KR20150109760A - Method, Apparatus, System, and Recording Medium for controlling PCC based on eNB in LTE System - Google Patents

Abstract

An embodiment of the present invention relates to a method, an apparatus, a system, and a recording medium for PCC control for each base station in an LTE system, which can provide various QoS policies and charging policies for each base station in an LTE system, A method for controlling a PCC according to a base station in an LTE system according to an aspect of the present invention includes the steps of (a) receiving a service request message from a specific eNB registered in an MME, 1 message to the PDN-GW; (b) generating, in the PDN-GW, a second message to which the specific PCC ID is added if the specific message has a specific PCC ID in the first message received from the MME, and transmitting the second message to the PCRF; (c) generating, in the PCRF, a new PCC rule (Rule) corresponding to the specific PCC ID in the second message received from the PDN-GW and transmitting the new PCC rule (Rule) to the PDN-GW via the third message; And (d) in the PDN-GW, applying the new PCC rules received from the PCRF.

Description

[0001] The present invention relates to a method, an apparatus, a system, and a recording medium for PCC control in each base station in an LTE system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for controlling PCC in an LTE (Long Term Evolution) system, and more particularly, to a technique for providing a QoS policy and a charging policy for each base station in an LTE system. To a method, an apparatus, a system, and a recording medium for controlling the same.

Generally, an EPC network of an LTE system is divided into three logical entities such as a PDN-GW (Packet Data Network Gateway), a Serving-GW (Serving Gateway) and an MME (Mobility Management Entity).

The PDN-GW is a global mobility anchor for mobility between 3GPP access technology and non-3GPP access technology (such as CDMA2000, WiMAX or WIFI) and a gateway to the external network. It allocates IP (Internet Protocol) (Session Control) interworking with the 3GPP network and a Serving-GW and external network and routing information for packet service as a user plane, and has tunneling and IP routing functions.

Serving-GW is a mobility anchor for mobility between 3GPP access (E-UTRAN, UTRAN, GERAN). Serving-GW interworks with eNodeB and S1-U interface as session control and user plane node that handles payload traffic according to the established session and supports Inter LTE / 3GPP handoff .

The MME is a control plane entity responsible for mobility management of UEs moving between different EUTRAN eNodeBs and also for session management.

Meanwhile, the above-described LTE system transmits and receives messages between Policy and Charging Rule Functions (PCRFs) for managing policies and charging rules in the PDN-GW in accordance with a location-based PCC (Policy & Charging Control) And reports the location information of all the user terminal devices through the network.

In addition, the QoS and accounting policy (PCC) of a specific service data flow is defined by a filter that defines the corresponding service data flow. The filter is basically a Source IP, a Source Port, a Destination IP, a Destination Port, and Protocol. In the case of DPI (Deep Packet Inspection), the server can be classified according to the URL and application.

However, since the DPI and the 5-tuple-based filter described above can not distinguish a base station that is fluidically changing, there is a problem that it is impossible to provide separate QoS and charging policies for each base station.

Published Japanese Patent Application No. 10-2013-0015529 (published Feb. 14, 2013)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method, apparatus, and system for controlling PCCs in each base station in an LTE system, which can provide separate QoS and charging policies for each base station. And a recording medium.

In order to achieve the above-mentioned object, a method for controlling PCC according to each base station in an LTE system according to an aspect of the present invention includes: (a) when a service request message is received from a specific eNB registered in an MME, Generating a first message to which a specific PCC ID registered is added, and transmitting the first message to the PDN-GW; (b) generating, in the PDN-GW, a second message to which the specific PCC ID is added if the specific message has a specific PCC ID in the first message received from the MME, and transmitting the second message to the PCRF; (c) generating, in the PCRF, a new PCC rule (Rule) corresponding to the specific PCC ID in the second message received from the PDN-GW and transmitting the new PCC rule (Rule) to the PDN-GW via the third message; And (d) in the PDN-GW, applying the new PCC rules received from the PCRF.

According to another aspect of the present invention, there is provided a method for performing PCC control for each base station in an LTE system, the method comprising: (a) associating a specific PCC ID with a specific eNB ID, ; And (b) upon receipt of the service request message from the registered specific eNB, generating a first message including the registered specific PCC ID and transmitting the first message to the PDN-GW, wherein the specific eNB ID May include ECGI (Enhanced Cell Global Identity) information.

According to another aspect of the present invention, there is provided a system for controlling a PCC according to another aspect of the present invention, wherein a service request message is received from a specific eNB registered in advance and a specific PCC ID registered in association with the specific eNB is added An MME for generating and transmitting a first message to the PDN-GW; A PDN-GW for generating a second message to which a specific PCC ID is added if a specific PCC ID is present in the first message received from the MME and transmitting the generated second message to the PCRF; And generates a new PCC rule (Rule) corresponding to a specific PCC ID in the second message received from the PDN-GW, and transmits the new PCC rule to the PDN-GW through the third message to apply the new PCC rule in the PDN-GW PCRF < / RTI >

According to another aspect of the present invention, there is provided an apparatus for controlling a PCC for each base station in an LTE system, comprising: a registration unit for registering a specific PCC ID and a specific eNB ID in association with each other; And a transmission unit for generating a first message including the registered specific PCC ID and transmitting the first message to the PDN-GW when receiving the service request message from the registered specific eNB, Enhanced Cell Global Identity) information.

In a system, an apparatus, and a method for PCC control for each base station in the LTE system, the first message may include a Modify Bearer Request (MBR) message, and the second message may include a CCR And the third message may include a credit control answer (CCA) message.

According to another aspect of the present invention, there is provided a computer-readable recording medium having recorded thereon a program for executing a method for controlling a PCC in each base station in the LTE system.

As described above, according to various aspects of the present invention, it is possible to apply a variety of quality characteristics and billing policies based on a base station or a region by making it possible to change a PCC rule according to a base station and wireless characteristics, There is an effect that can be done.

1 is a configuration diagram of an LTE system according to an embodiment of the present invention;
FIG. 2 is a configuration diagram of an apparatus for PCC control for each base station in an LTE system according to an embodiment of the present invention,
3 is a flowchart of a method for PCC control for each base station in an LTE system 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.

1 is a block diagram of an LTE system according to an embodiment of the present invention. As shown in the drawing, a UE 1, an eNode B 10, an MME (Mobile Management Entity) A Packet Data Network Gateway (PGW) 40, a Home Subscriber Server (HSS) 50, a Policy & Charging Rule Function (PCRF) 60, and a PDN (Packet Data Network) 70.

The UE 1 is a subscriber terminal device and receives a data communication relay of the eNB 10 of the LTE network to the MME 20 as a switching means. The mobile terminal (UE) 1 may include mobile terminal devices such as a smart phone, a notepad, and a tablet computer. However, these mobile terminal devices are merely examples of the mobile terminal (UE) 1, and various types of terminal devices capable of receiving data service through the wireless Internet can be included in the mobile terminal (UE) 1.

The eNB 10 is a base station equipment of an EUTRAN (Evolved Universal Terrestrial Radio Access Network) access method, and performs functions such as RF transmission and transmission and reception, signal strength and quality measurement, baseband signal processing, and channel card resource management .

The MME 20 is an EUTRAN access type mobile communication exchange center for signaling control between the eNB 10 and the SGW 30 and determines where to route the data received from the UE 1, Subscriber information and functions of mobility management, session management, idle subscriber management, paging, subscriber authentication, and the like of the UE 1.

When the MME 20 receives a service request message from a specific eNB registered when a service request from the UE 1 as a subscriber terminal device is received, the MME 20 transmits a specific PCC ID registered in association with the specific eNB (MBR) message to the PGW 40 through the SGW 30. [0054] The SGW 30 transmits the modified bearer request message to the PGW 40,

The SGW 30 is a serving gateway device for managing the mobility of the UE 1 between the eNB 10 and the second eNB, and performs a session control function for processing payload traffic according to a set session. The SGW 30 interworks with the eNB 10 to support handover, sets up the PGW 40 and an EPS bearer (Evolved Packet System bearer), and uses tunneling to transmit packet data units ).

The PGW 40 is a packet data network gateway device that allocates an IP address of the UE 1 and controls a session linked to a PDN 70. The SGW 30 and the PDN 70 ) And routing information, performs tunneling and IP routing functions, and delivers PDUs to the SGW 30 and the PDN 70.

The PGW 40 may also generate a CCR (Credit Control Request) message to which the PCC ID is added if the MBR message received from the MME 20 has a specific PCC ID, and may transmit the generated CCR message to the PCRF 60.

The HSS 50 is a network node including a database including subscriber information for the mobile communication system, and may store profile information of the service subscriber, authentication and location related data, and the like.

The PCRF 60 is a charging policy rule processing device and can provide a dynamic QoS and a charging rule according to a service data flow to perform a communication policy and a charging process in a communication network .

The PCRF 60 may also generate a new PCC rule corresponding to a specific PCC ID in the CCR message received from the PGW 40 and transmit the new PCC rule to the PGW 40 via a Credit Control Answer (CCA) message.

The PDN 70 may include, for example, the Internet as a packet data network.

FIG. 2 is a detailed configuration diagram of the apparatus for controlling PCC according to each base station in the LTE system according to the embodiment of the present invention, and is included in the MME 20 of FIG. 1. As shown in FIG. 20 and a transmission unit 23. [

When a special QoS policy and charging policy (PCC: Policy & Charging Control) are required for each eNB (or a base station), the registering unit 20 stores an eNB ID (Identity) as information capable of identifying the eNB and a corresponding PCC ID And the eNB ID is registered in advance in the MME 20. In this embodiment, the eNB ID may include one or more enhanced cell global identity (ECGI) information.

If the service request message is received from the specific eNB registered in the registering unit 21, that is, if the eNB ID in the service request coincides with the specific eNB ID registered in the registering unit 21, the transmitting unit 23 transmits the corresponding eNB ID A Modified Bearer Request (MBR) message including the registered PCC ID can be generated and transmitted to the PGW.

FIG. 3 is a flowchart of a method for PCC control for each base station in an LTE system according to an embodiment of the present invention. FIG. 3 is applied to the apparatus of FIG.

First, if a specific QoS policy and charging policy (PCC: Policy & Charging Control) is required for a specific eNB, the MME 20 registers the corresponding specific eNB ID and a specific PCC ID in association with each other in advance (S301).

An initial context setup process is performed between the eNB 10 and the MME 20 when the UE 1 sends a service request message to the MME 30 through the eNB 10 in step S303 (S305).

Then, the MME 20 checks whether the ECGI as the eNB ID in the corresponding service request matches the ECGI as the eNB ID previously registered in step S301, and if the eNB ID in the corresponding service request is not previously registered in step S301 (S307), a MBR (Modified Bearer Request) message including a specific PCC ID registered in association with the specific eNB ID is generated and transmitted to the PGW 40 through the SG 30 (S309, S311).

Then, the PGW 40 generates a CCR (Credit Control Request) message to which a specific PCC ID is added if there is a specific PCC ID in the MBR message received from the MME 20, transmits the message to the PCRF 60, (S313) to generate a new PCC rule (Rule) corresponding to a specific PCC ID.

Next, the PCRF 60 generates a new PCC rule corresponding to a specific PCC ID in the CCR message received from the PGW 40, and transmits the generated new PCC rule to a credit control answer (CCA) message And sends it to the PGW 40 to allow the PGW 40 to apply the new PCC rule (S315).

Thereafter, the PGW 40 receiving the CCA message at step S315 generates an MBA (Modify Bearer Answer / Response) message in response to the MBR message at step S311 and transmits it to the MME 20 through the SGW 30 S317, S319).

As described above, the method for controlling the PCC for each base station in the LTE system 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.

1: UE (User Equipment)
10: eNB (eNode B)
20: Mobile Management Entity (MME)
21: Register
23:
30: SGW (Serving Gateway)
40: PGW (PDN Gateway)
50: Home Subscriber Server (HSS)
60: Policy and Charging Rule Function (PCRF)
70: Packet Data Network (PDN)

Claims (16)

(a) generating, in the MME, a first message to which a specific PCC ID registered in association with the specific eNB is added, when the service request message is received from the specific eNB, and transmitting the first message to the PDN-GW;
(b) generating, in the PDN-GW, a second message to which the specific PCC ID is added if the specific message has a specific PCC ID in the first message received from the MME, and transmitting the second message to the PCRF;
(c) generating, in the PCRF, a new PCC rule (Rule) corresponding to the specific PCC ID in the second message received from the PDN-GW and transmitting the new PCC rule (Rule) to the PDN-GW via the third message; And
(d) in the PDN-GW, applying the new PCC rules received from the PCRF. The method according to claim 1,
Wherein the first message includes a Modify Bearer Request (MBR) message. The method according to claim 1,
Wherein the second message includes a CCR (Credit Control Request) message. The method according to claim 1,
And the third message includes a CCA (Credit Control Answer) message. A method performed on an MME device,
(a) associating a specific PCC ID and a specific eNB ID in association with each other; And
(b) upon receipt of the service request message from the registered specific eNB, generating a first message including the registered specific PCC ID and transmitting the first message to the PDN-GW. A method for PCC control by base station. 6. The method of claim 5,
Wherein the first message includes a Modify Bearer Request (MBR) message. 6. The method of claim 5,
Wherein the specific eNB ID includes enhanced cell global identity (ECGI) information for each base station in an LTE system. An MME for generating a first message to which a specific PCC ID registered in association with the specific eNB is added to the PDN-GW when a service request message is received from a specific eNB;
A PDN-GW for generating a second message to which a specific PCC ID is added if a specific PCC ID is present in the first message received from the MME and transmitting the generated second message to the PCRF; And
A new PCC rule corresponding to a specific PCC ID in the second message received from the PDN-GW is generated and transmitted to the PDN-GW via the third message, so that the new PCC rule can be applied in the PDN-GW And a PCRF for controlling the PCC for each base station in the LTE system. 9. The method of claim 8,
Wherein the first message includes a Modify Bearer Request (MBR) message. 9. The method of claim 8,
And the second message includes a CCR (Credit Control Request) message. 9. The method of claim 8,
And the third message includes a CCA (Credit Control Answer) message. A registration unit for registering a specific PCC ID and a specific eNB ID in association with each other; And
And a transmitter for generating a first message including the registered specific PCC ID and transmitting the first message to the PDN-GW when receiving the service request message from the registered specific eNB. Apparatus for control. 13. The method of claim 12,
Wherein the first message includes a Modify Bearer Request (MBR) message. 13. The method of claim 12,
Wherein the specific eNB ID includes enhanced cell global identity (ECGI) information for each base station in an LTE system. 15. The method according to one of claims 12 to 14,
Wherein the apparatus for controlling PCC for each base station in the LTE system is included in an MME. A computer-readable recording medium having recorded thereon a program for executing a method for PCC control for each base station in the LTE system according to any one of claims 1 to 7.

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