diff --git a/doc/Doxyfile b/doc/Doxyfile
index 564c43bb3f..023fe84693 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -997,7 +997,6 @@ INPUT                  = \
 @CMAKE_CURRENT_SOURCE_DIR@/../executables/softmodem-common.h \
 @CMAKE_CURRENT_SOURCE_DIR@/../executables/nr-softmodem.c \
 @CMAKE_CURRENT_SOURCE_DIR@/../executables/nr-gnb.c \
-@CMAKE_CURRENT_SOURCE_DIR@/../executables/rt_profiling.h \
 @CMAKE_CURRENT_SOURCE_DIR@/../executables/nr-uesoftmodem.h \
 @CMAKE_CURRENT_SOURCE_DIR@/../executables/nr-uesoftmodem.c \
 @CMAKE_CURRENT_SOURCE_DIR@/../executables/lte-softmodem.h \
diff --git a/executables/lte-enb.c b/executables/lte-enb.c
index 477ff5cd68..39f72db86c 100644
--- a/executables/lte-enb.c
+++ b/executables/lte-enb.c
@@ -568,7 +568,7 @@ int wakeup_rxtx(PHY_VARS_eNB *eNB,
   LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
   int ret;
   LOG_D(PHY,"ENTERED wakeup_rxtx, %d.%d\n",ru_proc->frame_rx,ru_proc->tti_rx);
-  // wake up TX for subframe n+sl_ahead
+  // wake up TX for subframe n+sf_ahead
   // lock the TX mutex and make sure the thread is ready
   AssertFatal((ret=pthread_mutex_lock(&L1_proc->mutex)) == 0,"mutex_lock returns %d\n", ret);
 
diff --git a/executables/nr-gnb.c b/executables/nr-gnb.c
index 3f306e99ee..f80c5f2e49 100644
--- a/executables/nr-gnb.c
+++ b/executables/nr-gnb.c
@@ -36,7 +36,6 @@
 #include "assertions.h"
 #include <common/utils/LOG/log.h>
 #include <common/utils/system.h>
-#include "rt_profiling.h"
 
 #include "PHY/types.h"
 
@@ -91,12 +90,6 @@ static void tx_func(processingData_L1tx_t *info)
   int slot_tx = info->slot;
   int frame_rx = info->frame_rx;
   int slot_rx = info->slot_rx;
-  int64_t absslot_tx = info->timestamp_tx / info->gNB->frame_parms.get_samples_per_slot(slot_tx, &info->gNB->frame_parms);
-  int64_t absslot_rx = absslot_tx - info->gNB->RU_list[0]->sl_ahead;
-  if (absslot_rx < 0) {
-    LOG_W(NR_PHY, "Slot ahead %d is larger than absslot_tx %ld. Cannot start TX yet.\n", info->gNB->RU_list[0]->sl_ahead, absslot_tx);
-    return;
-  }
   LOG_D(NR_PHY, "%d.%d running tx_func\n", frame_tx, slot_tx);
   PHY_VARS_gNB *gNB = info->gNB;
   module_id_t module_id = gNB->Mod_id;
@@ -134,8 +127,6 @@ static void tx_func(processingData_L1tx_t *info)
   if (tx_slot_type == NR_DOWNLINK_SLOT || tx_slot_type == NR_MIXED_SLOT || get_softmodem_params()->continuous_tx) {
     start_meas(&info->gNB->phy_proc_tx);
     phy_procedures_gNB_TX(info, frame_tx, slot_tx, 1);
-    const int rt_prof_idx = absslot_rx % RT_PROF_DEPTH;
-    clock_gettime(CLOCK_MONOTONIC, &info->gNB->rt_L1_profiling.return_L1_TX[rt_prof_idx]);
 
     PHY_VARS_gNB *gNB = info->gNB;
     processingData_RU_t syncMsgRU;
@@ -187,15 +178,6 @@ static void rx_func(processingData_L1_t *info)
   int frame_rx = info->frame_rx;
   int slot_rx = info->slot_rx;
   nfapi_nr_config_request_scf_t *cfg = &gNB->gNB_config;
-  int cumul_samples = gNB->frame_parms.get_samples_per_slot(0, &gNB->frame_parms);
-  int i = 1;
-  for (; i < gNB->frame_parms.slots_per_subframe / 2; i++)
-    cumul_samples += gNB->frame_parms.get_samples_per_slot(i, &gNB->frame_parms);
-  int samples = cumul_samples / i;
-  int64_t absslot_tx = info->timestamp_tx / samples;
-  int64_t absslot_rx = absslot_tx - gNB->RU_list[0]->sl_ahead;
-  int rt_prof_idx = absslot_rx % RT_PROF_DEPTH;
-  clock_gettime(CLOCK_MONOTONIC, &info->gNB->rt_L1_profiling.start_L1_RX[rt_prof_idx]);
 
   // *******************************************************************
 
@@ -253,7 +235,6 @@ static void rx_func(processingData_L1_t *info)
 #endif
   }
 
-  clock_gettime(CLOCK_MONOTONIC, &info->gNB->rt_L1_profiling.return_L1_RX[rt_prof_idx]);
 }
 
 static size_t dump_L1_meas_stats(PHY_VARS_gNB *gNB, RU_t *ru, char *output, size_t outputlen) {
diff --git a/executables/nr-ru.c b/executables/nr-ru.c
index 90d7e235de..d87acf1bbe 100644
--- a/executables/nr-ru.c
+++ b/executables/nr-ru.c
@@ -33,7 +33,6 @@
 #include "common/utils/assertions.h"
 #include "common/utils/system.h"
 #include "common/ran_context.h"
-#include "rt_profiling.h"
 
 #include "radio/COMMON/common_lib.h"
 #include "radio/ETHERNET/ethernet_lib.h"
@@ -69,7 +68,6 @@ static int DEFRUTPCORES[] = {-1,-1,-1,-1};
 #include <nfapi/oai_integration/vendor_ext.h>
 #include "executables/nr-softmodem-common.h"
 
-int sl_ahead;
 static void NRRCconfig_RU(configmodule_interface_t *cfg);
 
 /*************************************************************/
@@ -1038,15 +1036,6 @@ void ru_tx_func(void *param)
   int print_frame = 8;
   char filename[40];
 
-  int cumul_samples = fp->get_samples_per_slot(0, fp);
-  int i = 1;
-  for (; i < fp->slots_per_subframe / 2; i++)
-    cumul_samples += fp->get_samples_per_slot(i, fp);
-  int samples = cumul_samples / i;
-  int64_t absslot_tx = info->timestamp_tx / samples;
-  int64_t absslot_rx = absslot_tx - ru->sl_ahead;
-  int rt_prof_idx = absslot_rx % RT_PROF_DEPTH;
-  clock_gettime(CLOCK_MONOTONIC,&ru->rt_ru_profiling.start_RU_TX[rt_prof_idx]);
   // do TX front-end processing if needed (precoding and/or IDFTs)
   if (ru->feptx_prec)
     ru->feptx_prec(ru,frame_tx,slot_tx);
@@ -1093,11 +1082,6 @@ void ru_tx_func(void *param)
       }//for (i=0; i<ru->nb_tx; i++)
     }//if(frame_tx == print_frame)
   }//else  emulate_rf
-  clock_gettime(CLOCK_MONOTONIC,&ru->rt_ru_profiling.return_RU_TX[rt_prof_idx]);
-  struct timespec *t0=&ru->rt_ru_profiling.start_RU_TX[rt_prof_idx];
-  struct timespec *t1=&ru->rt_ru_profiling.return_RU_TX[rt_prof_idx];
-
-  LOG_D(PHY,"rt_prof_idx %d : RU_TX time %d\n",rt_prof_idx,(int)(1e9 * (t1->tv_sec - t0->tv_sec) + (t1->tv_nsec-t0->tv_nsec)));
 }
 
 void *ru_thread(void *param)
@@ -1273,9 +1257,6 @@ void *ru_thread(void *param)
       proc->timestamp_tx += fp->get_samples_per_slot(i % fp->slots_per_frame, fp);
     proc->tti_tx = (proc->tti_rx + ru->sl_ahead) % fp->slots_per_frame;
     proc->frame_tx = proc->tti_rx > proc->tti_tx ? (proc->frame_rx + 1) & 1023 : proc->frame_rx;
-    int64_t absslot_rx = proc->timestamp_rx/fp->get_samples_per_slot(proc->tti_rx,fp);
-    int rt_prof_idx = absslot_rx % RT_PROF_DEPTH;
-    clock_gettime(CLOCK_MONOTONIC,&ru->rt_ru_profiling.return_RU_south_in[rt_prof_idx]);
     LOG_D(PHY,"AFTER fh_south_in - SFN/SL:%d%d RU->proc[RX:%d.%d TX:%d.%d] RC.gNB[0]:[RX:%d%d TX(SFN):%d]\n",
           frame,slot,
           proc->frame_rx,proc->tti_rx,
@@ -1321,7 +1302,6 @@ void *ru_thread(void *param)
         rx_tti_busy[proc->tti_rx % RU_RX_SLOT_DEPTH] = true;
         ru->feprx(ru,proc->tti_rx);
         LOG_D(NR_PHY, "Setting %d.%d (%d) to busy\n", proc->frame_rx, proc->tti_rx, proc->tti_rx % RU_RX_SLOT_DEPTH);
-        clock_gettime(CLOCK_MONOTONIC,&ru->rt_ru_profiling.return_RU_feprx[rt_prof_idx]);
         //LOG_M("rxdata.m","rxs",ru->common.rxdata[0],1228800,1,1);
         LOG_D(PHY,"RU proc: frame_rx = %d, tti_rx = %d\n", proc->frame_rx, proc->tti_rx);
         gNBscopeCopy(RC.gNB[0],
@@ -1352,15 +1332,10 @@ void *ru_thread(void *param)
                            proc->frame_rx,
                            proc->tti_rx);
           }
-          clock_gettime(CLOCK_MONOTONIC,&ru->rt_ru_profiling.return_RU_prachrx[rt_prof_idx]);
           free_nr_ru_prach_entry(ru,prach_id);
           VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_RU_PRACH_RX, 0);
         } // end if (prach_id > 0)
       } // end if (ru->feprx)
-      else {
-         memset(&ru->rt_ru_profiling.return_RU_feprx[rt_prof_idx],0,sizeof(struct timespec));
-         memset(&ru->rt_ru_profiling.return_RU_prachrx[rt_prof_idx],0,sizeof(struct timespec));
-      }
     } // end if (slot_type == NR_UPLINK_SLOT || slot_type == NR_MIXED_SLOT) {
 #endif
 
diff --git a/executables/nr-uesoftmodem.c b/executables/nr-uesoftmodem.c
index d5896bbffd..d3362a4851 100644
--- a/executables/nr-uesoftmodem.c
+++ b/executables/nr-uesoftmodem.c
@@ -99,7 +99,6 @@ nrUE_params_t nrUE_params = {0};
 pthread_cond_t nfapi_sync_cond;
 pthread_mutex_t nfapi_sync_mutex;
 int nfapi_sync_var=-1; //!< protected by mutex \ref nfapi_sync_mutex
-int sf_ahead = 6; //??? value ???
 pthread_cond_t sync_cond;
 pthread_mutex_t sync_mutex;
 int sync_var=-1; //!< protected by mutex \ref sync_mutex.
diff --git a/executables/rt_profiling.h b/executables/rt_profiling.h
deleted file mode 100644
index 9b72a7091f..0000000000
--- a/executables/rt_profiling.h
+++ /dev/null
@@ -1,64 +0,0 @@
-
-/*
- * 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 rt_profiling.h
- * \brief Definitions for proflling real-time scheduling
- * \author
- * \date 2022
- * \version 0.1
- * \company Eurecom
- * \email:
- * \note
- * \warning
- */
-#ifndef TIME_PROFILING_H
-#define TIME_PROFILING_H
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-// depth of trace in slots
-#define RT_PROF_DEPTH 100
-typedef struct {
-   int64_t absslot_rx[RT_PROF_DEPTH];
-   struct timespec return_RU_south_in[RT_PROF_DEPTH];
-   struct timespec return_RU_feprx[RT_PROF_DEPTH];
-   struct timespec return_RU_prachrx[RT_PROF_DEPTH];
-   struct timespec return_RU_pushL1[RT_PROF_DEPTH];
-   struct timespec start_RU_TX[RT_PROF_DEPTH];
-   struct timespec return_RU_TX[RT_PROF_DEPTH];
-} rt_ru_profiling_t;
-
-typedef struct {
-   int64_t absslot_ux[RT_PROF_DEPTH];
-   struct timespec start_L1_RX[RT_PROF_DEPTH];
-   struct timespec return_L1_RX[RT_PROF_DEPTH];
-   struct timespec start_L1_TX[RT_PROF_DEPTH];
-   struct timespec return_L1_TX[RT_PROF_DEPTH];
-   struct timespec return_L1_prachrx[RT_PROF_DEPTH];
-   struct timespec return_L1_puschL1[RT_PROF_DEPTH];
-} rt_L1_profiling_t;
-#ifdef __cplusplus
-}
-#endif
-#endif
diff --git a/executables/softmodem-common.h b/executables/softmodem-common.h
index e593a78210..2e7aaacc21 100644
--- a/executables/softmodem-common.h
+++ b/executables/softmodem-common.h
@@ -352,7 +352,6 @@ void set_softmodem_sighandler(void);
 extern uint64_t downlink_frequency[MAX_NUM_CCs][4];
 extern int32_t uplink_frequency_offset[MAX_NUM_CCs][4];
 extern int usrp_tx_thread;
-extern int sl_ahead;
 extern int sf_ahead;
 extern int oai_exit;
 
diff --git a/openair1/PHY/CODING/nrLDPC_coding/nrLDPC_coding_segment/nrLDPC_coding_segment_encoder.c b/openair1/PHY/CODING/nrLDPC_coding/nrLDPC_coding_segment/nrLDPC_coding_segment_encoder.c
index 4a4e6beaaf..757566b1fc 100644
--- a/openair1/PHY/CODING/nrLDPC_coding/nrLDPC_coding_segment/nrLDPC_coding_segment_encoder.c
+++ b/openair1/PHY/CODING/nrLDPC_coding/nrLDPC_coding_segment/nrLDPC_coding_segment_encoder.c
@@ -177,8 +177,6 @@ static int nrLDPC_prepare_TB_encoding(nrLDPC_slot_encoding_parameters_t *nrLDPC_
   impp.toutput = nrLDPC_slot_encoding_parameters->toutput;
   impp.Kb = nrLDPC_TB_encoding_parameters->Kb;
   impp.Zc = nrLDPC_TB_encoding_parameters->Z;
-  NR_DL_gNB_HARQ_t harq;
-  impp.harq = &harq;
   impp.BG = nrLDPC_TB_encoding_parameters->BG;
   impp.output = nrLDPC_TB_encoding_parameters->segments->output;
   impp.K = nrLDPC_TB_encoding_parameters->K;
diff --git a/openair1/PHY/CODING/nrLDPC_defs.h b/openair1/PHY/CODING/nrLDPC_defs.h
index fe386ce6d7..3db41a0e29 100644
--- a/openair1/PHY/CODING/nrLDPC_defs.h
+++ b/openair1/PHY/CODING/nrLDPC_defs.h
@@ -66,7 +66,6 @@ typedef struct {
   uint32_t Zc;
   /// Number of "Filler" bits
   uint32_t F;
-  void *harq;
   /// Encoder BG
   uint8_t BG;
   /// Interleaver outputs
diff --git a/openair1/PHY/defs_RU.h b/openair1/PHY/defs_RU.h
index 1b0182bffd..167326e811 100644
--- a/openair1/PHY/defs_RU.h
+++ b/openair1/PHY/defs_RU.h
@@ -39,7 +39,6 @@
 #include "time_meas.h"
 #include "defs_common.h"
 #include "nfapi_nr_interface_scf.h"
-#include <executables/rt_profiling.h>
 #include "common/utils/threadPool/task_ans.h"
 #include "common/utils/threadPool/thread-pool.h"
 
@@ -663,8 +662,6 @@ typedef struct RU_t_s {
   int tpcores[16];
   /// number of cores for RU ThreadPool
   int num_tpcores;
-  /// structure for analyzing high-level RT measurements
-  rt_ru_profiling_t rt_ru_profiling;
   void* scopeData;
 } RU_t;
 
diff --git a/openair1/PHY/defs_gNB.h b/openair1/PHY/defs_gNB.h
index 154cc7a989..492c022da6 100644
--- a/openair1/PHY/defs_gNB.h
+++ b/openair1/PHY/defs_gNB.h
@@ -43,7 +43,6 @@
 #include "PHY/CODING/nrLDPC_coding/nrLDPC_coding_interface.h"
 #include "PHY/CODING/nrLDPC_extern.h"
 #include "PHY/CODING/nrLDPC_decoder/nrLDPC_types.h"
-#include "executables/rt_profiling.h"
 #include "nfapi_nr_interface_scf.h"
 #include "openair2/NR_PHY_INTERFACE/NR_IF_Module.h"
 
@@ -560,8 +559,6 @@ typedef struct PHY_VARS_gNB_s {
   int L1_tx_thread_core;
   struct processingData_L1tx *msgDataTx;
   void *scopeData;
-  /// structure for analyzing high-level RT measurements
-  rt_L1_profiling_t rt_L1_profiling;
 } PHY_VARS_gNB;
 
 struct puschSymbolReqId {
diff --git a/openair1/PHY/defs_nr_UE.h b/openair1/PHY/defs_nr_UE.h
index 5e04969e43..ae6bbbc2cd 100644
--- a/openair1/PHY/defs_nr_UE.h
+++ b/openair1/PHY/defs_nr_UE.h
@@ -627,8 +627,6 @@ typedef struct nr_rxtx_thread_data_s {
   PHY_VARS_NR_UE    *UE;
   int writeBlockSize;
   nr_phy_data_t phy_data;
-  int tx_wait_for_dlsch;
-  int rx_offset;
 } nr_rxtx_thread_data_t;
 
 typedef struct LDPCDecode_ue_s {
diff --git a/openair1/SIMULATION/NR_PHY/dlsim.c b/openair1/SIMULATION/NR_PHY/dlsim.c
index 95a5b9ea64..236913d3f8 100644
--- a/openair1/SIMULATION/NR_PHY/dlsim.c
+++ b/openair1/SIMULATION/NR_PHY/dlsim.c
@@ -107,7 +107,6 @@ int32_t uplink_frequency_offset[MAX_NUM_CCs][4];
 double cpuf;
 char *uecap_file;
 
-int sl_ahead = 0;
 //uint8_t nfapi_mode = 0;
 uint64_t downlink_frequency[MAX_NUM_CCs][4];
 THREAD_STRUCT thread_struct;
diff --git a/openair1/SIMULATION/NR_PHY/prachsim.c b/openair1/SIMULATION/NR_PHY/prachsim.c
index 7e8ecced70..b5318f3ea6 100644
--- a/openair1/SIMULATION/NR_PHY/prachsim.c
+++ b/openair1/SIMULATION/NR_PHY/prachsim.c
@@ -83,7 +83,6 @@ openair0_config_t openair0_cfg[MAX_CARDS];
 //uint8_t nfapi_mode=0;
 uint64_t downlink_frequency[MAX_NUM_CCs][4];
 int32_t uplink_frequency_offset[MAX_NUM_CCs][4];
-int sl_ahead = 0;
 uint32_t N_RB_DL = 106;
 
 NR_IF_Module_t *NR_IF_Module_init(int Mod_id) { return (NULL); }
diff --git a/openair1/SIMULATION/NR_PHY/ulsim.c b/openair1/SIMULATION/NR_PHY/ulsim.c
index ffc6690b42..301beb19f5 100644
--- a/openair1/SIMULATION/NR_PHY/ulsim.c
+++ b/openair1/SIMULATION/NR_PHY/ulsim.c
@@ -106,9 +106,6 @@ RAN_CONTEXT_t RC;
 char *uecap_file;
 int32_t uplink_frequency_offset[MAX_NUM_CCs][4];
 
-int sf_ahead = 4;
-int slot_ahead=6 ;
-int sl_ahead = 0;
 double cpuf;
 //uint8_t nfapi_mode = 0;
 uint64_t downlink_frequency[MAX_NUM_CCs][4];
diff --git a/radio/ETHERNET/benetel/5g/benetel.c b/radio/ETHERNET/benetel/5g/benetel.c
index 90fce2e206..996d568767 100644
--- a/radio/ETHERNET/benetel/5g/benetel.c
+++ b/radio/ETHERNET/benetel/5g/benetel.c
@@ -257,7 +257,6 @@ printf("rxdata in benetel_fh_if4p5_south_in %p\n", &ru->common.rxdataF[antenna][
   //printf("BENETEL: %s (f.sf %d.%d)\n", __FUNCTION__, *frame, *slot);
 
   RU_proc_t *proc = &ru->proc;
-  extern int sl_ahead;
   int f = *frame;
   int sl = *slot;
 
@@ -272,8 +271,8 @@ printf("rxdata in benetel_fh_if4p5_south_in %p\n", &ru->common.rxdataF[antenna][
 
   if (get_nprocs()<=4) {
     // why? what if there are more?
-    proc->tti_tx   = (sl+sl_ahead)%20;
-    proc->frame_tx = (sl>(19-sl_ahead)) ? (f+1)&1023 : f;
+    proc->tti_tx   = (sl+ru->sl_ahead)%20;
+    proc->frame_tx = (sl>(19-ru->sl_ahead)) ? (f+1)&1023 : f;
   }
 }
 
diff --git a/radio/fhi_72/oran_isolate.c b/radio/fhi_72/oran_isolate.c
index f922df40bb..d3f4fa1796 100644
--- a/radio/fhi_72/oran_isolate.c
+++ b/radio/fhi_72/oran_isolate.c
@@ -203,7 +203,6 @@ void oran_fh_if4p5_south_in(RU_t *ru, int *frame, int *slot)
   ru_info.prach_buf = ru->prach_rxsigF[0]; // index: [prach_oca][ant_id]
 
   RU_proc_t *proc = &ru->proc;
-  extern int sl_ahead;
   int f, sl;
   LOG_D(PHY, "Read rxdataF %p,%p\n", ru_info.rxdataF[0], ru_info.rxdataF[1]);
   start_meas(&ru->rx_fhaul);
@@ -217,8 +216,8 @@ void oran_fh_if4p5_south_in(RU_t *ru, int *frame, int *slot)
   int slots_per_frame = 10 << (ru->openair0_cfg.nr_scs_for_raster);
   proc->tti_rx = sl;
   proc->frame_rx = f;
-  proc->tti_tx = (sl + sl_ahead) % slots_per_frame;
-  proc->frame_tx = (sl > (slots_per_frame - 1 - sl_ahead)) ? (f + 1) & 1023 : f;
+  proc->tti_tx = (sl + ru->sl_ahead) % slots_per_frame;
+  proc->frame_tx = (sl > (slots_per_frame - 1 - ru->sl_ahead)) ? (f + 1) & 1023 : f;
 
   if (proc->first_rx == 0) {
     if (proc->tti_rx != *slot) {