US RE50,334 E1
Method for synchronizing encryption information between SCell and UE
Hong Wang, Beijing (CN); Lixiang Xu, Beijing (CN); and Huarui Liang, Beijing (CN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on May 13, 2020, as Appl. No. 15/931,232.
Application 15/931,232 is a continuation of application No. 14/758,019, granted, now 9,736,687, previously published as PCT/KR2013/012376, filed on Dec. 30, 2013.
Application 15/931,232 is a reissue of application No. 15/676,386, filed on Aug. 14, 2017, granted, now 10,129,742, issued on Nov. 13, 2018.
Claims priority of application No. 201210585571.7 (CN), filed on Dec. 28, 2012.
Int. Cl. H04L 5/00 (2006.01); H04L 9/40 (2022.01); H04W 12/04 (2021.01); H04W 56/00 (2009.01); H04W 76/27 (2018.01)
CPC H04L 5/0032 (2013.01) [H04W 12/04 (2013.01); H04W 56/00 (2013.01); H04W 76/27 (2018.02); H04L 63/068 (2013.01)] 5 Claims
OG exemplary drawing
 
[ 25. A method performed by a first base station, the method comprising:
transmitting, to a second base station, a request message for adding at least one cell associated with the second base station for a user equipment (UE), wherein the request message is for the UE to communicate with both the first base station and the second base station;
receiving, from the second base station, a response message as a response to the request message;
receiving, from the second base station, a first message including first count values associated with a radio bearer established for the UE, wherein the first count values include an uplink count value and a downlink count value;
transmitting, to the UE, a second message including highest 25 bits of the uplink count value and highest 25 bits of the downlink count value obtained from the first count values;
receiving, from the UE, a third message as a response to the second message;
identifying that the third message includes second count values associated with the radio bearer, wherein the second count values are different from the first count values; and
releasing a radio connection associated with the UE based on the third message including the second count value associated with the radio bearer.]