Specifications

Fully Coded 3GPP W-CDMA Personality User’s and Programming Guide 2-105
ESG Family Signal Generators Using Functions
Option 200 3GPP W-CDMA Base Station Performance Testing
Intermodulation Response Rejection (3G TS 25.141.7.6)
This section explains how to configure your test system, including signal generator
settings and test system connections, in order to complete an intermodulation response
rejection performance test on your base station (BS). It includes an example performance
test procedure and performance test record.
NOTE An external source capable of providing CW at an amplitude of
−
48 dBm
across a frequency range of 1920.0 to 1980.0 MHz is required for IRR
performance testing.
Specification Definition
Intermodulation response rejection is a measure of the capability of a receiver to receive a
wanted signal on its assigned channel frequency in the presence of two or more interfering
signals which have a specific frequency relationship to the wanted signal.
1
Performance Test Objective
The objective of this performance test is to determine the Intermodulation Response
Rejection (IRR) performance of your BS against limitations described in the 3GPP
W-CDMA RF specification (3G TS 25.141 V3.4).
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.
1. From 3rd Generation Partnership Project; Technical Specification Group Radio Access Networks;
Base station conformance testing (FDD) Technical Specification 3G TS 25.141 V3.4 (2000-12).