Robert Schmidt
632ca15752
This branch series implements the usage of the F1 Setup Request internally at the gNB, even if CU and DU run in the same process. Until now, the F1 Setup Request contained struct fields to pass IP configuration to the F1AP module; this information is not necessary in monolithic, nor should it be relevant when passing the information in F1 Setup Request. Therefore, this commit moves all IP connection-related information out of the F1 Setup Request and into a separate structure instead. In order to give the F1AP module the necessary connection information, the DU_REGISTER_REQ message is introduced that combines the F1 Setup Request and IP configuration, such that the F1AP module can setup the SCTP connection and then send the F1 Setup Request message. In a later commit, there will be a callback for F1 Setup Request at MAC to simply register the DU at the CU. The monolithic callback will simply forward the F1 Setup Request The F1AP callback will look up the IP configuration and create DU_REGISTER_REQ message containing IP configuration and F1 Setup Request, which is then handled by the F1AP module. To this end, a separate function in gnb_config.c allows to read IP information from configuration.
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 : 3GPP LTE Rel-10/12 PHY layer / 3GPP NR Rel-15 layer. A local Readme file provides more details.
├── openair2 : 3GPP LTE Rel-10 RLC/MAC/PDCP/RRC/X2AP + LTE Rel-14 M2AP implementation. Also 3GPP NR Rel-15 RLC/MAC/PDCP/RRC/X2AP.
├── openair3 : 3GPP LTE Rel10 for S1AP, NAS GTPV1-U for both ENB and UE.
├── openshift : OpenShift helm charts for some deployment options of OAI
├── radio : Drivers for various radios such as USRP, AW2S, RFsim, ...
└── targets : Some configuration files; only historical relevance, and might be deleted in the future