What parameter can be changed to improve throughput for 2 by 2 MIMO

RAN
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1

Any parameter we can change for low thrpt sites for 2 X 2 MIMO?

2

Absolute maximum FDD physical layer throughputs if all Resource Elements were allocated to the PDSCH

Source:

http://www.lte-bullets.com/LTE%20in%20Bullets%20-%20Downlink%20FDD%20Bit%20Rates.pdf

In this pdf there are bit rates and info for different bandwidth, mimo etc