4G/5G/Cellular News, Products & Content

MIMO Expert Forum at CTIA 2011 – Top Ten Questions….and Answers!

April 6, 2012

The CTIA MIMO Expert Forum brought together technologists from ETS-Lindgren, Agilent Technologies, Spirent Communications and EB (Elektrobit) to discuss the challenges of OTA testing. The “Top Ten” questions received from attendees at last year’s CTIA MIMO Expert Forum are answered below.

MIMO OTA Measurements – The Next Generation Platform for Wireless Testing

The CTIA Wireless 2012 MIMO OTA Expert Panels

April 6, 2012

David Vye - Editor, Microwave Journal

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Extensive efforts are underway to standardize on a next generation platform for performance testing of wireless devices, taking into account LTE, A-GPS, uncertainty budgets and use of head/hand phantoms. This Forum provides an understanding of system performance and presents the core elements - such as the chamber, software and instrumentation - that facilitate systematic and repeatable measurements of MIMO devices. A panel discussion with the speakers from ETS-Lindgren, Agilent Technologies, Spirent, and Elektrobit concludes the Forum.

Spirent Communciations speaks to MWJ about MIMO beamforming and TD-LTE

April 5, 2012

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Madhusudhan Gurumurthy is a Senior Applications Specialist at Spirent Communications. He talked with Microwave Journal about beamforming and TD-LTE systems being deployed in China and across the globe.

Agilent Technologies, ETS-Lindgren host CTIA Wireless MIMO OTA educational panel discussion

April 5, 2012

Agilent Technologies

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Agilent Technologies Inc. announced its participation, with ETS-Lindgren, in an educational panel discussion – “MIMO OTA Measurements: The Next Generation Platform for Wireless Testing” – at the International CTIA Wireless event in New Orleans.

Azimuth announces ACE MX2 MIMO channel emulator and product strategy

April 5, 2012

Azimuth Systems, Acton, Mass.

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Azimuth Systems Inc. announced the ACE™ MX2 wireless channel emulator together with its comprehensive strategy for real world test. The ACE MX2 MIMO Channel Emulator, Azimuth’s newest channel emulator, is the first product created in support of the new strategy.

Agilent introduces industry’s widest-bandwidth MIMO PXI vector signal analyzer

April 3, 2012

Agilent Technologies

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Agilent Technologies Inc. announced the availability of a wideband MIMO PXI vector signal analyzer that delivers the industry’s highest-bandwidth signal analysis. The new analyzer enables R&D and test engineers to validate their MIMO 802.11ac designs with a unique combination of accuracy, speed, bandwidth and scalability in a small form factor.

Over-the-air Signal Challenges and Implications - Recommendation for LTE RAN

The CTIA Wireless 2012 MIMO OTA Expert Panels

March 27, 2012

David Vye - Editor, Microwave Journal

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Protocols used by LTE networks to leverage MIMO technologies are significantly impacted by correlation and thus by the channel models under which they’re tested. This Forum provides an understanding of over-the-air, multipath signal challenges, the impact on network performance and considerations for end-to-end testing. A panel discussion with speakers from Anritsu, Rhode &Schwarz, Azimuth and more to be announced will conclude the Forum.

Trends in Wireless Testing

March 15, 2012

Tommi Jamsa and Juha Ylitalo, Elektrobit

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In-depth look at several trends in wireless testing during the evolution of mobile technology from 2G to 4G and beyond

Compact Antenna for MIMO LTE Mobile Phone Applications

March 11, 2012

Gopinath Gampala and C.J. Reddy, EM Software & Systems Inc.; Oliver Stabler and Thomas Hager, AWE Communications GmbH

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Details the complete workflow of an antenna design for the LTE mobile phone applications, starting from the antenna design to the bit rate channel capacity calculations