Expose in-sync and out-of-sync constants to ue.conf

lib/include/srslte/interfaces/ue_interfaces.h

@@ -522,6 +522,11 @@ typedef struct {
   bool          pregenerate_signals              = false;
   float         force_ul_amplitude               = 0.0f;
 
+  float         in_sync_rsrp_dbm_th              = -130.0f;
+  float         in_sync_snr_db_th                = 1.0f;
+  uint32_t      nof_in_sync_events               = 10;
+  uint32_t      nof_out_of_sync_events           = 20;
+
   srslte::channel::args_t dl_channel_args;
   srslte::channel::args_t ul_channel_args;
 } phy_args_t;

srsue/hdr/phy/sync.h

@@ -202,9 +202,6 @@ private:
   uint32_t out_of_sync_cnt = 0;
   uint32_t in_sync_cnt     = 0;
 
-  const static uint32_t NOF_OUT_OF_SYNC_SF = 20;
-  const static uint32_t NOF_IN_SYNC_SF     = 10;
-
   // State machine for SYNC thread
   class sync_state
   {

srsue/src/main.cc

@@ -337,6 +337,22 @@ static int parse_args(all_args_t* args, int argc, char* argv[])
        bpo::value<float>(&args->phy.force_ul_amplitude)->default_value(0.0),
        "Forces the peak amplitude in the PUCCH, PUSCH and SRS (set 0.0 to 1.0, set to 0 or negative for disabling)")
 
+    ("phy.in_sync_rsrp_dbm_th",
+     bpo::value<float>(&args->phy.in_sync_rsrp_dbm_th)->default_value(-130.0f),
+     "RSRP threshold (in dBm) above which the UE considers to be in-sync")
+
+    ("phy.in_sync_snr_db_th",
+     bpo::value<float>(&args->phy.in_sync_snr_db_th)->default_value(1.0f),
+     "SNR threshold (in dB) above which the UE considers to be in-sync")
+
+    ("phy.nof_in_sync_events",
+     bpo::value<uint32_t>(&args->phy.nof_in_sync_events)->default_value(10),
+     "Number of PHY in-sync events before sending an in-sync event to RRC")
+
+    ("phy.nof_out_of_sync_events",
+     bpo::value<uint32_t>(&args->phy.nof_out_of_sync_events)->default_value(20),
+     "Number of PHY out-sync events before sending an out-sync event to RRC")
+
     /* general options */
     ("general.metrics_period_secs",
        bpo::value<float>(&args->general.metrics_period_secs)->default_value(1.0),

srsue/src/phy/sf_worker.cc

@@ -333,7 +333,7 @@ void sf_worker::update_measurements()
   }
 
   // Check in-sync / out-sync conditions
-  if (phy->avg_rsrp_dbm[0] > -130.0 && phy->avg_snr_db_cqi[0] > -6.0) {
+  if (phy->avg_rsrp_dbm[0] > phy->args->in_sync_rsrp_dbm_th && phy->avg_snr_db_cqi[0] > phy->args->in_sync_snr_db_th) {
     log_h->debug("SNR=%.1f dB, RSRP=%.1f dBm sync=in-sync from channel estimator\n",
                  phy->avg_snr_db_cqi[0],
                  phy->avg_rsrp_dbm[0]);

srsue/src/phy/sync.cc

@@ -681,7 +681,7 @@ void sync::in_sync()
 {
   in_sync_cnt++;
   // Send RRC in-sync signal after 100 ms consecutive subframes
-  if (in_sync_cnt == NOF_IN_SYNC_SF) {
+  if (in_sync_cnt == worker_com->args->nof_in_sync_events) {
     stack->in_sync();
     in_sync_cnt     = 0;
     out_of_sync_cnt = 0;
@@ -692,9 +692,9 @@ void sync::in_sync()
 void sync::out_of_sync()
 {
   // Send RRC out-of-sync signal after NOF_OUT_OF_SYNC_SF consecutive subframes
-  Info("Out-of-sync %d/%d\n", out_of_sync_cnt, NOF_OUT_OF_SYNC_SF);
+  Info("Out-of-sync %d/%d\n", out_of_sync_cnt, worker_com->args->nof_out_of_sync_events);
   out_of_sync_cnt++;
-  if (out_of_sync_cnt == NOF_OUT_OF_SYNC_SF) {
+  if (out_of_sync_cnt == worker_com->args->nof_out_of_sync_events) {
     Info("Sending to RRC\n");
     stack->out_of_sync();
     out_of_sync_cnt = 0;

srsue/ue.conf.example

@@ -306,6 +306,11 @@ enable = false
 # pdsch_8bit_decoder:    Use 8-bit for LLR representation and turbo decoder trellis computation (Experimental)
 # force_ul_amplitude:    Forces the peak amplitude in the PUCCH, PUSCH and SRS (set 0.0 to 1.0, set to 0 or negative for disabling)
 #
+# in_sync_rsrp_dbm_th:    RSRP threshold (in dBm) above which the UE considers to be in-sync
+# in_sync_snr_db_th:      SNR threshold (in dB) above which the UE considers to be in-sync
+# nof_in_sync_events:     Number of PHY in-sync events before sending an in-sync event to RRC
+# nof_out_of_sync_events: Number of PHY out-sync events before sending an out-sync event to RRC
+#
 #####################################################################
 [phy]
 #rx_gain_offset      = 62
@@ -331,6 +336,11 @@ enable = false
 #pdsch_8bit_decoder = false
 #force_ul_amplitude = 0
 
+#in_sync_rsrp_dbm_th    = -130.0
+#in_sync_snr_db_th      = 1.0
+#nof_in_sync_events     = 10
+#nof_out_of_sync_events = 20
+
 #####################################################################
 # General configuration options
 #