Checking The Antenna Connection With An Ms - Huawei BTS3900 GSM Commissioning Manual

BTS3900 GSM
Commissioning Guide
in the configuration data are consistent with the actual frequencies and whether the test level is
normal.

7.2.1 Checking the Antenna Connection with an MS

This describes how to check the antenna connections with an MS. You can lock the MS on a
cell frequency and perform the dialing test. Then, you can determine the antenna connection
conditions by checking whether the dialing test is successful.
Prerequisite
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l
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Procedure
Step 1 Power on the test MS and check the process of the MS in searching the GSM network.
If...
The test MS fails to find the network,
The test MS finds the network,
Step 2 Lock the test MS to a frequency of a logical cell covered by the BTS.
Step 3 Perform the dialing test using the test MS. Then, check whether the antenna corresponding to
the frequency is connected properly according to the test results.
If...
The dialing test succeeds, You can infer that the feeder corresponding to the frequency is
The dialing test fails,
Issue 03 (2008-07-15)
The BTS is powered on and is working normally.
The antenna system is connected to the BTS cabinet.
The test MS is registered with the HLR.
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Then...
Check whether the test MS has a SIM card. If the
l
test MS does not have a SIM card, insert the SIM
card in the MS.
Check whether the SIM card supports
l
authentication and encryption. If the SIM card
does not support authentication and encryption,
replace the SIM card.
Check whether the test MS is functional. If the test
l
MS is faulty, replace it.
Go to Step
Then...
connected properly. Go to
You can infer that the feeder corresponding to the frequency may
be connected improperly. Check the connections of the feeder and
make adjustment accordingly..
7 Commission the Antenna System
2.
Step 4.
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