Methods of and nodes for selecting a target core network for handing over a voice session of a terminal

摘要

A method of selecting a target core network of a communication network for handing over a voice session of a terminal from a packet switched source radio access network (RAN) to a target RAN. The voice session is anchored in an Internet Protocol Multimedia Subsystem, and the selected target core network includes a circuit switched domain which is associated with the target RAN and supports voice session continuity to hand over the voice session from the source RAN to the target RAN. The target RAN is associated with a network identification of the target core network. The method is executed by a node and includes receiving a network identification of at least one target core network associated with at least one target RAN. The target core network is selected based on an indicated support of voice session continuity by the network identification.

主权项

1. A method in an eNodeB (eNB) for selecting a target Public Land Mobile Network (PLMN) of a communication network for a Single Radio Voice Call Continuity (SRVCC) handover to a target radio access network (RAN), wherein the target RAN supports SRVCC handover, the method comprising:
receiving a Handover Restriction List from an Mobility Management Entity (MME), the Handover Restriction List comprising information indicating PLMNs preferred for SRVCC handover; and selecting the target PLMN based on the Handover Restriction List.