README.md

OpenAirInterface documentation overview

• General
• Tutorials
• Designs
• Building and running from images
• Libraries
  • General
  • SDRs
  • Special-purpose libraries
• Testing

General

• FEATURE_SET.md: lists supported features
• GET_SOURCES.md: how to download the sources
• BUILD.md: how to build the sources
• cross-compile.md: how to cross-compile OAI for ARM
• clang-format.md: how to format the code
• environment-variables.md: the environment variables used by OAI

There is some general information in the OpenAirInterface Gitlab Wiki

Tutorials

• Step-by-step tutorials to set up 5G:
  • OAI 5GC
  • OAI gNB with COTS UE
  • OAI NR-UE
• RUNMODEM.md: Generic information on how to
  • Run simulators
  • Run with hardware
  • Specific OAI modes (phy-test, do-ra, noS1)
  • (5G) Using SDAP and custom DRBs
  • IF setups and arbitrary frequencies
  • MIMO
• How to run a 5G-NSA setup
• How to run a 4G setup using L1 simulator Note: we recommend the RFsimulator
• How to use the L2 simulator
• How to use multiple BWPs
• How to run OAI-VNF and OAI-PNF Note: does not work currently
• How to use the positioning reference signal (PRS)
• How to use device-to-device communication (D2D, 4G)
• How to run with E2 agent

Legacy unmaintained files:

• L2NFAPI_NOS1.md, L2NFAPI_S1.md: old L2simulator, not valid anymore
• SystemX-tutorial-design.md
• UL_MIMO.txt

Designs

• General software architecture notes: SW_archi.md
• Information on E1
• Information on F1
• Information on how NR nFAPI works
• Flow graph of the L1 in gNB
• L1 threads in NR-UE

Legacy unmaintained files:

• 5Gnas.md

Building and running from images

• How to build images
• How to run 5G with the RFsimulator from images
• How to run 4G with the RFsimulator from images
• How to run 5G with the L2simulator from images
• How to run images in OpenShift

Libraries

General

• The T tracer: a generic tracing tool (VCD, Wireshark, GUI, to save for later, ...)
• OPT: how to trace to wireshark
• The configuration module
• The logging module
• The shared object loader
• The threadpool used in L1
• The LDPC implementation is a shared library

SDRs

Some directories under radio contain READMEs:

• RFsimulator
• USRP
• BladeRF
• IQPlayer, and general documentation

The other SDRs (AW2S, LimeSDR, ...) have no READMEs.

Special-purpose libraries

• OAI has two scopes, one based on Xforms, one on Qt5, described in this README
• OAI comes with an integrated telnet server to monitor and control
• OAI comes with an integrated web server

Testing

• UnitTests.md explains the unit testing setup
• TESTBenches.md lists the CI setup and links to pipelines