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Aeroflex launches TM500 LTE-A Test Mobile

Posted: 24 Jul 2012 ?? ?Print Version ?Bookmark and Share

Keywords:test mobile platform? carrier aggregation? cell edge performance? coverage area?

Aeroflex Ltd has added support for enhanced Inter Cell Interference Cancellation (eICIC) to the TM500 Test Mobile platform. Functionality for testing carrier aggregation was added to the platform earlier this year.

eICIC is an enhanced inter-cell interference coordination technique specifically designed to improve the overall performance of heterogeneous network (HetNet) deployments, and is one of the main features specified for LTE-Advanced (LTE-A) in 3GPP Release10. The main application of eICIC is to improve cell edge performance and coverage in HetNet deployment scenarios where nodes of different typesmacro-, micro- and picocellshave coverage areas that partially overlap.

This latest enhancement to the TM500 Test Mobile platform allows engineers developing and testing LTE base stations (eNodeB) to integrate and validate the eICIC feature and to verify the advantages of heterogeneous deployments.

Heterogeneous networks address the need for increased network capacity. Self-organizing networks will be an important method for improving heterogeneous network performance and efficiency in an automated way. This brings the need for more sophisticated interference management techniques to exploit these benefits, and also the right test instruments to verify this performance.

The addition of LTE-A eICIC support and the launch of the TM500 LTE-A Test Mobile tracks all the latest 3GPP updates and ensures that infrastructure vendors can test them as soon as they are needed.

The TM500's support for eICIC measurements, which applies to both FDD and TDD, includes logging the eICIC specific protocol messages and physical layer measurements.

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.

The eICIC support impacts the UE measurements procedures in order to feedback 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 signaling (ABS patterns), verifying the benefits of interference management.

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