Add time domain sample scope before sync

Added new data sync for UE which displays time domain samples read from RF device
before synchronization to PSS/SSS

executables/nr-ue.c

@@ -707,8 +707,10 @@ void readFrame(PHY_VARS_NR_UE *UE,  openair0_timestamp *timestamp, bool toTrash)
                    + 4 * ((x * fp->samples_per_subframe) + fp->get_samples_slot_timestamp(slot, fp, 0));
       }
 
-      int tmp = UE->rfdevice.trx_read_func(&UE->rfdevice, timestamp, rxp, fp->get_samples_per_slot(slot, fp), fp->nb_antennas_rx);
-      AssertFatal(fp->get_samples_per_slot(slot, fp) == tmp, "");
+      int read_block_size = fp->get_samples_per_slot(slot, fp);
+      int tmp = UE->rfdevice.trx_read_func(&UE->rfdevice, timestamp, rxp, read_block_size, fp->nb_antennas_rx);
+      UEscopeCopy(UE, ueTimeDomainSamplesBeforeSync, rxp[0], sizeof(c16_t), 1, read_block_size, 0);
+      AssertFatal(read_block_size == tmp, "");
 
       if (IS_SOFTMODEM_RFSIM)
         dummyWrite(UE, *timestamp, fp->get_samples_per_slot(slot, fp));

openair1/PHY/TOOLS/imscope/imscope.cpp

@@ -499,6 +499,16 @@ void ShowUeScope(PHY_VARS_NR_UE *ue, float t)
     time_domain_iq->Draw(iq_data, t, new_data);
     ImGui::TreePop();
   }
+  if (ImGui::TreeNode("Time domain samples - before sync")) {
+    static auto iq_data = new IQData();
+    static auto time_domain_iq = new IQHist("Time domain samples - before sync");
+    bool new_data = false;
+    if (time_domain_iq->ShouldReadData()) {
+      new_data = iq_data->TryCollect(&scope_array[ueTimeDomainSamplesBeforeSync], t, time_domain_iq->GetEpsilon());
+    }
+    time_domain_iq->Draw(iq_data, t, new_data);
+    ImGui::TreePop();
+  }
   if (ImGui::TreeNode("Broadcast channel")) {
     ImGui::Text("RSRP %d", ue->measurements.ssb_rsrp_dBm[ue->frame_parms.ssb_index]);
     if (ImGui::TreeNode("IQ")) {

openair1/PHY/TOOLS/phy_scope_interface.h

@@ -74,6 +74,7 @@ enum scopeDataType {
   gNBPuschRxIq = MAX_SCOPE_TYPES,
   gNBPuschLlr,
   ueTimeDomainSamples,
+  ueTimeDomainSamplesBeforeSync,
   EXTRA_SCOPE_TYPES
 };