**UERANSIM** (pronounced "ju-i ræn sɪm"), is the open source state-of-the-art 5G UE and RAN (gNodeB) simulator. UE and RAN can be considered as a 5G mobile phone and a base station in basic terms. The project can be used for testing 5G Core Network and studying 5G System. UERANSIM introduces the world's first open source 5G-SA UE and gNodeB implementation. > [!IMPORTANT] > UERANSIM is no longer actively developed by the maintainer. However community contributions are welcomed. ## Current Status Basic functionalities of UE and gNodeB are fully functional and ready to use. However some of the features are not complete. More details can be found at [Feature Set](https://github.com/aligungr/UERANSIM/wiki/Feature-Set). On the other hand, UERANSIM does not fully provide physical layer. 5G-NR radio interface is partially implemented, and simply simulated over UDP protocol.

## Documentation You can find the documentation on [UERANSIM Wiki](https://github.com/aligungr/UERANSIM/wiki). And, since the project is rapidly developing, please make sure that you have always the [latest](https://github.com/aligungr/UERANSIM/releases) UERANSIM. ## Contributing Any contributions you make are greatly appreciated via [Pull Request](https://github.com/aligungr/UERANSIM/pulls). ## Supporting You can support UERANSIM by: - Starring the GitHub repository, - Donating on [Open Collective](https://opencollective.com/UERANSIM) - Creating pull requests, submitting bugs, suggesting new features or documentation updates. ## License Copyright (c) 2025 ALİ GÜNGÖR. All source code and related files including documentation and wiki pages are dual licensed with [GPL-3.0](https://www.gnu.org/licenses/gpl-3.0.en.html) and a commercial license. > [!WARNING] > Closed-source commercial usage of UERANSIM is **not** permitted with the GPL-3.0. If that license is not compatable with your use case, please contact [ueransim@gmail.com](mailto:ueransim@gmail.com) to buy a commercial license.