If you are using the Proto Studio App to Live Beam to a ProtoOS device, then you will only need 15 Mbps upload and download speeds on both the device beaming and the device receiving the beam.
The easiest way to tell if your device is running ProtoOS is if the serial number starts with BTTN.
If you are using the Live Beam Kit, you will need 25 Mbps upload and download speeds on both the Live Beam Kit and the device receiving the beam.