Vodafone is preparing to launch
mobile broadband connections with an actual speed of 16Mb/sec,
following trials of the new HSPA+ standard.
HSPA+ offers a headline speed of 21Mb/sec, but Vodafone claims to have
recorded actual speeds of 16Mb/sec in field trials of the technology.
The company predicts that HSPA+ will deliver a typical download speed of
around 13Mb/sec in good reception areas, falling to a less impressive
average of 4Mb/sec in "typical cell locations".
Nevertheless, it represents a marked
improvement on today's HSDPA connections, which offer a headline speed
of 7.2Mb/sec on the Vodafone network, but only achieve an average speed
of around 2Mb/sec in our real-world tests.
HSPA+ achieves its higher download speeds by using the same kind of Multiple Input Multiple Output (MIMO) technology found on 802.11 Wi-Fi equipment. Both base stations and modems use multiple attenae to improve the chances of an uninterrupted signal reaching the user.
HSPA+ also uses a more advanced modulation technique, called 64QAM. The higher speed service will require users to upgrade their existing modem hardware.
Vodafone is continuing to test and validate hardware with its modem manufacturers, but says it "plans to make this technology available in selected commercial networks".
HSPA+ achieves its higher download speeds by using the same kind of Multiple Input Multiple Output (MIMO) technology found on 802.11 Wi-Fi equipment. Both base stations and modems use multiple attenae to improve the chances of an uninterrupted signal reaching the user.
HSPA+ also uses a more advanced modulation technique, called 64QAM. The higher speed service will require users to upgrade their existing modem hardware.
Vodafone is continuing to test and validate hardware with its modem manufacturers, but says it "plans to make this technology available in selected commercial networks".
Barry Collins
source: pcpro.co.uk
source: pcpro.co.uk
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