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Technology Stocks : Qualcomm Moderated Thread - please read rules before posting

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To: foundation who wrote (18638)	1/31/2002 6:39:44 AM
From: foundation	Read Replies (3) of 196612

3G MAST RANGE SHRINKS IN MANX TRIALS Wednesday January 30 12:00am Network News 'Cell breathing' takes unexpectedly heavy toll on capacity in third-generation test project. Third-generation mobile data trials on the Isle of Man have hit a stumbling block that could seriously affect business use when the service goes live. Initial tests prove that 200-300Kbps data rates are possible and that 3G users can browse standard HTML web pages wirelessly at similar speeds to DSL. But fluctuations in data rates and signal range, known as 'cell breathing', will affect the rollout of any commercial services by undermining the service reliability that business depends on. "Obviously network capacity is a finite thing affected by the number of people using it," said Manx Telecom CEO Chris Small at a demonstration last week. "You have to price it to attract enough people to make it worthwhile, but not so many as to clog up the network." Lars Goddell, senior telecoms analyst for Forrester Research, confirmed that, "Trials in Tokyo show it is possible to get data rates higher than 64Kbps on UMTS networks, but very few users are supported on the network at any one time." Cell breathing reduces the range of 3G masts, with the signal radius shrinking as more users transmit data to and from the antennas. Martin Tufft, head of applications and services for Manx Telecom, said the trial was a learning experience for all involved. The Manx pilot will also be used as a testbed by third-party developers looking to build mobile business applications. "Network optimisation is an ongoing exercise and we'll keep working to improve it," said Tufft. "Some of the internet applications being offered now don't work as well on radio as on fixed networks. They come out as expected in the lab, but that may change in real-world environments." contact_nnews@vnu.co.uk. wirelessweek.com

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