公开(公告)号：US20230093950A1

公开(公告)日：2023-03-30

申请号：US17795773

申请日：2021-01-28

Applicant: IDAC HOLDINGS, INC.

Inventor： Alpaslan DEMIR ,  Tanbir HAQUE ,  Ravikumar PRAGADA ,  Hussain ELKOTBY ,  Mahmoud ABDELGELIL ,  Patrick CABROL

IPC: H04L27/26

Abstract: A method for initial timing synchronization for a WTRU to communicate with a network includes receiving an in-channel narrowband synchronization sequence from the network to enable initial coarse timing synchronization, determining coarse timing offset and a range between a beam source of a network transmitter and the WTRU, selecting a wideband sequence for fine timing synchronization using the estimated range, transmitting the selected wideband sequence for fine timing synchronization during an uplink timing occasion, receiving from the network a transmission of the selected wideband sequence for fine timing synchronization, and establishing fine timing synchronization between the WTRU and the network using the selected sequence.