Invention Grant
- Patent Title: Transparency window aware sequence selection and transmission procedure for device discovery and range estimation
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Application No.: US17795773Application Date: 2021-01-28
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Publication No.: US12206543B2Publication Date: 2025-01-21
- Inventor: Alpaslan Demir , Tanbir Haque , Ravikumar Pragada , Hussain Elkotby , Mahmoud Abdelgelil , Patrick Cabrol
- Applicant: InterDigital Patent Holdings, Inc.
- Applicant Address: US DE Wilmington
- Assignee: InterDigital Patent Holdings, Inc.
- Current Assignee: InterDigital Patent Holdings, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Flaster Greenberg P.C.
- International Application: PCT/US2021/015443 WO 20210128
- International Announcement: WO2021/154960 WO 20210805
- Main IPC: H04L27/06
- IPC: H04L27/06 ; 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.
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