adding settings for NB-IoT testing

openair1/PHY/INIT/defs.h

@@ -24,6 +24,7 @@
 
 #include "PHY/defs.h"
 
+#include "PHY/defs_NB_IoT.h"
 
 #include "SystemInformationBlockType2.h"
 //#include "RadioResourceConfigCommonSIB.h"
@@ -338,6 +339,9 @@ void phy_cleanup(void);
 
 
 int init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms,uint8_t osf);
+
+
+
 void dump_frame_parms(LTE_DL_FRAME_PARMS *frame_parms);
 
 void lte_param_init(unsigned char N_tx_port_eNB, 
@@ -353,5 +357,30 @@ void lte_param_init(unsigned char N_tx_port_eNB,
                     uint8_t osf,
 		    uint32_t perfect_ce);
 /** @} */
+
+
+// for NB-IoT 
+int init_frame_parms_NB_IoT(NB_IoT_DL_FRAME_PARMS *frame_parms,uint8_t osf);
+
+void phy_init_lte_top_NB_IoT(NB_IoT_DL_FRAME_PARMS *lte_frame_parms);
+
+
+/*!
+\brief Allocate and initialize the PHY variables relevant to the LTE implementation (eNB).
+\details Only a subset of phy_vars_eNb is initialized.
+@param[out] phy_vars_eNb Pointer to eNB Variables
+@param is_secondary_eNb Flag to indicate this eNB gets synch from another
+@param abstraction_flag 1 indicates memory should be allocated for abstracted MODEM
+@returns 0 on success
+@returns -1 if any memory allocation failed
+@note The current implementation will never return -1, but segfault.
+ */
+int phy_init_lte_eNB_NB_IoT(PHY_VARS_eNB_NB_IoT *phy_vars_eNb,
+                     unsigned char is_secondary_eNb,
+                     unsigned char abstraction_flag);
+
+
+
+
 #endif
 

openair1/PHY/INIT/defs_NB_IoT.h

@@ -76,5 +76,6 @@ void phy_config_dedicated_eNB_NB_IoT(module_id_t Mod_id,
 
 
 
+
 #endif
 

openair1/PHY/INIT/lte_parms.c

@@ -21,6 +21,7 @@
 
 #include "defs.h"
 #include "log.h"
+#include "PHY/impl_defs_lte_NB_IoT.h"
 
 uint16_t dl_S_table_normal[10]={3,9,10,11,12,3,9,10,11,6};
 uint16_t dl_S_table_extended[10]={3,8,9,10,3,8,9,5,0,0};
@@ -219,3 +220,154 @@ void dump_frame_parms(LTE_DL_FRAME_PARMS *frame_parms)
   printf("frame_parms->samples_per_tti=%d\n",frame_parms->samples_per_tti);
   printf("frame_parms->symbols_per_tti=%d\n",frame_parms->symbols_per_tti);
 }
+
+
+
+
+
+
+// NB-IoT 
+
+int init_frame_parms_NB_IoT(NB_IoT_DL_FRAME_PARMS *frame_parms,uint8_t osf)
+{
+
+  uint8_t log2_osf;
+
+#if DISABLE_LOG_X
+  printf("Initializing frame parms for N_RB_DL %d, Ncp %d, osf %d\n",frame_parms->N_RB_DL,frame_parms->Ncp,osf);
+#else
+  LOG_I(PHY,"Initializing frame parms for N_RB_DL %d, Ncp %d, osf %d\n",frame_parms->N_RB_DL,frame_parms->Ncp,osf);
+#endif
+
+  
+    frame_parms->nb_prefix_samples0 = 160;
+    frame_parms->nb_prefix_samples = 144;
+    frame_parms->symbols_per_tti = 14;
+      
+
+
+  switch(osf) {
+  case 1:
+    log2_osf = 0;
+    break;
+
+  case 2:
+    log2_osf = 1;
+    break;
+
+  case 4:
+    log2_osf = 2;
+    break;
+
+  case 8:
+    log2_osf = 3;
+    break;
+
+  case 16:
+    log2_osf = 4;
+    break;
+
+  default:
+    printf("Illegal oversampling %d\n",osf);
+    return(-1);
+  }
+
+  switch (frame_parms->N_RB_DL) {
+
+  case 100:
+    if (osf>1) {
+      printf("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
+      return(-1);
+    }
+
+    if (frame_parms->threequarter_fs) {
+      frame_parms->ofdm_symbol_size = 1536;
+      frame_parms->samples_per_tti = 23040;
+      frame_parms->first_carrier_offset = 1536-600;
+      frame_parms->nb_prefix_samples=(frame_parms->nb_prefix_samples*3)>>2;
+      frame_parms->nb_prefix_samples0=(frame_parms->nb_prefix_samples0*3)>>2;
+    }
+    else {
+      frame_parms->ofdm_symbol_size = 2048;
+      frame_parms->samples_per_tti = 30720;
+      frame_parms->first_carrier_offset = 2048-600;
+    }
+
+    break;
+
+  case 75:
+    if (osf>1) {
+      printf("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
+      return(-1);
+    }
+
+
+    frame_parms->ofdm_symbol_size = 1536;
+    frame_parms->samples_per_tti = 23040;
+    frame_parms->first_carrier_offset = 1536-450;
+    frame_parms->nb_prefix_samples=(frame_parms->nb_prefix_samples*3)>>2;
+    frame_parms->nb_prefix_samples0=(frame_parms->nb_prefix_samples0*3)>>2;
+
+    break;
+
+  case 50:
+    if (osf>1) {
+      printf("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
+      return(-1);
+    }
+
+    frame_parms->ofdm_symbol_size = 1024*osf;
+    frame_parms->samples_per_tti = 15360*osf;
+    frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 300;
+    frame_parms->nb_prefix_samples>>=(1-log2_osf);
+    frame_parms->nb_prefix_samples0>>=(1-log2_osf);
+
+    break;
+
+  case 25:
+    if (osf>2) {
+      printf("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
+      return(-1);
+    }
+
+    frame_parms->ofdm_symbol_size = 512*osf;
+
+
+    frame_parms->samples_per_tti = 7680*osf;
+    frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 150;
+    frame_parms->nb_prefix_samples>>=(2-log2_osf);
+    frame_parms->nb_prefix_samples0>>=(2-log2_osf);
+
+
+
+    break;
+
+  case 15:
+    frame_parms->ofdm_symbol_size = 256*osf;
+    frame_parms->samples_per_tti = 3840*osf;
+    frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 90;
+    frame_parms->nb_prefix_samples>>=(3-log2_osf);
+    frame_parms->nb_prefix_samples0>>=(3-log2_osf);
+
+    break;
+
+  case 6:
+    frame_parms->ofdm_symbol_size = 128*osf;
+    frame_parms->samples_per_tti = 1920*osf;
+    frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 36;
+    frame_parms->nb_prefix_samples>>=(4-log2_osf);
+    frame_parms->nb_prefix_samples0>>=(4-log2_osf);
+    break;
+
+  default:
+    printf("init_frame_parms: Error: Number of resource blocks (N_RB_DL %d) undefined, frame_parms = %p \n",frame_parms->N_RB_DL, frame_parms);
+    return(-1);
+    break;
+  }
+
+  printf("lte_parms.c: Setting N_RB_DL to %d, ofdm_symbol_size %d\n",frame_parms->N_RB_DL, frame_parms->ofdm_symbol_size);
+
+
+  //  frame_parms->tdd_config=3;
+  return(0);
+}

openair1/PHY/defs_NB_IoT.h

@@ -217,7 +217,7 @@ typedef enum  {
   eNodeB_3GPP_BBU_NB_IoT, // eNodeB with NGFI IF5
   NGFI_RCC_IF4p5_NB_IoT,  // NGFI_RCC (NGFI radio cloud center)
   NGFI_RAU_IF4p5_NB_IoT,
-  NGFI_RRU_IF5_Nb_IoT,    // NGFI_RRU (NGFI remote radio-unit,IF5)
+  NGFI_RRU_IF5_NB_IoT,    // NGFI_RRU (NGFI remote radio-unit,IF5)
   NGFI_RRU_IF4p5_NB_IoT   // NGFI_RRU (NGFI remote radio-unit,IF4p5)
 } eNB_func_NB_IoT_t;
 

openair1/PHY/impl_defs_lte_NB_IoT.h

@@ -533,7 +533,7 @@ typedef struct {
   /// flag to indicate SISO transmission
   uint8_t mode1_flag;
   /// Indicator that 20 MHz channel uses 3/4 sampling frequency
-  //uint8_t threequarter_fs;
+  uint8_t threequarter_fs;
   /// Size of FFT
   uint16_t ofdm_symbol_size;
   /// Number of prefix samples in all but first symbol of slot

openair2/ENB_APP/enb_config_NB_IoT.c

@@ -3270,16 +3270,6 @@ const Enb_properties_array_NB_IoT_t *enb_config_init_NB_IoT(char* lib_config_fil
                              lib_config_file_name_pP, i, npdcch_Offset_RA);
 
 
-
-
-
-
-
-
-
-
-
-
         //****************************************************************************************************************
         //****************************************************************************************************************
         //****************************************************************************************************************

targets/SIMU/USER/init_lte.c

@@ -150,6 +150,123 @@ PHY_VARS_eNB* init_lte_eNB(LTE_DL_FRAME_PARMS *frame_parms,
 
 
 
+PHY_VARS_eNB_NB_IoT* init_lte_eNB_NB_IoT(NB_IoT_DL_FRAME_PARMS *frame_parms,
+                                         uint8_t eNB_id,
+                                         uint8_t Nid_cell,
+                                         eNB_func_NB_IoT_t node_function,
+                                         uint8_t abstraction_flag)
+{
+
+  int i;
+  PHY_VARS_eNB_NB_IoT* PHY_vars_eNB = malloc(sizeof(PHY_VARS_eNB_NB_IoT));
+  memset(PHY_vars_eNB,0,sizeof(PHY_VARS_eNB_NB_IoT));
+  PHY_vars_eNB->Mod_id=eNB_id;
+  PHY_vars_eNB->cooperation_flag=0;//cooperation_flag;
+  memcpy(&(PHY_vars_eNB->frame_parms), frame_parms, sizeof(NB_IoT_DL_FRAME_PARMS));
+  PHY_vars_eNB->frame_parms.Nid_cell = ((Nid_cell/3)*3)+((eNB_id+Nid_cell)%3);
+  PHY_vars_eNB->frame_parms.nushift = PHY_vars_eNB->frame_parms.Nid_cell%6;
+  phy_init_lte_eNB_NB_IoT(PHY_vars_eNB,0,abstraction_flag);
+
+  /*LOG_I(PHY,"init eNB: Node Function %d\n",node_function);
+  LOG_I(PHY,"init eNB: Nid_cell %d\n", frame_parms->Nid_cell);
+  LOG_I(PHY,"init eNB: frame_type %d,tdd_config %d\n", frame_parms->frame_type,frame_parms->tdd_config);
+  LOG_I(PHY,"init eNB: number of ue max %d number of enb max %d number of harq pid max %d\n",
+        NUMBER_OF_UE_MAX, NUMBER_OF_eNB_MAX, NUMBER_OF_HARQ_PID_MAX);
+  LOG_I(PHY,"init eNB: N_RB_DL %d\n", frame_parms->N_RB_DL);
+  LOG_I(PHY,"init eNB: prach_config_index %d\n", frame_parms->prach_config_common.prach_ConfigInfo.prach_ConfigIndex);
+  */
+/*
+  if (node_function >= NGFI_RRU_IF5)
+    // For RRU, don't allocate DLSCH/ULSCH Transport channel buffers
+    return (PHY_vars_eNB);
+
+*/
+  /*
+  for (i=0; i<NUMBER_OF_UE_MAX_NB_IoT; i++) {
+    LOG_I(PHY,"Allocating Transport Channel Buffers for DLSCH, UE %d\n",i);
+    for (j=0; j<2; j++) {
+      PHY_vars_eNB->dlsch[i][j] = new_eNB_dlsch(1,8,NSOFT,frame_parms->N_RB_DL,abstraction_flag,frame_parms);
+      if (!PHY_vars_eNB->dlsch[i][j]) {
+  LOG_E(PHY,"Can't get eNB dlsch structures for UE %d \n", i);
+  exit(-1);
+      } else {
+  LOG_D(PHY,"dlsch[%d][%d] => %p\n",i,j,PHY_vars_eNB->dlsch[i][j]);
+  PHY_vars_eNB->dlsch[i][j]->rnti=0;
+      }
+    }
+    
+    LOG_I(PHY,"Allocating Transport Channel Buffer for ULSCH, UE %d\n", i);
+    PHY_vars_eNB->ulsch[1+i] = new_eNB_ulsch(MAX_TURBO_ITERATIONS,frame_parms->N_RB_UL, abstraction_flag);
+    
+    if (!PHY_vars_eNB->ulsch[1+i]) {
+      LOG_E(PHY,"Can't get eNB ulsch structures\n");
+      exit(-1);
+    }
+    
+*/
+
+    // this is the transmission mode for the signalling channels
+    // this will be overwritten with the real transmission mode by the RRC once the UE is connected
+    PHY_vars_eNB->transmission_mode[0] =  1 ;
+/*#ifdef LOCALIZATION
+    PHY_vars_eNB->ulsch[1+i]->aggregation_period_ms = 5000; // 5000 milliseconds // could be given as an argument (TBD))
+    struct timeval ts;
+    gettimeofday(&ts, NULL);
+    PHY_vars_eNB->ulsch[1+i]->reference_timestamp_ms = ts.tv_sec * 1000 + ts.tv_usec / 1000;
+    int j;
+    
+    for (j=0; j<10; j++) {
+      initialize(&PHY_vars_eNB->ulsch[1+i]->loc_rss_list[j]);
+      initialize(&PHY_vars_eNB->ulsch[1+i]->loc_rssi_list[j]);
+      initialize(&PHY_vars_eNB->ulsch[1+i]->loc_subcarrier_rss_list[j]);
+      initialize(&PHY_vars_eNB->ulsch[1+i]->loc_timing_advance_list[j]);
+      initialize(&PHY_vars_eNB->ulsch[1+i]->loc_timing_update_list[j]);
+    }
+    
+    initialize(&PHY_vars_eNB->ulsch[1+i]->tot_loc_rss_list);
+    initialize(&PHY_vars_eNB->ulsch[1+i]->tot_loc_rssi_list);
+    initialize(&PHY_vars_eNB->ulsch[1+i]->tot_loc_subcarrier_rss_list);
+    initialize(&PHY_vars_eNB->ulsch[1+i]->tot_loc_timing_advance_list);
+    initialize(&PHY_vars_eNB->ulsch[1+i]->tot_loc_timing_update_list);
+#endif*/
+ // }
+ 
+  /*
+  // ULSCH for RA
+  PHY_vars_eNB->ulsch[0] = new_eNB_ulsch(MAX_TURBO_ITERATIONS, frame_parms->N_RB_UL, abstraction_flag);
+  
+  if (!PHY_vars_eNB->ulsch[0]) {
+    LOG_E(PHY,"Can't get eNB ulsch structures\n");
+    exit(-1);
+  }
+  PHY_vars_eNB->dlsch_SI  = new_eNB_dlsch(1,8,NSOFT,frame_parms->N_RB_DL, abstraction_flag, frame_parms);
+  LOG_D(PHY,"eNB %d : SI %p\n",eNB_id,PHY_vars_eNB->dlsch_SI);
+  PHY_vars_eNB->dlsch_ra  = new_eNB_dlsch(1,8,NSOFT,frame_parms->N_RB_DL, abstraction_flag, frame_parms);
+  LOG_D(PHY,"eNB %d : RA %p\n",eNB_id,PHY_vars_eNB->dlsch_ra);
+  PHY_vars_eNB->dlsch_MCH = new_eNB_dlsch(1,8,NSOFT,frame_parms->N_RB_DL, 0, frame_parms);
+  LOG_D(PHY,"eNB %d : MCH %p\n",eNB_id,PHY_vars_eNB->dlsch_MCH);
+  */
+  
+  PHY_vars_eNB->rx_total_gain_dB=130;
+  
+ /* for(i=0; i<NUMBER_OF_UE_MAX; i++)
+    PHY_vars_eNB->mu_mimo_mode[i].dl_pow_off = 2;
+  
+  PHY_vars_eNB->check_for_total_transmissions = 0;
+  
+  PHY_vars_eNB->check_for_MUMIMO_transmissions = 0;
+  
+  PHY_vars_eNB->FULL_MUMIMO_transmissions = 0;
+  
+  PHY_vars_eNB->check_for_SUMIMO_transmissions = 0;
+  
+    PHY_vars_eNB->frame_parms.pucch_config_common.deltaPUCCH_Shift = 1;
+*/
+  return (PHY_vars_eNB);
+
+}
+
+
 /*this is a function just for initialization of NB-IoT stuff*/
 
 /*

targets/SIMU/USER/init_lte.h

@@ -50,3 +50,12 @@ void init_lte_vars(LTE_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs],
                    int nb_antennas_tx,
                    int nb_antennas_rx_ue,
                    uint8_t eMBMS_active_state);
+
+
+// for NB-IoT testing  
+
+PHY_VARS_eNB_NB_IoT* init_lte_eNB_NB_IoT(NB_IoT_DL_FRAME_PARMS *frame_parms,
+                                          uint8_t eNB_id,
+                                          uint8_t Nid_cell,
+                                          eNB_func_NB_IoT_t node_function,
+                                          uint8_t abstraction_flag);
\ No newline at end of file