Mobile communication method and mobile communication system

Patent metadata

Field	Value
Publication number	US-9408131-B2
Application number	US-201113701761-A
Country	US
Kind code	B2
Filing date	Mar 17, 2011
Priority date	Jun 4, 2010
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

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.

First claim

The invention claimed is:

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.

2. A mobile communication system for Single Radio Voice Call Continuity (SRVCC), the mobile communication system comprising:
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, wherein
the first mobile station sends a registration request to a control node within the serving network of the first mobile station;
the control node sends the registration request to a Service Centralization and Continuity Application Server (SCC AS);
the SCC AS sends a registration response to the control node;
the control node sends the registration response to the first mobile station;
the first mobile station sends an “INVITE” signal to the control node; and
the control node determines whether to anchor the path based on SRVCC capability of the first mobile station.

3. A communication method for a mobile station comprising:
transmitting a registration request to a control node within a serving network of the mobile station;
receiving a registration response from a Service Centralization and Continuity Application Server (SCC AS) through the control node;
transmitting an “INVITE” signal to the control node; and
controlling the voice communication so that the control node determines whether to anchor a path for voice communication between the mobile station and a communication partner of the mobile station in a gateway with in the serving network of the mobile station for switching the path from a path through the first radio access network to a path through the second radio access network, for Single Radio Call Continuity (SRVCC), based on SRVCC capability of the mobile station.

4. A mobile station comprising:
a memory storing instructions; and
at least one processor configured to process the instructions to:
transmit a registration request to a control node within a serving network of the mobile station;
receive a registration response from a Service Centralization and Continuity Application Server (SCC AS) through the control node;

transmit an “INVITE” signal to the control node; and
control the voice communication so that the control node determines whether to anchor a path for voice communication between the mobile station and a communication partner of the mobile station in a gateway with in the serving network of the mobile station for switching the path from a path through the first radio access network to a path through the second radio access network, for Single Radio Call Continuity (SRVCC), based on SRVCC capability of the mobile station.

5. 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 the steps of:
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 allocate a resource of the gateway based on SRVCC capability of the first mobile station.

6. A communication method for a mobile station 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 the mobile station for switching a path for voice communications between the mobile station and a communication partner of the mobile station, from a path through the first radio access network, to a path through the second radio access network, the communication method comprising:
transmitting, by the first mobile station, a registration request to a control node within the serving network of the first mobile station;
transmitting, by the control node, the registration request to a Service Centralization and Continuity Application Server (SCC AS);
transmitting, by the SCC AS, a registration response to the control node;
transmitting, by the control node, the registration response to the first mobile station;
transmitting an “INVITE” signal to the control node; and
controlling the voice communication so that the control node determines whether to allocate a resource of the gateway based on SRVCC capability of the mobile station.

7. A mobile communication method for a mobile station comprising:
transmitting a registration request to a control node within a serving network of the mobile station;
receiving a registration response from a Service Centralization and Continuity Application Server (SCC AS) through the control node;
transmitting an “INVITE” signal to the control node; and
controlling the voice communication so that the control node determines whether to allocate a resource of a gateway with in the serving network of the mobile station for switching a path for voice communication between the mobile station and a communication partner of the mobile station, from a path through the first radio access network to a path through the second radio access network, for Single Radio Call Continuity (SRVCC), based on SRVCC capability of the mobile station.

8. A mobile station comprising:
a memory storing instructions; and
at least one processor configured to process the instructions to:
transmit a registration request to a control node within a serving network of the mobile station;
receive a registration respon

Assignees

• Nishida Katsutoshi
• Tamura Toshiyuki
• Nec Corp

Inventors

• Nishida Katsutoshi
• Tamura Toshiyuki

Classifications

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04M7/1205

  where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks · CPC title

• H04W40/02 Primary

  Communication route or path selection, e.g. power-based or shortest path routing · CPC title

• H04M2207/187

  combining circuit and packet-switched, e.g. GPRS · CPC title

• H04L65/1086

  session scope modification · CPC title