KR20090005800A - Communication service system and its method using by a mobile communication terminal - Google Patents

Abstract

A communication service system using a mobile communication terminal and a method thereof are provided to offer an international roaming telephony service at the minimum cost by comparing service fee by the companies. An originating exchange(106) determines the nation by analyzing inputted country code, and decides a specific communication networks. By the analyzed result, the originating exchange requests route information including the location information of the called terminal, and perform the connection to the roaming telephone by the routing information. A gateway unit(110) performs the routing function to the determined communications network as described above. A roaming signal network(112) comprises the STP(Signaling Transfer Point) and perform roaming function to the determined communications network.

Description

Communication service system and method using a mobile communication terminal {COMMUNICATION SERVICE SYSTEM AND ITS METHOD USING BY A MOBILE COMMUNICATION TERMINAL}

The present invention relates to a method for providing an international roaming service using a mobile communication terminal, and more particularly, to provide an international roaming service using a mobile communication terminal. A communication service system and a method thereof are provided.

As is well known, a mobile communication terminal has a function of being extended to a multimedia terminal such as a digital camera photographing or an MP3 music file with a built-in camera or memory in addition to a simple voice call function. Due to the enhancement of functions, various additional services using the multimedia functions newly added to the mobile communication terminals are being developed, not only the service of the mobile communication terminal but also the communication service for the voice call.

The mobile communication terminal provides a specific additional service using a short range wireless communication module, for example, Radio Frequency IDentification (RFID), Bluetooth, Infrared Data Association (IRDA), Zigbee, etc.) MP3 viewing using a wireless headset, a voice call using a wireless microphone, and the like, and furthermore, various functions using a short range wireless communication module have been applied to a mobile communication terminal having a game function and a DMB function.

Meanwhile, an international roaming service is provided by using a mobile communication terminal, which is a service provided between countries having the same technology scheme (for example, CDMA, WCDMA, etc.) and using the same frequency band. By using a terminal and a telephone number to provide a communication service in other countries.

Referring to the process of providing such an international roaming service, if the international telephone code, country code and destination terminal phone number is input through the calling terminal, the international exchange roaming call connection request to the calling exchange, according to the call call request Request the location information of the called terminal to the home location register, the home location register requests the route information of the called terminal to the destination exchange through the gateway device, and the destination exchange provides the route information to the calling exchange through the gateway device, The calling terminal performs a call call connection between the calling terminal and the called terminal after requesting a call call connection to the called exchange according to the location information of the called terminal according to the route information.

However, when providing an international roaming service using a mobile communication terminal, when an international roaming call is requested to be connected, the international roaming call is connected to a destination exchange of a communication network operated by an international telephone operator of the corresponding country. Roaming call call connection has a problem in providing an inexpensive communication service because the billing is handled differently for each network operated by the international telephone operator.

Accordingly, when the international roaming call connection is requested, the present invention sets up a communication network in which a low rate is charged for each country, thereby connecting the international roaming call to the corresponding communication network, thereby providing a low-cost communication service to the user.

In addition, the present invention is to provide a more smooth communication service by analyzing a country code input for the international roaming service by immediately connecting the call to the communication network set for each country.

In one aspect, the present invention is a communication service system for providing an international roaming call service, when an international roaming call call connection is requested from a calling terminal to a called terminal through a communication network, a corresponding country is determined by analyzing an inputted country code, After determining a specific communication network that charges the lowest fee by referring to a predetermined network operator table for each country, the system determines a specific communication network to be routed to the determined communication network and requests route information including the location information of the called terminal, and according to the route information provided accordingly An outgoing exchange performing an international roaming call call connection to a called terminal, roaming means for routing information to the communication network determined through the outgoing exchange and performing an international roaming call call connection from the originating exchange through the roaming means; Incoming call upon request of route information Provides a route information of the terminal, and provides a communication service system using a mobile communication terminal comprising a destination exchange for performing an international roaming call call connection from the originating exchange.

In another aspect, the present invention is a communication service method for providing an international roaming call service, wherein when an international roaming call call connection is requested from an originating terminal to a called terminal through a communication network, a country code inputted through the originating terminal at an originating exchange. Determining a corresponding country by analyzing a; and determining a specific communication network that charges the lowest fee according to a predetermined network operator table for each country, and routing and roaming the determined communication network to the called terminal. Requesting route information including the location information to the destination exchange; and if route information including the location information is provided to the originating exchange, between the originating terminal and the destination terminal through the originating exchange and the destination exchange. Connecting the international roaming call; It provides a communication service method using a mobile communication terminal.

According to the present invention, unlike the conventional method of performing a communication service through an established communication network regardless of a charge charged when an international roaming call is connected between an originating terminal and a called terminal, an international roaming call connection from a calling terminal to a called terminal is requested. If the corresponding country is determined by analyzing the country code inputted from the originating exchange, the specific communication network that charges the lowest fee is determined according to the preset network operator table for each country, and the location of the destination terminal is routed and roamed to the corresponding communication network. Requesting and providing route information including information to connect an international roaming call between the calling terminal and the called terminal through an originating exchange and a destination exchange, thereby analyzing the inputted country code to determine a specific communication network that charges the lowest fee. And roaming with these networks The call connection can be performed to provide a smooth international roaming communication service through a low-cost communication network.

In accordance with an aspect of the present invention, when an international roaming call call connection is requested from an originating terminal to a called terminal, the country code is analyzed and determined, and then a specific communication network is selected and determined according to a preset network operator table for each country. Routing to the communication network to receive and request the path information including the location information of the destination terminal to connect the international roaming call to the destination terminal, the technical means can solve the problem in the prior art.

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

1 is a block diagram of a communication service system suitable for providing an international roaming service to a preset communication network according to the present invention, wherein the calling terminal 102, the first communication network 104, the calling exchange 106, and the calling home location register are shown. 108, the gateway device 110, the roaming signaling network 112, the destination exchange 114, the destination home location register 116, the second communication network 118, and the destination terminal 120.

Referring to FIG. 1, the caller terminal 102 is a terminal capable of voice / video call and data communication with the other party through the first communication network 104, and the caller terminal 102 specifies a user for an international roaming voice call or the like. Entering a key (i.e., an international roaming request key, for example '+', etc.), a country code, and a telephone number will generate the corresponding call and send an international roaming call call to the originating exchange 106 through the first communication network 104. Send it.

In addition, the first communication network 104 serves to guarantee the mobility of the originating terminal 102, and includes a base station and a base station controller, and supports both synchronous and asynchronous. Here, in the case of a synchronous wireless communication network, a base station that receives and transmits a radio communication signal of the originating terminal 102 may be a base transceiver station (BTS) and a base station controller which controls the base station and performs communication with the originating exchange 106. A base station controller (BSC), which receives and transmits a radio communication signal of the originating terminal 102 in the case of an asynchronous wireless communication network, controls the node B and the node B to control the originating exchange 106. The base station controller performing communication with the network becomes a Radio Network Controller (RNC). Of course, the first communication network 104 is not limited thereto, and includes a communication network of all mobile communication systems to be implemented in the future, including a CDMA network, a GSM network other than a W-CDMA network, and a fourth generation.

Next, outgoing exchange 106 performs basic and additional service processing, incoming and outgoing call processing of subscriber, location registration procedure and handover procedure processing of originating terminal 102, interworking function with other network, etc. ASS (Access Switching Subsystem) which performs the function of the integrated call processing, INS (Interconnection Network Subsystem) which performs the centralized call processing function, Central Control Subsystem (CCS) which centralizes operation and maintenance, and mobile subscriber It includes a subsystem such as a Location Registration Subsystem (RLS) that performs storage and management of information.

In addition, when the originating exchange 106 is requested for an international roaming call call connection from the originating terminal 102 to the terminating terminal 120 through the first communication network 104, the originating exchange 106 analyzes the country code to determine the corresponding country, and by country After determining the corresponding network according to the previously stored communication service provider table, request the location information of the destination terminal 120 to the calling home location register 108, and obtains TLDN (Temporary Local Directory Number) information from the calling home location register 108. When the location information of the called terminal 120 is provided, the call terminal 102 is requested by the call exchanger 114 through the gateway device 110 and the signal roaming network 112 according to the location information. And the call call connection between the called terminal 120. Here, the TLDN information is a temporary call routing number for call delivery in a communication service system, and a phone number temporarily assigned by another exchange for call routing when any terminal is located at another exchange outside the home exchange. The call forwarding is performed with this number.

Here, the originating exchange 106 analyzes the country code that is input after the specific key for the international call from the originating terminal 102. For example, when "1" is input and transmitted after the specific key is input, the corresponding country is the United States. If "8" is inputted and transmitted, it is determined that the corresponding country is China if the next input number is "6", and if the input number after "8" is "1", it is determined that the country is Japan. After analyzing the country code by the method, the communication network is determined according to the network provider table that charges the lowest fee stored in each country, and then the call connection request and the location information request to the determined communication network are performed. Here, the network operator table may include a country name, a network operator name, a network name, communication network information, billing information, and the like.

In addition, the originating home location register 108 receives the location information of the calling terminal 102 to perform functions such as registration recognition, registration deletion, and location checking, and profile information of the calling terminal 102 is stored. Here, the profile information refers to subscribed additional service information such as a mobile identification number (MIN), an electronic serial number (ESN), an international mobile subscriber identify (IMSI), and a calling number service. On the other hand, the originating visit location register (not shown) performs the function of storing the information of the visited subscriber in the area serviced by the originating exchange 106, and transmits the originating terminal 102 and the subscriber information registered in the location of the responsible area home Taken from location register 108 and temporarily stored.

The originating home location register 108 may include a subscriber information management device that manages a database of additional service information of a subscriber when implemented in a wired communication service. The originating home location register 108 for the mobile communication service and the subscriber information management device for the wired communication service perform a function of managing the subscriber additional service information by database.

In addition, when the originating home location register 108 is requested location information of the destination terminal 120 from the originating exchange 106, according to the present invention, the destination exchange through the gateway device 110 and the signal roaming network 112 accordingly Requesting path information including the location information of the corresponding destination terminal 120 to 114, and the destination terminal including Temporary Local Directory Number (TLDN) information according to the path information of the destination terminal 120 provided accordingly. The location information of 120 is provided to the originating exchange 106.

Meanwhile, the gateway device 110 includes a gateway location register (GLR) and the like, and interworks with a signal roaming network 112 for international roaming service, and is responsible for connecting and transmitting a call and transmitting various data. When the path information of the terminating terminal 120 is requested from the 108, it performs a routing function to the communication network determined through the originating exchange 106, and transmits this request to the terminating exchange 114 through the signal roaming network 112. , The route information of the terminating terminal 120, which is provided through the signal roaming network 112 from the terminating exchange 114 to the originating home location register 108, the signal when a call call connection is requested from the originating exchange 106 This request is sent to the destination exchange 114 via the roaming network 112.

In addition, the signal roaming network 112 means a STP (Signaling Transfer Point) for interworking a communication service between an arbitrary communication network and another communication network, and performs a roaming function to a communication network determined through the originating exchange 106. In conjunction with the gateway device 110, the call exchange connection between the originating exchange 106 and the destination exchange 114 is responsible for the transmission and reception of various data.

Next, the destination exchange 114 performs basic and additional service processing, incoming and outgoing call processing of the subscriber, location registration procedure and handover procedure processing of the destination terminal 120, interworking function with other networks, and the like. In addition, ASS (Access Switching Subsystem) for distributed call processing, INS (Interconnection Network Subsystem) for centralized call processing, Central Control Subsystem (CCS) for centralizing operation and maintenance, and mobile subscribers It includes a subsystem, such as a Location Registration Subsystem (LRS) that performs the function of storing and managing information about the.

In addition, the destination exchange 114 requests the location information from the destination VLR 114 when the location information of the destination terminal 120 is requested from the originating home location register 108, and the TLDN provided from the destination home location register 116. Providing location information, including the information, to the originating home location register 108 via the signal roaming network 112 and the gateway device 110, and thus through the signal roaming network 112 and the gateway device 110. The call of the calling terminal 102 requested from the 106 is connected to the called terminal 120 through the second communication network 118.

The destination home location register 116 receives the location information of the destination terminal 120 to perform functions such as registration recognition, registration deletion, location confirmation, and the like. Profile information of the destination terminal 120 is stored. Here, the profile information refers to subscribed additional service information such as a mobile identification number (MIN), an electronic serial number (ESN), an international mobile subscriber identify (IMSI), and a calling number service. On the other hand, the incoming visit location register (not shown) stores the information of the visited subscriber in the area serviced by the destination exchange 114, and the destination terminal 120 and the subscriber information registered as the location of the area to the destination home Taken from location register 116 and stored temporarily.

In addition, the second communication network 118 serves to ensure the mobility of the destination terminal 120, and includes a base station and a base station controller, and supports both synchronous and asynchronous. Here, in the case of a synchronous wireless communication network, a base station that receives and transmits a wireless communication signal of the terminating terminal 120 is a BTS, and a base station controller that performs communication with the destination exchange 114 by controlling the base station is a BSC, and is asynchronous. In the case of a wireless communication network, a base station controller that receives and transmits a wireless communication signal of the terminating terminal 120 controls a Node B and a Node B so that a base station controller that performs communication with the destination exchange 114 becomes an RNC. Of course, the second communication network 118 is not limited thereto, and includes a communication network of all future mobile communication systems including a CDMA network, a GSM network other than a W-CDMA network, and a fourth generation.

In addition, the destination terminal 120 is a terminal capable of voice / video call and data communication with the other party through the second communication network 118, and from the originating terminal 102 through the destination exchange 114 and the second communication network 118. Perform international roaming communication services with ring signals by connecting call calls.

Next, in a communication service system having the above-described configuration, when a specific key, a country code, and a phone number according to the international roaming service are input, the country code is analyzed to determine the corresponding country, and according to the pre-stored carrier table for each country. Routes through a gateway device and a signal roaming network to a communication network corresponding to the determined country, and requests route information including location information, and receives such route information to connect an international roaming call call between the calling terminal and the called terminal. Explain the process of doing so.

2 is a diagram illustrating a process of providing an international roaming service to a preset communication network according to the present invention.

Referring to FIG. 2, in the calling terminal 102, when a user inputs a specific key (ie, an international roaming request key, for example, '+', etc.), a country code, and a phone number for an international roaming voice call, etc. Generate a call and request an international roaming call call to originating exchange 106 via first communication network 104 (step 202). Here, when the first communication network 104 is a synchronous wireless communication network, a base station that receives and transmits a radio communication signal of the originating terminal 102 controls the base transceiver station (BTS) and the base station to control the base station 106 with the originating exchange 106. The base station controller performing the communication becomes a base station controller (BSC), and in the case of an asynchronous wireless communication network, the base station that receives and transmits the wireless communication signal of the originating terminal 102 is referred to as a node B and a node B. The base station controller which performs control and communication with the originating exchange 106 becomes a Radio Network Controller (RNC). Of course, the first communication network 104 is not limited thereto, and includes a communication network of all mobile communication systems to be implemented in the future, including a CDMA network, a GSM network other than a W-CDMA network, and a fourth generation.

Then, the originating exchange 106 analyzes the country code input after the specific key input for the international call from the originating terminal 102 to determine the corresponding country (step 204). Here, for the analysis and determination of the country code, for example, if a "1" is input and transmitted after inputting a specific key, it is determined that the corresponding country is the United States, and if a "8" is input and transmitted, the next input number is "6". In the case of, it is determined that the corresponding country is China, and when the input number following "8" is "1", it is performed in a manner of determining that the corresponding country is Japan.

Next, the source exchange 106 determines the network in accordance with the network operator table that charges the lowest fee already stored in the country (step 206). Here, the pre-stored network operator table may include a country name, a network operator name, a network name, communication network information, billing information, and the like.

The originating exchange 106 also requests the originating home location register 108 for location information of the terminating terminal 120 (step 208). Here, the originating exchange 106 may provide communication network information determined according to the network operator table previously stored in the originating home location register 108.

In addition, the originating home location register 108 routes (ie, roams the communication network) through the gateway device 110 and the signal roaming network 112 according to the request for the location information from the originating exchange 106, and then the corresponding destination terminal 120. Request route information including the location information of the destination exchange 114 (step 210, 212. 214).

On the other hand, the destination exchange 114 is a destination terminal 120 to the destination home location register 116 in response to a request for route information from the originating home location register 108 through the gateway device 110 and the signal roaming network 112. Request location information (step 216).

In addition, the called home location register 116 retrieves the location information including the TLDN information corresponding to the called terminal 120 according to the location information request from the called exchange 114 and provides it to the called exchange 114 ( Step 218).

Meanwhile, the destination exchange 114 routes the route information of the corresponding destination terminal 120 to the corresponding communication network through the signal roaming network 112 and the gateway device 110 according to the location information provided from the destination home location register 116. (I.e., network roaming) to provide to the originating home location register 108 (steps 220, 222, 224).

In addition, the originating home location register 108 provides location information according to the route information of the called terminal 120 provided through the signal roaming network 112 and the gateway device 110 to the originating exchange 106 (step 226). ).

Subsequently, the originating exchange 106 receives the international roaming call call connection to the called terminal 120 according to the location information provided from the originating home location register 108 through the gateway device 110 and the signal roaming network 112. Request to exchange 114 (steps 228, 230, 232).

Accordingly, the destination exchange 114 requests a call call connection to the destination terminal 120 through the second communication network 118 (step 234), and accordingly, the originating exchange 106, the gateway device 110, and signal roaming An international roaming call is connected between the calling terminal 102 and the called terminal 120 through the network 112 and the called exchange 114 (step 236). Here, when the second communication network 118 is a synchronous wireless communication network, a base station that receives and transmits a radio communication signal of the terminating terminal 120 controls a BTS and a base station to perform communication with the destination exchange 114. The controller becomes a BSC, and in the case of an asynchronous wireless communication network, a base station that receives and transmits a radio communication signal of the terminating terminal 120 controls a node B and a node B to perform communication with the destination exchange 114. Becomes an RNC. Of course, the second communication network 118 is not limited thereto, and includes a communication network of all mobile communication systems to be implemented in the future, including a CDMA network, a non-W-CDMA GSM network, and a fourth generation.

Therefore, when an international roaming call is called from the calling terminal to the called terminal, the corresponding country is determined, the corresponding network is determined according to the stored network operator table, and the location information of the called terminal is requested through this. By connecting the international roaming call to the destination terminal according to, it is possible to provide an international roaming communication service by selectively connecting a communication network that charges the lowest fee.

In the foregoing description, the present invention has been described with reference to preferred embodiments, but the present invention is not necessarily limited thereto. Those skilled in the art will appreciate that the present invention may be modified without departing from the spirit of the present invention. It will be readily appreciated that branch substitutions, modifications and variations are possible.

According to the present invention, by providing a more efficient and systematic international telephone roaming service to the user when the international roaming call request in the mobile communication network, the user is satisfied with the use of the international roaming call service by increasing the subscribers of the service Business revitalization is expected to be maximized.

1 is a block diagram of a communication service system suitable for providing an international roaming service to a preset communication network according to the present invention;

2 is a diagram illustrating a process of providing an international roaming service to a preset communication network according to the present invention.

<Description of the symbols for the main parts of the drawings>

102: calling terminal 104: first communication network

106: outgoing exchange 108: outgoing home location register

110: gateway device 112: roaming signal network

114: incoming exchange 116: incoming home location register

118: second communication network 120: destination exchange

Claims (12)

A communication service system that provides an international roaming call service, When an international roaming call call is requested from the calling terminal to the called terminal through the network, the country code is analyzed to determine the relevant country, and the specific network that charges the lowest rate is determined by referring to the preset network operator table for each country. A calling exchange switch which routes to the determined communication network and requests route information including location information of the called terminal, and performs an international roaming call call connection to the called terminal according to the route information provided accordingly; Roaming means for performing information transmission and international roaming call connection by routing to the communication network determined through the originating exchange; A destination exchange providing route information of the called terminal according to the request for route information from the originating exchange through the roaming means, and performing an international roaming call call connection from the originating exchange; Communication service system using a mobile communication terminal comprising a. The method of claim 1, The communication service system, An originating home location register that registers and stores location information of the calling terminal in association with the calling exchange, and requests the routing information to the called exchange through the roaming means in response to a request for route information from the calling terminal; A destination home location register that provides the route information including location information of the called terminal in response to a request for route information from the called terminal in association with the called exchange; Communication service system using a mobile communication terminal comprising a. The method of claim 1, The roaming means, A gateway device for performing call routing and transmission and reception of various information by performing a routing function to the determined communication network for international roaming call call connection between the originating exchange and the incoming exchange period; A signal roaming function including a STP (Signaling Transfer Point), performing a roaming function to the determined communication network, and interworking with the gateway device to perform transmission and reception of the call call and various types of information in the call exchange period with the originating exchange; Mans Communication service system using a mobile communication terminal comprising a. The method of claim 1, In the case of a synchronous wireless communication network, the communication network includes a BTS for receiving and transmitting radio communication signals between the calling terminal and the called terminal, and a BSC for controlling the base station and communicating with the exchange. Communication service system using. The method of claim 1, The communication network is a mobile communication, characterized in that the asynchronous wireless communication network consisting of a node B for receiving and transmitting the radio communication signals of the originating terminal and the destination terminal and the RNC to control the node B to communicate with the switch. Communication service system using a communication terminal. A communication service method for providing an international roaming call service, When an international roaming call connection is requested from the calling terminal to the called terminal through a communication network, determining a corresponding country by analyzing a country code input through the calling terminal at the calling exchange; Determining a specific communication network that charges the lowest fee according to a predetermined network operator table for each country for the determined country; Routing and roaming to the determined communication network, requesting route information including location information of the called terminal to the called exchange; If the route information including the location information is provided to the originating exchange, connecting an international roaming call between the originating terminal and the called terminal through the originating exchange and the terminating exchange; Communication service method using a mobile communication terminal comprising a. The method of claim 6, The communication network operator table preset for each country includes a country name, a communication network operator name, a communication network name, communication network information, and billing information. The method of claim 6, The routing and roaming to the determined communication network is performed through a gateway device and a signal roaming network. The method of claim 8, The signal roaming network is a communication service method using a mobile communication terminal, characterized in that it comprises a STP (Signaling Transfer Point). The method of claim 6, The route information including the location information includes Temporary Local Directory Number (TLDN) information of the called terminal. The method of claim 6, In the case of a synchronous wireless communication network, the communication network includes a BTS for receiving and transmitting radio communication signals between the calling terminal and the called terminal, and a BSC for controlling a base station and communicating with a switch. Communication service method using. The method of claim 6, The communication network is a mobile communication, characterized in that the asynchronous wireless communication network consisting of a node B for receiving and transmitting the radio communication signals of the originating terminal and the destination terminal and the RNC to control the node B to communicate with the switch. Communication service method using a communication terminal.

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