Jaroslava Fiedlerova 699f2e5d81 Merge remote-tracking branch 'origin/nfapi-fixes' into integration_2025_w04 (!2999)
Repair nFAPI in 5G

Add 5G nFAPI in OAI/Make it it work.

Many commits in this branch are basically bug fixes of things that don't work
properly, such as

- check for correct conditions (e.g. instance numbers in the RAN context)
- remove artificial limitation (e.g. only one PUCCH per TDD period in the PNF)
- improve performance (reduce big mallocs, make some static buffers such as a
  global ring buffer for nFAPI messages in the PNF)
- fix bugs in nFAPI (e.g., increase maximum message size to ~64kB instead of
  1500 bytes, because the latter is way too small for many TX_data.requests in
  5G, and it will delay message arrival unduly)
- fix bugs in message enc/dec (e.g., handle FDD in config.request)
- adjust the L1 such that the condition "we run monolithic" is not necessery
  (e.g., some message numbers in nFAPI struct where reset in MAC, instead of
  L1, and this breaks when running the PNF)

There are instructions that explain how to set it up. Two CI tests have been
added, one with COTS UE and MIMO in DL+UL in TDD numerology 1 (30kHz), and a
second test with FDD mu=0 (15kHZ) in RFsimulator.

These were some old to-dos that have been addressed.

- test with COTS UE - 4x4 pipeline works good in DL, UL now also work
- test in RFsim
- make PNF status message
- make FDD in u0 work
2025-01-27 15:46:19 +01:00
2025-01-03 09:40:59 +01:00
2024-12-16 16:10:36 +01:00
2024-10-11 09:12:49 +02:00
2023-08-23 17:15:48 +02:00
2024-11-22 14:46:10 +01:00
2024-10-11 09:12:49 +02:00
2024-03-08 15:53:42 +01:00
2022-10-18 15:24:48 +02:00

OAI

License Supported OS Ubuntu 20 Supported OS Ubuntu 22 Supported OS Ubuntu 24 Supported OS RELH9 Supported OS Fedora 41

GitLab Release (custom instance)

Docker Pulls Docker Pulls Docker Pulls Docker Pulls Docker Pulls

OpenAirInterface License

It is distributed under OAI Public License V1.1.

The license information is distributed under LICENSE file in the same directory.

Please see NOTICE file for third party software that is included in the sources.

Where to Start

Not all information is available in a central place, and information for specific sub-systems might be available in the corresponding sub-directories. To find all READMEs, this command might be handy:

find . -iname "readme*"

RAN repository structure

The OpenAirInterface (OAI) software is composed of the following parts:

openairinterface5g
├── charts
├── ci-scripts        : Meta-scripts used by the OSA CI process. Contains also configuration files used day-to-day by CI.
├── CMakeLists.txt    : Top-level CMakeLists.txt for building
├── cmake_targets     : Build utilities to compile (simulation, emulation and real-time platforms), and generated build files.
├── common            : Some common OAI utilities, some other tools can be found at openair2/UTILS.
├── doc               : Documentation
├── docker            : Dockerfiles to build for Ubuntu and RHEL
├── executables       : Top-level executable source files (gNB, eNB, ...)
├── maketags          : Script to generate emacs tags.
├── nfapi             : (n)FAPI code for MAC-PHY interface
├── openair1          : Layer 1 (3GPP LTE Rel-10/12 PHY, NR Rel-15 PHY)
├── openair2          : Layer 2 (3GPP LTE Rel-10 MAC/RLC/PDCP/RRC/X2AP, LTE Rel-14 M2AP, NR Rel-15+ MAC/RLC/PDCP/SDAP/RRC/X2AP/F1AP/E1AP), E2AP
├── openair3          : Layer 3 (3GPP LTE Rel-10 S1AP/GTP, NR Rel-15 NGAP/GTP)
├── openshift         : OpenShift helm charts for some deployment options of OAI
├── radio             : Drivers for various radios such as USRP, AW2S, RFsim, 7.2 FHI, ...
├── targets           : Some configuration files; only historical relevance, and might be deleted in the future
└── tools             : Tools for use by the developers/ci machines: code analysis and formatting

How to get support from the OAI Community

You can ask your question on the mailing lists.

Your email should contain below information:

  • A clear subject in your email.
  • For all the queries there should be [Query] in the subject of the email and for problems there should be [Problem].
  • In case of a problem, add a small description.
  • Do not share any photos unless you want to share a diagram.
  • OAI gNB/DU/CU/CU-CP/CU-UP configuration file in .conf format only.
  • Logs of OAI gNB/DU/CU/CU-CP/CU-UP in .log or .txt format only.
  • In case your question is related to performance, include a small description of the machine (Operating System, Kernel version, CPU, RAM and networking card) and diagram of your testing environment.
  • Known/open issues are present on GitLab, so keep checking.

Always remember a structured email will help us understand your issues quickly.

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