http://english.martinvarsavsky.net/general/even-att-advises-you-to-use-wifi.html Blog of an entrepreneur Mon, 13 Feb 2012 19:31:49 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://english.martinvarsavsky.net/general/even-att-advises-you-to-use-wifi.html#comment-127015 FON:technology - technical limitations of 3G Sun, 27 Apr 2008 10:52:30 +0000 http://english.martinvarsavsky.net/general/even-att-advises-you-to-use-wifi.html#comment-127015 [...] für “FemtoCells”: “Posted by *Paul RODTS* - April 19, 2008 10:47 pm - # english.martinvarsavsky.net If telecoms want 3G to work with acceptable speeds, they will need in a city area, about each 400 [...] [...] für “FemtoCells”: “Posted by *Paul RODTS* – April 19, 2008 10:47 pm – # english.martinvarsavsky.net If telecoms want 3G to work with acceptable speeds, they will need in a city area, about each 400 [...]

]]> http://english.martinvarsavsky.net/general/even-att-advises-you-to-use-wifi.html#comment-125841 Paul RODTS Sat, 19 Apr 2008 20:47:30 +0000 http://english.martinvarsavsky.net/general/even-att-advises-you-to-use-wifi.html#comment-125841 If telecoms want 3G to work with acceptable speeds, they will need in a city area, about each 400 to 500 meters, 3G antennas (except if not many users are connected to the base station, the serving cells will be a bit bigger). There are many drop-out problems while sending large data files via networks at 1.800 or 1.900 Mhz. The use of a lower frequency ( 600 or 700 Mhz ) is a more realistic approach for sending data, in this case they need an antenna every 1 to 1,2 km. A roll out for a good and always fast working network at high speeds with Umts/Egde/Gprs/Hsdpa is unrealistic due to the ‘not in my backyard’ syndrome. 3G and Wlan technologies must cooperate. 3G is only fine if the antenna is very close to you...Also most telecoms don't have enough capacity on their network if everybody starts downloading via 3G ! (Trust me, I am an expert in this field..) ;-) If telecoms want 3G to work with acceptable speeds, they will need in a city area, about each 400 to 500 meters, 3G antennas (except if not many users are connected to the base station, the serving cells will be a bit bigger). There are many drop-out problems while sending large data files via networks at 1.800 or 1.900 Mhz. The use of a lower frequency ( 600 or 700 Mhz ) is a more realistic approach for sending data, in this case they need an antenna every 1 to 1,2 km. A roll out for a good and always fast working network at high speeds with Umts/Egde/Gprs/Hsdpa is unrealistic due to the ‘not in my backyard’ syndrome. 3G and Wlan technologies must cooperate. 3G is only fine if the antenna is very close to you…Also most telecoms don’t have enough capacity on their network if everybody starts downloading via 3G !
(Trust me, I am an expert in this field..)

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