Added srsue argument for enabling EVM calculation

lib/include/srslte/interfaces/ue_interfaces.h

@@ -466,10 +466,11 @@ typedef struct {
   float dl_freq = -1.0f;
   float ul_freq = -1.0f;
 
-  bool  ul_pwr_ctrl_en  = false;
+  bool     ul_pwr_ctrl_en  = false;
-  float prach_gain      = -1;
+  float    prach_gain      = -1;
-  int   pdsch_max_its   = 8;
+  uint32_t pdsch_max_its   = 8;
-  int   nof_phy_threads = 3;
+  bool     meas_evm        = false;
+  int      nof_phy_threads = 3;
 
   int worker_cpu_mask   = -1;
   int sync_cpu_affinity = -1;

srsue/src/main.cc

@@ -254,9 +254,13 @@ static int parse_args(all_args_t* args, int argc, char* argv[])
      "Sets the noise estimation algorithm. (Default refs)")
 
     ("phy.pdsch_max_its",
-     bpo::value<int>(&args->phy.pdsch_max_its)->default_value(8),
+     bpo::value<uint32_t>(&args->phy.pdsch_max_its)->default_value(8),
      "Maximum number of turbo decoder iterations")
 
+    ("phy.meas_evm",
+     bpo::value<bool>(&args->phy.meas_evm)->default_value(false),
+     "Measure PDSCH EVM, increases CPU load (default false)")
+
     ("phy.nof_phy_threads",
      bpo::value<int>(&args->phy.nof_phy_threads)->default_value(3),
      "Number of PHY threads")

srsue/src/phy/phy_common.cc

@@ -110,9 +110,9 @@ void phy_common::set_ue_dl_cfg(srslte_ue_dl_cfg_t* ue_dl_cfg)
 
 void phy_common::set_pdsch_cfg(srslte_pdsch_cfg_t* pdsch_cfg)
 {
-  bzero(pdsch_cfg, sizeof(srslte_pdsch_cfg_t));
   pdsch_cfg->csi_enable         = args->pdsch_csi_enabled;
   pdsch_cfg->max_nof_iterations = args->pdsch_max_its;
+  pdsch_cfg->meas_evm_en        = args->meas_evm;
   pdsch_cfg->decoder_type       = (args->equalizer_mode == "zf") ? SRSLTE_MIMO_DECODER_ZF : SRSLTE_MIMO_DECODER_MMSE;
 }
 

srsue/ue.conf.example

@@ -285,6 +285,7 @@ enable = false
 #                                   refs:  use difference between noise references and noiseless (after filtering)
 #                                   empty: use empty subcarriers in the boarder of pss/sss signal
 # pdsch_max_its:        Maximum number of turbo decoder iterations (Default 4)
+# pdsch_meas_evm:       Measure PDSCH EVM, increases CPU load (default false)
 # nof_phy_threads:      Selects the number of PHY threads (maximum 4, minimum 1, default 2)
 # equalizer_mode:       Selects equalizer mode. Valid modes are: "mmse", "zf" or any 
 #                       non-negative real number to indicate a regularized zf coefficient.
@@ -326,6 +327,7 @@ enable = false
 #snr_ema_coeff       = 0.1
 #snr_estim_alg       = refs
 #pdsch_max_its       = 8    # These are half iterations
+#pdsch_meas_evm      = false
 #nof_phy_threads     = 3
 #equalizer_mode      = mmse
 #correct_sync_error  = false