US 11,818,770 B2
Random access channel beam management
Iyab Issam Sakhnini, San Diego, CA (US); and Tao Luo, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 3, 2021, as Appl. No. 17/303,627.
Claims priority of provisional application 63/038,466, filed on Jun. 12, 2020.
Prior Publication US 2021/0392697 A1, Dec. 16, 2021
Int. Cl. H04W 74/08 (2009.01); H04W 72/044 (2023.01); H04W 74/00 (2009.01)
CPC H04W 74/0841 (2013.01) [H04W 72/046 (2013.01); H04W 74/006 (2013.01); H04W 74/0891 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
receive information indicating a switch from using a first set of random access channel (RACH) occasions (ROs), associated with a first set of synchronization signal block (SSB) beams, for physical RACH (PRACH) communications to using a second set of ROs, associated with a second set of SSB beams, for the PRACH communications, wherein the switch is based at least in part on a first beam of the first set of SSB beams being not available; and
transmit, based at least in part on receiving the information indicating the switch, a PRACH communication using an RO, of the second set of ROs, on a SSB beam of the second set of SSB beams.