Question

Difference between indoor and outdoor propagation

Answer 1

it is define as a radio propagation model that estimates the path loss inside a room or a closed area inside a building delimited by walls of any form.
whereas
A radio propagation model, also known as the radio frequency propagation model, is an empirical mathematical formulation for the characterization of radio wave propagation as a function of frequency, distance and other conditions

Answer 2

I hope this helps you......