Program SIM Card with [Open Cells Project](https://open-cells.com/) application [uicc-v2.6](https://open-cells.com/d5138782a8739209ec5760865b1e53b0/uicc-v2.6.tgz).
Make sure that during USRP initialization, it shows that USB 3 is used.
# 5. Testing with Quectel RM500Q
## 5.1 Setup Quectel
With [PuTTY](https://the.earth.li/~sgtatham/putty/latest/w64/putty.exe), send the following AT commands to the module using a serial interface (ex: COM2) at 115200 bps:
```bash
# MUST be sent at least once everytime there is a firmware upgrade!
AT+QMBNCFG="Select","ROW_Commercial"
AT+QMBNCFG="AutoSel",0
AT+CFUN=1,1
AT+CGDCONT=1,"IP","oai"
AT+CGDCONT=2
AT+CGDCONT=3
# (Optional, debug only, AT commands) Activate PDP context, retrieve IP address and test with ping
AT+CGACT=1,1
AT+CGPADDR=1
AT+QPING=1,"openairinterface.org"
```
## 5.2 Ping test
- UE host
```bash
ping 192.168.70.135 -t-S 12.1.1.2
```
- CN5G host
```bash
docker exec-it oai-ext-dn ping 12.1.1.2
```
## 5.3 Downlink iPerf test
- UE host
- Download iPerf for Microsoft Windows from [here](https://iperf.fr/download/windows/iperf-2.0.9-win64.zip).
- Extract to Desktop and run with Command Prompt:
```bash
cd C:\Users\User\Desktop\iPerf\iperf-2.0.9-win64\iperf-2.0.9-win64
4.[Run OAI CN5G and OAI gNB with USRP N300](#4-run-oai-cn5g-and-oai-gnb-with-usrp-n300)
4.[Run OAI CN5G and OAI gNB](#4-run-oai-cn5g-and-oai-gnb)
1.[Run OAI CN5G](#41-run-oai-cn5g)
2.[Run OAI gNB](#42-run-oai-gnb)
1.[USRP B210](#usrp-b210)
2.[USRP N300](#usrp-n300)
3.[USRP X300](#usrp-x300)
5.[Testing with QUECTEL RM500Q](#5-testing-with-quectel-rm500q)
1.[Setup QUECTEL](#51-setup-quectel)
2.[Ping test](#52-ping-test)
...
...
@@ -46,7 +49,8 @@ Minimum hardware requirements:
- CPU: 4 cores x86_64
- RAM: 8 GB
- Windows driver for Quectel MUST be equal or higher than version **2.2.4**
-[USRP N300](https://www.ettus.com/all-products/USRP-N300/) or [USRP X300](https://www.ettus.com/all-products/x300-kit/): Please identify the network interface(s) on which the USRP is connected.
-[USRP B210](https://www.ettus.com/all-products/ub210-kit/), [USRP N300](https://www.ettus.com/all-products/USRP-N300/) or [USRP X300](https://www.ettus.com/all-products/x300-kit/)
- Please identify the network interface(s) on which the USRP is connected and update the gNB configuration file
- Quectel RM500Q
- Module, M.2 to USB adapter, antennas and SIM card
- Firmware version of Quectel MUST be equal or higher than **RM500QGLABR11A06M4G**
...
...
@@ -162,25 +166,29 @@ cd cmake_targets
./build_oai -w USRP --ninja--nrUE--gNB--build-lib all -c
```
## 3.3 N300 Ethernet Tuning
## 3.3 USRP N300 and X300 Ethernet Tuning
Please also refer to the official [USRP Host Performance Tuning Tips and Tricks](https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks) tuning guide.
The following steps are recommended. Please change the network interface(s) as required. Also, you should have 10Gbps interface(s): if you use two cables, you should have the XG interface. Refer to the [N300 Getting Started Guide](https://kb.ettus.com/USRP_N300/N310/N320/N321_Getting_Started_Guide) for more information.
* Use an MTU of 9000: how to change this depends on the network management tool. In the case of Network Manager, this can be done from the GUI.
* Increase the kernel socket buffer (also done by the USRP driver in OAI):
```
sysctl -w net.core.rmem_max=8388608
sysctl -w net.core.wmem_max=8388608
sysctl -w net.core.rmem_default=65536
sysctl -w net.core.wmem_default=65536
```
* Increase the kernel socket buffer (also done by the USRP driver in OAI)
*Disable KPTI Protections for Spectre/Meltdown for more performance. **This is a security risk.** Add `mitigations=off nosmt` in your grub config and update grub.
* Disable hyper-threading in the BIOS (This step is optional)
*Optional: Disable KPTI Protections for Spectre/Meltdown for more performance. **This is a security risk.** Add `mitigations=off nosmt` in your grub config and update grub. (This step is optional)
# 4. Run OAI CN5G and OAI gNB with USRP N300
Example code to run:
```
for ((i=0;i<$(nproc);i++)); do sudo cpufreq-set -c $i -r -g performance; done
