Patent ID: 11968618
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 3:
4. A mobility node in a communications network comprising: a processing unit; and a memory, said memory containing instructions executable by said processing unit, whereby said mobility node is operative to:
receive a create bearer request from a gateway node for a subsequent establishment of a bearer with the mobile terminal;
determine that a mobile terminal is non-reachable due to being in a long Discontinuous Reception and Transmission, DRX cycle or being in a power saving state;
send a Create Bearer response to the gateway node indicating that the mobile terminal is in the long DRX cycle or in the power saving state and not yet capable of replying to the message; receive a service request from the mobile terminal as a control plane signal;
send, in response to the service request, a modify bearer request to the gateway node which modify bearer request comprises an indication indicating that the mobile terminal is now reachable and capable of responding to a message for establishing a bearer;
store the response; and
forward the stored response to another serving mobility node when the mobile terminal changes to said another serving mobility node.