4G: OpenAirInterface instalasi

Sumber: https://hackmd.io/@ChiehChun/SkKj1oRoV/https%3A%2F%2Fhackmd.io%2F%40ChiehChun%2FrJkKmWPlH?type=book

WARNING: tidak recommended, karena akses source ke eurocom perlu account

Internet setting

 ifconfig

Set up OAI eNB and EPC

Environment/low-latency kernel set up

sudo apt-get update 
sudo apt-get install vim
sudo vim /etc/hosts (replace ubuntu to oai.openair4G.eur oai)
sudo reboot
sudo apt-get install git -y  (#install git)

git config --global user.name "Your Name"
git config --global user.email "Your email address"

cd /usr/local/src
git clone https://gitlab.eurecom.fr/oai/openairinterface5g.git
# clone the eNB/UE source code
git clone https://gitlab.eurecom.fr/oai/openair-cn.git
# clone the EPC source code

1. if the openair-cn can not clone from Gitlab, try the follow command

oai@oai:~$ git clone https://github.com/OPENAIRINTERFACE/openair-cn.git

oai@oai:~$ cd openair-cn/ oai@oai:~/openair-cn$ git checkout v0.3.2 (# swtich the branch to the one that we gonna use) oai@oai:~$ sudo apt-get install linux-lowlatency-lts-vivid -y (# Install low-lentency kernel) oai@oai:~$ sudo apt-get install cpufrequtils (# Set cpu scaling) oai@oai:~$ sudo vim /etc/default/cpufrequtils add GOVERNOR="performance" to this file oai@oai:~$ sudo update-rc.d ondemand disable oai@oai:~$ dpkg --get-selections | grep linux-image (# remove the kernel we won't used) oai@oai:~$ sudo apt-get purge linux-image-4.4.0-31-generic linux-image-extra-4.4.0-31-generic linux-image-generic-lts-xenial oai@oai:~$ sudo update-grub2

   STEP 2 : Reboot and change the kernel to low-latency

@oai:~$sudo reboot

Press esc to setting interface when reboot

Change kernel

   STEP 3 : check uname -a , you will have

   Openair-CN (EPC) installation

   STEP 1 : Build the package for HSS

oai@oai:~$ cd openair-cn/SCRIPTS/ oai@oai:~/openair-cn/SCRIPTS$ sudo ./build_hss -i (# Install the package which is needed from HSS)

   Set MySQL password to “linux”
   Choose apache
   Set phpmyadmin password to “linux”

   STEP 2 : Build the package for EPC ( including MME and SPGW )

oai@oai:~/openair-cn/SCRIPTS$ sudo ./build_epc -i (# Install the package which is needed from epc (including MME and SPGW))

   Openairinterface eNB installation

   STEP 1 : Install the package which is needed from eNB, including UHD driver

oai@oai:~/openair-cn/SCRIPTS$ cd ~/openairinterface5g/cmake_targets/ oai@oai:~/openairinterface5g/cmake_targets$ sudo ./build_oai -I --eNB -x --install-system-files -w USRP

   STEP 2 : Adapt your modification,if you do any modification related to source code

oai@oai:~/openairinterface5g/cmake_targets$ sudo ./build_oai -w USRP -x -c --eNB

   Configuration Setting for connect eNB to EPC

eNB part-

   STEP 1 : Copy the configruation files we will use for eNB

oai@oai:~/openairinterface5g/cmake_targets$ cd ~/openairinterface5g/targets/PROJECTS/GENERIC-LTE-EPC/CONF/ oai@oai:~/openairinterface5g/targets/PROJECTS/GENERIC-LTE-EPC/CONF$ cp enb.band7.tm1.50PRB.usrpb210.conf ~/ oai@oai:~/openairinterface5g/targets/PROJECTS/GENERIC-LTE-EPC/CONF$ cd oai@oai:~$ vim enb.band7.tm1.50PRB.usrpb210.conf

-> modify eNB configuration

   STEP 2 : Edit configuration
   If git brach is on v0.6.1_tdd, there do NOT have “ENB_IPv4_ADDRESS_FOR_X2C” and “ENB_PORT_FOR_X2C”. And on the branch of v0.6.1_tdd, we do not set the X2C interface. However, the git branch is on the develop/master, there would have “ENB_IPv4_ADDRESS_FOR_X2C” and “ENB_PORT_FOR_X2C” in the NETWORK_INTERFACES.
   And we need to set the X2C address as same as S1U.

       : wq to save
   STEP 3: Record your eth0 ip address

oai@oai:~$ ifconfig

EPC part- (gedit epc.cong.in)

   STEP 4 : Edit EPC configuration

   OAI config format

3. RUN OAI

   step 1 : build epc (Terminal 1)

oai@oai:~/openair-cn/BUILD/EPC$ cd ~/openair-cn/SCRIPTS/ oai@oai:~/openair-cn/SCRIPTS$ sudo ./build_epc -i oai@oai:~/openair-cn/SCRIPTS$ sudo ./build_epc -c -l

   step 2 : build hss (Terminal 2)

oai@oai:~/openair-cn/SCRIPTS$ sudo ./build_hss -c -l

   STEP 3 : run epc (Terminal 1)

oai@oai:~/openair-cn/SCRIPTS$ sudo ./run_epc -i -r

   STEP 4 : run hss (Terminal 2)

oai@oai:~/openair-cn/SCRIPTS$ sudo ./run_hss

   STEP 5 : run eNB (Terminal 3)
   Mark : Run eNB twice to succeed

oai@oai:~$ cd openairinterface5g/cmake_targets/lte_build_oai/build/ oai@oai:~/openairinterface5g/cmake_targets/lte_build_oai/build$ sudo ifconfig eth0:3 192.170.0.2 up oai@oai:~/openairinterface5g/cmake_targets/lte_build_oai/build$ sudo ifconfig eth0:4 192.170.1.2 up oai@oai:~/openairinterface5g/cmake_targets/lte_build_oai/build$ sudo ./lte-softmodem -E -O ~/enb.band7.tm1.50PRB.usrpb210.conf -d

Mark1 : Once you checkout the branch (means modify the code), you need to compile again.

oai@oai:~/openairinterface5g/cmake_targets$ sudo ./build_oai -w USRP -x -c --eNB

Mark2 : If you want to go back master from other branch, you need to send git checkout -f first and then git branch master

Mark3 : If you change the IP adress and then eNB part should:

oai@oai:~/openairinterface5g/cmake_targets/lte_build_oai/build$ sudo ifconfig eth0:3 192.170.0.2 up oai@oai:~/openairinterface5g/cmake_targets/lte_build_oai/build$ sudo ifconfig eth0:4 192.170.1.2 up oai@oai:~/openairinterface5g/cmake_targets/lte_build_oai/build$ sudo ./lte-softmodem -E -O ~/enb.band7.tm1.50PRB.usrpb210.conf -d (#run eNB)

Mark4 : CTRL+C to cease

   Connection scenario :

4. Testing results

   UE connection testing

Referensi

• https://hackmd.io/@ChiehChun/SkKj1oRoV/https%3A%2F%2Fhackmd.io%2F%40ChiehChun%2FrJkKmWPlH?type=book