On June 5, 2024, at the EuCNC & 6G Summit 2024, 6G-NTN project partners presented a paper titled “Emerging Advancements in 6G NTN Radio Access Technologies: An Overview.” The presentation took place during the Session “Emerging Use Cases” chaired by Ahmad Nimr, Dresden University of Technology, Germany.

The paper developed within the context of WP4 ‘6G NTN Radio Access Technologies’ led by CTTC, explores various challenges faced by Radio Access Technologies (RATs) in 6G Non-Terrestrial Networks (NTN) and proposes potential advancements to address these issues. Key areas of focus include improvements in Radio Resource Management (RRM), spectral coexistence between terrestrial and non-terrestrial components, and flexible waveform design solutions. These emerging advancements are crucial for developing next-generation networks and could play a significant role in shaping future standardization efforts. 

Authors

Husnain Shahid (Centre Tecnologic de Telecomunicacions de Catalunya -CTTC, Spain); Carla Amatetti and Riccardo Campana (University of Bologna, Italy); Sorya Tong (Thales SIX GTS, France); Dorin Panaitopol (THALES SIX GTS France, France); Alessandro Vanelli-Coralli (University of Bologna, Italy); Abdelhamed Mohamed (Orange, France); Chao Zhang (Ericsson, United Kingdom (Great Britain)); Ebraam Ebraam Khalifa (Qualcomm, France); Eduardo Medeiros (Ericsson, Sweden); Estefania Recayte (German Aerospace Center – DLR, Germany); Fatemeh Ghasemifard (Ericsson AB, Sweden); Ji Lianghai (Qualcomm Technologies, Inc., USA); Juan Bucheli (Qualcomm & Qualcomm, France); Karthik Anantha Swamy (Qualcomm Technologies Inc., USA); Marius Caus (CTTC, Spain); Mehmet Gurelli (Qualcomm, USA); Miguel Angel Ángel Vazquez (CTTC, Spain); Musbah Shaat (Centre Tecnològic de Telecomunicacions de Catalunya (CTTC) / CERCA, Spain); Nathan Borios (Thales Alenia Space, France); Per-Erik Eriksson (Ericsson Research, Sweden); Sebastian Euler (Ericsson, Sweden); Zheng Li (CentraleSupelec, France); Xiaotian Fu (Ericsson, France)

Abstract

The efforts on the development, standardization and improvements to communication systems towards 5G Advanced and 6G are on track to provide benefits such as an unprecedented level of connectivity and performance, enabling a diverse range of vertical services. The full integration of non-terrestrial components into 6G plays a pivotal role in realizing this paradigm shift towards ubiquitous communication and global coverage. However, this integration into 6G brings forth a set of its own challenges, particularly in Radio Access Technologies (RATs). To this end, this paper comprehensively discusses those challenges at different levels of RATs and proposes the corresponding potential emerging advancements in the realm of 6G NTN. In particular, the focus is on advancing the prospective aspects of Radio Resource Management (RRM), spectral coexistence in terrestrial and non-terrestrial components and flexible waveform design solutions to combat the impediments. This discussion with a specific focus on emerging advancements in 6G NTN RATs is critical for shaping the next generation networks and potentially relevant in contributing the part in standardization in forthcoming releases.

Keywords

6G NTN, RATs, RRM, spectrum coexistence, flexible waveforms

About the EuCNC & 6G Summit

The EuCNC & 6G Summit builds on putting together two successful conferences in the area of telecommunications: the European Conference on Networks and Communications, supported by the European Commission, and the 6G Summit, which originated from the 6G Flagship program in Finland. The conference is sponsored by the IEEE Communications Society (ComSoc), the European Association for Signal Processing (EURASIP) and the European Association on Antennas and Propagation (EurAAP). The event focuses on all aspects of telecommunications ranging from 5G deployment and mobile IoT to 6G exploration and future communications systems and networks, including experimentation and testbeds, and applications and services. The conference brings together cutting-edge research and world-renowned industries and businesses. In the last few years, the conference has attracted over 900 delegates from more than 40 countries who came together to present and discuss the latest results and demonstrate developed technologies.