|[May 14, 2014]
Signals Research Group's New LTE Chipset Benchmark Study Focuses on Cat 4 Data Throughput
SUNNYVALE, Calif. --(Business Wire)--
Communications, the leader in testing networks, services and
devices, announced today it has collaborated with Signals
Research Group (SRG) to benchmark data throughput performance of six
LTE Category 4 (Cat 4) capable chipsets from Ericsson, HiSilicon, Intel (News - Alert),
MediaTek, Qualcomm, and Samsung. The study included a mix of commercial
and pre-commercial chipsets and is a part of an overall LTE chipset
performance analysis series which will include LTE TDD and Carrier
Aggregation in future reports.
The key conclusions of this test include the following:
Samsung's (News - Alert) pre-commercial chipset was the top performer, based on its
average throughput and its individual finishing place in each of the
Results showed significant variance in performance with the more
challenging conditions (i.e., low signal strength and high
"When a pre-commercial chipset takes top honors, one must also take into
consideration other factors, such as stringent operator acceptance
testing, which could identify problems that fall outside the scope of
our study. In the case of Samsung, this issue is somewhat mitigated
because it has brought other LTE (News - Alert) chipsets to commercial status,"
commented Michael Thelander, the President of Signals Research Group.
"It is also important to note that a top-performing chipset will ot
necessarily result in a top-performing mobile device since a poor
antenna design or a non-optimized RF front-end can severely degrade RF
performance - a point that we proved in our last study with Spirent (News - Alert)."
CS8 Mobile Device Test System enabled SRG to measure how each
chipset performed under identical conditions and capture key performance
indicators (KPIs) which provide additional insight into why some
devices/chipsets behaved differently than others. The Spirent CS8
provided additional value to the study as it is being utilized by
several of the mobile operators who have recently launched commercial
"It was both motivating and exciting to once again partner with SRG and
showcase the evolution of data throughput performance since the initial
Signals Research Group chipset benchmark study in 2007," said Nigel
Wright, Vice President Spirent Communications (News - Alert). "With peak data rates
observed at approximately thirty times higher than our first study, the
results have once again demonstrated the potential of LTE and exposed
the range of performance in the complex scenarios inherent in
next-generation chipsets and devices."
The study included tests for LTE FDD data throughput performance for
some of the industry's most popular mobile chipsets. SRG tested all of
the chipsets in Category 4 mode. A Category 4 device is capable of
supporting up to approximately 150 Mbps in a 20 MHz FDD channel, while a
Category 3 device is limited to approximately 100 Mbps. In this study,
the chipsets were subjected to 29 different test scenarios that combined
a mix of fading profiles, transmission modes and different MIMO
correlation factors using Spirent's CS8 test platform.
For a preview of the report in Signals Ahead, "Chips and Salsa XVIII:
LTE Chipset Performance Benchmark Results: The Cat 4 Is Out Of The Bag"
please visit the consultancy's website at www.signalsresearch.com.
For more information on Spirent's CS8 test system, please visit http://www.spirent.com/Products/CS8.
About Spirent Communications plc
Spirent Communications plc. (LSE: SPT), a global leader in test and
measurement, offers an extensive portfolio of solutions to test data
centers, cloud computing and virtualized environments, high speed
Ethernet networks and services, 3G/4G wireless networks and devices,
network and application security, and positioning technologies. For more
information visit http://www.spirent.com/about-us/News_Room/About_Spirent_Communications_plc.aspx
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