US 12,171,027 B2
Method and apparatus for performing random access in wireless communication system
Jaehyuk Jang, Suwon-si (KR); and Soenghun Kim, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Feb. 16, 2021, as Appl. No. 17/176,546.
Application 17/176,546 is a continuation of application No. 16/368,140, filed on Mar. 28, 2019, granted, now 10,966,254.
Claims priority of application No. 10-2018-0036025 (KR), filed on Mar. 28, 2018.
Prior Publication US 2021/0168878 A1, Jun. 3, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/08 (2009.01); H04L 5/00 (2006.01); H04W 36/00 (2009.01); H04W 36/04 (2009.01); H04W 36/06 (2009.01); H04W 72/0453 (2023.01); H04W 72/20 (2023.01); H04W 72/23 (2023.01); H04W 72/50 (2023.01); H04W 74/00 (2009.01); H04W 74/0833 (2024.01); H04W 76/27 (2018.01)
CPC H04W 74/0833 (2013.01) [H04L 5/0098 (2013.01); H04W 36/04 (2013.01); H04W 36/06 (2013.01); H04W 72/20 (2023.01); H04W 72/23 (2023.01); H04W 72/535 (2023.01); H04W 74/002 (2013.01); H04W 74/006 (2013.01); H04W 76/27 (2018.02); H04W 36/0069 (2018.08); H04W 72/0453 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method, performed by a terminal, for a random access in a wireless communication system, the method comprising:
receiving, from a base station, bandwidth part (BWP) configuration information including an identity (ID) of each of at least one downlink (DL) BWP and at least one uplink (UL) BWP for each of at least one serving cell; and
performing a random access procedure on an active UL BWP of a serving cell based on the BWP configuration information,
wherein performing of the random access procedure comprises:
based on the serving cell being a special cell and an ID of an active DL BWP of the serving cell being is not same as an ID of the active UL BWP of the serving cell:
switching the active DL BWP of the serving cell to a DL BWP of the serving cell with an ID same as the ID of the active UL BWP of the serving cell, and
performing the random access procedure on the switched DL BWP of the serving cell and the active UL BWP of the serving cell, and
based on the serving cell being a secondary cell (SCell):
performing the random access procedure on an active DL BWP of the special cell and the active UL BWP of the serving cell, and
wherein the special cell is a primary cell (Pcell), or a primary secondary cell group cell.