公开(公告)号：US20240306077A1

公开(公告)日：2024-09-12

申请号：US18595940

申请日：2024-03-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vivek Murugaian ,  Kailash Kumar Jha ,  Mohammad Umair ,  Nishant ,  Amit Anandrao Dange

IPC: H04W48/10 ,  H04W4/90 ,  H04W76/27 ,  H04W84/06

CPC classification number: H04W48/10 ,  H04W4/90 ,  H04W76/27 ,  H04W84/06

Abstract: Embodiments disclosed herein relate to dynamic methods and systems for reading System Information Block 19 (SIB19) for maintaining Uplink Synchronization (UL Sync) and updated cell information during Non-Terrestrial networks (NTN) connectivity. The methods include a dynamic algorithm to reacquire SIB19 by considering different factors of UE's current status such as Radio Resource Control (RRC) states (idle/inactive/connected), SI periodicity of SIB19, emergency call status and UL Sync validity timer duration. The methods include monitoring of the UE status periodically and dynamically executing the algorithm to decide the time instance and periodicity to re-acquire SIB-19 based on UE current status. The methods include evaluating the UE condition on each SIB periodicity, and determining the next time period and periodicity to read SIB19.