Add dlsch_current_bytes and Calculate throughput

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c

@@ -435,6 +435,8 @@ bool allocate_retransmission(module_id_t module_id,
   return true;
 }
 
+float thr_ue[MAX_MOBILES_PER_GNB];
+
 void pf_dl(module_id_t module_id,
            frame_t frame,
            sub_frame_t slot,
@@ -445,6 +447,10 @@ void pf_dl(module_id_t module_id,
 
   const int UE_id = 0;
   NR_UE_info_t *UE_info = &RC.nrmac[module_id]->UE_info;
+  float coeff_ue[MAX_MOBILES_PER_GNB];
+  // UEs that could be scheduled
+  int ue_array[MAX_MOBILES_PER_GNB];
+  NR_list_t UE_sched = { .head = -1, .next = ue_array, .tail = -1, .len = MAX_MOBILES_PER_GNB };
 
   /* Loop UE_info->list to check retransmission */
   for (int UE_id = UE_list->head; UE_id >= 0; UE_id = UE_list->next[UE_id]) {
@@ -456,7 +462,10 @@ void pf_dl(module_id_t module_id,
     const rnti_t rnti = UE_info->rnti[UE_id];
 
     /* Calculate Throughput */
-
+    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 (sched_ctrl->dl_harq_pid >= 0) {
@@ -653,6 +662,7 @@ void nr_schedule_ue_spec(module_id_t module_id,
   NR_list_t *UE_list = &UE_info->list;
   for (int UE_id = UE_list->head; UE_id >= 0; UE_id = UE_list->next[UE_id]) {
     NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
+    UE_info->mac_stats[UE_id].dlsch_current_bytes = 0;
 
     /* update TA and set ta_apply every 10 frames.
      * Possible improvement: take the periodicity from input file.
@@ -1068,6 +1078,7 @@ void nr_schedule_ue_spec(module_id_t module_id,
       }
 
       UE_info->mac_stats[UE_id].dlsch_total_bytes += TBS;
+      UE_info->mac_stats[UE_id].dlsch_current_bytes = TBS;
       UE_info->mac_stats[UE_id].lc_bytes_tx[lcid] += dlsch_total_bytes;
 
       retInfo->rbSize = sched_ctrl->rbSize;

openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h

@@ -475,6 +475,7 @@ typedef struct {
   int dlsch_rounds[8];
   int dlsch_errors;
   int dlsch_total_bytes;
+  int dlsch_current_bytes;
   int ulsch_rounds[8];
   int ulsch_errors;
   int ulsch_total_bytes_scheduled;