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LTE test device offers decoding of eMBMS

Posted: 01 Dec 2011     Print Version  Bookmark and Share

Keywords:LTE  demodulation  FDD  TDD 

Aeroflex Ltd launches TM500 LTE Test Mobile that supports enhanced Multimedia Broadcast Multicast Services (eMBMS) and offers demodulation and decoding of eMBMS signals for both FDD and TDD versions of LTE.

According to the company, the TM500 platform is the industry's de facto standard test mobile that enables verification of the functionality and performance of eMBMS and will include dedicated measurements for low level debugging.

With the addition of the eMBMS feature, the Aeroflex TM500 now supports all the headline features announced with Release 9 of the Third Generation Partnership Project (3GPP) LTE standard.

eMBMS allows LTE mobile network operators to maximise Return on Investment (RoI) by providing high end services such as mobile TV, localized news and traffic updates without making large additional investments in network infrastructure. eMBMS is the most viable technique for providing IP multi-cast data transmission over an LTE network in a scalable manner, added Aeroflex. It allows for efficient sharing of the resources of a single network between multi-cast broadcast traffic and more traditional data services. This is achieved by dynamically changing the resource usage between the two types of traffic depending on their instantaneous needs.

The eMBMS testing capability of the TM500 includes demodulation and decoding of IP multi-cast transmission from different cells; reception of simultaneous unicast and multi-cast transmissions; MBMS protocol logging and validation; and power measurement of the eMBMS-specific reference signal. Verification of both eMBMS signal quality and synchronised cells within a Multimedia Broadcast Single Frequency Network (MBSFN) area is also performed. Multiple multi-cast channels (MCH) from different MBMS service areas can likewise be demodulated, described Aeroflex.

"The Aeroflex TM500 is leading the market with full support for3GPP Release 9 headline features including support for eMBMS measurements," said Nicola Logli, product manager at Aeroflex. "The TM500 provides a fully software-upgradeable path for the test of LTE eNodeBs. This includes everything from functional single-UE test through multi-UE to load testing based on the emulation of thousands of UEs working in multiple cells."

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