KR101652642B1

KR101652642B1 - Apparatus and Method for providing VoLTE Roaming Service

Info

Publication number: KR101652642B1
Application number: KR1020150081932A
Authority: KR
Inventors: 박상길; 이슬기; 최보현; 문종환
Original assignee: 주식회사 엘지유플러스
Priority date: 2015-06-10
Filing date: 2015-06-10
Publication date: 2016-08-30

Abstract

The present invention also relates to an apparatus and method for providing a VoLTE roaming service to a data roaming blocking subscriber, and a method for providing a VoLTE roaming service to a data roaming blocking subscriber according to an aspect of the present invention includes: Home Subscriber Server) comprising the steps of: (a) storing first subscriber information for blocking a data roaming service and providing a VoLTE roaming service; And (b) upon receipt of an LTE location registration message from a terminal of a VoLTE roaming subscriber, if the VoLTE roaming subscriber is a subscriber of the stored first subscriber information, to permit LTE location registration in response to the LTE location registration message The method may include transmitting an LTE Location Registration Response message to the terminal of the VoLTE roaming subscriber, wherein the first information and data roaming service is blocked and includes second information for providing a VoLTE roaming service.

Description

[0001] Apparatus and method for providing VoLTE roaming service for data roaming blocking subscribers [0002]

The present invention relates to a technology for providing a VoLTE roaming service to a VoLTE foreign roaming subscriber, and more particularly, to an apparatus and a method for providing a VoLTE roaming service to a data roaming blocking subscriber.

Generally, in order to process subscriber authentication and location registration for mobile data communication of an LTE terminal simultaneously supporting various heterogeneous networks such as 3GPP (WCDMA, LTE) and Non-3GPP (eHRPD, WLAN) ).

However, since LTE / VoLTE service is not provided in most countries or service is provided in some regions / operators, it is necessary for the subscriber to manage the registration state for providing VoLTE service when roaming abroad. However, Of the VoLTE service is not provided. In particular, it is desired to block the data service costing most roaming overseas and selectively receive the voice call. There has been a problem that the roaming data service is blocked and the VoLTE roaming service is selectively provided only when roaming overseas.

Published Patent Publication No. 10-2014-0110567 (published on September 17, 2014)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is an object of the present invention to provide an apparatus and a method for providing a VoLTE roaming service to a data roaming blocking subscriber.

In order to achieve the above object, an apparatus for providing a VoLTE roaming service to a data roaming-blocking subscriber according to an aspect of the present invention is an apparatus included in an HSS (Home Subscriber Server) of a domestic network, A VoLTE roaming service comprising: a storage for storing first subscriber information for providing; And when receiving the LTE location registration message from the terminal of the VoLTE roaming subscriber, when the VoLTE roaming subscriber is the subscriber of the stored first subscriber information, the first information for permitting LTE location registration in response to the LTE location registration message And a controller for transmitting an LTE location registration response message including second information for blocking the data roaming service and providing the VoLTE roaming service to the LTE network of the foreign network to which the VoLTE roaming subscriber belongs.

According to another aspect of the present invention, there is provided a method for providing a VoLTE roaming service to a data roaming-blocking subscriber in a home subscriber server (HSS) of a domestic network, the method comprising the steps of: (a) Storing first subscriber information for blocking and providing a VoLTE roaming service; And (b) upon receipt of an LTE location registration message from a terminal of a VoLTE roaming subscriber, if the VoLTE roaming subscriber is a subscriber of the stored first subscriber information, to permit LTE location registration in response to the LTE location registration message The first information and data roaming service may be blocked and an LTE location registration response message including second information for providing a VoLTE roaming service may be transmitted to an LTE network of the foreign network to which the VoLTE roaming subscriber belongs .

Wherein the LTE location registration message comprises an Update Location Request (ULR) message and the LTE location registration response message comprises an Update Location Answer (ULA) message, the second information includes an APN for VoLTE roaming ) Information.

According to another aspect of the present invention, there is provided a computer readable recording medium storing a program for causing a computer to execute a method for providing a VoLTE roaming service to a data roaming blocking subscriber, have.

According to another aspect of the present invention, an application stored in a medium may be provided in order to execute a method for providing a VoLTE roaming service to the data roaming blocking subscriber in combination with hardware.

According to another aspect of the present invention, there is provided a computer program stored in a medium for causing a computer to execute a method for providing a VoLTE roaming service to the data roaming blocking subscriber.

As described above, according to various aspects of the present invention, a VoLTE roaming service can be provided to a data roaming-blocking subscriber.

In other words, it is possible to store and manage VoLTE roaming service subscription for each subscriber in HSS. In order to provide VoLTE roaming service even though it is a data roaming-blocking subscriber, location LTE location registration is permitted but only VoLTE APN is provided (data APN is not provided) Finally, PDN for data roaming is not opened and only PDL for VoLTE is opened, so that the user can not use the data roaming service but can use only VoLTE voice.

Brief Description of the Drawings Fig. 1 is a schematic configuration diagram of a communication system for explaining an embodiment of the present invention; Fig.
2 is a configuration diagram of an apparatus for providing a VoLTE roaming service to a data roaming blocking subscriber according to an embodiment of the present invention;
3 is a flowchart of a method for providing a VoLTE roaming service to a data roaming blocking subscriber according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals are used to denote like elements in the drawings, even if they are shown in different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a schematic configuration of a communication system for explaining an embodiment of the present invention. As shown in FIG. 1, a VoLTE subscriber terminal 1 and a subscriber terminal 1 are connected to an HSS 20 And an overseas network 3 connected to the domestic network 2 in connection with the outbound roaming of the subscriber terminal 1.

FIG. 2 is a block diagram illustrating an apparatus for providing a VoLTE roaming service to a data roaming-blocking subscriber according to an exemplary embodiment of the present invention. The apparatus may be included in the HSS 20 shown in FIG. 1, Likewise, it may include a storage unit 21 and a control unit 22.

The storage unit 21 stores first subscriber information for blocking the data roaming service and providing the VoLTE roaming service. For example, in the customer information provisioned from the business computing server (IT), the data roaming service is blocked And stores and manages information about a customer who intends to use only VoLTE roaming service as first subscriber information.

When the LTE location registration message is received from the terminal 1 of the VoLTE roaming subscriber belonging to the foreign network 3 and the LTE location registration message is received, the control unit 22 transmits the corresponding VoLTE roaming subscriber of the received LTE location registration message to the storage unit 20, a first information and data roaming service for allowing LTE location registration in response to the received LTE location registration message is blocked and a VoLTE roaming service is provided for providing a VoLTE roaming service 2 information to the terminal 1 of the VoLTE roaming subscriber, that is, to the LTE network of the foreign network 3 to which the subscriber terminal 1 belongs.

In this embodiment, the LTE location registration message may include an Update Location Request (ULR) message and the LTE location registration response message may include an Update Location Answer (ULA) message.

In a mobile communication system, a packet data network (PDN) connection is generated according to the purpose of packet data to be transmitted and received by a mobile station, and a bearer is generated in the PDN connection to transmit a packet. For example, in order to utilize IMS (Internet Protocol Multimedia Subsystem) service to provide an operator-operated service, a connection to a packet data network in which IMS-related servers exist must be created. In order to use a specific corporate network service to provide a service, a connection with a packet data network in which a server capable of a VPN (Virtual Private Network) connection exists is created. In order to create a connection to the packet data network suitable for the purpose in the network, an APN (Access Point Name) which is a packet network distinguisher is utilized.

Accordingly, in the present embodiment, the control unit 22 excludes APN information for data communication from among all APN (Access Point Name) information required for communication of the VoLTE roaming subscriber terminal 1, and transmits APN information for VoLTE roaming only for VoLTE voice communication To the LTE network of the foreign network 3 to which the subscriber terminal 1 belongs by sending the second information including only the second information to the LTE location registration response message.

FIG. 3 is a flowchart of a method for providing a VoLTE roaming service to a data roaming blocking subscriber according to an embodiment of the present invention, and is applied to the apparatus of FIG.

First, the HSS 20 of the domestic network 2 receives provisional information of the corresponding subscriber from the business computation server (IT) 2a. At this time, the data subscriber information is blocked and the VoLTE roaming service is subscriber information (hereinafter referred to as first subscriber information) for a customer to use. The HSS 20 stores and manages the received first subscriber information (S301)

When the subscriber customer moves abroad and performs LTE location registration in order to receive the roaming service through the LTE network 3a of the foreign network 3 at step S311, the HSS 20 of the domestic network 2 transmits the LTE location registration (Update Location Request) message, which is one of the location registration procedures, through the LTE network 3a of the home network 3 and the GLR (Gateway Location Register) 2b of the domestic network 2 (S312 to S313).

Then, the HSS 20 confirms the subscriber information included in the ULR message. If the subscriber matches the subscriber of the first subscriber information stored in step S301, the HSS 20 permits the location registration, but the APN information does not include the APN for the data And generates an Update Location Answer (ULA) message including only the APN for VoLTE roaming, and transmits the ULA message to the subscriber terminal 1 in response to the ULR message received in step S313, that is, The LTE network 3a of the foreign network 3 transmits an LTE location registration completion message to the LTE network 3a of the foreign network 3 in response to the location registration request of step S311, (S316).

The PDS for the roaming data is not opened and only the PDN for only the VoLTE roaming service is opened so that the data roaming is blocked and the VoLTE Roaming service can be provided.

As described above, a method for providing a VoLTE roaming service to a data roaming-blocking subscriber according to an embodiment of the present invention may be implemented as a computer-readable recording medium including program instructions for performing various computer-implemented operations . The computer-readable recording medium may include a program command, a local data file, a local data structure, or the like, alone or in combination. The recording medium may be those specially designed and constructed for the embodiments of the present invention or may be those known to those skilled in the computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floppy disks, and ROMs, And hardware devices specifically configured to store and execute the same program instructions. The recording medium may be a transmission medium such as an optical or metal line, a wave guide, or the like, including a carrier wave for transmitting a signal designating a program command, a local data structure, or the like. Examples of program instructions may include machine language code such as those generated by a compiler, as well as high-level language code that may be executed by a computer using an interpreter or the like.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: Subscriber terminal (VoLTE terminal)
2: domestic network
3: Overseas network
20: Home Subscriber Server (HSS)
21:
22:

Claims

As a device included in a Home Subscriber Server (HSS) of a domestic network,
A storage unit for storing first subscriber information for blocking the data roaming service and providing a VoLTE roaming service; And
When receiving the LTE location registration message from the terminal of the VoLTE roaming subscriber, when the VoLTE roaming subscriber is the subscriber of the stored first subscriber information, the first information for allowing the LTE location registration in response to the LTE location registration message, And a control unit for transmitting an LTE location registration response message including second information for blocking the data roaming service and providing a VoLTE roaming service to an LTE network of an overseas network to which the VoLTE roaming subscriber belongs, A device for providing a VoLTE roaming service to a blocked subscriber.

The method according to claim 1,
Wherein the LTE location registration message is an Update Location Request (ULR) message and the LTE Location Registration Response message is an Update Location Answer (ULA) message.

The method according to claim 1,
And the second information is APN (Access Point Name) information for VoLTE roaming.

A method performed by an HSS (Home Subscriber Server) of a domestic network,
(a) storing first subscriber information for blocking a data roaming service and providing a VoLTE roaming service; And
(b) receiving, when receiving an LTE location registration message from a terminal of a VoLTE roaming subscriber, an LTE location registration in response to the LTE location registration message if the VoLTE roaming subscriber is a subscriber of the stored first subscriber information; 1 information and data roaming service to the LTE network in the foreign network to which the VoLTE roaming subscriber belongs, the LTE location registration response message including second information for blocking VoLTE roaming service and providing VoLTE roaming service, A method for providing a VoLTE roaming service to a subscriber.

5. The method of claim 4,
Wherein the LTE location registration message is an Update Location Request (ULR) message and the LTE location registration response message is an Update Location Answer (ULA) message.

5. The method of claim 4,
Wherein the second information is APN (Access Point Name) information for VoLTE roaming.

A computer-readable recording medium storing a program for causing a computer to execute a method for providing a VoLTE roaming service to the data roaming blocking subscriber according to any one of claims 4 to 6.

An application stored on a medium for implementing a method for providing a VoLTE roaming service to said data roaming blocking subscriber according to any one of claims 4 to 6 in combination with hardware.

A computer program stored on a medium for causing a computer to execute a method for providing a VoLTE roaming service to the data roaming blocking subscriber of any one of claims 4 to 6.