Specifications

Fully Coded 3GPP W-CDMA Personality User’s and Programming Guide 2-53
ESG Family Signal Generators Using Functions
Option 200 3GPP W-CDMA User Equipment Performance Tests
3. In Table 2-29, record the measured BER value in the column titled, “Negative
Frequency Offset Interferer BER Value.”
4. Introduce the positive frequency offset CW interferer for band 2.
The band 2 positive 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 2230 MHz and
2255 MHz. The amplitude of I
blocking
is
−
30.0 dBm.
On ESG 2:
a. Press
Frequency and enter a value between 2230 MHz and 2255 MHz to set the
carrier frequency of the band 2 positive frequency offset CW interferer.
b. Press
Amplitude >
−
30 > dBm to set the amplitude of the band 2 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 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
or
(from ESG 1) and the positive frequency
offset interferer I
blocking
(from ESG 2).
6. In Table 2-29, 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 C. Band 3 Out-of-Band Blocking Characteristics Measurements
NOTE Additional equipment is required for band 3 out-of-band performance testing
beyond the upper frequency limit of ESG 2:
• a signal combiner with three input ports and one output port
• an external source capable of providing CW at an amplitude of −15 dBm
across a frequency range of x GHz (x = the upper RF output frequency
limitations of ESG 2) to 12.750 GHz.
1. Introduce the negative frequency offset CW interferer for band 3.
The band 3 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 3 interferer (I
blocking
) must be between 1 MHz and 2025 MHz.