commit | 0cde91de1f30a4e5b4f549ac780e3e932c668bd5 | [log] [tgz] |
---|---|---|
author | Philipp Maier <pmaier@sysmocom.de> | Fri Jun 30 16:27:06 2023 +0200 |
committer | laforge <laforge@osmocom.org> | Tue Jul 18 07:07:59 2023 +0000 |
tree | d4dc056d91c951812e3e0c0fa0a89b1991015abb | |
parent | b8f79e85cb514d9dedc15ff2d75fc5f335a0902d [diff] |
nacc_fsm: Add support for NACC with UTRAN and E-UTRAN cells The NACC procedure in OsmoPCU currently only supports NACC with GERAN cells. When an UTRAN or E-UTRAN cell is proposed in the PacketCellChangeNotification, then the FSM is immediately terminated, meaning that the NACC procedure can not commence. When the NACC procedure is carried out for UTRAN or E-UTRAN cells, the PCU will not send any system information to the UE. Instead it immediately sends a PacketCellChangeContinue message. This also means that we do not carry out any RAN Information Requests in the background. This patch adds logic to detect if the proprosed cell is an UTRAN or E-UTRAN cell and the adds a new transition to the FSM so that a short route to NACC_ST_TX_CELL_CHG_CONTINUE can be taken. Related: OS#6044 Change-Id: I96280f0ec5955ed3cb17641bf4118496c929bdac
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
The official homepage of the project is https://osmocom.org/projects/osmopcu/wiki/OsmoPCU
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
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.
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.
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