commit | 441768a82396ec14ee37fde65801b65f87051b90 | [log] [tgz] |
---|---|---|
author | Pau Espin Pedrol <pespin@sysmocom.de> | Thu Jul 27 21:42:01 2023 +0200 |
committer | Pau Espin Pedrol <pespin@sysmocom.de> | Mon Aug 21 11:19:50 2023 +0200 |
tree | 02120ca0bc10f04f999e07a6e199d9f7729173c8 | |
parent | 60664a4df16a96df2eff462aff6f085c875d7551 [diff] |
WIP: Assume MultiSlot Class 1 if unknown Until now, if timeslot resources where being allocated for an MS for which its msclass is not known, msclass=12 was being selected. While it's true that msclass=12 is quite a usual one implemented by phones (Rx=4, Rx=4, Sum=5), some MS implementations may not support such modes. As a result, if the PCU allocates a TBF for an MS which its msclass is not known (eg. because it used 1-phase access aka no Pkt Res Req), then a minimal msclass=1 must be assumed. Otherwise, it may assign more multislots than the MS can handle, and will work incorrectly since an amount of RLC/MAC blocks won't be sent/received properly. Test output changes in MslotTest.ok are expected since some allocations are accumulative, and ms_class=0 is called the first one. TbfTest.err changes happen in test_ms_merge_dl_tbf_different_trx(). Change-Id: If80fdd793db7dad029faa83dbf980ffc4959e2e5
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