US 11,743,789 B2
Method and apparatus for supporting light connection in next generation mobile communication systems
Donggun Kim, Seoul (KR); Seungri Jin, Gyeonggi-do (KR); Alexander Sayenko, Seoul (KR); Soenghun Kim, Gyeonggi-do (KR); Gert Jan Van Lieshout, Apeldoorn (NL); Sangkyu Baek, Gyeonggi-do (KR); and Jaehyuk Jang, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Jan. 19, 2022, as Appl. No. 17/578,958.
Application 17/578,958 is a continuation of application No. 17/012,544, filed on Sep. 4, 2020, granted, now 11,265,784.
Application 17/012,544 is a continuation of application No. 15/861,129, filed on Jan. 3, 2018, granted, now 10,772,017, issued on Sep. 8, 2020.
Claims priority of application No. 10-2017-0000623 (KR), filed on Jan. 3, 2017.
Prior Publication US 2022/0141741 A1, May 5, 2022
Int. Cl. H04L 1/18 (2023.01); H04W 36/08 (2009.01); H04W 74/08 (2009.01); H04W 36/00 (2009.01); H04W 72/23 (2023.01)
CPC H04W 36/08 (2013.01) [H04W 36/0066 (2013.01); H04W 72/23 (2023.01); H04W 74/0833 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, by a medium access control (MAC) layer, from a radio link control (RLC) layer, a MAC service data unit (SDU) including an RLC header, a packet data convergence protocol (PDCP) header, and a PDCP payload;
receiving, by the MAC layer, from the RLC layer, information on an expiry of a timer corresponding to the MAC SDU;
in case that the MAC SDU is stored with a MAC subheader and the MAC SDU is considered expired based on the information, generating a MAC protocol data unit (PDU) by discarding the MAC subheader and the PDCP payload part from the MAC SDU, and updating the MAC subheader based on the PDCP header and the RLC header; and
transmitting, by the MAC layer, to a lower layer, the MAC PDU including the updated MAC subheader, the RLC header, and the PDCP header.