diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.217PRB.usrpn300.conf b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.217PRB.usrpn300.conf
index 0058f53e2c..5587d608e4 100644
--- a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.217PRB.usrpn300.conf
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.217PRB.usrpn300.conf
@@ -170,10 +170,10 @@ gNBs =
       # dl_UL_TransmissionPeriodicity
       # 0=ms0p5, 1=ms0p625, 2=ms1, 3=ms1p25, 4=ms2, 5=ms2p5, 6=ms5, 7=ms10
       dl_UL_TransmissionPeriodicity                                 = 6;
-      nrofDownlinkSlots                                             = 7;
-      nrofDownlinkSymbols                                           = 6;
-      nrofUplinkSlots                                               = 2;
-      nrofUplinkSymbols                                             = 4;
+      nrofDownlinkSlots                                             = 2;
+      nrofDownlinkSymbols                                           = 1;
+      nrofUplinkSlots                                               = 7;
+      nrofUplinkSymbols                                             = 7;
 
   ssPBCH_BlockPower                                             = 10;
   }