US 9,813,427 B2
Method for detecting security error in mobile telecommunications system and device of mobile telecommunications
Seung June Yi, Gyeonggi-do (KR); Sung Jun Park, Gyeonggi-do (KR); Young Dae Lee, Gyeonggi-do (KR); and Sung Duck Chun, Gyeonggi-do (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Sep. 14, 2015, as Appl. No. 14/852,960.
Application 14/852,960 is a continuation of application No. 14/833,526, filed on Aug. 24, 2015.
Application 14/833,526 is a continuation of application No. 14/585,710, filed on Dec. 30, 2014, granted, now 9,167,433.
Application 14/585,710 is a continuation of application No. 14/203,287, filed on Mar. 10, 2014, granted, now 8,989,382, issued on Mar. 24, 2015.
Application 14/203,287 is a continuation of application No. 13/541,574, filed on Jul. 3, 2012, granted, now 8,712,055, issued on Apr. 29, 2014.
Application 13/541,574 is a continuation of application No. 12/667,860, granted, now 8,243,931, issued on Aug. 14, 2012, previously published as PCT/KR2008/004514, filed on Aug. 4, 2008.
Claims priority of provisional application 60/955,040, filed on Aug. 10, 2007.
Claims priority of application No. 10-2008-0071933 (KR), filed on Jul. 23, 2008.
Prior Publication US 2016/0006748 A1, Jan. 7, 2016
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 12/06 (2009.01); H04L 29/06 (2006.01); H04L 1/00 (2006.01); H04L 12/703 (2013.01); H04W 12/10 (2009.01); H04L 12/939 (2013.01); H04W 76/02 (2009.01); G06F 11/10 (2006.01); H04W 12/02 (2009.01)
CPC H04L 63/123 (2013.01) [G06F 11/1004 (2013.01); H04L 1/0061 (2013.01); H04L 45/28 (2013.01); H04L 49/552 (2013.01); H04L 49/555 (2013.01); H04L 69/22 (2013.01); H04W 12/06 (2013.01); H04W 12/10 (2013.01); H04W 76/027 (2013.01); H04W 76/028 (2013.01); H04W 12/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An apparatus in a mobile communication system, the apparatus comprising:
a receiver configured to receive at least one packet data convergence protocol (PDCP) data unit; and
a controller operatively connected to the receiver and configured to:
perform, by a PDCP entity, an integrity check on the at least one PDCP data unit,
identify, by the PDCP entity, an integrity check failure with regard to the at least one PDCP data unit; and
perform, by a radio resource control (RRC) entity, a re-establishment procedure if the integrity check failure is identified to exist with regard to the at least one PDCP data unit,
wherein the re-establishment procedure comprises at least re-establishing a radio bearer (RB), resetting a security configuration with respect to a particular RB, or re-establishing a PDCP layer.