Implementing a 2x2 MIMO using USRP 2901

[Namq2948]

Hello, I have two NI USRP-2901.

I want to implement simple 2x2 MIMO.

And, I found these phrases on the website : 2 USRP-2901 software defined transceivers (2X2 MIMO, 70 MHz to 6 GHz)

But I can not find any related data or documents or example code.

I have already looked at the white paper using USRP-292x. (http://www.ni.com/white-paper/13878/en/)

I really need to know that it's impossible with 2901?

If possible, how can I implement 2x2 MIMO with 2901?

[mcan06]

I tried this example by using USRP-2901 at LabVIEW Communication Design Suite but it doesn't work. When u examine this document, it will help u.

https://www.ettus.com/content/files/kb/mimo_and_sync_with_usrp.pdf