US 12,219,411 B2
Method for performing a cell change procedure in a wireless communication system and a device therefor
Seungjune Yi, Seoul (KR); Sunyoung Lee, Seoul (KR); Youngdae Lee, Seoul (KR); and Sungjun Park, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jun. 23, 2022, as Appl. No. 17/847,695.
Application 17/847,695 is a continuation of application No. 16/986,951, filed on Aug. 6, 2020, granted, now 11,405,832.
Application 16/986,951 is a continuation of application No. 16/059,574, filed on Aug. 9, 2018, granted, now 10,785,690, issued on Sep. 22, 2020.
Application 16/059,574 is a continuation of application No. 14/771,385, granted, now 10,075,881, issued on Sep. 11, 2018, previously published as PCT/KR2014/002270, filed on Mar. 18, 2014.
Claims priority of provisional application 61/807,337, filed on Apr. 2, 2013.
Prior Publication US 2022/0330103 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 36/00 (2009.01); H04W 36/04 (2009.01); H04W 36/08 (2009.01)
CPC H04W 36/0061 (2013.01) [H04W 36/0072 (2013.01); H04W 36/04 (2013.01); H04W 36/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a network in a wireless communication system, the method comprising:
transmitting a radio resource control (RRC) message to a wireless device, wherein the RRC message comprising an identifier of a radio bearer, and information requesting the wireless device to perform a first operation regarding an RLC entity and a second operation regarding an PDCP entity;
wherein the first operation is for an RLC reestablishment of the radio bearer, the first operation comprising (i) stopping and resetting RLC-related timers, and (ii) resetting RLC-related state variables to their initial values; and
wherein the second operation comprises one of (i) retransmission of PDCP data units for which successful delivery has not been confirmed, or (ii) transmission of a PDCP status report, for the radio bearer without a PDCP-related security key change.