Agilent Technologies ESG Specifikace stáhnout pdf (Strana 118)

2-102 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

Part A. Modulated Interferer Measurements

1. Introduce the modulated negative frequency offset out-of-band interferer.

The out-of-band interfering stimulus is also made available at the RF output of ESG 2.

In accordance with the 3GPP W-CDMA RF specification, the center frequency of this

interferer must be offset a minimum of 10 MHz below the center frequency of

fundamental W-CDMA signal. The amplitude of this interferer is

−

40.00 dBm.

On ESG 2:

Press

Frequency and enter a value between 1900 MHz and 1920 MHz. This value must

be at least 10 MHz below the center frequency of the fundamental W-CDMA signal.

2. Measure the BER of the BS in the presence of the modulated negative frequency offset

out-of-band interferer.

The controller or BER test platform is measuring the bit error ratio of the BS in the

presence of both the fundamental W-CDMA signal from ESG 1 and the modulated

negative frequency offset out-of-band interferer from ESG 2.

3. Record the BER measurement results for the modulated negative frequency offset

out-of-band interferer in the column titled, “Negative Frequency Offset Interferer BER

Value” in Table 2-54.

4. Introduce the modulated positive frequency offset out-of-band interferer.

The out-of-band interfering stimulus is also made available at the RF output of ESG 2.

In accordance with the 3GPP W-CDMA RF specification, the center frequency of this

interferer must be offset a minimum of 10 MHz above the center frequency of

fundamental W-CDMA signal. The amplitude of this interferer is

−

40.00 dBm.

On ESG 2:

Press

Frequency and enter a value between 1980 MHz and 2000 MHz. This value must

be at least 10 MHz above the center frequency of the fundamental W-CDMA signal.

5. Measure the BER of the BS in the presence of the modulated positive frequency offset

out-of-band interferer.

The controller or BER test platform is measuring the bit error ratio of the BS in the

presence of both the fundamental W-CDMA signal from ESG 1 and the modulated

positive frequency offset out-of-band interferer from ESG 2.

6. Record the BER measurement results for the modulated positive frequency offset

out-of-band interferer in the column titled, “Positive Frequency Offset Interferer BER

Value” in Table 2-54.

Part B. CW Interferer Measurements

NOTE An external signal source capable of providing CW at an amplitude of

−15 dBm across a frequency range of 1.000 MHz to 12.750 GHz is required for

out-of-band performance testing.

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