US 12,432,814 B2
Method and apparatus for handling integrity verification failure in system supporting high-reliability, low-latency service
Donggun Kim, Suwon-si (KR); and Soenghun Kim, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/630,699
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Aug. 6, 2020, PCT No. PCT/KR2020/010436
§ 371(c)(1), (2) Date Jan. 27, 2022,
PCT Pub. No. WO2021/025504, PCT Pub. Date Feb. 11, 2021.
Claims priority of application No. 10-2019-0095433 (KR), filed on Aug. 6, 2019.
Prior Publication US 2022/0264387 A1, Aug. 18, 2022
Int. Cl. H04W 76/34 (2018.01); H04W 36/00 (2009.01); H04W 36/08 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 76/34 (2018.02) [H04W 36/00692 (2023.05); H04W 36/085 (2023.05); H04W 74/0833 (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 first message for releasing dual connectivity;
receiving, from the first base station, a second message for a handover from the first base station to a second base station;
configuring a dual active protocol entity for the second base station based on the second message for the handover;
performing a random access procedure with the second base station;
transmitting, to the first base station, uplink data until a first condition is satisfied, and in case that the first condition is satisfied, switching uplink data transmission to the second base station, wherein the first condition is related to a completion of the random access procedure with the second base station; and
receiving, from the first base station, downlink data until a second condition is satisfied, wherein the second condition is related to a releasing a connection with the first base station.