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new products
Rohde & Schwarz supports 5G signal
generation and analysis based on Verizon 5G
open trial specifications
Rohde & Schwarz has successfully demonstrated the
generation and analysis of 5G signals based on the
characteristics as specified in the Verizon open trial
specifications. The R&S SMW200A vector signal generator
and the R&S FSW signal and spectrum analyzer both
provide outstanding test and measurement capabilities,
resulting in an EVM performance of 1 % when applying
these 5G signals.
In July 2016, Verizon Wireless, a tier 1 network operator
in the United States, supported by leading infrastructure,
chipset and terminal manufacturers, published technical
specifications that describe thephysical layer characteristics
of a 5G signal. The specified signal is derived from LTE and
adapted to be used at cm frequencies, initially 28 GHz but
also 39 GHz. Those frequencies were recently allocated
for 5G wireless communications by the local regulator,
the Federal Communications Commission (FCC). The
proprietary signal is a multicarrier OFDM signal with a
subcarrier spacing of 75 kHz. It is aiming for a bandwidth of
100 MHz per component carrier. Up to eight carriers can be
aggregated. The basic mode of operation is TDD.
Thanks to their built-in flexibility, the Rohde & Schwarz
signal generation and analysis instruments already support
the basic characteristic of the specified 5G Verizon signal.
The R&S SMW200A vector signal generator equipped
with theR&S SMW-K114 5G waveform candidate software
option makes it easy to configure OFDM signals with
the required 75 kHz subcarrier spacing and 100 MHz
bandwidth. Additionally, preamble and user data settings
enable creation of 5G signal with the basic characteristics
as specified by the Verizon 5G technical forum. This means
that reference symbols can be set, and data modulation
such as QPSK, 16QAM, 64QAM and even higher-order
modulation schemes such as 256QAM can be applied.
Using the R&S FS-K96 OFDM vector signal analysis
software in combination with the R&S FSW signal and
spectrum analyzer allows the full characterization of
such a 5G signal by simply loading into the software a
configuration file that reflects the parameterization of the
5G Verizon signal.
When characterizing DUTs such as newly developed power
amplifiers for the cm frequency range, test instruments
themselves can influence the measurement results.
Rohde & Schwarz achieved outstanding performance with
theR&S SMW200A and R&S FSW in the trial. When using
the test instruments to measure the EVM of a 5G signal at
28 GHz, measurement results were below 1 % across a 10
dB power sweep, meaning that the test instruments did not
impact the measurement.
With these testing capabilities, Rohde & Schwarz as a
leading supplier of test and measurement solutions for LTE-
Advanced and LTE-Advanced Pro, shows its commitment
to provide continuous support of 5G test capabilities.
Further information about these can be found here: http://
www.rohde-schwarz.com/ad/press/5gTektronix Enhances Optical Modulation
Analyzer Software Enables Leading Edge
Coherent Research on Multi-Channel Optical
Transport Systems
Tektronix, a leading worldwide provider of measurement
solutions, today announced a series of enhancements to
its optical modulation analyzer (OMA) software. The latest
release provides optical research engineers with the ability
to evaluate multi-channel coherent modulation schemes
with confidence using a single measurement system.
Engineers can now calibrate and control multiple OMA’s to
easily acquire and analyze simultaneous data from multiple
channels such as different wavelengths or fiber cores.
“This release of our OMA software will improve the multi-
channel test experience for researchers developing
advanced coherent optical communication and networking
technologies such as QAM or DP-QPSK,” saidBrian Reich,
general manager, Performance Oscilloscopes, Tektronix.
“We are reducing the cost of setting up multiple OMA
systems and we’re reducing the time between receiving
multiple OMA hardware systems and getting calibrated,
synchronized data from those systems.”
New-Tech Magazine Europe l 79