diff --git a/openair1/PHY/INIT/nr_init_ue.c b/openair1/PHY/INIT/nr_init_ue.c
index 930fa76908..c687e20920 100644
--- a/openair1/PHY/INIT/nr_init_ue.c
+++ b/openair1/PHY/INIT/nr_init_ue.c
@@ -378,7 +378,6 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
       ue->pdcch_vars[th_id][gNB_id]->wbar                = (int16_t *)malloc16_clear( 2*4*100*12*sizeof(uint16_t) );
       ue->pdcch_vars[th_id][gNB_id]->e_rx                = (int16_t *)malloc16_clear( 4*2*100*12 );
       ue->pdcch_vars[th_id][gNB_id]->rxdataF_comp        = (int32_t **)malloc16_clear( 4*fp->nb_antennas_rx*sizeof(int32_t *) );
-      ue->pdcch_vars[th_id][gNB_id]->dl_ch_rho_ext       = (int32_t **)malloc16_clear( 4*fp->nb_antennas_rx*sizeof(int32_t *) );
       ue->pdcch_vars[th_id][gNB_id]->rho                 = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
       ue->pdcch_vars[th_id][gNB_id]->rxdataF_ext         = (int32_t **)malloc16_clear( 4*fp->nb_antennas_rx*sizeof(int32_t *) );
       ue->pdcch_vars[th_id][gNB_id]->dl_ch_estimates_ext = (int32_t **)malloc16_clear( 4*fp->nb_antennas_rx*sizeof(int32_t *) );
@@ -396,7 +395,6 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
           //  size_t num = 7*2*fp->N_RB_DL*12;
           size_t num = 4*273*12;  // 4 symbols, 100 PRBs, 12 REs per PRB
           ue->pdcch_vars[th_id][gNB_id]->rxdataF_comp[idx]        = (int32_t *)malloc16_clear(sizeof(int32_t) * num);
-          ue->pdcch_vars[th_id][gNB_id]->dl_ch_rho_ext[idx]       = (int32_t *)malloc16_clear(sizeof(int32_t) * num);
           ue->pdcch_vars[th_id][gNB_id]->rxdataF_ext[idx]         = (int32_t *)malloc16_clear(sizeof(int32_t) * num);
           ue->pdcch_vars[th_id][gNB_id]->dl_ch_estimates_ext[idx] = (int32_t *)malloc16_clear(sizeof(int32_t) * num);
         }
@@ -517,37 +515,11 @@ void term_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
 
     // PDSCH
     for (int th_id = 0; th_id < RX_NB_TH_MAX; th_id++) {
-      for (int k = 0; k < 8; k++) { //harq_pid
-        for (int l = 0; l < 8; l++) { //round
-          for (int i = 0; i < fp->nb_antennas_rx; i++) {
-            for (int j = 0; j < 4; j++) { //frame_parms->nb_antennas_tx; j++)
-              const int idx = j * fp->nb_antennas_rx + i;
-              free_and_zero(ue->pdsch_vars[th_id][gNB_id]->dl_ch_rho_ext[k][l][idx]);
-              free_and_zero(ue->pdsch_vars[th_id][gNB_id]->rxdataF_comp1[k][l][idx]);
-              free_and_zero(ue->pdsch_vars[th_id][gNB_id]->dl_ch_mag1[k][l][idx]);
-              free_and_zero(ue->pdsch_vars[th_id][gNB_id]->dl_ch_magb1[k][l][idx]);
-            }
-          }
 
-          free_and_zero(ue->pdsch_vars[th_id][gNB_id]->rxdataF_comp1[k][l]);
-          free_and_zero(ue->pdsch_vars[th_id][gNB_id]->dl_ch_rho_ext[k][l]);
-          free_and_zero(ue->pdsch_vars[th_id][gNB_id]->dl_ch_mag1[k][l]);
-          free_and_zero(ue->pdsch_vars[th_id][gNB_id]->dl_ch_magb1[k][l]);
-        }
-      }
-
-      for (int i = 0; i < fp->nb_antennas_rx; i++) {
-        for (int j = 0; j < 4; j++) {
-          const int idx = (j*fp->nb_antennas_rx)+i;
-          free_and_zero(ue->pdsch_vars[th_id][gNB_id]->dl_ch_rho2_ext[idx]);
-        }
-      }
       free_and_zero(ue->pdsch_vars[th_id][gNB_id]->llr_shifts);
       free_and_zero(ue->pdsch_vars[th_id][gNB_id]->llr[1]);
       free_and_zero(ue->pdsch_vars[th_id][gNB_id]->layer_llr[1]);
       free_and_zero(ue->pdsch_vars[th_id][gNB_id]->llr128_2ndstream);
-      free_and_zero(ue->pdsch_vars[th_id][gNB_id]->dl_ch_rho2_ext);
-
       phy_term_nr_ue__PDSCH(ue->pdsch_vars[th_id][gNB_id], fp);
       free_and_zero(ue->pdsch_vars[th_id][gNB_id]);
     }
@@ -559,7 +531,6 @@ void term_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
           free_and_zero(ue->pdcch_vars[th_id][gNB_id]->dl_ch_estimates[idx]);
           free_and_zero(ue->pdcch_vars[th_id][gNB_id]->dl_ch_estimates_time[idx]);
           free_and_zero(ue->pdcch_vars[th_id][gNB_id]->rxdataF_comp[idx]);
-          free_and_zero(ue->pdcch_vars[th_id][gNB_id]->dl_ch_rho_ext[idx]);
           free_and_zero(ue->pdcch_vars[th_id][gNB_id]->rxdataF_ext[idx]);
           free_and_zero(ue->pdcch_vars[th_id][gNB_id]->dl_ch_estimates_ext[idx]);
         }
@@ -570,7 +541,6 @@ void term_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
       free_and_zero(ue->pdcch_vars[th_id][gNB_id]->wbar);
       free_and_zero(ue->pdcch_vars[th_id][gNB_id]->e_rx);
       free_and_zero(ue->pdcch_vars[th_id][gNB_id]->rxdataF_comp);
-      free_and_zero(ue->pdcch_vars[th_id][gNB_id]->dl_ch_rho_ext);
       free_and_zero(ue->pdcch_vars[th_id][gNB_id]->rho);
       free_and_zero(ue->pdcch_vars[th_id][gNB_id]->rxdataF_ext);
       free_and_zero(ue->pdcch_vars[th_id][gNB_id]->dl_ch_estimates_ext);
diff --git a/openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h b/openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h
index 308c536efd..ddbb2be5cf 100644
--- a/openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h
+++ b/openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h
@@ -830,22 +830,6 @@ void nr_dlsch_deinterleaving(uint8_t symbol,
                              uint16_t *llr_deint,
                              uint16_t nb_rb_pdsch);
 
-void dlsch_dual_stream_correlation(NR_DL_FRAME_PARMS *frame_parms,
-                                   unsigned char symbol,
-                                   unsigned short nb_rb,
-                                   int **dl_ch_estimates_ext,
-                                   int **dl_ch_estimates_ext_i,
-                                   int **dl_ch_rho_ext,
-                                   unsigned char output_shift);
-
-void dlsch_dual_stream_correlationTM34(NR_DL_FRAME_PARMS *frame_parms,
-                                   unsigned char symbol,
-                                   unsigned short nb_rb,
-                                   int **dl_ch_estimates_ext,
-                                   int **dl_ch_estimates_ext_i,
-                                   int **dl_ch_rho_ext,
-                                   unsigned char output_shift0,
-                                   unsigned char output_shift1);
 //This function is used to compute multiplications in Hhermitian * H matrix
 void conjch0_mult_ch1(int *ch0,
                       int *ch1,
diff --git a/openair1/PHY/defs_nr_UE.h b/openair1/PHY/defs_nr_UE.h
index 9d5c979cd7..59ce97b557 100644
--- a/openair1/PHY/defs_nr_UE.h
+++ b/openair1/PHY/defs_nr_UE.h
@@ -276,12 +276,6 @@ typedef struct {
   /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
   /// - second index: ? [0..168*N_RB_DL[
   int32_t **rxdataF_comp0;
-  /// \brief Received frequency-domain signal after extraction and channel compensation for the second stream. For the SIC receiver we need to store the history of this for each harq process and round
-  /// - first index: ? [0..7] (hard coded) accessed via \c harq_pid
-  /// - second index: ? [0..7] (hard coded) accessed via \c round
-  /// - third index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
-  /// - fourth index: ? [0..168*N_RB_DL[
-  int32_t **rxdataF_comp1[8][8];
   /// \brief Hold the channel estimates in frequency domain.
   /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
   /// - second index: samples? [0..symbols_per_tti*(ofdm_symbol_size+LTE_CE_FILTER_LENGTH)[
@@ -294,12 +288,6 @@ typedef struct {
   /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
   /// - second index: ? [0..168*N_RB_DL[
   int32_t **dl_ch_ptrs_estimates_ext;
-  /// \brief Downlink cross-correlation of MIMO channel estimates (unquantized PMI) extracted in PRBS. For the SIC receiver we need to store the history of this for each harq process and round
-  /// - first index: ? [0..7] (hard coded) accessed via \c harq_pid
-  /// - second index: ? [0..7] (hard coded) accessed via \c round
-  /// - third index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
-  /// - fourth index: ? [0..168*N_RB_DL[
-  int32_t **dl_ch_rho_ext[8][8];
   /// \brief Downlink beamforming channel estimates in frequency domain.
   /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
   /// - second index: samples? [0..symbols_per_tti*(ofdm_symbol_size+LTE_CE_FILTER_LENGTH)[
@@ -308,10 +296,6 @@ typedef struct {
   /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
   /// - second index: ? [0..168*N_RB_DL[
   int32_t **dl_bf_ch_estimates_ext;
-  /// \brief Downlink cross-correlation of MIMO channel estimates (unquantized PMI) extracted in PRBS.
-  /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
-  /// - second index: ? [0..168*N_RB_DL[
-  int32_t **dl_ch_rho2_ext;
   /// \brief Downlink PMIs extracted in PRBS and grouped in subbands.
   /// - first index: ressource block [0..N_RB_DL[
   uint8_t *pmi_ext;
@@ -319,18 +303,10 @@ typedef struct {
   /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
   /// - second index: ? [0..168*N_RB_DL[
   int32_t **dl_ch_mag0;
-  /// \brief Magnitude of Downlink Channel second layer (16QAM level/First 64QAM level).
-  /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
-  /// - second index: ? [0..168*N_RB_DL[
-  int32_t **dl_ch_mag1[8][8];
   /// \brief Magnitude of Downlink Channel, first layer (2nd 64QAM level).
   /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
   /// - second index: ? [0..168*N_RB_DL[
   int32_t **dl_ch_magb0;
-  /// \brief Magnitude of Downlink Channel second layer (2nd 64QAM level).
-  /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
-  /// - second index: ? [0..168*N_RB_DL[
-  int32_t **dl_ch_magb1[8][8];
   /// \brief Magnitude of Downlink Channel, first layer (256QAM level).
   int32_t **dl_ch_magr0;
   /// \brief Cross-correlation Matrix of the gNB Tx channel signals.
@@ -600,10 +576,6 @@ typedef struct {
   /// - second index: ? [0..168*N_RB_DL[
   int32_t **dl_ch_estimates_ext;
   /// \brief Pointers to channel cross-correlation vectors for multi-gNB detection.
-  /// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
-  /// - second index: ? [0..168*N_RB_DL[
-  int32_t **dl_ch_rho_ext;
-  /// \brief Pointers to channel cross-correlation vectors for multi-gNB detection.
   /// - first index: rx antenna [0..nb_antennas_rx[
   /// - second index: ? [0..]
   int32_t **rho;