remove nr_csi_info_t from gNB (unused)

openair1/PHY/INIT/nr_init.c

@@ -150,10 +150,6 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB)
   nr_generate_modulation_table();
   nr_init_pbch_interleaver(gNB->nr_pbch_interleaver);
 
-  // CSI RS init
-  // ceil((NB_RB*8(max allocation per RB)*2(QPSK))/32)
-  gNB->nr_csi_info = (nr_csi_info_t *)malloc16_clear(sizeof(nr_csi_info_t));
-
   generate_ul_reference_signal_sequences(SHRT_MAX);
 
   /* Generate low PAPR type 1 sequences for PUSCH DMRS, these are used if transform precoding is enabled.  */
@@ -241,8 +237,6 @@ void phy_free_nr_gNB(PHY_VARS_gNB *gNB)
   free_and_zero(meas->n0_subband_power);
   free_and_zero(meas->n0_subband_power_dB);
 
-  free_and_zero(gNB->nr_csi_info);
-
   for (int id = 0; id < gNB->max_nb_srs; id++) {
     for(int i=0; i<MAX_NUM_NR_SRS_AP; i++) {
       free_and_zero(gNB->nr_srs_info[id]->srs_generated_signal[i]);

openair1/PHY/NR_REFSIG/nr_refsig.h

@@ -41,7 +41,6 @@ int nr_pusch_dmrs_rx(PHY_VARS_gNB *gNB,
 void nr_generate_csi_rs(const NR_DL_FRAME_PARMS *frame_parms,
                         int32_t **dataF,
                         const int16_t amp,
-                        nr_csi_info_t *nr_csi_info,
                         const nfapi_nr_dl_tti_csi_rs_pdu_rel15_t *csi_params,
                         const int slot,
                         const csi_mapping_parms_t *phy_csi_parms);

openair1/PHY/NR_TRANSPORT/nr_csi_rs.c

@@ -27,7 +27,6 @@
 void nr_generate_csi_rs(const NR_DL_FRAME_PARMS *frame_parms,
                         int32_t **dataF,
                         const int16_t amp,
-                        nr_csi_info_t *nr_csi_info,
                         const nfapi_nr_dl_tti_csi_rs_pdu_rel15_t *csi_params,
                         const int slot,
                         const csi_mapping_parms_t *phy_csi_parms)
@@ -54,7 +53,6 @@ void nr_generate_csi_rs(const NR_DL_FRAME_PARMS *frame_parms,
   int csi_rs_length =  frame_parms->N_RB_DL << 4;
   int16_t mod_csi[frame_parms->symbols_per_slot][csi_rs_length>>1] __attribute__((aligned(16)));
   uint32_t beta = amp;
-  nr_csi_info->csi_rs_generated_signal_bits = log2_approx(amp);
 
   // setting the frequency density from its index
   double rho = 0;

openair1/PHY/NR_UE_TRANSPORT/csi_rx.c

@@ -886,14 +886,16 @@ void nr_ue_csi_rs_procedures(PHY_VARS_NR_UE *ue,
                                                             csirs_config_pdu->freq_domain,
                                                             csirs_config_pdu->symb_l0,
                                                             csirs_config_pdu->symb_l1);
+  nr_csi_info_t *csi_info = ue->nr_csi_info;
   nr_generate_csi_rs(frame_parms,
-                     ue->nr_csi_info->csi_rs_generated_signal,
+                     csi_info->csi_rs_generated_signal,
                      AMP,
-                     ue->nr_csi_info,
                      &csi_params,
                      proc->nr_slot_rx,
                      &mapping_parms);
 
+  csi_info->csi_rs_generated_signal_bits = log2_approx(AMP);
+
   int32_t csi_rs_ls_estimated_channel[frame_parms->nb_antennas_rx][mapping_parms.ports][frame_parms->ofdm_symbol_size];
   int32_t csi_rs_estimated_channel_freq[frame_parms->nb_antennas_rx][mapping_parms.ports][frame_parms->ofdm_symbol_size + FILTER_MARGIN];
 
@@ -906,7 +908,7 @@ void nr_ue_csi_rs_procedures(PHY_VARS_NR_UE *ue,
   nr_get_csi_rs_signal(ue,
                        proc,
                        csirs_config_pdu,
-                       ue->nr_csi_info,
+                       csi_info,
                        &mapping_parms,
                        CDM_group_size,
                        csi_rs_received_signal,
@@ -920,8 +922,8 @@ void nr_ue_csi_rs_procedures(PHY_VARS_NR_UE *ue,
     nr_csi_rs_channel_estimation(frame_parms,
                                  proc,
                                  csirs_config_pdu,
-                                 ue->nr_csi_info,
+                                 csi_info,
-                                 (const int32_t **) ue->nr_csi_info->csi_rs_generated_signal,
+                                 (const int32_t **) csi_info->csi_rs_generated_signal,
                                  csi_rs_received_signal,
                                  &mapping_parms,
                                  CDM_group_size,
@@ -936,7 +938,7 @@ void nr_ue_csi_rs_procedures(PHY_VARS_NR_UE *ue,
   if (csirs_config_pdu->measurement_bitmap & 2) {
     nr_csi_rs_ri_estimation(ue,
                             csirs_config_pdu,
-                            ue->nr_csi_info,
+                            csi_info,
                             mapping_parms.ports,
                             mem_offset,
                             csi_rs_estimated_channel_freq,
@@ -948,11 +950,11 @@ void nr_ue_csi_rs_procedures(PHY_VARS_NR_UE *ue,
   if (csirs_config_pdu->measurement_bitmap & 8) {
     nr_csi_rs_pmi_estimation(ue,
                              csirs_config_pdu,
-                             ue->nr_csi_info,
+                             csi_info,
                              mapping_parms.ports,
                              mem_offset,
                              csi_rs_estimated_channel_freq,
-                             ue->nr_csi_info->csi_im_meas_computed ? ue->nr_csi_info->interference_plus_noise_power : noise_power,
+                             csi_info->csi_im_meas_computed ? csi_info->interference_plus_noise_power : noise_power,
                              rank_indicator,
                              log2_re,
                              i1,

openair1/PHY/defs_gNB.h

@@ -464,9 +464,6 @@ typedef struct PHY_VARS_gNB_s {
   /// SRS variables
   nr_srs_info_t **nr_srs_info;
 
-  /// CSI variables
-  nr_csi_info_t *nr_csi_info;
-
   // reference amplitude for TX
   int16_t TX_AMP;
 

openair1/PHY/defs_nr_UE.h

@@ -310,6 +310,13 @@ typedef struct {
   fapi_nr_dl_config_csirs_pdu_rel15_t csirs_config_pdu;
 } NR_UE_CSI_RS;
 
+typedef struct {
+  uint8_t csi_rs_generated_signal_bits;
+  int32_t **csi_rs_generated_signal;
+  bool csi_im_meas_computed;
+  uint32_t interference_plus_noise_power;
+} nr_csi_info_t;
+
 typedef struct {
   bool active;
   fapi_nr_ul_config_srs_pdu srs_config_pdu;

openair1/PHY/defs_nr_common.h

@@ -119,13 +119,6 @@ typedef struct {
   nfapi_nr_srs_pdu_t srs_pdu;
 } nr_srs_info_t;
 
-typedef struct {
-  uint8_t csi_rs_generated_signal_bits;
-  int32_t **csi_rs_generated_signal;
-  bool csi_im_meas_computed;
-  uint32_t interference_plus_noise_power;
-} nr_csi_info_t;
-
 typedef struct NR_DL_FRAME_PARMS NR_DL_FRAME_PARMS;
 
 typedef uint32_t (*get_samples_per_slot_t)(int slot, const NR_DL_FRAME_PARMS *fp);

openair1/SCHED_NR/phy_procedures_nr_gNB.c

@@ -227,7 +227,6 @@ void phy_procedures_gNB_TX(processingData_L1tx_t *msgTx,
       nr_generate_csi_rs(&gNB->frame_parms,
                          (int32_t **)gNB->common_vars.txdataF,
                          gNB->TX_AMP,
-                         gNB->nr_csi_info,
                          csi_params,
                          slot,
                          &mapping_parms);