US 12,232,220 B2
Method and apparatus for transmitting packet in wireless communication system
Sangkyu Baek, Suwon-si (KR); and Hyunjeong Kang, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Apr. 7, 2023, as Appl. No. 18/297,395.
Application 18/297,395 is a continuation of application No. 16/571,821, filed on Sep. 16, 2019, abandoned.
Claims priority of application No. 10-2018-0110469 (KR), filed on Sep. 14, 2018.
Prior Publication US 2023/0247722 A1, Aug. 3, 2023
Int. Cl. H04W 80/08 (2009.01); H04L 1/1607 (2023.01); H04W 4/40 (2018.01); H04W 28/06 (2009.01); H04W 80/02 (2009.01)
CPC H04W 80/08 (2013.01) [H04L 1/1642 (2013.01); H04W 4/40 (2018.02); H04W 28/06 (2013.01); H04W 80/02 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method, performed by a terminal in a wireless communication system, the method comprising:
receiving, from a transmission entity, packet data convergence protocol (PDCP) data, wherein the PDCP data is first received after the terminal enters a reception-enabled zone;
identifying whether no PDCP data related to a radio bearer is received during a time period up to a time when the PDCP data is received, wherein the radio bearer is associated with the transmission entity;
in case that no PDCP data related to the radio bearer is received during the time period, starting a PDCP reordering timer; and
in case that a value of a sequence number (SN) of the received PDCP data is not set to 0,
setting a value of a Next_PDCP_RX_SN variable, which indicates a predicted SN of PDCP data to be received, to a value associated with adding a first setting value to the value of the SN of the received PDCP data, wherein the first setting value is 1, and
setting a value of a Last_Submitted_PDCP_RX_SN variable, which indicates an SN of last PDCP data transferred to an upper layer, to a value associated with subtracting a second setting value from the value of the SN of the received PDCP data, wherein the second setting value is greater than 1.