Thank you very much for your answer Fjolla.
What you say sounds reasonable. However, when having the additional losses set to ‘deep indoor’ (-23dB) I get around 13Mbps average UE throughout. Even though interference is kind of neglected, it seems a little bit high taking into account I have high penetration loss, isn’t it?.
My scenario is a 2×2 MIMO closed-loop spatial multiplexing (tx mode 4), TU channel model, 20MHz BW in a hexagonal grid.
In the end, what I’m trying to simulate is a transmission between an eNB and a UE which is inside a building with very thick walls and a few interference eNBs nearby.