KR20000042820A - Method for supplying short message service in mobile communication system using different protocols - Google Patents

Abstract

PURPOSE: A method for supplying a short message service(SMS) in a mobile communication system is provided, so that global system for mobile communications(GSM) network subscribers and international standard(IS)-41 network subscribers can receive transmitted short messages or transmit the short messages to a short message service center, regardless of networks registered by the GSM network subscribers and the IS-41 subscribers, by interworking a GSM network with an IS-41 network having different SMS supplying procedures and mobile application part(MAP) protocols. CONSTITUTION: A method for supplying a short message service(SMS) between a global system for mobile communications(GSM) network and an international standard(IS)-41 network using different protocols, respectively, comprises the steps of: transforming a short message transmitted to a SMS center of the IS-41 network from a mobile terminal of the GSM into a short message form utilized in the IS-41 network, and transforming an international mobile subscriber identity(IMSI) of the GSM network into a mobile identification number(MIN) and an electronic serial number(ESN) of the IS-41 network, then transmitting the short message to the SMS center; transforming the transmitted short message into a short message form used in the GSM network, and transforming the MIN and the ESN into the IMSI, then transmitting the short message to a SMS center of the GSM network; transforming the MIN and the ESN into the IMSI to identify subscriber information, and transforming the short message of the IS-41 network into the short message form of the GSM network, then transmitting the short message to a corresponding subscriber; transforming the IMSI into the MIN and the ESN to identify a subscriber location; and transforming the short message of the GSM network into the short message form of the IS-41 network, and then transmitting the short message to the subscriber.

Description

Method of providing short message service in mobile communication system using different protocols

The present invention relates to a method for providing a short message service in a mobile communication system using different mobile communication protocols, and a recording medium therefor, and more particularly, to a European GSM (GSM) based on a time division multiple access (TDMA) scheme. System for Mobile communications) A method for providing a short service to a dual mode service subscriber roaming in an opposite network between an IS-41 (International Standard) cellular mobile communication network based on a Code Division Multiple Access (CDMA) scheme and a mobile communication network. This relates to the recording medium.

Short Message Service (SMS) in a mobile communication network refers to a service for exchanging short alphanumeric messages between a short terminal and a mobile communication network. Here, the short terminal refers to all devices capable of transmitting and receiving short messages, such as a mobile terminal, a data terminal, or a short service dedicated terminal, and may exist in a network or may exist outside the network. In order to provide a short message, a message delivery characteristic, a message management characteristic, and a message delivery characteristic must be provided by a network, and these characteristics are distributed to a mobile communication network and a short message service center.

The GSM mobile communication network and the IS-41 mobile communication network each have different Mobile Application Part (MAP) protocols and short service providing procedures, and each is provided only in its own mobile communication service area.

The procedure of providing a short service in a GSM mobile communication network is as follows.

First, referring to the procedure for sending a short message from the mobile terminal, if the MSC in the area where the mobile terminal is currently registered receives the short message from the terminal, the service access authority is checked to the visitor location registration device (VLR), and then interworked. The message is delivered to the short service center via the Interworking Mobile Switching Center (IWMSC). The short message service center sends the message through the interworking mobile switching center (IWMSC) to the mobile switching center (MSC).

Next, looking at the short message reception procedure to the mobile terminal, the short message stored in the short message service center is delivered to the Gateway Mobile Switching Center (GMSC), and the gateway mobile switching center is the home location registration device (HLR). After inquiring the location of the terminal to the mobile communication center (MSC) sends a message. The mobile switching center (MSC) requests subscriber information from the visitor location registration device (VLR), receives a paging command from the visitor location registration device (VLR), and then pages the subscriber and receives a response from the terminal. Transfer to location registration device (VLR). The Mobile Switching Center (MSC) forwards the short message to the Terminal Mobile Switching Center (GMSC), which forwards it to the Short Message Service Center (SMC).

On the other hand, after the mobile terminal fails to transmit the short message in a state in which the mobile terminal cannot receive the short message, when the mobile terminal accesses the network for location registration or call processing, the short message is received again. Notify the service center.

Next, the procedure for providing a short service in an IS-41 mobile communication network is as follows.

The basic operation is almost similar to the GSM network, and the mobile point-to-point short forwarding operation in the IS-41 mobile communication network is a procedure for delivering a short message from one point to another, and reporting the success of the transmission. The action is used to report a change in the terminal's short reception capability based on the location or state of the terminal. The short request operation is used to request a temporary short message routing address of a mobile terminal.

The short service as described above is provided in the GSM mobile communication network or only in the IS-41 mobile communication network, respectively. Therefore, when roaming from a GSM mobile communication network to an IS-41 mobile communication network and roaming from an IS-41 mobile communication network to a GSM mobile communication network, different short-term service provision procedures and mobile application units (MAP) are provided in order to receive a short service from the other network. ) Interworking function to intermediate protocol and short service provision procedure through this are necessary.

Accordingly, the present invention adds an interworking function capable of transmitting a short message between a GSM mobile communication network using a different protocol and an IS-41 mobile communication network, so that a dual mode mobile terminal may receive a short service even in an area using any protocol. It is an object of the present invention to provide a method of providing a short service between mobile communication networks using different protocols, and a recording medium therefor.

1 is an overall system configuration for providing a short service between heterogeneous mobile communication networks.

2 is a flow chart of message transmission from a dual mode terminal in a GSM network to a short message service center in an IS-41 network according to the present invention.

3 is a flow chart of message transmission from a dual mode terminal in an IS-41 network to a short line service center of a GSM network according to the present invention.

4 is a flowchart of message transmission from a short service center of an IS-41 network to a terminal in a GSM network according to the present invention.

5 is a flowchart of message transmission from a short message service center of a GSM network to a terminal in an IS-41 network according to the present invention.

6 is a call procedure illustrating the presence of a mobile terminal between a GSM network and an IS-41 network according to the present invention.

7 is a call procedure illustrating the memory capacity of a mobile terminal between a GSM network and an IS-41 network according to the present invention.

8 is a diagram illustrating a call procedure after polling a mobile station between a GSM network and an IS-41 network.

* Explanation of symbols for the main parts of the drawings

10: GSM mobile communication network

11: Mobile Switching Center (MSC)

12: GSM Visitor Location Register (VLR)

13: Interworking Fucntion (IWF)

20: IS-41 mobile communication network

21: IS-41 Home Location Register (HLR)

22: IS-41 Mobile Exchange Center

23: IS-41 visitor location registration device

In order to achieve the above object, the present invention provides a short service between a GSM network using a different protocol and an IS-41 network using a code division multiple access method. The short message sent to the short message service center is converted into the short message type used in the IS-41 network, and the IMSI, the subscriber identifier of the GSM network, is converted to MIN and ESN, the subscriber identifier of the IS-41 network. Transmitting a message to a short message service center of an IS-41 network; Convert the short message transmitted from the mobile terminal of IS-41 network to the short service center of GSM network into short message type used in GSM network, and convert MIN and ESN, which are subscriber identifiers of IS-41 network, to subscribers of GSM network. A second step of converting the short message into a short message service center of a GSM network after converting the IMSI into an IMSI; When the short message is to be transmitted from the short service center of the IS-41 network to the mobile terminal of the GSM network, the subscriber information is verified by converting MIN and ESN, which are subscriber identifiers of the IS-41 network, to IMSI, which is a subscriber identifier of the GSM network. A third step of converting the short message of the IS-41 network into a short message of the GSM network to find and transmit a corresponding subscriber; And when the short message is to be transmitted from the short message service center of the GSM network to the mobile terminal of the IS-41 network, the subscriber location of the GSM network is converted to IMIN, which is a subscriber identifier of the IS-41 network, to MIN and ESN, which are subscriber identifiers of the IS-41 network. After confirming, the short message of the GSM network is converted into a short message of the IS-41 network, and is transmitted to a corresponding subscriber.

In addition, the present invention for achieving the above object, in a high-capacity processor, converts the short message transmitted from the mobile terminal of the GSM network to the short service center of the IS-41 network into a short message type used in the IS-41 network and Converts the IMSI, which is the subscriber identifier of the GSM network, to the MIN and ESN, which is the subscriber identifier of the IS-41 network, and then transfers the short message to the short service center of the IS-41 network. After converting the short message transmitted to the short message service center of the GSM network into the short message type used in the GSM network, converting MIN and ESN, which are subscriber identifiers of the IS-41 network, to IMSI, which is a subscriber identifier of the GSM network, A function of delivering a short message to a short message service center of a GSM network, and MI, a subscriber identifier of an IS-41 network, to transmit a short message from a short service center of an IS-41 network to a mobile terminal of a GSM network. Converts N and ESN into IMSI which is subscriber identifier of GSM network, confirms subscriber information, and converts short message of IS-41 network into short message of GSM network to find and transmit the corresponding subscriber; GSM If you want to send a short message from the short service center of the network to the mobile terminal of the IS-41 network, convert the IMSI, the subscriber identifier of the GSM network, to the MIN and ESN, the subscriber identifier of the IS-41 network, The present invention provides a computer-readable recording medium that records a program for executing a function of converting a short message of a GSM network into a short message of an IS-41 network and transmitting the same to a subscriber.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows an overall system structure for providing a short service between a GSM network and an IS-41 network.

In the present invention, a network interlocking device (13) is provided to provide a short message service to a roaming user having a dual mode terminal between a mobile communication network based on GSM and a network using IS-41. The network interlock device 13 serves as a gateway between the GSM network and the IS41 network for roaming users. That is, in order to interwork with each other, it must go through the network interlocking device 13, and when interworking on the GSM network side, performs the function of the HLR / authentication center of the IS-41 network, and interworking on the IS-41 network side. Functions as the VLR of GSM.

When transmitting a short message from a dual-mode terminal operating in a GSM network to a short message service center (SMC) in the IS-41 network, the network interlocking device 13 converts the short message in the GSM network into a short message in the IS-41 network. This function converts the MAP protocol from the GSM network to the MAP protocol used in the IS-41 network.

In addition, when a terminal operating in the IS-41 network transmits a short message to a short message service center (SMC) in the GSM network, the network interlocking device 13 may convert the short message in the IS-41 network into a short message in the GSM network. This function converts the MAP protocol from the IS-41 network to the MAP protocol used in the GSM network.

In addition, when transmitting a short message to a dual-mode terminal operating in the IS-41 network from the GSM network Short Message Service (SMC), the network interlocking device 13 in the GSM network to obtain the location information and subscriber profile of the terminal It performs the function of converting MAP protocol of MAP to MAP protocol used in IS-41 network.

In addition, when transmitting a short message from a short message service center (SMC) of an IS-41 network to a dual mode terminal operating in a GSM network, the network interlocking device (13) sends a short message of an IS-41 network in a GSM network. It performs the function of converting to short message form and converting MAP protocol in IS-41 network to MAP protocol in GSM network.

On the other hand, in order to call a short message from the dual mode terminal operating in the GSM network to the short message service center (SMC) of the IS-41, the MAP protocol using the MAP protocol in the GSM network in the network interlocking device 13 is performed in the IS-41 network. Need to convert to

2 shows a procedure for transmitting a short message from a dual mode terminal in a GSM network to a short message service center (SMC) of an IS-41 network according to the present invention.

When the MSC receives the short message from the mobile terminal operating in the GSM network, the MSC requests the subscriber information request message to the visitor location registration device (VLR) of the GSM network to check whether the MS can provide the short service. Send (201). Upon receiving the subscriber information request message, the visitor location registration device (VLR) checks whether the subscriber is provided with the teleservice related to the short message service, whether the call is prohibited by the operator, or is prohibited by the supplementary service. If a service can be provided, a response message is transmitted to the MSC (202). MSC transmits short message received from subscriber to short message service center of IS-41 network to IWF interworking with short message service center of IS-41 network. 203). Network interworking device (IWF) converts the received short message from GSM network into short message type used in IS-41 network, and MIN using IMSI which is subscriber identifier in GSM network as subscriber identifier in IS-41 network. After converting to and ESN, the converted short message is transmitted to the short service center (IS41-SMC) in the IS-41 network (204). Upon receiving the short message, the short message service center of the IS-41 network processes the short message and transmits a short received response message indicating the result to the network interlocking device (205). Upon receiving the short message response message, the IWF converts the MIN and ESN, which are used as subscriber identifiers in the IS-41 network, into IMSI, which is used as subscriber identifiers, in the GSM network. In step 206, the message is transmitted to the mobile switching center (MSC) in the GSM network.

Figure 3 shows a short message transmission procedure from a dual mode terminal in an IS-41 network to a Short Message Service Center (SMC) in a GSM network according to the present invention.

When the MSC in the IS-41 network receives the short message from the mobile terminal, the MSC examines whether the short message service can be provided to the subscriber, and if the short message is provided, the MS message is received from the mobile terminal. In step 301, the interlocking device transmits to the interworking device IWF. The network interworking device (IWF) receiving the short message converts the short message in the IS-41 network into a short message type used in the GSM network, and converts the MIN and ESN used as the subscriber identifier in the IS-41 network in the GSM network. After converting to IMSI, which is the subscriber's identifier, it transmits the short message received from the mobile switching center to the short-term service center of the GSM network to the interworking mobile switching center (IWMSC) linked with the short-term service center of the GSM network (302). ). The interworking mobile switching center (IWMSC) receiving the message transmits a short message to the short message service center (SMC) (303). Upon receiving the short message, the short service center processes the received short message and transmits a received response message including the result to the network interworking device IWF through the interworking mobile switching center IWMSC (304, 305). The network interworking device (IWF) converts IMSI, a subscriber identifier in GSM network, into MIN and ESN used as subscriber identifier in IS-41 network, and then sends an IS- response message indicating that a short message has been transmitted to the corresponding short message service center. It transmits to 41 MSC (306).

After the short message is received at the short service center through the above process, the short message incoming procedure to the mobile terminal is as follows.

4 shows a short message transmission procedure from a short message service center (SMC) of an IS-41 network to a dual mode terminal in a GSM network according to the present invention.

The short message service center (SMC) of the IS-41 network, if there is a short message to be transmitted to a mobile subscriber operating in the GSM network, uses a network interworking device (IWF) to obtain subscriber location information for transmitting the short message to the GSM network. In step 401, a short message transmission request message is transmitted. After receiving the short message transmission request message, the IWF converts the subscriber identifiers MIN and ESN into IMSI, and then uses the terminal address included in the short message to obtain location information of the mobile terminal to receive the short message. The subscriber location request message is transmitted to the home location registration device (HLR) (402). The home location registration device (HLR) checks whether the subscriber exists, whether the subscriber is provided with a short-term service-related teleservice, is the call prohibited by the operator, or is the call prohibited by the supplementary service, or the visited network of the mobile terminal. Check whether the short message service is provided or whether the subscriber is currently able to receive the short message, and if the short service can be provided, a response message including the location information of the terminal is connected to the network interworking device (IWF). To the server (403). The network interworking device (IWF) analyzes the location information of the corresponding terminal, converts the IMSI into MIN and ESN, and transmits a response message to the short message service center (SMC) of the IS-41 network (404). Upon receiving the response message for the short message transmission request, the short service center of the IS-41 network transmits a transmission message including the short message to be transmitted to the subscriber to the IWF (405). The network interworking device (IWF) receiving the short message converts to a short message type used in the GSM network, converts MIN and ESN into IMSI, analyzes the location information of the corresponding terminal, and transmits a transmission message including the short message. Transfer to MSC. The MSC transmits the subscriber location information request message to the visitor location registration device (VLR) to find the location of the subscriber (407). The visitor location registration device (VLR) checks whether there is an error in the information element or data, whether the identifier of the mobile terminal is IMSI or TMSI, and sends a paging request message to the MSC to locate the terminal. (408). The MSC notifies the visitor location registration device (VLR) through the paging response message that the subscriber can receive a short message after paging to the terminal (409). The visitor location registration device (VLR) transmits a short message transmission capable response message indicating that the corresponding short message can be transmitted to the MSC (410). The mobile switching center (MSC) transmits a short message to the terminal and transmits a response message indicating that the short message has been transmitted to the network interlocking device (IWF) (411), and the network interlocking device transmits the short message transmission response message to the IS-41. It transmits to the short message service center (SMC) of the network (412).

This completes the delivery of one short message. If there is more than one short message in the short service center, the short service center continuously delivers the short message. In this process, since the location and subscriber information of the mobile subscriber are already known, the second short message starts from the short message service center via the network interworking device (IWF), and then the short message is transmitted to the MSC. (413,414), and the response message of the mobile switching center is transmitted to the short message service center via the network interlocking device (415,416).

5 shows a short message transmission procedure from a Short Message Service Center (SMC) of a GSM network to a dual mode terminal in an IS-41 network according to the present invention.

The short message service center (SMC) in the GSM network transmits a short message to a gateway mobile switching center (GMSC) in the GSM network if there is a short message to be transmitted to the mobile subscriber. The GMSC that receives the short message sends the subscriber location request message to the IWF using the terminal address included in the short message to obtain the location information of the mobile terminal that will receive the short message. Send (501). The network interlocking device (IWF) converts IMSI to MIN and ESN, and then transmits a short message transmission request message to the home location registration device (HLR) of the IS-41 network (502).

The home location registration device (HLR) of the IS-41 network receiving the short message transmission request message grasps the location and various states of the subscriber through the visitor location registration device and the mobile switching center of the IS-41 network (503). 506), if it is possible to provide a short message, and transmits a transmission request response message including the location information of the terminal to the network interlocking device (IWF) (507). The IWF converts the MIN and the ESN into IMSI, and then transmits a subscriber information response message including the location information of the terminal to the gateway mobile switching center (GMSC) (508). The gateway mobile switching center (GMSC) analyzes the location information of the corresponding terminal and transmits the transmission message including the short message to the network interlocking device (509). The network interworking apparatus converts the received transmission message into a short message form of the IS-41 network, converts the IMSI of the terminal identifier into MIN and ESN, and then transmits it to the MSC of the IS-41 network (510). ). Upon receiving the message, the MSC transmits a subscriber information request message to the visitor location registration device (VLR) to find the location of the subscriber, and the visitor location registration device (VLR) transmits a paging request message to the mobile location exchange center (VLR). MSC) to find the location of the terminal. The mobile switching center (MSC), after paging to the terminal, transmits a message to the visitor location registration device (VLR) indicating that the subscriber can receive a short message when receiving a response. The visitor location registration device (VLR) transmits a subscriber information request response message indicating that the short message can be transmitted to the MSC. Thereafter, the MSC transmits a short message to the terminal and transmits a transmission response message indicating that the short message has been transmitted to the network interlocking device (511). The network interlocking device transmits a transmission response message to the gateway mobile switching center (GMSC) (512), and the gateway mobile switching center transmits the received transmission response message to the short message service center.

The short message service center (SMC) transmits a short message to the gateway mobile switching center (GMSC) if there are more short messages to be transmitted to the mobile subscriber, and the gateway mobile switching center (GMSC) receiving the short message transmits the network interlocking device. The transmission message including the short message is transmitted to the mobile switching center (MSC) by using the location information determined above. The MSC transmits a short message to the terminal and transmits a response message indicating that the short message has been transmitted to the GMSC through a network interlocking device.

6 shows a procedure for notifying the presence of a mobile terminal.

When the mobile subscriber accesses the network for location registration or call processing, the MSC of the GSM network sends an access request message message to the visitor location registration device (VLR) to check the service profile of the originating mobile subscriber ( 601). The visitor location registration device (VLR) receiving the message checks the subscriber's home and checks the flag of the mobile subscriber in case of the IS-41 network, and if the short message can be transmitted, the short message can be transmitted. The subscriber information update message notifying of the transmission is transmitted to the network interlocking device (IWF) (602). The network interworking device (IWF) transmits a response message to the visitor location registration device (VLR) (603), converts the IMSI to MIN and ESN, and updates the subscriber information informing that the mobile terminal can receive a short message. The message is transmitted to the home location registration device (HLR) of the IS-41 network (604). After updating the subscriber information, the home location registration device (HLR) of the IS-41 network transmits a process response message to the network interworking device (IWF) (605), and a message informing that the mobile terminal can receive a short message. It sends to the Short Message Service Center (SMC) of the IS-41 network (606). The short message service center (SMC) of the IS-41 network transmits a response message to the home location registration device (HLR) of the IS-41 network (607).

7 shows a call procedure for notifying the memory capacity of a mobile terminal.

If the memory capacity of the mobile terminal used by the mobile subscriber operating in the GSM network is sufficient to receive the short message, the MSC registers the call waiting message with the visitor location of the GSM network to inform the user that the memory is available. Transmit to device VLR (701). After receiving the message, the visitor location registration device (VLR) checks the error of the message, and transmits the reception standby message including the information that the memory is available to the network interlocking device (IWF) (702). The network interlocking device (IWF) transmits the response message to the visitor location registration device (VLR) of the GSM network, and the visitor location registration device transmits the response message to the mobile switching center (MSC) (704). In addition, the IWF converts IMSI to MIN and ESN, and then transmits a registration notification message to the home location registration device (HLR) of the IS-41 network, indicating that the mobile terminal can receive a short message. (705). After performing the corresponding processing, the home location registration device (HLR) of the IS-41 network transmits a registration processing response message to the network interworking device (IWF) (706), and informs the mobile terminal that the mobile terminal can receive a short message. The short message service notification message is transmitted to the short message service center (SMC) of the IS-41 network (707). The short message service center (SMC) of the IS-41 network transmits a response message to the home location registration device (HLR) of the IS-41 network (708).

8 shows a calling procedure after polling a mobile terminal.

After polling the mobile terminal in the short message service center, if the successful delivery is made, the gateway mobile switching center (GMSC) transmits a polling result notification message indicating the fact to the network interworking device (IWF) (801). Upon receiving the message, the network interworking device IWF resets the flag and transmits a response message to the gateway mobile switching center GMSC (802). At the same time, the IWF converts the IMSI into MIN and ESN, and then transmits a registration notification message to the home location registration device (HLR) of the IS-41 network, indicating that the mobile terminal can receive a short message. (803). After performing the corresponding processing, the home location registration device (HLR) of the IS-41 network transmits a registration response message to the network interlocking device (IWF) (804) and informs that the mobile terminal can receive a short message. The service availability notification message is transmitted to the short service center (SMC) of the IS-41 network (805). Upon receiving the short message service notification message, the short message service center (SMC) of the IS-41 network transmits a response message to the home location registration device (HLR) of the IS-41 network (806).

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 enables the short message between the GSM network and the IS-41 network having different short service provision procedures and mobile application part (MAP) protocols to be interworked. Regardless of whether it is currently registered with the user, it is possible to receive a short message sent to the user or to send a message to a short message service center, thereby increasing the short service area and increasing the convenience of the subscriber.

Claims (6)

In a method of providing a short message service between a GSM network using a different protocol and an IS-41 network using a code division multiple access method, Convert the short message transmitted from the mobile terminal of the GSM network to the short service center of the IS-41 network into the short message type used in the IS-41 network, and convert the IMSI, the subscriber identifier of the GSM network, into the IS-41 network. Converting the MIN and the ESN into a short message and delivering the short message to a short message service center of an IS-41 network; Convert the short message transmitted from the mobile terminal of IS-41 network to the short service center of GSM network into short message type used in GSM network, and convert MIN and ESN, which are subscriber identifiers of IS-41 network, to subscribers of GSM network. A second step of converting the short message into a short message service center of a GSM network after converting the IMSI into an IMSI; When the short message is to be transmitted from the short service center of the IS-41 network to the mobile terminal of the GSM network, the subscriber information is verified by converting MIN and ESN, which are subscriber identifiers of the IS-41 network, to IMSI, which is a subscriber identifier of the GSM network. A third step of converting the short message of the IS-41 network into a short message of the GSM network to find and transmit a corresponding subscriber; And When the short message is to be transmitted from the short message service center of the GSM network to the mobile terminal of the IS-41 network, the subscriber location of the GSM network is converted to IMIN, which is the subscriber identifier of the IS-41 network, to MIN and ESN, which are subscriber IDs. Next, a fourth step of converting the short message of the GSM network into a short message form of the IS-41 network and transmitting it to the corresponding subscriber Short service providing method in a mobile communication system using different protocols, including. The method of claim 1, The first step, A fifth step of confirming whether the mobile subscriber who transmits the short message through the visitor location registration device of the GSM network can receive the short message when the short message is received at the mobile switching center of the GSM network; A sixth step of transmitting the short message received from the subscriber to the network interworking device interworking with the short service center of the IS-41 network if the short service can be provided in the fifth step; Converts the short message of the GSM network received by the network interworking device into a short message type used in the IS-41 network, and converts IMSI, which is a subscriber identifier of the GSM network, into MIN and ESN, which is a subscriber identifier of the IS-41 network. A seventh step of transmitting the converted short message to the short service center in the IS-41 network; And An eighth step of processing the short message received by the short service center of the IS-41 network and transferring the result to the mobile switching center in the GSM network through the network interlocking device; Short service providing method in a mobile communication system using a different protocol characterized in that it comprises a. The method of claim 1, The second step, A fifth step of receiving a short message from the mobile switching center in the IS-41 network and examining whether the short message service can be provided to the subscriber; A sixth step of transmitting a short message received from the mobile terminal to the network interlocking device if the short service can be provided in the fifth step; After converting the short message received from the network interworking device into a short message type used in the GSM network, converting MIN and ESN used as subscriber identifiers in the IS-41 network into IMSI, which is a subscriber identifier in the GSM network, the GSM A seventh step of transmitting to the short message service center of the GSM network through an interlocking mobile switching center interworking with the short message service center of the network; And An eighth step of processing the short message received by the short message service center and transmitting a received response message including the result to the mobile switching center of the IS-41 network through the interlocking mobile switching center and the network interlocking device; Short service providing method in a mobile communication system using a different protocol characterized in that it comprises a. The method of claim 1, The third step, A fifth step of transmitting a subscriber location information request message to a network interworking device in order to transmit a short message to a mobile subscriber operating in a GSM network in a short service center of an IS-41 network; Converting MIN and ESN, which are subscriber identifiers of IS-41 network, to IMSI, which is subscriber identifier of GSM network, in the network interlocking device, and obtaining location information of a mobile terminal to receive the short message through a home location registration device; Step 6; Analyze the location information of the corresponding terminal acquired by the network interlocking device, convert IMSI to MIN and ESN, and then transmit a response message to the short service center of the IS-41 network, and then to the short service of the IS-41 network. A seventh step of receiving a short message from the center; Convert the short message received by the network interworking device into a short message type used in the GSM network, convert MIN and ESN, which are subscriber identifiers, into IMSI, analyze the location information of the corresponding terminal, and exchange the short message with the corresponding mobile exchange. An eighth step of transmitting to the center; And A ninth step of delivering the received short message by paging the mobile terminal through the visitor location registration device in the mobile switching center; Short service providing method in a mobile communication system using a different protocol characterized in that it comprises a. The method of claim 1, The fourth step, A fifth step of transmitting the short message to the gateway mobile switching center in the GSM network when the short message is transmitted from the short service center in the GSM network to the mobile subscriber of the IS-41 network; A sixth step of transmitting, at the gateway mobile switching center, a subscriber location request message for obtaining location information of a mobile terminal to receive the short message to a network interlocking device; After converting the IMSI, which is the subscriber identifier of the GSM network, to the MIN and ESN, which is the subscriber identifier of the IS-41 network, the network interworking device determines whether the subscriber's location and short service can be provided through the home location registration device of the IS-41 network. Confirming the seventh step; An eighth step of converting a MIN and an ESN into an IMSI in the network interworking device, and transmitting a subscriber information response message to the gateway mobile switching center if the short link service is provided; Upon receiving the short message, the network interworking device converts the short message into a short message form of the IS-41 network, converts the IMSI of the subscriber identifier into MIN and ESN, and then sends the short message to the mobile switching center of the IS-41 network. A ninth step of transmitting; And A tenth step in which the mobile switching center delivers the short message received by locating the subscriber through the visitor location registration device; Short service providing method in a mobile communication system using a different protocol characterized in that it comprises a. In a mobile communication system having a large capacity processor, Convert the short message transmitted from the mobile terminal of the GSM network to the short service center of the IS-41 network into the short message type used in the IS-41 network, and convert the IMSI, the subscriber identifier of the GSM network, into the IS-41 network. Converting a short message into a short message service center of an IS-41 network; Convert the short message transmitted from the mobile terminal of IS-41 network to the short service center of GSM network into short message type used in GSM network, and convert MIN and ESN, which are subscriber identifiers of IS-41 network, to subscribers of GSM network. Converting the message to IMSI, and then transmitting the short message to the short message service center of the GSM network; When the short message is to be transmitted from the short service center of the IS-41 network to the mobile terminal of the GSM network, the subscriber information is verified by converting MIN and ESN, which are subscriber identifiers of the IS-41 network, to IMSI, which is a subscriber identifier of the GSM network. Next, converting a short message of the IS-41 network into a short message of the GSM network to find and transmit a corresponding subscriber; And When the short message is to be transmitted from the short message service center of the GSM network to the mobile terminal of the IS-41 network, the subscriber location of the GSM network is converted to IMIN, which is the subscriber identifier of the IS-41 network, to MIN and ESN, which are subscriber IDs. Next, a function of converting a short message of the GSM network into a short message of the IS-41 network and transmitting it to a corresponding subscriber. A computer-readable recording medium having recorded thereon a program for executing the program.