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2-90 Fully Coded 3GPP W-CDMA Personality User’s and Programming Guide
Using Functions ESG Family Signal Generators
3GPP W-CDMA Base Station Performance Testing Option 200
4. Compare the measured BER value in the column titled, “Verification BER Value” with
the limits from the column titled, “Specification Limitations.”
If the measured value is within the limits, continue to subsection 2.
If the measured value is outside the limits, determine the cause of failure and repair
the BS. After repair, return to Step 1 of this subsection.
Subsection 2. Dynamic Range Measurement
Complete the following steps to make a dynamic range measurement on your BS.
1. Modify the amplitude level the W-CDMA stimulus.
In accordance with the 3GPP W-CDMA RF specification, increase the amplitude of the
RF output power to
91.00 dBm.
On the ESG:
Press
Amplitude >
91 > dBm.
2. Introduce the AWGN interferer. This signal acts as an interferer to degrade the BER of
the BS.
On the AWGN signal source:
a. Set the RF output frequency to the same RF output frequency as the ESG.
b. Set the amplitude to
73.00 dBm.
c. Set the bandwidth to 3.840 MHz (3.84 Mcps data clock rate).
d. Activate the modulation.
e. Activate the RF output.
3. Measure the BER of the W-CDMA signal in the presence of the AWGN interferer.
The controller or BER test platform measures the BER of the BS in the presence of the
AWGN interferer.
4. Record the BER result in the column titled, “Dynamic Range BER Value” in Table 2-47.
5. Compare the recorded value of the BER result with the allowable values and record the
PASS/FAIL status for the BS.
Example Test Record
Use the following table to record the data from the dynamic range performance test.
Table 2-47 Dynamic Range Performance Test Record
Verification BER
Value
Dynamic Range
BER Value
Specification
Limitations
PASS/FAIL Status
BER 0.001
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