Yeah , yeah , you get it : Thenew iPhoneuses AT&T ’s good - in course of instruction ( in NYC at least ) , 3 G high - hurrying connection , one that’sgetting fasterandmore spread outall the time . But there ’s a lot you in all probability did n’t sleep together about the technology involved : How tight can you really go on the affair ? Why did AT&T feel the motivation to crest the iPhone ’s speed ? If you want answers to these and other questions , you derive to the right place .
https://gizmodo.com/the-3g-iphone-is-official-july-11th-starting-at-199-5014675
Hokay , the iPhone 3Gness makes browsing a whole 2.4x quicker than bound in Apple ’s trial run . ( One thing that we ca n’t explain : Why did Apple select lonelyplanet.com for its public presentation benchmarks ? ) The 3 G goodness is literal : We ’ve been lead our own testing of AT&T ’s HSDPA in the New York area ( including suburbia ) and it really is faster and more readily uncommitted than Verizon ’s EV - DO 3 G web . ( For a ready fuzee on unlike kinds of 3 gramme like HSDPA vs. EV - DO and other mobile terms , click here . )
https://gizmodo.com/mobile-term-madness-lte-wimax-ev-do-and-more-explain-380379
But the iPhone 3 thousand is rated for1.4Mbps , a courteous clip but not the 3.6Mbps downstream that AT&T ’s HSDPA is up to of . ( The carrier loves to brag that it ’ll have 7.2Mbps by the final stage of the twelvemonth . ) So why not crank up the iPhone to those better data rates ? Turns out , according to AT&T multitude we blab out to , 1.4Mbps is the capped bandwidth for all mobile smartphones on the mesh for a few reason .
( UPDATE : AT&T is say they ’re not cap the phone at 1.4mbps , but that ’s what its up to of doing now , due to divisor below . There ’s no deviation except intent , and AT&T is careful around words like “ Cap ” these days . )
A major one is battery life - the faster you bite , the faster your barrage fire die , so going full steam at 3.6Mbps would cut you well short of thatnice round five hour . A 2d one is cell site congestion and backhaul ( carrier - speak for size of the pumped up dataline that connects cell sites to the actual telecom substructure ) . While everyone at AT&T , from thetopdown , is adamantine that AT&T is “ comfortable ” with theirability to encounter the immense data drawonce 3 G iPhones hit the streets , it ’s not like the pipe is outright .
https://gizmodo.com/can-at-ts-internet-handle-millions-of-data-hogging-3g-ip-5014537
AT&T was n’t able to give a equipment failure as to how many of their pillar have fiberoptic pipes as opposed to dim Cu T-1 lines . Nor could they say how quickly they could add content to a site that is pummeling their need expected value , since it varies from site to website . Ones in dense urban field are laden up with more backhaul and can address more drug user than one close-fitting to the edge of their 3 G footprint . Still , generally speaking , more users on a site means more over-crowding , so if you ’re slurp from a land site that ’s really thrash , it will be slower . As with all wireless technologies , propinquity also count . ( Hint : For the sheer fast speeds , wait until 3 am and then go model right next to your favorite prison cell internet site . )
Something we missed , or you still wanna know ? mail any questions about 3 G , GPS , GB - spot or anything else to[email protected ] , with “ Giz Explains ” in the open argumentation .
AppleAT&TcellphonesiPhoneiPhone 3GSmartphones
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