Robert Schmidt
970eb04a84
Similar to the parent commit, make the numerology in the VNF configurable. Unlike for the PNF change, the VNF frame/slot info is in a per-PNF connection structure to which the "oai_integration" code has no access. So we need to hack the nfapi_vnf_p7_add_pnf() function signature to take the numerology, to be able to save this on a per-PNF basis. The fact that we store this on a per-PNF basis is not strictly required, as the VNF cannot handle multiple numerologies as of now, either. However, we might want to extend this in the future, so it seems prudent to store this on a per-PNF basis, so that we could start handling multiple numerologies at the L2 without the need to change the L1 or nFAPI code itself. Also, the numerology is not needed except for some code that deals with timing over nFAPI. As of now, we don't use this code (nFAPI gets a trigger every slot, as per the VNF request, see an earlier commit in this series), but also here, let's not make the future more complicated by storing the numerology for each PNF now (this could always be reverted). For 4G, put numerology 0 (15kHZ SCS), which is the SCS that LTE uses.
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
- General overview of documentation
- The implemented features
- System Requirements for Using OAI Stack
- How to build
- How to run the modems
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
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