Mobile communication method and mobile communication system

摘要

A mobile communication method according to the present invention includes the steps of: sending “INVITE” from a UE#1 to a P-CSCF/VATF in a visited network of the UE#1; sending “INVITE” from the P-CSCF/VATF to an IMS; and allocating, by the P-CSCF/VATF, an MGW#1 to the path for voice communications.

主权项

1. A mobile communication method in a mobile communication system for Single Radio Voice Call Continuity (SRVCC) including a first radio access network that does not support circuit-switched communications, a second radio access network that supports the circuit-switched communications, and a gateway within a serving network of a first mobile station for switching a path for voice communications between the first mobile station and a second mobile station, from a path through the first radio access network to a path through the second radio access network, the mobile communication method comprising:
sending, by the first mobile station, a registration request to a control node within the serving network of the first mobile station; sending, by the control node, the registration request to a Service Centralization and Continuity Application Server (SCC AS); sending, by the SCC AS, a registration response to the control node; sending, by the control node, the registration response to the first mobile station; sending, by the first mobile station, an “INVITE” signal to the control node; and determining, by the control node, whether to anchor the path based on SRVCC capability of the first mobile station.