Episys/david/sync between dl tti req and tx data req

openair1/SCHED_NR/fapi_nr_l1.c

@@ -266,13 +266,13 @@ void nr_schedule_response(NR_Sched_Rsp_t *Sched_INFO){
 
     if (number_ul_dci_pdu>0)
       oai_nfapi_ul_dci_req(UL_dci_req);
-    
-    if (number_dl_pdu>0)
-      oai_nfapi_dl_tti_req(DL_req);
 
     if (number_tx_data_pdu>0)
       oai_nfapi_tx_data_req(TX_req);
 
+    if (number_dl_pdu>0)
+      oai_nfapi_dl_tti_req(DL_req);
+
   } 
   
 }

openair1/SIMULATION/ETH_TRANSPORT/netlink_init.c

@@ -56,7 +56,7 @@ struct nlmsghdr *nas_nlh_rx = NULL;
 struct iovec nas_iov_tx;
 struct iovec nas_iov_rx = {nl_rx_buf, sizeof(nl_rx_buf)};
 
-int nas_sock_fd[MAX_MOBILES_PER_ENB];
+int nas_sock_fd[MAX_MOBILES_PER_ENB*2]; //Allocated for both LTE UE and NR UE.
 
 int nas_sock_mbms_fd;
 

openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c

@@ -501,6 +501,12 @@ int nr_ue_process_dci_indication_pdu(module_id_t module_id,int cc_id, int gNB_in
   NR_UE_MAC_INST_t *mac = get_mac_inst(module_id);
   dci_pdu_rel15_t *def_dci_pdu_rel15 = &mac->def_dci_pdu_rel15[dci->dci_format];
 
+  if ((dci->rnti != mac->crnti) && (dci->rnti != mac->ra.ra_rnti)) {
+      LOG_D(MAC,"We skip for the received dci indication rnti %4x != mac->crnti %4x  frame slot %4d.%2d  RA state %d\n",
+                    dci->rnti, mac->crnti, frame, slot, mac->ra.ra_state);
+      return 0;
+  }
+
   LOG_D(MAC,"Received dci indication (rnti %x,dci format %d,n_CCE %d,payloadSize %d,payload %llx)\n",
 	dci->rnti,dci->dci_format,dci->n_CCE,dci->payloadSize,*(unsigned long long*)dci->payloadBits);
   int8_t ret = nr_extract_dci_info(mac, dci->dci_format, dci->payloadSize, dci->rnti, (uint64_t *)dci->payloadBits, def_dci_pdu_rel15);

openair2/NR_UE_PHY_INTERFACE/NR_IF_Module.c

@@ -262,9 +262,11 @@ static void copy_dl_tti_req_to_dl_info(nr_downlink_indication_t *dl_info, nfapi_
                 for (int j = 0; j < num_dcis; j++)
                 {
                     nfapi_nr_dl_dci_pdu_t *dci_pdu_list = &pdu_list->pdcch_pdu.pdcch_pdu_rel15.dci_pdu[j];
-                    if (dci_pdu_list->RNTI != mac->crnti)
+                    if ((dci_pdu_list->RNTI != mac->crnti) && 
+                       ((dci_pdu_list->RNTI != mac->ra.ra_rnti) || mac->ra.RA_RAPID_found))
                     {
                       LOG_D(NR_MAC, "We are filtering PDCCH DCI pdu because RNTI doesnt match!\n");
+                      LOG_D(NR_MAC, "dci_pdu_list->RNTI (%x) != mac->crnti (%x)\n", dci_pdu_list->RNTI, mac->crnti);
                       continue;
                     }
                     fill_dl_info_with_pdcch(dl_info->dci_ind, dci_pdu_list, pdu_idx);
@@ -600,9 +602,16 @@ uint16_t sfn_slot_id;
 
 void *nrue_standalone_pnf_task(void *context)
 {
+  NR_UE_MAC_INST_t *mac = get_mac_inst(0);
   struct sockaddr_in server_address;
   socklen_t addr_len = sizeof(server_address);
   char buffer[NFAPI_MAX_PACKED_MESSAGE_SIZE];
+  char buffer_for_tx_data_req[NFAPI_MAX_PACKED_MESSAGE_SIZE];
+  ssize_t len_of_tx_data_req = 0;
+  int sfn_of_tx_data_req = 0;
+  int slot_of_tx_data_req = 0;
+  int sfn_of_dl_tti_req = 0;
+  int slot_of_dl_tti_req = 0;
   int sfn = 0;
   int slot = 0;
   int delta = 0;
@@ -698,6 +707,26 @@ void *nrue_standalone_pnf_task(void *context)
                   dl_tti_request.SFN, dl_tti_request.Slot);
             save_nr_measurement_info(&dl_tti_request);
             check_and_process_dci(&dl_tti_request, NULL, NULL, NULL);
+            if (mac->expected_dci)
+            { 
+                sfn_of_dl_tti_req = dl_tti_request.SFN;
+                slot_of_dl_tti_req = dl_tti_request.Slot;
+            }
+            if (len_of_tx_data_req > 0
+                && sfn_of_dl_tti_req == sfn_of_tx_data_req
+                && slot_of_dl_tti_req == slot_of_tx_data_req)
+            {
+                if (nfapi_nr_p7_message_unpack((void *)buffer_for_tx_data_req, len_of_tx_data_req, &tx_data_request,
+                                              sizeof(tx_data_request), NULL) < 0)
+                {
+                    LOG_E(NR_PHY, "Message tx_data_request failed to unpack\n");
+                    break;
+                }
+                LOG_I(NR_PHY, "Processing an NFAPI_NR_PHY_MSG_TYPE_TX_DATA_REQUEST message in SFN/slot %d %d. \n",
+                      tx_data_request.SFN, tx_data_request.Slot);
+                check_and_process_dci(NULL, &tx_data_request, NULL, NULL);
+                len_of_tx_data_req = 0;
+            }
             break;
           case NFAPI_NR_PHY_MSG_TYPE_TX_DATA_REQUEST:
             if (nfapi_nr_p7_message_unpack((void *)buffer, len, &tx_data_request,
@@ -708,7 +737,21 @@ void *nrue_standalone_pnf_task(void *context)
             }
             LOG_I(NR_PHY, "Received an NFAPI_NR_PHY_MSG_TYPE_TX_DATA_REQUEST message in SFN/slot %d %d. \n",
                   tx_data_request.SFN, tx_data_request.Slot);
-            check_and_process_dci(NULL, &tx_data_request, NULL, NULL);
+
+            if (tx_data_request.SFN == sfn_of_dl_tti_req && tx_data_request.Slot == slot_of_dl_tti_req
+                && (mac->expected_dci || mac->ra.ra_state <= WAIT_RAR))
+            {
+                check_and_process_dci(NULL, &tx_data_request, NULL, NULL);
+            }
+            else
+            {
+                len_of_tx_data_req = len;
+                sfn_of_tx_data_req = tx_data_request.SFN;
+                slot_of_tx_data_req = tx_data_request.Slot;
+                memcpy(buffer_for_tx_data_req, buffer, len);
+                LOG_I(NR_PHY, "Saved an NFAPI_NR_PHY_MSG_TYPE_TX_DATA_REQUEST message in SFN/slot %d %d. \n",
+                      tx_data_request.SFN, tx_data_request.Slot);
+            }
             break;
           case NFAPI_NR_PHY_MSG_TYPE_UL_DCI_REQUEST:
             if (nfapi_nr_p7_message_unpack((void *)buffer, len, &ul_dci_request,