US 12,471,010 B2
Method and apparatus for base station to control cell access of reduced capability terminal in mobile wireless communication system
Soenghun Kim, Hanam-si (KR)
Assigned to BLACKPIN INC., Seoul (KR); and Soenghun Kim, Gyeonggi-do (KR)
Filed by BLACKPIN INC., Seoul (KR)
Filed on Aug. 4, 2022, as Appl. No. 17/881,528.
Claims priority of application No. 10-2021-0119169 (KR), filed on Sep. 7, 2021.
Prior Publication US 2023/0075586 A1, Mar. 9, 2023
Int. Cl. H04W 48/16 (2009.01); H04W 48/20 (2009.01)
CPC H04W 48/16 (2013.01) [H04W 48/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method performed by a terminal, the method comprising:
receiving by the terminal in a cell a system information, wherein the system information comprises a set of random access parameters, wherein the set of random access parameters comprises at least a first set of preamble parameters or a second set of preamble parameters;
selecting by the terminal a preamble; and
performing by the terminal transmission of the preamble based on:
a parameter related to preamble subcarrier spacing; and
a parameter related to preamble selection threshold,
wherein performing transmission of the preamble comprises:
applying the parameter related to preamble subcarrier spacing in the first set of preamble parameters and the parameter related to preamble selection threshold in the second set of preamble parameters to transmission of the preamble in case that the set of random access parameters comprises the second set of preamble parameters; and
applying the parameter related to preamble subcarrier spacing in the first set of preamble parameters and the parameter related to preamble selection threshold in the first set of preamble parameters to transmission of the preamble in case that the set of random access parameters does not comprise the second set of preamble parameters.