US 11,658,722 B2
Method and apparatus for managing user plane operation in wireless communication system
Anil Agiwal, Suwon-si (KR); and Mangesh Abhimanyu Ingale, Karnataka (IN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Sep. 2, 2021, as Appl. No. 17/465,701.
Application 17/465,701 is a continuation of application No. 17/027,510, filed on Sep. 21, 2020, granted, now 11,115,105.
Application 17/027,510 is a continuation of application No. 16/588,820, filed on Sep. 30, 2019, granted, now 10,784,949, issued on Sep. 22, 2020.
Application 16/588,820 is a continuation of application No. 15/673,287, filed on Aug. 9, 2017, granted, now 10,432,291, issued on Oct. 1, 2019.
Claims priority of application No. 201641027192 (IN), filed on Aug. 9, 2016; application No. 201641027192 (IN), filed on Aug. 9, 2016; and application No. 201741015620 (IN), filed on May 3, 2017.
Prior Publication US 2021/0399786 A1, Dec. 23, 2021
Int. Cl. H04W 4/00 (2018.01); H04B 7/06 (2006.01); H04W 76/19 (2018.01); H04W 12/04 (2021.01); H04W 80/02 (2009.01); H04W 12/033 (2021.01); H04M 3/42 (2006.01); H04M 3/537 (2006.01); H04W 24/02 (2009.01); H04W 48/16 (2009.01); H04W 88/02 (2009.01); H04B 7/0408 (2017.01); H04B 7/10 (2017.01); H04M 3/54 (2006.01)
CPC H04B 7/0697 (2013.01) [H04M 3/42229 (2013.01); H04M 3/537 (2013.01); H04W 12/033 (2021.01); H04W 12/04 (2013.01); H04W 24/02 (2013.01); H04W 48/16 (2013.01); H04W 76/19 (2018.02); H04W 80/02 (2013.01); H04B 7/0408 (2013.01); H04B 7/10 (2013.01); H04M 3/54 (2013.01); H04W 88/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE), the method comprising:
receiving, from a base station, a radio resource control (RRC) reconfiguration message; and
identifying whether the RRC reconfiguration message includes a packet data convergence protocol (PDCP) re-establishment indicator to perform a PDCP re-establishment for a data radio bearer (DRB);
if the RRC reconfiguration message includes the PDCP re-establishment indicator, performing the PDCP re-establishment; and
if the RRC reconfiguration message does not include the PDCP re-establishment indicator, performing, based on a retransmission indication, a retransmission of PDCP data for the DRB that have not been acknowledged.