TY - JOUR T1 - An Overview of Non-Terrestrial Network Technologies in 3GPP Release 19 AU - Jang, Junmo AU - Park, Soyeon AU - Choi, Suhan JO - The Journal of Korean Institute of Communications and Information Sciences PY - 2024 DA - 2024/1/1 DO - 10.7840/kics.2024.49.8.1064 KW - 3GPP Standard KW - 5G KW - 6G KW - B5G KW - New Radio KW - Non-terrestrial network KW - NR KW - NTN KW - Satellite communications AB - This paper analyzes and explains the Work Items related to the NTN (Non-Terrestrial Network) that are standardized in 3GPP Release 19. It also conducts an analysis of the reasons necessitating standardization for each Work Item and explains the expected effects based on the results of this analysis. Additionally, it provides an overview of the NTN-related technologies standardized in 3GPP Release 17 and Release 18. It delves more deeply into representative Work Items proposed for NTN in Release 19, such as regenerative payload, uplink capacity/coverage enhancements, downlink coverage enhancements, and mobility enhancements.