2*2 and 4*2 MIMO for throughput test

Question

For Downlink - 2*2 and 4*2 MIMO configurations, Which one gives better throughput and why ?.
Both have 2 receiving antennas.

Answer 1

Hi,

obviously 4*2 gives better result, because it has 4 tx layers. ENB can create multiple propagation path for Data Tx and it can find out the receiver easily. Receiver can easily recognize any of the two RI using 4 Tx so it increase interms of reducing the poor signal quality.