User's Guide

Installation & Methods
MBTS
35463.DOC Samsung Telecommunications America Wireless Systems Lab
ID: Rev: Confidential and Proprietary Page 12 of 32
• It generates and distributes system clock and TOD from the signals received from the GPS
antenna.
• It compensates the clocks for network synchronization.
• It manages the hardware and software of the BTS.
• It monitors and reports hardware alarms.
2.3.4 BSTB
The BSTB (BTS System Test Block) performs diagnosis and maintenance of the receive and transmit
antennas.
2.3.5 CBFB
The CBFB (CDMA Band-pass Filter Block)
2.3.6 CMDB
The CMDB (CDMA Modulator and Demodulator Block) includes the CCEA (CDMA Channel Element
Assembly), the CATA (Control and Transmit Assembly), the CABA (Clock distribution/AGC Bank Assembly),
the SICA-A (Sector Interface Card Assembly-A), and the PCU-F (Power Converter Unit-F). The CMDB
performs the following major functions:
• It performs baseband to IF upconverting.
• It performs IF to baseband downconverting.
• It handles the receive IF Automatic Gain Control (AGC).
• It performs the CDMA Modulation and Demodulation.
2.3.7 COMB
The COMB (COMbiner Block) combines the output signals from each HPAB into the input signal for each
AFEB. It acts as a 3-way power combiner.
2.3.8 HPAB
The HPAB (High Power Amplifier Block) receives signals from the upconverter of the transceiver unit,
amplifies the signals by 46dB, and sends then to the AFEB. The HPAU (High Power Amplifier Unit) is a linear
amplifier and can amplify one CDMA carrier
2.3.9 RXDB
The RXDB (Receiver Distribution Block) transfers signals received from the AFEB to the XCVB of each rack.
2.3.10 XCVB
The XCVB (Transceiver Block) includes the XMCU-A (Transceiver Master Control Unit-A), the XSCB
(Transceiver Slave Control Board), the TUCB (Transmit Up-Converter Board), the DCRB (Diversity Cell
Receiver Board), and the TPSU (Transceiver Power Supply Unit).
3 INSTALLATION PLANS AND PROCEDURAL GUIDELINES
The installation, deployment, and maintenance of the BTS System by Samsung requires qualified,
experienced personnel. The following installation instructions have been written for such personnel.
The BTS provides the air interface transmission and reception of the CDMA signal. The BTS is physically
mounted near the antenna and may operate indoors or outdoors. The installation of the BTS Main Unit is
estimated to take less than five days to install, provided that the ac/dc power and T1/E1 lines are available
on-site. The below procedures should be followed where there is no superseding documentation.