Product News: Test & Measuring Instruments
Communications Tester features interference cancellation.
Press Release Summary:
July 26, 2012 - Supporting all key LTE-A features of 3GPP Release 10, TM500 LTE-A Test Mobile platform includes enhanced Inter Cell Interference Cancellation, which optimizes performance of heterogeneous network deployments where nodes of different types-macro-, micro- and picocells-have coverage areas that partially overlap. System can be used to verify correlation between measurements reported by User Equipment and eNodeB signaling, verifying benefits of interference management.
Original Press Release
Aeroflex Launches TM500 LTE-A Test Mobile with Addition of Interference Cancellation for SON HetNets
Press release date: July 19, 2012
eICIC represents an extension of the interference management techniques that were used in LTE Release 8 and 9, and it differs from these techniques in that it is not transparent to the UE (User Equipment) and therefore needs to be verified with a test UE such as the TM500. eICIC requires coordination between each of the network nodes that communicate with each other through the X2 interface. In a typical application, a macrocell whose coverage area overlaps with that of one or more small cells can coordinate its transmissions with these nodes. This allows it to reduce the interference caused to the UEs belonging to these cells in certain subframes, by limiting the macrocell transmissions to DL Common Reference Signal (CRS) alone, with no data, during certain subframes - these are called Almost Blank Subframes (ABS). This results in the UEs seeing lower interference at the cell edge of the microcell or picocells, and gives the microcell or picocells the opportunity to perform a "cell range expansion" to increase the coverage area during these subframes. Cell range expansion techniques are used for offloading some of the UEs from the macrocell to the smaller cell when the macrocell is loaded too heavily, and are used to achieve better load balancing. The UE that has been offloaded needs to be scheduled from the smaller cell during the low interference ABS. Load balancing is an important constituent of SON, a range of techniques that promote the overall improvement of network performance and energy saving. The eICIC support impacts the UE measurements procedures in order to feed back correct and reliable information to the network. Along with these enhancements, the TM500 LTE-A Test Mobile can be used to verify the correlation between the measurements reported by the UE and eNodeB signalling (ABS patterns), verifying the benefits of interference management. Price and availability
For more information, contact your local Aeroflex sales office by visiting or calling Aeroflex Sales at (800) 835-2352 or firstname.lastname@example.org. About Aeroflex LTE and LTE-A Expertise
Aeroflex LTE leadership started with the delivery of test systems in 2007 and now continues with a complete range of end-to-end test systems that cover R&D, performance, service, and manufacturing test applications for LTE TDD and FDD network equipment and terminals. The TM500 Test Mobile family is in use with almost every base station manufacturer across the world, and can be regarded as the de facto standard for eNodeB development and testing. EAST500 is the only network capacity test solution that incorporates the proven Aeroflex TM500 LTE air interface. The Aeroflex 7100 LTE Digital Radio Test Set is a complete one-box test system providing all the tools required for the measurement and characterization of user equipment (UE) chip sets and mobile terminals to 3GPP LTE standards, including optional signal fading simulation. The PXI 3000 Series, modular RF test system based on PXI technology is a proven solution to accelerate throughput in manufacturing and time to market in R&D while catering for current and future RF test needs. It is particularly suited to modern cellular and wireless data communications and critical testing in a high volume manufacturing environment. Aeroflex has engineers working in centers around the world on its LTE and LTE-Advanced test systems, to support the current and next generation of networks and devices. About Aeroflex
Aeroflex Incorporated is a leading global provider of high performance microelectronic components and test and measurement equipment used by companies in the space, avionics, defense, commercial wireless communications, medical and other markets.