ULRSSI in radio dot system?

Hi Experts.

Can anyone explain the ulrssi in radio dot system?

How is it different from Macro cells.

Very different.
Dot is for indoor, I think is a Ericsson proprietary system.
It’s like a mini RRU with antenna, no need of feeders and jumpers.
Just ethernet connection.

What about Baseband and BBU?

It supports 5212 5216 and others…so it has macro site capacity