US 12,074,705 B2
Method and apparatus for driving PDCP during data decompression failure in next-generation mobile communication system
Donggun Kim, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/783,878
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Nov. 26, 2020, PCT No. PCT/KR2020/016979
§ 371(c)(1), (2) Date Jun. 9, 2022,
PCT Pub. No. WO2021/125610, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10-2019-0167761 (KR), filed on Dec. 16, 2019.
Prior Publication US 2023/0025610 A1, Jan. 26, 2023
Int. Cl. H04L 1/00 (2006.01); H04L 1/1867 (2023.01); H04W 28/02 (2009.01)
CPC H04L 1/0072 (2013.01) [H04L 1/1874 (2013.01); H04W 28/0278 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method performed by a transmission device in a wireless communication system, the method comprising:
identifying whether uplink data compression (UDC) is configured by a radio resource control (RRC) message, in case that Ethernet header compression (EHC) is not configured;
in case that the UDC is configured by the RRC message, transmitting, to a reception device, first data compressed based on the UDC;
pre-processing packet data convergence protocol (PDCP) protocol data units (PDUs) based on a UDC buffer;
receiving, from the reception device, an indicator indicating a checks um failure for decompression of the transmitted first data;
initializing the UDC buffer based on the indicator; and
discarding a PDCP data PDU except for a PDCP control PDU among the pre-processed PDCP PDUs based on the indicator.