[srslte-users] Info/Metric for working MIMO scenario ?

[Andre Puschmann]

Hi Christian,

On 2/12/20 10:32, Cristian Balint wrote:
> 1) Are there ways in srsLTE to see flags/metrics related to when MIMO is
> working properly (beside 't' trace in CLI) ?

For the eNB, the console trace is currently the best way to check for
UE-specific stats.

For MIMO, the most important value is the `ri` value in the trace. It
should be 2.0 for good MIMO performance.

> 
> 2) Are there ways to check on COTS UE extra information related to MIMO
> handling ?

On the UE you mean? If so, use apps like Network Signal Guru to check
the RI computed by the UE.


> 3) In the case of Soapy (with lime-usb) using latest 'master' MIMO is
> supposed to work right ?

It should, yes.


>    Simple speed test indicates no improvements w/o MIMO. However srsLTE
> reports booth 2*rx,2*tx channels to be handled & inuse in a generic way.

Check antenna positions, etc. and have a look at the RI value.

Cheers
Andre