Reply To: Tx Mode 4 nt.tuwien.ac.at > Reply To: Tx Mode 4 Search for: 30. May 2016 at 22:34 #5401 NaserParticipant Dear Martin, After checking UE traces, it turns out that the additional rank is for 0 RB assignment (in some TTI’s), i.e., RI =0 (no Tx). Thanks 🙂 Best Regards Naser