Agilent Technologies ESG Specifikace stáhnout pdf (Strana 68)

2-52 Fully Coded 3GPP W-CDMA Personality User’s and Programming Guide

Using Functions ESG Family Signal Generators

3GPP W-CDMA User Equipment Performance Tests Option 200

On ESG 2:

a. Press

Frequency and enter a value between 2185 MHz and 2230 MHz to set the

carrier frequency of the band 1 positive frequency offset CW interferer.

b. Press

Amplitude >

−

44 > dBm to set the amplitude of the band 1 positive frequency

offset CW interferer.

c. Press

RF On/Off until the RF ON annunciator is displayed on ESG 2 to activate the RF

output.

5. Measure the BER of the data received by the UE on RMC 12.2 kbps (25.101 V3.3) in the

presence of the positive frequency offset interferer for band 1.

The controller (or BER test platform) is measuring the bit error ratio of the UE in the

presence of both RF output waveforms, Î

(from ESG 1) and the positive frequency

offset interferer I

blocking

(from ESG 2).

6. In Table 2-28, record the measured BER value in the column titled, “Positive Frequency

Offset Interferer BER Value.”

7. Compare both the BER values recorded in columns “Negative Frequency Offset

Interferer BER Value” and “Positive Frequency Offset Interferer BER Value” to the

allowable values in the column titled, “Specification Limitations” (both values must be

within the allowable specification for a PASS status). Record the status of the UE as

PASS or FAIL in the column titled, “PASS/FAIL Status.”

Part B. Band 2 Out-of-Band Blocking Characteristics Measurements

1. Introduce the negative frequency offset CW interferer for band 2.

The band 2 negative frequency offset interfering stimulus is made available at the RF

output of ESG 2. In accordance with the 3GPP W-CDMA RF specification, the center

frequency of this band 2 interferer (I

blocking

) must be between 2025 MHz and

2050 MHz. The amplitude of I

blocking

−

30.0 dBm.

On ESG 2:

a. Press

Frequency and enter a value between 2025 MHz and 2050 MHz to set the

carrier frequency of the band 2 negative frequency offset CW interferer.

b. Press

Amplitude > −30 > dBm to set the amplitude of the band 2 negative frequency

offset CW interferer.

c. Press

RF On/Off until the RF ON annunciator is displayed on ESG 2 to activate the RF

output.

2. Measure the BER of the data received by the UE on RMC 12.2 kbps (25.101 V3.3) in the

presence of the negative frequency offset interferer for band 2.

The controller (or BER test platform) is measuring the bit error ratio of the UE in the

presence of both RF output waveforms, Î

(from ESG 1) and the negative frequency

offset interferer I

blocking

(from ESG 2).

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