Merge remote-tracking branch 'origin/442-integrate-pusch-into-nr-ue-softmodem' into nr_fapi_for_push

executables/nr-gnb.c

@@ -193,7 +193,6 @@ static inline int rxtx(PHY_VARS_gNB *gNB,int frame_rx, int slot_rx, int frame_tx
   // UE-specific RX processing for subframe n
   if (nfapi_mode == 0 || nfapi_mode == 1) */
 
-
   pthread_mutex_lock(&gNB->UL_INFO_mutex);
   gNB->UL_INFO.frame     = frame_rx;
   gNB->UL_INFO.slot      = slot_rx;

executables/nr-ru.c

@@ -731,10 +731,18 @@ void tx_rf(RU_t *ru,int frame,int slot, uint64_t timestamp) {
   int i;
   T(T_ENB_PHY_OUTPUT_SIGNAL, T_INT(0), T_INT(0), T_INT(frame), T_INT(slot),
     T_INT(0), T_BUFFER(&ru->common.txdata[0][slot * fp->samples_per_slot], fp->samples_per_slot * 4));
-  nr_subframe_t SF_type     = nr_slot_select(cfg,slot%fp->slots_per_frame);
   int sf_extension = 0;
+  nr_subframe_t SF_type     = nr_slot_select(cfg,slot%fp->slots_per_frame);
+
+  if ((slot == 0) ||
+      (slot == 1)) {
+    int siglen=fp->samples_per_slot;
+    int flags;
+    if (slot==0)
+      flags = 2;
+    else if (slot==1)
+      flags=3;
 
-    int siglen=fp->samples_per_slot,flags=1;
     /*
         if (SF_type == SF_S) {
           siglen = fp->dl_symbols_in_S_subframe*(fp->ofdm_symbol_size+fp->nb_prefix_samples0);
@@ -774,6 +782,7 @@ void tx_rf(RU_t *ru,int frame,int slot, uint64_t timestamp) {
           (long long unsigned int)timestamp,frame,proc->frame_tx_unwrap,slot);
     VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 0 );
     AssertFatal(txs ==  siglen+sf_extension,"TX : Timeout (sent %d/%d)\n",txs, siglen);
+  }
 }
 
 
@@ -1990,8 +1999,8 @@ void set_function_spec_param(RU_t *ru) {
         ru->fh_north_out          = fh_if4p5_north_out;       // send_IF4p5 on reception
         ru->fh_south_out          = tx_rf;                    // send output to RF
         ru->fh_north_asynch_in    = fh_if4p5_north_asynch_in; // TX packets come asynchronously
-        ru->feprx                 = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_fep_full_2thread : nr_fep_full;                 // RX DFTs
+        ru->feprx                 = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_fep_full_2thread : nr_fep_full;     // RX DFTs
-        ru->feptx_ofdm            = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_feptx_ofdm_2thread : nr_feptx_ofdm;               // this is fep with idft only (no precoding in RRU)
+        ru->feptx_ofdm            = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_feptx_ofdm_2thread : nr_feptx_ofdm; // this is fep with idft only (no precoding in RRU)
         ru->feptx_prec            = NULL;
         ru->nr_start_if           = nr_start_if;              // need to start the if interface for if4p5
         ru->ifdevice.host_type    = RRU_HOST;
@@ -2012,8 +2021,8 @@ void set_function_spec_param(RU_t *ru) {
         malloc_IF4p5_buffer(ru);
       } else if (ru->function == gNodeB_3GPP) {
         ru->do_prach             = 0;                       // no prach processing in RU
-        ru->feprx                = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_fep_full_2thread : nr_fep_full;                // RX DFTs
+        ru->feprx                = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_fep_full_2thread : nr_fep_full;     // RX DFTs
-        ru->feptx_ofdm           = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_feptx_ofdm_2thread : nr_feptx_ofdm;              // this is fep with idft and precoding
+        ru->feptx_ofdm           = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_feptx_ofdm_2thread : nr_feptx_ofdm; // this is fep with idft and precoding
         ru->feptx_prec           = NULL;              // this is fep with idft and precoding
         ru->fh_north_in          = NULL;                    // no incoming fronthaul from north
         ru->fh_north_out         = NULL;                    // no outgoing fronthaul to north
@@ -2042,13 +2051,13 @@ void set_function_spec_param(RU_t *ru) {
 
     case REMOTE_IF5: // the remote unit is IF5 RRU
       ru->do_prach               = 0;
-      ru->feprx                  = nr_fep_full;                   // this is frequency-shift + DFTs
+      ru->feprx                  = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_fep_full_2thread : nr_fep_full;     // this is frequency-shift + DFTs
-      ru->feptx_prec             = feptx_prec;                 // need to do transmit Precoding + IDFTs
+      ru->feptx_prec             = feptx_prec;          // need to do transmit Precoding + IDFTs
-      ru->feptx_ofdm             = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_feptx_ofdm_2thread : nr_feptx_ofdm;                 // need to do transmit Precoding + IDFTs
+      ru->feptx_ofdm             = (get_thread_worker_conf() == WORKER_ENABLE) ? nr_feptx_ofdm_2thread : nr_feptx_ofdm; // need to do transmit Precoding + IDFTs
-      ru->fh_south_in          = fh_if5_south_in;     // synchronous IF5 reception
+      ru->fh_south_in            = fh_if5_south_in;     // synchronous IF5 reception
-      ru->fh_south_out         = fh_if5_south_out;    // synchronous IF5 transmission
+      ru->fh_south_out           = fh_if5_south_out;    // synchronous IF5 transmission
-      ru->fh_south_asynch_in   = NULL;                // no asynchronous UL
+      ru->fh_south_asynch_in     = NULL;                // no asynchronous UL
-      ru->start_rf               = NULL;                 // no local RF
+      ru->start_rf               = NULL;                // no local RF
       ru->stop_rf                = NULL;
       ru->nr_start_if            = nr_start_if;         // need to start if interface for IF5
       ru->ifdevice.host_type     = RAU_HOST;

executables/nr-ue.c

@@ -699,7 +699,7 @@ void *UE_thread(void *arg) {
                slot_nr*UE->frame_parms.samples_per_slot];
 
     for (int i=0; i<UE->frame_parms.nb_antennas_tx; i++)
-      txp[i] = (void *)&UE->common_vars.txdata[i][((curMsg->proc.nr_tti_rx + 4)%nb_slot_frame)*UE->frame_parms.samples_per_slot];
+      txp[i] = (void *)&UE->common_vars.txdata[i][((curMsg->proc.nr_tti_rx + DURATION_RX_TO_TX)%nb_slot_frame)*UE->frame_parms.samples_per_slot];
 
     int readBlockSize, writeBlockSize;
 
@@ -725,7 +725,7 @@ void *UE_thread(void *arg) {
     AssertFatal( writeBlockSize ==
                  UE->rfdevice.trx_write_func(&UE->rfdevice,
                      timestamp+
-                     (4*UE->frame_parms.samples_per_slot) -
+                     (DURATION_RX_TO_TX*UE->frame_parms.samples_per_slot) -
                      UE->frame_parms.ofdm_symbol_size-UE->frame_parms.nb_prefix_samples0 -
                      openair0_cfg[0].tx_sample_advance,
                      txp,

openair1/PHY/INIT/nr_init.c

@@ -507,6 +507,26 @@ void init_nr_transport(PHY_VARS_gNB *gNB) {
         exit(-1);
       }
 
+      LOG_I(PHY,"Initializing nFAPI for ULSCH, UE %d\n",i);
+      // [hna] added here for RT implementation
+      uint8_t harq_pid = 0;
+      nfapi_nr_ul_config_ulsch_pdu *rel15_ul = &gNB->ulsch[i+1][j]->harq_processes[harq_pid]->ulsch_pdu;
+  
+      // --------- setting rel15_ul parameters ----------
+      rel15_ul->rnti                           = 0x1234;
+      rel15_ul->ulsch_pdu_rel15.start_rb       = 0;
+      rel15_ul->ulsch_pdu_rel15.number_rbs     = 50;
+      rel15_ul->ulsch_pdu_rel15.start_symbol   = 2;
+      rel15_ul->ulsch_pdu_rel15.number_symbols = 12;
+      rel15_ul->ulsch_pdu_rel15.nb_re_dmrs     = 6;
+      rel15_ul->ulsch_pdu_rel15.length_dmrs    = 1;
+      rel15_ul->ulsch_pdu_rel15.Qm             = 2;
+      rel15_ul->ulsch_pdu_rel15.mcs            = 9;
+      rel15_ul->ulsch_pdu_rel15.rv             = 0;
+      rel15_ul->ulsch_pdu_rel15.n_layers       = 1;
+      ///////////////////////////////////////////////////
+
+      //////////////////////////////////////////////////////////////////////////
     }
 
   }

openair1/PHY/INIT/nr_parms.c

@@ -79,6 +79,32 @@ int nr_get_ssb_start_symbol(NR_DL_FRAME_PARMS *fp, uint8_t i_ssb, uint8_t half_f
   return symbol;
 }
 
+int nr_is_ssb_slot(nfapi_nr_config_request_t *cfg, int slot)
+{
+
+  uint8_t n_hf;
+  int rel_slot;
+
+  n_hf = cfg->sch_config.half_frame_index.value;
+
+  // if SSB periodicity is 5ms, they are transmitted in both half frames
+  if ( cfg->sch_config.ssb_periodicity.value == 5) {
+    if (slot<10)
+      n_hf=0;
+    else
+      n_hf=1;
+  }
+
+  // to set a effective slot number between 0 to 9 in the half frame where the SSB is supposed to be
+  rel_slot = (n_hf)? (slot-10) : slot;
+
+  if(rel_slot<10 && rel_slot>=0)
+    return 1;
+  else
+    return 0;
+
+}
+
 
 int nr_init_frame_parms0(NR_DL_FRAME_PARMS *fp,
 			 int mu,

openair1/PHY/INIT/phy_init.h

@@ -378,6 +378,7 @@ void phy_config_request(PHY_Config_t *phy_config);
 int init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms,uint8_t osf);
 void dump_frame_parms(LTE_DL_FRAME_PARMS *frame_parms);
 int nr_get_ssb_start_symbol(NR_DL_FRAME_PARMS *fp, uint8_t i_ssb, uint8_t half_frame_index);
+int nr_is_ssb_slot(nfapi_nr_config_request_t *cfg, int slot);
 int nr_init_frame_parms(nfapi_nr_config_request_t *config, NR_DL_FRAME_PARMS *frame_parms);
 int nr_init_frame_parms_ue(NR_DL_FRAME_PARMS *frame_parms,int mu,int Ncp,int N_RB_DL,int n_ssb_crb,int ssb_subcarrier_offset);
 int init_nr_ue_signal(PHY_VARS_NR_UE *ue,int nb_connected_eNB,uint8_t abstraction_flag);

openair1/SCHED_NR/phy_procedures_nr_common.c

@@ -31,6 +31,7 @@
 */
 
 #include "sched_nr.h"
+#include "PHY/INIT/phy_init.h"
 
 nr_subframe_t nr_slot_select(nfapi_nr_config_request_t *cfg,
 		                     unsigned char slot)