Airbridge BTS3606E&3606AE
System Commissioning Guide
3 Commissioning Process
Issue 02 (2006-10-10)
Huawei Technologies Proprietary
3-25
z
If
Base band power
is normal, but
Digital power
is not normal, the values of
HPA
Output power
must be not normal in theory. In such a case, check the CMTR or OMTR
to locate the fault. For example, insert and remove it, or replace it.
z
If only
HPA Output power
is not normal, check the installation of CMPA or OMPA and
its connection with the CMTR or OMTR.
z
If all the parameter values reported in the interface tracing are normal, do as follows:
−
Check the connections between the CMPA/OMPA and the CDDU/IDFU/ODFU.
−
Check the antenna system and ports on the top of the cabinet for errors.
3.5.3 Reverse RSSI Test
The RSSI test includes the local RSSI test and the remote RSSI test.
In the case of the remote RSSI test, you can perform the reverse RSSI test by:
z
Selecting
Resource Monitoring
>
RSSI Monitoring
, or
z
Logging in to the BTS in Telnet mode.
In the case of local RSSI test, you can connect the WS to the BCKM by using a crossover
Ethernet cable and then log in to the BTS in Telnet mode. In this mode, you can use
commands to perform BTS commissioning.
This section describes how to conduct reverse RSSI tests in the local RSSI test. It also
describes the precautions you must take when conducting the tests.
Precautions
Note the following points before conducting the forward power test:
z
You can choose not to install RF fans; however, to ensure zero transmission power, you
have to connect the antenna with the CDDU/CDFU.
z
The unit for the average and peak values of RSSI is 0.1 dBm.
z
Check whether the coupling port without connection lines is connected to a matching
load to avoid generating internal interference and external radiation.
Test Procedure
The test procedure is as follows:
Step 1
Connect the cables as shown in Figure 3-9.
Figure 3-9
Connection for reverse RSSI test of the BTS
BTS
BCKM
Network
port
Crossover cable
