Create gNB_scheduler_SRS.c

cmake_targets/CMakeLists.txt

@@ -2120,6 +2120,7 @@ set (MAC_NR_SRC
   ${NR_GNB_MAC_DIR}/gNB_scheduler_phytest.c
   ${NR_GNB_MAC_DIR}/gNB_scheduler_uci.c
   ${NR_GNB_MAC_DIR}/gNB_scheduler_RA.c
+  ${NR_GNB_MAC_DIR}/gNB_scheduler_SRS.c
  )
 
 

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c

@@ -397,6 +397,8 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
 
   nr_schedule_pucch(module_idP, frame, slot);
 
+  nr_schedule_srs(module_idP, frame, slot);
+
   stop_meas(&RC.nrmac[module_idP]->eNB_scheduler);
   
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_gNB_DLSCH_ULSCH_SCHEDULER,VCD_FUNCTION_OUT);

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_SRS.c

+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+/*! \file     gNB_scheduler_SRS.c
+ * \brief     primitives used for sounding reference signal
+ * \date      2021
+ */
+
+#include "platform_types.h"
+
+/* MAC */
+#include "nr_mac_gNB.h"
+#include "NR_MAC_COMMON/nr_mac_extern.h"
+
+/* Utils */
+#include "common/utils/LOG/vcd_signal_dumper.h"
+
+void nr_schedule_srs_aperiodic(module_id_t module_idP,
+                               frame_t frameP,
+                               sub_frame_t slotP,
+                               NR_SRS_ResourceSet_t *srs_resource_set) {
+  LOG_W(NR_PHY, "Aperiodic SRS scheduling is not implemented yet!\n");
+}
+
+void nr_schedule_srs_semi_persistent(module_id_t module_idP,
+                               frame_t frameP,
+                               sub_frame_t slotP,
+                               NR_SRS_ResourceSet_t *srs_resource_set) {
+  LOG_W(NR_PHY, "Semi-persistent SRS scheduling is not implemented yet!\n");
+}
+
+void nr_schedule_srs_periodic(module_id_t module_idP,
+                                     frame_t frameP,
+                                     sub_frame_t slotP,
+                                     NR_SRS_ResourceSet_t *srs_resource_set) {
+  LOG_W(NR_PHY, "Periodic SRS scheduling is not implemented yet!\n");
+}
+
+void nr_schedule_srs(module_id_t module_idP, frame_t frameP, sub_frame_t slotP) {
+
+  gNB_MAC_INST *mac = RC.nrmac[module_idP];
+
+  for (int UE_id = 0; UE_id < MAX_MOBILES_PER_GNB; UE_id++) {
+    NR_CellGroupConfig_t *cg = mac->UE_info.CellGroup[UE_id];
+    NR_BWP_UplinkDedicated_t *ubwpd = NULL;
+    if (cg &&
+        cg->spCellConfig &&
+        cg->spCellConfig->spCellConfigDedicated &&
+        cg->spCellConfig->spCellConfigDedicated->uplinkConfig &&
+        cg->spCellConfig->spCellConfigDedicated->uplinkConfig->initialUplinkBWP) {
+      ubwpd = cg->spCellConfig->spCellConfigDedicated->uplinkConfig->initialUplinkBWP;
+    } else {
+      continue;
+    }
+
+    NR_SRS_Config_t *srs_Config = ubwpd->srs_Config->choice.setup;
+
+    for(int rs = 0; rs < srs_Config->srs_ResourceSetToAddModList->list.count; rs++) {
+      NR_SRS_ResourceSet_t *srs_resource_set = srs_Config->srs_ResourceSetToAddModList->list.array[rs];
+      switch (srs_resource_set->resourceType.present) {
+        case NR_SRS_ResourceSet__resourceType_PR_aperiodic:
+          nr_schedule_srs_aperiodic(module_idP, frameP, slotP, srs_resource_set);
+          break;
+        case NR_SRS_ResourceSet__resourceType_PR_semi_persistent:
+          nr_schedule_srs_semi_persistent(module_idP, frameP, slotP, srs_resource_set);
+          break;
+        case NR_SRS_ResourceSet__resourceType_PR_periodic:
+          nr_schedule_srs_periodic(module_idP, frameP, slotP, srs_resource_set);
+          break;
+        default:
+          break;
+      }
+    }
+  }
+}
\ No newline at end of file

openair2/LAYER2/NR_MAC_gNB/mac_proto.h

@@ -190,6 +190,8 @@ void nr_schedule_pucch(int Mod_idP,
                        frame_t frameP,
                        sub_frame_t slotP);
 
+void nr_schedule_srs(module_id_t module_idP, frame_t frameP, sub_frame_t slotP);
+
 void nr_csirs_scheduling(int Mod_idP,
                          frame_t frame,
                          sub_frame_t slot,