The basic structure of a 3G SAE network is quite similar to
a standard WCDMA network. From an architectural
viewpoint, the most important elements of the SAE network
are the base stations, the servers and other entities at the core
site, and the transport network connecting the two [7]. For
modeling purposes, the tool assumes that the base station
network is divided into two parts: the coverage base
transceiver sites (used to provide the necessary coverage over
the model area) and the capacity base transceiver sites (used to
provide the capacity needed due to service usage).