init frame parms ue sa

common/utils/nr/nr_common.c

@@ -106,6 +106,40 @@ nr_bandentry_t nr_bandtable[] = {
   {261,27500040,28350000,27500040,28350000,  2,2070833, 120}
 };
 
+uint16_t get_band(uint64_t downlink_frequency, int32_t delta_duplex)
+{
+  const uint64_t dl_freq_khz = downlink_frequency / 1000;
+  const int32_t  delta_duplex_khz = delta_duplex / 1000;
+
+  uint64_t center_freq_diff_khz = 999999999999999999; // 2^64
+  uint16_t current_band = 0;
+
+  for (int ind = 0; ind < nr_bandtable_size; ind++) {
+
+    if (dl_freq_khz < nr_bandtable[ind].dl_min || dl_freq_khz > nr_bandtable[ind].dl_max)
+      continue;
+
+    int32_t current_offset_khz = nr_bandtable[ind].ul_min - nr_bandtable[ind].dl_min;
+
+    if (current_offset_khz != delta_duplex_khz)
+      continue;
+
+    uint64_t center_frequency_khz = (nr_bandtable[ind].dl_max + nr_bandtable[ind].dl_min) / 2;
+
+    if (abs(dl_freq_khz - center_frequency_khz) < center_freq_diff_khz){
+      current_band = nr_bandtable[ind].band;
+      center_freq_diff_khz = abs(dl_freq_khz - center_frequency_khz);
+    }
+  }
+
+  printf("DL frequency %"PRIu64": band %d, UL frequency %"PRIu64"\n",
+        downlink_frequency, current_band, downlink_frequency+delta_duplex);
+
+  AssertFatal(current_band != 0, "Can't find EUTRA band for frequency %"PRIu64" and duplex_spacing %u\n", downlink_frequency, delta_duplex);
+
+  return current_band;
+}
+
 const size_t nr_bandtable_size = sizeof(nr_bandtable) / sizeof(nr_bandentry_t);
 
 int NRRIV2BW(int locationAndBandwidth,int N_RB) {

common/utils/nr/nr_common.h

@@ -50,6 +50,7 @@ typedef struct nr_bandentry_s {
 extern const size_t nr_bandtable_size;
 extern nr_bandentry_t nr_bandtable[];
 
+uint16_t get_band(uint64_t downlink_frequency, int32_t delta_duplex);
 int NRRIV2BW(int locationAndBandwidth,int N_RB);
 int NRRIV2PRBOFFSET(int locationAndBandwidth,int N_RB);
 int PRBalloc_to_locationandbandwidth0(int NPRB,int RBstart,int BWPsize);

executables/nr-softmodem-common.h

@@ -64,6 +64,7 @@
 #define CONFIG_HLP_NOSNGLT       "Disables single-thread mode in lte-softmodem\n"
 #define CONFIG_HLP_TADV          "Set timing_advance\n"
 #define CONFIG_HLP_DLF           "Set the downlink frequency for all component carriers\n"
+#define CONFIG_HLP_ULOFF         "Set the uplink frequnecy offset for all component carriers\n"
 #define CONFIG_HLP_CHOFF         "Channel id offset\n"
 #define CONFIG_HLP_SOFTS         "Enable soft scope and L1 and L2 stats (Xforms)\n"
 #define CONFIG_HLP_EXMCAL        "Calibrate the EXMIMO borad, available files: exmimo2_2arxg.lime exmimo2_2brxg.lime \n"

executables/nr-uesoftmodem.c

@@ -438,6 +438,9 @@ int main( int argc, char **argv ) {
 
     set_options(CC_id, UE[CC_id]);
 
+    if (get_softmodem_params()->sa)
+      nr_init_frame_parms_ue_sa(&UE[CC_id]->frame_parms,downlink_frequency[CC_id][0],uplink_frequency_offset[CC_id][0]);
+    else{
       NR_UE_MAC_INST_t *mac = get_mac_inst(0);
       if(mac->if_module != NULL && mac->if_module->phy_config_request != NULL)
         mac->if_module->phy_config_request(&mac->phy_config);
@@ -445,6 +448,7 @@ int main( int argc, char **argv ) {
       fapi_nr_config_request_t *nrUE_config = &UE[CC_id]->nrUE_config;
 
       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_nr_ue_vars(UE[CC_id], 0, abstraction_flag);

executables/nr-uesoftmodem.h

@@ -56,7 +56,8 @@
     {"ue-fo-compensation",       CONFIG_HLP_UEFO,        PARAMFLAG_BOOL,  iptr:&(UE->UE_fo_compensation),     defintval:0,           TYPE_INT,   0}, \
     {"ue-max-power",             NULL,                   0,               iptr:&(tx_max_power[0]),            defintval:90,          TYPE_INT,   0}, \
     {"A" ,                       CONFIG_HLP_TADV,        0,               iptr:&(UE->timing_advance),         defintval:0,           TYPE_INT,   0}, \
-    {"C" ,                       CONFIG_HLP_DLF,         0,               u64ptr:&(downlink_frequency[0][0]), defuintval:DEFAULT_DLF,TYPE_UINT64,0}, \
+    {"D" ,                       CONFIG_HLP_DLF,         0,               u64ptr:&(downlink_frequency[0][0]), defuintval:DEFAULT_DLF,TYPE_UINT64,0}, \
+    {"U" ,                       CONFIG_HLP_ULOFF,       0,               iptr:&(uplink_frequency_offset[0][0]), defuintval:0,       TYPE_INT,   0}, \
     {"E" ,                       CONFIG_HLP_TQFS,        PARAMFLAG_BOOL,  u8ptr:&(fp->threequarter_fs),       defintval:0,           TYPE_UINT8, 0}, \
     {"m" ,                       CONFIG_HLP_MUSSB,       0,               u8ptr:&(fp->numerology_index),      defintval:0,           TYPE_UINT8, 0}, \
     {"r"  ,                      CONFIG_HLP_PRB,         0,               iptr:&(fp->N_RB_DL),                defintval:106,         TYPE_UINT,  0}, \

openair1/PHY/INIT/nr_init.c

@@ -46,42 +46,6 @@
 
 #include "PHY/NR_REFSIG/ul_ref_seq_nr.h"
 
-static
-uint16_t get_band(uint64_t downlink_frequency, int32_t delta_duplex)
-{
-  const uint64_t dl_freq_khz = downlink_frequency / 1000;
-  const int32_t  delta_duplex_khz = delta_duplex / 1000;
-
-  uint64_t center_freq_diff_khz = 999999999999999999; // 2^64
-  uint16_t current_band = 0;
-
-  for (int ind = 0; ind < nr_bandtable_size; ind++) {
-
-    LOG_D(PHY, "Scanning band %d, dl_min %"PRIu64", ul_min %"PRIu64"\n", nr_bandtable[ind].band, nr_bandtable[ind].dl_min, nr_bandtable[ind].ul_min);
-
-    if (dl_freq_khz < nr_bandtable[ind].dl_min || dl_freq_khz > nr_bandtable[ind].dl_max)
-      continue;
-
-    int32_t current_offset_khz = nr_bandtable[ind].ul_min - nr_bandtable[ind].dl_min;
-
-    if (current_offset_khz != delta_duplex_khz)
-      continue;
-
-    uint64_t center_frequency_khz = (nr_bandtable[ind].dl_max + nr_bandtable[ind].dl_min) / 2;
-
-    if (abs(dl_freq_khz - center_frequency_khz) < center_freq_diff_khz){
-      current_band = nr_bandtable[ind].band;
-      center_freq_diff_khz = abs(dl_freq_khz - center_frequency_khz);
-    }
-  }
-
-  LOG_I(PHY, "DL frequency %"PRIu64": band %d, UL frequency %"PRIu64"\n",
-        downlink_frequency, current_band, downlink_frequency+delta_duplex);
-
-  AssertFatal(current_band != 0, "Can't find EUTRA band for frequency %"PRIu64" and duplex_spacing %u\n", downlink_frequency, delta_duplex);
-
-  return current_band;
-}
 
 int l1_north_init_gNB() {
 

openair1/PHY/INIT/nr_parms.c

@@ -20,6 +20,7 @@
  */
 
 #include "phy_init.h"
+#include "common/utils/nr/nr_common.h"
 #include "common/utils/LOG/log.h"
 #include "LAYER2/NR_MAC_gNB/mac_proto.h"
 
@@ -27,6 +28,18 @@
 uint32_t nr_subcarrier_spacing[MAX_NUM_SUBCARRIER_SPACING] = {15e3, 30e3, 60e3, 120e3, 240e3};
 uint16_t nr_slots_per_subframe[MAX_NUM_SUBCARRIER_SPACING] = {1, 2, 4, 8, 16};
 
+void set_Lmax(NR_DL_FRAME_PARMS *fp) {
+  // definition of Lmax according to ts 38.213 section 4.1
+  if (fp->dl_CarrierFreq < 6e9) {
+    if(fp->frame_type && (fp->ssb_type==2))
+      fp->Lmax = (fp->dl_CarrierFreq < 2.4e9)? 4 : 8;
+    else
+      fp->Lmax = (fp->dl_CarrierFreq < 3e9)? 4 : 8;
+  } else {
+    fp->Lmax = 64;
+  }
+}
+
 int nr_get_ssb_start_symbol(NR_DL_FRAME_PARMS *fp)
 {
 
@@ -224,15 +237,7 @@ int nr_init_frame_parms(nfapi_nr_config_request_scf_t* cfg,
 
   fp->Ncp = Ncp;
 
-  // definition of Lmax according to ts 38.213 section 4.1
-  if (fp->dl_CarrierFreq < 6e9) {
-    if(fp->frame_type && (fp->ssb_type==2))
-      fp->Lmax = (fp->dl_CarrierFreq < 2.4e9)? 4 : 8;
-    else
-      fp->Lmax = (fp->dl_CarrierFreq < 3e9)? 4 : 8;
-  } else {
-    fp->Lmax = 64;
-  }
+  set_Lmax(fp);
 
   fp->N_ssb = 0;
   int num_tx_ant = cfg->carrier_config.num_tx_ant.value;
@@ -316,15 +321,7 @@ int nr_init_frame_parms_ue(NR_DL_FRAME_PARMS *fp,
 
   fp->ssb_start_subcarrier = (12 * config->ssb_table.ssb_offset_point_a + sco);
 
-  // definition of Lmax according to ts 38.213 section 4.1
-  if (fp->dl_CarrierFreq < 6e9) {
-    if(fp->frame_type && (fp->ssb_type==2))
-      fp->Lmax = (fp->dl_CarrierFreq < 2.4e9)? 4 : 8;
-    else
-      fp->Lmax = (fp->dl_CarrierFreq < 3e9)? 4 : 8;
-  } else {
-    fp->Lmax = 64;
-  }
+  set_Lmax(fp);
 
   fp->L_ssb = (((uint64_t) config->ssb_table.ssb_mask_list[0].ssb_mask)<<32) | config->ssb_table.ssb_mask_list[1].ssb_mask;
   
@@ -335,6 +332,44 @@ int nr_init_frame_parms_ue(NR_DL_FRAME_PARMS *fp,
   return 0;
 }
 
+void nr_init_frame_parms_ue_sa(NR_DL_FRAME_PARMS *frame_parms, uint64_t downlink_frequency, int32_t delta_duplex) {
+
+  LOG_I(PHY,"SA init parameters. DL freq %lu UL offset %d SSB numerology %d N_RB_DL %d\n",
+        downlink_frequency,
+        delta_duplex,
+        frame_parms->numerology_index,
+        frame_parms->N_RB_DL);
+
+  frame_parms->dl_CarrierFreq = downlink_frequency;
+  frame_parms->ul_CarrierFreq = downlink_frequency + delta_duplex;
+  frame_parms->freq_range = (frame_parms->dl_CarrierFreq < 6e9)? nr_FR1 : nr_FR2;
+  frame_parms->N_RB_UL = frame_parms->N_RB_UL;
+
+  frame_parms->nr_band = get_band(downlink_frequency, delta_duplex);
+  frame_parms->frame_type = get_frame_type(frame_parms->nr_band, frame_parms->numerology_index);
+
+  frame_parms->Ncp = NORMAL;
+  set_scs_parameters(frame_parms, frame_parms->numerology_index, frame_parms->N_RB_DL);
+  set_Lmax(frame_parms);
+
+  frame_parms->slots_per_frame = 10* frame_parms->slots_per_subframe;
+  frame_parms->symbols_per_slot = ((frame_parms->Ncp == NORMAL)? 14 : 12); // to redefine for different slot formats
+  frame_parms->samples_per_subframe_wCP = frame_parms->ofdm_symbol_size * frame_parms->symbols_per_slot * frame_parms->slots_per_subframe;
+  frame_parms->samples_per_frame_wCP = 10 * frame_parms->samples_per_subframe_wCP;
+  frame_parms->samples_per_slot_wCP = frame_parms->symbols_per_slot*frame_parms->ofdm_symbol_size;
+  frame_parms->samples_per_slotN0 = (frame_parms->nb_prefix_samples + frame_parms->ofdm_symbol_size) * frame_parms->symbols_per_slot;
+  frame_parms->samples_per_slot0 = frame_parms->nb_prefix_samples0 + ((frame_parms->symbols_per_slot-1)*frame_parms->nb_prefix_samples) + (frame_parms->symbols_per_slot*frame_parms->ofdm_symbol_size);
+  frame_parms->samples_per_subframe = (frame_parms->nb_prefix_samples0 + frame_parms->ofdm_symbol_size) * 2 +
+                             (frame_parms->nb_prefix_samples + frame_parms->ofdm_symbol_size) * (frame_parms->symbols_per_slot * frame_parms->slots_per_subframe - 2);
+  frame_parms->get_samples_per_slot = &get_samples_per_slot;
+  frame_parms->get_samples_slot_timestamp = &get_samples_slot_timestamp;
+  frame_parms->samples_per_frame = 10 * frame_parms->samples_per_subframe;
+
+  exit(1);
+
+}
+
+
 void nr_dump_frame_parms(NR_DL_FRAME_PARMS *fp)
 {
   LOG_I(PHY,"fp->scs=%d\n",fp->subcarrier_spacing);

openair1/PHY/INIT/phy_init.h

@@ -389,12 +389,12 @@ void phy_config_request(PHY_Config_t *phy_config);
 void phy_config_update_sib2_request(PHY_Config_t *phy_config);
 void phy_config_update_sib13_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);
 int nr_init_frame_parms(nfapi_nr_config_request_scf_t *config, NR_DL_FRAME_PARMS *frame_parms);
 int nr_init_frame_parms_ue(NR_DL_FRAME_PARMS *frame_parms, fapi_nr_config_request_t *config, uint16_t nr_band);
+void nr_init_frame_parms_ue_sa(NR_DL_FRAME_PARMS *frame_parms, uint64_t downlink_frequency, int32_t uplink_frequency_offset);
 int init_nr_ue_signal(PHY_VARS_NR_UE *ue,int nb_connected_eNB,uint8_t abstraction_flag);
 void init_nr_ue_transport(PHY_VARS_NR_UE *ue,int abstraction_flag);
 void init_N_TA_offset(PHY_VARS_NR_UE *ue);