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Merge remote-tracking branch 'origin/remove_l2_sim' into integration_2025_w42 (!3686)

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Remove NR L2 simulator code from UE

This MR removes NR (SA and NSA) L2 simulator from the codebase. The code, at
least at the UE side, was done at a time where there was no clear L2/L1 split
leading to a complex implementation that never worked as expected. The L2
simulator has been broken and removed from testing for long time and, once it
needs to be revived, it would require a complete new implementation.
This commit is contained in:
Jaroslava Fiedlerova
2025-10-13 14:19:24 +02:00
parent 3155bf907c 6289409f15
commit 4efb142f9a
36 changed files with 96 additions and 2881 deletions
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doc/Doxyfile
-1
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@@ -1836,7 +1836,6 @@ INPUT = \
@CMAKE_CURRENT_SOURCE_DIR@/../openair2/RRC/common.h \
@CMAKE_CURRENT_SOURCE_DIR@/../openair2/RRC/NR_UE/rrc_UE.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair2/RRC/NR_UE/rrc_sl_preconfig.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair2/RRC/NR_UE/rrc_nsa.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair2/RRC/NR_UE/rrc_proto.h \
@CMAKE_CURRENT_SOURCE_DIR@/../openair2/RRC/NR_UE/rrc_vars.h \
@CMAKE_CURRENT_SOURCE_DIR@/../openair2/RRC/NR_UE/sl_preconfig_paramvalues.h \
doc/L2NFAPI.md
+1 -42
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@@ -40,48 +40,7 @@ Normally it should be fine to run both executables on the same host using the `l
**2022/03/08: Starting the `2022.w01` tag on the `develop` branch, the L2 nFAPI simulation is using a proxy.**
## 5G L2 nFAPI simulator
**Note: L2 simulator does not work anymore.**
### Download and Build the Proxy Server (from EpiSci)
```bash
$ cd ~
$ git clone https://github.com/EpiSci/oai-lte-5g-multi-ue-proxy.git
$ cd oai-lte-multi-ue-proxy
$ make
```
### Start Proxy Server
Set the number of UEs to connect to server as 1 and the mode is SA.
```bash
$ number_of_ues=1
$ sudo -E ./build/proxy $number_of_ues --nr
```
### Start gNB
```bash
$ sudo -E ./nr-softmodem -O ../ci-scripts/conf_files/episci/proxy_rcc.band78.tm1.106PRB.nfapi.conf --nfapi VNF --noS1 --emulate-l1
```
### Start UE
```bash
$ sudo -E ./nr-uesoftmodem -O ../ci-scripts/conf_files/nrue.uicc.conf --nfapi STANDALONE_PNF --node-number 2 --emulate-l1
```
### EpiSci's Documentation
A more detailed tutorial is available on the [EpiSci GitHub Repository](https://github.com/EpiSci/oai-lte-5g-multi-ue-proxy#readme).
This proxy allows to perform L2 nFAPI simulator for:
* LTE
* 5G-NSA
* 5G-SA
### L2 Simulator as Docker Containers
There used to be docker deployment with L2sim that was run in the CI. Since L2
simulator does not work anymore, it has been removed. However, you can see the
old `README.md` from tag `2024.w44`
[here](https://gitlab.eurecom.fr/oai/openairinterface5g/-/blob/2024.w44/ci-scripts/yaml_files/5g_l2sim_tdd/README.md).
In the same directory is a `docker-compose.yaml` file that can be used to run
L2sim.
Since 5G code has been removed, this proxy allows to perform L2 nFAPI simulator for LTE only.