What you mean is either achieved with conventional high-gain antennas (Dishes, mostly) or with beamforming by either a passive, or in this case more likely, act

What you mean is either achieved with conventional high-gain antennas (Dishes, mostly) or with beamforming by either a passive, or in this case more likely, active phased array. TBH, I dont know of any commercial handsets doing so (albeit I am not that deep into the consumer market). On Base Stations, on the other hand, yes they are using this technology to improve reception and to limit inter-cell interference.