Make intra-frequency measurement period/length a parameter

lib/include/srslte/interfaces/ue_interfaces.h

@@ -494,6 +494,8 @@ typedef struct {
   bool sic_pss_enabled;
   float rx_gain_offset;
   bool pdsch_csi_enabled;
+  uint32_t intra_freq_meas_len_ms;
+  uint32_t intra_freq_meas_period_ms;
 } phy_args_t; 
 
 

srsue/hdr/phy/phch_recv.h

@@ -233,8 +233,6 @@ private:
     void write(uint32_t tti, cf_t *data, uint32_t nsamples);
   private:
     void run_thread();
-    const static int INTRA_FREQ_MEAS_LEN_MS    = 20;
-    const static int INTRA_FREQ_MEAS_PERIOD_MS = 200;
     const static int INTRA_FREQ_MEAS_PRIO      = DEFAULT_PRIORITY + 5;
 
     scell_recv         scell;

srsue/src/main.cc

@@ -203,6 +203,14 @@ void parse_args(all_args_t *args, int argc, char *argv[]) {
      bpo::value<string>(&args->expert.phy.equalizer_mode)->default_value("mmse"),
      "Equalizer mode")
 
+    ("expert.intra_freq_meas_len_ms",
+       bpo::value<uint32_t>(&args->expert.phy.intra_freq_meas_len_ms)->default_value(20),
+       "Duration of the intra-frequency neighbour cell measurement in ms.")
+
+    ("expert.intra_freq_meas_period_ms",
+       bpo::value<uint32_t>(&args->expert.phy.intra_freq_meas_period_ms)->default_value(200),
+       "Period of intra-frequency neighbour cell measurement in ms. Maximum as per 3GPP is 200 ms.")
+
     ("expert.cfo_is_doppler",
        bpo::value<bool>(&args->expert.phy.cfo_is_doppler)->default_value(false),
        "Assume detected CFO is doppler and correct the UL in the same direction. If disabled, the CFO is assumed"

srsue/src/phy/phch_recv.cc

@@ -1436,11 +1436,11 @@ void phch_recv::intra_measure::init(phch_common *common, rrc_interface_phy *rrc,
   receive_enabled = false;
 
   // Start scell
-  scell.init(log_h, common->args->sic_pss_enabled, INTRA_FREQ_MEAS_LEN_MS);
+  scell.init(log_h, common->args->sic_pss_enabled, common->args->intra_freq_meas_len_ms);
 
-  search_buffer = (cf_t*) srslte_vec_malloc(INTRA_FREQ_MEAS_LEN_MS*SRSLTE_SF_LEN_PRB(SRSLTE_MAX_PRB)*sizeof(cf_t));
+  search_buffer = (cf_t*) srslte_vec_malloc(common->args->intra_freq_meas_len_ms*SRSLTE_SF_LEN_PRB(SRSLTE_MAX_PRB)*sizeof(cf_t));
 
-  if (srslte_ringbuffer_init(&ring_buffer, sizeof(cf_t)*INTRA_FREQ_MEAS_LEN_MS*2*SRSLTE_SF_LEN_PRB(SRSLTE_MAX_PRB))) {
+  if (srslte_ringbuffer_init(&ring_buffer, sizeof(cf_t)*common->args->intra_freq_meas_len_ms*2*SRSLTE_SF_LEN_PRB(SRSLTE_MAX_PRB))) {
     return;
   }
 
@@ -1510,7 +1510,7 @@ void phch_recv::intra_measure::rem_cell(int pci) {
 
 void phch_recv::intra_measure::write(uint32_t tti, cf_t *data, uint32_t nsamples) {
   if (receive_enabled) {
-    if ((tti%INTRA_FREQ_MEAS_PERIOD_MS) == 0) {
+    if ((tti%common->args->intra_freq_meas_period_ms) == 0) {
       receiving   = true;
       receive_cnt = 0;
       measure_tti = tti;
@@ -1522,7 +1522,7 @@ void phch_recv::intra_measure::write(uint32_t tti, cf_t *data, uint32_t nsamples
         receiving = false;
       } else {
         receive_cnt++;
-        if (receive_cnt == INTRA_FREQ_MEAS_LEN_MS) {
+        if (receive_cnt == common->args->intra_freq_meas_len_ms) {
           tti_sync.increase();
           receiving = false; 
         }
@@ -1541,8 +1541,8 @@ void phch_recv::intra_measure::run_thread()
     if (running) {
 
       // Read data from buffer and find cells in it
-      srslte_ringbuffer_read(&ring_buffer, search_buffer, INTRA_FREQ_MEAS_LEN_MS*current_sflen*sizeof(cf_t));
+      srslte_ringbuffer_read(&ring_buffer, search_buffer, common->args->intra_freq_meas_len_ms*current_sflen*sizeof(cf_t));
-      int found_cells = scell.find_cells(search_buffer, common->rx_gain_offset, primary_cell, INTRA_FREQ_MEAS_LEN_MS, info);
+      int found_cells = scell.find_cells(search_buffer, common->rx_gain_offset, primary_cell, common->args->intra_freq_meas_len_ms, info);
       receiving = false;
 
       for (int i=0;i<found_cells;i++) {