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osmo-bsc - Osmocom BSC Implementation
This repository contains a C-language implementation of a GSM Base Station Controller (BSC). IT is part of the Osmocom Open Source Mobile Communications project.
- A over IP towards an MSC (e.g. OsmoMSC): 3GPP AoIP or SCCPlite
- Abis interfaces towards various kinds of BTS (osmo-bts, sysmobts, nanoBTS, Siemens, Nokia, Ericsson)
- The Osmocom typical telnet VTY and CTRL interfaces.
- The Osmocom typical statsd exporter.
- Cell Broadcast Service Protocol (CBSP) towards a CBC (Cell Broadcast Centre, such as osmo-cbc).
- Lb interface towards a SMLC (Serving Mobile Location Centre, such as osmo-smlc).
You can clone from the official osmo-bsc.git repository using
git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-bsc
There is a web interface at https://gitea.osmocom.org/cellular-infrastructure/osmo-bsc
User Manuals and VTY reference manuals are [optionally] built in PDF form as part of the build process.
Discussions related to osmo-bsc are happening on the email@example.com mailing list, please see https://lists.osmocom.org/mailman/listinfo/openbsc for subscription options and the list archive.
Please observe the Osmocom Mailing List Rules when posting.
Our coding standards are described at https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards
We us a gerrit based patch submission/review process for managing contributions. Please see https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit for more details
The current patch queue for osmo-bsc can be seen at https://gerrit.osmocom.org/#/q/project:osmo-bsc+status:open
OsmoBSC originated from the OpenBSC project, which started as a minimalistic all-in-one implementation of the GSM Network. In 2017, OpenBSC had reached maturity and diversity (including M3UA SIGTRAN and 3G support in the form of IuCS and IuPS interfaces) that naturally lead to a separation of the all-in-one approach to fully independent separate programs as in typical GSM networks.
OsmoBSC was one of the parts split off from the old openbsc.git. Before, it worked as a standalone osmo-bsc binary as well as a combination of libbsc and libmsc, i.e. the old OsmoNITB. Since the standalone OsmoMSC with a true A interface (and IuCS for 3G support) is available, OsmoBSC exists only as a separate standalone entity.
OsmoBSC-NAT is a specialized solution to navigating RTP streams through a NAT. (Todo: describe in more detail)