diff --git a/openair2/ENB_APP/enb_config.h b/openair2/ENB_APP/enb_config.h
index 9c271ca4f4ae5c087da9d9ffceea8c0e2e5b72e0..422ef67cd32971638f68e5f5f605e48e59c2ce86 100755
--- a/openair2/ENB_APP/enb_config.h
+++ b/openair2/ENB_APP/enb_config.h
@@ -86,7 +86,14 @@ typedef struct rrh_gw_config_s {
   char     *remote_address;
   uint16_t  local_port;
   uint16_t  remote_port;
-
+  int tx_scheduling_advance;
+  int tx_sample_advance;
+  int iq_txshift;
+  unsigned  exmimo:1;
+  unsigned  usrp_b200:1;
+  unsigned  usrp_x300:1;
+  unsigned  bladerf:1; 
+  unsigned  lmssdr:1;  
 } rrh_gw_config_t;
 
 typedef struct Enb_properties_s {