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There is new GSM-frequency in North and South America: 850 MHz. And the 3G [WCDMA] is starting to rise in all over the world.
SO, if it is technically feasible the trully world mobile phone must be 5-band: GSM 850/900/1800/1900/WCDMA.
This would be a real breakthrough!
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Posted: 2003-12-05 15:30:23
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The most that we have today is Quad-band phones.
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Posted: 2003-12-05 15:46:59
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More users = network saturated, solution: new frequency. Imagine in 2050 how much frequency will be
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Posted: 2003-12-05 15:54:06
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I think the mobile company have realised that its much cheaper to only have one band. Therfor do 3g have the same band all over the world. In about 5 years the gsm network is dead and everybody use 3g
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Posted: 2003-12-05 19:07:47
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Is the 900 frequency used very much today? Do we really need it?
I don't think GSM will be dead in 5 years. Three years ago it was said that everyone will be using 3G phones by now and I still haven't seen a successful 3G network, except NTT in Japan.
I think it is very unlikely that everyone will be using the same band around the world because of already occupied bands in use today, for instance, military, satellites, navigation systems, etc.
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Posted: 2003-12-06 02:45:52
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Not in 5 but in 10 it'll b dead.
This message was posted from a T610
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Posted: 2003-12-06 02:53:04
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No, that's not likely. Just look at the NMT here in sweden. GSM started in the beginning of the ninntey's, NMT (from wich GSM took over) will be shut down in the end of 2008 so I don't think GSM wont be used anymore in ten years.
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Posted: 2003-12-06 02:58:44
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Offcorse millitary will have their own satelite network but the public will use wcdma or something faster.
Edit: What kind of people use nmt nowadays.
_________________
Earlier known as T610 Owner.
[ This Message was edited by: speedooh on 2003-12-06 02:04 ]
[ This Message was edited by: speedooh on 2003-12-06 02:05 ]
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Posted: 2003-12-06 03:02:12
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Last thing I heard people in northern Scandinavia were still using NMT because GSM sucks up there. However, I also heard that they tried to force them on GSM for free so they could retire NMT. Having them get GSM for free is cheaper than continue maintaing the NMT system. The good old NMT - never failed or dropped, just some static.
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Posted: 2003-12-06 03:41:26
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Motorola is releasing a whole batch of quad-band phones: 850, 900, 1800, and 1900 MHz, no WCDMA, though. As far as I know, there is not much use for 850MHz band - it is only being used by Cingular and only sporadically.
I think tri-band phones wil remain a standard issue for a while now, although Samsung now has mostly dual-band phones (900 and 1900MHz). 900 still remains the principal frequency band in Europe, because the first two networks in any country are usually assigned that frequency.
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Posted: 2003-12-06 05:37:35
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