5.2.4 Beamforming
25.2213GPPPhysical channels and mapping of transport channels onto physical channels (TDD)Release 17TS
When DL beamforming is used, at least that user to which beamforming is applied and which has a dedicated channel shall get one individual midamble according to subclause 5.2.3, even in DL. DL beamforming is not applied to timeslots containing burst type 4.