulsim for testing NR SC-FDMA
- Gnb UL Processing of LLRS even if last symbol allocated has no data
- transform precoding Enumerations used

openair1/PHY/INIT/nr_init.c

@@ -43,6 +43,8 @@
 #include "SCHED_NR/fapi_nr_l1.h"
 #include "nfapi_nr_interface.h"
 
+#include "PHY/NR_REFSIG/ul_ref_seq_nr.h"
+
 /*
 extern uint32_t from_nrarfcn(int nr_bandP,uint32_t dl_nrarfcn);
 extern openair0_config_t openair0_cfg[MAX_CARDS];
@@ -194,6 +196,10 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
     }
   }
 
+  /* Generate low PAPR type 1 sequences for PUSCH DMRS, these are used if transform precoding is enabled.  */
+  generate_lowpapr_typ1_refsig_sequences(SHRT_MAX);
+  
+
   nr_init_csi_rs(gNB, 0); // TODO scramblingID currently hardcoded to 0, to be taken from higher layer parameter scramblingID when implemented
 
   /// Transport init necessary for NR synchro
@@ -388,6 +394,11 @@ void phy_free_nr_gNB(PHY_VARS_gNB *gNB)
 /*
   for (UE_id = 0; UE_id < NUMBER_OF_UE_MAX; UE_id++) gNB->UE_stats_ptr[UE_id] = NULL;
 */
+
+
+  free_gnb_lowpapr_sequences();
+
+
 }
 /*
 void install_schedule_handlers(IF_Module_t *if_inst)