Difference between revisions of "4G: OpenAirInterface dari OpenCell"

From OnnoWiki
Jump to navigation Jump to search
 
(11 intermediate revisions by the same user not shown)
Line 9: Line 9:
  
 
  sudo apt install git
 
  sudo apt install git
−
git config --global user.name "Onno"
+
 
−
git config --global user.email "onno@indo.net.id"
 
  
 
Sebagai user biasa, download config mods dari opencells
 
Sebagai user biasa, download config mods dari opencells
Line 47: Line 46:
 
  ./build_hss -i
 
  ./build_hss -i
  
−
Answer yes to install: freeDiameter 1.2.0
+
Do you want to install freeDiameter 1.2.0: yes
−
phpmyadmin:
+
 
−
We don’t use phpmyadmin later in this procedure to update the MySQL database
+
Jika ada kesalahan, coba
−
We removed the installation of phpmyadmin (of course you can use it if you prefer)
 
−
For ubuntu 18.04, we set back the legacy mysql security level
 
  
−
  sudo mysql -u root << END
+
sudo apt --fix-broken install
 +
cd ~/openair-cn
 +
source oaienv
 +
cd scripts
 +
./build_hss -i
 +
 
 +
Untuk ubuntu 18.04, set back legacy mysql security level
 +
 
 +
  sudo mysql -u root
 
  USE mysql;
 
  USE mysql;
 
  UPDATE user SET plugin='mysql_native_password' WHERE User='root';
 
  UPDATE user SET plugin='mysql_native_password' WHERE User='root';
 
  FLUSH PRIVILEGES;
 
  FLUSH PRIVILEGES;
−
  END
+
  quit
  
 
  sudo systemctl restart mysql.service
 
  sudo systemctl restart mysql.service
  
−
sudo mysql_secure_installation
+
Default username root, password "kosong"
−
The last command will ask a few questions:
 
  
−
password: set your password (linux is set in our default config files)
+
Install 3PP SW untuk mme dan spgw
−
VALIDATE PASSWORD PLUGIN: no
 
−
Remove anonymous users: yes
 
−
Disallow root login remotely: yes
 
−
Remove test database and access to it: yes
 
−
Reload privilege tables now: yes
 
−
Install 3PP SW for mme and spgw
 
  
 +
sudo apt fix-broken install
 +
cd ~/openair-cn
 +
source oaienv
 +
cd scripts
 
  ./build_mme -i
 
  ./build_mme -i
−
  Do you want to install freeDiameter 1.2.0: no
+
 
 +
  Do you want to install freeDiameter 1.2.0 <y/N>: yes
 
  Do you want to install asn1c rev 1516 patched? <y/N>: yes
 
  Do you want to install asn1c rev 1516 patched? <y/N>: yes
 
  Do you want to install libgtpnl ? <y/N>: yes
 
  Do you want to install libgtpnl ? <y/N>: yes
 
  wireshark permissions: as you prefer
 
  wireshark permissions: as you prefer
 +
 +
 +
cd ~/openair-cn
 +
source oaienv
 +
cd scripts
 
  ./build_spgw -i
 
  ./build_spgw -i
 
  Do you want to install libgtpnl ? <y/N>: no
 
  Do you want to install libgtpnl ? <y/N>: no
  
−
Compile the EPC nodes
+
==Compile the EPC nodes==
−
No difficulty found in this phase.
 
  
−
  cd openair-cn; source oaienv; cd scripts
+
Kalau gagal di ulang lagi saja.
 +
 
 +
  cd ~/openair-cn
 +
source oaienv
 +
cd scripts
 
  ./build_hss
 
  ./build_hss
 
  ./build_mme
 
  ./build_mme
 
  ./build_spgw
 
  ./build_spgw
  
−
If you face compilation issues, the log files are in openair-cn/build/log
+
Jika ada masalah compile, cek string "error:" di,
 +
 
 +
openair-cn/build/log
  
−
In there files, look for “error:” string.
+
==Download & Compile the eNB on 18.04==
 +
 
 +
cd ~
 +
git config --global user.name "Onno"
 +
git config --global user.email "onno@indo.net.id"
 +
git clone https://gitlab.eurecom.fr/oai/openairinterface5g.git
 +
cd ~/openairinterface5g
 +
git checkout develop
  
−
Download & Compile the eNB on 18.04
 
−
git clone https://gitlab.eurecom.fr/oai/openairinterface5g.git
 
−
cd openairinterface5g
 
−
git checkout develop
 
 
We tested with commit edb74831dabf79686eb5a92fbf8fc06e6b267d35
 
We tested with commit edb74831dabf79686eb5a92fbf8fc06e6b267d35
 
Build in two steps
 
Build in two steps
−
source oaienv   
+
 
−
./cmake_targets/build_oai -I  # install SW packages from internet
+
sudo apt -y install libuhd-dev libuhd003 uhd-host
−
./cmake_targets/build_oai -w USRP --eNB --UE # compile eNB and UE
+
source oaienv   
−
Our Network setup description
+
./cmake_targets/build_oai -I  # install SW packages from internet
 +
./cmake_targets/build_oai -I
 +
 
 +
./cmake_targets/build_oai -I -w USRP --eNB
 +
./cmake_targets/build_oai -I -w USRP --eNB --UE # compile eNB and UE
 +
 
 +
./cmake_targets/build_oai -I --eNB -x --install-system-files -w USRP
 +
./cmake_targets/build_oai -I --eNB -x --install-system-files -w EXMIMO
 +
./cmake_targets/build_oai -I --eNB -x --install-system-files -w BLADERF
 +
 
 +
==Our Network setup description==
 +
 
 
I’ve made a simple configuration for this all-in-one setup.
 
I’ve made a simple configuration for this all-in-one setup.
  
 
Each node is on a separate IP address, this address is used for all it’s interfaces. In our case of all-in-one, we take addresses on the loopback: this will be fine on all your machines.
 
Each node is on a separate IP address, this address is used for all it’s interfaces. In our case of all-in-one, we take addresses on the loopback: this will be fine on all your machines.
  
−
HSS is on localhost: 127.0.0.1
+
HSS is on localhost: 127.0.0.1
−
eNB is on 127.0.0.10
+
eNB is on 127.0.0.10
−
MME is on 127.0.0.20
+
MME is on 127.0.0.20
−
SPGW is on 127.0.0.30
+
SPGW is on 127.0.0.30
 +
 
 
The LTE diameter configuration is now isolated from Linux hostname.
 
The LTE diameter configuration is now isolated from Linux hostname.
  
−
realm for our EPC: “OpenAir5G.Alliance”, so, full distinguish names (FQDN) are: hss.OpenAir5G.Alliance, mme.OpenAir5G.Alliance
+
realm for our EPC: “OpenAir5G.Alliance”, so, full distinguish names (FQDN) are:
 +
hss.OpenAir5G.Alliance,
 +
mme.OpenAir5G.Alliance
 +
 
 +
==Install this configuration for eNB==
  
−
Install this configuration for eNB
 
 
In your eNB configuration file, the network is now fixed, as lo interface always exists and our computer internal addresses also:
 
In your eNB configuration file, the network is now fixed, as lo interface always exists and our computer internal addresses also:
  
−
////////// MME parameters:
+
  ////////// MME parameters:
−
mme_ip_address = ( { ipv4 = "127.0.0.20";
+
  mme_ip_address = ( { ipv4 = "127.0.0.20";
−
ipv6 = "192:168:30::17";
+
  ipv6 = "192:168:30::17";
−
active = "yes";
+
  active = "yes";
−
preference = "ipv4";
+
  preference = "ipv4";
−
  }
+
  }
−
  );
+
  );
 +
 +
  NETWORK_INTERFACES :
 +
  {
 +
  ENB_INTERFACE_NAME_FOR_S1_MME = "lo";
 +
  ENB_IPV4_ADDRESS_FOR_S1_MME = "127.0.0.10/8";
 +
   
 +
  ENB_INTERFACE_NAME_FOR_S1U = "lo";
 +
  ENB_IPV4_ADDRESS_FOR_S1U = "127.0.0.10/8";
 +
  ENB_PORT_FOR_S1U = 2152; # Spec 2152
 +
  };
  
−
NETWORK_INTERFACES :
 
−
{
 
−
ENB_INTERFACE_NAME_FOR_S1_MME = "lo";
 
−
ENB_IPV4_ADDRESS_FOR_S1_MME = "127.0.0.10/8";
 
−
 
−
ENB_INTERFACE_NAME_FOR_S1U = "lo";
 
−
ENB_IPV4_ADDRESS_FOR_S1U = "127.0.0.10/8";
 
−
ENB_PORT_FOR_S1U = 2152; # Spec 2152
 
−
};
 
 
In the eNB config file, you need also to set the MCC and MNC as per your SIM card:
 
In the eNB config file, you need also to set the MCC and MNC as per your SIM card:
  
−
tracking_area_code = “1”;
+
tracking_area_code = “1”;
−
mobile_country_code = “208”;
+
mobile_country_code = “208”;
−
mobile_network_code = “92”;
+
mobile_network_code = “92”;
  
 
And obviously, your radio parameters.
 
And obviously, your radio parameters.
  
−
Wwe tested with USRP B210 20MHz band, Huawei E3272 UE, a cavity duplexer a simple antenna, about 1 meter distance UE/eNB antenna with this file: ~/opencells-mods/enb.10MHz.b200
+
Wwe tested with USRP B210 20MHz band, Huawei E3272 UE, a cavity duplexer a simple antenna, about 1 meter distance UE/eNB antenna with this file:  
 +
 
 +
~/opencells-mods/enb.10MHz.b200
  
 
if you use the OpenAir UE, a sim card file that match our hss database example: opencells-mods/sim.conf. We will make another tutorial to use together OpenAir UE and rf board simulation
 
if you use the OpenAir UE, a sim card file that match our hss database example: opencells-mods/sim.conf. We will make another tutorial to use together OpenAir UE and rf board simulation
Line 149: Line 183:
 
For the EPC, we install in OAI default directory: /usr/local/etc/oai
 
For the EPC, we install in OAI default directory: /usr/local/etc/oai
  
−
sudo mkdir -p /usr/local/etc/oai
+
sudo mkdir -p /usr/local/etc/oai
−
sudo cp -rp ~/opencells-mods/config_epc/* /usr/local/etc/oai
+
sudo cp -rp ~/opencells-mods/config_epc/* /usr/local/etc/oai
−
cd openair-cn; source oaienv; cd scripts
+
cd openair-cn; source oaienv; cd scripts
−
./check_hss_s6a_certificate /usr/local/etc/oai/freeDiameter hss.OpenAir5G.Alliance
+
./check_hss_s6a_certificate /usr/local/etc/oai/freeDiameter hss.OpenAir5G.Alliance
−
./check_mme_s6a_certificate /usr/local/etc/oai/freeDiameter mme.OpenAir5G.Alliance
+
./check_mme_s6a_certificate /usr/local/etc/oai/freeDiameter mme.OpenAir5G.Alliance
 +
 
 
Only the SGi output to internet need to be configured.
 
Only the SGi output to internet need to be configured.
 +
 
In /usr/local/etc/oai/spgw.conf,
 
In /usr/local/etc/oai/spgw.conf,
 
your should set the Ethernet interface that is connected to Internet, and,
 
your should set the Ethernet interface that is connected to Internet, and,
Line 161: Line 197:
 
  PGW_INTERFACE_NAME_FOR_SGI = "enp3s0";  
 
  PGW_INTERFACE_NAME_FOR_SGI = "enp3s0";  
 
  PGW_MASQUERADE_SGI = "yes";
 
  PGW_MASQUERADE_SGI = "yes";
−
For the SIM card, you’ll have more to do:
 
  
−
SIM MCC/MNC should be duplicated in a couple of files
+
For the SIM card, you’ll have more to do: 
−
eNB: See above in eNB configuration chapter
+
 
−
MME file: /usr/local/etc/oai/mme.conf to update
+
* SIM MCC/MNC should be duplicated in a couple of files
−
GUMMEI_LIST = ( MCC="208" ; MNC="92"; MME_GID="4" ; MME_CODE="1"; } );
+
* eNB: See above in eNB configuration chapter
−
TAI_LIST = ({MCC="208" ; MNC="92"; TAC = "1"; } );
+
* MME file: /usr/local/etc/oai/mme.conf to update
−
HSS
+
GUMMEI_LIST = ( MCC="208" ; MNC="92"; MME_GID="4" ; MME_CODE="1"; } );
 +
TAI_LIST = ({MCC="208" ; MNC="92"; TAC = "1"; } );
 +
HSS
 +
 
 
Configure the password for MySQL
 
Configure the password for MySQL
 
in /usr/local/etc/oai/hss.conf, set password as the password you created during MySQL installation
 
in /usr/local/etc/oai/hss.conf, set password as the password you created during MySQL installation
Line 174: Line 212:
 
We don’t use phpmyadmin: we load the database from a ascii file
 
We don’t use phpmyadmin: we load the database from a ascii file
 
It is pre-configured with the
 
It is pre-configured with the
−
mme id
+
 
 +
mme id
 +
 
 
10 users is network 208/92 (a French test network) are also created (don’t use 3GPP test network: 001/01: the mme fails when MCC starts by “0”)
 
10 users is network 208/92 (a French test network) are also created (don’t use 3GPP test network: 001/01: the mme fails when MCC starts by “0”)
 +
 
Each time you import this db, it erases the entire database
 
Each time you import this db, it erases the entire database
 
(example: you set mysql password to “linux”)
 
(example: you set mysql password to “linux”)
Line 183: Line 224:
 
but, if you prefer, usage of http://localhost/phpmyadmin is fine.
 
but, if you prefer, usage of http://localhost/phpmyadmin is fine.
 
if you modified the hss db directly, we offer a export script:
 
if you modified the hss db directly, we offer a export script:
−
~/opencells-mods/hss_export
+
 
 +
~/opencells-mods/hss_export
 +
 
 
The important values to set are:
 
The important values to set are:
−
table pdn:
+
* table pdn:
 
all IMSI are listed, with the APN: these values are in UE/USIM
 
all IMSI are listed, with the APN: these values are in UE/USIM
−
table users:
+
* table users:
 
all IMSI, key (Ki) and OPc must be the same in USIM card
 
all IMSI, key (Ki) and OPc must be the same in USIM card
 
Sqn increments automatically  when the UE authenticate in both USIM and HSS DB: it should be set as per USIM internal incrementation
 
Sqn increments automatically  when the UE authenticate in both USIM and HSS DB: it should be set as per USIM internal incrementation
 +
 
SIM card update
 
SIM card update
 
Open cells UICC and card reader will  be supported
 
Open cells UICC and card reader will  be supported
Line 196: Line 240:
  
 
in each window
 
in each window
−
cd openair-cn; source oaienv; cd scripts; ./run_hss
+
 
−
cd openair-cn; source oaienv; cd scripts; ./run_mme
+
cd openair-cn; source oaienv; cd scripts; ./run_hss
−
cd openair-cn; source oaienv; cd scripts; sudo -E ./run_spgw
+
cd openair-cn; source oaienv; cd scripts; ./run_mme
−
sudo bash
+
cd openair-cn; source oaienv; cd scripts; sudo -E ./run_spgw
−
cd ~/openairinterface5g; source oaienv
+
sudo bash
−
cd cmake_targets/lte_build_oai/build
+
cd ~/openairinterface5g; source oaienv
 +
cd cmake_targets/lte_build_oai/build
 
./lte-softmodem -O ~/opencells-mods/enb.10MHz.b200
 
./lte-softmodem -O ~/opencells-mods/enb.10MHz.b200
 +
 
Connect the UE, it should attach to network and be able to reach internet through OAI network.
 
Connect the UE, it should attach to network and be able to reach internet through OAI network.
  
Line 212: Line 258:
 
The first case is to verify the USRP dialogs over USB3 (not USB2): the process must report:
 
The first case is to verify the USRP dialogs over USB3 (not USB2): the process must report:
  
−
Found USRP B200
+
Found USRP B200
−
-- Detected Device: B200
+
-- Detected Device: B200
−
-- Operating over USB 3.
+
-- Operating over USB 3.
 +
 
 
For OAI source code, we wrote improvements and some hints for UE performance last year. The Linux/Ubuntu advises can be applied to the eNB:
 
For OAI source code, we wrote improvements and some hints for UE performance last year. The Linux/Ubuntu advises can be applied to the eNB:
  
−
https://gitlab.eurecom.fr/oai/openairinterface5g/wikis/setup-for-real-time-performance
+
https://gitlab.eurecom.fr/oai/openairinterface5g/wikis/setup-for-real-time-performance
  
 
We may make later a post for eNB (OAI/eNB can reach much better performance than today develop branch, but it require to enhance parts of the source code).
 
We may make later a post for eNB (OAI/eNB can reach much better performance than today develop branch, but it require to enhance parts of the source code).
Line 224: Line 271:
  
 
On the i5-6600K, we obtained stable performance at maximum traffic over 20MHz, transmission mode 1 (SISO), duplexer, antenna, E3372 UE (one single UE) over-the-air 10 cm distance :
 
On the i5-6600K, we obtained stable performance at maximum traffic over 20MHz, transmission mode 1 (SISO), duplexer, antenna, E3372 UE (one single UE) over-the-air 10 cm distance :
−
 
−
 
−
 
−
 
−
 
  
 
==Referensi==
 
==Referensi==
  
 
* https://open-cells.com/index.php/2019/09/22/all-in-one-openairinterface/
 
* https://open-cells.com/index.php/2019/09/22/all-in-one-openairinterface/

Latest revision as of 11:28, 7 October 2022

Sumber: https://open-cells.com/index.php/2019/09/22/all-in-one-openairinterface/

Yang digunakan

  • Ubuntu 18.04 64bit
  • Ettus B210 (kalau ada), kalau tidak ada kita coba simulasi physical.

Download Source OAI EPC

sudo apt install git


Sebagai user biasa, download config mods dari opencells 

cd ~
wget https://open-cells.com/opencells-mods-20190923.tgz
tar xf opencells-mods-20190923.tgz

Download and patch EPC 

cd ~
wget https://open-cells.com/d5138782a8739209ec5760865b1e53b0/openair-cn.tgz
tar xf openair-cn.tgz
cd openair-cn
git checkout develop

Apply the patch: 

git apply ~/opencells-mods/EPC.patch


What is in the patch file:

  • Add Ubuntu 18.04 for compilation and fix some bugs
  • Remove link between Linux host name and LTE diameter protocol configuration
  • Add usage of the input address for the SGW input socket

modify the freediameter S6a interface to fix a wrong OAI parameter

  • No kernel module patch is required: generic Ubuntu kernel 18.04 works fine with OAI
  • separate ASN.1 compiler installation to be compatible with other OpenAir components on the same machine (ans1c version is different for eNB and gNB)

Install third party SW for EPC 

cd ~/openair-cn
source oaienv
cd scripts
./build_hss -i

Do you want to install freeDiameter 1.2.0: yes

Jika ada kesalahan, coba 

sudo apt --fix-broken install
cd ~/openair-cn
source oaienv
cd scripts
./build_hss -i

Untuk ubuntu 18.04, set back legacy mysql security level 

sudo mysql -u root
USE mysql;
UPDATE user SET plugin='mysql_native_password' WHERE User='root';
FLUSH PRIVILEGES;
quit

sudo systemctl restart mysql.service

Default username root, password "kosong"

Install 3PP SW untuk mme dan spgw 

sudo apt fix-broken install
cd ~/openair-cn
source oaienv
cd scripts
./build_mme -i

Do you want to install freeDiameter 1.2.0 <y/N>: yes
Do you want to install asn1c rev 1516 patched? <y/N>: yes
Do you want to install libgtpnl ? <y/N>: yes
wireshark permissions: as you prefer



cd ~/openair-cn
source oaienv
cd scripts
./build_spgw -i
Do you want to install libgtpnl ? <y/N>: no

Compile the EPC nodes

Kalau gagal di ulang lagi saja. 

cd ~/openair-cn
source oaienv
cd scripts
./build_hss
./build_mme
./build_spgw

Jika ada masalah compile, cek string "error:" di, 

openair-cn/build/log

Download & Compile the eNB on 18.04

cd ~
git config --global user.name "Onno"
git config --global user.email "onno@indo.net.id"
git clone https://gitlab.eurecom.fr/oai/openairinterface5g.git
cd ~/openairinterface5g
git checkout develop

We tested with commit edb74831dabf79686eb5a92fbf8fc06e6b267d35 Build in two steps 

sudo apt -y install libuhd-dev libuhd003 uhd-host
source oaienv  
./cmake_targets/build_oai -I  # install SW packages from internet
./cmake_targets/build_oai -I 

./cmake_targets/build_oai -I -w USRP --eNB
./cmake_targets/build_oai -I -w USRP --eNB --UE # compile eNB and UE

./cmake_targets/build_oai -I --eNB -x --install-system-files -w USRP
./cmake_targets/build_oai -I --eNB -x --install-system-files -w EXMIMO
./cmake_targets/build_oai -I --eNB -x --install-system-files -w BLADERF

Our Network setup description

I’ve made a simple configuration for this all-in-one setup.

Each node is on a separate IP address, this address is used for all it’s interfaces. In our case of all-in-one, we take addresses on the loopback: this will be fine on all your machines. 

HSS is on localhost: 127.0.0.1
eNB is on 127.0.0.10
MME is on 127.0.0.20
SPGW is on 127.0.0.30

The LTE diameter configuration is now isolated from Linux hostname.

realm for our EPC: “OpenAir5G.Alliance”, so, full distinguish names (FQDN) are: 

hss.OpenAir5G.Alliance,
mme.OpenAir5G.Alliance

Install this configuration for eNB

In your eNB configuration file, the network is now fixed, as lo interface always exists and our computer internal addresses also: 

 ////////// MME parameters:
 mme_ip_address = ( { ipv4 = "127.0.0.20";
 ipv6 = "192:168:30::17";
 active = "yes";
 preference = "ipv4";
 }
 );

NETWORK_INTERFACES : 
 {
 ENB_INTERFACE_NAME_FOR_S1_MME = "lo";
 ENB_IPV4_ADDRESS_FOR_S1_MME = "127.0.0.10/8"; 

 ENB_INTERFACE_NAME_FOR_S1U = "lo";
 ENB_IPV4_ADDRESS_FOR_S1U = "127.0.0.10/8";
 ENB_PORT_FOR_S1U = 2152; # Spec 2152
 };

In the eNB config file, you need also to set the MCC and MNC as per your SIM card: 

tracking_area_code = “1”;
mobile_country_code = “208”;
mobile_network_code = “92”;

And obviously, your radio parameters.

Wwe tested with USRP B210 20MHz band, Huawei E3272 UE, a cavity duplexer a simple antenna, about 1 meter distance UE/eNB antenna with this file: 

~/opencells-mods/enb.10MHz.b200

if you use the OpenAir UE, a sim card file that match our hss database example: opencells-mods/sim.conf. We will make another tutorial to use together OpenAir UE and rf board simulation

Install this configuration for EPC For the EPC, we install in OAI default directory: /usr/local/etc/oai 

sudo mkdir -p /usr/local/etc/oai
sudo cp -rp ~/opencells-mods/config_epc/* /usr/local/etc/oai
cd openair-cn; source oaienv; cd scripts
./check_hss_s6a_certificate /usr/local/etc/oai/freeDiameter hss.OpenAir5G.Alliance
./check_mme_s6a_certificate /usr/local/etc/oai/freeDiameter mme.OpenAir5G.Alliance

Only the SGi output to internet need to be configured.

In /usr/local/etc/oai/spgw.conf, your should set the Ethernet interface that is connected to Internet, and, to tell to the PGW to implement NAPT for the UE traffic 

PGW_INTERFACE_NAME_FOR_SGI = "enp3s0"; 
PGW_MASQUERADE_SGI = "yes";

For the SIM card, you’ll have more to do:

  • SIM MCC/MNC should be duplicated in a couple of files
  • eNB: See above in eNB configuration chapter
  • MME file: /usr/local/etc/oai/mme.conf to update
GUMMEI_LIST = ( MCC="208" ; MNC="92"; MME_GID="4" ; MME_CODE="1"; } );
TAI_LIST = ({MCC="208" ; MNC="92"; TAC = "1"; } );
HSS

Configure the password for MySQL in /usr/local/etc/oai/hss.conf, set password as the password you created during MySQL installation A HSS database in text is in: ~/opencells-mods/opencells_db.sql We don’t use phpmyadmin: we load the database from a ascii file It is pre-configured with the 

mme id

10 users is network 208/92 (a French test network) are also created (don’t use 3GPP test network: 001/01: the mme fails when MCC starts by “0”)

Each time you import this db, it erases the entire database (example: you set mysql password to “linux”) ~/opencells-mods/hss_import 127.0.0.1 root linux oai_db ~/opencells-mods/opencells_db.sql We use to modify the db by updating this file with regular text editor, then we re-load the entire database, but, if you prefer, usage of http://localhost/phpmyadmin is fine. if you modified the hss db directly, we offer a export script: 

~/opencells-mods/hss_export

The important values to set are:

  • table pdn:

all IMSI are listed, with the APN: these values are in UE/USIM

  • table users:

all IMSI, key (Ki) and OPc must be the same in USIM card Sqn increments automatically when the UE authenticate in both USIM and HSS DB: it should be set as per USIM internal incrementation

SIM card update Open cells UICC and card reader will be supported Final test and verification open 4 terminal windows

in each window 

cd openair-cn; source oaienv; cd scripts; ./run_hss
cd openair-cn; source oaienv; cd scripts; ./run_mme
cd openair-cn; source oaienv; cd scripts; sudo -E ./run_spgw
sudo bash
cd ~/openairinterface5g; source oaienv
cd cmake_targets/lte_build_oai/build

./lte-softmodem -O ~/opencells-mods/enb.10MHz.b200

Connect the UE, it should attach to network and be able to reach internet through OAI network.

If the UE attaches, but you don’t have internet access, verify phone configuration: enable data in config->sim and verify the APN value

Issues related to CPU power If you reach performance issues: USRP/UHD prints “LLLLL” or the process exits “problem with samples”, OVERFLOW, …

The first case is to verify the USRP dialogs over USB3 (not USB2): the process must report: 

Found USRP B200
-- Detected Device: B200
-- Operating over USB 3.

For OAI source code, we wrote improvements and some hints for UE performance last year. The Linux/Ubuntu advises can be applied to the eNB: 

https://gitlab.eurecom.fr/oai/openairinterface5g/wikis/setup-for-real-time-performance

We may make later a post for eNB (OAI/eNB can reach much better performance than today develop branch, but it require to enhance parts of the source code).

We re-built this procedure from scratch and tested i5-6600K.

On the i5-6600K, we obtained stable performance at maximum traffic over 20MHz, transmission mode 1 (SISO), duplexer, antenna, E3372 UE (one single UE) over-the-air 10 cm distance :

Referensi

Retrieved from "https://onnocenter.or.id/wiki/index.php?title=4G:_OpenAirInterface_dari_OpenCell&oldid=66178"