US 12,262,199 B2
Method and apparatus for implementing bearer specific changes as part of a connection reconfiguration that impacts the security keys being used
Prateek Basu Mallick, Langen (DE); Joachim Löhr, Wiesbaden (DE); and Ravi Kuchibhotla, Clarendon Hills, IL (US)
Assigned to Motorola Mobility LLC, Chicago, IL (US)
Filed by Motorola Mobility LLC, Chicago, IL (US)
Filed on May 9, 2023, as Appl. No. 18/195,107.
Application 18/195,107 is a continuation of application No. 17/169,449, filed on Feb. 6, 2021, granted, now 11,689,917.
Application 17/169,449 is a continuation of application No. 16/016,592, filed on Jun. 23, 2018, granted, now 10,917,785, issued on Feb. 9, 2021.
Claims priority of provisional application 62/543,817, filed on Aug. 10, 2017.
Claims priority of provisional application 62/524,379, filed on Jun. 23, 2017.
Prior Publication US 2023/0276233 A1, Aug. 31, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 29/06 (2006.01); H04L 9/08 (2006.01); H04W 12/041 (2021.01); H04W 12/043 (2021.01); H04W 76/25 (2018.01); H04W 36/00 (2009.01); H04W 76/22 (2018.01)
CPC H04W 12/041 (2021.01) [H04L 9/0819 (2013.01); H04W 12/043 (2021.01); H04W 76/25 (2018.02); H04L 2209/80 (2013.01); H04W 36/0038 (2013.01); H04W 76/22 (2018.02)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a processor; and
a memory coupled to the processor, the processor configured to cause the apparatus to:
apply a first security key for a first cell group, wherein a first medium access control (MAC) entity of the apparatus is associated with the first cell group;
apply a second security key for a second cell group, wherein a second MAC entity of the apparatus is associated with the second cell group;
receive a second reconfiguration message indicating a counter including a value for deriving at least in part a third security key for the second cell group; and
apply the derived third security key for the second cell group, wherein the apparatus continues to use the first security key for the first cell group, and wherein the first MAC entity is not reset.