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Presentation Proposal for ELCE 2010
Name of Presenter: Harald Welte <laforge@gnumonks.org>
Title: Implmementing a Free Software telephone-side GSM protocol stack
Presentation may be published: Yes
Presentation may be video-recorded + published: Yes
Brief Abstract:
Recent years have seen a remarkable increase in Free Software running on
smartphones. However, all such software is designed to run on the Application
Processor (AP) only. The actual GSM protocol stack and RF Modem drivers are
running as firmware on a completely different processor: The Baseband Processor
(BP).
OsmocomBB is a project developing the worlds first Free Software GSM protocol
stack for the mobile phone side. It includes the hardare drivers for one
particular GSM baseband processor chipset and replaces the vendor-provided
firmware on compatible chipsets/phones.
The presentation will introduce the challenges of doing this development in
the environment of the arguably most closed part of the semiconductor industry,
describe the software architecture and give a practical demonstration.
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