What does UL AntenaPort means?

Hi ALl.

What does UL AntenaPort means?

Is this some actual UE Antena?

Tx, rx, trx, diversity antennas…
Many antennas.
Based on band configuration active antenna can be combination of 4 to 5 or 6 antennas.
At least 4 guarantee because LTE had at least 4.