OsmocomBB is not the way, what they have is a patchset over closed source GSM firmware, they merely patch DSP firmware on the baseband to bend it a little. but

OsmocomBB is not the way, what they have is a patchset over closed source GSM firmware, they merely patch DSP firmware on the baseband to bend it a little. but we already have open source GSM/LTE implementations, everything is ready from the hardware (various SDRs), thru baseband openbts, to whole network controllers like openbsc