User's Manual

TX Code Domain Power/Noise Floor Acceptance Test
68P09255A61-4
Aug 2002
1X SC 4812T BTS Optimization/ATP Software Release 2.16.1.x
FIELD TRIAL
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TX Code Domain Power/Noise Floor Acceptance Test
Code Domain Power Test
This test verifies the Code Domain Power/Noise of each BBX carrier
keyed up at a specific frequency per the current CDF file assignment.
All tests are performed using the external calibrated test set controlled by
the same command. All measurements are via the appropriate TX OUT
(BTS/RFDS) connector.
For each sector/antenna under test, the Pilot Gain is set to 262. All MCC
channel elements under test are configured to generate Orthogonal
Channel Noise Source (OCNS) on different odd Walsh codes and to be
assigned a full-rate gain of 81. The maximum number of MCC/CEs to
be tested an any one time is 32 (32 odd Walsh codes). If more than 32
CEs exist, then multiple sets of measurements are made; so all channel
elements are verified on all sectors.
BBX power output is set to 40 dBm as measured at the TX OUT
connector (on either the BTS or RFDS directional coupler).
Verify the code domain power levels, which have been set for all ODD
numbered Walsh channels, using the OCNS command. This is done by
verifying that Pilot Power (dBm) minus OCNS Power (dBm) is equal to
10.2 $
2 dB and that the noise floor of all “OFF” Walsh channels
measures v
-27 dB (with respect to total CDMA channel power).
NOTE When performing this test using the LMF and the MCC is an MCC8E
or MCC24E, the redundant BBX may fail or show marginal
performance. This is due to a timing mismatch that the LMF does not
address. Performing this test from the CBSC will not have this timing
problem.
The BBX then de-keys and, if selected, the MCC is re-configured to
assign the applicable redundant BBX to the current TX antenna path
under test. The test is then repeated. Upon completion of the test, the
OCNS is disabled on the specified MCC/CE.
See Table 4-1 to perform this test.
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