Agilent Technologies ESG Specifikace Strana 57

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Fully Coded 3GPP W-CDMA Personality Users and Programming Guide 2-41
ESG Family Signal Generators Using Functions
Option 200 3GPP W-CDMA User Equipment Performance Tests
2. Adjust the amplitude of Î
or
to the required value.
In accordance with the 3GPP specification, adjust the amplitude of Î
or
to
92.7 dBm.
On ESG 1: Press
Amplitude >
92.7
> dBm.
3. Introduce the adjacent channel (I
oac
) waveform.
The adjacent channel stimulus is made available at the RF output of ESG 2. In
accordance with the 3GPP W-CDMA RF specification, the center frequency of I
oac
can
be
±
5 MHz from the center frequency of Î
or
. The amplitude of I
oac
is
52.0 dBm.
On ESG 2:
Press
RF On/Off (or execute the appropriate SCPI command) until the RF ON
annunciator is displayed.
4. Measure the BER of the data received by the UE on RMC 12.2 kbps (25.101 V3.3) in the
presence of the adjacent channel interferer.
The controller (or BER test platform) is measuring the bit error ratio of the UE in the
presence of both RF output waveforms, Î
or
(from ESG 1) and the adjacent channel
interferer I
oac
(from ESG 2).
5. In Table 2-22, record the measured BER value in the column titled, “Adjacent Channel
BER Value.”
6. Compare the recorded BER value in the column titled, “Adjacent Channel BER Value”
to the allowable values in the column titled, “Specification Limitations” and record the
status of the UE as PASS or FAIL in the column titled, “PASS/FAIL Status.”
Example Test Record
Use the following table to record the data from the ACS performance test.
Table 2-22 ACS Performance Test Record
Verification BER
Value
Adjacent Channel
BER Value
Specification
Limitations
PASS/FAIL Status
BER
0.001
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