Patent ID: 11864035
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A method for a handover procedure, comprising:
determining that a user equipment is going to perform a handover from a source network node of a first core network type to a target network node of a second core network type, wherein the source network node and the target network node use a first radio access technology (RAT) and the second core network type is different than the first core network type;
sending a radio resource control (RRC) message including an information element to the user equipment, wherein the information element indicates the second core network type associated with the target network node; and
performing the handover towards the target network node wherein security parameters applied during the handover are based on the second core network type.