@article{MC8F1D3EA,
title = "An Overview of Mobility Enhancement Technologies for 5G-Advanced Non-Terrestrial Networks (NTN)",
journal = "The Journal of Korean Institute of Communications and Information Sciences",
year = "2025",
issn = "1226-4717",
doi = "10.7840/kics.2025.50.12.1846",
author = "Soyeon Park, Jaewoo Kim, Jongman Lee, Hyun Park, Jinyeong Chang, Suhan Choi",
keywords = "NTN(Non-Terrestrial Networks), Mobility, 5G, 5G-Advanced, 3GPP Release 18",
abstract = "This paper analyzes and describes the mobility enhancement technologies standardized in 3GPP Release 18, corresponding to the 5G-Advanced specifications, for Non-Terrestrial Networks (NTNs). In particular, it provides a detailed discussion of key technologies such as NTN-TN mobility, RACH-less handover in NTN environments, satellite switch with re-synchronization, cell measurement methods and triggering events in moving-cell scenarios, and conditional handover enhancements. Furthermore, the paper examines the improvements introduced compared to previous Releases, and explains the concepts, protocol procedures, and future development directions of each technology."
}