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What does "baseband" mean on a mobile phone?

What does "baseband" mean in the context of mobile phones?

Most Useful Answer jammybudga  Aug. 25, 2012 at 11:23

okay ive just been readin what it says about the baseband and how it basically is the antena and gets signal for internet phone calls exc . so if this is the case why have i read in loads of places about changing the iphone baseband to an ipad 2 baseband? surely u wud b loosing out on phones calls and txts?? does anyone have a sensible answer plz maybe ive just been reading it wrong ( lol )

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JanSt / MOD  Feb. 8, 2012 at 12:21

A phone's baseband is basically the software of the built-in cellular modem as opposed to the rest of the operating system.
(that is very simplied ;) )

The Salon has a more indepth article explaing the iPhone's baseband (the iPhone made the term known to the wider public due to related jailbreak and unlock issues)

http://techtips.salon.com/iphone-baseband-3699.html

Quote: "Smartphones like the Apple iPhone act like both ordinary cell phones and computers within the same device. You can make calls and you can also surf the Internet. This is because the iPhone essentially has two processors; the operating system (or OS) that processes Internet and mobile functions and the baseband that operates as a cell phone's antenna would.
Essential Functions

The iPhone's baseband manages functions that would ordinarily require an antenna. This includes receiving and placing phone calls and picking up the signal from cell phone towers. The baseband also operates the Wi-Fi and Bluetooth capabilities of the iPhone."

jammybudga  Aug. 25, 2012 at 11:23

okay ive just been readin what it says about the baseband and how it basically is the antena and gets signal for internet phone calls exc . so if this is the case why have i read in loads of places about changing the iphone baseband to an ipad 2 baseband? surely u wud b loosing out on phones calls and txts?? does anyone have a sensible answer plz maybe ive just been reading it wrong ( lol )

AhmadCentral  Aug. 25, 2012 at 23:47

I think its because the new iPad supports faster internet speeds. So people are saying they would like to see those faster download speeds on the new iPhone. I guess.

But yeh, baseband is basically the radio for signal/data for the phone

CTPAHHIK  Aug. 27, 2012 at 14:48

Baseband is low level engine code responsible for converting radio signals into something main CPU can understand.
Baseband would be very similar to all phones - essentially there are only so many ways you can make a phone call or transfer data. It won't be any different between iPhone or iPad (minus any updates) in same way as Windows has support for wireless card, even if computer does not come with one. It's much easier to have same code base between all devices, then to rip out unneeded functionality.

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