04 | Keysight | Performing LTE and LTE-Advanced Measurements – Application Note
1 Introduction
The third-generation partnership project (3GPP) denes standards for development and
test of 3G and 4G system components. The technical specication (TS) 36.521-1 denes
requirements for radio frequency (RF) testing of long-term evolution (LTE) and LTE-
Advanced (LTE-A) user equipment (UE). This application note provides example test proce-
dures for RF testing of LTE and LTE-A UEs based on 3GPP TS 36.521-1 V12.2.0 (2014-06).
Many references are made to 3GPP TS 36.521-1 in this application note. In most cases,
these references are abbreviated as 36.521. References to other 3GPP documents are
abbreviated in a similar manner.
3GPP requires all tests to be performed over all E-UTRA bands supported by the UE.
In some cases, there are band-specic setups and requirements. This application note
provides example test procedures for frequency division duplex (FDD) E-UTRA Band 3.
Additional bands can be tested following a similar set of steps. E-UTRA bands are dened
in 36.521-1 clause 5.
3GPP also requires all tests to be performed over the lowest and highest channel band-
widths supported in each band. In addition, all tests must be performed with a channel
bandwidth of 5 MHz. There are bandwidth-specic setups and requirements as well. This
application note provides example test procedures for a channel bandwidth of 20 MHz.
Additional bandwidths can be tested following a similar set of steps. Channel bandwidths
for each E-UTRA band are dened in 36.521-1 clause 5.
In this application note from Keysight Technologies, Inc. example procedures use the
E7515A UXM wireless test set with E7630A LTE/LTE-A lab application (LA) software. The
software version is 1.2.1.0, released on 30 September 2014. Unless otherwise indicated,
E7530A LTE/LTE-A test application (TA) software can also be used with the example proce-
dures. Visit the Keysight UXM web page for detailed product information and access
to software downloads at www.keysight.com/nd/uxm.
3GPP denes specic requirements for RF testing, but RF design verication often requires
additional test congurations. Although this application note describes example procedures
based on 3GPP tests, the UXM also supports testing using non-standards-based
congurations with exible RB allocation and modulation setup, many graphical measure-
ment results and powerful measurement algorithms.
The UXM provides the tools needed to be condent about a device’s RF performance.
These include exible receiver test, trusted X-Series transmitter measurement science, and
network emulation. This enables conguration of dened conditions with varying frequen-
cies, power, and modulation, measurement to limits, and determination of the root-cause
of failures with reliable, repeatable results that can be automated and easily shared. Test
from early designs to nished products since the UXM supports both signaling and non-
signaling test, making it easy to “just connect.”
Keysight also provides fully automated and independently validated conformance solu-
tions that provide assured compliance to the latest version of 3GPP test specications. Visit
www.keysight.com/nd/systems for more information.
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