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Fully Coded 3GPP W-CDMA Personality Users and Programming Guide 2-65
ESG Family Signal Generators Using Functions
Option 200 3GPP W-CDMA User Equipment Performance Tests
Intermodulation Characteristics (3G TS 25.101.7.8)
This section explains how to complete an intermodulation response rejection performance
test on your user equipment (UE). It includes a process definition, signal generator
configurations, test system connections, abbreviations, an example test procedure and
performance test record.
NOTE An external source capable of providing CW at an amplitude of
46 dBm
across a frequency range of 2100 MHz to 2180 MHz is required for IRR
performance testing.
Specification Definition
Intermodulation response rejection is a measure of the receivers ability to receive a
desired signal at its assigned channel frequency in the presence of two or more undesired
interferers which have a specific frequency relationship (i.e. third- or higher-order mixing
products within the frequency band of the desired channel) to the desired signal.
1
Performance Test Objective
The objective of this performance test is to determine the Intermodulation Response
Rejection (IRR) performance of your UE against limitations described in the 3GPP
W-CDMA RF specification (3G TS 25.101 V3.3).
Defining Measurement
The PASS/FAIL status of the DUT is determined by measuring Bit Error Ratio (BER) in
the presence of two specified, frequency-related interferers.
Abbreviations
Definitions of abbreviations used throughout 3G TS 25.101 V3.3 and the following example
performance test procedure:
Î
or
the received power spectral density
2
of the downlink as measured at the
UE antenna connector
I
ouw1
the received power of the unwanted CW interferer as measured at the UE
antenna connector
3
I
ouw2
the received power spectral density of the unwanted modulated interferer
as measured at the UE antenna connector
4
1. From 3rd Generation Partnership Project; Technical Specification Group Radio Access Networks;
UE Radio transmission and Reception (FDD) Technical Specification 3G TS 25.101 V3.3 (2000-06).
2. Defined as the ratio dBm/3.84 Mcps.
3. Undefined in 3G TS 25.101 V3.3.
4. Undefined in 3G TS 25.101 V3.3.
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