User's Manual

Table Of Contents
Individual Acceptance Tests
FEB 2005 1X SC 4812T Lite BTS Optimization/ATP 4-11
PRELIMINARY
RX and TX Testing
The following individual ATP Tests can be used to evaluate specific
aspects of BTS Operation against individual performance requirements.
All testing is performed using the LMF GUI Environment.
TX Testing
TX Tests verify any given Transmit Antenna Path and Output Power
Control. All tests are performed using the external, calibrated Test
Equipment. All measurements are made at the appropriate BTS TX
OUT Connector(s).
TX Tests verify TX Operation of the entire CDMA Forward Link using
selected BBX Cards assigned to respective Sector Antennas. Each BBX
is keyed–up to generate a CDMA Carrier (using both bbxlevel and
BLO) at the CDF File–specified Carrier Output Power Level.
RX Testing
RX Testing verifies Receive Antenna Paths for BBX Cards selected for
the test. All tests are performed using the external, calibrated Test
Equipment to inject a CDMA RF Carrier with all zero Longcode at the
specified RX Frequency at the appropriate BTS RX IN Connector(s).
RX Tests verify RX Operation of the entire CDMA Reverse Link using
all equipped MCC Cards assigned to all respective sector/antennas.
Individual Tests
Spectral Purity TX Mask
This test verifies that the transmitted CDMA Carrier Waveform
generated on each sector meets the transmit Spectral Mask Specification
(as defined in IS–97) with respect to the assigned CDF File Values.
Waveform Quality (Rho)
This test verifies that the transmitted Pilot Channel Element Digital
Waveform Quality (Rho) exceeds the minimum specified value in IS–97.
Rho represents the correlation between the actual and perfect CDMA
Modulation Spectrums. 1.0000 represents 100% (or perfect correlation).
Pilot Time Offset
The Pilot Time Offset is the difference between the Communications
System Test Set Measurement Interval (based on the BTS System Time
Reference) and the incoming block of transmitted data from the BTS
(Pilot only, Walsh Code 0).
Code Domain Power/Noise Floor
This test verifies the Code Domain Power Levels, that have been set for
all ODD numbered Walsh Channels, using the OCNS Command. This is
done by verifying that the ratio of PILOT divided by OCNS is equal to
10.2 +
2 dB, and, that the Noise Floor of all EVEN–numbered “OFF”
Walsh Channels measures < –27 dB for IS–95A/B and CDMA2000 1X
with respect to total CDMA Channel Power.
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