US 11,924,747 B2
Method and device for supporting multiple SCG configurations in dual connectivity supported by next-generation mobile communication system
Donggun Kim, 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 Aug. 4, 2021, as Appl. No. 17/393,717.
Claims priority of application No. 10-2020-0098084 (KR), filed on Aug. 5, 2020.
Prior Publication US 2022/0046522 A1, Feb. 10, 2022
Int. Cl. H04W 4/00 (2018.01); H04W 48/16 (2009.01); H04W 52/36 (2009.01)
CPC H04W 48/16 (2013.01) [H04W 52/365 (2013.01)] 20 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 including configuration information for a secondary cell group (SCG) including at least one serving cell associated with a second base station, wherein the RRC message is for activation or deactivation of the SCG; and
in case that the SCG activation is indicated by the RRC message and in case that a timer associated with an uplink time alignment is not running, performing a random access procedure for activation of the SCG.