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UbiNetics test upgrade set to speed HSDPA 3G rollout

Posted: 01 Sep 2004 ?? ?Print Version ?Bookmark and Share

Keywords:ubinetics? hsdpa tester? ntt docomo? tm500? high speed downlink packet access?

Telecoms test gear specialist UbiNetics has extended the range of its HSDPA tester, the original version of which the Cambridge, England based company developed in close collaboration with Japanese 3G network operator NTT DoCoMo.

The latest addition to the TM500 HSDPA (High Speed Downlink Packet Access) Test Mobile, incorporating the Multi-UE option, allows a single test set to concurrently emulate up to 32 individual mobiles, each with an individually-programmable channel model to provide representative RF conditions.

Several TM500s can be connected together to simulate over 100 mobiles in one HSDPA cell.

The tester is targeted at Node B infrastructure manufacturers and operators to stress test early HSDPA networks before commercial roll-out.

"We have supplied the TM500 to almost all manufacturers developing a Node B for the very high speed down link version of 3G, and hope to sell this upgrade to them as well. The Multi-UE option, which uses the spare capacity we had in the 500 platform, is mainly a software upgrade and is purely a UbiNetics development," said Philip Windred, SVP for test and measurement products at the company.

"HSDPA optimizes the use of available power and bandwidth by varying the transmission to mobile phones depending on individual channel conditions. Overall performance is critically reliant on networks making fast and accurate decisions on which mobile to serve at any particular time, based on channel quality metrics returned by the mobiles," added Windred.

The upgrade will allow Node B developers and network providers to evaluate and optimize the scheduler function within the network, "and thus contribute to the success of HSDPA."

The extension to the TM500 will be shipping by the end of the year.

Windred says HSDPA now has a real momentum behind it with many carriers specifying it in their latest third generation orders from the infrastructure providers. He points to the recent deal between Lucent and Cingular for 3G trials that will incorporate the high-speed downlink version from the start.

However, he concurs that HSDPA may not be commercially available until 2006 at the earliest as handset makers are behind the curve in developing and testing the devices.

- John Walko

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