KR101069442B1 - Method and apparatus for providing communication service to heterogeneous communication network, charging method thereof - Google Patents

Abstract

Disclosed is a method of providing a communication service for a heterogeneous communication network. According to this technique, receiving from the heterogeneous communication network, session information for a terminal connected to the heterogeneous communication network; Storing the session information; And transmitting a response according to the reception of the session information to the heterogeneous communication network.

Network, billing, service

Description

METHOD AND APPARATUS FOR PROVIDING COMMUNICATION SERVICE TO HETEROGENEOUS COMMUNICATION NETWORK, CHARGING METHOD THEREOF}

The present invention relates to a method and apparatus for providing a communication service, and a charging method according to providing a communication service, and more particularly, to a method and apparatus for providing a communication service in a heterogeneous communication network, and a charging method according to a communication service.

As computer, electronic, and communication technologies have made rapid progress, various wireless communication services using wireless communication networks have been provided. A service provided by a mobile communication system using a wireless communication network is developing from a voice service to a multimedia communication service for transmitting data such as circuit data, packet data, and the like. In addition, recently, the third generation mobile communication system IMT-2000 (International Mobile Telecommunication 2000) (eg, CDMA (Code Division Multiple Access) 2000 1X, 3X, EV-DO, WCDMA (WideBand CDMA), etc.) has been commercialized, The WiBro (Wireless Broadband Internet) network, a high-speed portable Internet service that guarantees portability and mobility and provides high-speed wireless Internet service at a low price, is commercially available in some regions.

By using WiBro network, it is possible to use services that can use various information and contents by accessing the Internet in indoor and outdoor stationary environments and mobile environments of walking speed and medium to low speeds. WiBro network uses 2.3 GHz frequency band and provides mobility of 60 km / h per hour, and the downlink transmission speed is 24.8 Mbps but the uplink transmission speed is 5.2 Mbps. System.

1 is a diagram illustrating a terminal 105 supporting a heterogeneous communication network and a heterogeneous communication network together.

In FIG. 1, the first communication network 101 is a WCDMA mobile communication network, and the second communication network 103 is a WiBro network. The user of the terminal 105 can access each communication network and use a communication service provided by each communication network. That is, the terminal 105 supports multiband. For example, a user of the terminal 105 may use a high speed wireless Internet service using the terminal 105 connected to the second communication network 103. In addition, the user of the terminal 105 may use a data service using the terminal 105 connected to the first communication network 101.

An object of the present invention is to provide a method for providing a communication service to a heterogeneous communication network, which enables a terminal user connected to the first communication network to provide a communication service of a second communication network.

Another object of the present invention is to provide a billing method according to a communication service for performing a billing according to a communication service of a second communication network to a terminal user connected to the first communication network.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

The present invention for achieving the above object comprises the steps of receiving session information for a terminal connected to the heterogeneous communication network, from a heterogeneous communication network; Storing the session information; And transmitting a response according to the reception of the session information to the heterogeneous communication network.

In addition, the present invention for achieving the above object, the step of receiving session information for a terminal connected to the first communication network, from the first communication network; Storing the session information; And transmitting a response to the reception of the session information to the first communication network, wherein the terminal provides a communication service to a heterogeneous communication network supporting the first communication network and the second communication network. to provide.

In addition, the present invention for achieving the above object comprises the steps of transmitting the session information for the terminal to the first communication network; And receiving a response according to the reception of the session information from the first communication network, wherein the terminal supports the first communication network and the second communication network, and is a heterogeneous communication connected to the second communication network. It provides a method for providing a communication service to a network.

In addition, the present invention for achieving the above object comprises the steps of receiving communication service request information according to the communication service request of the terminal connected to the heterogeneous communication network; Requesting subscriber information for the terminal to a session information storage unit for storing session information for the terminal; Receiving the subscriber information from the session information storage unit; And it provides a method for providing a communication service to a heterogeneous communication network comprising the step of performing service authentication for the terminal using the subscriber information.

In addition, the present invention for achieving the above object comprises the steps of receiving the billing request information from the session information storage for storing session information for the terminal connected to the heterogeneous communication network; Establishing a charging session according to the charging request information; And transmitting a response according to the charging request information to the session information storage unit.

According to the present invention, by storing session information of a terminal connected to a second communication network instead of the first communication network in a second communication network, a communication service provided by the second communication network can be provided to the terminal.

In addition, according to the present invention, by performing the service authentication using the session information of the terminal stored in the second communication network, it is possible to provide the terminal with a communication service provided by the second communication network.

In addition, according to the present invention, it is possible to perform charging for providing a communication service to a terminal connected to a heterogeneous communication network.

DETAILED DESCRIPTION Hereinafter, the most preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the technical idea of the present invention. The above objects, features, and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, and in describing the present invention, a detailed description of known technologies related to the present invention may unnecessarily obscure the gist of the present invention. If it is determined that the detailed description thereof will be omitted.

2 is a view for explaining the concept of a method for providing a communication service to a heterogeneous communication network according to the present invention. In FIG. 2, the case of one terminal is described as an embodiment.

As shown in FIG. 2, a system 200 for providing a communication service providing method according to the present invention includes a first communication network 201, a second communication network 203, and a terminal 205.

As described in FIG. 1, the terminal 205 supports both the first communication network 201 and the second communication network 203. That is, the terminal 205 may use both communication services provided by the first and second communication networks 203. In more detail, the terminal 205 may access a first communication network 201 to use a communication service provided by the first communication network 201, or may connect to a second communication network 203 to a second communication network. The communication service provided at 203 may be used.

In the related art, the terminal 105 connected to the first communication network 101 cannot receive the service provided by the second communication network 103, and the terminal 105 connected to the second communication network 103. Cannot receive the service provided by the first communication network 101. That is, in order for the terminal 105 connected to the second communication network 103 to use the communication service provided by the first communication network 101, the terminal 105 terminates the connection with the second communication network 103 and the first communication network ( 101).

However, according to the present invention, the terminal 205 can be provided with the communication service of the heterogeneous communication network even if it is not separately connected to the heterogeneous communication network to which the terminal 205 is connected.

In the method for providing a service according to the present invention, the first and second communication networks 203 share the session information with respect to the terminal 205 connected to each of the first and second communication networks 203, and thus, the second communication. The communication service of the first communication network 201 may be provided to the terminal 205 connected to the network 203, or the second communication network 201 may be provided to the terminal 205 connected to the first communication network 201. Can provide services. For example, when the terminal 205 is connected to the second communication network 203, the second communication network 203 transmits the session information for the terminal 205 to the first communication network 201 so that the first communication is performed. The communication service of the network 201 may be provided to the terminal 205 connected to the second communication network 203. Here, the communication service may be a voice or data service.

In order to access a communication network and receive a communication service, session information for a terminal is required. According to the present invention, a communication service can be provided from a heterogeneous communication network by providing session information to a heterogeneous communication network. Here, the session information is information used for generating and maintaining a call between the terminal 205 and the first and second communication networks 201 and 203, for example, location information of the terminal 205 (for example, IP). Address), MSISDN (Mobile Station International ISDN Number) information, IMSI (International Mobile Station Identity) information, and the information can be included. That is, according to the present invention, for example, the first communication network 201 is a terminal not connected to the first communication network 201 using session information about the terminal 205 connected to the second communication network 203. 205 and a call, and a communication service can be provided to the terminal 205 through the second communication network 203.

The second communication network 203 of the present invention performs a communication service to the terminal 205 by performing service authentication and charging using session information transmitted from the first communication network 201 to which the terminal 205 is connected. Can provide. Therefore, according to the present invention, when a difference in the use cost of the first and second communication networks 201 occurs, the user of the terminal 205 can access a more economical communication network and use a service for a heterogeneous communication network. have. In addition, according to the present invention, a user of the terminal 205 can access a communication network having a larger bandwidth and a faster speed, and use a service for a heterogeneous communication network.

Hereinafter, a case in which the terminal 205 is connected to the second communication network 203 and the communication service of the first communication network 201 is provided to the terminal 205 will be described as an embodiment.

When the terminal 205 is connected to the second communication network 203 at the request of the terminal 205, session information for the terminal 205 is transmitted to the first communication network 201. The first communication network 201 stores session information and transmits a response to the second communication network 203 to receive the session information. The session information may be stored in the session information storage unit of the first communication network 201 that manages location information and identification information of the terminal.

When the terminal 205 connected to the second communication network 203 requests a communication service for the first communication network 201, the first communication network 201 performs service authentication using the stored session information. In more detail, the first communication network 201 may perform service authentication using information on subscribers of the terminal 205 required for service authentication among stored session information. In addition, the service authentication unit of the first communication network 201 may perform service authentication by receiving subscriber information from the session information storage unit.

When the terminal 205 requests a communication service for the first communication network 201, the first communication network 201 charges the terminal 205. In more detail, the charging control unit of the first communication network 201 may receive charging request information from the session information storage unit, and the charging control unit may set up a charging session according to the use of the communication service according to the charging request information, and set a response message. It can be transmitted to the information storage.

3 to 10, a more detailed description will be given of the above embodiment. 3 to 10, a case in which the first communication network 201 is a WCDMA mobile communication network based on GSM and the second communication network 203 is a WiBro network will be described as an embodiment. For convenience of explanation, hereinafter, the WCDMA mobile communication network will be referred to as a mobile communication network.

Meanwhile, prior to the detailed description of the communication service providing method according to the present invention, the WiBro network and the mobile communication network will be briefly described.

WiBro networks include a Radio Access Station (RAS), an Access Control Router (ACR), and AAA (Authentication, Authorization, Accounting). RAS is a base station of a WiBro network, and performs a mobile Internet wireless access function and a mobility (handoff) support function. ACR is a control station for controlling RAS, and performs IP routing and mobility management functions. The AAA performs authentication, authorization and charging functions for the terminal 205.

The mobile communication network includes a base station, a Radio Network Controller (RNC), a Serving GPRS Support Node (SGSN), a Gateway GPRS Support Node (GGSN), an IP Location Server (IPLS), and a data service server. The base station and the RNC perform mobility (handoff) support functions and the like, and the SGSN performs functions such as packet routing and transmission. GGSN performs the connection function between General Packet Radio Services (GPRS) backbone network and external packet data network, and IPLS stores and manages session information. The data service server provides a data service according to a request of the terminal.

3 is a flowchart illustrating a method of providing a communication service in a heterogeneous communication network according to a first embodiment of the present invention.

As shown in Fig. 3, the communication service providing method according to the present invention starts from step S301.

In step S301, the mobile communication network 201 receives session information about the terminal 205 connected to the heterogeneous communication network from the heterogeneous communication network. Heterogeneous communication network means a different type of network than the mobile communication network 201, and as described above, means a WiBro network. In more detail, a session information storage unit such as IPLS that manages session information of the mobile communication network 201 may receive session information of the terminal 205 connected to the WiBro network 203. The session information may be transmitted by the AAA of the WiBro network. When the terminal 205 is connected to the WiBro network 203 at the request of the terminal 205, session information for the terminal 205 may be transmitted to the mobile communication network 201.

In step S303, IPLS stores the session information received in step S301. IPLS may store session information for the mobile communication network 201 based on the RADIUS protocol, and may store session information for the WiBro network 203 based on the DIAMETER protocol as a separate type.

In step S305, IPLS transmits a response to the reception of the session information to the WiBro network 203. According to the system design, the IPLS may transmit a response to the reception of the session information to the WiBro network 203 and store the session information.

Therefore, according to the present invention, when there is a service request of the terminal 205 connected to the WiBro network 203, the mobile communication network 201 performs service authentication by using the stored session information and performs a voice or data communication service. It may be provided to the terminal 205. In the opposite case, the WiBro network 203 receives the session information about the terminal 205 connected to the mobile communication network 201 from the mobile communication network 201 and then uses the session information to voice the terminal 205. Alternatively, data communication services may be provided.

On the other hand, as described above, the WiBro network 203 is based on the DIAMETER protocol, the session information is based on the DIAMETER protocol billing request messages (ACR (START), Accounting Request (START)) and billing interlock message (ACR (INTERIM) , Accounting Request (INTERIM)). This is because session information is required for charging. The billing request message and the billing interlock message are messages for billing the terminal 205 according to the use of the WiBro network 203, and include the session information for the terminal 205. The session information may be transmitted to the mobile communication network 201 by sending a message or a billing interrog message to IPLS.

In operation S301, the IPLS may receive one or more of a billing request message and a billing intercept message from the WiBro network 203. In operation S301, the IPLS may receive a charging request message, and in operation S303, the IPLS may store session information stored in the charging request message.

In addition, the communication service providing method according to the present invention may further include updating the session information stored in step S303 according to the charging interrog message. The billing interleaving message is a message transmitted for interim settlement of billing and the like. If the session information included in the charging intercept message is different from the session information included in the charging request message, IPLS may update the stored session information.

On the other hand, when the terminal 205 connected to the WiBro network 203 requests the termination of the connection, the WiBro network 203 charges termination message based on the DIAMETER protocol (ACR) so that the terminal 205 is no longer charged. STOP)) is used. The communication service providing method according to the present invention may further include receiving a charging end message from the WiBro network and deleting session information stored according to the charging end message. When the connection of the terminal 205 is terminated, the session information is unnecessary, so the IPLS deletes the stored session information.

In step S303, the IPLS may transmit a response message corresponding to the charging request message, the charging interrog message, and the charging end message to the WiBro network, thereby performing a response according to the reception of the session information.

In addition, the communication service providing method according to the present invention comprises the steps of receiving a request for the subscriber information for the terminal 205 from the service authentication unit of the mobile communication network 201 and service the subscriber information by using the session information in accordance with the request The method may further include transmitting to the authenticator. The communication service providing method according to the present invention may further include transmitting charging request information to a charging control unit of a mobile communication network, which will be described in detail with reference to FIGS. 5 and 6.

Meanwhile, the apparatus for receiving and storing session information of the WiBro network 203 is not limited to IPLS. As described above, the session information may be stored in a separate database (session information storage). In addition, the first communication network 201 may be a mobile communication network based on CDMA as well as GSM, and the second communication network 203 may be a wireless LAN network. When the DIAMETER protocol is applied to the WLAN network, the above-described message may be used.

4 is a flowchart illustrating a method of providing a communication service to a heterogeneous communication network according to a second embodiment of the present invention.

As shown in Fig. 4, the communication service providing method according to the present invention starts from step S401.

In step S401, the WiBro network 203 transmits session information about the terminal 205 connected to the WiBro network 203 to the mobile communication network 201. In one embodiment, the AAA of the WiBro network 203 may transmit session information to the mobile communication network 201. As described above in FIG. 3, the session information is included in the charging request message and the charging intercept message, and the AAA sends the session information by transmitting one or more of the charging request message and the charging intercept message to the mobile communication network 201. Can transmit

In step S403, the AAA may receive a response from the mobile communication network 201 in response to receiving the session information. The IPLS may receive the charging request message or the charging intercept message or the charging end message from the AAA, and may transmit an accounting answer (ACA) accordingly to the AAA. The IPLS may store, update, or delete session information according to a billing request message, a billing notification message, or a billing end message.

5 is a flowchart illustrating a method of providing a communication service to a heterogeneous communication network according to a third embodiment of the present invention.

As shown in Fig. 5, the communication service providing method according to the present invention starts from step S501.

In operation S501, the service authentication unit of the mobile communication network 201 receives communication service request information according to a communication service request of a terminal 205 connected to a heterogeneous communication network, that is, a WiBro network 203. The communication service request information may be transmitted from the ACR of the WiBro network 203, and the service authentication unit may be included in the data service server.

In step S503, the service authentication unit requests subscriber information for the terminal 205 to the session information storage unit for storing session information for the terminal 205. FIG. That is, the session information storage unit of the mobile communication network 201 receives a request for subscriber information for the terminal 205 from the service authentication unit. The subscriber information may be terminal 205 identification information such as MSISDN or IMSI information for the terminal 205. Since the subscriber information is included in the session information, the service authentication unit requests the subscriber information to the session information storage unit.

In step S505, the service authentication unit receives subscriber information from the session information storage unit. That is, the session information storage unit transmits subscriber information to the service authentication unit by using the session information at the request of the service authentication unit. After receiving the subscriber information, the service authentication unit may transmit a response message to the session information storage unit.

In step S506, the service authentication unit performs service authentication on the terminal 205 by using the subscriber information.

In more detail, in step S506, the service authentication unit may perform service authentication by checking whether the terminal 205 identification information included in the subscriber information and the terminal 205 identification information included in the communication service request information are the same. That is, the communication service request information according to the communication service request of the terminal includes the terminal identification information, and the service authentication unit may perform service authentication using the terminal identification information of the subscriber information and the communication service request information.

If service authentication is performed in step S506, the mobile communication network 201 may provide a communication service such as a voice or data service to the WiBro network 203.

6 is a flowchart illustrating a charging method according to a communication service providing according to an embodiment of the present invention.

As shown in Fig. 6, the charging method according to the present invention starts from step S601.

In step S601, the charging control unit of the mobile communication network 201 receives the charging request information from the session information storage unit storing session information for the terminal 205 connected to the heterogeneous communication network, that is, the WiBro network 203. That is, the session information storage unit transmits the charging request information to the charging control unit of the mobile communication network 201. Here, the charging request information includes the fee information for the terminal. That is, the billing request information indicates the type of plan set in the terminal 205 or the balance when the plan set in the terminal is a prepaid plan.

The session information storage unit receives the charging request message including the session information from the WiBro network 203 and transmits the charging request information to the charging control unit. The session information storage unit receives the session information and transmits the billing request information to the billing controller so that the billing controller can prepare for billing according to the use of the communication service of the terminal.

In step S603, the charging control unit sets up a charging session according to the charging request information. The charging control unit sets up a charging session and controls the charging according to the communication service when the terminal 205 uses the communication service.

In step S605, the charging control unit transmits a response according to the receipt of the charging request information to the session information storage unit. Each of the session information storage unit and the charging control unit transmits the charging request information by transmitting and receiving a charging request message (Accounting Request (START)) and a response message (Accounting Response) based on the RADIUS protocol, and the charging control unit responds to receiving the charging request information. can do.

On the other hand, in the charging method according to the present invention, using the charge information, according to the step of determining whether the balance charge set in the terminal 205 is exhausted and the determination result, the connection termination request information of the terminal 205 to the session information storage unit; The method may further include transmitting. That is, the charging control unit determines, when the balance is depleted and exhausted according to the use of the communication service of the terminal 205 in which the prepaid plan is set up using the fee information, and when the balance is exhausted, the connection termination request information is used. Send to storage. When the balance is exhausted, the service use authority of the terminal 721 is expired. Therefore, the session information storage unit transmits the connection termination request information to the WiBro network 203, and the WiBro network 203 is connected to the connection termination request information. Accordingly, the connection of the terminal 205 can be terminated.

In the charging method according to the present invention, the heterogeneous communication network is a WiBro network 203, and receiving mode information indicating an idle mode or a reactivation mode of the terminal 205 from the session information storage unit; The method may further include terminating or resetting the charging session according to the mode information.

WiBro network 203 supports idle mode and reactivation mode to save battery and system resource resources of terminal 205. The terminal 205 periodically searches for the WiBro network 203, checks whether there is a packet transmitted to the terminal 205, and enters an idle mode. In addition, the terminal 205 may exit the idle mode and enter the reactivation mode when the transport packet is present, and may be provided with the wireless Internet service in the reactivation mode. Charging is suspended in idle mode, and charging is resumed in reactivation mode.

That is, the WiBro network 203 may transmit the mode information of the terminal 205 to the session information storage unit by using the charging request and stop message, and the session information storage unit transmits the mode information to the charging controller. The charging controller terminates the charging session when the terminal is in the idle mode according to the mode information, and resets the charging session when the terminal is in the reactivation mode.

7 is a view for explaining a specific embodiment of the present invention.

As shown in FIG. 7, a system 700 for providing a communication service providing method according to the present invention includes a mobile communication network 701, a WiBro network 713, and a terminal 721. The mobile communication network 701, the WiBro network 713, and the terminal 721 of FIG. 7 correspond to the mobile communication network 201, the WiBro network 203, and the terminal 205 described in FIG. 2.

When the terminal 721 connects to the WiBro network 713 through the RAS 715, the AAA 719 performs authentication on the terminal 721. When the authentication is completed, the ACR 717 assigns location information (eg, an IP address) to the terminal 721. The AAA 719 transmits the session information for the terminal 721 to the IPLS 703, and the IPLS 703 stores the session information.

The terminal 721 may request a communication service from the data service server 705. In FIG. 7, a data service server 705 includes an application layer charging system (ACS) 707, a proxy agent system 709 (PAS), and a gateway (Wibro Application Gateway) 711.

Traffic according to the communication service request of the terminal 721, that is, communication service request information is transmitted to the gateway 711 via the ACR 717 and the ACS 707. The gateway 711 requests the subscriber information from the IPLS 703 and receives the subscriber information from the IPLS 703 to perform service authentication. The gateway 711 corresponds to the subscriber authentication unit described above. After authentication, a session for the service may be established, and a service may be provided from the data service server 705 to the terminal 721.

The IPLS 703 transmits the charging request information to the ACS 707 after receiving the session information, and the ACS 707 sets up the charging session according to the communication service according to the charging request information. That is, the ACS 707 controls charging according to the use of the application L (Layer) 7 of the terminal 721, and the ACS 707 corresponds to the charging controller described above.

If a wireless LAN network is used instead of the WiBro network 713 in FIG. 7, the terminal 721 is connected to the network through an access point (AP), and authentication and charging are similar to that of the WiBro network 713.

FIG. 8 is a diagram for describing the embodiment of FIG. 3 and FIG. 4. FIG.

The message described in FIG. 8 is a message based on the DIAMETER protocol.

In response to a connection request of the terminal PSS 721, the AAA 719 performs authentication on the terminal 721 (S801). At this time, authentication may be performed according to an Extensible Authentication Protocol Method for 3rd Generation Authentication and Key Agreement (EAP-AKA) authentication method according to the IEFT standard. The ACR 717 assigns an IP address to the terminal 721 according to the Dynamic Host Configuration Protocol (DHCP) (S803).

The ACR 717 sends a charging request message (ACR (START, UP), ACR (START, DOWN)) for charging to the AAA 719, and the AAA 719 sends a response message (ACA) to the ACR 717. (S805, S807). Since the WiBro network 713 charges for each of the uplink and the downlink, two charging request messages are transmitted to the AAA 719. The AAA 719 transmits the session information to the IPLS 703 by transmitting the charging request message ACR (START, UP) to the IPLS 703 (S809) .The charging request message ACR (START, UP), ACR ( START, DOWN)) includes the session information for the terminal 721, so that one of the two may be transmitted to the IPLS 703 so that the session information may be transmitted.

The ACR 717 sends a charging interleaving message (ACR (INTERIM, UP), ACR (INTERIM, DOWN)) for the intermediate charging to the AAA 719, and the AAA 719 sends a response message (ACA) to the ACR (ACR). 717) (S811, S813). The AAA 719 transmits the renewed session information to the IPLS 703 by transmitting the charging request message ACR (INTERIM, DOWN) to the IPLS 703, and the IPLS 703 sends the response message to the AAA 719. S) (S815).

After the connection of the terminal 721 is terminated (S817), the ACR 717 transmits the charging end message (ACR (STOP, UP), ACR (STOP, DOWN)) to the AAA 719, and the AAA 719. Sends a response message (ACA) to the ACR 717 (S819, S821). Since the terminal 721 generally uses an application called WCM (Wibro Connection Manager) to access or terminate the WiBro network 713, 'WCM termination' corresponds to termination of the connection.

The AAA 719 transmits the charging end message (ACR (STOP, DOWN)) to the IPLS 703, and the IPLS 703 transmits the response message ACA to the AAA 719 (S823). Each of the ACR 717 and the AAA 719 transmits a session end message STR for terminating the session to each of the AAA 719 and the IPLS 703, and each of the AAA 719 and the IPLS 703 is a response message. (STA) is transmitted to the ACR 717 and the AAA 719, respectively (S825 and S827).

[Table 1] and [Table 2] below show the ACR / AAA message format based on the DIAMETER protocol.

<AC-Request> :: = <Diameter Header: 271, REQ, PXY>
<Session-Id>
{Origin-Host}
{Origin-Realm}
{Destination-Realm}
{Accounting-Record-Type}
{Accounting-Record-Number}
[Acct-Application-Id]
[Accounting-Sub-Session-Id]
[Acct-Interim-Interval]
[Acct-Session-Time]
Termination-Cause
[Framed-IP-Address]
[Calling-Station-Id]
[NAS-IP-Address]
[NAS-Port-Type]
[Event-Timestamp]
[BSID]
[MSISDN]
[IN-Service-Name]
* [AVP]

<ACA> :: = <Diameter Header: 271, PXY>
<Session-Id>
{Result-Code}
{Origin-Host}
{Origin-Realm}
{Accounting-Record-Type}
{Accounting-Record-Number}
[Acct-Application-Id]
[Accounting-Sub-Session-Id]
[Acct-Interim-Interval]
[Event-Timestamp]
[Error-Message]
* [Failed-AVP]
* [AVP]

In FIG. 8, when a WLAN network is used instead of the WiBro network 713, the [Network Access Server (IPS) -IP-Address] field of the attribute value pair (AVP) of the ACR message may be omitted. -Type] field may be set to be suitable for the wireless LAN.

FIG. 9 is a diagram for describing a specific embodiment of FIG. 5. FIG.

Step S901 is a step in which session information is transmitted to the IPLS 703. Since the information is overlapped with that described in FIG. 8, the process will be described in step S901 in FIG. 9.

The communication service request information according to the communication service request of the terminal 721 is transmitted to the gateway 711 (S901). The gateway 711 holds a communication service request information, which is traffic, using a gate control function. The gateway 711 requests the subscriber information to the IPLS 703 by using a mobile station (MS) info request and transmits a response message (MS info response) to the IPLS 703 (S903). ).

Tables 3 and 4 below illustrate one embodiment of a subscriber information request message and response message format.

Information Element Type Message Type (0x10) M Message ID M Length M Subscriber IP Address M MSISDN O

Information Element Type Message Type (0x11) M Message ID M Length M Subscriber IP Address M MSISDN O MS Status O NAS IP Address O NAS Type O Cause Code O WiBro-MAC-Address O WiBro-BS-Id O

In FIG. 9, when the WLAN network is used instead of the WiBro network 713, the 'NAS IP Address' and 'WiBro-BS-Id' fields are omitted from [Table 4], and instead of 'WiBro-MAC-Address', A message for which WiFi-MAC-Address' is used may be used as a response message.

10 and 11 are diagrams for describing in detail the embodiment described with reference to FIG. 6. In FIGS. 10 and 11, a message (a message based on the RADIUS protocol) transmitted and received between the IPLS 703 and the ACS 707 will be described.

First, referring to FIG. 10, the IPLS 703 receives session information from the WiBro network 713, transmits a charging request message (Accounting Request (START), charging request information) to the ACS 707, and receives an ACS 707. ) Transmits a response message (Accounting Response) to the IPLS (703) (S1001). When the IPLS 703 updates the session information according to the charging intercept message, the updated billing request message is transmitted to the ACS 707 according to the session information update, and the ACS 707 sends a response message to the IPLS 703. Transmit (S1003).

After that, re-authentication is performed according to the WiBro standard (IEEE 802.16) (S1005), and the IPLS 703 transmits the updated charging request message to the ACS 707, and the ACS 707 sends a response message to the IPLS 703. To transmit (S1007).

When the terminal 721 enters the idle mode (S1009), the IPLS 703 transmits an accounting request (STOP) message to the ACS 707, and the ACS 707 responds with the IPLS 703. The message is transmitted (S1011). Here, 'Termination-Cause' of the charging end message is a data field included in the AVR. When the 'Termination-Cause' value is 15, it indicates the charging end message according to the idle mode.

Thereafter, when the terminal 721 enters the reactivation mode (S1013), steps S1015 and S1017 such as steps S1001 and S1003 are performed, and when the WCM ends, as described in FIG. 8, the charging procedure is performed. It ends (S1019)

Meanwhile, in FIG. 6, the case where the remaining charge set in the terminal 205 is exhausted has been described above, which will be described in more detail with reference to FIG. 11.

The ACS 707 may determine a case where the balance is deducted and exhausted according to the use of the communication service of the terminal 721 in which the prepaid plan is set using the charge request message transmitted from the IPLS 703. If the remaining balance is exhausted as a result of the determination, it is necessary to terminate the connection of the terminal 721 because it corresponds to the termination of the service use authority of the terminal 721. The ACS 707 transmits a connection termination message (Disconnect Request (Cut-Off), connection termination request information) to the IPLS 703 to terminate the connection of the terminal 721 (S1101).

Each of the IPLS 703 and the AAA 719 transmits a session termination message (ASR, Aort Session Request) to the AAA 719 and the ACR 717 (S1103 and S1107). Each of the ACR 717, AAA 719, and IPLS 703 transmits a response message (Aort Session Response (ASA), Disconnect Ack) to the AAA 719, IPLS 703, and ACS 707 (S1105, S1109, S1111).

The ACR 717 terminates the session of the terminal according to the session termination message (S1113), and the ACS 707 ends the charging session.

Meanwhile, as described above, the message used in the WiBro network 713 is based on the DIAMETER protocol, and the message transmitted and received between the IPLS 703 and the ACS 707 is based on the RADIUS protocol. The DIAMETER protocol is based on the RADIUS protocol, and the IPLS 703 may check the protocol of the received message, convert the protocol, and send the message.

On the other hand, the method for providing a communication service to the heterogeneous communication network and the charging method according to the communication service according to the present invention as described above can be written in a computer program. And the code and code segments constituting the program can be easily inferred by a computer programmer in the art. In addition, the written program is stored in a computer-readable recording medium (information storage medium), and read and executed by a computer to implement the method of the present invention. And the recording medium includes all types of recording media (intangible medium such as a carrier wave as well as tangible media such as CD and DVD) readable by a computer.

Although the present invention has been described by means of limited embodiments and drawings, the present invention is not limited thereto and is intended to be equivalent to the technical idea and claims of the present invention by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible.

1 is a diagram showing a terminal 105 supporting a heterogeneous communication network and a heterogeneous communication network together;

2 is a view for explaining a concept of a method for providing a communication service to a heterogeneous communication network according to the present invention;

3 is a flowchart illustrating a method for providing a communication service to a heterogeneous communication network according to a first embodiment of the present invention;

4 is a flowchart illustrating a method of providing a communication service in a heterogeneous communication network according to a second embodiment of the present invention;

5 is a flowchart illustrating a method for providing a communication service to a heterogeneous communication network according to a third embodiment of the present invention;

6 is a flowchart illustrating a charging method according to a communication service providing according to an embodiment of the present invention;

7 is a view for explaining a specific embodiment of the present invention;

8 is a view for explaining a specific embodiment of the embodiment shown in Figures 3 and 4,

9 is a view for explaining a specific embodiment of the embodiment described in FIG.

10 and 11 are diagrams for describing in detail the embodiment described with reference to FIG. 6.

Claims (14)

Receiving, from a heterogeneous communication network, session information for a terminal connected to the heterogeneous communication network; Storing the session information; And Transmitting a response according to the reception of the session information to the heterogeneous communication network; Method for providing a communication service to a heterogeneous communication network comprising a. The method of claim 1, The heterogeneous communication network WiBro network or WLAN network, The communication service Voice or data service provided by a GSM or CDMA based cellular network A method of providing communication services for heterogeneous communication networks. 3. The method of claim 2, The session information is Included in the charge request message and the charge interim message based on the DIAMETER protocol. Receiving the session information Receiving one or more of the charging request message and the charging interrog message from the WiBro network or a wireless LAN network A method of providing communication services for heterogeneous communication networks. The method of claim 3, Updating the stored session information according to the charging interrogation message. Method for providing a communication service to a heterogeneous communication network further comprising. The method of claim 3, Receiving a charging end message based on the DIAMETER protocol from the WiBro network or a WLAN network; And Deleting the stored session information according to the charging end message; Method for providing a communication service to a heterogeneous communication network further comprising. 3. The method of claim 2, Receiving a request for subscriber information for the terminal from a service authentication unit of the mobile communication network; And Transmitting the subscriber information to the service authenticator using the session information according to the request. Method for providing a communication service to a heterogeneous communication network further comprising. 3. The method of claim 2, Transmitting charging request information to a charging control unit of the mobile communication network; Method for providing a communication service to a heterogeneous communication network further comprising. Receiving communication service request information according to a communication service request of a terminal connected to a heterogeneous communication network; Requesting subscriber information for the terminal to a session information storage unit for storing session information for the terminal; Receiving the subscriber information from the session information storage unit; And Performing service authentication on the terminal using the subscriber information; Method for providing a communication service to a heterogeneous communication network comprising a. The method of claim 8, Performing the service authentication is Confirming whether the terminal identification information included in the subscriber information is identical to the terminal identification information included in the communication service request information; A method of providing communication services for heterogeneous communication networks. Receiving charging request information from a session information storage unit storing session information on a terminal connected to a heterogeneous communication network; Establishing a charging session according to the charging request information; And Transmitting a response according to the charging request information to the session information storage unit; Charging method according to the communication service providing comprising a. The method of claim 10, The charge request information is Including charge information for the terminal Charging method for providing telecommunication service. The method of claim 11, Determining whether the remaining charge set in the terminal is exhausted using the charge information; And Transmitting the connection termination request information on the terminal to the session information storage unit according to the determination result. Charging method according to the communication service providing further comprising a. The method of claim 10, The heterogeneous communication network WiBro network or WLAN network, The communication service Voice or data service provided by a GSM or CDMA based cellular network Charging method for providing telecommunication service. The method of claim 13, When the heterogeneous communication network is a WiBro network, receiving mode information indicating an idle mode or a reactivation mode of the terminal from the session information storage unit; And Terminating or resetting the charging session according to the mode information Charging method according to the communication service providing further comprising a.

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