Keysight Technologies, Inc. and Capgemini SE have successfully validated non-terrestrial network test scenarios in a set-up using Capgemini?s 5G New Radio central unit and distributed unit framework supporting NTN functionality. The validation was made possible with Keysight?s UeSIM UE Emulation RAN and Propsim Channel Emulator solutions, which offer end-to-end performance by emulating real network traffic. The validation is based on 3GPP Release 17 standards which includes significant enhancements to several radio access network functionalities.

In the context of NTN, 5G radio access network (RAN) gNodeB base stations continue to play a crucial role, especially in satellite-based communication systems. gNode B brings more reliable connectivity, extending the range of 5G to remote areas, while also paving the way for innovation and new NTN deployments, such as internet of things (IoT) and connected vehicles. Capgemini validated its 5G NR gNodeB feature using Keysight?s UeSim Emulation RAN solution, which emulates NTN enabled user devices, and Keysight?s Propsim solution, which emulates satellite conditions such as delay and doppler shift. The solution addresses the complexities associated with the introduction of 5G NR gNodeB NTN features by quickly testing and validating network protocols and orbit channel modeling.

The first live demonstration of Capgemini?s 5G NR NTN CU/DU framework capability took place at Mobile World Congress 2024 and was accomplished by emulating a constellation of satellites in low earth orbit (LEO) with Propsim and emulating real network traffic with the UeSIM UE Emulation RAN solution. The demonstration will be presented again at Satellite 2024 from March 19-21.