Merge remote-tracking branch 'origin/NR_UE_acknack' into integration_2021_wk49_a

ci-scripts/conf_files/gnb.band261.tm1.32PRB.usrpn300.conf

@@ -24,6 +24,7 @@ gNBs =
     ssb_SubcarrierOffset                                      = 0;
     pdsch_AntennaPorts                                        = 1;
     pusch_AntennaPorts                                        = 1;
+    min_rxtxtime_pdsch                                        = 6;
 	
     servingCellConfigCommon = (
     {

ci-scripts/conf_files/gnb.band78.sa.fr1.106PRB.usrpn310.conf

@@ -35,6 +35,7 @@ gNBs =
     ssb_SubcarrierOffset                                      = 0;
     pdsch_AntennaPorts                                        = 1;
     pusch_AntennaPorts                                        = 1;
+    min_rxtxtime_pdsch                                        = 6;
     ul_prbblacklist                                           = "51,52,53,54"
 
      pdcch_ConfigSIB1 = (
@@ -143,7 +144,7 @@ gNBs =
 
         initialULBWPk2_1                      = 6;  # used for mixed slot
         initialULBWPmappingType_1             = 1;
-        initialULBWPstartSymbolAndLength_1    = 52; # this is SS=10 L=4
+        initialULBWPstartSymbolAndLength_1    = 38; # this is SS=10 L=3
 
         initialULBWPk2_2                      = 7;  # used for Msg.3 during RA
         initialULBWPmappingType_2             = 1;

ci-scripts/conf_files/gnb.band78.tm1.106PRB.usrpn300.conf

@@ -21,9 +21,10 @@ gNBs =
 
     ////////// Physical parameters:
 
-    ssb_SubcarrierOffset                                      = 0;
-    pdsch_AntennaPorts                                        = 1;
-    pusch_AntennaPorts                                        = 1;
+    ssb_SubcarrierOffset = 0;
+    pdsch_AntennaPorts = 1;
+    pusch_AntennaPorts = 1;
+    min_rxtxtime_pdsch = 6;
 
     servingCellConfigCommon = (
     {
@@ -124,7 +125,7 @@ gNBs =
 
         initialULBWPk2_1                      = 6;  # used for mixed slot
         initialULBWPmappingType_1             = 1;
-        initialULBWPstartSymbolAndLength_1    = 69; # this is SS=10 L=2
+        initialULBWPstartSymbolAndLength_1    = 38; # this is SS=10 L=3
 
         initialULBWPk2_2                      = 7;  # used for Msg.3 during RA
         initialULBWPmappingType_2             = 1;

openair1/PHY/NR_TRANSPORT/nr_dci.c

@@ -135,8 +135,8 @@ void nr_generate_dci(PHY_VARS_gNB *gNB,
 						   dci_pdu->AggregationLevel,
 						   0,NULL);
     polar_encoder_fast((uint64_t*)dci_pdu->Payload, (void*)encoder_output, n_RNTI,1,currentPtr);
-#if DEBUG_CHANNEL_CODING
-    printf("polar rnti %x,length %d, L %d\n",n_RNTI, dci_pdu->PayloadSizeBits,dci_pdu->AggregationLevel);
+#ifdef DEBUG_CHANNEL_CODING
+    printf("polar rnti %x,length %d, L %d\n",n_RNTI, dci_pdu->PayloadSizeBits,pdcch_pdu_rel15->dci_pdu->AggregationLevel);
     printf("DCI PDU: [0]->0x%lx \t [1]->0x%lx\n",
 	   ((uint64_t*)dci_pdu->Payload)[0], ((uint64_t*)dci_pdu->Payload)[1]);
     printf("Encoded Payload (length:%d dwords):\n", encoded_length>>5);

openair1/SCHED_NR_UE/fapi_nr_ue_l1.c

@@ -105,7 +105,7 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
           dlsch0->active = 1;
           dlsch0->rnti = dl_config->dl_config_list[i].dlsch_config_pdu.rnti;
 
-          LOG_D(PHY,"current_harq_pid = %d\n", current_harq_pid);
+          LOG_D(PHY,"slot %d current_harq_pid = %d\n",slot, current_harq_pid);
 
           NR_DL_UE_HARQ_t *dlsch0_harq = dlsch0->harq_processes[current_harq_pid];
           if (dlsch0_harq){
@@ -131,9 +131,10 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
             dlsch0_harq->mcs_table=dlsch_config_pdu->mcs_table;
             downlink_harq_process(dlsch0_harq, dlsch0->current_harq_pid, dlsch_config_pdu->ndi, dlsch_config_pdu->rv, dlsch0->rnti_type);
             if (dlsch0_harq->status != ACTIVE) {
-              // dlsch0_harq->status not ACTIVE may be due to false retransmission. Reset the 
-              // following flag to skip PDSCH procedures in that case.
+              // dlsch0_harq->status not ACTIVE due to false retransmission
+              // Reset the following flag to skip PDSCH procedures in that case and retrasmit harq status
               dlsch0->active = 0;
+              update_harq_status(module_id,dlsch0->current_harq_pid,dlsch0_harq->ack);
             }
             /* PTRS */
             dlsch0_harq->PTRSFreqDensity = dlsch_config_pdu->PTRSFreqDensity;

openair1/SCHED_NR_UE/fapi_nr_ue_l1.h

@@ -43,5 +43,6 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response);
    \param scheduled_response including transmission config(dl_config, ul_config) and data transmission (tx_req)*/
 int8_t nr_ue_phy_config_request(nr_phy_config_t *phy_config);
 
+void update_harq_status(module_id_t module_id, uint8_t harq_pid, uint8_t ack_nack);
 
 #endif

openair1/SCHED_NR_UE/harq_nr.c

@@ -331,7 +331,6 @@ void init_downlink_harq_status(NR_DL_UE_HARQ_t *dl_harq)
 
 void downlink_harq_process(NR_DL_UE_HARQ_t *dl_harq, int harq_pid, int ndi, int rv, uint8_t rnti_type) {
 
-
   if (rnti_type == _SI_RNTI_ ||
       rnti_type == _P_RNTI_ ||
       rnti_type == _RA_RNTI_) {
@@ -351,38 +350,38 @@ void downlink_harq_process(NR_DL_UE_HARQ_t *dl_harq, int harq_pid, int ndi, int
         break;
       case 1:
         dl_harq->round = 2;
+        dl_harq->status = ACTIVE;
         dl_harq->first_rx = 0;
         if (dl_harq->DCINdi != ndi) {
           LOG_E(PHY,"Missed previous DCI detections. NDI toggled but rv %d does not correspond to first reception\n",rv);
-          dl_harq->status = ACTIVE;
           dl_harq->first_rx = 1;
           dl_harq->DCINdi = ndi;
         }
-        else if (dl_harq->ack)
+        else if (dl_harq->ack == 1)
           dl_harq->status = SCH_IDLE;
         break;
       case 2:
         dl_harq->round = 1;
+        dl_harq->status = ACTIVE;
         dl_harq->first_rx = 0;
         if (dl_harq->DCINdi != ndi) {
           LOG_E(PHY,"Missed previous DCI detections. NDI toggled but rv %d does not correspond to first reception\n",rv);
-          dl_harq->status = ACTIVE;
           dl_harq->first_rx = 1;
           dl_harq->DCINdi = ndi;
         }
-        else if (dl_harq->ack)
+        else if (dl_harq->ack == 1)
           dl_harq->status = SCH_IDLE;
         break;
       case 3:
         dl_harq->round = 3;
+        dl_harq->status = ACTIVE;
         dl_harq->first_rx = 0;
         if (dl_harq->DCINdi != ndi) {
           LOG_E(PHY,"Missed previous DCI detections. NDI toggled but rv %d does not correspond to first reception\n",rv);
-          dl_harq->status = ACTIVE;
           dl_harq->first_rx = 1;
           dl_harq->DCINdi = ndi;
         }
-        else if (dl_harq->ack)
+        else if (dl_harq->ack == 1)
           dl_harq->status = SCH_IDLE;
         break;
       default:

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

@@ -1861,11 +1861,10 @@ int phy_procedures_nrUE_RX(PHY_VARS_NR_UE *ue,
 
     VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC_RA, VCD_FUNCTION_OUT);
   }
-    
   // do procedures for C-RNTI
   if (ue->dlsch[proc->thread_id][gNB_id][0]->active == 1) {
 
-    LOG_D(PHY, "DLSCH data reception at nr_slot_rx: %d \n \n", nr_slot_rx);
+    LOG_D(PHY, "DLSCH data reception at nr_slot_rx: %d\n", nr_slot_rx);
     VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC, VCD_FUNCTION_IN);
 
     start_meas(&ue->dlsch_procedures_stat[proc->thread_id]);

openair1/SIMULATION/NR_PHY/dlsim.c

@@ -768,7 +768,7 @@ int main(int argc, char **argv)
 
   prepare_scd(scd);
 
-  fill_default_secondaryCellGroup(scc, scd, secondaryCellGroup, 0, 1, n_tx, 0, 0, 0);
+  fill_default_secondaryCellGroup(scc, scd, secondaryCellGroup, 0, 1, n_tx, 6, 0, 0, 0);
 
   /* RRC parameter validation for secondaryCellGroup */
   fix_scd(scd);

openair1/SIMULATION/NR_PHY/ulsim.c

@@ -713,7 +713,7 @@ int main(int argc, char **argv)
 
   prepare_scd(scd);
 
-  fill_default_secondaryCellGroup(scc, scd, secondaryCellGroup, 0, 1, n_tx, 0, 0, 0);
+  fill_default_secondaryCellGroup(scc, scd, secondaryCellGroup, 0, 1, n_tx, 0, 0, 0, 0);
 
   // xer_fprint(stdout, &asn_DEF_NR_CellGroupConfig, (const void*)secondaryCellGroup);
 

openair2/GNB_APP/gnb_config.c

@@ -1110,6 +1110,8 @@ void RCconfig_NRRRC(MessageDef *msg_p, uint32_t i, gNB_RRC_INST *rrc) {
         printf("minTXRXTIMEpdsch %d\n",*GNBParamList.paramarray[i][GNB_MINRXTXTIMEPDSCH_IDX].iptr);
         NRRRC_CONFIGURATION_REQ (msg_p).minRXTXTIMEpdsch = *GNBParamList.paramarray[i][GNB_MINRXTXTIMEPDSCH_IDX].iptr;
         NRRRC_CONFIGURATION_REQ (msg_p).sib1_tda = *GNBParamList.paramarray[i][GNB_SIB1_TDA_IDX].iptr;
+        printf("minTXRXTIMEpdsch %d\n",*GNBParamList.paramarray[i][GNB_MINRXTXTIMEPDSCH_IDX].iptr);
+        NRRRC_CONFIGURATION_REQ (msg_p).minRXTXTIMEpdsch = *GNBParamList.paramarray[i][GNB_MINRXTXTIMEPDSCH_IDX].iptr;
         printf("Do CSI-RS %d\n",*GNBParamList.paramarray[i][GNB_DO_CSIRS_IDX].iptr);
         NRRRC_CONFIGURATION_REQ (msg_p).do_CSIRS = *GNBParamList.paramarray[i][GNB_DO_CSIRS_IDX].iptr;
         NRRRC_CONFIGURATION_REQ (msg_p).scc = scc;

openair2/GNB_APP/gnb_paramdef.h

@@ -149,7 +149,7 @@ typedef enum {
 {GNB_CONFIG_STRING_DOCSIRS,                      NULL,   0,            iptr:NULL,   defintval:0,                 TYPE_INT,       0},  \
 {GNB_CONFIG_STRING_NRCELLID,                     NULL,   0,            u64ptr:NULL, defint64val:1,               TYPE_UINT64,    0},  \
 {GNB_CONFIG_STRING_MINRXTXTIMEPDSCH,             NULL,   0,            iptr:NULL,   defintval:2,                 TYPE_INT,       0},  \
-{GNB_CONFIG_STRING_ULPRBBLACKLIST,               NULL,   0,            strptr:NULL, defstrval:"",                 TYPE_STRING,   0}   \
+{GNB_CONFIG_STRING_ULPRBBLACKLIST,               NULL,   0,            strptr:NULL, defstrval:"",                TYPE_STRING,    0}   \
 }
 
 #define GNB_GNB_ID_IDX                  0

openair2/LAYER2/NR_MAC_UE/mac_proto.h

@@ -299,9 +299,6 @@ void set_harq_status(NR_UE_MAC_INST_t *mac,
                      frame_t frame,
                      int slot);
 
-void update_harq_status(nr_downlink_indication_t *dl_info,
-                        int pdu_id);
-
 uint8_t get_downlink_ack(NR_UE_MAC_INST_t *mac,
                          frame_t frame,
                          int slot,

openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c

@@ -1232,14 +1232,17 @@ int8_t nr_ue_process_dci(module_id_t module_id, int cc_id, uint8_t gNB_index, fr
     uint8_t feedback_ti =
       ubwpd->pucch_Config->choice.setup->dl_DataToUL_ACK->list.array[dci->pdsch_to_harq_feedback_timing_indicator.val][0];
 
-   // set the harq status at MAC for feedback
-   set_harq_status(mac,dci->pucch_resource_indicator,
-                   dci->harq_pid,
-                   dlsch_config_pdu_1_1->accumulated_delta_PUCCH,
-                   feedback_ti,
-                   dci->dai[0].val,
-                   dci_ind->n_CCE,dci_ind->N_CCE,0,
-                   frame,slot);
+    AssertFatal(feedback_ti>=DURATION_RX_TO_TX,"PDSCH to HARQ feedback time (%d) cannot be less than DURATION_RX_TO_TX (%d)\n",
+                feedback_ti,DURATION_RX_TO_TX);
+
+    // set the harq status at MAC for feedback
+    set_harq_status(mac,dci->pucch_resource_indicator,
+                    dci->harq_pid,
+                    dlsch_config_pdu_1_1->accumulated_delta_PUCCH,
+                    feedback_ti,
+                    dci->dai[0].val,
+                    dci_ind->n_CCE,dci_ind->N_CCE,
+                    0, frame,slot);
 
     dl_config->dl_config_list[dl_config->number_pdus].pdu_type = FAPI_NR_DL_CONFIG_TYPE_DLSCH;
     LOG_D(MAC,"(nr_ue_procedures.c) pdu_type=%d\n\n",dl_config->dl_config_list[dl_config->number_pdus].pdu_type);
@@ -1331,25 +1334,6 @@ void set_harq_status(NR_UE_MAC_INST_t *mac,
 }
 
 
-void update_harq_status(nr_downlink_indication_t *dl_info, int pdu_id) {
-
-  NR_UE_MAC_INST_t *mac = get_mac_inst(dl_info->module_id);
-  uint8_t harq_pid = dl_info->rx_ind->rx_indication_body[pdu_id].pdsch_pdu.harq_pid;
-  NR_UE_HARQ_STATUS_t *current_harq = &mac->dl_harq_info[harq_pid];
-
-  if (current_harq->active) {
-    current_harq->ack = dl_info->rx_ind->rx_indication_body[pdu_id].pdsch_pdu.ack_nack;
-    current_harq->ack_received = true;
-    LOG_D(PHY,"Updating harq_status for harq_id %d,ack/nak %d\n",harq_pid,current_harq->ack);
-
-  }
-  else {
-    //shouldn't get here
-    LOG_E(MAC, "Trying to process acknack for an inactive harq process (%d)\n", harq_pid);
-  }
-}
-
-
 void nr_ue_configure_pucch(NR_UE_MAC_INST_t *mac,
                            int slot,
                            uint16_t rnti,
@@ -2123,7 +2107,7 @@ uint8_t get_downlink_ack(NR_UE_MAC_INST_t *mac,
   uint32_t V_temp = 0;
   uint32_t V_temp2 = 0;
   int O_ACK = 0;
-  int o_ACK = 0;
+  uint8_t o_ACK = 0;
   int O_bit_number_cw0 = 0;
   int O_bit_number_cw1 = 0;
 
@@ -2151,6 +2135,7 @@ uint8_t get_downlink_ack(NR_UE_MAC_INST_t *mac,
     }
 
     o_ACK = o_ACK | (ack_data[0][m] << O_bit_number_cw0);
+    LOG_D(MAC,"m %d bit number %d o_ACK %d\n",m,O_bit_number_cw0,o_ACK);
   }
 
   if (V_temp2 < V_temp) {
@@ -2169,8 +2154,11 @@ uint8_t get_downlink_ack(NR_UE_MAC_INST_t *mac,
     return (0);
   }
 
+  reverse_n_bits(&o_ACK,number_harq_feedback);
   pucch->ack_payload = o_ACK;
 
+  LOG_D(MAC,"frame %d slot %d pucch acknack payload %d\n",frame,slot,o_ACK);
+
   return(number_harq_feedback);
 }
 

openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c

@@ -2153,7 +2153,8 @@ void nr_ue_pucch_scheduler(module_id_t module_idP, frame_t frameP, int slotP, in
 
   if (N_UCI > 0) {
 
-    pucch->resource_set_id = find_pucch_resource_set(mac, N_UCI);
+    LOG_D(NR_MAC,"%d.%d configure pucch, O_SR %d, O_ACK %d, O_CSI %d\n",frameP,slotP,O_SR,O_ACK,O_CSI);
+    pucch->resource_set_id = find_pucch_resource_set(mac, O_ACK + O_CSI);
     select_pucch_resource(mac, pucch);
     fapi_nr_ul_config_request_t *ul_config = get_ul_config_request(mac, slotP);
     pthread_mutex_lock(&ul_config->mutex_ul_config);

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c

@@ -373,7 +373,7 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
     schedule_nr_prach(module_idP, f, s);
   }
 
-    // This schedule SR
+  // This schedule SR
   nr_sr_reporting(module_idP, frame, slot);
 
   // Schedule CSI-RS transmission

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c

@@ -753,7 +753,7 @@ void pf_dl(module_id_t module_id,
 
     /* Find PUCCH occasion: if it fails, undo CCE allocation (undoing PUCCH
     * allocation after CCE alloc fail would be more complex) */
-    const int alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot, -1,0);
+    const int alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot, -1, 0);
     if (alloc<0) {
       LOG_D(NR_MAC,
             "%s(): could not find PUCCH for UE %d/%04x@%d.%d\n",

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c

@@ -348,7 +348,7 @@ void nr_preprocessor_phytest(module_id_t module_id,
               __func__,
               UE_id);
 
-  const int alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot, -1,0);
+  const int alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot, -1, 0);
   if (alloc < 0) {
     LOG_D(MAC,
           "%s(): could not find PUCCH for UE %d/%04x@%d.%d\n",

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c

@@ -2203,6 +2203,7 @@ void get_pdsch_to_harq_feedback(int Mod_idP,
 }
 
 
+
 void nr_csirs_scheduling(int Mod_idP,
                          frame_t frame,
                          sub_frame_t slot,

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c

@@ -1099,6 +1099,7 @@ void handle_nr_uci_pucch_0_1(module_id_t mod_id,
       DevAssert(harq->is_waiting);
       const int8_t pid = sched_ctrl->feedback_dl_harq.head;
       remove_front_nr_list(&sched_ctrl->feedback_dl_harq);
+      LOG_D(NR_MAC,"bit %d pid %d ack/nack %d\n",harq_bit,pid,harq_value);
       handle_dl_harq(mod_id, UE_id, pid, harq_value == 0 && harq_confidence == 0);
       if (harq_confidence == 1)  UE_info->mac_stats[UE_id].pucch0_DTX++;
     }
@@ -1187,7 +1188,7 @@ int nr_acknack_scheduling(int mod_id,
   const int nr_mix_slots = tdd->nrofDownlinkSymbols != 0 || tdd->nrofUplinkSymbols != 0;
   const int nr_slots_period = tdd->nrofDownlinkSlots + tdd->nrofUplinkSlots + nr_mix_slots;
   const int first_ul_slot_tdd = tdd->nrofDownlinkSlots + nr_slots_period * (slot / nr_slots_period);
-  const int first_ul_slot_period = first_ul_slot_tdd%nr_slots_period;
+  const int first_ul_slot_period = tdd->nrofDownlinkSlots;
   const int CC_id = 0;
   NR_sched_pucch_t *csi_pucch;
 
@@ -1236,11 +1237,11 @@ int nr_acknack_scheduling(int mod_id,
         && !csi_pucch->simultaneous_harqcsi) {
       nr_fill_nfapi_pucch(mod_id, frame, slot, csi_pucch, UE_id);
       memset(csi_pucch, 0, sizeof(*csi_pucch));
-      pucch->frame = s == n_slots_frame - 1 ? (f + 1) % 1024 : f;
-      if(((s + 1)%nr_slots_period) == 0)
-        pucch->ul_slot = (s + 1 + first_ul_slot_period) % n_slots_frame;
+      pucch->frame = pucch->ul_slot == n_slots_frame - 1 ? (pucch->frame + 1) % 1024 : pucch->frame;
+      if(((pucch->ul_slot + 1)%nr_slots_period) == 0)
+        pucch->ul_slot = (pucch->ul_slot + 1 + first_ul_slot_period) % n_slots_frame;
       else
-        pucch->ul_slot = (s + 1) % n_slots_frame;
+        pucch->ul_slot = (pucch->ul_slot + 1) % n_slots_frame;
     }
   }
 
@@ -1264,7 +1265,6 @@ int nr_acknack_scheduling(int mod_id,
 
   int max_fb_time = 0;
   get_pdsch_to_harq_feedback(mod_id, UE_id, bwp_Id, ss_type, &max_fb_time, pdsch_to_harq_feedback);
-  int max_absslot = frame*n_slots_frame + slot + max_fb_time;
 
   LOG_D(NR_MAC,"pucch_acknak 1b. DL %d.%d, UL_ACK %d.%d, DAI_C %d\n",frame,slot,pucch->frame,pucch->ul_slot,pucch->dai_c);
   /* there is a HARQ. Check whether we can use it for this ACKNACK */
@@ -1273,7 +1273,10 @@ int nr_acknack_scheduling(int mod_id,
     // Find the right timing_indicator value.
     int i = 0;
     while (i < 8) {
-      if (pdsch_to_harq_feedback[i] == pucch->ul_slot - slot)
+      int diff = pucch->ul_slot - slot;
+      if (diff<0)
+        diff += n_slots_frame;
+      if (pdsch_to_harq_feedback[i] == diff)
         break;
       ++i;
     }
@@ -1303,8 +1306,10 @@ int nr_acknack_scheduling(int mod_id,
   LOG_D(NR_MAC,"pucch_acknak : %d.%d DAI = 0, looking for new pucch occasion\n",frame,slot);
   /* we need to find a new PUCCH occasion */
 
-  /*Inizialization of timing information*/
-  if (pucch->frame == 0 && pucch->ul_slot == 0) {
+  /*(Re)Inizialization of timing information*/
+  if ((pucch->frame == 0 && pucch->ul_slot == 0) ||
+      ((pucch->frame*n_slots_frame + pucch->ul_slot) <
+      (frame*n_slots_frame + slot))) {
     AssertFatal(pucch->sr_flag + pucch->dai_c == 0,
                 "expected no SR/AckNack for UE %d in %4d.%2d, but has %d/%d for %4d.%2d\n",
                 UE_id, frame, slot, pucch->sr_flag, pucch->dai_c, pucch->frame, pucch->ul_slot);
@@ -1314,13 +1319,16 @@ int nr_acknack_scheduling(int mod_id,
 
   // Find the right timing_indicator value.
   int ind_found = -1;
-  // while we are within the feedback limits and it has not been
-  while ((pucch->frame*n_slots_frame + pucch->ul_slot) <= max_absslot) {
+  // while we are within the feedback limits
+  while ((n_slots_frame + pucch->ul_slot - slot) % n_slots_frame <= max_fb_time) {
     int i = 0;
     while (i < 8) {
       LOG_D(NR_MAC,"pdsch_to_harq_feedback[%d] = %d (pucch->ul_slot %d - slot %d)\n",
             i,pdsch_to_harq_feedback[i],pucch->ul_slot,slot);
-      if (pdsch_to_harq_feedback[i] == pucch->ul_slot - slot) {
+      int diff = pucch->ul_slot - slot;
+      if (diff<0)
+        diff += n_slots_frame;
+      if (pdsch_to_harq_feedback[i] == diff) {
         ind_found = i;
         break;
       }

openair2/NR_UE_PHY_INTERFACE/NR_IF_Module.c

@@ -81,13 +81,32 @@ int handle_dci(module_id_t module_id, int cc_id, unsigned int gNB_index, frame_t
 // Note: sdu should always be processed because data and timing advance updates are transmitted by the UE
 int8_t handle_dlsch(nr_downlink_indication_t *dl_info, NR_UL_TIME_ALIGNMENT_t *ul_time_alignment, int pdu_id){
 
-  update_harq_status(dl_info, pdu_id);
+  update_harq_status(dl_info->module_id,
+                     dl_info->rx_ind->rx_indication_body[pdu_id].pdsch_pdu.harq_pid,
+                     dl_info->rx_ind->rx_indication_body[pdu_id].pdsch_pdu.ack_nack);
   if(dl_info->rx_ind->rx_indication_body[pdu_id].pdsch_pdu.ack_nack)
     nr_ue_send_sdu(dl_info, ul_time_alignment, pdu_id);
 
   return 0;
 }
 
+void update_harq_status(module_id_t module_id, uint8_t harq_pid, uint8_t ack_nack) {
+
+  NR_UE_MAC_INST_t *mac = get_mac_inst(module_id);
+  NR_UE_HARQ_STATUS_t *current_harq = &mac->dl_harq_info[harq_pid];
+
+  if (current_harq->active) {
+    current_harq->ack = ack_nack;
+    current_harq->ack_received = true;
+    LOG_D(PHY,"Updating harq_status for harq_id %d,ack/nak %d\n",harq_pid,current_harq->ack);
+  }
+  else {
+    //shouldn't get here
+    LOG_E(MAC, "Trying to process acknack for an inactive harq process (%d)\n", harq_pid);
+  }
+}
+
+
 int nr_ue_ul_indication(nr_uplink_indication_t *ul_info){
 
   NR_UE_L2_STATE_t ret;

openair2/RRC/NR/nr_rrc_proto.h

@@ -79,6 +79,7 @@ void fill_default_secondaryCellGroup(NR_ServingCellConfigCommon_t *servingcellco
                                      int scg_id,
                                      int servCellIndex,
                                      int dl_antenna_ports,
+                                     int minRXTXTIMEpdsch,
                                      int do_csirs,
                                      int initial_csi_index,
                                      int uid);
@@ -90,6 +91,7 @@ void fill_default_reconfig(NR_ServingCellConfigCommon_t *servingcellconfigcommon
                            NR_RRCReconfiguration_IEs_t *reconfig,
                            NR_CellGroupConfig_t *secondaryCellGroup,
                            int dl_antenna_ports,
+                           int minRXTXTIMEpdsch,
                            int do_csirs,
                            int initial_csi_index,
                            int uid);

openair2/RRC/NR/rrc_gNB_nsa.c

@@ -241,6 +241,7 @@ void rrc_add_nsa_user(gNB_RRC_INST *rrc,struct rrc_gNB_ue_context_s *ue_context_
                         reconfig_ies,
                         ue_context_p->ue_context.secondaryCellGroup,
                         carrier->pdsch_AntennaPorts,
+                        carrier->minRXTXTIMEpdsch,
                         carrier->do_CSIRS,
                         carrier->initial_csi_index[ue_context_p->local_uid + 1],
                         ue_context_p->local_uid);
@@ -250,6 +251,7 @@ void rrc_add_nsa_user(gNB_RRC_INST *rrc,struct rrc_gNB_ue_context_s *ue_context_
                         reconfig_ies,
                         ue_context_p->ue_context.secondaryCellGroup,
                         carrier->pdsch_AntennaPorts,
+                        carrier->minRXTXTIMEpdsch,
                         carrier->do_CSIRS,
                         carrier->initial_csi_index[ue_context_p->local_uid + 1],
                         ue_context_p->local_uid);

openair2/RRC/NR/rrc_gNB_reconfig.c

@@ -55,6 +55,7 @@ void fill_default_secondaryCellGroup(NR_ServingCellConfigCommon_t *servingcellco
                                      int scg_id,
                                      int servCellIndex,
                                      int dl_antenna_ports,
+                                     int minRXTXTIMEpdsch,
                                      int do_csirs,
                                      int initial_csi_index,
                                      int uid) {
@@ -945,7 +946,7 @@ void fill_default_secondaryCellGroup(NR_ServingCellConfigCommon_t *servingcellco
  long *delay[8];
  for (int i=0;i<8;i++) {
    delay[i] = calloc(1,sizeof(*delay[i]));
-   *delay[i] = (i<6) ? (i+2) : 0;
+   *delay[i] = i+minRXTXTIMEpdsch;
    ASN_SEQUENCE_ADD(&pucch_Config->dl_DataToUL_ACK->list,delay[i]);
  }
  pucch_Config->spatialRelationInfoToAddModList = calloc(1,sizeof(*pucch_Config->spatialRelationInfoToAddModList));
@@ -1348,6 +1349,7 @@ void fill_default_reconfig(NR_ServingCellConfigCommon_t *servingcellconfigcommon
                            NR_RRCReconfiguration_IEs_t *reconfig,
                            NR_CellGroupConfig_t *secondaryCellGroup,
                            int dl_antenna_ports,
+                           int minRXTXTIMEpdsch,
                            int do_csirs,
                            int initial_csi_index,
                            int uid) {
@@ -1363,6 +1365,7 @@ void fill_default_reconfig(NR_ServingCellConfigCommon_t *servingcellconfigcommon
                                   1,
                                   1,
                                   dl_antenna_ports,
+                                  minRXTXTIMEpdsch,
                                   do_csirs,
                                   initial_csi_index,
                                   uid);