Add rb extract to support multiple tx layers feature for MIMO mode

openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c

@@ -672,7 +672,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
   int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[proc->thread_id].rxdataF;
 
   if (ue->high_speed_flag == 0)
-    ch_offset     = ue->frame_parms.ofdm_symbol_size ;
+    ch_offset     = ue->frame_parms.ofdm_symbol_size;
   else
     ch_offset     = ue->frame_parms.ofdm_symbol_size*symbol;
 
@@ -694,7 +694,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
 
   if (config_type == pdsch_dmrs_type1){
     nushift = (p>>1)&1;
-    ue->frame_parms.nushift = nushift;
+    if (p<4) ue->frame_parms.nushift = nushift;
     switch (delta) {
 
       case 0://port 0,1
@@ -734,7 +734,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
     }
   } else {//pdsch_dmrs_type2
     nushift = delta;
-    ue->frame_parms.nushift = nushift;
+    if (p<6) ue->frame_parms.nushift = nushift;
     switch (delta) {
       case 0://port 0,1
         fl = filt8_l2;//left interpolation Filter should be fml

openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h

@@ -686,11 +686,8 @@ void dlsch_detection_mrc_TM34(NR_DL_FRAME_PARMS *frame_parms,
     int32_t **dl_ch_estimates,
     int32_t **rxdataF_ext,
     int32_t **dl_ch_estimates_ext,
-    uint16_t pmi,
-    uint8_t *pmi_ext,
     uint32_t *rb_alloc,
     uint8_t symbol,
-    uint8_t nr_slot_rx,
     NR_DL_FRAME_PARMS *frame_parms)
     \brief This function extracts the received resource blocks, both channel estimates and data symbols,
     for the current allocation and for single antenna eNB transmission.
@@ -698,11 +695,8 @@ void dlsch_detection_mrc_TM34(NR_DL_FRAME_PARMS *frame_parms,
     @param dl_ch_estimates Channel estimates of current slot
     @param rxdataF_ext FFT output for RBs in this allocation
     @param dl_ch_estimates_ext Channel estimates for RBs in this allocation
-    @param pmi subband Precoding matrix indicator
-    @param pmi_ext Extracted PMI for chosen RBs
     @param rb_alloc RB allocation vector
     @param symbol Symbol to extract
-    @param nr_slot_rx Slot number
     @param high_speed_flag
     @param frame_parms Pointer to frame descriptor
 */
@@ -710,55 +704,52 @@ unsigned short nr_dlsch_extract_rbs_single(int **rxdataF,
                                         int **dl_ch_estimates,
                                         int **rxdataF_ext,
                                         int **dl_ch_estimates_ext,
-                                        unsigned short pmi,
-                                        unsigned char *pmi_ext,
                                         unsigned char symbol,
                                         uint8_t pilots,
                                         uint8_t config_type,
                                         unsigned short start_rb,
-                                        unsigned short nb_pdsch_rb,
-                                        unsigned char nr_slot_rx,
+                                        unsigned short nb_rb_pdsch,
                                         uint32_t high_speed_flag,
                                         NR_DL_FRAME_PARMS *frame_parms,
                                         uint16_t dlDmrsSymbPos);
 
-/** \fn dlsch_extract_rbs_dual(int32_t **rxdataF,
+/** \fn dlsch_extract_rbs_multiple(int32_t **rxdataF,
     int32_t **dl_ch_estimates,
     int32_t **rxdataF_ext,
     int32_t **dl_ch_estimates_ext,
-    uint16_t pmi,
-    uint8_t *pmi_ext,
-    uint32_t *rb_alloc,
-    uint8_t symbol,
-    NR_DL_FRAME_PARMS *frame_parms)
+    unsigned char symbol
+    uint8_t pilots,
+    uint8_t config_type,
+    unsigned short start_rb,
+    unsigned short nb_rb_pdsch,
+    uint32_t high_speed_flag,
+    uint8_t Nl,
+    NR_DL_FRAME_PARMS *frame_parms,
+    uint16_t dlDmrsSymbPos)
     \brief This function extracts the received resource blocks, both channel estimates and data symbols,
-    for the current allocation and for dual antenna eNB transmission.
+    for the current allocation and for multiple layer antenna gNB transmission.
     @param rxdataF Raw FFT output of received signal
     @param dl_ch_estimates Channel estimates of current slot
     @param rxdataF_ext FFT output for RBs in this allocation
     @param dl_ch_estimates_ext Channel estimates for RBs in this allocation
-    @param pmi subband Precoding matrix indicator
-    @param pmi_ext Extracted PMI for chosen RBs
-    @param rb_alloc RB allocation vector
+    @param Nl nb of antenna layers
     @param symbol Symbol to extract
-    @param nr_slot_rx Slot index
     @param high_speed_flag
     @param frame_parms Pointer to frame descriptor
 */
-unsigned short nr_dlsch_extract_rbs_dual(int **rxdataF,
+unsigned short nr_dlsch_extract_rbs_multiple(int **rxdataF,
                                         int **dl_ch_estimates,
                                         int **rxdataF_ext,
                                         int **dl_ch_estimates_ext,
-                                      unsigned short pmi,
-                                      unsigned char *pmi_ext,
                                         unsigned char symbol,
                                         uint8_t pilots,
+                                        uint8_t config_type,
                                         unsigned short start_rb,
                                         unsigned short nb_rb_pdsch,
-                                      unsigned char nr_slot_rx,
                                         uint32_t high_speed_flag,
+                                        uint8_t Nl,
                                         NR_DL_FRAME_PARMS *frame_parms,
-                                      MIMO_mode_t mimo_mode);
+                                        uint16_t dlDmrsSymbPos);
 
 /** \fn dlsch_extract_rbs_TM7(int32_t **rxdataF,
     int32_t **dl_bf_ch_estimates,

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

@@ -741,7 +741,7 @@ int nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, int eNB_
 
     for (m = s0; m < (s0 +s1); m++) {
       if (((1<<m)&dlsch0->harq_processes[harq_pid]->dlDmrsSymbPos) > 0) {
-        for (uint8_t aatx=0; aatx<1; aatx++) {//for MIMO Config: it shall loop over no_layers
+        for (uint8_t aatx=0; aatx<dlsch0->harq_processes[harq_pid]->Nl; aatx++) {//for MIMO Config: it shall loop over no_layers
           nr_pdsch_channel_estimation(ue,
                                       proc,
                                       0 /*eNB_id*/,

targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.106PRB.usrpn300.conf

@@ -23,7 +23,7 @@ gNBs =
     ////////// Physical parameters:
 
     ssb_SubcarrierOffset                                      = 0;
-    pdsch_AntennaPorts                                        = 2;
+    pdsch_AntennaPorts                                        = 1;
 
     servingCellConfigCommon = (
     {
@@ -240,7 +240,7 @@ L1s = (
 RUs = (
     {		  
        local_rf       = "yes"
-         nb_tx          = 2
+         nb_tx          = 1
          nb_rx          = 1
          att_tx         = 0
          att_rx         = 0;