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himanshu0707

Hi,

I am unable to find any option for switching to 3G on my Xperia U. Is it assumed that the phone will operate in 3G mode if we have a 3G datapack available ?

anandtapas

the settings are in wireless & networks and then mobile networks. Choose WCDMA only if you have good 3G coverage. otherwise choose WCDMA preffered.

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SONY should stop calling this WCDMA. as this is really HSPA

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anandtapas

the settings are in wireless & networks and then mobile networks. Choose WCDMA only if you have good 3G coverage. otherwise choose WCDMA preffered.

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SONY should stop calling this WCDMA. as this is really HSPA

sajibtech

Wideband Code Division Multiple Access W-CDMA – the radio technology of UMTS - is a part of the ITU IMT-2000 family of 3G Standards.

Both Frequency Division Duplex (FDD) and Time Division Duplex (TDD) variants are supported.

W-CDMA is a spread-spectrum modulation technique; one which uses channels whose bandwidth is much greater than that of the data to be transferred. Instead of each connection being granted a dedicated frequency band just wide enough to accommodate its envisaged maximum data rate, W-CDMA channels share a much larger band.

The modulation technique encodes each channel in such a way that a decoder, knowing the code, can pick out the wanted signal from other signals using the same band, which simply appear as so much noise.

UMTS uses a core network derived from that of GSM, ensuring backward compatibility of services and allowing seamless handover between GSM access technology and W CDMA.

At the end of 2007, W-CDMA represented over 70% of commercial 3G networks, with over 190 networks in 83 countries, and more than 160 million W-CDMA subscriptions.

75 million W-CDMA subscriptions were added between September 2006 and 2007 and throughout 2007 W-CDMA experienced average growth of 6.6 million subscriptions per month. W-CDMA handset sales now outstrip 2G sales in Europe as consumers seek high-end phones.

SONY TECHNICALY CORRECT...BUT SHOULD CALING 3G