Generic Cell Site Configuration

Example of a generic cell site configuration, which is a
monopole cell site. The site has an equipment hut associated with it that
houses the radio transmission equipment. The monopole, which is next to
the equipment hut, supports the antennas used for the cell site at the very
top of the monopole. The cable tray, which is between the equipment hut
and the monopole, supports the coaxial cables that connect the antennas to
the radio transmission equipment.

The radio transmission equipment used for a cellular base state, located
in the equipment room, is shown in Figure 2-4. The equipment room layout
is a typical arrangement in a cell site. The cell site radio equipment consists
of a base site controller (BSC), a radio bay, and the amplifier, TX, bay. The
cell site radio equipment is connected to the Antenna Interface Frame (AIF),
which provides the receiver and transmit filtering. The AIF is then connected to the antennas on the monopole through use of the coaxial cables,
which are located next to the AIF bay.

The cell site is also connected to the MTSO through the Telco bay. The
Telco bay either provides the T1/E1 leased line or the microwave radio link
connection. The power for the cell site is secured through the use of power
bays and rectifiers, which convert AC electricity to DC. Batteries are used
in the cell site in the event of a power disruption to ensure that the cell site
continues to operate, until power is restored, or the batteries are exhausted.