diff --git a/openair1/SCHED_NR/nr_ru_procedures.c b/openair1/SCHED_NR/nr_ru_procedures.c
index 14705786ed..23f8b2ce80 100644
--- a/openair1/SCHED_NR/nr_ru_procedures.c
+++ b/openair1/SCHED_NR/nr_ru_procedures.c
@@ -200,6 +200,9 @@ void nr_feptx_prec(RU_t *ru, int frame_tx, int slot_tx)
   // O-RAN compliant antenna muting (MPLANE-TRX-CONTROL)
   nr_antenna_state_t *ant_state = &gNB->antenna_state;
   
+  // Check if ALL TX antennas are muted (complete transmission stop)
+  int active_tx_count = nr_get_active_tx_antenna_count(ant_state);
+  
   // If there is no digital beamforming we just need to copy the data to RU
   if (ru->config.dbt_config.num_dig_beams == 0 || ru->gNB_list[0]->common_vars.analog_bf) {
     for (int b = 0; b < ru->num_beams_period; b++) {
@@ -213,10 +216,23 @@ void nr_feptx_prec(RU_t *ru, int frame_tx, int slot_tx)
                  fp->samples_per_slot_wCP * sizeof(int32_t));
           LOG_D(PHY, "[ANTENNA_MUTE] TX antenna %d muted in slot %d\n", i, slot_tx);
         } else {
-          // Normal copy for active antennas
-          memcpy((void*)ru->common.txdataF_BF[tx_idx],
-                 (void*)&gNB->common_vars.txdataF[b][i][txdataF_offset],
-                 fp->samples_per_slot_wCP * sizeof(int32_t));
+          // Active antenna: copy data
+          // If antenna 0 is muted but this antenna is active, we need to copy
+          // SSB/common data from antenna 0's source to ensure SSB is transmitted
+          // on at least one active antenna (SSB is generated on port 0)
+          if (i > 0 && !nr_is_tx_antenna_active(ant_state, 0) && active_tx_count > 0) {
+            // Antenna 0 is muted, copy antenna 0's data to this active antenna
+            // This ensures SSB is transmitted on at least one antenna
+            memcpy((void*)ru->common.txdataF_BF[tx_idx],
+                   (void*)&gNB->common_vars.txdataF[b][0][txdataF_offset],
+                   fp->samples_per_slot_wCP * sizeof(int32_t));
+            LOG_D(PHY, "[ANTENNA_MUTE] Copying SSB from ant0 to active ant%d in slot %d\n", i, slot_tx);
+          } else {
+            // Normal copy for active antennas
+            memcpy((void*)ru->common.txdataF_BF[tx_idx],
+                   (void*)&gNB->common_vars.txdataF[b][i][txdataF_offset],
+                   fp->samples_per_slot_wCP * sizeof(int32_t));
+          }
         }
       }
     }
@@ -253,6 +269,7 @@ void nr_feptx(void *arg)
   PHY_VARS_gNB *gNB = ru->gNB_list[0];
   nr_antenna_state_t *ant_state = &gNB->antenna_state;
   bool antenna_muted = !nr_is_tx_antenna_active(ant_state, aa);
+  int active_tx_count = nr_get_active_tx_antenna_count(ant_state);
 
   if (antenna_muted) {
     // Zero the output buffer for muted antenna - transmission blanking
@@ -269,11 +286,20 @@ void nr_feptx(void *arg)
     }
 
     // If there is no digital beamforming we just need to copy the data to RU
-    if (ru->config.dbt_config.num_dig_beams == 0 || ru->gNB_list[0]->common_vars.analog_bf)
-       memcpy((void*)&ru->common.txdataF_BF[tx_idx][txdataF_BF_offset],
-              (void*)&ru->gNB_list[0]->common_vars.txdataF[bb][aa][txdataF_offset],
-              numSamples * sizeof(int32_t));
-    else {
+    if (ru->config.dbt_config.num_dig_beams == 0 || ru->gNB_list[0]->common_vars.analog_bf) {
+       // If antenna 0 is muted but this antenna is active, copy SSB from antenna 0
+       // SSB is generated only on antenna port 0
+       if (aa > 0 && !nr_is_tx_antenna_active(ant_state, 0) && active_tx_count > 0) {
+         memcpy((void*)&ru->common.txdataF_BF[tx_idx][txdataF_BF_offset],
+                (void*)&ru->gNB_list[0]->common_vars.txdataF[bb][0][txdataF_offset],
+                numSamples * sizeof(int32_t));
+         LOG_D(PHY, "[ANTENNA_MUTE] Copying SSB from ant0 to active ant%d, slot %d\n", aa, slot);
+       } else {
+         memcpy((void*)&ru->common.txdataF_BF[tx_idx][txdataF_BF_offset],
+                (void*)&ru->gNB_list[0]->common_vars.txdataF[bb][aa][txdataF_offset],
+                numSamples * sizeof(int32_t));
+       }
+    } else {
       AssertFatal(false, "This needs to be fixed by using appropriate beams from config\n");
     }
   }