No. Function Operation
6 Selects baud rate for
communicating with the BTS
Set as ON, indicating that the
baud rate is 9600. (If it is set
as OFF, the baud rate is
19200.)
7 and 8 Reserved and not defined Set as OFF
5.7 WGRU
The WGRU (WCDMA GPS Receiving Unit) receives and processes positioning information
and synchronization timing signals from the GPS, and then outputs the timing signals as a system
clock source. These timing signals and positioning information can be used to generate PPS
signals and Network Assisted GPS (AGPS) positioning information. The WGRU is optional for
the NodeB which is installed in the WGRU box. The NodeB can be configured with one WGRU
which provides the positioning function.
Appearance
Figure 5-10 shows the exterior of WGRU, Figure 5-11 shows the WGRU installed in the WGRU
box.
Figure 5-10 Exterior of the WGRU
BBU3900
Hardware Description 5 Auxiliary Devices of the BBU3900
Issue 11 (2010-11-10) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5-15
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