Huawei LampSite - 4.3.1 Installing an RHUB in a 19-Inch Cabinet or Rack

LampSite Solution
Product Description
2 Hardware Architecture
01 (2013-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
12
2.4 pRRU3901 Equipment
The pRRU, a remote radio unit, processes RF signals as follows:

The transmit channel receives the baseband signals from the BBU and performs
digital-to-analog conversion. The baseband signals are up-converted to the transmit
frequency band using the zero IF technology. The pRRU then filters and amplifies the
signals, which are sent to the antenna for transmission.

The receive channel receives the RF signals from the antenna. Then, the RF signals are
down-converted to baseband signals and sent to the BBU for processing after being
filtered and amplified.
NOTE
The CPRI data can be transmitted only using the Ethernet cable.
pRRU3901 supports the following:

Built-in or external antennas

PoE and AC/DC adapter

Flexible multi-mode configurations, with built-in RF cards for multiple radio access technologies
(RATs)
A pRRU supports only two RF cards in the current version.
2.4.1 pRRU3901 Exterior
Figure 2-7 shows the pRRU3901 exterior.
Figure 2-7 pRRU3901 exterior