US 12,137,406 B2
Apparatus and method of identifying downlink transmission beam in a cellular network
Anil Agiwal, Suwon-si (KR); and Himke Van Der Velde, Zwolle (NL)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jun. 30, 2023, as Appl. No. 18/345,669.
Application 18/345,669 is a continuation of application No. 17/857,566, filed on Jul. 5, 2022, granted, now 11,696,220, issued on Jul. 4, 2023.
Application 17/857,566 is a continuation of application No. 16/647,179, granted, now 11,388,654, issued on Jul. 12, 2022, previously published as PCT/KR2018/010918, filed on Sep. 17, 2018.
Claims priority of provisional application 62/559,158, filed on Sep. 15, 2017.
Prior Publication US 2023/0345350 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 48/14 (2009.01); H04W 16/28 (2009.01); H04W 56/00 (2009.01); H04W 74/00 (2009.01)
CPC H04W 48/14 (2013.01) [H04W 16/28 (2013.01); H04W 56/001 (2013.01); H04W 74/004 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, first information on at least one random access (RA) preamble for system information (SI) request and second information for configuring at least one physical random access channel (PRACH) occasion for the SI request;
selecting a synchronization signal (SS) block;
selecting a RA preamble corresponding to the selected SS block from the at least one RA preamble based on the first information;
identifying a PRACH occasion from the at least one PRACH occasion corresponding to the selected SS block based on the second information; and
transmitting, to the base station, the selected RA preamble in the identified PRACH occasion.