adding fixes to embms channel estimation

lib/examples/pdsch_enodeb.c

@@ -728,7 +728,7 @@ int main(int argc, char **argv) {
 
   uint8_t mch_table[10];
   bzero(&mch_table[0], sizeof(uint8_t)*10);
-  if(mbsfn_area_id < -1) {
+  if(mbsfn_area_id > -1) {
     generate_mcch_table(mch_table, mbsfn_sf_mask);
   }
   N_id_2 = cell.id % 3;

lib/examples/pdsch_ue.c

@@ -380,7 +380,7 @@ int main(int argc, char **argv) {
   }
   uint8_t mch_table[10];
   bzero(&mch_table[0], sizeof(uint8_t)*10);
-  if(prog_args.mbsfn_area_id < -1) {
+  if(prog_args.mbsfn_area_id > -1) {
     generate_mcch_table(mch_table, prog_args.mbsfn_sf_mask);
   }
   if(prog_args.cpu_affinity > -1) {

lib/src/phy/ch_estimation/chest_dl.c

@@ -257,6 +257,10 @@ int srslte_chest_dl_set_cell(srslte_chest_dl_t *q, srslte_cell_t cell)
         fprintf(stderr, "Error initializing interpolator\n");
         return SRSLTE_ERROR;
       }
+     if (srslte_interp_linear_resize(&q->srslte_interp_lin_mbsfn, 6*q->cell.nof_prb, SRSLTE_NRE/6)) {
+        fprintf(stderr, "Error initializing interpolator\n");
+        return SRSLTE_ERROR;
+    }
 
     }
     ret = SRSLTE_SUCCESS;
@@ -386,7 +390,8 @@ static void interpolate_pilots(srslte_chest_dl_t *q, cf_t *pilot_estimates, cf_t
         fidx_offset = srslte_refsignal_mbsfn_fidx(l - 1);
         srslte_interp_linear_offset(&q->srslte_interp_lin_mbsfn, &pilot_estimates[(2*q->cell.nof_prb) + 6*q->cell.nof_prb*(l - 1)],
                                     &ce[srslte_refsignal_mbsfn_nsymbol(l - 1) * q->cell.nof_prb * SRSLTE_NRE],
-                                    fidx_offset, SRSLTE_NRE/6-fidx_offset);
+                                    fidx_offset, (fidx_offset)?0:1);
+        
       }
     } else {
       if (q->average_subframe) {