KR19990049296A - Functional verification device and method 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 apparatus and method for verifying the function of each component such as mobile station, base station and control station of next generation mobile communication system using commercial computer and asynchronous transfer mode (ATM) communication module card. In this.

3. Summary of Solution to Invention

The present invention verifies the interface protocol between the CAI and the control station-switching station of the next generation mobile communication system of the International Telecommunication Union, and also verifies the functions of the switching station, home location register and service controller of the next generation mobile communication system. By making it possible to perform functions such as control station, the standard of next generation mobile communication system can be fully verified before commercial product development, which can reduce trial and error when implementing commercial product, thereby shortening development lead-time. It is possible to reduce costs and to secure a high quality system at an early stage, thereby greatly improving the productivity of the communication service.

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 mobile station, a base station and a control station 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 necessary.

However, in the conventional second generation mobile communication system, the digital communication system (DCS) and the personal communication service (PCS), and the like, the device for verifying the functions of the mobile station, the base station, the control station, and the like is configured in units of processing units, and functions in pieces. Verification was performed. In other words, a functional verification device or a simulator has been developed mainly for performing unit functions such as a call generator or a handover processor.

In addition, the conventional functional verification apparatus generates and provides a message for "IS-95" by using a CAI (Common Air Interface) protocol in each processing unit such as a mobile station input processing unit, and other systems, that is, the exchange station and the local area network ( LAN or High Level Data Link Control (HDLC).

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 verifies the A-Interface protocol between the CAI (Common Air Interface) and the control station-switching station of the next generation mobile communication system of the International Telecommunication Union (ITU-T), It is an object of the present invention to provide an apparatus and method for verifying a function of a next-generation mobile communication system capable of performing functions such as a mobile station, a base station, and a control station when verifying functions of an exchange station, a home location register, and a service controller.

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 mobile station information input / output unit 12 call signal processing unit

13 incoming call processing unit 14 handover detection and processing unit

15: mobility management unit 16: intelligent network service request unit

17: ATM communication processing unit 18: control unit

The apparatus of the present invention for achieving the above object is, in the functional verification apparatus of the next generation mobile communication system, receiving information for the standard message configuration of the next generation mobile communication system from the outside to verify the correctness of the syntax to use the internal message queue Mobile station information input / output means for transmitting through a path and outputting whether a response message to the transmitted message is received to the outside; Outgoing signal processing means for delivering an outgoing signal request message transmitted from said mobile station information input / output means to an external switching center through an asynchronous communication mode (ATM) communication processing means; Incoming signal processing means for receiving an incoming request message from the external switching station through the asynchronous transfer mode (ATM) communication processing means and transmitting a paging response and an incoming acceptance message of the mobile station to the mobile station information input / output means; Handover detection and processing means for detecting and processing a handover situation from said mobile station information input / output means or for transmitting the detected handover information to said external switching center via said asynchronous transfer mode (ATM) communication processing means; Mobile station management for receiving the mobility management information of the mobile station from the mobile station information input / output means, generating a message according to the standard message type of the next generation mobile communication system, and transmitting the message to the external switching center through the asynchronous communication mode (ATM) communication processing means. Way; The asynchronous communication mode (ATM) communication processing means for transmitting and receiving a message with each component using a message queue and for transmitting and receiving a message with an external switching center using an asynchronous transmission mode (ATM) scheme; And control means for monitoring each component and controlling each component to process a corresponding function.

In addition, in the functional verification method applied to the functional verification apparatus of the next generation mobile communication system, after receiving an outgoing call request message and transmitting it to an external switching station in an asynchronous transfer mode (ATM) method, an outgoing response message is sent from the external switching station. A first step of receiving and outputting in an asynchronous transfer mode (ATM) method; Receiving the incoming request message from the external exchange in an asynchronous delivery mode (ATM) mode, verifying the incoming message, generating and verifying an incoming response message, and transmitting the incoming request message to the external exchange in an asynchronous delivery mode (ATM); Two steps; Generating a handover message by transmitting a handover message to the external switching center in asynchronous transfer mode (ATM), and receiving and outputting a resource allocation message from the external switching center in asynchronous transfer mode (ATM); Three steps; And receiving the mobility management information, generating a message according to the standard message type of the next generation mobile communication system, transmitting the message to the external switching center in an asynchronous transfer mode (ATM), and then sending a response message from the external switching center to the asynchronous transmission mode (ATM). A fourth step of receiving and outputting the same;

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 present invention relates to a functional verification apparatus that can test the standard specifications of the next-generation mobile communication system, and based on the recommendations of the International Telecommunication Union (ITU-T), standard CAI such as mobile station function, base station function and control station function Verify. That is, the present invention verifies a protocol that defines each function of the functional elements of the next generation mobile communication system and the relationship between them. At this time, communication between the respective components in the functional verification apparatus according to the present invention is carried out through the message queue.

Then, the mobile station information is input through the mobile station information input / output unit 11 implemented as a graphical user interface (GUI) and transmitted to the base station through the message queue, and the transferred information is exchanged through the control station and the ATM communication processing unit 17. Each functional element and protocol of the next generation mobile communication system is verified.

That is, the functional verification apparatus according to the present invention is a mobile station simulator, a base station simulator, a control station simulator, etc., which verify the recommendations of the International Telecommunication Union (ITU-T) for the next generation mobile communication system. It is implemented with message generation and verifier and handover message generation and verifier recommended by Q.FIF (FPLMTS Information Flow), and communicates internally using message queue provided by commercial computer and operating system (OS), External communication is performed using Asynchronous Transfer Mode (ATM).

As described above, the functional verification apparatus according to the present invention is a functional verification apparatus developed before manufacturing a commercial aircraft of a next generation mobile communication system, and uses a commercial computer in advance for the functions and protocols recommended by the International Telecommunication Union (ITU-T). By verifying the same, it is possible to prevent an error in manufacturing a commercial device in advance, and can also be used as a device that performs functions such as an actual mobile station, a base station, and a control station when verifying functions such as an exchange station and a home location register. That is, the present invention verifies the mobile station functional elements, base station functional elements, and control station functional elements and their relationships (protocols) of the next generation mobile communication system recommended by the International Telecommunication Union (ITU-T).

Now, look at the configuration and operation of the functional verification apparatus according to the present invention.

The mobile station information input / output unit 11 is a function unit for inputting information for constructing Q.2931 and Q.2932 messages of the International Telecommunication Union (ITU-T), and is implemented as a graphical user interface (GUI). Information input through the mobile station information input / output unit 11 is transferred to each processing unit through an internal passage using a message queue. In addition, the mobile station information input / output unit 11 verifies the syntax of the inputted information and transmits the correct message to each processing unit. If the response message is not received until the reception timer ends by driving the reception timer for the transmitted message, The mobile station information transmission failure is displayed via the mobile station information output unit.

The call signal processing unit 12 transfers the Q.2931 message transmitted from the mobile station information input / output unit 11 to an external switching center through the asynchronous transfer mode (ATM) communication processing unit 17 to process the call request request of the mobile station. It is wealth. At this time, the Q.2931 message transmitted from the originating signal processing unit 12 to the ATM communication processing unit 17 is transmitted through the message queue.

The incoming call processing unit 13 receives the incoming request message of Q.2931 of the International Telecommunication Union (ITU-T) from the external switching center through the ATM communication processing unit 17 using the message queue, thereby paging the mobile station. And an incoming call acceptance message to the mobile station information input / output unit 11 using a message queue to process incoming calls.

The handover detection and processing unit 14, when the mobile station information input / output unit 11 creates a handover (Softer, Soft, Hard) situation, i.e., a mobile station moving state, by using a graphical user interface (GUI), the handover. The handover detection unit that detects the situation transmits the detected information to the handover processing unit through the message queue, and if the handover processing unit that has received the handover information is a softer handover situation, the handover processing unit performs its own processing and soft In the case of a hard handover situation, this message is transmitted to an external switching center via the ATM communication processing unit 17 to handle the handover situation. When the exchange receives the handover message, it allocates an appropriate resource to the mobile.

The mobile station manager 15 receives information necessary for processing functions for mobility management of the mobile station, i.e., location registration, location change, authentication, and encryption, from the mobile station information input / output unit 11 through a message queue, thereby obtaining an international telecommunication union (ITU). -T) Create a message using the FACILITY message type of Q.2932 and transmit it to the ATM communication processing unit 17 through the message queue to be transmitted to an external switching center.

The intelligent network service requester 16 receives the intelligent network service related information from the mobile station information input / output unit 11 when the mobile station requests the intelligent network service, and transmits this message to the ATM communication processor 17 by using a message queue. To the exchange.

The ATM communication processing unit 17 communicates with each component in the function verification apparatus using a message queue, and communicates with an external switching center using a Q. Signaling ATM Adaptation Layer (Q.SAAL) and an asynchronous transmission mode (ATM) method. Send and receive messages. This is because all signals and subscriber information are transmitted in an asynchronous transfer mode (ATM) scheme in order to satisfy the broadband service of the next generation mobile communication system. To this end, in the present invention, the function verification device uses an asynchronous transfer mode (ATM) scheme. Based on the communication.

The control unit 18 monitors the creation and initialization of each processing unit and a message queue, which is an internal communication means, detects an abnormality in each processing unit, restarts it, and transmits a message and receives a response message from each processing unit. The reception timer for driving is a function unit for controlling each component to perform a function for monitoring whether the timer is running.

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 illustrating a transmission process in a next generation mobile communication system according to the present invention.

First, when the mobile station information input / output unit 11 transmits information necessary for generating a Q.2931 message to the call signal processing unit 12 (41), the call signal processing unit 12 sends a Q.2931 message (setup) as an originating message. After transmitting to the ATM communication processor 17 (42), the ATM communication processor 17 converts the received setup message into an ATM cell and transmits it to an external exchange 19 (43). The Q.2931 call response message is received (44) and transmitted to the mobile station information input / output unit 11 via the call signal processor 12 (45). The mobile station information input / output unit 11 then outputs the Q.2931 call response message to the outside (46).

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

First, when the ATM communication processing unit 17 receives a paging message in the form of an ATM cell from an external switching center 19 (47), it transmits the incoming message to the incoming signal processing unit 13 (48). Then, the incoming call processor 13 verifies the incoming message and transmits it to the mobile station information input and output unit 11 (49), and the mobile station information input and output unit 11 generates a paging response message. The call is sent to the incoming signal processor 13 (50). Then, the incoming call processing unit 13 verifies the incoming response message and then transmits it to the ATM communication processing unit 17 (51), and the ATM communication processing unit 17 transmits the incoming response message in the form of an ATM cell to the external switching center 19. Send by

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

First, the mobile station information input / output unit 11 inputs information related to the handover and then transmits the information to the handover detection unit 20 (53), and the handover detection unit 20 detects the handover information and then handovers it. It transmits to the processing part 21 (54). Then, the handover processing unit 21 generates a handover message and transmits the generated handover message to the ATM communication processing unit 17 (55). The ATM communication processing unit 17 converts the handover message into an ATM cell to an external switching station 19. After transmission (56), if a resource allocation message is received from an external exchange 19 (57), the resource allocation message is transmitted to the handover processor 21 (58). Then, the handover processing unit 21 notifies the mobile station information input / output unit 11 via the handover detecting unit 20 after allocating the resource (59), and the mobile station information input / output unit 11 allocates the resource. The information is output to the outside (60).

2d is a flowchart of a mobility management process in a next generation mobile communication system according to the present invention.

First, the mobile station information input / output unit 11 inputs information necessary for mobility management of the mobile station, and then transmits it to the mobility management unit 15 (61). The mobility management unit 15 is in the form of a Q.2932 convenience message. After the message is generated, it is transmitted to the ATM communication processing unit 17 (62). Then, the ATM communication processing unit 17 converts the convenience message into an ATM cell and transmits it to the external switching center 19 (63), and then receives the response message transmitted after processing the corresponding message at the external switching center 19 (64). ) Is transmitted to the mobility management unit 15 (65). Then, the mobility management unit 15 processes the response message and transmits it to the mobile station information input / output unit 11 (66), and the mobile station information input / output unit 11 outputs the response status to the outside (67).

2E is a flowchart of an intelligent network service request processing process in a next generation mobile communication system according to the present invention.

First, the mobile station information input / output unit 11 inputs the intelligent network service request information and then transmits it to the intelligent network service requesting unit 16 (68), and the intelligent network service requesting unit 16 forms a convenience message of Q.2932. After generating the message, the message is transmitted to the ATM communication processing unit 17 (69). Then, the ATM communication processing unit 17 converts the convenience message into an ATM cell and transmits it to the external switching center 19 (70), and then receives a response message transmitted after processing the corresponding message at the external switching center 19 (71). And transmits it to the intelligent network service request unit 16 (72). Then, the intelligent network service request unit 16 processes the response message and transmits it to the mobile station information input / output unit 11 (73), and the mobile station information input / output unit 11 outputs the response status to the outside (74).

The functional verification apparatus as described above may be applied as a function capable of simulating functions of a mobile station, a base station, and a control station using a commercial computer function and an asynchronous transfer mode (ATM) communication method. That is, it can be used as a verifier for verifying its own CAI or A-Interface in systems such as DCS, PCS, WLL, and GMPCS, and also as a call processing tester for wired subscribers connecting asynchronous transmission mode (ATM) networks in wired communication networks. Can be applied.

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 verifies the Common Air Interface (CAI) and the A-Interface protocol between the control station and the switching station of the next generation mobile communication system of the International Telecommunication Union (ITU-T), and further, the next generation mobile communication system. It is possible to carry out the functions of mobile station, base station and control station when verifying functions such as switching station, home location register and service controller. It can be fully verified before product development, reducing trial and error when implementing commercial products, which can shorten development time, reduce costs, and secure high-quality systems early on. There is an effect that can greatly improve the productivity of the service.

Claims (12)

In the functional verification device of the next generation mobile communication system, Mobile station for receiving information for standard message composition of next generation mobile communication system from outside and verifying correctness of syntax and transmitting through internal passage using message queue, and outputting whether to receive response message for transmitted message to outside Information input / output means; Outgoing signal processing means for delivering an outgoing signal request message transmitted from said mobile station information input / output means to an external switching center through an asynchronous communication mode (ATM) communication processing means; Incoming signal processing means for receiving an incoming request message from the external switching station through the asynchronous transfer mode (ATM) communication processing means and transmitting a paging response and an incoming acceptance message of the mobile station to the mobile station information input / output means; Handover detection and processing means for detecting and processing a handover situation from said mobile station information input / output means or for transmitting the detected handover information to said external switching center via said asynchronous transfer mode (ATM) communication processing means; Mobile station management for receiving the mobility management information of the mobile station from the mobile station information input / output means, generating a message according to the standard message type of the next generation mobile communication system, and transmitting the message to the external switching center through the asynchronous communication mode (ATM) communication processing means. Way; The asynchronous communication mode (ATM) communication processing means for transmitting and receiving a message with each component using a message queue and for transmitting and receiving a message with an external switching center using an asynchronous transmission 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, Intelligent network service requesting means for receiving the intelligent network service related information from the mobile station information input / output means and transmitting it to the external switching center through the asynchronous communication mode (ATM) communication processing means. Functional verification device further comprising a. The method according to claim 1 or 2, The mobile station information input and output means, Receives information for constructing Q.2931 and Q.2932 messages of the International Telecommunication Union (ITU-T) using a graphical user interface (GUI), verifies the correctness of the syntax, Sends the message to the component, and if the response message is not received until the end of the reception timer by driving the reception timer for the transmitted message, the mobile station information transmission failure display using the graphical user interface (GUI) to the outside Functional verification apparatus. The method according to claim 1 or 2, The handover detection and processing means, When the mobile station information input / output means generates a handover (softer, soft, hard) situation using a graphical user interface (GUI), the handover detection unit detecting the handover situation is handed over the message queue. If the handover processing unit transmits the handover information and the handover processing unit receives the softer handover situation, it processes itself. If the softover or hard handover situation, the message is asynchronously delivered. A mode verifying apparatus, characterized in that the handover situation is processed by transmitting to the external switching center through an ATM communication processing means. The method according to claim 1 or 2, The control means, Monitors the creation and initialization of each component and the message queue, detects and restarts when an abnormal condition occurs in each component, and monitors whether or not the reception timer driven by each component is driven. And controlling each of the components to perform the function verification apparatus. In the functional verification method applied to the functional verification device of the next generation mobile communication system, A first step of receiving an outgoing call request message and transmitting it to an external switching center in an asynchronous transmission mode (ATM) method and receiving and outputting an outgoing response message from the external switching center in an asynchronous transmission mode (ATM) method; Receiving the incoming request message from the external exchange in an asynchronous delivery mode (ATM) mode, verifying the incoming message, generating and verifying an incoming response message, and transmitting the incoming request message to the external exchange in an asynchronous delivery mode (ATM); Two steps; Generating a handover message by transmitting a handover message to the external switching center in asynchronous transfer mode (ATM), and receiving and outputting a resource allocation message from the external switching center in asynchronous transfer mode (ATM); Three steps; And Receives mobility management information, generates a message according to the standard message type of the next generation mobile communication system, transmits it to the external switching center in an asynchronous transfer mode (ATM) method, and then sends a response message from the external switching center to the asynchronous transfer mode (ATM). The fourth step of receiving and outputting Functional verification method comprising a. The method of claim 6, After receiving the service-related information, generates a message according to the standard message type of the next generation mobile communication system and transmits the message to the external exchange in an asynchronous transfer mode (ATM) method, and then sends a response message from the external exchange to the asynchronous transfer mode (ATM). The fifth step of receiving and outputting Functional verification method further comprising a. The method according to claim 6 or 7, The first step is, When the mobile station information input / output unit transmits information necessary for generating a Q.2931 message to the call signal processor, the call signal processor transmits a Q.2931 message (setup), which is an outgoing message, to the asynchronous communication mode (ATM) communication processor. step; The asynchronous transfer mode (ATM) communication processor converts the received setup message into an asynchronous transfer mode (ATM) cell and transmits the received setup message to the external exchange, and then receives a Q.2931 origination response message from the external exchange. A seventh step of transmitting to the mobile station information input / output unit through a call signal processor; And An eighth step of outputting the Q.2931 origination response message to the mobile station; Functional verification method comprising a. The method according to claim 6 or 7, The second step, A sixth step of transmitting an incoming message to the incoming signal processing unit when the asynchronous communication mode (ATM) communication processing unit receives the incoming message from the external switching center in the form of an asynchronous delivery mode (ATM) cell; A seventh step of transmitting the incoming call processor to the mobile station information input / output unit after verifying the incoming message, and generating the incoming response message to the mobile station information input / output unit; And After the incoming call processing unit verifies the incoming response message, the incoming call processing unit transmits the incoming response message to the asynchronous communication mode (ATM) communication processing unit, and the asynchronous delivery mode (ATM) communication processing unit sends the incoming response message in the form of an asynchronous delivery mode (ATM) cell. Eighth step of sending to the exchange Functional verification method comprising a. The method according to claim 6 or 7, The third step, A sixth step of transmitting the mobile station information input / output unit to the handover detector after inputting information related to the handover, and transmitting the handover detector to the handover processor after detecting the handover information; The handover processing unit generates a handover message and transmits it to the asynchronous delivery mode (ATM) communication processing unit, and the asynchronous delivery mode (ATM) communication processing unit converts the handover message into an asynchronous delivery mode (ATM) cell and the external switching station. A seventh step of transmitting a resource allocation message to the handover processor when receiving a resource allocation message from the external switching center after the transmission; And An eighth step of notifying the mobile station information input / output unit of the content after the resource allocation unit allocates the resource to the mobile station information input / output unit through the handover detection unit, and outputting the resource allocation information to the outside; Functional verification method comprising a. The method according to claim 6 or 7, The fourth step, The mobile station information input / output unit inputs the information necessary for mobility management of the mobile station and then transmits the information to the mobility management unit. A sixth step of transmitting; The asynchronous delivery mode (ATM) communication processing unit converts a convenient message into an asynchronous delivery mode (ATM) cell, transmits the message to the external switching center, and then receives a response message transmitted after processing the corresponding message at the external switching center, thereby receiving the mobility management unit. Transmitting to the seventh step; And An eighth step of the mobility management unit processing a response message and transmitting the response message to the mobile station information input / output unit, and outputting a response status to the mobile station information input / output unit; Functional verification method comprising a. The method of claim 7, wherein The fifth step, The mobile station information input / output unit inputs the intelligent network service request information to the intelligent network service requesting unit, and the intelligent network service requesting unit generates a message in the form of a convenience message of Q.2932. A sixth step; The asynchronous delivery mode (ATM) communication processing unit converts a convenient message into an asynchronous delivery mode (ATM) cell and transmits the message to the external switching center, and then receives a response message transmitted after processing the corresponding message by the external switching center to receive the intelligent network service. A seventh step of transmitting to the requesting unit; And The intelligent network service requesting unit processes the response message and transmits the response message to the mobile station information input / output unit, and the mobile station information input / output unit outputs the response status to the outside; Functional verification method comprising a.