KR100249495B1 - Equipment and its method of verifying the function of next-generation mobile communication system - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to an apparatus and a method for verifying the function of a next generation mobile communication system.

2. The technical problem to be solved by the invention

The present invention provides a functional verification device for verifying the functions of each component, such as a service controller, a home location register, and an authentication center of a next generation mobile communication system using a commercial computer and an Asynchronous Transfer Mode (ATM) communication module card. The purpose is to provide the method.

3. Summary of Solution to Invention

The present invention relates to the information flow standard between network elements of the next generation mobile communication system of the International Telecommunication Union (ITU-T) and the distributed functional plane function of Q.1224, which is the next generation intelligent network recommendation of the International Telecommunication Union (ITU-T). Verify the .1228 intelligent network application protocol (INAP) and also function as a service controller (SCP), home location register (HLR) and authentication center (AC) in verifying the functionality of mobile stations, base stations and control stations in next generation mobile communication systems. Can be performed.

4. Important uses of the invention

The present invention is used in the next generation mobile communication system.

Description

Functional verification device and method of next generation mobile communication system

The present invention relates to a function verification apparatus and method for verifying the function of the next generation mobile communication system (IMT-2000), and in particular, a next generation mobile device using a commercial computer and an asynchronous transfer mode (ATM) communication module card. A functional verification apparatus and method for verifying the function of each component, such as a service controller, a home location register and an authentication center of a communication system.

In the development of the third generation mobile communication system, a function verification device or a simulator for checking the function of each component is essential.

However, in the conventional second generation mobile communication system, the digital communication system (DCS) and the personal communication service (PCS), etc., the apparatus for verifying the functions of the service controller, the home location register and the authentication center, etc. are configured in each processing unit. Functional verification was performed in pieces. That is, a functional verification device or a simulator has been developed mainly for performing unit functions such as a location register or an authentication processor.

In addition, the network connection of a conventional system, that is, matching with a mobile communication switch and an intelligent additional device, is a message transfer part 1 (MTP1), an MTP2, an MTP3, and a signal connection control unit (SCCP) using a common line signaling method. The Control Part) and the Transaction Capacities Application Part (TCAP) were used.

Accordingly, it generates and provides a message based on the recommendations of the International Telecommunication Union (ITU-T) (Q.2931 and Q.2932), and asynchronous transmission mode (ATM) as a communication base for broadband service. In the next generation mobile communication system using the scheme, the conventional function verification apparatus as described above cannot be used, and therefore, it is necessary to implement a new function verification apparatus.

Accordingly, the present invention provides the information flow standard (Q.FIF: FPLMTS Information Flow) and the International Telecommunication Union (ITU-T) of the next generation mobile communication system (IMT-2000) of the International Telecommunication Union (ITU-T). Q.1224's distributed function plane function and Q.1228's Intelligent Network Application Protocol (INAP), and also verify the function of mobile station, base station and control station in next generation mobile communication system. Provides functional verification device and method of next generation mobile communication system that can perform functions such as Service Control Point (SCP), Home Location Register (HLR) and Authentication Center (AC) Its purpose is to.

1 is a configuration diagram of an apparatus for verifying functionality of a next generation mobile communication system according to the present invention;

2A to 2E are flowcharts illustrating one embodiment of a function verification method in a next generation mobile communication system according to the present invention;

* Explanation of symbols for the main parts of the drawings

11: user matching unit 12: subscriber information management unit

13: subscriber information operation unit

14: subscriber information access support and database

15: service control unit 16: authentication processing unit

17: location registration processing unit 18: service management unit

19: ATM communication processing unit 20: control unit

According to an aspect of the present invention, there is provided a function verification apparatus of a next generation mobile communication system, comprising: user matching means for processing various input / output data to support mutual interaction with a user; Subscriber information management means connected to the user matching means to perform functions of creating, managing and removing various databases and tables, and generating related data of various tables; Subscriber information operation means for operating data in a table generated by said subscriber information management means in accordance with information input from said user matching means; A subscriber information comprising a database storing various kinds of information, wherein the subscriber information manipulation means operates the data of the database, the subscriber information management means manages the data of the database, or the subscriber related information of the database. Access support means; Service control means for manipulating the service information of the database through the subscriber information access support means and performing a service control function; Authentication processing means for manipulating authentication-related information in the database through the subscriber information access support means and processing an authentication function for determining whether the mobile station and the subscriber are legally used; Location registration processing means for manipulating the location registration related information of the database through the subscriber information access support means and performing a location registration function; Service management means for processing a data change request input through said user matching means, managing said database via said subscriber information access support means, and managing data records of subscribers used in said service control means; Asynchronous communication mode (ATM) communication processing means for communicating with the component using a message queue and transmitting and receiving a message with an external device using an asynchronous delivery mode (ATM) scheme; And control means for monitoring each component and controlling each component to process a corresponding function.

In addition, the method of the present invention, in the functional verification method applied to the functional verification apparatus of the next-generation mobile communication system, is required to create / modify / remove a specific table to generate / modify / delete a specific table and then output the result. First step; A second step of requesting inquiry / modification / addition / deletion of specific data and querying / modifying / adding / deleting specific data and outputting the result; A third step of transmitting a message through an asynchronous communication mode (ATM) communication processor to perform an operation of service-related data after detecting or requesting an intelligent network service, and then determining and performing an operation of the service according to the result; A fourth step of transmitting an authentication request message through the asynchronous communication mode (ATM) communication processing unit to perform an authentication operation and then performing authentication according to a result if an authentication situation is detected or an authentication is requested; And detecting a location registration situation and a location confirmation situation by transmitting a location registration request message through the asynchronous communication mode (ATM) communication processing unit to perform location registration related data, and then perform an operation according to the result. A fifth step is included.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention;

1 is a configuration diagram of an embodiment of a function verification apparatus for a next generation mobile communication system according to the present invention.

The functional verification apparatus according to the present invention is a service controller simulator, a home location register simulator, and an authentication center simulator for verifying the recommendations of the International Telecommunication Union (ITU-T) in the next generation mobile communication system (IMT-2000), that is, the international electrical In Network Functions of Q.1224, Recommendation of ITU-T, and Intelligent Network Application Protocol Processing Verifier of Q.1228, Recommendation of ITU-T, and FPLMTS Information Flow (Q.FIF). As a recommended mobile management function verifier, it performs internal communication using Message Queuing (IPC) provided by a commercial computer and an operating system (OS), and performs external communication in an asynchronous delivery mode (ATM) method.

This functional verification device is a functional verification device developed prior to the commercial aircraft production of the next generation mobile communication system (IMT-2000), and it is possible to use a commercial computer in advance using functions and protocols recommended by the International Telecommunication Union (ITU-T). By verifying, it is possible to prevent an error in manufacturing a commercial device in advance, and also to perform the functions of an actual service controller, a home location register, and an authentication center in verifying the functions of a mobile station, a base station, a control station, and a mobile communication switching center. That is, the functional elements of the service controller of the next generation mobile communication system (IMT-2000), the functional elements of the home location register, the functional elements of the authentication center, and the relationship (protocol) between them are recommended by the International Telecommunication Union (ITU-T). Verify.

Next, a detailed configuration of a function verification apparatus for a next generation mobile communication system according to the present invention will be described.

The user interface unit 11 is a functional unit supporting mutual interaction with a user. The user interface unit 11 is a user unit that manipulates subscriber data, outputs a processing flow of an intelligent network call, outputs a state of each processor, outputs a state of another physical element, and processes each unit. Performs functions such as output of measurement / statistical data related to performance function and manipulation of data necessary for network operation.

The subscriber information management unit 12 uses the functions provided by the user matching unit 11 to create, manage, and remove a database and each table related to subscriber information and additional services, and to generate a database and each table related to authentication of a mobile station. It creates, manages, and removes the database related to location registration, which is an essential function element in the mobile communication system, and manages, removes, and generates related data of the table.

The subscriber information operation unit 13 is a function unit for manipulating data in a table generated by the subscriber information management unit 12, and provides the user matching unit 11 with subscriber service information, authentication information of the mobile station, and location registration information. Performs a function to search, change, add or delete data using.

The subscriber information access support unit and the database 14 are intended to manipulate subscriber related information, that is, service information, authentication related information, and location registration related information by the service control unit 15 or the authentication processing unit 16 and the location registration processing unit 17. When the subscriber information operation unit 13 wants to manipulate data or when the subscriber information management unit 12 wants to manage data, the module supports these functions.

When the service control unit 15 notifies the service control unit 15 of the detection situation in the mobile communication exchange that detects the intelligent network service request, the service control unit 15 operates the functional elements defined in the distributed functional plane of Q.1224 of the International Telecommunication Union (ITU-T). And the International Telecommunication Union (ITU-T) using a service control function (SCF) that performs the functions of the intelligent network application protocol (INAP) of Q.1228 and a module provided by the subscriber information access support unit (14). This is a functional unit that performs interworking with the service data function (SDF) recommended in. In addition, it is a functional unit that performs interoperation with a Specialized Resource Function (SRF) which performs a function of collecting data through interworking with a subscriber through a subscriber's voice recognition and reserved recording voice.

The authentication processing unit 16 is a function unit for processing an authentication function for determining whether the mobile station and the subscriber are legally used, and is authenticated based on the data transmitted to the mobile communication switching center when a call is requested, when the mobile station is registered, and when an intelligent network service is requested. Perform the function. This function unit drives the information flow and authentication algorithm of the authentication function defined in the International Telecommunication Union (ITU-T) Q.FIF (FPLMTS Information Flow) standard.

The position registration processing unit 17 is a function unit for performing a position registration function, which is an essential function of mobile communication, and is a function unit for storing the position of the mobile station (base station to which the mobile station belongs) in a specific area of the network without interruption. This function unit interoperates with the base station and the mobile switching center organically, and when the mobile station recognizes that its location has changed and requests a location registration request to the base station, the request information is sent to the location registration processing unit 17 of the apparatus through the switching station. The location registration processor 17 changes the location information of the mobile station in real time based on this information. When an incoming call is requested to the mobile station based on the location information, the mobile communication exchange station makes a paging request to the base station by inquiring in real time the location of the mobile station.

The service management unit 18 is a function unit for managing data records of subscribers used for the service control unit 15 and intelligent network-related network elements and network functions. The subject managing the service is divided into a network provider and a service subscriber. The service management unit 18 may centrally manage a service related database. The service subscriber may change his or her service related data using the service manager 18. In addition, the service management unit 18 is connected to all physical entities of the intelligent network, and is in charge of managing the entire intelligent network, and functionally, the service management function (SMF: Q.1224) of the International Telecommunication Union (ITU-T). And Service Management Access Functions (SMAFs).

The asynchronous transfer mode (ATM) communication processor 19 transmits all signals and subscriber information in an asynchronous transfer mode (ATM) to satisfy the broadband service of the next generation mobile communication system (IMT-2000). To this end, the functional verification apparatus according to the present invention is configured based on the asynchronous transfer mode (ATM) method of communication. The asynchronous communication mode (ATM) communication processing unit 19 communicates with the processing unit in the function verification apparatus by using a message queue, and communicates with the mobile telecommunication switching center and the intelligent additional device by Q.SAAL (ITU-T). Send and receive messages using Signaling ATM Adaptation Layer) and Asynchronous Transfer Mode (ATM), and as the Layer 3, the message transfer unit 3 (MTP3) of the common line signaling method, which is a Layer 3 protocol of the existing intelligent network. Message Transfer Part3) and Signaling Connection Control Part (SCCP).

The controller 20 monitors a message queue, which is an internal communication means, and generates and initializes each processor, and controls an associated function of each processor that performs a function such as restarting by detecting an abnormality of each processor. In addition, each processing unit transmits a message and a reception timer for receiving a reception message is driven. At this time, a function of monitoring whether the timer is driven is also performed.

2A to 2E are flowcharts illustrating an embodiment of a function verification method in a next generation mobile communication system according to the present invention.

2A is a flowchart of a subscriber information management process in a next generation mobile communication system according to the present invention.

First, when a user requests creation / change / removal of a specific table through the user matching unit 11 (21), the subscriber information manager 12 receives the request message (22) to create / change / select a specific table. After performing the processing for removal, the execution result is transmitted to the database 14 (23). Then, after the database 14 generates / modifies / removes a specific table according to the received execution result (24), the database 14 notifies the user matching unit 11 of the result through the subscriber information management unit 12 (25, 26). . Then, the user matching unit 11 outputs the performance result to the user (27).

2B is a flowchart of a subscriber information manipulation process in a next generation mobile communication system according to the present invention.

First, when a user requests inquiry / change / addition / deletion of specific data through the user matching unit 11 (31), the subscriber information operation unit 13 receives the corresponding request message (32) to inquire / After performing the processing for changing / adding / deleting, the execution result is transmitted to the database 14 (33). Then, the database 14 inquires / changes / adds / deletes specific data according to the received execution result (34) and notifies the user matching unit 11 of the result to the user matching unit 11 through the subscriber information operation unit 13 (35). , 36). Then, the user matching unit 11 outputs the performance result to the user (37).

2C is a flowchart of a service control process in a next generation mobile communication system according to the present invention.

First, when the mobile communication switching center detects or receives an intelligent network service (41), the mobile communication switching center transmits the request message to the asynchronous communication mode (ATM) communication processing unit 19 (42), and the asynchronous communication mode (ATM) communication processing unit 19 The request message is classified and transmitted to the service control unit 15 (43). Then, the service control unit 15 requests an operation (view / change / add / delete) of the service related data to the database 14 (44), and the database 14 operates (view / change) of the service related data. / Add / delete), the result is notified to the service control unit 15 (45). Then, the service control unit 15 determines the future operation based on the service type and the result of the notification (46), and then notifies the mobile communication switching center through the asynchronous communication mode (ATM) communication processing unit 19 of the performance result (46). 47,48). Then, the mobile communication switching center performs the subsequent operation of the intelligent network service according to the received result (49). At this time, if necessary, it is performed in association with the intelligent additional device (50).

2d is a flowchart illustrating an authentication process in a next generation mobile communication system according to the present invention.

First, when the mobile communication exchange detects an authentication situation or receives an authentication request (51), the mobile communication switching center transmits the corresponding authentication request message to the asynchronous communication mode (ATM) communication processing unit 19 (52), and the asynchronous communication mode (ATM) communication processing unit ( 19 classifies the authentication request message and transmits the authentication request message to the authentication processing unit 16 (53). Then, the authentication processing unit 16 requests an operation (view / change / add / delete) of the authentication related data to the database 14 (54), and the database 14 operates (view / change) of the authentication related data. / Add / delete), the result is notified to the authentication processing unit 16 (55). Then, after the authentication processing unit 16 performs authentication by driving a predetermined authentication algorithm (56), the authentication processing result is notified to the mobile communication switching center through the asynchronous transfer mode (ATM) communication processing unit 19 (57, 58). . Then, the mobile communication switching center performs the operation according to the received authentication result and interworks with the base station (59).

2E is a flowchart of a location registration process in a next generation mobile communication system according to the present invention.

First, when the mobile communication switching center detects or receives the location registration situation and the location confirmation situation (61), the mobile communication switching center transmits the corresponding location registration request message to the asynchronous communication mode (ATM) communication processing unit 19 (62). ATM) The communication processing unit 19 classifies the location registration request message and transmits it to the location registration processing unit 17 (63). Then, the location registration processing unit 17 requests the database 14 to manipulate (view / change / add / delete) the location registration-related data (64), and the database 14 manipulates the location registration-related data ( After the inquiry / change / add / delete is performed, the result is notified to the location registration processing unit 17 (65). Then, the position registration processing section 17 notifies the mobile communication switching center of the performance result via the asynchronous transfer mode (ATM) communication processing section 19 (66, 67). Then, the mobile communication switching center performs the operation according to the received result and interworks with the base station (68).

Functional verification apparatus according to the present invention as described above, can be applied to a function that can simulate the functions of the service controller, home location register and the authentication center using a commercial computer function and asynchronous transmission mode (ATM) communication method. That is, it can be used as a verifier for verifying Mobile Application Protocol (MAP) or Intelligent Network Application Protocol (INAP) of intelligent network in systems such as DCS, PCS, WLL, GMPCS, and also In the communication network, it can be applied as a tester of service control function and authentication function of a wired subscriber connecting an asynchronous transmission mode (ATM) network.

In addition, the present invention may be applied as a function of a service control device or an authentication center for verifying an intelligent network service in a B-ISDN.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

As described above, the present invention relates to the information flow standard (Q.FIF: FPLMTS Information Flow) and the International Telecommunication Union (ITU-) of the next generation mobile communication system (IMT-2000) of the International Telecommunication Union (ITU-T). Validate T.'s next-generation intelligent network recommendation, the distributed functional plane function of Q.1224 and the Intelligent Network Application Protocol (INAP) of Q.1228, and also verify the functionality of mobile stations, base stations and control stations in next-generation mobile communication systems. ITU-T, which is currently in progress, by allowing it to perform functions such as Service Control Point (SCP), Home Location Register (HLR) and Authentication Center (AC). Standard of the next generation mobile communication system can be fully verified before commercial product development, which can reduce trial and error when implementing commercial products, thereby reducing development time and cost. It is possible to reduce the cost and secure a high quality system at an early stage, thereby greatly improving the productivity of the communication service.

Claims (9)

In the functional verification device of the next generation mobile communication system, User registration means for processing various input / output data to support mutual interaction with a user; Subscriber information management means connected to the user matching means to perform functions of creating, managing and removing various databases and tables, and generating related data of various tables; Subscriber information operation means for operating data in a table generated by said subscriber information management means in accordance with information input from said user matching means; A subscriber information comprising a database storing various kinds of information, wherein the subscriber information manipulation means operates the data of the database, the subscriber information management means manages the data of the database, or the subscriber related information of the database. Access support means; Service control means for manipulating the service information of the database through the subscriber information access support means and performing a service control function; Authentication processing means for manipulating authentication-related information in the database through the subscriber information access support means and processing an authentication function for determining whether the mobile station and the subscriber are legally used; Location registration processing means for manipulating the location registration related information of the database through the subscriber information access support means and performing a location registration function; Service management means for processing a data change request input through said user matching means, managing said database via said subscriber information access support means, and managing data records of subscribers used in said service control means; Asynchronous communication mode (ATM) communication processing means for communicating with the component using a message queue and transmitting and receiving a message with an external device using an asynchronous delivery mode (ATM) scheme; And Control means for monitoring each component and controlling each component to process a corresponding function Functional verification device comprising a. The method of claim 1, The control means, It monitors the message queue, which is an internal communication means and the generation and initialization of each component, controls the related functions of each component which performs restart function by detecting the abnormality of each component, and sends a message from each component. And a function of monitoring whether or not a timer that is driven to transmit / receive is performed. The method according to claim 1 or 2, The user matching means is a function unit that supports mutual interaction with a user, and measures measurement related to manipulation of subscriber data, output of processing flow of an intelligent network call, output of status of each processor, output of status of other physical elements, and performance of each processor. Perform functions such as outputting statistical data and manipulating data required for network operation, The subscriber information management means uses a function provided by the user matching means to create, manage, and remove a database and each table related to subscriber information and supplementary services, and to create and manage a database related to authentication of a mobile station and each table. , Create, manage, and remove the database and each table related to the removal and location registration, and generate the relevant data of the table, The subscriber information operation means is a function unit for manipulating data in a table generated by the subscriber information management means, by using a function of providing subscriber service information, authentication information of a mobile station and location registration information by the user matching means. Perform the functions of viewing, changing, adding and deleting data, The subscriber information access support means operates subscriber related information, that is, service information, authentication related information, and location registration related information in the service control means, the authentication processing means or the location registration processing means, or in the subscriber information operation means. Or to manage data in the subscriber information management means, The service control means, when notified of the detection situation from the mobile communication switching station that detects the intelligent network service request, performs a service control function (SCF: Service Function) that performs the operations of the functional elements defined in the distributed functional plane and functions of the intelligent network application protocol (INAP). Control function) and a module provided by the subscriber information access support means to perform a function of interworking with a service data function (SDF) and interworking with a subscriber through a voice recognition of a subscriber and a reserved recorded voice. Interoperate with Specialized Resource Function (SRF), which performs the function of collecting data through The authentication processing unit is a function unit for processing an authentication function for judging whether the mobile station and the subscriber are legally used, based on data transmitted to the mobile communication switching center when a call is requested, when a mobile station is registered for a location, and when an intelligent network service is requested. Perform authentication functions, The location registration processing means is a function unit that performs a location registration function which is an essential function of mobile communication, and stores the location of the mobile station in a specific area of the network without interruption, The service management means is a function unit for managing data records of subscribers used for the service control means and intelligent network-related network elements and network functions, and allows a network provider to centrally manage a service-related database. Allow you to change data about your services, The asynchronous communication mode (ATM) communication processing means communicates with each of the components by using a message queue, and transmits and receives a message by using an asynchronous delivery mode (ATM) method with the external device, and uses a common line signaling method as a layer 3. The apparatus for verifying a function of using a message transfer unit 3 (MTP3) and a signal connection control unit (SCCP). In the functional verification method applied to the functional verification device of the next generation mobile communication system, A first step of requesting creation / modification / removal of a specific table and outputting a result after generating / modifying / removing a specific table; A second step of requesting inquiry / modification / addition / deletion of specific data and querying / modifying / adding / deleting specific data and outputting the result; A third step of transmitting a message through an asynchronous communication mode (ATM) communication processor to perform an operation of service-related data after detecting or requesting an intelligent network service, and then determining and performing an operation of the service according to the result; A fourth step of transmitting an authentication request message through the asynchronous communication mode (ATM) communication processing unit to perform an authentication operation and then performing authentication according to a result if an authentication situation is detected or an authentication is requested; And When the location registration situation and the location confirmation situation are detected or requested, a location registration request message is transmitted through the asynchronous transfer mode (ATM) communication processing unit to perform location registration related data, and then perform an operation according to the result. 5 steps Functional verification method comprising a. The method of claim 4, wherein The first step is, When the user requests creation / change / removal of a specific table through the user matching unit, the subscriber information management unit receives the request message and performs processing for creation / change / removal of a specific table and then transmits the execution result to the database. Sixth step; A seventh step in which the database notifies the user matching unit of the result via the subscriber information management unit after creating / modifying / removing a specific table according to the received execution result; And An eighth step of outputting an execution result to the user by the user matching unit Functional verification method comprising a. The method of claim 5, The second step, When a user requests inquiry / change / addition / deletion of specific data through the user matching unit, the subscriber information operation unit receives the request message and performs processing for inquiry / change / add / delete specific data and then the database. A ninth step of transmitting a result of the execution to a network; A tenth step of the database inquiring / modifying / adding / deleting specific data according to the received execution result and notifying the user matching unit of the result through the subscriber information operation unit; And An eleventh step of outputting a result of execution to the user by the user matching unit Functional verification method comprising a. The method according to claim 5 or 6, The third step, A twelve step of detecting, by the mobile communication switching center, the intelligent network service and transmitting a corresponding request message to the asynchronous delivery mode communication processor, and classifying and transmitting the request message to the service controller; A thirteenth step, wherein the service control unit requests an operation of the service related data to the database, and the database notifies the service control unit of the result after performing the operation of the service related data; A fourteenth step in which the service control unit notifies the mobile communication switching center of the execution result through the asynchronous communication mode (ATM) communication processing unit after determining and performing a subsequent operation based on the service type and the received result; And The fifteenth step of performing a subsequent operation of the corresponding intelligent network service according to the received result; Functional verification method comprising a. The method of claim 7, wherein The fourth step, When the mobile communication switching center detects an authentication situation or receives an authentication request, the mobile communication switching center transmits the corresponding authentication request message to the asynchronous communication mode (ATM) communication processing unit, and the asynchronous communication mode (ATM) communication processing unit classifies the authentication request message to the authentication processing unit. Transmitting to the sixteenth step; A seventeenth step in which the authentication processing unit requests the database to operate the authentication-related data, and the database notifies the authentication processing unit of the result after performing the operation of the authentication-related data; An eighteenth step in which the authentication processing unit notifies the mobile communication switching center via the asynchronous communication mode (ATM) communication processing unit after performing authentication by driving a predetermined authentication algorithm; And The mobile communication switching center performs a corresponding operation according to the received authentication result; Functional verification method comprising a. The method of claim 8, The fifth step, The mobile communication switching center transmits a corresponding location registration request message to the asynchronous communication mode (ATM) communication processing unit when detecting or receiving a location registration situation and a location confirmation situation, and the asynchronous communication mode (ATM) communication processing unit is related to location registration. A 20th step of classifying the request message and transmitting the classified message to the location registration processing unit; The twenty-first step of requesting the database to manipulate the location registration-related data, and wherein the database notifies the location registration processor of the result after performing the operation of the location registration-related data; And Step 22, wherein the location registration processing unit notifies the mobile communication switching center of an execution result through the asynchronous communication mode (ATM) communication processing unit, and the mobile communication switching center performs a corresponding operation according to the received performance result and interworks with a base station; Functional verification method comprising a.

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