Patent ID: 8782253

Claim:
A method performed by a server device in a long term evolution (LTE) network, the method comprising: storing, in a memory associated with the server device, context information, associated with a prior communication session between the LTE network and a user device, the context information to be stored for a set retention time that is based on a first quality of service (QoS) subscription corresponding to the user device, the set retention time being longer than another retention time associated with another QoS subscription; receiving, by the server device, a registration request associated with the user device; determining, by the server device and in response to the registration request, whether the context information is retained in the memory; performing, by the server device and within the set retention time, an abbreviated registration operation to establish the communication session with the user device, using the context information retained in the memory; erasing, from the memory, the context information after the set retention time; and performing, by the server device and outside of the set retention time, an unabbreviated registration operation to establish the communication session when the context information is not retained in the memory.