Invention Grant
- Patent Title: Channel raster and synchronization signal raster for NR unlicensed spectrum
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Application No.: US17593080Application Date: 2020-05-13
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Publication No.: US12185262B2Publication Date: 2024-12-31
- Inventor: Yang Tang , Dae Won Lee , Prerana Rane , Bishwarup Mondal , Jiwoo Kim , Yongjun Kwak , Suenghee Han
- Applicant: APPLE INC.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Dorsey & Whitney LLP
- International Application: PCT/US2020/032736 WO 20200513
- International Announcement: WO2020/232164 WO 20201119
- Main IPC: H04W56/00
- IPC: H04W56/00 ; H04L27/26

Abstract:
Systems and methods for determining channel raster(s) and synchronization signal raster(s) for New Radio (NR) unlicensed spectrum are disclosed herein. For each of a plurality of data objects an NR channel raster position is determined using Absolute Radio Frequency Channel Number (NR-ARFCN) numbers. For each corresponding NR channel. Global Synchronization Channel Numbers (GSCNs), a number of Physical Resource Blocks (PRBs) based on channel subcarrier spacing (SCS). NR channel raster position placement, channel edges, synchronization signal and physical broadcast channel (SSB) edges, and an SSB raster position are calculated. The plurality of data objects may then be down selected based on e.g., corresponding Long Term Evolution (LTE) channel raster positions and/or entries of a second plurality of data objects calculated for NR channels that use a second SCS.
Public/Granted literature
- US20220191810A1 CHANNEL RASTER AND SYNCHRONIZATION SIGNAL RASTER FOR NR UNLICENSED SPECTRUM Public/Granted day:2022-06-16
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