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Max abf53d87b6 Add MS time. offset to gsm_lchan 
Add MS TIMING OFFSET (3GPP TS 48.058 § 8.4.8) and P offset (3GPP TS
45.010 § 1.2) which can be used to compute MS TO from known TA.

This will be used by osmo-bts (see
I4dfe5c48834a083e757d5de3236a02e15a238b28) to provide MS TO as part of
RSL MEASUREMENT RESULT.

Change-Id: I8bda57c8d6c15bbb803eca708931556dae118a00
Related: OS#1574
 		2017-03-07 15:11:14 +01:00
..
contrib bsc_control.py: fix blocking 2017-01-23 12:31:45 +00:00
doc Consistenly format variables in */Makefile.am files 2016-09-15 15:55:02 +02:00
include Add MS time. offset to gsm_lchan 2017-03-07 15:11:14 +01:00
m4 Remove dependency to autoconf-archive 2017-01-31 19:54:58 +01:00
src sgsn: fix problem with leading-zero-IMSIs 2017-03-05 12:24:25 +00:00
tests vty tests: close msc socket after nat_msc_test 2017-03-05 12:24:46 +00:00
tools hlrstat: Print numeric MCC/MNC in case no name is available 2010-01-01 15:08:38 +01:00
.gitignore gitignore: gsup_test_client binary 2016-12-21 14:30:30 +01:00
AUTHORS AUTHORS: Add Jacob and Neels 2015-12-05 23:04:11 +01:00
COPYING License change: We are now AGPLv3+ instead of GPLv2+ 2011-01-01 15:39:34 +01:00
Makefile.am Attempt to fix nightly builds 2017-02-07 00:40:02 +00:00
README cosmetic: gsm_data.h, README: rename CSCN to MSC 2017-02-24 21:01:55 +01:00
README.vty-tests Add README.vty-tests 2016-01-28 13:36:07 +01:00
configure.ac Attempt to fix nightly builds 2017-02-07 00:40:02 +00:00
git-version-gen automatically include program version and print it from vty and --version 2010-03-23 00:09:32 +08:00
openbsc.pc.in Install gsm_04_08.h and required headers into a openbsc/ 2010-02-16 17:51:42 +01:00
osmoappdesc.py gtphub: Fix the VTY prompt to make the tests move forward 2015-12-14 15:24:50 +01:00

README 

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

OpenBSC started as a minimalistic all-in-one implementation of the GSM Network,
with particular emphasis on the functionality typically provided by the BSC,
MSC, HLR, VLR and SMSC.  Today it is a growing suite of libraries and programs,
implementing protocol stacks and functional elements, including

 * OsmoBSC - a pure GSM BSC, speaking Abis/IP to the BTS and A/IP to the MSC
 * OsmoBSC-MGCP - MGCP helper to the OsmoBSC software
 * OsmoNITB - a BSC+MSC+VLR+HLR+SMSC "Network in the box".
 * OsmoMSC - a voice CN with A/IP and IuCS/IP towards the BSC and/or HNB-GW
 * OsmoSGSN - a GPRS SGSN with Gb/IP and IuPS/IP towards the PCU and/or HNB-GW
 * Osmo-GbProxy - a Proxy to aggregate many Gb links as one Gb link to the SGSN
 * OsmoBSCNAT - a gateway aggregating many A links as one A link to the MSC
 * OsmoGTPHUB - a hub aggregating many GTP links (between SGSN and GGSN)
 * ipaccess-utils - some tools to discover + configure ip.access nanoBTS
 * bs11_config - a tool to configure the Siemens BS-11 microBTS

Various interfaces towards the BTS are supported, among which are:

 * Classic A-bis over E1 using a mISDN based E1 interface. In other
   words, you can connect existing GSM Base Transceiver Station (BTS)
   through E1 to OpenBSC.  So far, we have made it work with the Siemens BS-11,
   various Ericsson RBS2xxx BTS models and the Nokia MetroSite.

 * A-bis over IP as used by the ip.access nanoBTS product family as well as
   the Open Source OsmoBTS software (by the same authors as OpenBSC).  OsmoBTS
   in turn supports various transceiver hardware, including the sysmoBTS
   product family, as well as SDR transceivers supported by OsmoTRX, such as
   the UmTRX or USRP boardss.

 * IuCS and IuPS over IP towards an HNB-GW (see osmo-iuh) for UMTS (3G)
   voice and data links.

Find OpenBSC online at
http://openbsc.osmocom.org/

	Harald Welte <laforge@gnumonks.org>