US 12,279,312 B2
DL control resources sets and RACH procedure during initial access
Hong He, Cupertino, CA (US); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Irvine, CA (US); Huaning Niu, San Jose, CA (US); Oghenekome Oteri, San Diego, CA (US); Seyed Ali Akbar Fakoorian, San Diego, CA (US); Sigen Ye, Whitehouse Station, NJ (US); Wei Zeng, San Diego, CA (US); and Yushu Zhang, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/439,349
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Aug. 6, 2021, PCT No. PCT/CN2021/111175
§ 371(c)(1), (2) Date Sep. 14, 2021,
PCT Pub. No. WO2023/010525, PCT Pub. Date Feb. 9, 2023.
Prior Publication US 2023/0276499 A1, Aug. 31, 2023
Int. Cl. H04W 74/08 (2024.01); H04L 5/00 (2006.01); H04W 74/00 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) [H04L 5/0053 (2013.01); H04W 74/006 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A user equipment device (UE), comprising:
at least one antenna;
at least one radio, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT);
one or more processors coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform communications;
wherein the one or more processors are configured to cause the UE to:
receive a configuration for a control resource set (CORESET) for a Type0 physical downlink control channel (PDCCH) search space set based on supporting at least 96 physical resource blocks (PRBs) for one or more of 120 kilohertz (kHz), 480 kHz, or 960 kHz sub-carrier spacing (SCS);
receive, in a synchronization signal block (SSB) burst window (SSBBW), one or more SSB transmissions and at least one of a Type0 PDCCH search space set in CORESET #0 or a remaining minimum system information (RMSI) that is paired with an SSB transmission in the same SSBBW based on the configuration; and
determine, based on a configuration index included in a higher later parameter, positions of random access channel (RACH) occasion (RO) slots associated with a high frequency SCS within a reference physical RACH (PRACH) slot window associated with a reference SCS, wherein the positions of ROs are located in a last slot associated with the high SCS of the PRACH slot window.