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Spectrum Sharing and Sensing-Based Scheduling in Integrated Terrestrial–Non-Terrestrial Networks
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DOI：10.1109/ojvt.2026.3707633.png)
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Abstract
En 中文
The integration of terrestrial networks (TN) and non-terrestrial networks (NTN) is a key enabler for ubiquitous connectivity in IMT-2030 (6G). Achieving seamless TN-NTN integration requires addressing critical coexistence challenges arising from spectrum sharing and overlapping coverage. TN and NTN provide complementary coverage solutions, with TN primarily serving dense urban areas and NTN extending connectivity to sparsely populated and remote regions. This complementarity enables efficient spectrum reuse, thereby enhancing overall system capacity. However, in regions with overlapping coverage, shared spectral resources may result in inter-system interference. Moreover, static spectrum-sharing mechanisms can lead to spectrum under-utilization or congestion under dynamic traffic conditions. This paper investigates mechanisms to realize efficient spectrum reuse between TN and NTN while protecting overlapping coverage areas from inter-system interference. In particular, we propose spectrum sensing–based approaches that build upon standardized sensing mechanisms defined by 3GPP, enabling adaptive and interference-aware spectrum coordination.
Keywords:
3GPP
6G
IMT-2030
inter-system interference
interference management
scheduling
sensing
spectrum sharing
TN-NTN co-existence
Journal
I
IF:
4.8
Papers:
493
Citations:
987
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Cited Papers