taking into account pucch2 acknack for mac

nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h

@@ -1539,7 +1539,7 @@ typedef struct
 }nfapi_nr_uci_pucch_pdu_format_2_3_4_t;
 
 typedef enum {
-  NFAPI_NR_UCI_PDCCH_PDU_TYPE  = 0,
+  NFAPI_NR_UCI_PUSCH_PDU_TYPE  = 0,
   NFAPI_NR_UCI_FORMAT_0_1_PDU_TYPE  = 1,
   NFAPI_NR_UCI_FORMAT_2_3_4_PDU_TYPE = 2,
 } nfapi_nr_uci_pdu_type_e;

openair2/NR_PHY_INTERFACE/NR_IF_Module.c

@@ -86,10 +86,9 @@ void handle_nr_uci(NR_UL_IND_t *UL_info, NR_UE_sched_ctrl_t *sched_ctrl, int tar
 
   for (int i = 0; i < num_ucis; i++) {
     switch (uci_list[i].pdu_type) {
-      case NFAPI_NR_UCI_PDCCH_PDU_TYPE: break;
-
+      case NFAPI_NR_UCI_PUSCH_PDU_TYPE:
+        break;
       case NFAPI_NR_UCI_FORMAT_0_1_PDU_TYPE: {
-        //if (get_softmodem_params()->phy_test == 0) {
         nfapi_nr_uci_pucch_pdu_format_0_1_t *uci_pdu = &uci_list[i].pucch_pdu_format_0_1;
         // handle harq
         int harq_idx_s = 0;
@@ -126,11 +125,37 @@ void handle_nr_uci(NR_UL_IND_t *UL_info, NR_UE_sched_ctrl_t *sched_ctrl, int tar
             }
           }
         }
-        //}
         break;
       }
-
-      case NFAPI_NR_UCI_FORMAT_2_3_4_PDU_TYPE: break;
+      case NFAPI_NR_UCI_FORMAT_2_3_4_PDU_TYPE: {
+        nfapi_nr_uci_pucch_pdu_format_2_3_4_t *uci_pdu = &uci_list[i].pucch_pdu_format_2_3_4;
+        int harq_idx_s = 0;
+        int acknack;
+        // tpc (power control)
+        sched_ctrl->tpc1 = nr_get_tpc(target_snrx10,uci_pdu->ul_cqi,30);
+        // iterate over received harq bits
+        for (int harq_bit = 0; harq_bit < uci_pdu->harq.harq_bit_len; harq_bit++) {
+          acknack = ((uci_pdu->harq.harq_payload[harq_bit>>3])>>harq_bit)&0x01;
+          for (int harq_idx = harq_idx_s; harq_idx < NR_MAX_NB_HARQ_PROCESSES-1; harq_idx++) {
+            // if the gNB received ack with a good confidence or if the max harq rounds was reached
+            if ((UL_info->slot-1) == sched_ctrl->harq_processes[harq_idx].feedback_slot) {
+              // TODO add some confidence level for when there is no CRC
+              if (((uci_pdu->harq.harq_crc != 1) && acknack) ||
+                  (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds)) {
+                // toggle NDI and reset round
+                sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
+                sched_ctrl->harq_processes[harq_idx].round = 0;
+              }
+              else
+                sched_ctrl->harq_processes[harq_idx].round++;
+              sched_ctrl->harq_processes[harq_idx].is_waiting = 0;
+              harq_idx_s = harq_idx + 1;
+              break;
+            }
+          }
+        }
+        break;
+      }
     }
   }