US 11,985,614 B2
Synchronization signal block transmission in wireless communications
Hong He, San Jose, CA (US); Chunhai Yao, Beijing (CN); Chunxuan Ye, San Diego, CA (US); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Cupertino, CA (US); Oghenekome Oteri, San Diego, CA (US); Seyed Ali Akbar Fakoorian, San Diego, CA (US); Sigen Ye, Whitehouse Station, NJ (US); Wei Zeng, Saratoga, CA (US); Weidong Yang, San Diego, CA (US); and Yushu Zhang, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/593,592
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Oct. 9, 2020, PCT No. PCT/CN2020/120011
§ 371(c)(1), (2) Date Sep. 21, 2021,
PCT Pub. No. WO2022/073203, PCT Pub. Date Apr. 14, 2022.
Prior Publication US 2022/0303922 A1, Sep. 22, 2022
Int. Cl. H04W 56/00 (2009.01); H04L 5/00 (2006.01); H04L 41/0803 (2022.01)
CPC H04W 56/001 (2013.01) [H04L 5/0048 (2013.01); H04L 41/0803 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A baseband processor configured to perform operations comprising:
configuring a discovery reference signal (DRS) window for synchronization signal block (SSB) transmission to a user equipment (UE);
transmitting a subCarrierSpacingCommon information element (IE) to the UE, wherein the subCarrierSpacingCommon IE is configured to indicate a number of SSB candidate positions for operation in the unlicensed spectrum above 6 gigahertz (Ghz);
determining that a channel in an unlicensed spectrum is not occupied; and
transmitting multiple SSBs to the UE in response to determining that the channel in the unlicensed spectrum is not occupied.