KR20090035095A - Method and system for providing prepaid subscriber billing call - Google Patents

Abstract

The present invention relates to a method and a system for providing a prepaid subscriber non-billing call, and when a prepaid subscriber is used for a data call even when the prepaid fee is exhausted and there is no remaining balance, a predetermined amount of quota is allocated to the prepaid subscriber. It connects the data call and then keeps the data call connected if the service used by the prepaid subscriber corresponds to the remote IP address charging, and disconnects the data call if the remote IP address charging does not. It is characterized by.

Therefore, according to the present invention, even if the prepaid balance is exhausted for the prepaid subscriber, the packet data call service can be continuously provided, and all mobile operators can provide the non-billing service for the prepaid subscriber with the prepaid charge. It becomes possible.

Description

System and method for providing non-accounting call

The present invention relates to a method and system for providing an unpaid call to a prepaid subscriber who is out of charge in a mobile communication network.

In general, a PrePaid Service (PPS) subscriber may use a network for a limited time or a packet by allocating a quota from the network as much as he / she purchased in advance. Quota decreases as much as the usage time or the number of packets sent and received. If the quota is exhausted, the connection is canceled unless an additional purchase is made, and if a new connection is made, no further data service is possible.

In the specification of the Code Division Multiple Access (CDMA) 2000 network, there is an item called Remote IP address accounting. This standard has the ability to exclude prepaid subscribers from charging prepaid subscribers, by excluding charges delivered to specific IP on billing (Exempted from PPS).

1 is a flowchart illustrating a process of performing charging for a prepaid subscriber in a conventional CDMA 2000 communication network.

As shown in FIG. 1, when any prepaid subscriber MS attempts to make a data call to a data service node (DSN) (S102), the DSN forwards an access request to the PPS server. (S104). The PPS server checks the balance of the prepaid fee for the prepaid subscriber who requested the connection (S106), informs the result of the result to the DSN, and accepts the data call connection (S108). Accordingly, the DSN connects the data call for the prepaid subscriber (S110).

However, when there is no prepaid balance of the prepaid subscriber, the PPS server notifies the DSN that there is no balance, so that the data call for the prepaid subscriber is not connected or disconnected.

Therefore, despite the need for a billing service between an operator and a subscriber according to various needs for data services of a CDMA 2000 communication network, there is a problem in that a data call cannot be provided to a subscriber without a prepaid balance.

In order to solve the above-mentioned problem, the present invention is to prepaid subscriber, but when the prepaid fee is exhausted, there is no balance, if the data call is requested to allocate a certain amount of quota (Quota) to the prepaid subscriber to connect the data call, The purpose is to provide a method and system for providing prepaid subscriber billing calls.

In addition, the present invention is a prepaid subscriber, but even if the prepaid fee is exhausted, there is no balance to allocate a minimum quota so that the call is not terminated immediately, the service corresponding to the remote IP address billing that requires non-billing, the billing fee The purpose is to provide a billing call providing method and system.

A method for providing a prepaid subscriber non-billing call according to the present invention for achieving the above object includes the steps of: (a) receiving a data call from a prepaid subscriber; (b) identifying a prepaid balance for the prepaid subscriber; And (c) when the prepaid balance is exhausted, assigning a certain amount of quota to the prepaid subscriber to connect the data call.

Also, in the step (a), a request message for the data call is received from the prepaid subscriber via a data service node (DSN) of the mobile communication network and an IP network.

In addition, in the step (b), the authentication request for the prepaid subscriber is transmitted to the authentication server, and after the authentication of the prepaid subscriber is performed through the authentication server, the prepaid balance is checked.

In addition, in the step (c), when the service to which the prepaid subscriber attempts to access corresponds to remote IP address charging, the data call is connected and maintained through a data service node (DSN) that processes the data call. Let's go.

In the step (c), when the service to which the prepaid subscriber attempts to access the service does not correspond to the remote IP address charging but the general charging, the data service node (DSN) for processing the data call is allocated. After the minimum quota is exhausted, the data call is disconnected.

On the other hand, the prepaid subscriber non-billing call providing system according to the present invention for achieving the above object, a mobile communication terminal receiving a prepaid service through a mobile communication network; An authentication server for performing authentication on the mobile communication terminal; And when there is a data call request from the mobile communication terminal, after authenticating the mobile communication terminal through the authentication server, checking the prepaid balance for the mobile communication terminal and confirming that there is no balance, And a prepaid service (PPS) server that allocates a certain amount of quota so that the unpaid call to the mobile communication terminal is connected through a data service node (DSN).

In addition, the prepaid service server allocates the predetermined amount of packet data to a quota so that the unpaid call is connected, and transmits the packet data to a data service node that processes the unpaid call.

The authentication server may also include a database storing subscriber information of the mobile communication terminal and prepaid information of the mobile communication terminal.

The prepaid service server may be further configured to connect the non-billing call to the mobile communication terminal through the data service node DSN when the IP address of the service used by the mobile communication terminal corresponds to remote IP address charging. To be maintained.

The prepaid service server may disconnect the data call to the mobile communication terminal through the data service node DSN when the IP address of the service used by the mobile communication terminal does not correspond to the remote IP address charging. do.

On the other hand, the prepaid service server according to the present invention for achieving the above object, the communication unit for performing communication with the data service node (DSN) or authentication server; And when the data call request is received from the prepaid subscriber terminal, performs authentication on the prepaid subscriber terminal through the authentication server, and checks the prepaid balance of the prepaid subscriber terminal to check the prepaid balance through the data service node. And a control unit for allocating a predetermined amount of quota to the prepaid subscriber terminal such that a non-billing call for the prepaid subscriber terminal is connected.

In addition, a data call processing unit for processing an uncharged call according to the data call request; A balance checking unit for checking a prepaid balance of the prepaid subscription terminal; And a quota allocator configured to allocate a certain amount of quotas to the prepaid subscriber terminal.

In addition, when the prepaid balance for the prepaid subscriber terminal is exhausted, the controller allocates a certain amount of quota to the prepaid subscriber terminal and transmits it to a data service node (DSN) that processes the data call. A non-billing call for the prepaid subscriber terminal is connected through a data service node.

The controller may be configured to maintain the connection of the non-billing call to the prepaid subscriber terminal through the data service node when the service used by the prepaid subscriber terminal corresponds to remote IP address charging.

The controller may be configured to disconnect the data call to the prepaid subscriber terminal through the data service node when the service used by the prepaid subscriber terminal does not correspond to remote IP address charging. server.

Meanwhile, a method of providing a prepaid subscriber non-billing call according to the present invention for achieving the above object includes: (a) receiving a data call from a prepaid subscriber; (b) checking a prepaid balance of the prepaid subscriber through a prepaid service server; (c) when the prepaid balance is exhausted, assigning a certain amount of quota from the prepaid service server to connect the data call; (d) determining whether a service used by the prepaid subscriber corresponds to remote IP address charging; And (e) maintaining or disconnecting the data call according to whether the remote IP address charging is applicable.

In addition, after step (a), the authentication of the prepaid subscriber is confirmed and step (c) is performed.

In addition, the authentication request for the prepaid subscriber is transmitted to the authentication server, and the authentication for the prepaid subscriber is confirmed through the authentication server.

Also, in the step (e), when the service used by the prepaid subscriber corresponds to the remote IP address charging, the data call is maintained through a data service node (DSN) that processes the data call.

In addition, in step (e), in step (e), if the service used by the prepaid subscriber does not correspond to the remote IP address charging, the data call is disconnected through the data service node (DSN). do.

Also, in the step (a), a request message for the data call is received from the prepaid subscriber via a data service node (DSN) of the mobile communication network and an IP network.

In step (b), if the prepaid balance exists, the data call to the prepaid subscriber is maintained.

According to the present invention, a data call can be provided to a subscriber who does not have a prepaid balance as a non-billing service is required between an operator and a subscriber according to various needs for data services of a mobile communication network.

In addition, even if the prepaid balance is exhausted for the prepaid subscribers subscribed to the prepaid service, the non-billing service for the packet data call can be provided.

In addition, all mobile communication providers can provide non-billing services for prepaid subscribers, and can provide various services in connection with services such as flat rates.

In addition, a non-billing packet data call service can be provided to a prepaid subscriber of a mobile communication network using a remote IP address charging function.

Details of the object and technical configuration of the present invention and the resulting effects thereof will be more clearly understood by the following detailed description based on the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic diagram showing the configuration of a prepaid subscriber non-billing call providing system according to an embodiment of the present invention.

Referring to FIG. 2, the prepaid subscriber non-billing call providing system includes a mobile communication terminal 210, a mobile communication network 220, an IP network 230, an authentication server 240, and a PPS server 250.

The mobile communication terminal 210 accesses the PPS server 250 through the mobile communication network 220 and receives a prepaid call service from the PPS server 250. In addition, when the prepaid balance is exhausted when the prepaid call service is requested, the mobile communication terminal 210 receives a non-billing call by allocating a certain amount of quota from the PPS server 250. Here, the mobile communication terminal 210 includes a mobile phone or a PDA.

The mobile communication network 220 provides a connection path for the mobile communication terminal 210 to access the PPS server 250 and forms a call path with another mobile communication terminal according to a call request of the mobile communication terminal 210. . Herein, the mobile communication network 220 includes code division multiple access (CDMA), wideband code division multiple access (WCDMA), and high speed downlink packet access (HSDPA). It may be implemented in a network such as WiBRO.

In addition, the mobile communication network 220 includes a base station 222 and a DSN 224, etc., the base station 222 processes the call request from the mobile communication terminal 210, DSN 224 is a mobile communication terminal ( 210) and establish a Point-to-Point Protocol (PPP) connection.

The IP network 230 is a communication network using an Internet protocol, such as the Internet, and provides a connection path for the mobile communication terminal 210 to access the PPS server 250.

The authentication server 240 processes subscriber authentication for the mobile communication terminal 210 requesting a call connection. To this end, the authentication server 240 includes a subscriber database that stores information on subscribers subscribed to the prepaid service, which can be configured separately from the server.

When there is a data call request from the mobile communication terminal 210 of the prepaid subscriber, the PPS server 250 checks whether the subscriber is a valid subscriber through the authentication server 240 and then checks the prepaid balance for the mobile communication terminal 210. When the prepaid balance is found to be exhausted, a certain amount, for example, one byte or more packet data is allocated as a quota so that the non-billing call is connected through the data service node DSN.

3 is a configuration diagram showing a prepaid packet data service configuration as an example of an embodiment according to the present invention.

Referring to FIG. 3, the prepaid packet data service configuration includes a visited access provider network, an IP network 330, a home access provider network, and a prepaid provider network.

Here, the visited access provider network includes a prepaid subscriber 310, a PDSN 320, and a visited RADIUS server 322, and the home access provider network includes a home agent (HA) 340 and a home RADIUS server 342. ). The prepaid provider network also includes a PPS server 350.

According to the present invention according to FIG. 3, when the prepaid subscriber 310 is located in the visited access provider network, when the IP address of the call request target terminal is located in the home access provider network, the call request target IP address is charged by the remote IP address. Since the PPS server 350 checks the prepaid balance for the prepaid subscriber 310 through the home RADIUS server 342 and allocates a certain amount of quota to the non-billing call when there is no balance. To keep it without cutting it.

4 is a flowchart illustrating a method of providing a prepaid subscriber non-billing call according to an embodiment of the present invention.

Referring to FIG. 4, the prepaid subscriber MS requests a packet data call service to the data service node DSN (S402), and the data service node DSN sends an access request message to the PPS server. Transfer to (S404). Here, the access request message includes information about the subscriber who requested the packet data call.

Upon receiving the access request message, the PPS server searches its own subscriber database based on the information of the subscriber included in the access request message, performs authentication function through the authentication server, and confirms whether the subscriber is a registered subscriber. In case of checking the prepaid balance (S406).

Accordingly, when it is determined that the subscriber's prepaid balance has been exhausted, the PPS server allocates a certain amount of quota, for example, 1 byte, and transmits it to the data service node DSN (S408), and the data service node DSN. ) Connects the packet data call requested by the subscriber through the allocated 1 byte packet (S410).

Here, although a 1-byte packet is allocated to the packet data call request of the mobile communication terminal 110 of the prepaid subscriber, it is not limited thereto and may allocate a packet up to a capacity of about 300 bytes or more as a quota.

Thereafter, the PPS server checks whether the IP address of the prepaid service used by the subscriber corresponds to remote IP address charging (S412).

In this case, remote IP address accounting is designed to reduce the load of the charging system. The data for the IP band composed of 10 IP addresses or 10 IP bands, that is, subnets, for a subscriber is used. When a call is connected, the billing for the call is divided by the designated IP address and displayed in the billing format (UDR: User Data Rate). For example, if the IP address of the color mail server is 211.115.15.43, the IP address of the mobile NateOn server is 211.115.18.63, and the total usage is 15000 bytes in the billing UDR, the usage of the IP address 211.115.15.43 is, for example, 1000 bytes and IP address 211.115.18.63 are used as 2000 bytes. The remaining 12000 bytes are used for IP addresses other than the specified IP address.

If the IP address of the service used by the subscriber is confirmed as the IP address of the remote IP address charging, the PPS server transmits the connection information to the data service node DSN (S414), and the data service node DSN accordingly sends data. Maintain or release the connection of the call (S416).

In case of remote IP address accounting, authentication is performed when the authentication server 240 adds an attribute called 'Exempted from PPS' to the IP address related to access acceptance during the PPP negotiation. The information is transmitted to the PPS server 250. Accordingly, the PPS server 250 accepts the 3000 bytes used in the above example when the IP address of the service used by the subscriber is determined to be charged by the remote IP address having the attribute of 'Exempted from PPS'. It does not deduct from the quota assigned to the IP address associated with.

In principle, in the case of prepaid service, the expired subscriber will be disconnected from the data call, so if the limit expires, the subscriber will not be able to connect to the IP address with the attribute 'Exempted from PPS'.

However, in the present invention, in order to provide an unpaid call even if the limit is expired, a small amount of quota is allocated to the corresponding IP address to allow the call, and at the same time, the remote IP address is assigned to the remote IP address as the unpaid IP address. Exempted from PPS 'is transmitted to the PPS server 250 with an IP address, which allows the PPS server 250 to accept calls without limiting the IP address. To be used. At this time, if the subscriber attempts to connect to another site, the quota is immediately exhausted and the connected call is disconnected.

For example, MMS (MultiMedia Service) charges only outgoing calls for color mails and does not charge incoming calls. When the caller's limit expires and the call is not connected, the present invention allows the incoming call. Even if the limit remains, it is treated as non-billing so that incoming mail is not charged. That is, in the authentication phase during the PPP connection, the subscriber of the color mail whose limit has expired is sent to the IP address of the color mail server, for example, 211.115.15.43. In this case, if the IP address including the 'Exempted from PPS' attribute is included in the message for the remote IP address and transmitted to the PPS server 250, the PPS server 250 indicates that the subscriber's IP address is the remote IP address. It is determined that the billing, and a certain amount of packet data is assigned to the quota to enable the connection to the corresponding IP address indefinitely according to the principle described above.

Meanwhile, the PPS server 250 disconnects the connected call or does not connect the requested call when the IP address of the service to which the prepaid subscriber accesses is not the IP address of the remote IP address charging.

That is, when the prepaid subscriber requests packet data call, the PPS server sends a certain amount of quota to DSN so that the prepaid subscriber's call is maintained even if the prepaid balance is exhausted, and the IP address of the service used by the prepaid subscriber is remote IP. If it is confirmed that the IP address of address billing is the IP address of the service used by the prepaid subscriber, the IP address of the remote IP address billing is maintained, the connection packet data call is maintained and the corresponding IP address is the remote IP address. In the case of not being charged, for example, if a user moves to another site through another Nate menu while connected, the corresponding quota is used up, thereby disconnecting the connected call.

5 is a configuration diagram schematically showing a functional block of a PPS server.

Referring to FIG. 5, the PPS server 250 includes a communication unit 510, a data call processing unit 520, a control unit 530, a balance check unit 540, and a quota allocation unit 550.

The communication unit 510 communicates with the mobile communication terminal 210 through the IP network 230 and the mobile communication network 220, or communicates with the authentication server 240 through the IP network 230.

The data call processor 520 processes a request for a packet data call of the mobile communication terminal 210 received through the communication unit 510 so that packet data is transmitted between the mobile communication terminal 210 and another mobile communication terminal. do.

When the control unit 530 receives the packet data call request from the mobile communication terminal 210, the authentication server 240 requests authentication of the prepaid subscriber, passes through an authentication process, and then performs a prepaid subscriber through the balance checker 540. When the prepaid balance is confirmed to be exhausted, it allocates a certain amount of quota through the quota allocator 550 to maintain the packet data call of the mobile terminal 210 and transmits it to the DSN 224.

The balance checking unit 540 calculates and confirms how much of the balance remains among the prepaid amount paid by the subscriber of the mobile communication terminal 210.

The quota allocator 550 allocates a quota for packet data of the mobile communication terminal 210 to, for example, one byte or more packet data. Here, the quota allocation unit 550 may be set to determine the quota amount according to the operator's situation.

6 is an operation flowchart of a data service node for explaining a method of providing a prepaid subscriber non-billing call.

Referring to FIG. 6, the data service node 224 receives an access request message from the mobile communication terminal 210 according to a user's data call request (S602).

Accordingly, the data service node 224 checks the prepaid balance of the mobile communication terminal 210 to perform authentication for the mobile communication terminal 210 through the authentication server 240 and to confirm the prepaid balance of the prepaid subscriber. To the PPS server 250.

The PPS server 250 checks the prepaid balance through the balance checker 540 and transmits the result to the data service node 224, whereby the data service node 224 checks the prepaid balance of the mobile communication terminal 210. (S604).

When the data service node 224 checks the prepaid balance and determines that there is no prepaid balance because all of the charges are exhausted (S606), the data service node 224 receives a packet data call request from the PPS server 250 for a packet data call request from the mobile communication terminal 210. A byte or more quota is allocated to connect a data call (S608).

Subsequently, the data service node 224 checks whether the IP address of the prepaid service connected to the mobile communication terminal 210 corresponds to remote IP address charging (S610).

If it corresponds to the remote IP address charging (S612-YES), the data service node 224 continues to maintain the data call to the mobile communication terminal 210 (S614).

However, if the IP address of the prepaid service to which the mobile terminal 210 connects does not correspond to remote IP address charging (S612-NO), the data service node 224 connects the data call to the mobile terminal 210. To release or disconnect (S616).

Accordingly, the data service node 224 maintains the connection of the packet data call to the mobile communication terminal 210 even if there is no prepaid balance for the mobile communication terminal 210.

On the other hand, the data service node 224 checks the prepaid balance of the mobile communication terminal 210 through the PPS server 250, and if it is confirmed that a predetermined amount of the prepaid balance remains (S606-NO), the mobile communication terminal ( Process 210 so that the general data call is connected (S618).

As described above, according to the present invention, even if the prepaid subscriber, but the prepaid fee is exhausted and there is no balance, when the data call is requested, a prepaid subscriber non-billing to allocate a certain amount of quota to connect the data call A call providing method and system can be realized.

As those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features, the embodiments described above should be understood as illustrative and not restrictive in all aspects. Should be. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

The present invention can be applied to a prepaid service system that enables a subscriber who pays a prepaid fee to use a voice call or a data call. The present invention can also be applied to a mobile communication system or a wired telephone system that provides a prepaid service.

1 is a flowchart illustrating a process of performing charging for a prepaid subscriber in a conventional CDMA 2000 communication network;

2 is a schematic view showing the configuration of a prepaid subscriber non-billing call providing system to which a prepaid subscriber non-billing call providing method according to an embodiment of the present invention is applied;

3 is a configuration diagram showing a prepaid packet data service configuration as an example of an embodiment according to the present invention;

4 is a flowchart illustrating a prepaid subscriber non-billing call providing method according to an embodiment of the present invention;

5 is a configuration diagram schematically showing a functional block of a PPS server;

6 is a flowchart illustrating an operation of a PPS server for explaining a method of providing a prepaid subscriber non-billing call.

<Description of Symbols for Main Parts of Drawings>

210: mobile communication terminal 220: mobile communication network

230: IP network 240: authentication server

250: PPS server 510: communication unit

520: data call processing unit 530: control unit

540: balance check unit 550: quota allocation unit

Claims (22)

(a) receiving a data call from a prepaid subscriber; (b) identifying a prepaid balance for the prepaid subscriber; And (c) when the prepaid balance is exhausted, assigning a certain amount of quota to the prepaid subscriber to connect the data call; Prepaid subscriber non-billing call providing method comprising a. The method of claim 1, In the step (a), the prepaid subscriber non-billing call is provided from the prepaid subscriber through a data service node (DSN) of the mobile communication network and an IP network. Way. The method of claim 1, In the step (b), the prepaid subscriber non-billing characterized in that the authentication request for the prepaid subscriber is transmitted to the authentication server, and the prepaid balance is checked after the prepaid subscriber is authenticated through the authentication server. How to provide a call. The method of claim 1, In step (c), when the service to which the prepaid subscriber attempts to access corresponds to remote IP address accounting, a data service node (DSN: Data Serving Node) for processing the data call is provided. Prepaid subscriber non-billing call providing method characterized in that to maintain the connection of the data call through. The method of claim 1, In the step (c), when the service to which the prepaid subscriber attempts to access is not corresponding to remote IP address accounting and is applicable to general billing, the data service node (DSN) processes the data call. : Method for providing a prepaid subscriber non-billing call characterized in that the data call is disconnected after the minimum number of quotas allocated by the data serving node is exhausted. A mobile communication terminal provided with a prepaid service through a mobile communication network; An authentication server for performing authentication on the mobile communication terminal; And When there is a data call request from the mobile communication terminal, after performing authentication on the mobile communication terminal through the authentication server, the prepaid balance for the mobile communication terminal is checked to determine that there is no balance. A prepaid service (PPS) server for allocating an amount of quota such that an unpaid call to the communication terminal is connected through a data service node (DSN); Prepaid subscriber billing call providing system comprising a. The method of claim 6, The prepaid service server allocates the predetermined amount of packet data to a quota so that the unpaid call is connected, and transmits the packet data to a data service node that processes the unpaid call. Call provision system. The method of claim 6, The authentication server, the prepaid subscriber non-billing call providing system characterized in that it comprises a database that stores the subscriber information for the mobile communication terminal and the prepaid information of the mobile communication terminal. The method of claim 6, The prepaid service server, when the IP address of the service used by the mobile terminal corresponds to remote IP address accounting, the data service node (DSN) for the mobile terminal through the data service node (DSN) A prepaid subscriber unpaid call providing system, characterized in that the connection of unpaid calls is maintained. The method of claim 6, The prepaid service server, when the IP address of the service used by the mobile communication terminal does not correspond to remote IP address accounting (Remote IP address accounting), through the data service node (DSN) for the mobile communication terminal A prepaid subscriber billing call provision system, characterized in that a data call is disconnected. A communication unit for communicating with a data service node (DSN) or an authentication server; And When there is a data call request from the prepaid subscription terminal, the authentication is performed on the prepaid subscription terminal through the authentication server, and the prepaid balance of the prepaid subscription terminal is checked. A controller for allocating a predetermined amount of quota to the prepaid subscriber terminal such that an unpaid call to the prepaid subscriber terminal is connected; Prepaid service server comprising a. The method of claim 11, A data call processing unit for processing an uncharged call according to the data call request; A balance checking unit for checking a prepaid balance of the prepaid subscription terminal; And A quota allocator configured to allocate a certain amount of quota to the prepaid subscriber terminal; Prepaid service server, characterized in that it further comprises. The method of claim 11, When the prepaid balance for the prepaid subscriber terminal is exhausted, the controller allocates a certain amount of quota to the prepaid subscriber terminal and transmits it to a data service node (DSN) that processes the data call. And a non-billing call for the prepaid subscriber terminal is connected through the data service node. The method of claim 11, The controller may be configured to maintain the connection of the non-billing call to the prepaid subscriber terminal through the data service node when the service used by the prepaid subscriber terminal corresponds to remote IP address accounting. Prepaid service server, characterized in that. The method of claim 11, The controller may be configured to disconnect the data call to the prepaid subscriber terminal through the data service node when the service used by the prepaid subscriber terminal does not correspond to remote IP address accounting. Prepaid service server. (a) receiving a data call from a prepaid subscriber; (b) checking a prepaid balance of the prepaid subscriber through a prepaid service server; (c) when the prepaid balance is exhausted, assigning a certain amount of quota from the prepaid service server to connect the data call; (d) determining whether a service used by the prepaid subscriber corresponds to remote IP address charging; And (e) maintaining or disconnecting the data call according to whether the remote IP address charging is applicable; Prepaid subscriber non-billing call providing method comprising a. The method of claim 16, And after step (a) confirms the authentication of the prepaid subscriber and performs step (c). The method of claim 17, And transmitting an authentication request for the prepaid subscriber to an authentication server and confirming the authentication for the prepaid subscriber through the authentication server. The method of claim 16, In the step (e), when the service used by the prepaid subscriber corresponds to the remote IP address charging, the data call is maintained through a data service node (DSN) that processes the data call. How to provide prepaid subscriber billing calls. The method of claim 16, In step (e), in step (e), if the service used by the prepaid subscriber does not correspond to the remote IP address charging, the data call is disconnected through the data service node (DSN). How to provide prepaid subscriber billing calls. The method of claim 16, In the step (a), the prepaid subscriber billing call providing method is received from the prepaid subscriber via a data service node (DSN) of the mobile communication network and an IP network. The method of claim 16, And in step (b), maintaining the connection of the data call to the prepaid subscriber if the prepaid balance exists.

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