Added timeout to cuhd_recv

cuhd/lib/cuhd_imp.cpp

@@ -186,6 +186,7 @@ int cuhd_recv(void *h, void *data, uint32_t nsamples, bool blocking)
 {
   cuhd_handler *handler = static_cast < cuhd_handler * >(h);
   uhd::rx_metadata_t md;
+  uint32_t nof_packets = 0; 
   if (blocking) {
     int n = 0, p;
     complex_t *data_c = (complex_t *) data;
@@ -200,7 +201,10 @@ int cuhd_recv(void *h, void *data, uint32_t nsamples, bool blocking)
         std::cout << "\nError code: " << md.to_pp_string() << "\n\n";
       }
 #endif
-    } while (n < nsamples && md.error_code == uhd::rx_metadata_t::ERROR_CODE_NONE);
+      nof_packets++;
+    } while (n < nsamples                                              && 
+             md.error_code == uhd::rx_metadata_t::ERROR_CODE_NONE      && 
+             nof_packets < 10);
     return nsamples;
   } else {
     return handler->rx_stream->recv(data, nsamples, md, 0.0);

lte/examples/cell_measurement.c

@@ -49,7 +49,7 @@ float gain_offset = B210_DEFAULT_GAIN_CORREC;
 cell_search_cfg_t cell_detect_config = {
   5000, // maximum number of frames to receive for MIB decoding
   50, // maximum number of frames to receive for PSS correlation 
-  9.0 // early-stops cell detection if mean PSR is above this value 
+  16.0 // early-stops cell detection if mean PSR is above this value 
 };
 
 /**********************************************************************

lte/examples/pdsch_ue.c

@@ -56,7 +56,7 @@ float gain_offset = B210_DEFAULT_GAIN_CORREC;
 cell_search_cfg_t cell_detect_config = {
   5000,
   100, // nof_frames_total 
-  4.0 // threshold
+  16.0 // threshold
 };
 
 /**********************************************************************

lte/phy/lib/ch_estimation/src/chest_dl.c

@@ -118,7 +118,7 @@ int chest_dl_init(chest_dl_t *q, lte_cell_t cell)
     //float f[3]={0.15, 0.7, 0.15};
     //chest_dl_set_filter_freq(q, f, 3);
 
-    float f[5]={0.05, 0.15, 0.6, 0.15, 0.05};
+    float f[5]={0.02, 0.18, 0.6, 0.18, 0.02};
     chest_dl_set_filter_freq(q, f, 5);
     
     float t[2]={0.1, 0.9};