4T4R more PHICH and less PDCCH in slot zero of subframe as compared to 2T2R

Hello Experts,
Why does 4T4R (four port antenna) take more PHICH and less PDCCH in slot zero of subframe as compared to 2T2R (2 port antenna)?
Any logic behind this?
Does four port antenna requires 4T4R antenna port and transmit receive antenna different or same concepts?
Please help to clarify.
LTE system.