Check DL buf and Calculate the coeff to create UE_sched

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c

@@ -601,7 +601,6 @@ void pf_dl(module_id_t module_id,
     const float a = 0.0005f; // corresponds to 200ms window
     const uint32_t b = UE_info->mac_stats[UE_id].dlsch_current_bytes;
     thr_ue[UE_id] = (1 - a) * thr_ue[UE_id] + a * b;
-    LOG_I(MAC,"thr_ue[%d] %f\n",UE_id, thr_ue[UE_id]);
 
     /* retransmission */
     if (harq->round != 0) {
@@ -623,13 +622,37 @@ void pf_dl(module_id_t module_id,
       bool r = allocate_retransmission(module_id, rballoc_mask, &n_rb_sched, UE_info, UE_id);
     } else {
       /* Check DL buffer */
-
+      if (sched_ctrl->num_total_bytes == 0)
+        continue;
       /* Calculate coeff */
-
+      sched_ctrl->time_domain_allocation = 2;
+      sched_ctrl->mcsTableIdx = 0;
+      sched_ctrl->mcs = 9;
+      sched_ctrl->numDmrsCdmGrpsNoData = 1;
+      uint8_t N_PRB_DMRS =
+              getN_PRB_DMRS(sched_ctrl->active_bwp, sched_ctrl->numDmrsCdmGrpsNoData);
+      int nrOfSymbols = getNrOfSymbols(sched_ctrl->active_bwp,
+                                       sched_ctrl->time_domain_allocation);
+      uint32_t tbs = nr_compute_tbs(nr_get_Qm_dl(sched_ctrl->mcs, sched_ctrl->mcsTableIdx),
+                             nr_get_code_rate_dl(sched_ctrl->mcs, sched_ctrl->mcsTableIdx),
+                             1, //rbSize
+                             nrOfSymbols,
+                             N_PRB_DMRS, // FIXME // This should be multiplied by the
+                             // number of dmrs symbols
+                             0 /* N_PRB_oh, 0 for initialBWP */,
+                             0 /* tb_scaling */,
+                             1 /* nrOfLayers */)
+                      >> 3;
+      coeff_ue[UE_id] = (float) tbs / thr_ue[UE_id];
+      LOG_I(MAC,"b %d, thr_ue[%d] %f, tbs %d, coeff_ue[%d] %f\n",
+            b, UE_id, thr_ue[UE_id], tbs, UE_id, coeff_ue[UE_id]);
       /* Create UE_sched list for transmission*/
+      *uep = UE_id;
+      uep = &UE_sched.next[UE_id];
 
     }
   }
+  *uep = -1;
 
   NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
   const uint16_t bwpSize = NRRIV2BW(sched_ctrl->active_bwp->bwp_Common->genericParameters.locationAndBandwidth, 275);