METHOD AND DEVICE FOR TRANSFERRING AND RECEIVING MESSAGE IN ROAMING SYSTEM

• US 20150106454A1
• Filed: 03/18/2013
• Published: 04/16/2015
• Est. Priority Date: 03/19/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lim, Han Na, Jeong, Sang Soo, Cho, Song Yean, Bake, Young Kyo
• Granted Patent: US 9,912,626 B2
• Time in Patent Office: Days
• US Class Current: 709/206
• CPC Class Codes: H04L 51/18 Commands or executable codes
• CPC Class Codes: H04M 15/57 for integrated multimedia messaging subsystem [IMS]
• CPC Class Codes: H04M 15/66 Policy and charging system
• CPC Class Codes: H04M 15/8038 Roaming or handoff
• CPC Class Codes: H04W 8/02 Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
• CPC Class Codes: H04W 8/18 Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
• CPC Class Codes: H04W 8/20 Transfer of user or subscriber data

Abstract

A method of transferring and receiving data by a mobility management entity (MME) in a mobile communication system according to an embodiment of the present invention includes receiving, from equipment, a message that includes the address of an XML configuration access protocol (XCAP) and is used to access an Internet packet data network (PDN); checking any one of subscription information on the equipment and a network carrier policy, on the basis of the received message; and delivering a create session request message to a gateway on the basis of the received message if the equipment is accessible to the PDN as the result of the check, wherein the create session request message includes an indicator that accesses the XCAP server. according to an embodiment, roaming equipment may transfer and receive an XCAP related message. Moreover, as the roaming equipment receives the XCAP related message, the present invention has an effect of being able to prevent undesired traffic due to another data packet from occurring.

Claims

1. A data communication method of a Mobility Management Entity (MME) of a mobile communication system, the method comprising:

receiving a message for connecting to an Internet Packet Data Network (PDN) including a XML Configuration Access Protocol (XCAP) address from a terminal;

checking at least one of subscription information of the terminal and network operator policy based on the received message; and

transmitting, when the terminal is allowed for access to the Internet PDN as a result of checking, a Create Session Request message generated based on the received message to a gateway,

wherein the Create Session Request message includes an indicator notifying of connection to a XCAP server.

2. The method of claim 1, further comprising receiving a Session Update Request message from the gateway,

wherein the Session Update Request message includes a Traffic Flow Template (TFT) having at least one packet filter which passes only packets addressed to the XCAP server.

3. The method of claim 2, wherein the packet filter is generated according to a Policy and Charging Control (PCC) rule determined by a Policy Charging and Rules Function (PCRF) and installed at least one of a PDN Gateway (PGW) and the terminal.

4. A data communication method of a terminal of a mobile communication system, the method comprising:

transmitting a message for connecting to an Internet Packet Data Network (PDN) to a Mobility Management Entity (MME), the message including an XML Configuration Access Protocol (XCAP) address; and

performing RRC Connection Reconfiguration with a base station based on the message,

wherein the MME checks at least one of subscription information of the terminal and network operator policy based on the received message and transmits, when the terminal is allowed for access to the Internet PDN as a result of checking, a Create Session Request message generated based on the received message to a gateway, the Create Session Request message including an indicator notifying of connection to a XCAP server.

5. The method of claim 4, wherein performing the RRC Connection Reconfiguration comprises:

receiving a Traffic Flow Template (TFT) including at least one packet filter generated based on the message, the packet filter passing only packets addressed to the XCAP server.

6. The method of claim 5, wherein the packet filter is generated according to a Policy and Charging Control (PCC) rule determined by a Policy Charging and Rules Function (PCRF) and installed at least one of a PDN Gateway (PGW) and the terminal.

7. A data communication method of a terminal in a mobile communication system, the method comprising:

determining whether the terminal is allowed to connect to an XML Configuration Access Protocol (XCAP) server;

determining, when the terminal is allowed to connect to the XCAP server, whether an address of the XCAP server is stored in the terminal;

inserting, when the address of the XCAP server is stored, the address of the XCAP server into a routing table; and

locking the routing table to prevent other routing paths from being added to the routing table.

8. The method of claim 7, further comprising notifying, when the terminal is not allowed to connect to the XCAP server, a user that XCAP-related services cannot be used.

9. The method of claim 7, further comprising acquiring, when the address of the XCAP server is not stored, the address of the XCAP server from an IP Multimedia Subsystem (IMS) Packet Data network (PDN).

10. The method of claim 7, further comprising dropping, when a packet addressed to an entity other than the XCAP server is generated, the packet according to the routing table.

11. A data communication method of a terminal in a roaming network of a mobile communication system, the method comprising:

transmitting a REGISTER message to a Proxy Call Session Control Function (PCSCF) of the roaming network;

receiving a first 200OK message in response to the REGISTER message; and

transmitting a message including XML Configuration Access Protocol (XCAP) information to the PCSCF,

wherein the message including the XCAP information is one of INVITE message and ‘

MESSAGE’

message, a Serving Call State Control Function (SCSCF) receives subscriber information from a Home Subscriber Server (HSS) based on the REGISTER message, and the 200OK message includes the received subscriber information.

12. The method of claim 11, further comprising receiving a second 200OK message including a value determined based on the XCAP information.

13. The method of claim 11, wherein one of the INVITE message and ‘

MESSAGE’

message includes at least one of information notifying that a recipient of the message is a XCAP server, information notifying that payload of the message contains a XCAP message, and information notifying that an INFO package supported by the terminal is a XCAP-related type.

14. A data communication method of a XML Configuration Access Protocol (XCAP) server in n home network of a mobile communication system, the method comprising:

receiving a REGISTER message transmitted by a terminal which is in a roaming network, the message being relayed by a Serving Call State Control Function (SCSCF);

receiving one of an INVITE message and ‘

MESSAGE’

message including XCAP-related information from the terminal;

performing an operation indicated by the XCAP-related information included in one of the INVITE message and ‘

MESSAGE’

message; and

transmitting the message including an operation result value to the SCSCF.

15. A data communication method of a terminal in a roaming network of a mobile communication system, the method comprising:

transmitting one of an INVITE message and ‘

MESSAGE’

message including XCAP-related information; and

receiving a message including a result value in response to one of the INVITE message and ‘

MESSAGE’

message from a XCAP server.