| commit | bd461e62b55e96cd69ca0f5cd9f448e44a8efeab | [log] [tgz] |
|---|---|---|
| author | Pau Espin Pedrol <pespin@sysmocom.de> | Wed May 31 20:26:25 2023 +0200 |
| committer | Pau Espin Pedrol <pespin@sysmocom.de> | Fri Jun 02 14:36:57 2023 +0200 |
| tree | 03ef6d6eb0b7fea6b88fae336040a58d2ee338d5 | |
| parent | 636d7fdb72c0c6674699c8520f7c6132d86b03bf [diff] |
encoding: pass RFN to write_immediate_assignment(_reject)() Those function don't really require the full FN, hence let's pass only the required information. This makes the implementation here less dependent on how/if we are able to calculate full FNs based on RFN: We get an RFN, and we have to encode so that the RFN can be derived again, so feels less cumbersome having to go through RFN->FN->RFN which may only cause possible issues if there's some FN timing bug. 3GPP TS 44.018 10.5.2.30 Request Reference: "The purpose of the Request Reference information element is to provide the random access information used in the channel request and the frame number, FN modulo 42432" 3GPP TS 44.018 10.5.2.38 Starting Time: "The purpose of the Starting Time information element is to provide the start TDMA frame number, FN modulo 42432." Change-Id: If9b758434c00f2a3868534d5be84946809c989a9
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