US 11,895,606 B2
Methods for updating timing advance and beam and bandwidth part switching for non-terrestrial networks
Seyed Mohsen Hosseinian, San Diego, CA (US); and Philippe Sartori, Naperville, IL (US)
Assigned to Samsung Electronics Co., Ltd
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Apr. 1, 2022, as Appl. No. 17/711,550.
Claims priority of provisional application 63/225,076, filed on Jul. 23, 2021.
Claims priority of provisional application 63/182,477, filed on Apr. 30, 2021.
Prior Publication US 2022/0353837 A1, Nov. 3, 2022
Int. Cl. H04W 56/00 (2009.01); H04W 84/06 (2009.01)
CPC H04W 56/0015 (2013.01) [H04W 56/007 (2013.01); H04W 56/009 (2013.01); H04W 84/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of performing a timing advance adjustment between a user equipment (UE) and a non-terrestrial network (NTN), the method comprising:
receiving and decoding a medium access control (MAC) control element (CE) including closed loop information;
receiving and decoding system information including open loop information;
determining a timing advance value based on either the closed loop information or the open loop information; and
controlling timing of an uplink transmission signal, transmitted from the UE, based on the timing advance value,
wherein determining the timing advance value comprises:
configuring a priority timer,
assigning a priority to either a closed loop method or an open loop method, and
using either the closed loop method or the open loop method to determine the timing advance value based on the assigned priority and a state of the priority timer.