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ranbaxy's Avatar
Posts: 308 | Thanked: 299 times | Joined on Jul 2012 @ Graveyard
#31
3G is Release 99 UMTS. Whereas, 3.5G is WCDMA (enhanced UMTS) with HSDPA and HSUPA enabled. There can be Node Bs (BTSs) with 3G enabled (without HSDPA/HSUPA) and in such a case, it should show 3G. If your serving Node B is HSDPA/HSUPA enabled, it should show 3.5G. and if your serving cell is not HSDPA/UPA enabled, it shouldn't show 3.5G. This is perfectly normal. ie, 3G-3.5G switch is determined by the properties/capabilities of your serving Node B.

Remember, with Release 99, you can only get downlink speeds only upto 384 kbps whereas with HSDPA enabled, you can get speeds upto 14.4 Mbps (without DC/MIMO). And yeah, this is the theory part.

My girlfriend has a Nokia 5800 in the same network as my N900 and she does not have any problem to get stable internet access in the big city. Her phone shows 3.5G constantly in the display when connected to the internet.
^^ I find it a bit weird though...
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Last edited by ranbaxy; 2012-12-28 at 11:24.