Now, before we proceed further, it is important to differentiate between the 3D and deep 2D distance
as it is specified in the 3GPP documents.
And you can see it here in this 3D document.
Now the 2D distance is the ground distance between the base station and the user equipment.
In this document, user equipment is called as the user terminal and this is the height of the user
equipment or visuals at terminal.
Now, the direct distance between the GMB antenna and the user equipment is the 3D distance.
And if the user equipment is inside the building in that case, the total ground distance between the
GNP are between the base station and the user equipment would be the sum of the ground distance that
is outside and the ground distance that is in sight.
Similarly, the 3D distance are the total direct distance between the antenna and the user equipment
would be the sum of the 3D distance that is outside and the 3D distance that is inside.
Now, the Portal 3D distance between the GMB antenna and digital equipment can easily be calculated
using this formula, which is based upon deep Pythagoras.
So we calculate the total 2D distance by summing these two values, and then we take its square value
and then we subtract.
The U.S. recoupment height from the base station at the GNP height, and we take its square and then
we sum these two values and take the under route.
And as a result, we get the portal through the distance between the GNP and the city.