2.1 RRU3804 Equipment
The RRU3804 is an outdoor remote radio unit. The RRU3804 that is connected to the SRXU
supports 4-way RX diversity.
The RRU3804 has the following functions:
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The RRU3804 receives RF signals from the antenna system, down-converts the signals to
IF signals, and then transmits them to the BBU or the macro NodeB after amplification,
analog-to-digital conversion, digital down-conversion, matched filtering, and Digital
Automatic Gain Control (DAGC).
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The RRU3804 receives downlink baseband signals from the BBU or the macro NodeB,
forwards data from its cascaded RRU3804, performs filtering and digital-to-analog
conversion, and up-converts RF signals to the transmitting frequency band.
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The RRU3804 multiplexes RX and TX signals over RF channels and filters the RX signals
and TX signals. This enables the RX signals and TX signals to share the same antenna path.
2.1.1 DBS3800 Product Family
This describes the function modules and auxiliary facilities in the DBS3800 product family.
2.1.2 Appearance of the RRU3804
The RRU3804 features a modular structure with its ports at the module bottom and on the cabling
cavity.
2.1.3 LEDs on the RRU3804
The LEDs, on the LED panel of the RRU3804, indicate the running status of the RRU3804.
2.1.4 Ports on the RRU3804
The ports on the RRU3804 consist of grounding ports, power supply ports, transmission ports,
alarm ports, and other ports.
2.1.5 Panels of the RRU3804
The RRU3804 has a bottom panel, a cabling cavity panel, and an LED panel.
2.1.6 Engineering Specifications of the RRU3804
This describes the engineering specifications for the RRU3804.
2.1.1 DBS3800 Product Family
This describes the function modules and auxiliary facilities in the DBS3800 product family.
Function Modules of the DBS3800
The BBU3806, BBU3806C, RRU3801C, and RRU3804 are referred to as the function modules
of the DBS3800.
Figure 2-1
Function modules of the DBS3800
2 RRU3804 and SRXU Hardware
RRU3804
User Guide
2-2
Huawei Technologies Proprietary
Issue 01 (2007-11-29)
