US 12,446,076 B2
Method and apparatus for a 2-step random access procedure in wireless communication system
Anil Agiwal, Suwon-si (KR); and Jaehyuk Jang, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Oct. 12, 2023, as Appl. No. 18/485,718.
Application 18/485,718 is a continuation of application No. 17/171,105, filed on Feb. 9, 2021, granted, now 11,805,555.
Claims priority of provisional application 62/975,435, filed on Feb. 12, 2020.
Prior Publication US 2024/0080904 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/0833 (2024.01); H04W 72/23 (2023.01); H04W 74/0836 (2024.01); H04W 74/0838 (2024.01)
CPC H04W 74/0833 (2013.01) [H04W 72/23 (2023.01); H04W 74/0836 (2024.01); H04W 74/0838 (2024.01)] 10 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
transmitting a physical random access channel (PRACH) preamble for a 2-step random access procedure;
in response to the transmission of the PRACH preamble, monitoring a physical downlink control channel (PDCCH) for a message B (MsgB) during a window based on a starting symbol of the window; and
receiving downlink control information on the PDCCH for the MsgB,
wherein in case that the PRACH preamble is associated with a valid physical uplink shared channel (PUSCH) occasion, the starting symbol is determined based on at least one symbol after a last symbol of the valid PUSCH occasion, and
wherein in case that the PRACH preamble is not associated with the valid PUSCH occasion, the starting symbol is determined based on at least one symbol after a last symbol of a PRACH occasion associated with the transmission of the PRACH preamble.