
Fully Coded 3GPP W-CDMA Personality User’s and Programming Guide 2-111
ESG Family Signal Generators Using Functions
Option 200 3GPP W-CDMA Base Station Performance Testing
4. Record the BER measurement results for the negative frequency offset interferers
measurement in the column titled, “Negative Frequency Offset Interferers BER Value”
in Table 2-58.
Subsection 3. Positive Frequency Offset Interferers Measurements
Complete the following steps to make positive frequency offset interferer IRR
measurements on your BS.
1. Introduce the positive
10 MHz offset interferer from the RF signal generator and
positive
20 MHz offset interferer from the ESG 2 (relative to the center frequency of the
W-CDMA signal) in the frequency range 1920.0 to 1980.0 MHz. The amplitudes of these
interferers are
−
48 dBm.
On ESG 2:
Press
Frequency > 1970 > MHz.
On the external signal source:
Set the RF output frequency to 1960 MHz.
2. Measure the BER of the BS.
The controller or BER test platform is measuring the bit error ratio of the BS in the
presence of the positive frequency offset interferers.
3. Record the BER measurement results for the positive frequency offset interferers
measurement in the column titled, “Positive Frequency Offset Interferers BER Value”
in Table 2-58.
4. Compare all of the values with the specification limitations and assign a PASS/FAIL
status to the BS.
Example Test Record
Use the following table to record the data from the IRR performance test.
Table 2-58 IRR Performance Test Record
Verification
BER Value
Negative
Frequency
Offset
Interferers
BER Value
Positive
Frequency
Offset
Interferers
BER Value
Specification
Limitations
PASS/FAIL
Status
BER ≤ 0.001
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