Rohde & Schwarz R&S FSL3 - 3 GPP Base Station Measurements (Option K72); Measuring the Signal Channel Power

3GPP Base Station Measurements (Option K72) R&S FSL
1300.2519.12 2.108 E-11
3GPP Base Station Measurements (Option K72)
This section explains basic 3GPP FDD base station tests by means of a setup with a signal generator,
e.g. an R&S SMU. It describes how operating and measurement errors can be avoided using correct
settings. The measurements are performed with an R&S FSL equipped with the 3GPP Base Station
Measurements option (K72).
The following measurements are described:
 Measuring the Signal Channel Power
 Measuring the Spectrum Emission Mask
 Measuring the Relative Code Domain Power
 Synchronization of the reference frequencies
 Behavior with deviating center frequency setting
 Behavior with incorrect scrambling code
 Measuring the Relative Code Domain Power
 Trigger offset
Furthermore, the test setup for base station tests is given:
 Setup for Base Station Tests
For measurements on base–station signals in line with 3GPP, test models with different channel
configurations are specified in the document "Base Station (BS) conformance testing (FDD)" (3GPP TS
25.141
V7.4.0).
For further information on measurement examples refer also to the Quick Start Guide, chapter 5 "Basic
Measurement Examples".
This option is available from firmware version 1.60.
Measuring the Signal Channel Power
The R&S FSL measures the unweighted RF signal power in a bandwidth of
22.0|84.3)1(5 =+=  MHzMHzf
BW
The power is measured in zero span using a digital channel filter of 5 MHz in bandwidth. According to
the 3GPP standard, the measurement bandwidth (5 MHz) is slightly larger than the minimum required
bandwidth of 4.7 MHz.
Test setup:
 Connect the RF output of the signal generator to the RF input of the R&S FSL (coaxial cable with N
connectors).
Signal generator settings (e.g. R&S SMU):
Frequency: 2.1175 GHz
Level: 0 dBm
Standard: WCDMA/3GPP
Test model: 1, 32 DPCH channels