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Osmocom Packet control Unit (PCU): Network-side GPRS (RLC/MAC); BTS- or BSC-colocated https://osmocom.org/projects/osmopcu
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Philipp Maier 916e9d3454 pcu_l1_if_phy: add new PHY API function to initialize PHY 
The PHY implementations we currently have do not require any
initialization that has to run directly on startup. This will change
when we introduce support for the E1 based Ericsson RBS CCU. Then we
will have to perform at least one elarly initialization (VTY config
file). So lets add an API function for PHY initialization now.

Related: OS#5198
Change-Id: Ibf2a3a058c826f6ee5b740eee72d5be94d460517
 		2023-02-27 16:47:12 +01:00
contrib Bump version: 1.1.0.117-7932-dirty → 1.2.0 2023-02-07 17:10:46 +01:00
debian Bump version: 1.1.0.117-7932-dirty → 1.2.0 2023-02-07 17:10:46 +01:00
doc vty: Introduce command 'gsmtap-remote-host' and 'gsmtap-category enable-all' 2021-11-12 17:01:28 +01:00
include pcuif_proto: move gsm_pcu_if_e1_ccu_ind into right place 2023-02-07 17:28:58 +01:00
src pcu_l1_if_phy: add new PHY API function to initialize PHY 2023-02-27 16:47:12 +01:00
tests pcu_l1_if_phy: add new PHY API function to disconnect PDCH 2023-02-27 16:46:01 +01:00
.gitignore Makefile.am: generate missing .version file 2022-08-07 19:31:47 +07:00
.gitreview add .gitreview 2016-05-19 06:39:45 +00:00
COPYING import GPLv2 license text to this project 2012-07-22 22:05:44 +02:00
Makefile.am Makefile.am: add 'git-version-gen' to EXTRA_DIST 2022-08-07 19:39:03 +07:00
README.md update git URLs (git -> https; gitea) 2022-06-18 12:31:20 +02:00
TODO TODO: remove those that have obviously been implemented 5+ years ago 2020-04-17 16:02:26 +00:00
TODO-RELEASE Bump version: 0.9.0.280-56b7c-dirty → 1.0.0 2021-11-16 16:47:29 +01:00
configure.ac Bump version: 1.1.0.117-7932-dirty → 1.2.0 2023-02-07 17:10:46 +01:00
git-version-gen Add auto-foo (partial cleanup, master makefile/configure.ac 2012-06-14 21:05:44 +08:00
osmoappdesc.py Remove dash from name used in VTY cmd prompt 2019-12-02 11:14:26 +00:00

README.md

osmo-pcu - Osmocom Packet Control Unit

This repository contains a C/C++-language implementation of a GPRS Packet Control Unit, as specified by ETSI/3GPP. It is part of the Osmocom Open Source Mobile Communications project.

The Packet Control Unit is terminating the Layer 2 (RLC/MAC) of the GPRS radio interface and adapting it to the Gb Interface (BSSGP+NS Protocol) towards the SGSN.

The PCU interfaces with the physical layer of the radio interface. OsmoPCU is typically used co-located with the BTS, specifically OsmoBTS. For legacy BTSs that run proprietary sotware without an interface to OsmoPCU, you may also co-locate it with the BSC, specifically OsmoBSC

Homepage

The official homepage of the project is https://osmocom.org/projects/osmopcu/wiki/OsmoPCU

GIT Repository

You can clone from the official osmo-pcu.git repository using

git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-pcu

There is a web interface at https://gitea.osmocom.org/cellular-infrastructure/osmo-pcu

Documentation

We provide a user manual as well as a vty reference manual

Please note that a lot of the PCU configuration actually happens inside the BSC, which passes this configuration via A-bis OML to the BTS, which then in turn passes it via the PCU socket into OsmoPCU.

Mailing List

Discussions related to osmo-pcu are happening on the osmocom-net-gprs@lists.osmocom.org mailing list, please see https://lists.osmocom.org/mailman/listinfo/osmocom-net-gprs for subscription options and the list archive.

Please observe the Osmocom Mailing List Rules when posting.

Contributing

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-pcu can be seen at https://gerrit.osmocom.org/#/q/project:osmo-pcu+status:open

Current limitations

  • No PFC support
  • No fixed allocation support (was removed from 3GPP Rel >= 5 anyway)
  • No extended dynamic allocation support
  • No unacknowledged mode operation
  • Only single slot assignment on uplink direction
  • No half-duplex class support (only semi-duplex)
  • No TA loop
  • No power loop
  • Multi-BTS support not tested