Time domain samples scope for NR UE

Add a new scope data source (ueTimeDomainSamples) which provides time domain samples
for antenna 0 to the scope. Add graphical representation of the data in imscope.

Removed C-define from ENABLE_IMSCOPE cmake option, the #define was unused and this way
code does not have to be recompiled when imscope enable state changes.

CMakeLists.txt

@@ -293,7 +293,7 @@ set_property(CACHE KPM_VERSION PROPERTY STRINGS "KPM_V2_03" "KPM_V3_00")
 message(STATUS "Selected KPM Version: ${KPM_VERSION}")
 
 
-add_boolean_option(ENABLE_IMSCOPE OFF "Enable phy scope based on imgui" ON)
+add_boolean_option(ENABLE_IMSCOPE OFF "Enable phy scope based on imgui" OFF)
 
 ##################################################
 # ASN.1 grammar C code generation & dependencies #

executables/nr-ue.c

@@ -37,6 +37,7 @@
 #include "LAYER2/nr_pdcp/nr_pdcp_oai_api.h"
 #include "LAYER2/nr_rlc/nr_rlc_oai_api.h"
 #include "RRC/NR/MESSAGES/asn1_msg.h"
+#include "openair1/PHY/TOOLS/phy_scope_interface.h"
 
 /*
  *  NR SLOT PROCESSING SEQUENCE
@@ -958,6 +959,7 @@ void *UE_thread(void *arg)
     const int readBlockSize = get_readBlockSize(slot_nr, fp) - iq_shift_to_apply;
     openair0_timestamp rx_timestamp;
     int tmp = UE->rfdevice.trx_read_func(&UE->rfdevice, &rx_timestamp, rxp, readBlockSize, fp->nb_antennas_rx);
+    UEscopeCopy(UE, ueTimeDomainSamples, rxp[0], sizeof(c16_t), 1, readBlockSize, 0);
     AssertFatal(readBlockSize == tmp, "");
 
     if(slot_nr == (nb_slot_frame - 1)) {

openair1/PHY/TOOLS/imscope/imscope.cpp

@@ -480,6 +480,16 @@ void ShowUeScope(PHY_VARS_NR_UE *ue, float t)
     pdsch_iq_hist->Draw(iq_data, t, new_data);
     ImGui::TreePop();
   }
+  if (ImGui::TreeNode("Time domain samples")) {
+    static auto iq_data = new IQData();
+    static auto time_domain_iq = new IQHist("Time domain samples");
+    bool new_data = false;
+    if (time_domain_iq->ShouldReadData()) {
+      new_data = iq_data->TryCollect(&scope_array[ueTimeDomainSamples], 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

@@ -73,6 +73,7 @@ enum scopeDataType {
   MAX_SCOPE_TYPES,
   gNBPuschRxIq = MAX_SCOPE_TYPES,
   gNBPuschLlr,
+  ueTimeDomainSamples,
   EXTRA_SCOPE_TYPES
 };