KR20150044078A - Apparatus, Method, and Recording Medium for providing ODB Service - Google Patents

Abstract

An embodiment of the present invention relates to a technology which allows ODB users to get permission for specific services while blocking a continuous attach retry of a terminal in the case of a service blocking. In order to accomplish such purpose, the method for providing ODB service according to the present invention comprises the steps of, as a method to be processed in MME: (a) managing an APN list which will be permitted for the ODB users; (b) when a data service request message is received from an ODB user′s portable terminal, determining whether the APN information included in the received data service request message is in the APN list; (c) and permitting or blocking the pertinent APN data service depending on the determination by the step (b).

Description

[0001] Apparatus, Method, and Recording Medium for providing ODB Service [

The present invention relates to an Operator Determined Barring (hereinafter referred to as ODB) technique in an LTE (Long Term Evolution) system, and more particularly, The present invention relates to an apparatus, a method, and a recording medium for providing an ODB service, which can prevent a continuous retry of an ATT connection when a service is interrupted.

Generally, when a mobile communication subscriber requests a suspension of a data service for a certain period of time, an originating service of a data service such as a multimedia message service (MMS), a mobile voice over IP (mVoIP) And the communication usage fee for the data service is not charged.

 The data service pause service is provided through the ODB function of the wireless network, and the subscriber change information is provisioned to the network node according to the subscribers' application of the data service pause service to provide an ODB function for call barring .

However, according to the existing ODB service, since all data services are blocked for ODB subscribers without distinguishing services, there is a disadvantage that the subscribers also block data services that do not want to be blocked (for example, IMS, etc.) There is a problem that an unnecessary load is generated in the network due to the occurrence of a persistent connection retry of the terminal.

Registration No. 10-0566988 (registered on Mar. 27, 2006)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide an ODB subscriber which can allow a specific service without blocking all services, And to provide a device, a method, and a recording medium for providing an ODB service.

In order to achieve the above object, an apparatus for providing an ODB service according to an aspect of the present invention includes: a database for managing an access point name (APN) list to be allowed for an ODB subscriber; A determination unit for determining whether APN information included in the received data service request message is included in the allowable APN list of the database when the data service request message is received from the mobile terminal of the ODB subscriber; And a service allow / block operation unit for allowing or blocking the data service of the corresponding APN according to the determination result of the determination unit.

The service allow / block operation unit may transmit the data service blocking message for blocking to the corresponding mobile station, including information for preventing the AT connection retry.

For example, the data service request message may include an ESM information response message, the data service interception message may include an attach reject message, and the information for preventing the AT connection retry may include an EPS service failure (EPS services not allowed in this PLMN).

As another example, the data service request message may include a PDN Connectivity Request message, the data service interception message may include a PDN Connectivity Reject message, and the information for preventing the AT connection retry may include ODB information Can be recorded and generated.

According to another aspect of the present invention, there is provided a method for providing an ODB service, the method comprising the steps of: (a) managing an APN list to be allowed for an ODB subscriber; (b) if the data service request message is received from the mobile terminal of the ODB subscriber, determining whether the APN information included in the received data service request message is included in the allowable APN list; And (c) allowing or blocking the data service of the corresponding APN according to the determination result of step (b).

In the step (c), the data service interception message for interception may be transmitted to the corresponding MS including information for preventing the MS connection retry.

For example, the data service request message may be an ESM information response message. In this case, the data service interception message may be an Attach Reject message. services not allowed in this PLMN).

As another example, the data service request message may be a PDN Connectivity Request message. In this case, the data service interception message may include a PDN Connectivity Reject message, and the information for preventing the UE connection retry may include ODB information Can be recorded and generated.

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 the ODB service.

As described above, according to various aspects of the present invention, it is possible to selectively allow a specific service without blocking all services to the ODB subscribers, thereby improving the quality of the ODB service, (Attach) retries are prevented, thereby reducing traffic load on the network.

1 is a configuration diagram of a system for providing an ODB service according to an embodiment of the present invention;
2 is a configuration diagram of an apparatus for providing an ODB service according to an embodiment of the present invention;
3 is a flowchart of a method for providing an ODB service applied to the system of FIG. 1 according to an embodiment of the present invention;
4 is a flowchart of a method for providing an ODB service applied to the apparatus of FIG. 2 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 block diagram of a system for providing an ODB service according to an embodiment of the present invention. As shown in FIG. 1, for a data service based on multiple PDN (Packet Data Network) in an LTE (Long Term Evolution) An eNode B 20 that relays wireless communication with a UE (user's mobile terminal device) 10 in an EUTRAN (Evolved Universal Terrestrial Radio Access Network), and an eNode B 20 that relays an EPC (Evolved Packet Core) An MME (Mobility Management Entity) 30, an S-GW (Serving Gateway) 40, a P-GW (PDN Gateway) 50, a Home Subscriber Server (HSS) A policy and charging rule function (PCRF) 70, and the like.

The UE 10 can receive the data call transmission through the wireless communication relay of the eNode B 20 of the LTE network to the MME 30 as an exchange means and can transmit the data call through the subscriber information received through the interworking with the HSS 60 The session between the S-GW 40 and the P-GW 50 is generated for the call origination according to the exchange function of the MME 30 performing authentication, paging, session management, mobility management, and routing the bearer setting with the eNode B 20 can be performed so that data transmission / reception with the destination node via the Internet can be performed. At this time, charging according to the charging policy rule of the PCRF 70 can be performed.

According to the embodiment of the present invention, when the UE 10 makes a data call to receive a data service, the MME 30, which is an exchange means for data service, for accessing the wireless network through the data call origination of the UE 10 In performing ODB (Operator Determined Barring) function for data service pause service, ODB subscribers are allowed to selectively allow specific services without blocking all services, It is possible to prevent the terminal from continuously retrying the connection.

The UE 10 is a mobile terminal of a user (or subscriber), for example a mobile terminal such as a smart phone, a notepad, a tablet PC, And may include various mobile terminals capable of receiving data (packet) services over the wireless Internet.

FIG. 2 is a detailed configuration diagram of an apparatus for providing an ODB service according to an embodiment of the present invention, which is included in the MME 30 of FIG. 1. As shown in the drawing, the database 31, (33), and a service permitting / interrupting operation section (35).

The database 31 is for managing an access point name (APN) list to be allowed for an ODB subscriber as a multi-PDN terminal user. For example, the database 31 may include an IMS service, an Internet service, a tethering service, The ODB subscribers can store, update, or change the APN list for a specific data service that the ODB subscriber wants to receive a service.

When the data service request message is received from the UE 10 serving as the mobile terminal of the ODB subscriber, the determination unit 33 determines whether the APN information included in the received data service request message is included in the allowable APN list stored in the database 31 In this embodiment, the data service request message may include an ESM information response message or a PDN Connectivity Request message.

The ESM information response message indicates the message received from the UE 10 in response to the APN information request via the ESM information Request message at the MME 30 at the initial connection of the UE 10 (as is known) The Connectivity Request message indicates an additional PDN connection request message received from the UE 10 when the user requests another data service during the data service after the UE 10 is connected.

The service permitting / interrupting operation unit 35 performs an operation for allowing or blocking the data service of the corresponding APN included in the data service request message of the UE 10 according to the determination result of the determination unit 33 For example, if the APN information included in the data service request message of the UE 10 exists in the allowable APN list stored in the database 31, an operation for permitting the data service of the corresponding APN is performed If the APN information included in the data service request message of the UE 10 is not included in the allowable APN list stored in the database 31, the data service of the corresponding APN is performed The data service interruption operation according to the present embodiment will now be described.

The service permitting / cutting operation unit 35 generates a data service interception message including information for preventing at least the UE connection retry for data service interception and transmits the data interception message to the corresponding UE 10.

In the present embodiment, the data service interception message may include an Attach Reject message or a PDN Connectivity Reject message. If the data service interception message is an Attach Reject message, information indicating that the EPS service is not allowed in the PLMN may be recorded in the cause field of the PDN Connectivity Reject message. If the data service interception message is a PDN Connectivity Reject message, The information for prevention can be recorded by recording the ODB information in the ESM cause (field).

FIG. 3 is a flowchart of a method for providing an ODB service applied to the system of FIG. 1 according to an embodiment of the present invention, and is applied to the system of FIG.

First, when the UE 10 attempts an initial-access or a handover-attachment to receive data service (S401), the MME 30 transmits an ESM information request message The UE 10 sends an ESM information response message including APN information (for example, assumed to be an IMS APN) to the UE 10 and transmits the ESM information response message to the MME 10 (S402).

The MME 30 sends an ULR message to the HSS 60 in step S403 and the HSS 60 transmits a ULA message including the ODB information ODB = 1 in response to the ULR message to the MME 30 S404).

After the MME 30 recognizes that the user is an ODB subscriber by viewing the ODB = 1 information included in the ULA message, the MME 30 receives from the UE 10 of the corresponding ODB subscriber the APN information received in step S402, It is confirmed whether or not it is in the APN list (S405).

If the received APN information is not included in the APN list to be permitted as a result of the check in step S405, the MME 30 performs an operation for blocking the service (IMS service) of the corresponding APN (S410) (IMS service) of the corresponding APN (S420).

The MME 30 blocks the service of the corresponding APN (IMS service) from being provided in step S410 (S411), generates an Attach Reject message including the information of 'EMM = EPS service not allowed in this PLMN 14' To the UE 10 (S412). Even if the IMS service is blocked, the UE 10 does not retry the connection according to the function of the corresponding information in the 'EMM = EPS service not allowed in this PLMN (14)' received in step S412.

In step S420, the MME 30 permits the provision of the corresponding APN service (IMS service) according to the existing known method (S411). Thereafter, in step S411, the MME 30 transmits, to the UE 10, The PDN Connectivity Request message for the new service request is received from the UE 10 in step S422 and the received APN information included in the PDN Connectivity Request message (Step S423). In step S423, it is determined whether the APN list is stored in the APN list.

If the received APN information is found in the APN list to be accepted as a result of the check in step S423, the MME 30 performs an operation for allowing a service (Internet service) of the corresponding APN (S424) If there is no APN, the APN performs an operation for blocking the service (Internet service) (S425).

In step S425, the MME 30 blocks the APN service (Internet service) from being provided (S426), generates a PDN connectivity Reject message including the 'ESM = ODB (8) (S427). Even if the requested Internet service is blocked, the UE 10 does not request the connection retry according to the function of the corresponding information in the 'ESM = ODB (8)' information received through the PDN connectivity Reject message in step S427.

FIG. 4 is a flowchart of a method for providing an ODB service applied to the apparatus of FIG. 2 according to an embodiment of the present invention, and is described in parallel with the operation of the MME 30 of FIG.

First, when the data service call is a new call (S501), the MME 30 receives the Attach Request message and the ESM information response message from the UE 10 and receives the ULA message from the HSS 60 (S401- SS404) or receives a PDN Connectivity Request message from the UE 10 (see S422 in FIG. 3) (S502).

Then, it is determined whether the ODB information included in the ULA message is ODB = 1 (S503). If not, the normal subscriber process is performed because it is not an ODB subscriber (S504) And determines whether the APN information included in the ESN information response message or the PDN Connectivity Request message is included in the allowable APN list stored in the database 31 (S505)

If the corresponding APN information in step S505 is in the APN list to be allowed and the corresponding APN information is assumed to be an IMS APN, the MME 30 operates so that the corresponding IMS APN service is allowed (S506) And blocks other data services such as the Internet service (S507).

Meanwhile, if the data service call in step S501 is an existing call, the MME 30 receives the IDR message from the HSS 60, and the SR / TAU Request message is received from the UE 10 (see the existing call procedure) It is determined whether the ODB information included in the IDR message is ODB = 1 (S522). If not, the existing ODB operation is continued (S523) An SR / TAU Rejected message including 'EMM cause = Implicitly detached' information is transmitted to the UE 10 to block the corresponding service (S524). At this time, the UE 10 does not attempt to reconnect even if the corresponding service is interrupted by the 'EMM cause = Implicitly detached' information included in the SR / TAU Rejected message. However, in the initial access after the UE 10 is turned on / It is judged as a new call and the processes of S502 to S507 are performed.

If it is determined in step S505 that the APN information is not included in the allowed APN list, the MME 30 sends an Attach Reject message or a PDN connectivity Reject message to the UE 10 in the same manner as in step S410 or step S425 of FIG. 3, The service provision is blocked (S508). When receiving the Attach Reject message, the UE 10 does not request the access request even if the corresponding service is blocked based on the 'EMM = EPS service not allowed in this PLMN (14)' included in the Attach Reject message (S511 - S513) and does not request the PDN connectivity re-connection even if the corresponding service is blocked based on the 'ESM = ODB (8)' information included in the corresponding PDN connectivity Reject message upon receiving the PDN connectivity Reject message (S511 to S515).

As described above, the method for providing an ODB service according to various embodiments of the present invention can 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.

10: UE (User Equipment)
20: eNode B
30: Mobile Management Entity (MME)
40: S-GW (Serving Gateway)
50: P-GW (PDN Gateway)
60: Home Subscriber Server (HSS)
70: Policy and Charging Rule Function (PCRF)

Claims (18)

A database for managing an access point name (APN) list to be allowed for the ODB subscribers;
A determination unit for determining whether APN information included in the received data service request message is included in the allowable APN list of the database when the data service request message is received from the mobile terminal of the ODB subscriber; And
And a service allow / block operation unit for allowing or blocking the data service of the corresponding APN according to the determination result of the determination unit. The method according to claim 1,
Wherein the service permitting / blocking operation unit includes information for preventing a UE connection retry from being transmitted to the corresponding mobile station in a data service interception message for interception. 3. The method of claim 2,
Wherein the data service request message includes an ESM information response message. The method of claim 3,
Wherein the data service interception message includes an Attach Reject message. 5. The method of claim 4,
Wherein the information for preventing the UE connection retry is information indicating that an EPS service is not allowed in the PLMN in an EMM cause. 3. The method of claim 2,
Wherein the data service request message includes a PDN Connectivity Request message. The method according to claim 6,
And the data service interception message includes a PDN Connectivity Reject message. 8. The method of claim 7,
Wherein the information for preventing the AT connection retry is recorded in the ESM cause. 9. The method according to any one of claims 1 to 8,
Wherein the apparatus for providing the ODB service is included in the MME. As a method performed by the MME,
(a) managing a list of APNs to be allowed for an ODB subscriber;
(b) if the data service request message is received from the mobile terminal of the ODB subscriber, determining whether the APN information included in the received data service request message is included in the allowable APN list; And
and (c) allowing or blocking the data service of the corresponding APN according to the determination result of step (b). 11. The method of claim 10,
Wherein the step (c) includes transmitting, in the data service interception message for blocking, the information for preventing terminal retransmission to the corresponding mobile terminal. 12. The method of claim 11,
Wherein the data service request message is an ESM information response message. 13. The method of claim 12,
And the data service interception message is an Attach Reject message. 14. The method of claim 13,
Wherein the information for preventing the UE connection retry is recorded in the EMM cause indicating the EPS services not allowed in the PLMN. 12. The method of claim 11,
Wherein the data service request message is a PDN Connectivity Request message. 16. The method of claim 15,
Wherein the data service interception message includes a PDN Connectivity Reject message. 17. The method of claim 16,
Wherein the information for preventing the AT connection retry is recorded in the ESM cause. A computer-readable recording medium having recorded thereon a program for causing a computer to execute the method for providing the ODB service according to any one of claims 10 to 17.

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