CC3220SF: Reading the SNR of wifi connection

Part Number: CC3220SF

Tool/software:

Hi,  I'm looking for some help maintaining a connection and possibly switching channels  when a wifi connection  gets intermittent.
Given a wifi connection  between  the AP (CC32XX)  and a connected device, can the AP determine the SNR  of the connection using the simplelink API?

I see there is a field in the API called uiSNRThreshold but it's not discussed.
Is there  more documentation or information on this?

Can the wifi channel be changed intelligently? 
Any help would be greatly appreciated!

-Raul