David Chin Online
Yet another personal blog

What A Baseband Processor Is

2009-08-03 01:09:45 | Categorized Categorized | Tagged Baseband

Daniel Eran Dilger:

Smartphones are essentially a general purpose computer (usually an ARM-based CPU) connected to a cellular radio (controlled by the baseband processor) via an interface that uses basic AT-style commands to place calls and transmit data, much like an old Hayes modem if you are old enough to remember that sort of thing. Vendors are free to do pretty much anything on the computer side of the device, just as anyone can release a Linux PC. On the baseband side however, the phone can’t be “open,” by law.

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