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Osmocom's Base Station Controller for 2G mobile networks https://osmocom.org/projects/osmobsc
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Harald Welte f55b49fef3 To slow down transmission of many ABIS frames at a time, a delay timer 
is used for the E1's time slot. This timer replaces the "usleep()"
function, so the process will not block the execution of libbsc. The
timer is started after a frame is transmitted. If another frame is in
the transmit queue, the frame will only be queued until the timer times
out. If the timer is not running or times out, the frame is transmitted
and the timer is restarted.

The problem with partly provisioned TRX (locks show on LMT) is solved.
The adjustment for the inter frame delay of 50 miliseconds is for
further study.
(Andreas Eversberg)
 		2009-05-23 06:20:41 +00:00
doc add bits and pieces of documentation 2009-02-17 02:02:14 +00:00
include To slow down transmission of many ABIS frames at a time, a delay timer 2009-05-23 06:20:41 +00:00
src To slow down transmission of many ABIS frames at a time, a delay timer 2009-05-23 06:20:41 +00:00
tests An application that has own events and file descriptors, must poll 2009-05-23 06:07:04 +00:00
tools add small statistics script for HLR database 2008-12-29 05:35:02 +00:00
AUTHORS AUTHORS: Add Jan Luebbe 2008-12-29 06:06:25 +00:00
COPYING Add GPLv2 or later 2008-12-29 04:50:25 +00:00
Makefile.am Introduce a simple timer API.... 2008-12-27 09:42:59 +00:00
README add README 2008-12-29 04:50:01 +00:00
configure.in [misc] Make distcheck work again 2009-03-11 03:29:43 +00:00

README 

About OpenBSC
=============

OpenBSC is a minimalistic implementation of the GSM Network, with particular
emphasis on the functionality typically provided by the BSC, MSC, HLR, VLR.

Its only current interface is a mISDN based E1 interface utilizing the A-bis
protocol between BSC and BTS.  In other words, you can connect an existing
GSM Base Transceiver Station (BTS) through E1 to OpenBSC.

So far, it has only been tested with the Siemens microBTS BS-11.  Test reports
with other BTS are appreciated!

This project is still in its early days, and there are lots of areas where it
doesn't behave as per GSM spec.

December 29, 2008
	Harald Welte <laforge@gnumonks.org>