Patent ID: 11864142
Assignee: FG INNOVATION COMPANY LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method performed by a User Equipment (UE) for timing alignment, the method comprising:
receiving, from a Base Station (BS), a first configuration indicating at least one of a scheduling offset, a common Timing Advance (TA), and satellite ephemeris information;
receiving, from the BS, a second configuration indicating a TA offset for a TA variable;
determining a UE-specific TA based on the satellite ephemeris information;
determining a total TA based on at least one of the TA variable, the TA offset for the TA variable, the common TA, and the UE-specific TA;
determining the scheduling offset to be zero if the scheduling offset is not provided by the BS, wherein the scheduling offset includes a feeder link Round Trip Time (RTT); and
starting, from a transmission by the UE, a time window after an additional time based on the total TA and the scheduling offset.