US 12,452,956 B2
Method and apparatus for supporting rapid cell activation in connection resumption procedure in next generation mobile communication system
Donggun Kim, Suwon-si (KR); Anil Agiwal, Suwon-si (KR); Soenghun Kim, 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 Feb. 5, 2024, as Appl. No. 18/433,368.
Application 18/433,368 is a continuation of application No. 16/863,894, filed on Apr. 30, 2020, granted, now 11,895,737.
Claims priority of application No. 10-2019-0051759 (KR), filed on May 2, 2019; application No. 10-2019-0054904 (KR), filed on May 10, 2019; and application No. 10-2019-0097446 (KR), filed on Aug. 9, 2019.
Prior Publication US 2024/0179803 A1, May 30, 2024
Int. Cl. H04W 80/08 (2009.01); H04W 12/10 (2021.01); H04W 28/06 (2009.01); H04W 76/19 (2018.01); H04W 76/27 (2018.01); H04W 76/30 (2018.01)
CPC H04W 80/08 (2013.01) [H04W 12/10 (2013.01); H04W 28/06 (2013.01); H04W 76/19 (2018.02); H04W 76/27 (2018.02); H04W 76/30 (2018.02)] 16 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a first base station, a radio resource control (RRC) message for configuring a dual connectivity (DC) for the terminal, wherein the first base station operates as a master cell group (MCG) of the DC and a second base station operates as a secondary cell group (SCG) of the DC;
receiving, from the first base station, an RRC release message to suspend an RRC connection;
storing a configuration for the MCG and a configuration for the SCG in a terminal context, in case that the RRC connection is suspended;
receiving, from the first base station, an RRC resume message to resume the suspended RRC connection;
in case that the RRC resume message includes first information indicating to maintain the configuration for the SCG, maintaining the configuration for the SCG stored in the terminal context based on the first information; and
in case that the RRC resume message includes second information indicating to maintain a configuration for at least one secondary cell (SCell) of the MCG, maintaining the configuration for the at least one SCell of the MCG stored in the terminal context based on the second information.