4.4 WRFU
One WCDMA Radio Filter Unit (WRFU) supports 2 carriers or 4 carriers.
Panel
shows the panel of the WRFU.
Figure 4-36
Panel of the WRFU
Functions
The functions of the WRFU are as follows:
l
Implements the direct frequency conversion technique in the transmit channel. The
baseband signals are modulated to WCDMA RF signals. After being filtered and amplified
or being combined, the RF signals are transmitted through the duplex filter to the antenna
for radio transmission.
BTS3900
Hardware Description
4 BTS3900 Components
Issue 04 (2011-02-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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