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A Visual Guide to AWS

Intro Bands Blocks Licenses Plans Comments  

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T-Mobile Spectrum?

by Jaw3000    Oct 16, 2006, 1:48 PM

Great article, although it does raise one question for me. In the article, you claim that the AWS spectrum, as well as the spectrum T-Mobile bought, corresponds to the UMTS bands used in Europe (at least the 2100 part), which will make it easy for existing 3G phones to work on AWS spectrum. The quote from the article is: "The upper part does line up perfectly with Europe's UMTS 2100 band, and the lower part does line up with Europe's DCS band. Therefore manufacturers already building GSM+WCDMA "world phones" actually won't have to support any additional frequency bands at all."

In T-Mobile's recent 3G announcement, they claim the AWS spectrum they bought is unfortunately "a few megahertz off from the UMTS 2100 used elsewhere, meaning existing 3G handsets designed to operate in Europe will be relegated to doing their 2.5G thing when roaming stateside (from Engadget)."

Since I don't understand spectrum allocation any more than this article introduced me to it, how does this work? How is T-Mobile's spectrum different from the 2100 used in Europe. Why won't my shiny new Nokia E61 with 2100 UMTS be able to work with the new 3G service being built out by T-Mobile (since it's both in 2100)? Again, thanks for the great article!

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