README.md

1. Operating System: Ubuntu 20.04.5 LTS
3. CPU: 8 cores x86_64 @ 3.5 GHz
2. RAM: 32 GB
1. CPU: 4 cores x86_64
2. RAM: 8 GB
Important: The following steps can be executed by the file oai_5g_core_install.sh
In this task you will install and configure the core in its basic architecture according to the image below:
Step 1: Install dependencies
    sudo apt-get install ca-certificates
    sudo apt-get install curl
    sudo apt-get install gnupg
    sudo apt-get install lsb-release

Step 2: Enable packet forwarding
    sudo sysctl net.ipv4.conf.all.forwarding=1
    sudo iptables -P FORWARD ACCEPT

Step 3: Install docker and docker-compose
    sudo rm /etc/apt/sources.list.d/docker.list*
    sudo mkdir -p /etc/apt/keyrings
    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
    sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(. /etc/os-release; echo "$UBUNTU_CODENAME") stable"
    sudo chmod a+r /etc/apt/keyrings/docker.gpg
    sudo apt-get update
    sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin
    sudo curl -L https://github.com/docker/compose/releases/download/1.29.2/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
    sudo chmod +x /usr/local/bin/docker-compose

Step 4: Pull the images from Docker Hub
    sudo docker pull oaisoftwarealliance/oai-amf:v1.5.0
    sudo docker pull oaisoftwarealliance/oai-nrf:v1.5.0
    sudo docker pull oaisoftwarealliance/oai-smf:v1.5.0
    sudo docker pull oaisoftwarealliance/oai-udr:v1.5.0
    sudo docker pull oaisoftwarealliance/oai-udm:v1.5.0
    sudo docker pull oaisoftwarealliance/oai-ausf:v1.5.0
    sudo docker pull oaisoftwarealliance/oai-spgwu-tiny:v1.5.0
    sudo docker pull oaisoftwarealliance/trf-gen-cn5g:latest

Step 5: Tag Docker Images
    sudo docker image tag oaisoftwarealliance/trf-gen-cn5g:latest trf-gen-cn5g:latest
    sudo docker image tag oaisoftwarealliance/oai-amf:v1.5.0 oai-amf:v1.5.0
    sudo docker image tag oaisoftwarealliance/oai-nrf:v1.5.0 oai-nrf:v1.5.0
    sudo docker image tag oaisoftwarealliance/oai-smf:v1.5.0 oai-smf:v1.5.0
    sudo docker image tag oaisoftwarealliance/oai-udr:v1.5.0 oai-udr:v1.5.0
    sudo docker image tag oaisoftwarealliance/oai-udm:v1.5.0 oai-udm:v1.5.0
    sudo docker image tag oaisoftwarealliance/oai-ausf:v1.5.0 oai-ausf:v1.5.0
    sudo docker image tag oaisoftwarealliance/oai-spgwu-tiny:v1.5.0 oai-spgwu-tiny:v1.5.0

Step 6: Clone OpenAirInterface 5G Core repository
    git clone https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-fed.git
    cd oai-cn5g-fed
    git checkout -f v1.5.0
In this task you will install and configure the gNB of the OAI.

Step 1: Install dependencies
    sudo add-apt-repository ppa:ettusresearch/uhd
    sudo apt-get install libuhd-dev uhd-host -y
    sudo apt-get install libuhd4.2.0 -y
    sudo apt-get install libuhd4.4.0 -y

Step 2: Fix problem in the libuhd
    sudo dpkg -i --force-overwrite /var/cache/apt/archives/libuhd4.2.0_4.2.0.1-0ubuntu1~focal1_amd64.deb
    sudo dpkg -i --force-overwrite /var/cache/apt/archives/libuhd4.4.0_4.4.0.0-0ubuntu1~focal1_amd64.deb

Step 3: Clone OpenAirInterface 5G RAN and UE repository
    git clone https://gitlab.eurecom.fr/oai/openairinterface5g.git
    cd PATH_TO/openairinterface5g
    git checkout develop

Step 4: Run the installation script
    source oaienv
    cd cmake_targets
    sudo ./build_oai -I -w USRP -i
    sudo ./build_oai --gNB --nrUE -w USRP