US 11,924,742 B2
Method and apparatus for obtaining system information
Sangwon Kim, Seoul (KR); and Youngdae Lee, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 16/610,280
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Apr. 30, 2018, PCT No. PCT/KR2018/004989
§ 371(c)(1), (2) Date Nov. 1, 2019,
PCT Pub. No. WO2018/203633, PCT Pub. Date Nov. 8, 2018.
Claims priority of provisional application 62/492,962, filed on May 2, 2017.
Prior Publication US 2022/0361087 A1, Nov. 10, 2022
Int. Cl. H04W 48/02 (2009.01); H04W 48/16 (2009.01)
CPC H04W 48/02 (2013.01) [H04W 48/16 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for a user equipment (UE) to obtain system information in a wireless communication system, the method comprising:
receiving, by the UE, a Master Information Block (MIB) including parameters that are needed to acquire other information from a first cell on a broadcast channel (BCH),
receiving, by the UE, a System Information Block Type 1 (SIB1) from the first cell, the SIB1 including information for acquiring an on-demand SI;
requesting, by the UE, the on-demand SI to the first cell;
based on the on-demand SI being not received from the first cell in a first specific period of time after the requesting the on-demand SI to the first cell is successful, re-requesting the on-demand SI to the first cell; and
based on the on-demand SI being not received from the first cell in a second specific period of time after a total number of requesting the on-demand SI to the first cell reaches a maximum value, re-selecting a second cell under assumption that the first cell is a barred cell.