Date: October 22, 2010
Press Release
FOR IMMEDIATE RELEASE
Nomor Research GmbH and Agilent Technologies Inc. Provide Solution to Generate
LTE Uplink Inter-cell Interference Signals for LTE Field Trials and Performance Tests
Munich, Germany and SANTA CLARA, Calif., October 22, 2010 - Nomor Research GmbH
and Agilent Technologies Inc. (A) today announced the availability of a simple cost-effective
method for generating realistic LTE uplink inter-cell interference signals required for LTE
field trials by using Agilent’s MXG signal generators. This is the most cost-effective cellular
interference signal generation method available for engineers who need to validate LTE
system performance under real-world signal conditions.
Nomor Research has developed a method for generating realistic inter-cell interference
signals using off-the-shelf signal generators for performance testing in LTE field trials and lab
tests. Realistic emulation of the uplink inter-cell interference generated in a multi-cell LTE
network is ensured through use of comprehensive system level simulation according to 3GPP
and NGMN simulation methodology. The signal is physically generated by an Agilent MXG
signal generator and can be coupled into the receiver path at the base station.
Moray Rumney, Lead Technologist with Agilent: “Performance evaluation of LTE systems
must be done under realistic interference conditions. Until recently, the only way to do this
involved expensive and time-consuming deployment of large numbers of mobile devices in
adjacent cells. With this new method, a near equivalent interference environment can be
created at the base station representing the combined interference from hundreds of mobiles in
adjacent cells.”
Eiko Seidel, Chief Technical Officer of Nomor Research: “The newly standardized
orthogonal LTE uplink access scheme has changed the uplink interference characteristics in
such a way that traditional Gaussian noise methods for emulating interference are no longer
suitable for realistic performance testing. Inter-cell interference in today’s LTE networks is
highly variable with respect to time and frequency, and is dominated by a small number of
interferers per resource block, causing unexpected behavior for adaptive algorithms that
respond to inter-cell interference. Only realistic modeling of inter-cell interference offers
infrastructure manufacturers and operators a tool for testing advanced base-station scheduling
algorithms and for quantifying the true performance of LTE base-station equipment.”
The test solution offered is currently being used by most infrastructure vendors in global LTE
field trial activities and is now being made available to the LTE community. A set of default
interference files for representative scenarios is provided at no cost and may be used with any
Agilent MXG signal generator. An extended pack of interference files for alternative
deployment scenarios and customized parameter settings is available on request.
Date: October 22, 2010
Press Release
FOR IMMEDIATE RELEASE
Additional information about the Agilent MXG signal generators is available at
 www.agilent.com/find/MXG.
Information about Nomor’s uplink interference files is available at
 http://www.nomor.de/home/solutions-and-products/products/lte-uplink-interferencefiles
About Agilent Technologies
Agilent Technologies Inc. (NYSE: A) is the world's premier measurement company and a
technology leader in chemical analysis, life sciences, electronics and communications. The
company's 18,500 employees serve customers in more than 100 countries. Agilent had net
revenues of $4.5 billion in fiscal 2009. Information about Agilent is available at
www.agilent.com.
About Nomor Research GmbH
Nomor Research (www.nomor-research.com), based in Munich, Germany, is a leading
company in the research and development of future and emerging communication systems
that offers related consultancy services and products. Nomor, among other services, is known
for its state-of-the-art protocol stack implementations for Long Term Evolution where Nomor
offers LTE software modules and related design or integration service used in macro, pico or
femtocell base stations or in test equipment.
Contact:
Nomor Research GmbH
lte_ul_if @nomor.de
Tel.: +49 89 9789 8000
Contact:
Janet Smith, Americas for Agilent
+1 970 679 5397
janet_smith@agilent.com
Sarah Calnan, Europe for Agilent
+44 (118) 927 5101
sarah_calnan@agilent.com
Iris Ng, Asia for Agilent
+852 31977979
iris-hw_ng@agilent.com