US 11,751,271 B2
Method and device for re-establishing PDCP in wireless communication system
Seungri Jin, Suwon-si (KR); Alexander Sayenko, Seoul (KR); Soenghun Kim, Suwon-si (KR); and Donggun Kim, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Apr. 7, 2022, as Appl. No. 17/715,839.
Application 17/715,839 is a continuation of application No. 16/638,085, previously published as PCT/KR2018/009121, filed on Aug. 9, 2018.
Claims priority of application No. 10-2017-0101945 (KR), filed on Aug. 10, 2017.
Prior Publication US 2022/0232657 A1, Jul. 21, 2022
Int. Cl. H04W 76/19 (2018.01); H04W 76/27 (2018.01); H04W 36/08 (2009.01); H04W 80/08 (2009.01)
CPC H04W 76/19 (2018.02) [H04W 36/08 (2013.01); H04W 76/27 (2018.02); H04W 80/08 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, a radio resource control (RRC) message to configure at least one secondary cell (SCell) for the terminal;
receiving, from the base station, an RRC release message indicating a configuration for an RRC inactive state of the terminal;
storing configuration information on the at least one SCell for the terminal based on the RRC release message;
entering the RRC inactive state from an RRC connected state based on the first RRC release message;
receiving, from the base station, an RRC resume message to resume an RRC connection;
identifying whether the RRC resume message includes information for a configuration of the at least one SCell;
maintaining the at least one SCell, in case that the RRC resume message includes the information for the configuration of the at least one SCell; and
entering the RRC connected state from the RRC inactive state based on the RRC resume message.