Agilent and Nomor Research facilitate LTE field trials
November 03, 2010 // Colin Holland
A cost-effective approach for engineers who need to generate real-world cellular interference signal conditions to validate LTE system performance is being provided by cooperation between Agilent Technologies Inc. and Nomor Research GmbH (Munich, Germany).
Realistic emulation of the uplink inter-cell interference generated in a multi-cell LTE network is ensured through use of system-level simulation and complies with 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.
The test solution is currently being used by most infrastructure vendors participating in global LTE field trial activities and is now is being made widely available. 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.
"Performance evaluation of LTE systems must be done under realistic interference conditions," said Moray Rumney, lead technologist with Agilent. "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 added, "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," said Seidel.
Optimized RF Silicon-On-Insulator (SOI) drives monolithic integration of multi-band radios
June 19, 2013
STMicroelectronics has developed a silicon-on-insulator (SOI) CMOS process that can integrate all the RF functions of multi-band ...
Fully certified FlexRay transceiver enables ESD robust in-vehicle communication
IoT will be next silver screen, says media exec
Hard drives to hit billion-dollar mark by 2017 in video-surveillance applications, says IHS
Li-ion energy storage technology helps make smart grid for Pellworm Island even smarter
Data Fusion: the next frontier of software integration
June 19, 2013
In the last few years, the functionality of our mobile devices has come so far that consumers now treat them more like personal ...
“Prototype to Production”, the new Digi-Key trademark
STMicro signs memory design agreement with Rambus
X-FAB optimizes 180nm process for portable analog applications
InterviewSilica moves to fast lane in Europe's LED market
In the booming market for LED lighting, electronics distributor Silica intends to lead the pack by offering technological excellence at application level. The company is currently planning to offer tailor-made ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
The SoCKIT evaluation kit is Arrow's latest development tool, featuring an Altera Cyclone V SoC with a dual-core ARM Cortex-A9 MPCore processor integrated within its 28nm FPGA fabric.
Altera SoCs allow embedded system developers to differentiate their end product with customized hardware and software, and extend the product lifecycle through hardware and software updates in the field. This month, Arrow Electronics is giving away five SoCKIT evaluation kits featuring Altera’s ARM-Based SoCs, worth €249 each, together with the free entrance to one of Arrow’s SoC workshops organized throughout Europe.
And the winners are...
In our previous reader offer, Freescale Semiconductor was giving away five IMX6Q, Sabre-lite kits, worth £128.06 each.
Lucky winners include Mr. X. Salada Sole from the UK, Mrs A. Peric from Germany, Mr Z. Janosy from Hungary, Mr D. Gacina from Croatia and Mr B. Boris from France. All should be receiving their packages soon. Let's wish them some interesting findings with their projects.
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.