Giz Explains: What AT&T’s 7.2Mbps Network Really Means

AT&T ’s contribution to theimproved overall speedof the iPhone 3GS — their upgrade 7.2Mbps net — is nearly as of import as Apple ’s . But 7.2 is just a number , and AT&T ’s net is just one of many . Here ’s where it actually stands .

https://gizmodo.com/iphone-3gs-review-5293388

First , a direct rendering : AT&T ’s kick upstairs ( or more accurately , upgrading ) 3 G web claims data download rates of 7.2 megabits per second . Though that ’s the cant used to describe bandwidth , it ’s important to remember that those are not MB . AT&T ’s impressive - sounding 7.2 megabit would move over somewhere closer to .9 megabytes ( 900 kilobytes ) per secondly , and that ’s only if you ’re getting peak execution , which you never will because …

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That 7.2Mbps is theoretical , and due to proficient budget items , web byplay , gadget fastness and overzealous merchandising , tangible world speeds are significantly lower . UPDATEDEvenlooking at the old ironware on the current 3 G internet — the networking guts in your iPhone 3 G is technically open of reaching the 3.6Mbps downstream that AT&T ’s internet is technically able of push . There are lots of reasons you do n’t ever see that . For one , it ’s limited to 1.4Mbps to bear on battery liveliness — the quicker you download , the faster you burn that assault and battery . Another is congestion — all the a - holes observe YouTubes around you — and backhaul — the amount of piping run to a tower , or more English - y still , the total bandwidth the tower has available . Another is proximity — the closer to the tower you are , the faster your phone is gon na fly . So for top speed , you should sit under a deserted tower with slew of backhaul .

https://gizmodo.com/giz-explains-what-you-didnt-know-about-the-iphones-3g-5015307

As you could see on our chart above , our tested speeds for everything fromEV - DO Rev. AtoWiMaxran at anywhere from one half to one 6th their potential speed . Accordingly , Jason find oneself AT&T ’s mesh to move at about 1.6Mbps with the iPhone 3 G S — about a third quicker than with the 3 one thousand , though he was belike still connecting at 3.6Mbps rates — the 7.2 rollout wo n’t be staring until 2011 , allot to AT&T.

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https://gizmodo.com/the-definitive-coast-to-coast-3g-data-test-5111989

AT&T - style HSDPA is expected to reach out out to an eventual theoretic upper of 14Mbps , which will undoubtedly make the current 3 G networks sense obtuse , but wo n’t of necessity fluff them out of the water . That ’s the thing : the iPhone , and indeed just about all high - end French telephone on the food market today , operate at speeds that are somewhat close to the limits of 3 G applied science . In a funny kind of way , the iPhone 3GS is already a bit out of particular date .

So what ’s next ? And what the hell are those really farseeing unripened bars up there ? Those are the so - called 4 gram ( fourth generation ) wireless technologies . Americans can brush off HSPA+ and EV - DO Rev B. for the most part , and given that they ’re the ho-hum of the next - gen bunch , should n’t experience too unfit . And anyway , as Mattexplained , WiMax and LTE are what ’s next for us .

Lesdilley

https://gizmodo.com/giz-explains-why-wimax-and-lte-wireless-4g-data-will-b-5168035

Both Verizon and AT&T are within a dyad of yr of deploying LTE in their networks , and WiMax is already out there in some metropolis . Our own WiMax testson Clearwire ’s mesh peaked at an stupefying 12Mbps — virtually eight time faster than the iPhone 3GS on AT&T. And even if WiMax is shaping up to be more of a oecumenical broadband protocol than a cellular one , this is the kind of thing that ’ll be in your phones in a few years , and the promise are thinker - boggling : earlier this yr , Verizon ’s LTE werebreaking 60Mbps .

https://gizmodo.com/verizon-lte-wireless-clocking-60mbps-in-us-tests-confi-5155882

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