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Fully Coded 3GPP W-CDMA Personality Users and Programming Guide 2-35
ESG Family Signal Generators Using Functions
Option 200 3GPP W-CDMA User Equipment Performance Tests
Adjacent Channel Selectivity (3G TS 25.101.7.5)
This section explains how to complete an adjacent channel selectivity performance test on
your user equipment (UE). It includes a process definition, signal generator configuration,
test system connections, abbreviations, an example test procedure and performance test
record.
Specification Definition
Adjacent Channel Selectivity (ACS) is a measure of a receivers ability to receive a
W-CDMA signal at its assigned frequency in the presence of an adjacent channel signal at
a given frequency offset from the center frequency of the assigned channel.
1
Performance Test Objective
The objective of this performance test is to determine the ACS 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 a specified adjacent channel interferer.
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
oac
the received power spectral density of the adjacent channel interferer as
measured at the UE antenna connector
3
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.
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