KR20100109134A - System, apparatus and method for charging intelligent network prepayment data-service based on data packet - Google Patents

Abstract

PURPOSE: A system, a device, and a method for charging a prepaid data service of an intelligent network based on a data packet are provided to charge a prepaid data service based on the amount of packets, thereby reducing unnecessary charging processes. CONSTITUTION: A data service request about an intelligent network prepaid subscriber is received from a data call processing device(S20). Remaining packet information for a corresponding subscriber is requested to an intelligent network system. Remaining packet information is provided by a data service type(S50). It is checked whether a remaining packet corresponding to a data service type of the intelligent prepaid subscriber exists.

Description

System, apparatus and method for charging intelligent network prepayment data-service based on data packet

The present invention relates to prepaid data service billing processing of a mobile communication system, and more particularly, to a billing processing method and system for a packet-based prepaid data service through an intelligent network in a mobile communication system environment.

In recent mobile communication systems, data services can be used on the go without using a mobile communication terminal or a personal portable terminal. In addition, a method of paying a data service fee by a user who uses a data service using a mobile communication terminal may also use a prepaid bill payment service (prepaid billing), etc. The same various payment methods are being developed.

Among these, prepaid billing is a form of depositing a certain amount of money to a mobile communication service provider before using a mobile communication service, and receiving a mobile communication service within a limit of the deposit amount.

In particular, efforts have recently been made to simplify the prepaid billing procedures for data services and supplementary services using intelligent networks and to increase the efficiency of signaling networks.

Republic of Korea Patent No. 509,936 (name of the invention: a system and method for providing a prepaid intelligent network service of multimedia data in a mobile communication network), Republic of Korea Patent No. 476,484 (Name of the invention: an additional type except voice calls and data calls in a mobile communication network Real-time billing system and method for services), Republic of Korea Patent No. 419,148 (name of the invention: prepaid billing service system and method in asynchronous mobile intelligent network), Republic of Korea Patent No. 2001-65410 (name of the invention: mobile communication Incoming billing method for prepaid service subscriber in the system) discloses a prepaid billing procedure using an intelligent network system.

However, the conventional prepaid billing procedure as described above is a form of processing the real-time billing through the interworking of the intelligent network system by calculating the billing rate for each packet generated for the data service call processing. Therefore, there is a structural problem in that the subscriber cannot easily grasp how much the packet is available and how much the packet is used compared to the amount due to the amount of the packet corresponding to the prepaid monthly amount.

In addition, since the prepaid balance is calculated at a rate and converted into packets every time in real time, the prepaid billing process load is generated.

The present invention has been made to solve such a problem, and improves the method of processing the billing based on the prepaid balance in the intelligent network in the prepaid data service of the mobile communication system to prepaid billing based on the packet volume in conjunction with the intelligent network. It is an object of the present invention to provide a system, an apparatus and a method which can be processed.

In addition, the prepaid data service in the mobile communication system to prepaid billing processing to the packet-based processing to provide a clear description of the amount of use and the remaining packet amount to the subscribers.

Other objects and advantages of the invention will be described below and will be appreciated by the practice of the invention. Further, objects and advantages of the present invention can be realized by the means and the combination shown in the appended claims.

In order to achieve the above object, the data packet based intelligent network prepaid data service billing processing system according to the present invention is a data call processing and billing processing system for an intelligent network prepaid service subscriber in the mobile communication system, the data of the mobile communication terminal A data call processing device performing data call processing according to a service request, and requesting a data service request from a billing processing device and receiving a data call processing permission response when performing an intelligent network prepaid subscriber; In response to the data service request request including the data service type information of the intelligent network prepaid subscriber from the data call processing device, the remaining network information is received by the intelligent network system to receive the remaining packet information for each data service type. A billing processing device which permits data call processing and calculates the amount of packets used when a residual packet corresponding to the data service type exists; And an intelligent network system for storing and managing the amount of usable data packets according to the prepaid services of the intelligent network prepaid subscribers according to the data service type, and extracting and providing the remaining packet information for the data service type of the subscriber according to the request of the billing processing apparatus. It includes.

According to another aspect of the present invention, a billing processing device for an intelligent network prepaid service subscriber in a mobile communication system, interworking with a data call processing node of a mobile communication system, requesting a data service request including data service type information for an intelligent network prepaid subscriber Data call processing node interworking module for receiving; An intelligent network system interworking module that receives the remaining packet information of the intelligent network prepaid subscriber by interworking with the intelligent network system of the mobile communication system; And analyzing the remaining packet information for each data service type provided through the intelligent network system interworking module according to the data service request request, checking whether there is a residual packet corresponding to the requested data service type, and interworking with the data call processing node if present. A data packet based intelligent network prepaid data service billing processing apparatus is provided that includes a billing control module that permits data call processing according to a service request requested through a module and calculates a packet amount used at this time.

According to another aspect of the present invention, an intelligent network system that manages billing information for an intelligent network prepaid service subscriber in a mobile communication system, and divides the amount of usable data packets by data service type according to the subscriber information and the prepaid service of the intelligent network prepaid subscribers. To store the database; And an intelligent network control module for receiving a residual packet information inquiry request for an intelligent network prepaid subscriber from a charging processing node of a mobile communication system and extracting and providing residual packet information for each data service type of the corresponding subscriber from the database. Intelligent network system is provided.

According to another aspect of the present invention, a data call processing and billing processing method for an intelligent network prepaid service subscriber in a mobile communication system, comprising: (a) receiving a data service request of a mobile communication terminal from a data call processing device to determine whether it is an intelligent network prepaid subscriber; Determining; (b) requesting a data service request to a billing processing device in the case of the intelligent network prepaid subscriber as a result of the determination; (c) receiving a data service request request including data service type information of the intelligent network prepaid subscriber in the billing processing apparatus and requesting the remaining packet information for the subscriber from the intelligent network system; (d) In the intelligent network system that classifies and stores the amount of usable data packets according to the prepaid services of intelligent network prepaid subscribers according to the data service type, the remaining packet information according to the data service type of the subscriber according to the request for the remaining packet information for the subscriber. Extracting and providing; (e) receiving the remaining packet information for each data service type, and determining whether there is a residual packet corresponding to the requested data service type; (f) as a result of the determination, if there is a residual packet corresponding to the corresponding service type, authorizing the data call processing to the data call processing apparatus and calculating a packet amount used therefrom; including the data packet based intelligent network prepaid data A service billing method is provided.

According to the present invention, since the prepaid billing is processed based on the packet amount in conjunction with the intelligent network system in the intelligent network prepaid data service of the mobile communication system, unnecessary charging process can be reduced, thereby reducing the processing load. .

In addition, after processing the prepaid billing based on the packet amount, it provides the subscriber with the information of the packet amount and the remaining packet amount to be subtracted, it is easy to visually check the remaining packet amount according to the prepaid billing. Furthermore, since the prepaid packet amount of each prepaid subscriber is stored and managed according to the type of data service, it is possible to provide an effect of differential charging processing for each service type.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a diagram showing the configuration of a mobile communication network system in which the present invention is implemented.

Referring to the drawings, a mobile communication system in which the present invention is implemented includes a plurality of user equipments (UEs) 500, a base station (Node B) 410 that communicates wirelessly with the subscriber station 500, and the base station. Random Access Network (RAN) 405 consisting of a Radio Network Controller (RNC) 420 that controls 410, and moves from the radio access network 405 to a connected Core Network. Mobile Service Center (MSC) 430, Visitor Location Register (VLR), Gateway MSC (440), Home Location Register (HLR) 450, A data call processing node 300 including a Serving GPRS Support Node (SGSN) 310 and a Gateway GPRS Support Node (GGSN) 320 is configured and connected to the data call processing node 300. Application Charging System (ACS) 110, Data-Service Control Point (DSCP) 120, and IP Multimedia- Data charging processing node (100) consisting of Service Control Point (130), Service Control Point (SCP) 210, Service Management Point (SMP) 220, Database 230 connected to the charging processing node 100 It includes an intelligent network system (Intelligent Network) (200).

The subscriber station 500 is a terminal using a mobile communication service through a circuit switched network (CSN) and a packet switched network (PSN), and performs voice, video call, short message (SMS) and multimedia message (MMS) services. And various data services (text data service, multimedia data service, Internet direct access service, VOD service, etc.) must be equipped with functions and software. Subscriber terminal 500 according to the present invention includes a cellular phone, a PCS (Personal Communication Service) phone, PDA phone, GSM phone, CDMA-2000 phone, WCDMA phone, DMB phone, etc., in particular, preferably WCDMA phone.

A random access network (RAN) 405 serves to guarantee the mobility of the subscriber station 500 and performs hand-off and radio resource management functions. The wireless access network 405 is composed of a base station 410 and a wireless control station 420 to form an access network for circuit connection or packet connection of the subscriber station 500 to the core network. do.

The base station (Node B) 410 performs a radio access termination function with a subscriber station conforming to the 3GPP radio access standard, and in particular, performs a function of transmitting and receiving voice, video, and data traffic in a WCDMA manner. . The wireless control station (RNC) 420 is wired or wireless channel management, protocol matching with subscriber stations, protocol matching between base stations, soft handoff processing, core network protocol processing, GPRS (General Packet Radio Service) access, failure management , Functions such as system loading. Here, GPRS is an asynchronous communication system that supports a data transmission speed of 115kbps, provides a multimedia mail, and maximizes the efficiency of a transmission line by packet data transmission.

The mobile switching center 430 has a soft switching structure for speeding up call processing in addition to basic functions for voice call in the existing IS-95B network. Here, soft switching is a technology capable of processing voice, data, and video signals with a high speed packet switch by upgrading a circuit switch of a conventional exchange to a software switch. The external network gateway 440 is a switch at a point connected to an external circuit switching network (CS). All incoming and outgoing circuit switched connections go through the external network gateway 440.

The home location register (HLR) 450 receives and stores a subscriber profile such as an intelligent network information (ServiceKey) and additional service information about a subscriber from a customer management database system (WISE). Therefore, the response message for the location registration request of the originating terminal includes the intelligent network information (ServiceKey) and the additional service information is transmitted to the mobile switching center 430 or the packet switch 310.

The data call processing node 300 is a node that performs data call processing and packet exchange processing in a core network of a mobile communication system, and includes a packet switch 310 and a packet network gateway 320. In addition, in another network such as a CDMA network, the data call processing node 300 may include a Packet Data Serving Node (PDSN) and an Inter Working Function (IWF). That is, the data call processing node 300 performs data call processing according to the data service request of the subscriber station, that is, the mobile communication terminal 500, and thus performs a packet exchange service. In this case, when the subscriber of the mobile communication terminal 500 is an intelligent network prepaid data service subscriber, the data communication request node 100 and the intelligent network system 200, which will be described later, request a data service request and receive a call processing permission response. Only in this case, the above-described data call processing and packet switching service may be performed.

To this end, the data call processing node 300 serves to distinguish additional service subscribers such as intelligent network prepaid subscribers during packet exchange and data call processing. In this case, the subscriber profile information provided from the home location register 450 is used. In addition, the data call processing node 300 interworks with the intelligent network system 200 and the data charging processing node 100 to perform service processing and charging processing for the intelligent network prepaid subscriber.

The packet switch (SGSN) 310, which is an example of being included in the data call processing node 300, is similar to the function of the mobile switching center 430, and is based on an Asynchronous Transfer Mode (ATM) based switch for GPRS service. And a hardware structure for providing a routing connection, and supports an operating system (OS) according to various data service processing. The operating system functions consist of GPRS mobility management, GPRS session management, GPRS authentication and billing functions. The packet network gateway (GGSN) 320 is similar to the function of the external network gateway 440 and participates in a packet switching (PS) service with an external packet network.

The data charging processing node 100 performs packet-based charging processing for a data service in association with the data call processing node 300 and the intelligent network system 200 to be described later. That is, in response to the charge processing request for the data service from the data call processing node 300, the data call processing node 300 interworks with the intelligent network system 200 to provide information such as packet based billing processing and data call processing permission. The data charging processing node 100 is composed of an ACS 110, a DSCP 120, an IM-SCP 130, and the like.

The ACS 110 is a system that processes the billing for the Layer 7 (Application Service) layer during data call processing in the data call processing node 300, and the DSCP 120 and the IM-SCP 130 when the subscriber is a prepaid subscriber. Through real-time billing through linkage with.

The DSCP 120 is a system that manages the billing rate of data call processing for the intelligent network prepaid service and calculates billing according to the service type. The subscriber who subscribes to the packet-based monthly payment product plays a role of transmitting data service information and packet quantity information to the intelligent network system 200 without calculating the charge rate.

The IM-SCP 130 is a system for managing the billing rate of IMS data call processing for intelligent network prepaid service and the rate for Layer 3 of data call processing, and calculating billing according to the service type. Like the DSCP 120, the subscriber who subscribes to the packet-based monthly product does not calculate the billing rate, but transmits the data service information and the packet quantity information to the intelligent network system 200. In addition, the IM-SCP 130 processes charging for the IMS application service and packet L3 charging.

The intelligent network system 200 refers to equipment capable of generating and processing a service desired by a service provider. The network elements of the intelligent network include an SSP (Service Switching Point), which is a switching device, and a SCP (Service Control Point), which is a service control device. 210, Service Management Point (SMP) 220 as a service management device, Intelligent Peripheral (IP) as an intelligent peripheral device, and Service Creation Environment (SCE) as a service development environment for creating and providing service logic. It is composed. In the intelligent network system 200, all systems are linked to a network, and SMS processes multiple subscriber information of a customer management database system (WISE: Wireless Information Service Environment) 230 in an environment requiring real-time work processing. It then instructs several SCPs to process the job, sending the results of the series of job processing back to the customer care database system.

The intelligent network system 200 according to the present invention stores and manages the amount of usable data packets according to the data service type according to the prepaid services of the intelligent network prepaid subscribers, and the data of the subscribers according to the request of the data charging processing node 100. It extracts and provides the remaining packet information for each service type.

Hereinafter, the data charging processing apparatus 100 and the intelligent network system 200 which are the main components of the data packet based intelligent network prepaid data service billing processing system according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a configuration of a data packet based intelligent network prepaid data service billing processing device according to an embodiment of the present invention.

Referring to FIG. 2, the billing processing device 100 according to the present invention includes a data call processing node interworking module 150, an intelligent network system interworking module 160, a billing control module 170, and the like.

The data call processing node interworking module 150 performs interworking with the data call processing node 300 of the mobile communication system, and receives a signal message from the data call processing node 300 or performs various information through the interworking processing. And control messages are sent. That is, the data call processing node interworking module 150 receives the data service request request including the data service type information for the intelligent network prepaid subscriber in cooperation with the data call processing node 300, and in response, the call processing permission or The processing for transmitting the restriction information and the charging result information is performed.

The intelligent network system interworking module 160 performs interworking processing with the intelligent network system 200 of the mobile communication system. Through the interworking processing, the intelligent network system interworking module 160 inquires the remaining packet information of the intelligent network prepaid subscriber and receives a response. Processing such as sending a packet subtraction request is performed according to the result.

The charging control module 170 determines whether the intelligent network prepaid subscribers provide data service based on the data packet, performs charging processing during data service, and provides the result information after the charging process based on the packet amount. The charging control module 170 is a packet information analysis unit 171, acceptance determination unit 172, use packet calculation unit 173, packet exhaustion check unit 174, usage information check unit 175, billing A result information provider 176 and the like.

The packet information analyzer 171 extracts service type information included in the data service request signal received from the data call processing node interworking module 150, and provides the corresponding subscriber provided through the intelligent network system interworking module 160. A process of analyzing prepaid packet information is performed. The prepaid packet information of the subscriber provided by the intelligent network system includes remaining packet amount information for all data service types of the subscriber, and the role of analyzing the information is the role of the packet information analyzer 171.

The permission determining unit 172 determines whether to allow the data call processing of the subscriber who requested the data service. To this end, the allowance determination unit 172 determines the remaining packet amount corresponding to the type of service requested by the corresponding subscriber analyzed by the packet information analyzer 171 to determine whether the remaining packet amount exists. As a result of the determination, whether the information is acceptable or not is transmitted to the data call processing node through the data call processing node interworking module 150. By transmitting such permission information, the data call processing node performs control processing of whether or not call processing of the corresponding subscriber is performed.

The used packet calculator 173 calculates a data packet to be used when data processing is performed and call processing is performed. In this case, the amount of packet used is calculated by dividing by the type of data service used.

The packet exhaustion check unit 174 checks whether the accumulated usage packet amount calculated by the usage packet calculator 173 reaches the remaining packet amount of the subscriber. When the remaining packet amount is reached, it is determined that all the prepaid packets are exhausted, and the call termination indication information is transmitted to the data call processing node through the data call processing node interworking module 150.

When the usage information checking unit 175 receives the charge processing stop signal according to the end of the call from the data call processing node, the used packet calculation unit 173 adds up the amount of packets used so far to the intelligent network system. It sends the charging packet information to be subtracted. That is, the total amount of packets used by the subscriber is checked and provided to the intelligent network system. Further, when it is determined that the packets are exhausted by the packet depletion check unit 174, the packet is transmitted to the intelligent network system and applied to the intelligent network system.

The charging result information providing unit 176 provides the packet amount information used after the charging process to the corresponding subscriber through the data call processing node, and the total remaining packet amount information of the corresponding subscriber after subtracting the packet amount used in the intelligent network system. Serves to provide. In this case, packet quantity information is provided by dividing by service type. Through this, intelligent network prepaid subscribers can intuitively check the amount of packets used and the amount of remaining packets by service type, and clearly identify future usage plans.

3 is a diagram illustrating a configuration of a data packet based intelligent network system according to an embodiment of the present invention.

Referring to FIG. 3, the intelligent network system 200 according to the present invention includes an intelligent network control module 250 and a packet-based prepaid information DB 260 as components.

The intelligent network control module 250 includes an information provider 252, a subtraction processor 254, and the like. The information provider 252 serves to provide subscriber information in response to various inquiry requests to the intelligent network system. That is, when receiving a request for querying the remaining packet information for the intelligent network prepaid subscriber from the charging processing node of the mobile communication system, DB 260 to extract the remaining packet information for each service type of the subscriber is provided and provided. The subtraction processing unit 254 serves to subtract and apply the packet amount required as a result of the charging process to the DB 260. That is, the subtraction processing unit 254 receives the packet usage information after using the data service from the billing processing node and processes the remaining packet amount for each type of data service of the subscriber to the packet-based prepaid information DB 260 which will be described later.

The packet-based prepaid information DB 260 is a database in which the amount of usable data packets is classified and stored according to the data service type according to the subscriber information and the prepaid data charge service of the intelligent network prepaid subscribers. That is, data packet based residual packet amount information is stored and managed in contrast to the existing data prepaid service for each amount of money. To this end, by implementing a prepaid amount and various types of data services, a packet amount determined for each charge and service type is stored and managed in a database. As described above, when the data preservation-based information is stored and managed in a packet amount, the processing process of converting the used packet amount according to the rate, which is inconvenient when storing and managing by the amount of money, can be omitted.

In addition, examples of data services that are separately stored in the packet-based prepaid information DB 260 may include a text data service, a multimedia data service, an internet direct access data service, and a VOD data service. In addition, the packet-based prepaid information DB 260 may be included in a customer management database system (WISE).

Hereinafter, the data call processing and the prepaid billing processing procedure performed in the data packet based intelligent network prepaid data service billing processing system according to the present invention will be described in detail.

4 is a flowchart illustrating a data packet based intelligent network prepaid data service billing processing procedure in order according to an embodiment of the present invention.

As shown in FIG. 4, the billing processing procedure according to the present invention is performed by interworking with a data call processing node, a billing processing node, and an intelligent network system. That is, according to an embodiment of the present invention, a data call processing and billing processing procedure for an intelligent network prepaid service subscriber in a mobile communication system will be described separately for each node.

First, the data call processing node performs a procedure for determining a call of an intelligent network prepaid data service subscriber during data call processing in a mobile communication system. That is, when the mobile communication system receives the data service request of the mobile communication terminal and transmits the call to the data call processing node, the data call processing node checks whether the corresponding mobile communication terminal subscriber subscribes to the intelligent network prepaid data service. )

If it is determined to be an intelligent network prepaid data service subscriber, interworking with the billing processing node and the intelligent network system, the data call processing is allowed and a prepaid billing processing request is performed. On the other hand, if the subscriber is not an intelligent network prepaid data service subscriber, call processing is performed according to a general data call processing process. Here, call processing and billing processing in the case of an intelligent network prepaid data service subscriber will be described, and the data call processing node transmits a message requesting a data service request to the billing processing node upon confirmation of the prepaid subscriber. At this time, the data service request request message is transmitted with the type information of the data service requested by the subscriber. Examples of this kind of service include a text data service, a multimedia data service, an internet direct access data service, and a VOD data service.

The billing processing node receives the data service request request, and transmits a message for inquiring the remaining prepaid packet information of the subscriber to the intelligent network system including the subscriber information (S30).

The intelligent network system extracts the subscriber's prepaid residual packet information from the residual packet information database for each service type according to the prepaid residual packet information inquiry request. Here, the remaining packet information database for each service type provided in the intelligent network system is a database for storing and managing the amount of usable data packets according to the data service type according to the subscriber information and the prepaid service of the intelligent network prepaid subscribers. As described above, the prepaid packet information of the subscriber is extracted from the database, and the extracted prepaid packet information includes remaining packet amount information classified for each data service.

That is, for example, the text data service is divided into 1000 packets, the multimedia data service is 5000 packets, and the Internet direct access data service is divided into 500 packets according to the intelligent network prepaid data service subscribed to the mobile communication terminal user. The information is extracted. Of course, the remaining packet amount may be changed according to the type of the intelligent network prepaid service subscribed and the packet amount already used.

Next, when the remaining packet amount information of the corresponding subscriber is extracted from the intelligent network system, a procedure of transmitting the remaining packet amount information to the charging processing node is performed. That is, the extracted residual packet amount information is provided as a response message corresponding to the inquiry request at the charging processing node. At this time, the remaining packet information transmitted to the billing processing node is provided separately according to the data service type (S50).

As such, the billing processing node compares and analyzes the remaining packet information of the subscriber who requested the data service from the intelligent network system, and determines whether to allow the data service to the corresponding subscriber. In this case, the requested data service type is identified, and the remaining packet amount of the corresponding service type is checked from the received remaining packet information. If there is a residual amount of packets in the corresponding service type, it is determined that the service is available, whereas if there is no residual packet, it is determined that the prepaid packet is exhausted and the service restriction state is unavailable.

As a result of the analysis / determination, when it is determined that the service is in the restricted state, a procedure for transmitting the data call impossible information message to the data call processing node is performed to restrict the data service of the corresponding subscriber.

On the other hand, if it is determined that the service is possible, the procedure for transmitting the data call processing permission information message to the data call processing node to allow the data service of the corresponding subscriber is performed.

In the service limited state, since data service is no longer performed, data packet charging is not performed. On the other hand, when the data call processing is confirmed that the service is available, the procedure for calculating the data packet amount used by the subscriber according to the data service is performed.

The procedure of continuously checking whether the accumulated used packet amount reaches the remaining packet amount for each data service type while calculating the used packet amount is performed. At this time, if the cumulative use packet amount reaches the remaining packet amount, it is determined that the remaining packets are exhausted, and the data call processing node is terminated by transmitting the fact that the remaining packets are exhausted. That is, the call termination instruction message is transmitted from the charging processing node to the data call processing node (S75).

On the other hand, if there is a residual packet amount, that is, if the residual packet amount has not been exhausted, the procedure of step S70 is continued to calculate the packet amount to be used continuously.

In addition, when the subscriber terminates the service while using the data service, the data call processing node terminates the data call processing and transmits a billing termination request message to the charging processing node (S77).

If the data processing is terminated when the remaining packet is exhausted or the data service is terminated by the user's request to terminate the service from the data call processing node, the charging processing node terminates the charging process in progress for the subscriber. do. In this case, the cumulative used packet amount used up to now is added, and a request packet subtraction request message is transmitted to the intelligent network system.

In the intelligent network system, a request for subtracting a used packet including cumulative packet usage information is received, and a procedure of applying the subtracted packet to a residual packet information database for each service type is applied. In this case, the subtraction process is performed for each service type classified in the database. That is, it distinguishes which data service the accumulated cumulative packet amount is, and performs a subtraction process on the remaining packet amount according to the corresponding data service type (S82).

In the intelligent network system, after performing residual packet subtraction processing to a database, a procedure of transmitting the subtracted packet information to a charging processing node is performed. In this case, residual packet information classified by data service type may be provided.

The billing processing node performs a procedure for providing the remaining packet information for each service type to the data call processing node so that the subscriber can check the remaining packet amount after using the data service. In addition, the charging processing node also provides the data call processing node with the accumulated packet amount information used so far so that the subscriber can check it (S92).

FIG. 5 is a flowchart illustrating a data call processing and packet charging processing procedure for a data packet based intelligent network prepaid subscriber according to an embodiment of the present invention for each node of a mobile communication system.

Referring to FIG. 5, a procedure of data call processing and packet charging processing performed at each node of a mobile communication system according to an embodiment of the present invention will be described.

First, GGSN requests the accounting with an 'AccountRequest' message to ACS according to the data call request.

The ACS requests information for initial access to the intelligent network data call to the corresponding intelligent network, DSCP. If the response timer expires, the call fails and the subsequent procedure between ACS and DSCP ends.

After allocating D_CallID for the call, DSCP requests the SCP to access the initial network. (3)

If the originating subscriber is a prepaid service subscriber and normal access is possible, it returns with W_CallID. If W_CallID value exists, it saves the call resource and waits for subsequent (l) DATA_CRR message of DSCP. At this time, the remaining packet volume information is informed according to the data service type. (4)

DSCP sends the information received from SCP and additional information needed for call progress to ACS, and waits for future WIN_CHA message if D_CallID value is included in win_info. (5)

ACS responds by sending 'AccountResponse' message to the charge processing request to GGSN.

If period information exists in win_info or win_cha recently received from DSCP, WIN_CHA message is transmitted according to Period (elapsed time or Pkt usage) requested by DSCP. At this time, information such as cumulative usage and cumulative usage time for each category of traffic generated from the call start time should be included. If Mode == Interim, the response timer of WIN_CHA (InterimSeq = N, ...) is not driven. Also, WIN_CHA (InterimSeq = N + 1, ...) is transmitted based on the most recent period regardless of whether win_cha (InterimSeq = N) is received or not. That is, if win_cha (InterimSeq = N) is not received, WIN_CHA (InterimSeq = N + 1, ...) should be transmitted in accordance with the most recent Period. (7)

DSCP interpolates the amount of packet used according to the data service type according to the information received from WIN_CHA to determine whether the call continues or not, and sets the appropriate value in Period to respond. At this time, if further call is not possible due to the exhaustion of the remaining packets, DSCP sends DATA_CRR message to SCP to request deduction and sends win_cha (InterimMode = Stop, deduction information, etc.) to ACS and releases call resources. The ACS repeats the WIN_CHA, win_cha procedure if [InterimMode = Interim && Period> 0], and immediately requests the end of the call with GGSN, etc. if [InterimMode = Interim && Period == 0], and proceeds with the subsequent WIN_CHA (Stop) procedure. Should proceed (8,9,10,11)

When the intelligent network data call ends, the ACS sends the last WIN_CHA (stop) message to DSCP for the call where D_CallID existed in (d) win_info. If Mode == Stop, if the response timer of WIN_CHA (InterimSeq = N, ...) expires, the call is processed as incomplete (no CDR is generated). (12)

DSCP calculates the total amount of packets used by all categories included in WIN_CHA (stop) or last WIN_CHA (interim) and requests them to be deducted from SCP. If the response timer expires, it releases the call resource after returning win_cha (ADR> 0) to ACS (or AAA).

SCP subtracts the amount of packets used from the remaining packet volume according to the subscriber's data service type and transmits the actual packet loss to DSCP. (14)

The DSCP responds by including the actual subtraction packet amount information received in data_crr in a win_cha (stop) message.

6 is a flowchart illustrating an IMS call processing and packet charging processing procedure for a data packet based intelligent network prepaid subscriber according to another embodiment of the present invention for each node of a mobile communication system.

Referring to FIG. 6, a procedure of performing IMS call processing and packet charging processing in each node of a mobile communication system according to another embodiment of the present invention will be described.

If WCDMA intelligent network subscriber uses data service, it processes through IM-SCP interworking for real-time prepaid service processing. Data service types include L3 layer billing, such as direct Internet access, and L7 layer billing, which handles application services (VOD, IMS services, games, etc.). For flow based charging, only L3 layer is charged and most L7 layers do not. Process the billing through the DSCP linkage at the back end without GNETN linkage. (A)

IM-SCP receives a CCR [Initial] message from the GGSN (b).

IM-SCP queries the available packet size to intelligent network SCP (c).

Receive packet information available by IM-SCP from intelligent network SCP (d)

IM-SCP requests the intelligent network SCP to reserve available packets for the Requested Service Unit (RSU) requested in the CCR message. (E)

(F) Receive reservation request result from IM-SCP from intelligent network SCP.

(G) transmit CCA [Grant Unit] from IM-SCP to GGSN.

Next, when GU elapsed and FUI is not received, CCR [Update] is received from GGSN. (H)

Query available packets to intelligent network SCP (i)

Receive available packet information from intelligent network SCP (j)

IM-SCP requests the reservation of available packet for the Requested Service Unit (RSU) requested in the CCR message to the intelligent network SCP, even if the USU coming to the CCR [U] is larger than the GSU lowered to the CCA during GGSN interworking. Allow. If the available packet is exhausted while the service is in progress, it waits for the CCR [T] with the FUA. DebitRequest must be received by receiving the CCR [T] for the last available packet. In such cases, incomplete calls for failure to receive a CCR [T] due to other obstacles, etc. shall be charged. (K)

Receive reservation request result from IM-SCP from intelligent network SCP. (L)

Send CCA [Grant Unit] from IM-SCP to GGSN (m)

In addition, when the GU has elapsed and FUA = Terminate or when the service is terminated, CCR [Terminate] is received from the GGSN. (N)

IM-SCP requests to subtract available packets from intelligent network SCP. (O)

Intelligent Network SCP responds with IM-SCP available packet subtraction results (p)

IM-SCP sends CCA [Cost Information] to the GGSN. (Q)

Herein, an exemplary structure of the CCR and CCA messages transmitted in the step (b) and the step (g) will be described with reference to the drawings.

7 is a diagram illustrating an example of a parameter included in a CCR [Initial] message transmitted when an IMS call is processed according to an embodiment of the present invention, and FIG. 8 is a diagram that is transmitted when an IMS call is processed according to an embodiment of the present invention. FIG. 4 shows an example of a parameter included in a CCA [Grant Unit] message.

As shown in FIG. 7, various information is included as a parameter in the CCR [Initial] message transmitted from the GGSN to the IM-SCP. This information includes subscriber information and type information of the data service requested.

Referring to FIG. 8, there are various parameters included in a CCA [Grant Unit] message transmitted from the IM-SCP to the GGSN. This information includes usable packet amount information for each service according to the remaining packet amount information for each service type provided by the intelligent network system. In addition, referring to the message illustrated in the above figure, the Result-Code of the CCA message transmits the overall processing result (for the session). The processing result for each MSCC is processed separately, and the GSU is allocated according to the balance for each SVC in the MSCC or the available packet processing result, and the processing result for each MSCC follows the result-code in the MSCC. If the remaining balance or available packet is insufficient, the corresponding GSU is allocated as much as the remaining balance or available packet, and the FUA of the FUI of the CCA message level is set to Terminate and responds. If there are no balances or free packets for additional MSCCs, the GSU of that MSCC is not allocated.

Although the present invention has been described above by means of limited embodiments and drawings, the present invention is not limited thereto and will be described below by the person skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of the claims.

The following drawings, which are attached to this specification, illustrate exemplary embodiments of the present invention, and together with the detailed description of the present invention serve to further understand the technical spirit of the present invention, the present invention includes matters described in such drawings. It should not be construed as limited to.

1 is a diagram showing the configuration of a mobile communication network system in which the present invention is implemented.

2 is a diagram illustrating a configuration of a data packet based intelligent network prepaid data service billing processing device according to an embodiment of the present invention.

3 is a diagram illustrating a configuration of a data packet based intelligent network system according to an embodiment of the present invention.

4 is a flowchart illustrating a data packet based intelligent network prepaid data service billing processing procedure in order according to an embodiment of the present invention.

5 is a flowchart illustrating a data call processing and packet charging processing procedure for a data packet based intelligent network prepaid subscriber according to an embodiment of the present invention for each node of a mobile communication system.

6 is a flowchart illustrating an IMS call processing and packet charging processing procedure for a data packet based intelligent network prepaid subscriber according to another embodiment of the present invention for each node of a mobile communication system.

7 is a diagram illustrating an example of a parameter included in a CCR [Initial] message transmitted when an IMS call is processed according to an embodiment of the present invention.

8 is a diagram illustrating an example of a parameter included in a CCA [Grant Unit] message transmitted when an IMS call is processed according to an embodiment of the present invention.

Claims (15)

Billing processing system for intelligent network prepaid service subscriber in mobile communication system, Receives a data service request request including data service type information for an intelligent network prepaid subscriber from a data call processing device, requests remaining packet information for the corresponding subscriber from an intelligent network system, and receives residual packet information for each data service type to receive the intelligent network prepaid subscriber. A billing processing device for checking whether there is a residual packet corresponding to the data service type of the data service, allowing data call processing, and calculating a packet amount used at this time; And An intelligent network system for storing and managing the amount of usable data packets according to prepaid services of intelligent network prepaid subscribers by data service type, and extracting and providing the remaining packet information for each data service type of the subscriber according to a request of the billing processing apparatus; An intelligent network prepaid data service billing processing system comprising a data packet. The method of claim 1, The charging processing device, Calculate the packet amount used for the data call processing permission, but if the accumulated packet amount reaches the remaining packet amount, it is determined that the remaining packet is exhausted and instructs call termination processing to the data call processing device. Prepaid data service billing processing system based on intelligent network. The method according to claim 1 or 2, The charging processing device, During the calculation of the packet volume according to the data call processing permission, when the charge termination request for the end of the call is received from the data call processing apparatus, the cumulative packet amount used so far is calculated and provided to the intelligent network system. Prepaid data service billing processing system based on intelligent network. The method of claim 3, wherein The intelligent network system, The data packet based intelligent network prepaid data service billing processing system, characterized in that the remaining packet amount for each data service type of the subscriber is subtracted and stored based on the amount of used packets received from the billing processing device. The method of claim 4, wherein The charging processing device, Data packet based intelligent network prepaid data service billing processing system characterized in that it receives the result of subtraction processing result of the remaining packet amount of each data service type of the subscriber from the intelligent network system to provide to the data call processing device. The method according to claim 1 or 2, The intelligent network system, Intelligent network prepayment based on data packet, characterized by storing and managing the amount of usable data packets according to the prepaid services of intelligent network prepaid subscribers for text data service, multimedia data service, internet direct access data service, and VOD data service Data Service Billing Processing System. A billing processing device for an intelligent network prepaid service subscriber in a mobile communication system, A data call processing node interworking module interworking with a data call processing node of a mobile communication system to receive a data service request request including data service type information for an intelligent network prepaid subscriber; An intelligent network system interworking module that receives the remaining packet information of the intelligent network prepaid subscriber by interworking with the intelligent network system of the mobile communication system; And Analyzing the remaining packet information for each data service type provided through the intelligent network system interworking module according to the data service request request, checking whether there is a residual packet corresponding to the requested data service type, and if present, the data call processing node interworking module. The data packet-based intelligent network prepaid data service billing processing apparatus comprising a; charge control module for allowing the data call processing according to the service request requested through, and calculates the amount of packets used at this time. The method of claim 7, wherein The charging control module, A packet exhaustion checking unit for calculating the amount of packets used, determining that the remaining packets are exhausted when the accumulated packet amount reaches the remaining packet amount, and instructing the data call processing node interworking module to terminate the data call; An intelligent network prepaid data service billing processing device comprising a data packet. 9. The method according to claim 7 or 8, The charging control module, When receiving the data service end signal from the data call processing node interworking module, a usage information checking unit for calculating the cumulative packet amount used so far to provide to the intelligent network system through the intelligent network system interworking module; An intelligent network prepaid data service billing processing apparatus based on a data packet. The method of claim 9, When the data service of the intelligent network prepaid subscriber is terminated, the remaining packet amount information received through the intelligent network system interworking module is received and provided to the user through the data call processing node interworking module to check the usage history and the remaining packet amount. Billing result information providing unit; Data packet based intelligent network prepaid data service billing processing device further comprising. An intelligent network system that manages billing information for intelligent network prepaid service subscribers in a mobile communication system, A database for storing the amount of usable data packets according to types of data services according to prepaid services of subscriber information and intelligent network prepaid subscribers; And An intelligent network control module for receiving a residual packet information inquiry request for an intelligent network prepaid subscriber from a charging processing node of a mobile communication system and extracting and providing residual packet information for each data service type of the corresponding subscriber from the database; Intelligent network system. The method of claim 11, The intelligent network control module, And a subtraction processing unit which receives the packet usage information after using the data service from the billing processing node, and subtracts the remaining packet amount for each type of data service of the corresponding subscriber in the database. A billing method for a subscriber of an intelligent network prepaid service in a mobile communication system, (a) receiving a data service request request including data service type information of an intelligent network prepaid subscriber in the billing processing apparatus, and requesting the remaining packet information for the subscriber from the intelligent network system; (b) extracting and providing the remaining packet information for each data service type of the corresponding subscriber according to the request in the intelligent network system for classifying and managing the available data packet quantity according to the data service type according to the prepaid services of the intelligent network prepaid subscribers; ; (c) receiving the remaining packet information for each type of data service, and determining whether there is a remaining packet corresponding to the type of data service requested by the subscriber; And (d) if the residual packet corresponding to the corresponding service type exists, granting the data call processing to the data call processing apparatus and calculating a packet amount used from this time; How to handle billing. The method of claim 13, Step (d) is, Calculating a used packet amount, and determining that the remaining packet is exhausted when the accumulated cumulative packet amount reaches the remaining packet amount, and instructing the data call processing device to terminate the call; How to handle prepaid data service billing based on intelligent network. The method according to claim 13 or 14, Step (d) is, Computing the amount of packets used, if the charge termination request according to the end of the call is received from the data call processing device to calculate the cumulative packet amount used so far to provide to the intelligent network system to store the balance after processing the balance deduction; An intelligent network prepaid data service billing processing method comprising a data packet.

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