User's Manual

Table Of Contents
TX Pilot Time Offset Acceptance Test68P09255A61-4
Aug 2002
1X SC๎˜ 4812T BTS Optimization/ATP Software Release 2.16.1.x
FIELD TRIAL
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TX Pilot Time Offset Acceptance Test
Pilot Offset Acceptance Test
This test verifies the transmitted Pilot channel element Pilot Time Offset
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.
The Pilot Gain is set to 262 for each antenna, and all TCH elements from
the MCCs are forward link disabled. The BBX is keyed up, using both
bbxlvl and bay level offsets, to generate a CDMA carrier (with pilot
channel element only, Walsh code 0). BBX power output is set to
40 dBm as measured at the TX OUT connector (on either the BTS or
RFDS directional coupler).
The calibrated communications test set measures and returns the Pilot
Time Offset in ยตs, verifying results meet system tolerances:
๎˜‚ Pilot Time Offset should be within v3 ms of the target PT
Offset (0 ms).
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.
See Table 4-1 to perform this test.
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