feat(nr): implement rank-8 PDSCH

executables/nr-gnb.c

@@ -24,6 +24,8 @@
 #include "NR_PHY_INTERFACE/NR_IF_Module.h"
 #include "PHY/INIT/nr_phy_init.h"
 #include "PHY/MODULATION/nr_modulation.h"
+#include "openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h"
+#include "PHY/NR_TRANSPORT/nr_antenna_control.h"
 #include "PHY/NR_TRANSPORT/nr_transport_proto.h"
 #include "PHY/TOOLS/tools_defs.h"
 #include "PHY/defs_RU.h"
@@ -372,6 +374,14 @@ void init_eNB_afterRU(void)
      */
     //init_precoding_weights(RC.gNB[inst]);
     init_gNB_Tpool(inst);
+    
+    // antenna control
+    if (nr_antenna_control_start_test_server(&gNB->antenna_state, 9999))
+        LOG_I(PHY, "[ANTENNA_CTRL] Test control server started on port 9999\n");
+    if (inst < RC.nb_nr_macrlc_inst && RC.nrmac && RC.nrmac[inst]) {
+        RC.nrmac[inst]->antenna_state = &gNB->antenna_state;
+        LOG_I(PHY, "[ANTENNA_STATE] Connected MAC scheduler to PHY antenna state for dynamic layer adaptation\n");
+    }
   }
 }
 

executables/nr-ue-ru.c

@@ -302,8 +302,8 @@ void nrue_init_openair0(void)
 
     cfg->ru_id = ru_id;
     cfg->num_rb_dl = frame_parms->N_RB_DL;
-    cfg->tx_num_channels = min(4, frame_parms->nb_antennas_tx);
-    cfg->rx_num_channels = min(4, frame_parms->nb_antennas_rx);
+    cfg->tx_num_channels = min(MAX_ANT, frame_parms->nb_antennas_tx);
+    cfg->rx_num_channels = min(MAX_ANT, frame_parms->nb_antennas_rx);
 
     LOG_I(PHY,
           "HW: Configuring ru_id %d, sample_rate %f, tx/rx num_channels %d/%d, duplex_mode %s\n",

executables/nr-ue.c

@@ -763,8 +763,9 @@ void *UE_thread(void *arg)
 
   if (get_softmodem_params()->sync_ref && UE->sl_mode == 2) {
     UE->is_synchronized = 1;
-  } else {
-    //warm up the RF board
+  } else if (!IS_SOFTMODEM_RFSIM) {
+    // Warm up physical RF hardware. RFsim has no RF board to settle, and
+    // discarding 100 simulated frames only delays initial synchronization.
     openair0_timestamp_t tmp;
     for (int i = 0; i < 50; i++)
       readFrame(UE, &tmp, duration_rx_to_tx, true);