An Overview of Mobility Enhancement Technologies for Non-Terrestrial Networks in 3GPP 5G Standards 


Vol. 50,  No. 2, pp. 280-292, Feb.  2025
10.7840/kics.2025.50.2.280


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  Abstract

This paper describes mobility enhancement technologies for Non-Terrestrial Networks (NTNs) based on the 3GPP 5G standards, focusing on differences from existing Terrestrial Networks (TN). It introduces difficult problems to support mobility according to the structural characteristics of non-terrestrial networks and deals in detail with tracking area, conditional handover, and feeder link switchover to overcome them. By introducing issues related to mobility in non-terrestrial networks discussed in 3GPP Release 18, which was standardized at the end of 2023, the future development potential and trends of mobility technologies for non-terrestrial networks are also described.

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[IEEE Style]

S. Park, J. Jang, S. Choi, "An Overview of Mobility Enhancement Technologies for Non-Terrestrial Networks in 3GPP 5G Standards," The Journal of Korean Institute of Communications and Information Sciences, vol. 50, no. 2, pp. 280-292, 2025. DOI: 10.7840/kics.2025.50.2.280.

[ACM Style]

Soyeon Park, Junmo Jang, and Suhan Choi. 2025. An Overview of Mobility Enhancement Technologies for Non-Terrestrial Networks in 3GPP 5G Standards. The Journal of Korean Institute of Communications and Information Sciences, 50, 2, (2025), 280-292. DOI: 10.7840/kics.2025.50.2.280.

[KICS Style]

Soyeon Park, Junmo Jang, Suhan Choi, "An Overview of Mobility Enhancement Technologies for Non-Terrestrial Networks in 3GPP 5G Standards," The Journal of Korean Institute of Communications and Information Sciences, vol. 50, no. 2, pp. 280-292, 2. 2025. (https://doi.org/10.7840/kics.2025.50.2.280)
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pISSN : 1226 - 4717
eISSN : 2287 - 3880