O-DU High and Low Integration

This page describes O-DU High/Low pairwise testing procedure in Timer mode.

Demo Video

Delivery Status

DO NOT EDIT

Only the Integration PTL should edit the delivery status table to track the release validation progress

		Notes
Deployment Artifacts	Docker Container	Dockerfiles are released, however, containers are not generated and tested.
	Helm Charts
	Deployment scripts
	OS Image
E2E Flows	WLS interface ready
	UL IQ sample request
	UL IQ sample response
	Config request
	Config response
	Start request
	Slot indication

Cloning O-DU High code

mkdir odu_high
cd odu_high
git clone "https://gerrit.o-ran-sc.org/r/o-du/l2"

Cloning O-DU Low code

mkdir odu_low
cd odu_low
- git clone "https://gerrit.o-ran-sc.org/r/o-du/phy"
- Download code from "https://github.com/intel/FlexRAN"

Install O-DU High pre-requisite libraries by following https://docs.o-ran-sc.org/projects/o-ran-sc-o-du-l2/en/latest/installation-guide.html .
Install O-DU Low by following https://docs.o-ran-sc.org/projects/o-ran-sc-o-du-phy/en/latest/index.html .

Compilation Preparation

mkdir odu_high/l2/src/wls_lib
mkdir odu_high/l2/src/dpdk_lib

cp odu_low/phy/wls_lib/wls_lib.h odu_high/l2/src/wls_lib/
cp odu_low/dpdk-19.11/x86_64-native-linuxapp-gcc/include/rte_* odu_high/l2/src/dpdk_lib/

DPDK library

O-DU low instructs to build DPDK using x86_64-native-linuxapp-icc

O-DU high uses x86_64-native-linuxapp-gcc, or library will be missing.

Compilation

cd odu_high/l2/build/odu
make odu PHY=INTEL_L1 PHY_MODE=TIMER MACHINE=BIT64 MODE=FDD

Hardcoded Library Location

The makefile of odu assumes the required libraries is located at /opt/intel
Modification of the makefile is needed if the libraries are located at different location.

Execution - Bringing up L1 of O-DU Low

cd odu_low/phy
source ./setupenv.sh
cd odu_low/FlexRAN/l1/bin/nr5g/gnb/l1
./l1.sh -e

Non BBU threads in application
===========================================================================================================
nr5g_gnb_phy2mac_api_proc_stats_thread: [PID:   8659] binding on [CPU  0] [PRIO:  0] [POLICY:  1]
wls_rx_handler (non-rt):                [PID:   8663] binding on [CPU  0]
===========================================================================================================

PHY>welcome to application console

Dynamic Library Path

May need to include the paths to the following libraries in the environment variable LD_LIBRARY_PATH

./odu_low/FlexRAN/libs/cpa/bin

./odu_low/phy/wls_lib

./odu_low/phy/fhi_lib/lib/build

Execution - Bringing up FAPI Translator of O-DU Low

cd odu_low/phy
source ./setupenv.sh
cd odu_low/phy/fapi_5g/bin/
./oran_5g_fapi –cfg=oran_5g_fapi.cfg

Assign virtual IP addresses as follows:

ifconfig <interface name>:ODU “192.168.130.81”

ifconfig <interface name>:CU_STUB “192.168.130.82”

ifconfig <interface name>:RIC_STUB “192.168.130.80”

Execution - Running CU Stub
```
cd odu_high/bin/cu_stub
./cu_stub
```
Execution - Running RIC Stub
```
cd odu_high/bin/ric_stub
./ric_stub
```

Execution - Running O-DU High

cd odu_high/bin/odu
export LD_LIBRARY_PATH=odu_low/phy/wls_lib/lib:$LD_LIBRARY_PATH
./odu