Merge branch 'develop-nr-prach-integration' into develop-nr

NR PRACH development integration

cmake_targets/CMakeLists.txt

@@ -1321,6 +1321,7 @@ set(PHY_SRC_UE
   ${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/nr_initial_sync.c
   ${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/nr_pbch.c
   ${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/
+  ${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/nr_prach.c
   ${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/srs_modulation_nr.c
   ${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/dci_nr.c
   ${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/dci_tools_nr.c

openair1/PHY/NR_UE_TRANSPORT/nr_prach.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 PHY/LTE_TRANSPORT/prach_common.c
+ * \brief Common routines for UE/eNB PRACH physical channel V8.6 2009-03
+ * \author R. Knopp
+ * \date 2011
+ * \version 0.1
+ * \company Eurecom
+ * \email: knopp@eurecom.fr
+ * \note
+ * \warning
+ */
+#include "PHY/sse_intrin.h"
+//#include "PHY/defs_common.h"
+//#include "PHY/phy_extern.h"
+//#include "PHY/phy_extern_ue.h"
+#include "common/utils/LOG/vcd_signal_dumper.h"
+
+//#include "PHY/defs.h"
+#include "PHY/impl_defs_nr.h"
+//#include "PHY/defs_nr_common.h"
+#include "PHY/defs_nr_UE.h"
+#include "PHY/NR_UE_TRANSPORT/nr_prach.h"
+//#include "PHY/extern.h"
+//#include "LAYER2/MAC/extern.h"
+//#include "PHY/NR_UE_TRANSPORT/pucch_nr.h"
+
+#include "common/utils/LOG/log.h"
+#include "common/utils/LOG/vcd_signal_dumper.h"
+
+#include "T.h"
+
+
+
+#define NR_PRACH_DEBUG 1
+
+
+
+
+void dump_nr_prach_config(NR_DL_FRAME_PARMS *frame_parms,uint8_t subframe)
+{
+
+  FILE *fd;
+
+  fd = fopen("prach_config.txt","w");
+  fprintf(fd,"prach_config: subframe          = %d\n",subframe);
+  fprintf(fd,"prach_config: N_RB_UL           = %d\n",frame_parms->N_RB_UL);
+  fprintf(fd,"prach_config: frame_type        = %s\n",(frame_parms->frame_type==1) ? "TDD":"FDD");
+
+  if(frame_parms->frame_type==1) fprintf(fd,"prach_config: tdd_config        = %d\n",frame_parms->tdd_config);
+
+  fprintf(fd,"prach_config: rootSequenceIndex = %d\n",frame_parms->prach_config_common.rootSequenceIndex);
+  fprintf(fd,"prach_config: prach_ConfigIndex = %d\n",frame_parms->prach_config_common.prach_ConfigInfo.prach_ConfigIndex);
+  fprintf(fd,"prach_config: Ncs_config        = %d\n",frame_parms->prach_config_common.prach_ConfigInfo.zeroCorrelationZoneConfig);
+  fprintf(fd,"prach_config: highSpeedFlag     = %d\n",frame_parms->prach_config_common.prach_ConfigInfo.highSpeedFlag);
+  fprintf(fd,"prach_config: n_ra_prboffset    = %d\n",frame_parms->prach_config_common.prach_ConfigInfo.prach_FreqOffset);
+  fclose(fd);
+
+}
+
+// This function computes the du
+void nr_fill_du(uint8_t prach_fmt)
+{
+
+  uint16_t iu,u,p;
+  uint16_t N_ZC;
+  uint16_t *prach_root_sequence_map;
+
+  if (prach_fmt<4) {
+    N_ZC = 839;
+    prach_root_sequence_map = prach_root_sequence_map_0_3;
+  } else {
+    N_ZC = 139;
+    prach_root_sequence_map = prach_root_sequence_map_abc;
+  }
+
+  for (iu=0; iu<(N_ZC-1); iu++) {
+
+    u=prach_root_sequence_map[iu];
+    p=1;
+
+    while (((u*p)%N_ZC)!=1)
+      p++;
+
+    nr_du[u] = ((p<(N_ZC>>1)) ? p : (N_ZC-p));
+  }
+
+}
+
+#if 0
+uint8_t get_num_prach_tdd(module_id_t Mod_id)
+{
+  NR_DL_FRAME_PARMS *fp = &PHY_vars_UE_g[Mod_id][0]->frame_parms;
+  return(tdd_preamble_map[fp->prach_config_common.prach_ConfigInfo.prach_ConfigIndex][fp->tdd_config].num_prach);
+}
+
+uint8_t get_fid_prach_tdd(module_id_t Mod_id,uint8_t tdd_map_index)
+{
+  NR_DL_FRAME_PARMS *fp = &PHY_vars_UE_g[Mod_id][0]->frame_parms;
+  return(tdd_preamble_map[fp->prach_config_common.prach_ConfigInfo.prach_ConfigIndex][fp->tdd_config].map[tdd_map_index].f_ra);
+}
+#endif
+
+uint16_t get_nr_prach_fmt(uint8_t prach_ConfigIndex)
+{
+  //return (table_6_3_3_2_2_prachConfig_Index[prach_ConfigIndex][0]); // if using table 6.3.3.2-2: Random access configurations for FR1 and paired spectrum/supplementary uplink
+  return (table_6_3_3_2_3_prachConfig_Index[prach_ConfigIndex][0]); // if using table 6.3.3.2-3: Random access configurations for FR1 and unpaired spectrum
+  // For FR2 not implemented. FIXME
+}
+
+#if 0
+uint8_t get_prach_fmt(uint8_t prach_ConfigIndex,lte_frame_type_t frame_type)
+{
+
+  if (frame_type == FDD) // FDD
+    return(prach_ConfigIndex>>4);
+
+  else {
+    if (prach_ConfigIndex < 20)
+      return (0);
+
+    if (prach_ConfigIndex < 30)
+      return (1);
+
+    if (prach_ConfigIndex < 40)
+      return (2);
+
+    if (prach_ConfigIndex < 48)
+      return (3);
+    else
+      return (4);
+  }
+}
+
+uint8_t get_prach_prb_offset(NR_DL_FRAME_PARMS *frame_parms,
+			     uint8_t prach_ConfigIndex, 
+			     uint8_t n_ra_prboffset,
+			     uint8_t tdd_mapindex, uint16_t Nf, uint16_t prach_fmt)
+{
+  lte_frame_type_t frame_type         = frame_parms->frame_type;
+  uint8_t tdd_config         = frame_parms->tdd_config;
+
+  uint8_t n_ra_prb;
+  uint8_t f_ra,t1_ra;
+  uint8_t Nsp=2;
+
+  if (frame_type == TDD) { // TDD
+
+    if (tdd_preamble_map[prach_ConfigIndex][tdd_config].num_prach==0) {
+      LOG_E(PHY, "Illegal prach_ConfigIndex %"PRIu8"", prach_ConfigIndex);
+      return(-1);
+    }
+
+    // adjust n_ra_prboffset for frequency multiplexing (p.36 36.211)
+    f_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[tdd_mapindex].f_ra;
+
+    if (prach_fmt < 4) {
+      if ((f_ra&1) == 0) {
+        n_ra_prb = n_ra_prboffset + 6*(f_ra>>1);
+      } else {
+        n_ra_prb = frame_parms->N_RB_UL - 6 - n_ra_prboffset + 6*(f_ra>>1);
+      }
+    } else {
+      if ((tdd_config >2) && (tdd_config<6))
+        Nsp = 2;
+
+      t1_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[0].t1_ra;
+
+      if ((((Nf&1)*(2-Nsp)+t1_ra)&1) == 0) {
+        n_ra_prb = 6*f_ra;
+      } else {
+        n_ra_prb = frame_parms->N_RB_UL - 6*(f_ra+1);
+      }
+    }
+  }
+  else { //FDD
+    n_ra_prb = n_ra_prboffset;
+  }
+  return(n_ra_prb);
+}
+#endif //0
+
+int is_nr_prach_subframe(NR_DL_FRAME_PARMS *frame_parms,uint32_t frame, uint8_t subframe) {
+
+  uint8_t prach_ConfigIndex  = frame_parms->prach_config_common.prach_ConfigInfo.prach_ConfigIndex;
+/*
+  // For FR1 paired
+  if (((frame%table_6_3_3_2_2_prachConfig_Index[prach_ConfigIndex][2]) == table_6_3_3_2_2_prachConfig_Index[prach_ConfigIndex][3]) &&
+      ((table_6_3_3_2_2_prachConfig_Index[prach_ConfigIndex][4]&(1<<subframe)) == 1)) {
+    // using table 6.3.3.2-2: Random access configurations for FR1 and paired spectrum/supplementary uplink
+    return(1);
+  } else {
+    return(0);
+  }
+*/
+  // For FR1 unpaired
+  if (((frame%table_6_3_3_2_3_prachConfig_Index[prach_ConfigIndex][2]) == table_6_3_3_2_3_prachConfig_Index[prach_ConfigIndex][3]) &&
+      ((table_6_3_3_2_3_prachConfig_Index[prach_ConfigIndex][4]&(1<<subframe)) == 1)) {
+    // using table 6.3.3.2-2: Random access configurations for FR1 and unpaired
+    return(1);
+  } else {
+    return(0);
+  }
+/*
+  // For FR2: FIXME
+  if ((((frame%table_6_3_3_2_4_prachConfig_Index[prach_ConfigIndex][2]) == table_6_3_3_2_4_prachConfig_Index[prach_ConfigIndex][3]) ||
+       ((frame%table_6_3_3_2_4_prachConfig_Index[prach_ConfigIndex][2]) == table_6_3_3_2_4_prachConfig_Index[prach_ConfigIndex][4]))
+       &&
+       ((table_6_3_3_2_4_prachConfig_Index[prach_ConfigIndex][5]&(1<<subframe)) == 1)) {
+    // using table 6.3.3.2-2: Random access configurations for FR1 and unpaired
+    return(1);
+  } else {
+    return(0);
+  }
+*/
+}
+
+#if 0
+int is_prach_subframe0(NR_DL_FRAME_PARMS *frame_parms,uint8_t prach_ConfigIndex,uint32_t frame, uint8_t subframe)
+{
+  //  uint8_t prach_ConfigIndex  = frame_parms->prach_config_common.prach_ConfigInfo.prach_ConfigIndex;
+  uint8_t tdd_config         = frame_parms->tdd_config;
+  uint8_t t0_ra;
+  uint8_t t1_ra;
+  uint8_t t2_ra;
+
+  int prach_mask = 0;
+
+  if (frame_parms->frame_type == FDD) { //FDD
+    //implement Table 5.7.1-2 from 36.211 (Rel-10, p.41)
+    if ((((frame&1) == 1) && (subframe < 9)) ||
+        (((frame&1) == 0) && (subframe == 9)))  // This is an odd frame, ignore even-only PRACH frames
+      if (((prach_ConfigIndex&0xf)<3) || // 0,1,2,16,17,18,32,33,34,48,49,50
+          ((prach_ConfigIndex&0x1f)==18) || // 18,50
+          ((prach_ConfigIndex&0xf)==15))   // 15,47
+        return(0);
+
+    switch (prach_ConfigIndex&0x1f) {
+    case 0:
+    case 3:
+      if (subframe==1) prach_mask = 1;
+      break;
+
+    case 1:
+    case 4:
+      if (subframe==4) prach_mask = 1;
+      break;
+
+    case 2:
+    case 5:
+      if (subframe==7) prach_mask = 1;
+      break;
+
+    case 6:
+      if ((subframe==1) || (subframe==6)) prach_mask=1;
+      break;
+
+    case 7:
+      if ((subframe==2) || (subframe==7)) prach_mask=1;
+      break;
+
+    case 8:
+      if ((subframe==3) || (subframe==8)) prach_mask=1;
+      break;
+
+    case 9:
+      if ((subframe==1) || (subframe==4) || (subframe==7)) prach_mask=1;
+      break;
+
+    case 10:
+      if ((subframe==2) || (subframe==5) || (subframe==8)) prach_mask=1;
+      break;
+
+    case 11:
+      if ((subframe==3) || (subframe==6) || (subframe==9)) prach_mask=1;
+      break;
+
+    case 12:
+      if ((subframe&1)==0) prach_mask=1;
+      break;
+
+    case 13:
+      if ((subframe&1)==1) prach_mask=1;
+      break;
+
+    case 14:
+      prach_mask=1;
+      break;
+
+    case 15:
+      if (subframe==9) prach_mask=1;
+      break;
+    }
+  } else { // TDD
+
+    AssertFatal(prach_ConfigIndex<64,
+		"Illegal prach_ConfigIndex %d for ",prach_ConfigIndex);
+    AssertFatal(tdd_preamble_map[prach_ConfigIndex][tdd_config].num_prach>0,
+		"Illegal prach_ConfigIndex %d for ",prach_ConfigIndex);
+
+    t0_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[0].t0_ra;
+    t1_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[0].t1_ra;
+    t2_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[0].t2_ra;
+#ifdef PRACH_DEBUG
+    LOG_I(PHY,"[PRACH] Checking for PRACH format (ConfigIndex %d) in TDD subframe %d (%d,%d,%d)\n",
+          prach_ConfigIndex,
+          subframe,
+          t0_ra,t1_ra,t2_ra);
+#endif
+
+    if ((((t0_ra == 1) && ((frame &1)==0))||  // frame is even and PRACH is in even frames
+         ((t0_ra == 2) && ((frame &1)==1))||  // frame is odd and PRACH is in odd frames
+         (t0_ra == 0)) &&                                // PRACH is in all frames
+        (((subframe<5)&&(t1_ra==0)) ||                   // PRACH is in 1st half-frame
+         (((subframe>4)&&(t1_ra==1))))) {                // PRACH is in 2nd half-frame
+      if ((prach_ConfigIndex<48) &&                          // PRACH only in normal UL subframe
+	  (((subframe%5)-2)==t2_ra)) prach_mask=1;
+      else if ((prach_ConfigIndex>47) && (((subframe%5)-1)==t2_ra)) prach_mask=1;      // PRACH can be in UpPTS
+    }
+  }
+
+  return(prach_mask);
+}
+
+int is_prach_subframe(NR_DL_FRAME_PARMS *frame_parms,uint32_t frame, uint8_t subframe) {
+  
+  uint8_t prach_ConfigIndex  = frame_parms->prach_config_common.prach_ConfigInfo.prach_ConfigIndex;
+  int prach_mask             = is_prach_subframe0(frame_parms,prach_ConfigIndex,frame,subframe);
+
+#if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
+  int i;
+
+  for (i=0;i<4;i++) {
+    if (frame_parms->prach_emtc_config_common.prach_ConfigInfo.prach_CElevel_enable[i] == 1) 
+      prach_mask|=(is_prach_subframe0(frame_parms,frame_parms->prach_emtc_config_common.prach_ConfigInfo.prach_ConfigIndex[i],frame,subframe)<<(i+1));
+  }
+#endif
+  return(prach_mask);
+}
+#endif //0
+
+void compute_nr_prach_seq(uint16_t rootSequenceIndex,
+		       uint8_t prach_ConfigIndex,
+		       uint8_t zeroCorrelationZoneConfig,
+		       uint8_t highSpeedFlag,
+		       lte_frame_type_t frame_type,
+		       uint32_t X_u[64][839])
+{
+
+  // Compute DFT of x_u => X_u[k] = x_u(inv(u)*k)^* X_u[k] = exp(j\pi u*inv(u)*k*(inv(u)*k+1)/N_ZC)
+  unsigned int k,inv_u,i,NCS=0,num_preambles;
+  int N_ZC;
+  uint8_t prach_fmt = get_prach_fmt(prach_ConfigIndex,frame_type);
+  uint16_t *prach_root_sequence_map;
+  uint16_t u, preamble_offset;
+  uint16_t n_shift_ra,n_shift_ra_bar, d_start,numshift;
+  uint8_t not_found;
+
+  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_UE_COMPUTE_PRACH, VCD_FUNCTION_IN);
+
+#ifdef PRACH_DEBUG
+  LOG_I(PHY,"compute_prach_seq: NCS_config %d, prach_fmt %d\n",zeroCorrelationZoneConfig, prach_fmt);
+#endif
+
+  AssertFatal(prach_fmt<4,
+	      "PRACH sequence is only precomputed for prach_fmt<4 (have %"PRIu8")\n", prach_fmt );
+  N_ZC = (prach_fmt < 4) ? 839 : 139;
+  //init_prach_tables(N_ZC); //moved to phy_init_lte_ue/eNB, since it takes to long in real-time
+
+  if (prach_fmt < 4) {
+    prach_root_sequence_map = prach_root_sequence_map_0_3;
+  } else {
+    // FIXME cannot be reached
+    prach_root_sequence_map = prach_root_sequence_map_abc;
+  }
+
+
+#ifdef PRACH_DEBUG
+  LOG_I( PHY, "compute_prach_seq: done init prach_tables\n" );
+#endif
+
+
+
+
+  int restricted_Type = 0; //this is hardcoded ('0' for restricted_TypeA; and '1' for restricted_TypeB). FIXME
+  if (highSpeedFlag== 0) {
+
+#ifdef PRACH_DEBUG
+    LOG_I(PHY,"Low speed prach : NCS_config %d\n",zeroCorrelationZoneConfig);
+#endif
+
+    AssertFatal(zeroCorrelationZoneConfig<=15,
+		"FATAL, Illegal Ncs_config for unrestricted format %"PRIu8"\n", zeroCorrelationZoneConfig );
+    if (prach_fmt<3)  NCS = NCS_unrestricted_delta_f_RA_125[zeroCorrelationZoneConfig];
+    if (prach_fmt==3) NCS = NCS_unrestricted_delta_f_RA_5[zeroCorrelationZoneConfig];
+    if (prach_fmt>3)  NCS = NCS_unrestricted_delta_f_RA_15[zeroCorrelationZoneConfig];
+
+    num_preambles = (NCS==0) ? 64 : ((64*NCS)/N_ZC);
+
+    if (NCS>0) num_preambles++;
+
+    preamble_offset = 0;
+  } else {
+
+#ifdef PRACH_DEBUG
+    LOG_I( PHY, "high speed prach : NCS_config %"PRIu8"\n", zeroCorrelationZoneConfig );
+#endif
+
+    AssertFatal(zeroCorrelationZoneConfig<=14,
+		"FATAL, Illegal Ncs_config for restricted format %"PRIu8"\n", zeroCorrelationZoneConfig );
+    if (prach_fmt<3){
+        if (restricted_Type == 0) NCS = NCS_restricted_TypeA_delta_f_RA_125[zeroCorrelationZoneConfig]; // for TypeA, this is hardcoded. FIXME
+        if (restricted_Type == 1) NCS = NCS_restricted_TypeB_delta_f_RA_125[zeroCorrelationZoneConfig]; // for TypeB, this is hardcoded. FIXME
+    }
+    if (prach_fmt==3){
+        if (restricted_Type == 0) NCS = NCS_restricted_TypeA_delta_f_RA_5[zeroCorrelationZoneConfig]; // for TypeA, this is hardcoded. FIXME
+        if (restricted_Type == 1) NCS = NCS_restricted_TypeB_delta_f_RA_5[zeroCorrelationZoneConfig]; // for TypeB, this is hardcoded. FIXME
+    }
+    if (prach_fmt>3){
+
+    }
+    //NCS = NCS_restricted[zeroCorrelationZoneConfig];
+    nr_fill_du(prach_fmt);
+
+    num_preambles = 64; // compute ZC sequence for 64 possible roots
+    // find first non-zero shift root (stored in preamble_offset)
+    not_found = 1;
+    preamble_offset = 0;
+
+    while (not_found == 1) {
+      // current root depending on rootSequenceIndex
+      int index = (rootSequenceIndex + preamble_offset) % N_ZC;
+
+      if (prach_fmt<4) {
+        // prach_root_sequence_map points to prach_root_sequence_map0_3
+        DevAssert( index < sizeof(prach_root_sequence_map_0_3) / sizeof(prach_root_sequence_map_0_3[0]) );
+      } else {
+        // prach_root_sequence_map points to prach_root_sequence_map4
+        DevAssert( index < sizeof(prach_root_sequence_map_abc) / sizeof(prach_root_sequence_map_abc[0]) );
+      }
+
+      u = prach_root_sequence_map[index];
+
+      uint16_t n_group_ra = 0;
+
+      if ( (nr_du[u]<(N_ZC/3)) && (nr_du[u]>=NCS) ) {
+        n_shift_ra     = nr_du[u]/NCS;
+        d_start        = (nr_du[u]<<1) + (n_shift_ra * NCS);
+        n_group_ra     = N_ZC/d_start;
+        n_shift_ra_bar = max(0,(N_ZC-(nr_du[u]<<1)-(n_group_ra*d_start))/N_ZC);
+      } else if  ( (nr_du[u]>=(N_ZC/3)) && (nr_du[u]<=((N_ZC - NCS)>>1)) ) {
+        n_shift_ra     = (N_ZC - (nr_du[u]<<1))/NCS;
+        d_start        = N_ZC - (nr_du[u]<<1) + (n_shift_ra * NCS);
+        n_group_ra     = nr_du[u]/d_start;
+        n_shift_ra_bar = min(n_shift_ra,max(0,(nr_du[u]- (n_group_ra*d_start))/NCS));
+      } else {
+        n_shift_ra     = 0;
+        n_shift_ra_bar = 0;
+      }
+
+      // This is the number of cyclic shifts for the current root u
+      numshift = (n_shift_ra*n_group_ra) + n_shift_ra_bar;
+
+      // skip to next root and recompute parameters if numshift==0
+      if (numshift>0)
+        not_found = 0;
+      else
+        preamble_offset++;
+    }
+  }
+
+#ifdef PRACH_DEBUG
+
+  if (NCS>0)
+    LOG_I( PHY, "Initializing %u preambles for PRACH (NCS_config %"PRIu8", NCS %u, N_ZC/NCS %u)\n",
+           num_preambles, zeroCorrelationZoneConfig, NCS, N_ZC/NCS );
+
+#endif
+
+  for (i=0; i<num_preambles; i++) {
+    int index = (rootSequenceIndex+i+preamble_offset) % N_ZC;
+
+    if (prach_fmt<4) {
+      // prach_root_sequence_map points to prach_root_sequence_map0_3
+      DevAssert( index < sizeof(prach_root_sequence_map_0_3) / sizeof(prach_root_sequence_map_0_3[0]) );
+    } else {
+      // prach_root_sequence_map points to prach_root_sequence_map4
+      DevAssert( index < sizeof(prach_root_sequence_map_abc) / sizeof(prach_root_sequence_map_abc[0]) );
+    }
+
+    u = prach_root_sequence_map[index];
+
+    inv_u = nr_ZC_inv[u]; // multiplicative inverse of u
+
+
+    // X_u[0] stores the first ZC sequence where the root u has a non-zero number of shifts
+    // for the unrestricted case X_u[0] is the first root indicated by the rootSequenceIndex
+
+    for (k=0; k<N_ZC; k++) {
+      // 420 is the multiplicative inverse of 2 (required since ru is exp[j 2\pi n])
+      X_u[i][k] = ((uint32_t*)nr_ru)[(((k*(1+(inv_u*k)))%N_ZC)*420)%N_ZC];
+    }
+  }
+
+  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_UE_COMPUTE_PRACH, VCD_FUNCTION_OUT);
+
+}
+
+void init_nr_prach_tables(int N_ZC)
+{
+
+  int i,m;
+
+  // Compute the modular multiplicative inverse 'iu' of u s.t. iu*u = 1 mod N_ZC
+  nr_ZC_inv[0] = 0;
+  nr_ZC_inv[1] = 1;
+
+  for (i=2; i<N_ZC; i++) {
+    for (m=2; m<N_ZC; m++)
+      if (((i*m)%N_ZC) == 1) {
+        nr_ZC_inv[i] = m;
+        break;
+      }
+
+#ifdef PRACH_DEBUG
+
+    if (i<16)
+      printf("i %d : inv %d\n",i,nr_ZC_inv[i]);
+
+#endif
+  }
+
+  // Compute quantized roots of unity
+  for (i=0; i<N_ZC; i++) {
+    nr_ru[i<<1]     = (int16_t)(floor(32767.0*cos(2*M_PI*(double)i/N_ZC)));
+    nr_ru[1+(i<<1)] = (int16_t)(floor(32767.0*sin(2*M_PI*(double)i/N_ZC)));
+#ifdef PRACH_DEBUG
+
+    if (i<16)
+      printf("i %d : runity %d,%d\n",i,nr_ru[i<<1],nr_ru[1+(i<<1)]);
+
+#endif
+  }
+}
+
+
+int32_t generate_nr_prach( PHY_VARS_NR_UE *ue, uint8_t eNB_id, uint8_t subframe, uint16_t Nf )
+{
+
+  //lte_frame_type_t frame_type         = ue->frame_parms.frame_type;
+  //uint8_t tdd_config         = ue->frame_parms.tdd_config;
+  uint16_t rootSequenceIndex = ue->frame_parms.prach_config_common.rootSequenceIndex;
+  uint8_t prach_ConfigIndex  = ue->frame_parms.prach_config_common.prach_ConfigInfo.prach_ConfigIndex;
+  uint8_t Ncs_config         = ue->frame_parms.prach_config_common.prach_ConfigInfo.zeroCorrelationZoneConfig;
+  uint8_t restricted_set     = ue->frame_parms.prach_config_common.prach_ConfigInfo.highSpeedFlag;
+  //uint8_t n_ra_prboffset     = ue->frame_parms.prach_config_common.prach_ConfigInfo.prach_FreqOffset;
+  uint8_t preamble_index     = ue->prach_resources[eNB_id]->ra_PreambleIndex;
+  uint8_t tdd_mapindex       = ue->prach_resources[eNB_id]->ra_TDD_map_index;
+  int16_t *prachF           = ue->prach_vars[eNB_id]->prachF;
+  static int16_t prach_tmp[45600*2] __attribute__((aligned(32)));
+  int16_t *prach            = prach_tmp;
+  int16_t *prach2;
+  int16_t amp               = ue->prach_vars[eNB_id]->amp;
+  int16_t Ncp;
+  uint8_t n_ra_prb;
+  uint16_t NCS;
+  uint16_t *prach_root_sequence_map;
+  uint16_t preamble_offset,preamble_shift;
+  uint16_t preamble_index0,n_shift_ra,n_shift_ra_bar;
+  uint16_t d_start,numshift;
+
+  uint16_t prach_fmt = get_nr_prach_fmt(prach_ConfigIndex);
+  //uint8_t Nsp=2;
+  //uint8_t f_ra,t1_ra;
+  uint16_t N_ZC = (prach_fmt<4)?839:139;
+  uint8_t not_found;
+  int k;
+  int16_t *Xu;
+  uint16_t u;
+  int32_t Xu_re,Xu_im;
+  uint16_t offset,offset2;
+  int prach_start;
+  int i, prach_len;
+  uint16_t first_nonzero_root_idx=0;
+
+#if defined(EXMIMO) || defined(OAI_USRP)
+  prach_start =  (ue->rx_offset+subframe*ue->frame_parms.samples_per_tti-ue->hw_timing_advance-ue->N_TA_offset);
+#ifdef PRACH_DEBUG
+    LOG_I(PHY,"[UE %d] prach_start %d, rx_offset %d, hw_timing_advance %d, N_TA_offset %d\n", ue->Mod_id,
+        prach_start,
+        ue->rx_offset,
+        ue->hw_timing_advance,
+        ue->N_TA_offset);
+#endif
+
+  if (prach_start<0)
+    prach_start+=(ue->frame_parms.samples_per_tti*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME);
+
+  if (prach_start>=(ue->frame_parms.samples_per_tti*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME))
+    prach_start-=(ue->frame_parms.samples_per_tti*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME);
+
+#else //normal case (simulation)
+  prach_start = subframe*ue->frame_parms.samples_per_tti-ue->N_TA_offset;
+  LOG_I(PHY,"[UE %d] prach_start %d, rx_offset %d, hw_timing_advance %d, N_TA_offset %d\n", ue->Mod_id,
+    prach_start,
+    ue->rx_offset,
+    ue->hw_timing_advance,
+    ue->N_TA_offset);
+
+#endif
+
+
+  // First compute physical root sequence
+  /************************************************************************
+  * 4G and NR NCS tables are slightly different and depend on prach format
+  * Table 6.3.3.1-5:  for preamble formats with delta_f_RA = 1.25 Khz (formats 0,1,2)
+  * Table 6.3.3.1-6:  for preamble formats with delta_f_RA = 5 Khz (formats 3)
+  * NOTE: Restricted set type B is not implemented
+  *************************************************************************/
+
+  int restricted_Type = 0; //this is hardcoded ('0' for restricted_TypeA; and '1' for restricted_TypeB). FIXME
+  if (prach_fmt<3){
+    if (restricted_set == 0) {
+      NCS = NCS_unrestricted_delta_f_RA_125[Ncs_config];
+    } else {
+      if (restricted_Type == 0) NCS = NCS_restricted_TypeA_delta_f_RA_125[Ncs_config]; // for TypeA, this is hardcoded. FIXME
+      if (restricted_Type == 1) NCS = NCS_restricted_TypeB_delta_f_RA_125[Ncs_config]; // for TypeB, this is hardcoded. FIXME
+    }
+  }
+  if (prach_fmt==3){
+    if (restricted_set == 0) {
+      NCS = NCS_unrestricted_delta_f_RA_5[Ncs_config];
+    } else {
+      if (restricted_Type == 0) NCS = NCS_restricted_TypeA_delta_f_RA_5[Ncs_config]; // for TypeA, this is hardcoded. FIXME
+      if (restricted_Type == 1) NCS = NCS_restricted_TypeB_delta_f_RA_5[Ncs_config]; // for TypeB, this is hardcoded. FIXME
+    }
+  }
+  if (prach_fmt>3){
+    NCS = NCS_unrestricted_delta_f_RA_15[Ncs_config];
+  }
+
+  n_ra_prb = ue->frame_parms.prach_config_common.prach_ConfigInfo.prach_FreqOffset;
+//  n_ra_prb = get_nr_prach_prb_offset(&(ue->frame_parms),
+//                                     ue->frame_parms.prach_config_common.prach_ConfigInfo.prach_ConfigIndex,
+//                                     ue->frame_parms.prach_config_common.prach_ConfigInfo.prach_FreqOffset,
+//                                     tdd_mapindex,
+//                                     Nf,
+//                                     prach_fmt);
+  prach_root_sequence_map = (prach_fmt<4) ? prach_root_sequence_map_0_3 : prach_root_sequence_map_abc;
+
+  /*
+  // this code is not part of get_prach_prb_offset
+  if (frame_type == TDD) { // TDD
+
+    if (tdd_preamble_map[prach_ConfigIndex][tdd_config].num_prach==0) {
+      LOG_E( PHY, "[PHY][UE %"PRIu8"] Illegal prach_ConfigIndex %"PRIu8" for ", ue->Mod_id, prach_ConfigIndex );
+    }
+
+    // adjust n_ra_prboffset for frequency multiplexing (p.36 36.211)
+    f_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[tdd_mapindex].f_ra;
+
+    if (prach_fmt < 4) {
+      if ((f_ra&1) == 0) {
+        n_ra_prb = n_ra_prboffset + 6*(f_ra>>1);
+      } else {
+        n_ra_prb = ue->frame_parms.N_RB_UL - 6 - n_ra_prboffset + 6*(f_ra>>1);
+      }
+    } else {
+      if ((tdd_config >2) && (tdd_config<6))
+        Nsp = 2;
+
+      t1_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[0].t1_ra;
+
+      if ((((Nf&1)*(2-Nsp)+t1_ra)&1) == 0) {
+        n_ra_prb = 6*f_ra;
+      } else {
+        n_ra_prb = ue->frame_parms.N_RB_UL - 6*(f_ra+1);
+      }
+    }
+  }
+  */
+
+  // This is the relative offset (for unrestricted case) in the root sequence table (5.7.2-4 from 36.211) for the given preamble index
+  preamble_offset = ((NCS==0)? preamble_index : (preamble_index/(N_ZC/NCS)));
+
+  if (restricted_set == 0) {
+    // This is the \nu corresponding to the preamble index
+    preamble_shift  = (NCS==0)? 0 : (preamble_index % (N_ZC/NCS));
+    preamble_shift *= NCS;
+  } else { // This is the high-speed case
+
+#ifdef PRACH_DEBUG
+    LOG_I(PHY,"[UE %d] High-speed mode, NCS_config %d\n",ue->Mod_id,Ncs_config);
+#endif
+
+    not_found = 1;
+    preamble_index0 = preamble_index;
+    // set preamble_offset to initial rootSequenceIndex and look if we need more root sequences for this
+    // preamble index and find the corresponding cyclic shift
+    preamble_offset = 0; // relative rootSequenceIndex;
+
+    while (not_found == 1) {
+      // current root depending on rootSequenceIndex and preamble_offset
+      int index = (rootSequenceIndex + preamble_offset) % N_ZC;
+
+      if (prach_fmt<4) {
+        // prach_root_sequence_map points to prach_root_sequence_map0_3
+        DevAssert( index < sizeof(prach_root_sequence_map_0_3) / sizeof(prach_root_sequence_map_0_3[0]) );
+      } else {
+        // prach_root_sequence_map points to prach_root_sequence_map4
+        DevAssert( index < sizeof(prach_root_sequence_map_abc) / sizeof(prach_root_sequence_map_abc[0]) );
+      }
+
+      u = prach_root_sequence_map[index];
+
+      uint16_t n_group_ra = 0;
+
+      if ( (nr_du[u]<(N_ZC/3)) && (nr_du[u]>=NCS) ) {
+        n_shift_ra     = nr_du[u]/NCS;
+        d_start        = (nr_du[u]<<1) + (n_shift_ra * NCS);
+        n_group_ra     = N_ZC/d_start;
+        n_shift_ra_bar = max(0,(N_ZC-(nr_du[u]<<1)-(n_group_ra*d_start))/N_ZC);
+      } else if  ( (nr_du[u]>=(N_ZC/3)) && (nr_du[u]<=((N_ZC - NCS)>>1)) ) {
+        n_shift_ra     = (N_ZC - (nr_du[u]<<1))/NCS;
+        d_start        = N_ZC - (nr_du[u]<<1) + (n_shift_ra * NCS);
+        n_group_ra     = nr_du[u]/d_start;
+        n_shift_ra_bar = min(n_shift_ra,max(0,(nr_du[u]- (n_group_ra*d_start))/NCS));
+      } else {
+        n_shift_ra     = 0;
+        n_shift_ra_bar = 0;
+      }
+
+      // This is the number of cyclic shifts for the current root u
+      numshift = (n_shift_ra*n_group_ra) + n_shift_ra_bar;
+
+      if (numshift>0 && preamble_index0==preamble_index)
+        first_nonzero_root_idx = preamble_offset;
+
+      if (preamble_index0 < numshift) {
+        not_found      = 0;
+        preamble_shift = (d_start * (preamble_index0/n_shift_ra)) + ((preamble_index0%n_shift_ra)*NCS);
+
+      } else { // skip to next rootSequenceIndex and recompute parameters
+        preamble_offset++;
+        preamble_index0 -= numshift;
+      }
+    }
+  }
+
+  // now generate PRACH signal
+#ifdef PRACH_DEBUG
+
+  if (NCS>0)
+    LOG_I(PHY,"Generate PRACH for RootSeqIndex %d, Preamble Index %d, NCS %d (NCS_config %d, N_ZC/NCS %d) n_ra_prb %d: Preamble_offset %d, Preamble_shift %d\n",
+          rootSequenceIndex,preamble_index,NCS,Ncs_config,N_ZC/NCS,n_ra_prb,
+          preamble_offset,preamble_shift);
+
+#endif
+
+  //  nsymb = (frame_parms->Ncp==0) ? 14:12;
+  //  subframe_offset = (unsigned int)frame_parms->ofdm_symbol_size*subframe*nsymb;
+
+  k = (12*n_ra_prb) - 6*ue->frame_parms.N_RB_UL;
+
+  if (k<0)
+    k+=ue->frame_parms.ofdm_symbol_size;
+
+  k*=12;
+  k+=13;
+
+  Xu = (int16_t*)ue->X_u[preamble_offset-first_nonzero_root_idx];
+
+  /*
+    k+=(12*ue->frame_parms.first_carrier_offset);
+    if (k>(12*ue->frame_parms.ofdm_symbol_size))
+    k-=(12*ue->frame_parms.ofdm_symbol_size);
+  */
+  k*=2;
+
+  switch (ue->frame_parms.N_RB_UL) {
+  case 6:
+    memset((void*)prachF,0,4*1536);
+    break;
+
+  case 15:
+    memset((void*)prachF,0,4*3072);
+    break;
+
+  case 25:
+    memset((void*)prachF,0,4*6144);
+    break;
+
+  case 50:
+    memset((void*)prachF,0,4*12288);
+    break;
+
+  case 75:
+    memset((void*)prachF,0,4*18432);
+    break;
+
+  case 100:
+    if (ue->frame_parms.threequarter_fs == 0)
+      memset((void*)prachF,0,4*24576);
+    else
+      memset((void*)prachF,0,4*18432);
+    break;
+
+  case 106:
+    memset((void*)prachF,0,4*24576);
+    break;
+}
+
+  /********************************************************
+   *
+   * In function init_prach_tables:
+   * to compute quantized roots of unity ru(n) = 32767 * exp j*[ (2 * PI * n) / N_ZC ]
+   *
+   * In compute_prach_seq:
+   * to calculate Xu = DFT xu = xu (inv_u*k) * Xu[0] (This is a Zadoff-Chou sequence property: DFT ZC sequence is another ZC sequence)
+   *
+   * In generate_prach:
+   * to do the cyclic-shifted DFT by multiplying Xu[k] * ru[k*preamble_shift] as:
+   * If X[k] = DFT x(n) -> X_shifted[k] = DFT x(n+preamble_shift) = X[k] * exp -j*[ (2*PI*k*preamble_shift) / N_ZC ]
+   *
+   *********************************************************/
+
+  for (offset=0,offset2=0; offset<N_ZC; offset++,offset2+=preamble_shift) {
+
+    if (offset2 >= N_ZC)
+      offset2 -= N_ZC;
+
+    Xu_re = (((int32_t)Xu[offset<<1]*amp)>>15);
+    Xu_im = (((int32_t)Xu[1+(offset<<1)]*amp)>>15);
+    prachF[k++]= ((Xu_re*nr_ru[offset2<<1]) - (Xu_im*nr_ru[1+(offset2<<1)]))>>15;
+    prachF[k++]= ((Xu_im*nr_ru[offset2<<1]) + (Xu_re*nr_ru[1+(offset2<<1)]))>>15;
+
+    if (k==(12*2*ue->frame_parms.ofdm_symbol_size))
+      k=0;
+  }
+
+  int mu = 1; // numerology is hardcoded. FIXME!!!
+  switch (prach_fmt) {
+  case 0:
+    Ncp = 3168;
+    break;
+
+  case 1:
+    Ncp = 21024;
+    break;
+
+  case 2:
+    Ncp = 4688;
+    break;
+
+  case 3:
+    Ncp = 3168;
+    break;
+
+  case 0xa1:
+    Ncp = 288/(1<<mu);
+    break;
+
+  case 0xa2:
+    Ncp = 576/(1<<mu);
+    break;
+
+  case 0xa3:
+    Ncp = 864/(1<<mu);
+    break;
+
+  case 0xb1:
+    Ncp = 216/(1<<mu);
+    break;
+
+  case 0xb2:
+    Ncp = 360/(1<<mu);
+    break;
+
+  case 0xb3:
+    Ncp = 504/(1<<mu);
+    break;
+
+  case 0xb4:
+    Ncp = 936/(1<<mu);
+    break;
+
+  case 0xc0:
+    Ncp = 1240/(1<<mu);
+    break;
+
+  case 0xc2:
+    Ncp = 2048/(1<<mu);
+    break;
+
+  default:
+    Ncp = 3168;
+    break;
+  }
+#if 0 // code for LTE
+  switch (prach_fmt) {
+  case 0:
+    Ncp = 3168;
+    break;
+
+  case 1:
+  case 3:
+    Ncp = 21024;
+    break;
+
+  case 2:
+    Ncp = 6240;
+    break;
+
+  case 4:
+    Ncp = 448;
+    break;
+
+  default:
+    Ncp = 3168;
+    break;
+  }
+
+  switch (ue->frame_parms.N_RB_UL) {
+  case 6:
+    Ncp>>=4;
+    prach+=4; // makes prach2 aligned to 128-bit
+    break;
+
+  case 15:
+    Ncp>>=3;
+    break;
+
+  case 25:
+    Ncp>>=2;
+    break;
+
+  case 50:
+    Ncp>>=1;
+    break;
+
+  case 75:
+    Ncp=(Ncp*3)>>2;
+    break;
+  }
+#endif
+  if (ue->frame_parms.threequarter_fs == 1)
+    Ncp=(Ncp*3)>>2;
+
+  prach2 = prach+(Ncp<<1);
+
+  // do IDFT
+  switch (ue->frame_parms.N_RB_UL) {
+  case 6:
+    if (prach_fmt == 4) {
+      idft256(prachF,prach2,1);
+      memmove( prach, prach+512, Ncp<<2 );
+      prach_len = 256+Ncp;
+    } else {
+      idft1536(prachF,prach2,1);
+      memmove( prach, prach+3072, Ncp<<2 );
+      prach_len = 1536+Ncp;
+
+      if (prach_fmt>1) {
+        memmove( prach2+3072, prach2, 6144 );
+        prach_len = 2*1536+Ncp;
+      }
+    }
+
+    break;
+
+  case 15:
+    if (prach_fmt == 4) {
+      idft512(prachF,prach2,1);
+      //TODO: account for repeated format in dft output
+      memmove( prach, prach+1024, Ncp<<2 );
+      prach_len = 512+Ncp;
+    } else {
+      idft3072(prachF,prach2,1);
+      memmove( prach, prach+6144, Ncp<<2 );
+      prach_len = 3072+Ncp;
+
+      if (prach_fmt>1) {
+        memmove( prach2+6144, prach2, 12288 );
+        prach_len = 2*3072+Ncp;
+      }
+    }
+
+    break;
+
+  case 25:
+  default:
+    if (prach_fmt == 4) {
+      idft1024(prachF,prach2,1);
+      memmove( prach, prach+2048, Ncp<<2 );
+      prach_len = 1024+Ncp;
+    } else {
+      idft6144(prachF,prach2,1);
+      /*for (i=0;i<6144*2;i++)
+      prach2[i]<<=1;*/
+      memmove( prach, prach+12288, Ncp<<2 );
+      prach_len = 6144+Ncp;
+
+      if (prach_fmt>1) {
+        memmove( prach2+12288, prach2, 24576 );
+        prach_len = 2*6144+Ncp;
+      }
+    }
+
+    break;
+
+  case 50:
+    if (prach_fmt == 4) {
+      idft2048(prachF,prach2,1);
+      memmove( prach, prach+4096, Ncp<<2 );
+      prach_len = 2048+Ncp;
+    } else {
+      idft12288(prachF,prach2,1);
+      memmove( prach, prach+24576, Ncp<<2 );
+      prach_len = 12288+Ncp;
+
+      if (prach_fmt>1) {
+        memmove( prach2+24576, prach2, 49152 );
+        prach_len = 2*12288+Ncp;
+      }
+    }
+
+    break;
+
+  case 75:
+    if (prach_fmt == 4) {
+      idft3072(prachF,prach2,1);
+      //TODO: account for repeated format in dft output
+      memmove( prach, prach+6144, Ncp<<2 );
+      prach_len = 3072+Ncp;
+    } else {
+      idft18432(prachF,prach2,1);
+      memmove( prach, prach+36864, Ncp<<2 );
+      prach_len = 18432+Ncp;
+
+      if (prach_fmt>1) {
+        memmove( prach2+36834, prach2, 73728 );
+        prach_len = 2*18432+Ncp;
+      }
+    }
+
+    break;
+
+  case 100:
+    if (ue->frame_parms.threequarter_fs == 0) {
+      if (prach_fmt == 4) {
+        idft4096(prachF,prach2,1);
+        memmove( prach, prach+8192, Ncp<<2 );
+        prach_len = 4096+Ncp;
+      } else {
+        idft24576(prachF,prach2,1);
+        memmove( prach, prach+49152, Ncp<<2 );
+        prach_len = 24576+Ncp;
+        if (prach_fmt>1) {
+          memmove( prach2+49152, prach2, 98304 );
+          prach_len = 2* 24576+Ncp;
+        }
+      }
+    }
+    else {
+      if (prach_fmt == 4) {
+        idft3072(prachF,prach2,1);
+        //TODO: account for repeated format in dft output
+        memmove( prach, prach+6144, Ncp<<2 );
+        prach_len = 3072+Ncp;
+      } else {
+        idft18432(prachF,prach2,1);
+        memmove( prach, prach+36864, Ncp<<2 );
+        prach_len = 18432+Ncp;
+        printf("Generated prach for 100 PRB, 3/4 sampling\n");
+        if (prach_fmt>1) {
+          memmove( prach2+36834, prach2, 73728 );
+          prach_len = 2*18432+Ncp;
+        }
+      }
+    }
+    break;
+
+  case 106:
+    if (prach_fmt == 0) {
+      idft24576(prachF,prach2,1);
+      memmove(prach, prach+49152, Ncp<<2);
+      prach_len = 24576+Ncp;
+    }
+    if (prach_fmt == 1) {
+      idft24576(prachF,prach2,1);
+      memmove(prach2+49152, prach2, 98304);
+      memmove(prach, prach+49152, Ncp<<2);
+      prach_len = 2 * 24576 + Ncp;
+    }
+    if (prach_fmt == 2) {
+      idft24576(prachF,prach2,1);
+      memmove(prach2+49152, prach2, 98304);
+      memmove(prach2+98304, prach2, 98304);
+      memmove(prach, prach+49152, Ncp<<2);
+      prach_len = 4 * 24576 + Ncp;
+    }
+    if (prach_fmt == 3) {
+      idft6144(prachF,prach2,1);
+      memmove(prach2+6144, prach2, 12288);
+      memmove(prach2+12288, prach2, 12288);
+      memmove(prach, prach+12288, Ncp<<2);
+      prach_len = 4 * 6144 + Ncp;
+    }
+// For FR2
+    if (prach_fmt == 0xa1) { // we consider numderology mu = 1
+      idft1024(prachF,prach2,1);
+      memmove(prach2+2048, prach2, 4096);
+      memmove(prach, prach+2048, Ncp<<2);
+      prach_len = 2 * 1024 + Ncp;
+    }
+#if 0
+    if (prach_fmt == 0xa2) {
+    }
+    if (prach_fmt == 0xa3) {
+    }
+    if (prach_fmt == 0xb1) {
+    }
+    if (prach_fmt == 0xb2) {
+    }
+    if (prach_fmt == 0xb3) {
+    }
+    if (prach_fmt == 0xb4) {
+    }
+    if (prach_fmt == 0xc0) {
+    }
+    if (prach_fmt == 0xc2) {
+    }
+#endif
+    break;
+  }
+
+  //LOG_I(PHY,"prach_len=%d\n",prach_len);
+
+//  AssertFatal(prach_fmt<4,
+//	      "prach_fmt4 not fully implemented" );
+#if defined(EXMIMO) || defined(OAI_USRP) || defined(OAI_BLADERF) || defined(OAI_LMSSDR)
+  int j;
+  int overflow = prach_start + prach_len - LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*ue->frame_parms.samples_per_tti;
+  LOG_I( PHY, "prach_start=%d, overflow=%d\n", prach_start, overflow );
+
+  for (i=prach_start,j=0; i<min(ue->frame_parms.samples_per_tti*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME,prach_start+prach_len); i++,j++) {
+    ((int16_t*)ue->common_vars.txdata[0])[2*i] = prach[2*j];
+    ((int16_t*)ue->common_vars.txdata[0])[2*i+1] = prach[2*j+1];
+  }
+
+  for (i=0; i<overflow; i++,j++) {
+    ((int16_t*)ue->common_vars.txdata[0])[2*i] = prach[2*j];
+    ((int16_t*)ue->common_vars.txdata[0])[2*i+1] = prach[2*j+1];
+  }
+#if defined(EXMIMO)
+  // handle switch before 1st TX subframe, guarantee that the slot prior to transmission is switch on
+  for (k=prach_start - (ue->frame_parms.samples_per_tti>>1) ; k<prach_start ; k++) {
+    if (k<0)
+      ue->common_vars.txdata[0][k+ue->frame_parms.samples_per_tti*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME] &= 0xFFFEFFFE;
+    else if (k>(ue->frame_parms.samples_per_tti*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME))
+      ue->common_vars.txdata[0][k-ue->frame_parms.samples_per_tti*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME] &= 0xFFFEFFFE;
+    else
+      ue->common_vars.txdata[0][k] &= 0xFFFEFFFE;
+  }
+#endif
+#else
+
+  for (i=0; i<prach_len; i++) {
+    ((int16_t*)(&ue->common_vars.txdata[0][prach_start]))[2*i] = prach[2*i];
+    ((int16_t*)(&ue->common_vars.txdata[0][prach_start]))[2*i+1] = prach[2*i+1];
+  }
+
+#endif
+
+
+
+#if defined(PRACH_WRITE_OUTPUT_DEBUG)
+  LOG_M("prach_txF0.m","prachtxF0",prachF,prach_len-Ncp,1,1);
+  LOG_M("prach_tx0.m","prachtx0",prach+(Ncp<<1),prach_len-Ncp,1,1);
+  LOG_M("txsig.m","txs",(int16_t*)(&ue->common_vars.txdata[0][0]),2*ue->frame_parms.samples_per_tti,1,1);
+  exit(-1);
+#endif
+
+  return signal_energy( (int*)prach, 256 );
+}
+

openair1/PHY/NR_UE_TRANSPORT/nr_transport_ue.h

@@ -34,6 +34,8 @@
 #include <limits.h>
 #include "PHY/impl_defs_top.h"
 
+
+
 //#include "PHY/defs_nr_UE.h"
 //#include "../LTE_TRANSPORT/dci.h"
 //#include "../LTE_TRANSPORT/mdci.h"

openair1/PHY/defs_nr_common.h

@@ -134,6 +134,29 @@ typedef struct {
   nr_reg_t reg_list[NR_NB_REG_PER_CCE];
 } nr_cce_t;
 
+
+/// PRACH-ConfigInfo from 36.331 RRC spec
+typedef struct {
+  /// Parameter: prach-ConfigurationIndex, see TS 36.211 (5.7.1). \vr{[0..63]}
+  uint8_t prach_ConfigIndex;
+  /// Parameter: High-speed-flag, see TS 36.211 (5.7.2). \vr{[0..1]} 1 corresponds to Restricted set and 0 to Unrestricted set.
+  uint8_t highSpeedFlag;
+  /// Parameter: \f$N_\text{CS}\f$, see TS 36.211 (5.7.2). \vr{[0..15]}\n Refer to table 5.7.2-2 for preamble format 0..3 and to table 5.7.2-3 for preamble format 4.
+  uint8_t zeroCorrelationZoneConfig;
+  /// Parameter: prach-FrequencyOffset, see TS 36.211 (5.7.1). \vr{[0..94]}\n For TDD the value range is dependent on the value of \ref prach_ConfigIndex.
+  uint8_t prach_FreqOffset;
+} NR_PRACH_CONFIG_INFO;
+
+/// PRACH-ConfigSIB or PRACH-Config
+typedef struct {
+  /// Parameter: RACH_ROOT_SEQUENCE, see TS 36.211 (5.7.1). \vr{[0..837]}
+  uint16_t rootSequenceIndex;
+  /// prach_Config_enabled=1 means enabled. \vr{[0..1]}
+  uint8_t prach_Config_enabled;
+  /// PRACH Configuration Information
+  NR_PRACH_CONFIG_INFO prach_ConfigInfo;
+} NR_PRACH_CONFIG_COMMON;
+
 typedef struct NR_DL_FRAME_PARMS {
   /// frequency range
   nr_frequency_range_e freq_range;
@@ -198,12 +221,15 @@ typedef struct NR_DL_FRAME_PARMS {
   uint8_t ttis_per_subframe;
   /// NR number of slots per tti . Assumption only 2 Slot per TTI is supported (Slot Config 1 in 38.211)
   uint8_t slots_per_tti;
+//#endif
   /// Number of Physical transmit antennas in node
   uint8_t nb_antennas_tx;
   /// Number of Receive antennas in node
   uint8_t nb_antennas_rx;
   /// Number of common transmit antenna ports in eNodeB (1 or 2)
   uint8_t nb_antenna_ports_eNB;
+  /// PRACH_CONFIG
+  NR_PRACH_CONFIG_COMMON prach_config_common;
   /// Cyclic Prefix for DL (0=Normal CP, 1=Extended CP)
   lte_prefix_type_t Ncp;
   /// shift of pilot position in one RB

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

@@ -1450,7 +1450,143 @@ endif*/
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_ULSCH_COMMON,VCD_FUNCTION_OUT);
 
 }
+#endif //0
 
+void ue_nr_prach_procedures(PHY_VARS_NR_UE *ue,UE_nr_rxtx_proc_t *proc,uint8_t eNB_id,uint8_t abstraction_flag,runmode_t mode) {
+
+  int frame_tx = proc->frame_tx;
+  int nr_tti_tx = proc->nr_tti_tx;
+  int prach_power;
+  PRACH_RESOURCES_t prach_resources_local;
+
+  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_PRACH, VCD_FUNCTION_IN);
+
+  ue->generate_prach=0;
+
+  if (ue->mac_enabled==0){
+    ue->prach_resources[eNB_id] = &prach_resources_local;
+    prach_resources_local.ra_RNTI = 0xbeef;
+    prach_resources_local.ra_PreambleIndex = 0;
+  }
+
+  if (ue->mac_enabled==1){
+    // ask L2 for RACH transport
+    if ((mode != rx_calib_ue) && (mode != rx_calib_ue_med) && (mode != rx_calib_ue_byp) && (mode != no_L2_connect) ) {
+      LOG_D(PHY,"Getting PRACH resources\n");
+      //ue->prach_resources[eNB_id] = mac_xface->ue_get_rach(ue->Mod_id,
+      //           ue->CC_id,
+      //           frame_tx,
+      //           eNB_id,
+      //           nr_tti_tx);
+      //LOG_D(PHY,"Got prach_resources for eNB %d address %p, RRCCommon %p\n",eNB_id,ue->prach_resources[eNB_id],UE_mac_inst[ue->Mod_id].radioResourceConfigCommon);
+      LOG_D(PHY,"Prach resources %p\n",ue->prach_resources[eNB_id]);
+    }
+  }
+
+  if (ue->prach_resources[eNB_id]!=NULL) {
+
+    ue->generate_prach=1;
+    ue->prach_cnt=0;
+#ifdef SMBV
+    ue->prach_resources[eNB_id]->ra_PreambleIndex = 19;
+#endif
+#ifdef OAI_EMU
+    ue->prach_PreambleIndex=ue->prach_resources[eNB_id]->ra_PreambleIndex;
+#endif
+
+    if (abstraction_flag == 0) {
+
+      LOG_I(PHY,"mode %d\n",mode);
+
+      if ((ue->mac_enabled==1) && (mode != calib_prach_tx)) {
+  ue->tx_power_dBm[nr_tti_tx] = ue->prach_resources[eNB_id]->ra_PREAMBLE_RECEIVED_TARGET_POWER+get_PL(ue->Mod_id,ue->CC_id,eNB_id);
+      }
+      else {
+  ue->tx_power_dBm[nr_tti_tx] = ue->tx_power_max_dBm;
+  ue->prach_resources[eNB_id]->ra_PreambleIndex = 19;
+      }
+
+      LOG_I(PHY,"[UE  %d][RAPROC] Frame %d, nr_tti_rx %d : Generating PRACH, preamble %d,PL %d,  P0_PRACH %d, TARGET_RECEIVED_POWER %d dBm, PRACH TDD Resource index %d, RA-RNTI %d\n",
+      ue->Mod_id,
+      frame_tx,
+      nr_tti_tx,
+      ue->prach_resources[eNB_id]->ra_PreambleIndex,
+    get_PL(ue->Mod_id,ue->CC_id,eNB_id),
+    ue->tx_power_dBm[nr_tti_tx],
+      ue->prach_resources[eNB_id]->ra_PREAMBLE_RECEIVED_TARGET_POWER,
+      ue->prach_resources[eNB_id]->ra_TDD_map_index,
+      ue->prach_resources[eNB_id]->ra_RNTI);
+
+      ue->tx_total_RE[nr_tti_tx] = 96;
+
+#if defined(EXMIMO) || defined(OAI_USRP) || defined(OAI_BLADERF) || defined(OAI_LMSSDR) || defined(OAI_ADRV9371_ZC706)
+      ue->prach_vars[eNB_id]->amp = get_tx_amp(ue->tx_power_dBm[nr_tti_tx],
+                 ue->tx_power_max_dBm,
+                 ue->frame_parms.N_RB_UL,
+                 6);
+#else
+      ue->prach_vars[eNB_id]->amp = AMP;
+#endif
+      if ((mode == calib_prach_tx) && (((proc->frame_tx&0xfffe)%100)==0))
+  LOG_D(PHY,"[UE  %d][RAPROC] Frame %d, nr_tti_rx %d : PRACH TX power %d dBm, amp %d\n",
+        ue->Mod_id,
+        proc->frame_rx,
+        proc->nr_tti_tx,
+        ue->tx_power_dBm[nr_tti_tx],
+        ue->prach_vars[eNB_id]->amp);
+
+
+      //      start_meas(&ue->tx_prach);
+      VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_GENERATE_PRACH, VCD_FUNCTION_IN);
+
+      //prach_power = generate_prach(ue,eNB_id,nr_tti_tx,frame_tx);
+      prach_power = generate_nr_prach(ue,eNB_id,nr_tti_tx,frame_tx);
+
+      VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_GENERATE_PRACH, VCD_FUNCTION_OUT);
+      //      stop_meas(&ue->tx_prach);
+      LOG_D(PHY,"[UE  %d][RAPROC] PRACH PL %d dB, power %d dBm, digital power %d dB (amp %d)\n",
+      ue->Mod_id,
+      get_PL(ue->Mod_id,ue->CC_id,eNB_id),
+      ue->tx_power_dBm[nr_tti_tx],
+      dB_fixed(prach_power),
+      ue->prach_vars[eNB_id]->amp);
+    } else {
+      //UE_transport_info[ue->Mod_id][ue->CC_id].cntl.prach_flag=1;
+      //UE_transport_info[ue->Mod_id][ue->CC_id].cntl.prach_id=ue->prach_resources[eNB_id]->ra_PreambleIndex;
+    }
+
+    if (ue->mac_enabled==1){
+      //mac_xface->Msg1_transmitted(ue->Mod_id,
+      //    ue->CC_id,
+      //    frame_tx,
+      //    eNB_id);
+    }
+
+    LOG_I(PHY,"[UE  %d][RAPROC] Frame %d, nr_tti_rx %d: Generating PRACH (eNB %d) preamble index %d for UL, TX power %d dBm (PL %d dB), l3msg \n",
+    ue->Mod_id,frame_tx,nr_tti_tx,eNB_id,
+    ue->prach_resources[eNB_id]->ra_PreambleIndex,
+    ue->prach_resources[eNB_id]->ra_PREAMBLE_RECEIVED_TARGET_POWER+get_PL(ue->Mod_id,ue->CC_id,eNB_id),
+    get_PL(ue->Mod_id,ue->CC_id,eNB_id));
+
+  }
+
+
+  // if we're calibrating the PRACH kill the pointer to its resources so that the RA protocol doesn't continue
+  if (mode == calib_prach_tx)
+    ue->prach_resources[eNB_id]=NULL;
+
+  LOG_D(PHY,"[UE %d] frame %d nr_tti_rx %d : generate_prach %d, prach_cnt %d\n",
+  ue->Mod_id,frame_tx,nr_tti_tx,ue->generate_prach,ue->prach_cnt);
+
+  ue->prach_cnt++;
+
+  if (ue->prach_cnt==3)
+    ue->generate_prach=0;
+
+  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_PRACH, VCD_FUNCTION_OUT);
+}
+
+#if 0
 void ue_prach_procedures(PHY_VARS_NR_UE *ue,UE_nr_rxtx_proc_t *proc,uint8_t eNB_id,uint8_t abstraction_flag,runmode_t mode) {
 
   int frame_tx = proc->frame_tx;
@@ -2482,7 +2618,195 @@ void ue_pucch_procedures(PHY_VARS_NR_UE *ue,UE_nr_rxtx_proc_t *proc,uint8_t eNB_
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_PUCCH,VCD_FUNCTION_OUT);
 
 }
+#endif //0
+
+void phy_procedures_nrUE_TX(PHY_VARS_NR_UE *ue,UE_nr_rxtx_proc_t *proc,uint8_t eNB_id,uint8_t abstraction_flag,runmode_t mode,relaying_type_t r_type) {
+
+
+  NR_DL_FRAME_PARMS *frame_parms=&ue->frame_parms;
+  //int32_t ulsch_start=0;
+  int nr_tti_tx = proc->nr_tti_tx;
+  int frame_tx = proc->frame_tx;
+  unsigned int aa;
+  uint8_t isSubframeSRS;
+
+  uint8_t next1_thread_id = ue->current_thread_id[proc->nr_tti_rx]== (RX_NB_TH-1) ? 0:(ue->current_thread_id[proc->nr_tti_rx]+1);
+  uint8_t next2_thread_id = next1_thread_id== (RX_NB_TH-1) ? 0:(next1_thread_id+1);
+
+  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX,VCD_FUNCTION_IN);
+
+  LOG_D(PHY,"****** start TX-Chain for AbsSubframe %d.%d ******\n", frame_tx, nr_tti_tx);
+#if T_TRACER
+  T(T_UE_PHY_UL_TICK, T_INT(ue->Mod_id), T_INT(frame_tx%1024), T_INT(nr_tti_tx));
+#endif
+
+  ue->generate_ul_signal[eNB_id] = 0;
+#if UE_TIMING_TRACE
+  start_meas(&ue->phy_proc_tx);
+#endif
+
+#ifdef EMOS
+  //phy_procedures_emos_UE_TX(next_slot);
+#endif
+
+  ue->tx_power_dBm[nr_tti_tx]=-127;
+
+  if (abstraction_flag==0) {
+    for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
+      memset(&ue->common_vars.txdataF[aa][nr_tti_tx*frame_parms->ofdm_symbol_size*frame_parms->symbols_per_tti],
+       0,
+       frame_parms->ofdm_symbol_size*frame_parms->symbols_per_tti*sizeof(int32_t));
+    }
+  }
+
+  if (ue->UE_mode[eNB_id] != PRACH) {
+    // check cell srs nr_tti_rx and ue srs nr_tti_rx. This has an impact on pusch encoding
+    //isSubframeSRS = nr_is_srs_occasion_common(&ue->frame_parms,proc->frame_tx,proc->nr_tti_tx);
+
+    //ue_compute_srs_occasion(ue,proc,eNB_id,isSubframeSRS);
+
+    //ue_ulsch_uespec_procedures(ue,proc,eNB_id,abstraction_flag);
+
+  }
+
+  if (ue->UE_mode[eNB_id] == PUSCH) {
+      // check if we need to use PUCCH 1a/1b
+      //ue_pucch_procedures(ue,proc,eNB_id,abstraction_flag);
+      // check if we need to use SRS
+      //ue_srs_procedures(ue,proc,eNB_id,abstraction_flag);
+  } // UE_mode==PUSCH
+
+
+#ifdef CBA
+
+  if ((ue->ulsch[eNB_id]->harq_processes[harq_pid]->subframe_cba_scheduling_flag >= 1) &&
+      (ue->ulsch[eNB_id]->harq_processes[harq_pid]->status == CBA_ACTIVE)) {
+    ue->ulsch[eNB_id]->harq_processes[harq_pid]->subframe_scheduling_flag=0; //-=1
+    //  ue->ulsch[eNB_id]->harq_processes[harq_pid]->status= IDLE;
+    first_rb = ue->ulsch[eNB_id]->harq_processes[harq_pid]->first_rb;
+    nb_rb = ue->ulsch[eNB_id]->harq_processes[harq_pid]->nb_rb;
+    //cba_mcs=ue->ulsch[eNB_id]->harq_processes[harq_pid]->mcs;
+    input_buffer_length = ue->ulsch[eNB_id]->harq_processes[harq_pid]->TBS/8;
+    access_mode=CBA_ACCESS;
+
+    LOG_D(PHY,"[UE %d] Frame %d, nr_tti_rx %d: CBA num dci %d\n",
+    Mod_id,frame_tx,nr_tti_tx,
+    ue->ulsch[eNB_id]->num_cba_dci[nr_tti_tx]);
+
+    /*mac_xface->ue_get_sdu(Mod_id,
+        CC_id,
+        frame_tx,
+        proc->subframe_tx,
+        nr_tti_tx%(ue->frame_parms.ttis_per_subframe),
+        eNB_id,
+        ulsch_input_buffer,
+        input_buffer_length,
+        &access_mode);*/
+
+    ue->ulsch[eNB_id]->num_cba_dci[nr_tti_tx]=0;
+
+    if (access_mode > UNKNOWN_ACCESS) {
+
+      if (abstraction_flag==0) {
+        if (ulsch_encoding(ulsch_input_buffer,
+                           ue,
+                           harq_pid,
+                           eNB_id,
+                           proc->nr_tti_rx,
+                           ue->transmission_mode[eNB_id],0,
+                           0)!=0) {  //  Nbundled, to be updated!!!!
+          LOG_E(PHY,"ulsch_coding.c: FATAL ERROR: returning\n");
+          return;
+        }
+      }
+
+#ifdef PHY_ABSTRACTION
+      else {
+        ulsch_encoding_emul(ulsch_input_buffer,ue,eNB_id,proc->nr_tti_rx,harq_pid,0);
+      }
+
+#endif
+    } else {
+      ue->ulsch[eNB_id]->harq_processes[harq_pid]->status= IDLE;
+      //reset_cba_uci(ue->ulsch[eNB_id]->o);
+      LOG_N(PHY,"[UE %d] Frame %d, nr_tti_rx %d: CBA transmission cancelled or postponed\n",
+      Mod_id, frame_tx,nr_tti_tx);
+    }
+  }
+
+#endif // end CBA
+
+
+  if (abstraction_flag == 0) {
+    //ulsch_common_procedures(ue,proc, (ue->generate_ul_signal[eNB_id] == 0));
+  } // mode != PRACH
+
+
+  if ((ue->UE_mode[eNB_id] == PRACH) &&
+      (ue->frame_parms.prach_config_common.prach_Config_enabled==1)) {
+
+    // check if we have PRACH opportunity
+
+    if (is_nr_prach_subframe(&ue->frame_parms,frame_tx,nr_tti_tx)) {
+
+      ue_nr_prach_procedures(ue,proc,eNB_id,abstraction_flag,mode);
+    }
+  } // mode is PRACH
+  else {
+    ue->generate_prach=0;
+  }
+
+  // reset DL ACK/NACK status
+  uint8_t N_bundled = 0;
+  uint8_t current_pid = ue->dlsch[ue->current_thread_id[proc->nr_tti_rx]][eNB_id][0]->current_harq_pid;
+  if (ue->dlsch[ue->current_thread_id[proc->nr_tti_rx]][eNB_id][0] != NULL)
+  {
+/*
+    nr_reset_ack(&ue->frame_parms,
+               ue->dlsch[ue->current_thread_id[proc->nr_tti_rx]][eNB_id][0]->harq_processes[current_pid]->harq_ack,
+               nr_tti_tx,
+               proc->nr_tti_rx,
+               ue->ulsch[eNB_id]->o_ACK,
+               &N_bundled,
+               0);
+    nr_reset_ack(&ue->frame_parms,
+               ue->dlsch[next1_thread_id][eNB_id][0]->harq_processes[current_pid]->harq_ack,
+               nr_tti_tx,
+               proc->nr_tti_rx,
+               ue->ulsch[eNB_id]->o_ACK,
+               &N_bundled,
+               0);
+    nr_reset_ack(&ue->frame_parms,
+               ue->dlsch[next2_thread_id][eNB_id][0]->harq_processes[current_pid]->harq_ack,
+               nr_tti_tx,
+               proc->nr_tti_rx,
+               ue->ulsch[eNB_id]->o_ACK,
+               &N_bundled,
+               0);
+*/
+  }
+
+  if (ue->dlsch_SI[eNB_id] != NULL)
+/*
+    nr_reset_ack(&ue->frame_parms,
+             ue->dlsch_SI[eNB_id]->harq_processes[current_pid]->harq_ack,
+             nr_tti_tx,
+             proc->nr_tti_rx,
+             ue->ulsch[eNB_id]->o_ACK,
+             &N_bundled,
+             0);
+*/
+
+  LOG_D(PHY,"****** end TX-Chain for AbsSubframe %d.%d ******\n", frame_tx, nr_tti_tx);
+
+  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX, VCD_FUNCTION_OUT);
+#if UE_TIMING_TRACE
+  stop_meas(&ue->phy_proc_tx);
+#endif
+}
+
 
+#if 0
 void phy_procedures_UE_TX(PHY_VARS_NR_UE *ue,UE_nr_rxtx_proc_t *proc,uint8_t eNB_id,uint8_t abstraction_flag,runmode_t mode,relaying_type_t r_type) {
 
 
@@ -2663,7 +2987,9 @@ void phy_procedures_UE_TX(PHY_VARS_NR_UE *ue,UE_nr_rxtx_proc_t *proc,uint8_t eNB
   stop_meas(&ue->phy_proc_tx);
 #endif
 }
+#endif //0
 
+#if 0
 void phy_procedures_UE_S_TX(PHY_VARS_NR_UE *ue,uint8_t eNB_id,uint8_t abstraction_flag,relaying_type_t r_type)
 {
   int aa;//i,aa;

targets/RT/USER/nr-ue.c

@@ -751,7 +751,8 @@ printf(">>> mac ended\n");
                 (UE->frame_parms.frame_type == FDD) )
 #endif
             if (UE->mode != loop_through_memory)
-                phy_procedures_UE_TX(UE,proc,0,0,UE->mode,no_relay);
+                phy_procedures_nrUE_TX(UE,proc,0,0,UE->mode,no_relay);
+                //phy_procedures_UE_TX(UE,proc,0,0,UE->mode,no_relay);
 #endif
 #if 0
         if ((subframe_select( &UE->frame_parms, proc->subframe_tx) == SF_S) &&