SRSENB: fix channel emulator for multiple channels

srsenb/hdr/phy/phy_common.h

@@ -89,9 +89,19 @@ public:
 
     return ret;
   };
+  uint32_t get_nof_rf_channels()
+  {
+    uint32_t count = 0;
+
+    for (auto& cell : cell_list) {
+      count += cell.cell.nof_ports;
+    }
+
+    return count;
+  }
   double get_ul_freq_hz(uint32_t cc_idx)
   {
-    double ret = 0.0f;
+    double ret = 0.0;
 
     if (cc_idx < cell_list.size()) {
       ret = cell_list[cc_idx].ul_freq_hz;

srsenb/src/phy/phy_common.cc

@@ -68,7 +68,7 @@ bool phy_common::init(const phy_cell_cfg_list_t&   cell_list_,
 
   // Instantiate DL channel emulator
   if (params.dl_channel_args.enable) {
-    dl_channel = srslte::channel_ptr(new srslte::channel(params.dl_channel_args, 1));
+    dl_channel = srslte::channel_ptr(new srslte::channel(params.dl_channel_args, get_nof_rf_channels()));
     dl_channel->set_srate((uint32_t)srslte_sampling_freq_hz(cell_list[0].cell.nof_prb));
   }
 

srsenb/src/phy/txrx.cc

@@ -69,7 +69,8 @@ bool txrx::init(srslte::radio_interface_phy* radio_h_,
 
   // Instantiate UL channel emulator
   if (worker_com->params.ul_channel_args.enable) {
-    ul_channel = srslte::channel_ptr(new srslte::channel(worker_com->params.ul_channel_args, 1));
+    ul_channel =
+        srslte::channel_ptr(new srslte::channel(worker_com->params.ul_channel_args, worker_com->get_nof_rf_channels()));
   }
 
   start(prio_);