KR100684193B1 - Method and system for processing circuit data call by using call routing in mobile telecommunication system - Google Patents

Abstract

A method and a system for processing a circuit data call by using call relay in a mobile communication system are provided to enable a mobile switching center to determine whether FR/PRI resources of a local station are available when a called party number of ISUP_IAM(Identity and Access Management) received from a relay station and a destination station is an IWF data call routing number, process an IWF data call when the FR/PRI resources of the local station are available, and relay the IWF data call to a route registered in the IWF data call routing number by using an ISUP when the FR/FRI resources of the local station are not available, thereby improving efficient utilization and stability of network resources of the other relay station as well as network resources of a local station. A mobile communication system for processing a circuit data call by using call relay comprises the followings: an origination mobile switching center(140) which receives an originating signal from an origination wireless station(120), determines whether frame relay/primary rate interface(FR/PRI) resources of a local station are available when the received originating signal is an IWF(Inter-Working Function) data originating signal or processes the IWF data originating signal when the FR/PRI resources of the local station are available according to a setting state of an operator, and relays the IWF data originating signal to a route registered in a routing number of the IWF data originating signal by using an ISUP(ISDN(Integrated Services Digital Network) User Part) when the FR/PRI resources of the local station are not available; a termination mobile switching center(160) which recognizes an incoming wireless data signal while incoming signals are processed, determines whether FR/PRI resources of the local station are available when the incoming signal is an IWF data incoming signal or processes the IWF data incoming signal when the FR/PRI resources of the local station are available according to the setting state of the operator, and relays the IWF data incoming signal to the route registered in the routing number of the IWF data incoming signal by using the ISUP when the FR/PRI resources of the local station are not available; and an IWF mobile switching center(150) which connects the IWF data originating signal relayed and inputted in the ISUP to the IWF by using the FR resources, and connects the IWF data incoming signal relayed and inputted in the ISUP to the IWF by using the FR and PRI resources.

Description

Method and System for Processing Circuit Data Call by Using Call Routing in Mobile Telecommunication System in Mobile Communication System

1 is a block diagram showing a schematic configuration of a mobile communication system for processing a circuit data call using a call relay according to a preferred embodiment of the present invention;

2 is a flowchart illustrating a method of processing a circuit data outgoing signal using a call relay in a mobile communication system according to an embodiment of the present invention;

3 is a flowchart illustrating a method of processing a circuit data incoming signal using a call relay in a mobile communication system according to an embodiment of the present invention;

4 is a flowchart illustrating a process of connecting an IWF data incoming call with an IWF using a FR resource and a PRI resource according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: calling terminal 112: called terminal

120: outgoing wireless base station 130: incoming wireless base station

140: outgoing mobile switching center 150: IWF mobile switching center

160: terminating mobile communication switching center 170: IWF

The present invention relates to a method and system for processing a circuit data call using call relay in a mobile communication system. More specifically, the mobile switching center can use the FR / PRI (Frame Relay / Primary Rate Interface) resource of its own station when the Called Party Number of the ISUP_IAM received from the relay station and the called station is the IWF data call routing number. If the FR / PRI resources of the own country are available, the IWF data call is processed.If the FR / PRI resources of the country are not available, the ITE is used to register the IWF data call with the IWF data call routing number. The present invention relates to a method and system for processing a circuit data call using call relay in a mobile communication system relayed by Route.

In general, when a mobile subscriber attempts to receive a wireless Internet service using a mobile communication terminal, a mobile communication service provider interworks with a manganese interworking device (IWF) or packet service. Subscriber authentication is performed through the device (PDSN: Packet Data Service Node), and upon request for wireless Internet access from the subscriber, the WAP server is basically connected via the IWF and WAP gateway, and the service is provided through the WAP page from the WAP server. I have received it.

In general, IWF refers to efficiently connecting heterogeneous networks by processing different characteristics when providing services by connecting networks having different characteristics.

Here, the characteristics refer to network attributes, capabilities, protocols, signal processing techniques, addressing methods, and the like, and by converting these characteristics to each other, it is possible to provide a service desired by a user between different networks.

Such communication network interworking may be implemented by installing an IWF having an interworking capability in a communication network or in separate equipment.

ISUP (ISDN User Part) was developed to realize ISDN, and performs signaling functions necessary to provide circuit switching and supplementary services for voice and non-voice applications of ISDN.

In addition, the ISUP also includes functions necessary for services such as existing telephone network and circuit switched data network, so that these services can be provided.

On the other hand, in the conventional mobile communication switching center, when a data call is attempted from a mobile subscriber, when the IWF and the calling mobile data path are connected in the case of a general Internet connection, the IWF connects the Internet path, and the service option of the attempted call When the call party number is translated and the incoming call is a PSDN connection or a data call to the mobile subscriber, the IWF and the called party's mobile data path and the called party's path to the called party's number are connected to each other. It provides a data service and performs a charging function for the calling mobile subscriber using the incoming call completion message.

However, the conventional mobile telecommunication switching center has a problem in that it does not require processing of unreasonable data calls by its own by using only its FR / PRI resources and does not efficiently use network resources of other relay stations.

In order to solve the above-described problem, the present invention provides a method for determining a FR / PRI (Frame Relay / Primary Rate Interface) resource of a local station when a called party number of ISUP_IAM received from a relay station and a called station is an IWF data call routing number. Determining availability, processing the IWF data call if the FR / PRI resources of the country are available, and using ISUP to call the IWF data call to the IWF data call routing number if the FR / PRI resources of the country are not available. It is an object of the present invention to provide a method and system for processing a circuit data call using call relay in a mobile communication system relaying to a registered RTE (RouTE).

Accordingly, according to a first object of the present invention, an interworking device (IWF) that performs an interfacing function for interworking with a wireless base station and a wired communication network that transmits an incoming signal according to a call request signal from a mobile communication terminal: A mobile communication system for processing a circuit data call using a call relay including an inter-working function (hereinafter referred to as 'IWF'), wherein an outgoing signal is received from an originating radio base station, and the received outgoing signal transmits IWF data. In case of a call, it is determined whether the FR (Primary Relay Interface) / PRI (Primary Rate Interface) resource is available or the IWF data origination signal is processed when the FR / PRI resource of the own station is available according to the operator's setting state. And routing the IWF data originating signal to the IWF data originating signal using an ISUP when the FR / PRI resource of the own country is not available. Originating mobile switching center to relay processing in the RTE (RouTE) registered in the call; Recognizing that the incoming call is a wireless data incoming call, and if the incoming call is an IWF data incoming call, it is determined whether the FR (Frame Relay) / PRI (Primary Rate Interface) resource of the own station is available or according to the setting state of the operator. The IWF data incoming signal is processed when the FR / PRI resource of is available, and the IWF data incoming signal is routed to the IWF data incoming signal using ISUP when the FR / PRI resource of the host is not available. A terminating mobile telecommunication switching center for relay processing to an RTE registered in the RTE; And connect the IWF data originating signal relayed to the ISUP with the IWF using the FR resource, and connect the IWF data incoming signal relayed to the ISUP with the IWF using the FR resource and the PRI resource. Provides an IWF mobile communication switching center.

Another embodiment of determining the use of the FR / PRI resources is a method in which an operator directly uses the FR / PRI resources of his or her station or uses the ISUP relay function.

According to a second object of the present invention, a wireless base station transmitting an incoming signal according to a call request signal from a mobile communication terminal, an IWF performing an interfacing function for interworking with a wired communication network, and an IWF relayed to an ISUP. IWF mobile communication switching station for connecting with the IWF using FR resources to process data originating signals and for connecting with the IWF using FR resources and PRI resources for processing IWF data incoming signals received by the ISUP. A method of processing a circuit data call using a call relay in a mobile communication system, comprising: (a) receiving the incoming signal from the wireless base station; (b) determining whether the FR / PRI resource of the own country is available when the received signal is an IWF data call; And (c) relaying the IWF data call to the RTE (RouTE) registered in the IWF data call routing number using the ISUP when the FR / PRI resource of the own country is not available in step (b). Provide steps.

Another embodiment of determining the use of the FR / PRI resources is a method in which an operator directly uses the FR / PRI resources of his or her station or uses the ISUP relay function.

According to a third object of the present invention, there is provided a wireless base station for transmitting an incoming call according to a call request signal from a mobile communication terminal, an IWF for performing an interfacing function for interworking with a wired communication network, and the FR resources of the local station; If the PRI resource is not available, the IWF data incoming in a mobile communication system including an incoming mobile telecommunication switching station relaying the IWF data incoming signal to the RTE (RouTE) registered in the IWF data incoming signal routing number using ISUP. CLAIMS 1. A method of connecting a call to IWF, FR and PRI, the method comprising the steps of: (a) receiving an ISUP_IAM from the terminating mobile telecommunication switching station for setting up the FR resources; (b) connecting the IWF data incoming signal received through the received ISUP information of the IWF_IAM with the IWF using the FR resource; (c) sending an ISUP_ACM including PRI group information to the destination mobile telecommunication switching center; (d) receiving an ISUP_IAM from which the PRI group information for establishing a PRI path is set, from the terminating mobile communication switching center; And (e) connecting the incoming IWF data incoming signal to the IWF using the PRI resource.

Another embodiment of determining the use of the FR / PRI resources is a method in which an operator directly uses the FR / PRI resources of his or her station or uses the ISUP relay function.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a block diagram showing a schematic configuration of a mobile communication system for processing a circuit data call using a call relay according to a preferred embodiment of the present invention.

A mobile communication system for processing a circuit data call using a call relay according to the present invention includes a calling terminal 110, a called terminal 112, a calling radio base station 120, a called radio base station 130, and a calling mobile communication switching center ( 140), an IWF mobile communication switching center 150, an incoming mobile communication switching center 160, and an inter-working device (IWF: inter-working function (IWF) hereinafter).

The calling terminal 110 and the called terminal 112 operate as a normal mobile communication terminal, that is, a mobile communication modem interface including a mobile communication modem such as a CDMA 2000 modem for wirelessly connecting to a mobile communication network to perform a mobile communication service. Has built in. In addition, the mobile communication terminal not only provides a voice call function for performing a normal voice call through wireless communication with different mobile communication terminals connected to the mobile communication network, but also provides a data service by accessing the Internet through a provided web browser. A terminal for automatically performing a session establishment procedure and transmitting / receiving packet data according to a session establishment request from a mobile communication network.

The source radio base station 120 and the destination radio base station 130 are configured to include a base station transmission system (BTS) 122 and 132 and a base station controller (BSC) 124 and 134. do.

The base station transmitters 122 and 132 receive an incoming signal from the mobile communication terminal through a traffic channel among the signal channels, and transmit the received start signal to the base station controllers 124 and 134. In addition, the base station controllers 124 and 134 control the base station transmitters 122 and 132, and perform various call processing functions such as support for incoming signal processing and message processing of the base station transmitters 122 and 132. The base station controllers 124 and 134 transmit the incoming and outgoing signals received through the base station transmitters 122 and 132 to the mobile communication switching centers 140, 150 and 160.

The mobile communication switching centers 140, 150, and 160 are provided with a plurality of electronic exchanges to perform basic and additional service processing, subscriber signal processing, location registration procedure and handoff procedure, and interworking with other networks.

To this end, the mobile switching center (140, 150, 160) is a centralized function of the access switching subsystem (ASS) to perform the distributed call processing function, the Interconnection Network Subsystem (INS) to perform the centralized call processing function, operation and maintenance It may include a subsystem such as a Central Control Subsystem (CCS) in charge, a Location Registration Subsystem (LRS) for storing and managing information on a mobile subscriber. In addition, the mobile communication switching center 140, 150, 160 includes an Asynchronous Transfer Mode (ATM) switch (not shown) to transmit data in a packet method of a cell unit to increase transmission speed and efficiency of line use. can do.

In the embodiment of the present invention, for convenience of description, the mobile communication switching centers 140, 150, and 160 are divided into an outgoing mobile communication switching station 140, an IWF mobile communication switching station 150, and a terminating mobile communication switching center 160, but outgoing mobile communication is performed. Switching station 140, IWF mobile communication switching center 150 and incoming mobile communication switching center mean conventional mobile switching centers 140, 150 and 160.

The outgoing mobile communication switching center 140 according to the preferred embodiment of the present invention can use the FR (primary relay interface) / primary rate interface (PRI) resources of the local station when the outgoing signal received from the outgoing wireless base station 120 is the IWF data outgoing signal. Call type to distinguish Service Option, Called Party Number and Calling for relaying to ISUP when FR / PRI resources of own country are not available according to the operator's setting status or judging ISUP information including (Call Type) is set, and the ISUP_IAM including the set ISUP information is transmitted to the IWF mobile communication switching center 150.

The IWF mobile switching center 150 according to the preferred embodiment of the present invention receives the ISUP_IAM from the outgoing mobile switching center 140 and uses the FR resource to transmit the IWF data originating signal received according to the received ISUP_IAM using the FR resource. ), And transmits the response message ISUP_ACM to the calling mobile communication switching center 140.

Parameter processing method for connecting the IWF data originating signal with the IWF 170 using the FR resource is shown in Table 1.

Setup for FR ISUP_IAM Calling Party Number Calling Party Number Called Party Number UUI> IWFCDSInformation> Digits Call Type in Setup_Info UUI> IWFCDSInformation> Call Type Service Option in Setup_Info UUI> IWFCDSInformation> Service Option ESN in Setup_Info Filling with H'00 My subscriber number in Setup_Info 10 Digits of Calling Party Number (displayed as 01022223333-> 1022223333) Channel_Info Does not contain

The mobile communication switching center 140, 150, 160 according to the preferred embodiment of the present invention performs a function of generating, deleting, and changing the IWF data call routing number to the called number of the IWF data call. For example, the generation of an IWF data call routing number uses a command such as "CRTE-PFX-IWF" to generate a PFX in the IWF, and the deletion of an IWF data call routing number is used to delete a PFX in the IWF. Use a command such as -PFX-IWF, and change the IWF data call routing number using a command such as "CHG-PFX-IWF" to change the PFX to the IWF. On the other hand, PFX is a number for designating an intelligent network control device (not shown) in the number and location information of the calling terminal 110, so that only one can be registered. In addition, IWF data call routing number, RTE relationship and RTE management follows the existing voice call processing method and RTE management.

According to a preferred embodiment of the present invention, the mobile communication switching center (140, 150, 160) determines whether the FR / PRI resource of the own station is available when the called number of the received ISUP_IAM is the IWF data call routing number, and the FR of the own station. If I / PRI resource is available, IWF data call is processed.If own FR / PRI resource is not available, ISUP is used to relay IWF data call to RTE (RouTE) registered in IWF data call routing number. .

Another embodiment of determining the use of FR / PRI resources is a method in which an operator directly uses his / her own FR / PRI resources or sets up to use the ISUP relay function.

The IWF mobile switching center 150 according to the preferred embodiment of the present invention processes two ISUP calls for establishing FR resources and PRI resources for one incoming call processing.

The method of handling a call using two ISUPs is shown in Tables 2 and 3.

ISUP_IAM for FR Contents Calling Party Number Sender's MDN Called Party Number IWF PFX UUI> IWFCDSInformation> FR / PRI FR UUI> IWFCDSInformation> Call Type Incoming UUI> IWFCDSInformation> Service Option Recipient's Negotiated SO UUI> IWFCDSInformation> Digits Recipient's MDN

ISUP_IAM for PRI Contents Calling Party Number Sender's MDN Called Party Number IWF PFX UUI> IWFCDSInformation> FR / PRI PRI UUI> IWFCDSInformation> Call Type Incoming UUI> IWFCDSInformation> Service Option Recipient's Negotiated SO UUI> IWFCDSInformation> Digits Recipient's MDN

In addition, the IWF mobile communication switching center 150 according to the preferred embodiment of the present invention connects the IWF data incoming signal received by the ISUP with the IWF 170 using the FR resource and the PRI resource.

Parameter processing method for connecting the IWF data incoming signal with the IWF 170 using the FR resource is shown in Table 4, and the parameter processing method for connecting the IWF data incoming signal with the IWF 170 using the PRI resource. Is shown in Table 5.

Setup for FR ISUP_IAM Calling Party Number UUI> IWFCDSInformation> Digits (Incoming MDN) Called Party Number UUI> IWFCDSInformation> Digits (Incoming MDN) Call Type in Setup_Info UUI> IWFCDSInformation> Call Type Service Option in Setup_Info UUI> IWFCDSInformation> Service Option ESN in Setup_Info Filling with H'00 My subscriber number in Setup_Info 10 Digits of Calling Party Number Channel_Info Does not contain

Setup for pri ISUP_IAM Calling Party Number Calling Party Number (Calling Party MDN) Called Party Number UUI> IWFCDSInformation> Digits (Incoming MDN) Call Type in Setup_Info UUI> IWFCDSInformation> Call Type Service Option in Setup_Info UUI> IWFCDSInformation> Service Option ESN in Setup_Info Filling with H'00 My subscriber number in Setup_Info 10 Digits of Calling Party Number Channel_Info Does not contain

The terminating mobile communication switching center 160 according to the preferred embodiment of the present invention transmits the ISUP_IAM to the IWF mobile switching center 150 to connect the IWF data incoming signal with the IWF 170 by using the FR resource.

Subsequently, the IWF mobile communication switching center 150 connects the incoming IWF data incoming signal through the ISUP information of the IWF_IAM received from the incoming mobile communication switching station 160 with the IWF 170 using the FR resource, and the PRI group information. ISUP_ACM including the transmits to the destination mobile communication switching center (160).

Subsequently, the terminating mobile communication switching center 160 according to the preferred embodiment of the present invention transmits the ISUP_IAM set with PRI group information to the IWF mobile switching center 150 to set the PRI path, and receives the ISUP_IAM and receives the ISUP_IAM. 150 connects the incoming IWF data incoming call with the IWF 170 using PRI resources.

Accordingly, the IWF mobile switching center 150 connects the incoming IWF data incoming signal with the IWF 170 using the FR resource and the PRI resource.

In the outgoing mobile communication switching center 140 according to the preferred embodiment of the present invention, the generation of the IWF data call charging is generated according to the conventional generation of the IWF data call charging, but includes a method of generating the non-billing CDR.

The generation of IWF data call billing in the terminating mobile communication switching center 160 according to a preferred embodiment of the present invention is generated based on incoming or outgoing billing, and after the end of the IWF data call, call type, dialed digits, service options, called number and It includes a method of generating by reflecting the ISUP information including the packet byte (Packet Byte). Here, the incoming call or the incoming charge includes a method of always generating regardless of whether the incoming call or the incoming charge flag is set.

In addition, the terminating mobile communication switching center 160 according to a preferred embodiment of the present invention uses the FR resource and the outgoing route of the PRI resource to simultaneously process the incoming and outgoing charges of the FR resource for the IWF data call processing. It includes a method of generating one or more relay charges as a reference.

The IWF 170 performs an interfacing function for interworking with a wired communication network including a mobile communication network, the Internet, a public switched telephone network, a Packet Switched Public Data Network (PSPDN), and the like.

2 is a flowchart illustrating a method of processing a circuit data outgoing signal using a call relay in a mobile communication system according to an exemplary embodiment of the present invention.

2, the outgoing mobile communication switching center 140 receives an outgoing signal from the outgoing wireless base station 120 (S210).

The originating mobile communication switching center 140 determines whether the FR (Frame Relay) / PRI (Primary Rate Interface) resource of the own station is available when the received signaling is the IWF data signaling (S220).

In step S220, the outgoing mobile communication switching center 140 relays the IWF data outgoing signal to the RTE (RouTE) registered in the IWF data call routing number using ISUP when the FR / PRI resource of the local station is not available (S230). ). Here, the originating mobile communication switching center 140 transmits ISUP_IAM to the IWF mobile communication switching center 150 for setting of the FR resource. Subsequently, the IWF mobile communication switching center 150 connects the IWF data originating signal received through the ISUP information of the received IWF_IAM with the IWF 170 using the FR resource. In addition, the originating mobile communication switching center 140 receives ISUP_ACM / ISUP_ANM, which is a response message for the connection. Here, ISUP_ACM / ISUP_ANM includes PRI (Primary Rate Interface) information.

The originating mobile communication switching center 140 processes the IWF data origination signal from the own station when the FR / PRI resource of the own station is available in step S220 (S222).

3 is a flowchart illustrating a method of processing a circuit data incoming signal using a call relay in a mobile communication system according to an exemplary embodiment of the present invention.

The terminating mobile communication switching center 160 receives a signal indicating that the data is an incoming signal from the terminating wireless base station 130 that recognizes that the incoming terminal 112 is a data incoming signal in the incoming signal processing process (S310).

The terminating mobile communication switching center 160 determines whether the FR (Frame Relay) / PRI (Primary Rate Interface) resource of the local station is available in case of an IWF data incoming signal (S320).

The terminating mobile communication switching center 160 relays the IWF data incoming signal to the RTE (RouTE) registered in the IWF data call routing number using ISUP when the FR / PRI resource of the local station is not available in step S320 (S330). ).

The terminating mobile communication switching center 160 processes the IWF data incoming signal in the own station when the FR / PRI resource of the own station is available in step S320 (S322).

4 is a flowchart illustrating a process of connecting an IWF data incoming call with an IWF using a FR resource and a PRI resource according to an embodiment of the present invention.

Referring to FIG. 4, the IWF mobile communication switching center 150 receives ISUP_IAM from the terminating mobile communication switching center 160 for setting of the FR resource (S410).

The IWF mobile communication switching center 150 connects the incoming IWF data incoming signal through the received ISUP information of the IWF_IAM with the IWF 170 using the FR resource (S420).

The IWF mobile switching center 150 transmits the ISUP_ACM including the PRI group information to the terminating mobile communications switching center 160 (S430).

The IWF mobile switching center 150 receives the ISUP_IAM from which the PRI group information for PRI path setting is set from the terminating mobile communications switching center 160 (S440).

The IWF mobile communication switching center 150 connects the incoming IWF data incoming signal with the IWF 170 using the PRI resource (S450).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, by processing the circuit data call using the call relay in the mobile communication system, there is an effect of increasing the efficient use and stability of the network resources of other relay stations as well as the network resources of the own station.

Claims (15)

Inter-working function (IWF), which performs an interfacing function for interworking with a wireless base station and a wired communication network that transmits an incoming signal according to a call request signal from a mobile communication terminal (hereinafter referred to as 'IWF') In a mobile communication system for processing a circuit data call using a call relay comprising a), Receive an outgoing signal from an originating radio base station, and if the received outgoing signal is an IWF data outgoing signal, determine whether the FR (Frame Relay) / PRI (primary rate interface) resource of the own country is available or according to the operator's setting state. The IWF data originating signal is processed when the FR / PRI resource is available, and the IWF data originating signal is routed to the IWF data originating signal using ISUP when the FR / PRI resource is not available. An outgoing mobile telecommunication switching center for relay processing to an RTE registered in the RTE; Recognizing that the incoming call is a wireless data incoming call, and if the incoming call is an IWF data incoming call, it is determined whether the FR (Frame Relay) / PRI (Primary Rate Interface) resource of the own station is available or according to the setting state of the operator. The IWF data incoming signal is processed when the FR / PRI resource of is available, and the IWF data incoming signal is routed to the IWF data incoming signal using ISUP when the FR / PRI resource of the host is not available. A terminating mobile telecommunication switching center for relay processing to an RTE registered in the RTE; And The IWF data originating signal relayed to the ISUP is connected to the IWF using the FR resource, and the IWF data incoming signal relayed to the ISUP is connected to the IWF using the FR resource and the PRI resource. IWF mobile switching center A mobile communication system for processing a circuit data call using a call relay comprising a. The method of claim 1, The FR / PRI resource is a mobile communication system for processing a circuit data call using a call relay, characterized in that using the FR / PRI resources of the host or the ISUP relay function according to the setting from the operator. The method of claim 1, The originating mobile communication switching center transmits ISUP information including a service option, a call party number, and a call type for distinguishing an incoming / outgoing call for relaying the IWF data outgoing call to the ISUP. And the ISUP_IAM including the set ISUP information is transmitted to the IWF mobile communication switching center, wherein the circuit data call is processed using a call relay. The method of claim 1, The IWF mobile communication switching center determines the outgoing signal through the ISUP_IAM received from the outgoing mobile communication switching center, and connects the incoming IWF data outgoing signal with the IWF using the FR resource, and responds to the connection. And ISUP_ACM / ISUP_ANM to the originating mobile communication switching center. The method of claim 1, The originating mobile telecommunication switching center, the called mobile telecommunication switching center and the IWF mobile telecommunication switching station perform a function of generating, deleting and changing an IWF data call routing number to the called number of an IWF data call. Mobile communication system for processing circuit data calls. The method of claim 1, The IWF mobile communication switching center connects the IWF data incoming signal received through the ISUP information of the ISUP_IAM received from the incoming mobile communication switching station with the IWF using the FR resource, and connects the ISUP_ACM including the PRI group information to the ISUP. A mobile communication system for processing a circuit data call using a call relay, which is transmitted to a mobile communication switching center. The method of claim 1, The terminating mobile telecommunication switching center transmits the ISUP_IAM set with the PRI group information to the IWF mobile telecommunication switching station for establishing a PRI path, and the IWF mobile telecommunication switching center receiving the ISUP_IAM receives the received IWF data incoming signal from the PRI. A mobile communication system for processing a circuit data call using a call relay, characterized in that it is connected to the IWF using a resource. The method of claim 1, The IWF mobile communication switching center connects the IWF data incoming signal relayed to the ISUP with the IWF using the FR resource and the PRI resource, and processes a circuit data call using a call relay. system. The method of claim 1, And generating the IWF data call charging at the originating mobile communication switching station using a non-billing CDR. The method of claim 1, The generation of the IWF data call billing in the terminating mobile communication switching center is generated based on incoming or outgoing billing, and after the end of the IWF data call, the method is generated by reflecting the ISUP information. Mobile communication system that handles data calls. The method of claim 10, The incoming call or the incoming call is always generated regardless of whether the incoming call or the incoming charge flag (Flag) is a mobile communication system for processing a circuit data call using a call relay, characterized in that the. The method of claim 1, The terminating mobile telecommunication switching center generates one or more relay charging based on the FR resource when the outgoing route of the FR resource and the PRI resource are simultaneously occupied to generate relay charging and incoming charging for IWF data incoming signal processing. A mobile communication system for processing a circuit data call using a call relay, characterized in that it comprises a method. FR resource to process IWF data origination signal relayed to IWF and ISUP performing interfacing function for interworking with wireless base station and wired communication network to transmit incoming signal according to call request signal from mobile communication terminal Call relay in a mobile communication system including an IWF mobile communication exchange station for connecting with the IWF and for connecting with the IWF using a FR resource and a PRI resource for processing an IWF data incoming signal received by the ISUP. In the method for processing a circuit data call using (a) receiving the incoming signal from the wireless base station; (b) determining whether the FR / PRI resource of the own country is available when the received signal is an IWF data call; And (c) relaying the IWF data call to an RTE (RouTE) registered in an IWF data call routing number using the ISUP when the FR / PRI resource of the own country is not available in step (b). Method for processing a circuit data call using a call relay in a mobile communication system comprising a. The method of claim 13, After step (c), (d) processing the IWF data call in the home country if the FR / PRI resources of the home country are available in step (b). Method for processing a circuit data call using a call relay in a mobile communication system, characterized in that it further comprises. Wireless base station that transmits an incoming call according to a call request signal from a mobile communication terminal, an IWF that performs an interfacing function for interworking with a wired communication network, and the FR resource of the home country and the PRI resource are not available. The IWF data incoming signal is connected to the IWF, FR, and PRI in a mobile communication system including an incoming mobile communication switching station which relays the IWF data incoming signal to the RTE (RouTE) registered in the IWF data incoming signal routing number using ISUP. In the way, (a) receiving an ISUP_IAM from the terminating mobile communication switching center for setting of the FR resource; (b) connecting the IWF data incoming signal received through the received ISUP information of the IWF_IAM with the IWF using the FR resource; (c) sending an ISUP_ACM including PRI group information to the destination mobile telecommunication switching center; (d) receiving an ISUP_IAM from which the PRI group information for establishing a PRI path is set, from the terminating mobile communication switching center; And (e) connecting the incoming IWF data incoming call with the IWF using the PRI resource; Method for connecting the IWF data incoming signal to the IWF and FR and PRI in a mobile communication system comprising a.

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