KR101077482B1 - System and Method for Connecting Call Using Small-Size Base Station - Google Patents

System and Method for Connecting Call Using Small-Size Base Station Download PDF

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KR101077482B1
KR101077482B1 KR1020080038343A KR20080038343A KR101077482B1 KR 101077482 B1 KR101077482 B1 KR 101077482B1 KR 1020080038343 A KR1020080038343 A KR 1020080038343A KR 20080038343 A KR20080038343 A KR 20080038343A KR 101077482 B1 KR101077482 B1 KR 101077482B1
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South Korea
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information
base station
small base
location information
terminal
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KR1020080038343A
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Korean (ko)
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KR20090112441A (en
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김정근
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에스케이 텔레콤주식회사
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Abstract

The present invention relates to a call connection system and method using a small base station.

The present invention stores the small base station service subscriber information, receives the small base station service processing request message, confirms that the calling terminal is located within the coverage of the small base station, and requests the location information of the called terminal to receive the call including the terminating service area identification information. After receiving the terminal location information, the calling terminal location information including the calling service area identification information and the destination terminal location information are compared to determine whether the charging method information is free or discount depending on whether the calling terminal location information and the destination terminal location information match. It provides a call connection system using a small base station, characterized in that it comprises a service control device for transmitting to include the charge method information in the call connection message after setting to one or a general charge.

According to the present invention, when the calling terminal and the called terminal are located within the coverage of the small base station, since the charge for the call that the calling terminal connects to the called terminal is free or discounted, an increase in the number of users using the small base station can be expected. have.

Small base station, femtocell, call, voice, free, discount, coverage

Description

System and Method for Connecting Call Using Small-Size Base Station}

The present invention relates to a call connection system and method using a small base station. More particularly, the present invention relates to a system and method for freely processing or discounting a call between a calling terminal and a called terminal located within the coverage of a small base station.

As the use of mobile communication services is becoming more common, each mobile service provider is making great efforts to improve call quality of mobile communication services, such as installing a repeater in a shaded area.

In recent years, by replacing femtocell, a small base station equipment with its own capacity, in the home or office instead of the indoor repeater that was in charge of radio relay, it is possible to improve the coverage of mobile communication service and expand the bandwidth. It is attracting attention as a wired / wireless integrated service method.

The small base station is connected to the existing mobile communication network through the Internet line to form a coverage of the small indoor base station itself, and it is expected that the service quality will be improved by eliminating the shadow area and various additional services may be implemented in the base station area. have.

Additional services that can be provided using a small base station include voice calls between the caller and the receiver located within the coverage of the small indoor base station, such as a regional-based virtual private network service that conventionally provides free or discounted calls between the caller and the called party located in a particular area, It is expected to provide services such as multimedia messaging system (MMS), short message service (SMS) and free or discounted packet data transmission and reception, but no specific service plan has been established. Therefore, the service plan for this situation is required.

In order to meet the above-described needs, an object of the present invention is to provide a system and method for freely processing or discounting a call between a calling terminal and a called terminal located within the coverage of a small base station.

In order to achieve the above object, the present invention provides a system for connecting a call between a calling terminal and a called terminal, and forms its own coverage and, when the calling terminal is located within the coverage, calls from the calling terminal. A small base station for receiving and transmitting a configuration message; The small base station is connected to the small base station through an Internet line, and upon receiving the call establishment message, transmits a small base station service processing request message including an originating service area identification information, and receives a routing information request message, and receives routing information response including the destination exchange address information. Transmits a message, and when the receiving location information request message is received, transmits the receiving location information response message including the terminating service area identification information; when receiving a call connection message including the charging method information, connects the call to the charging method information. A communication network for generating free or discounted billing information or general billing information accordingly; Storing the small base station service subscriber information, receiving the small base station service processing request message, confirming that the calling terminal is located in the coverage, and requesting the location information of the called terminal, and including the called service area identification information. After receiving the location information, the calling method location information including the calling service area identification information and the called terminal location information are compared, and the charging method information is free and according to whether the calling terminal location information and the called terminal location information match. A service control device configured to set one of the discounts or the general charges, and transmit the charge type information in the call connection message; And when the location information is requested from the service control device, transmits the routing information request message and the called location information request message to the communication network to receive the routing information response message and the called location information response message, and then the incoming call. It provides a call connection system using a small base station, characterized in that it comprises a location information query server for generating terminal location information and transmitting to the service control device.

According to another object of the present invention, there is provided a method for connecting a call between a calling terminal and a called terminal, the method comprising: (a) transmitting a call setup message to a communication network through a small base station at a calling terminal; (b) transmitting a small base station service processing request message including originating service area identification information to a service control apparatus in a communication network; (c) checking, by the service control device, whether the originating terminal has subscribed to the small base station service and the originating location, and transmitting an incoming response report request message to the communication network; (d) transmitting an incoming response report message including called terminal identification information in the communication network to the service control device; (e) checking, by the service control device, that the called terminal subscribes to the small base station service through the called terminal identification information; (f) requesting, by the service control apparatus, location information of the called terminal from a location information inquiry server, and receiving destination terminal location information including called service area identification information from the location information inquiry server; (g) determining, by the service control device, whether or not the calling terminal location information including the calling service area identification information matches the called terminal location information; (h) setting the charging method information as free or discount if the calling terminal location information and the called terminal location information in step (g) match; (i) setting the charging method information to general charging if the calling terminal location information and the called terminal location information do not match in step (g); (j) the service control device including the charging method information in a call connection message and transmitting it to the communication network; And (k) connecting the call in the communication network and generating free or discounted billing information or generating general billing information according to the billing method information. do.

As described above, according to the present invention, when the calling terminal and the called terminal are located within the coverage of the small base station, the user using the small base station is free of charge or a discount for the call connected to the called terminal. It can be expected to increase the number of subscribers, and the lock-in effect of the subscriber can be expected through the provision of a new additional service using a small base station.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a block diagram schematically showing the configuration of a system according to a preferred embodiment of the present invention.

The system according to the preferred embodiment of the present invention includes the calling terminal 112, the called terminal 114, the communication network 130, the service control device 140, the location information inquiry server 150 and the billing server 160. .

In the present invention, the communication network 130 is a communication system (that is, a call connection communication system) for connecting a call in a circuit (Circuit) or packet (Packet) method, that is, code division multiple access (CDMA), Wideband Code Division (WCDMA) Multiple Access), Wibro (Wireless Broadband Internet), IP Protocol Subsystem (Inter Protocol Multimedia Subsystem), and any one of the next generation networks to be implemented. Here, IP Multimedia Subsystem is a technology for providing new services in the All-IP based next generation communication environment, and establishes a mobile communication network and a wired network based on IP to connect various communication services regardless of platform. It is an integrated convergence system.

The calling terminal 112 and the called terminal 114 are terminals that subscribe to a small base station service according to a preferred embodiment of the present invention. A personal digital assistant (PDA), a cellular phone, a personal communication service (PCS) phone, and a GSM (Global) System for Mobile (Wi-CDMA) phone, Wideband CDMA (W-CDMA) phone, CDMA-2000 phone, Mobile Broadband System (MBS) phone, Digital Multimedia Broadcasting (DMB) phone, and WiBro phone.

In the present invention, the small base station service is a transmission fee of a call that the calling terminal 112 connects to the called terminal 114 when the calling terminal 112 and the called terminal 114 are located within the coverage of the small base station 120. Free or discounted service. Here, the call is either a voice call or a video call.

The calling terminal 112 sends a call to the called terminal 114, and the called terminal 114 calls the calling call sent from the calling terminal 112. FIG. In the present invention, when the calling terminal 112 and the called terminal 114 are located in the coverage of the small base station 120 to be described later, the calling terminal 112 is free or charges for the call connected to the called terminal 114 Get a discount.

The small base station 120 is connected to the communication network 130 through an internet line to form a coverage of the small base station 120 itself.

In the present invention, when the power source is connected, the small base station 120 transmits when the calling terminal 112 is located within the coverage of the small base station 120 or when the calling terminal 112 enters the coverage of the small base station 120. The terminal 112 receives the connection request message transmitted to register the location and transmits it to the switching center included in the communication network 130, and receives the call setup message from the calling terminal 112 located in the coverage area and transmits it to the switching center. Here, of course, the connection request message and the call setup message are transmitted to the switching center via the base station controller.

The communication network 130 performs a function of connecting a call between the originating terminal 112 and the called terminal 114 through data transmission and reception with the service control device 140 and data transmission and reception with the location information inquiry server 150.

Although not shown in FIG. 1, the communication network 130 may include a base station control unit, an exchange station, and a terminal information management unit. Here, when the communication network 130 is a CDMA network, the base station control unit will be a base station controller (BSC), an exchange station will be a mobile switching center (MSC), and the terminal information management unit will be a home location register (HLR), and the communication network 130 is a WCDMA. In the case of a network, the base station controller may be a Radio Network Controller (RNC), a switching station may be a Serving GPRS Support Node (SGSN), and the terminal information manager may be a home location register (HLR).

In addition, when the communication network 130 is a WiBro network, an access control router (ACR) functions as a base station controller and an exchange station, a home agent (HA) performs a function of a terminal information management unit, and the communication network 130 is an IP multimedia. In the case of a subsystem, the base station control unit may be an RNC, the switching center may be a call session control function (CSCF), and the terminal information management unit may be a home subscriber server (HSS).

Description of the configuration of the base station control unit, switching center and the terminal information management unit included in the communication network 130 in the present invention is as follows.

First, the base station controller performs a function for radio resource management of the communication network 130 and a management function for the conventional base station and the small base station 120.

In the present invention, the base station control unit is connected to the small base station 120 through the Internet line, when the small base station 120 transmits a connection request message to the switching station, the cell (ID) identification information (Cell ID) information, Initial terminal registration message (for example, Initial UE message) including originating service area identification information, which is a service area identification (SAI: Service Area Identity) of the calling terminal 112 including the small base station ID information and the base station control unit ID information. Send to the switching center.

The switching center manages the mobility management of the mobile communication terminal, the radio link or the wired link, and performs billing processing, system operation, interworking with other networks, and processing of incoming and outgoing calls of subscribers.

In the present invention, when the switching center receives the initial terminal registration message from the base station controller, the switching center updates the location information of the calling terminal 112 stored in the terminal information management unit to perform the location registration of the calling terminal 112, and the small size from the terminal information management unit. After receiving the subscriber information insertion message including the base station service subscriber information and triggering detection point (TDP) information, the small base station service subscriber information and the TDP information included in the subscriber information insertion message are stored. Here, the TDP information triggers the intelligent network when receiving a call setup message (Set Up) at the switching center.

In addition, when the switching center receives the call setup message sent from the calling terminal 112, it checks whether the calling terminal 112 is subscribed to the small base station service by comparing the calling terminal identification information with the small base station service subscriber information. Here, the call setup message includes the calling terminal identification information and the called terminal identification information, wherein the identification information is Mobile Identification Number (MIN), International Mobile Station Identity (IMSI), Mobile Directory Number (MDN), Mobile Station International ISDN Number) and IP (Internet Protocol) address.

If the calling terminal 112 is a terminal subscribed to the small base station service, the switching center determines the cell ID, the small base station ID information, the base station control unit ID at which the calling terminal 112 is located in the small base station service processing request message (Initial DP) through the TDP information. The calling service area identification information including the information is transmitted to the service control device 140.

In addition to the originating service area identification information, the small base station service processing request message includes the originating terminal identification information, the originating switching station address information, and the called terminal identification information, which are previously defined parameters. Here, the source switching center address information includes any one of source MSC address information, source SGSN address information, source ACR address information, and source CSCF address information.

In addition, when the switching center receives an incoming response report request message (for example, a Request Report BCSM Event message) from the service control device 140, the switching center checks the area where the called terminal 114 is located and then calls the service control device 140. An incoming response report message (eg, an Event Report BCSM message) including the terminal identification information is transmitted.

On the other hand, when the switching center receives the incoming location information request message from the location information inquiry server 150, it transmits the incoming location information response message including the destination service area identification information to the location information inquiry server 150. Here, the called service area identification information includes cell ID information, small base station ID information, and base station controller ID information in which the called terminal 114 is located.

In addition, upon receiving a call connection message from the service control device 140, after setting up a call call between the calling terminal 112 and the called terminal 114, free or discount charging according to the charging method information included in the call connection message Creates a call detail record (CDR) or general charging information, and transmits it to the charging server 160.

In the present invention, the charging method information is the charging method of the short message transmitted from the calling terminal 112 to the called terminal 114 is set to free or discount or set to general charging. For example, if the charging method information is "no-charging flag", if the charging method is free or discount, "no charging flag" is set to "1". If the charging method is general charging, the "no charging flag" is " 0 "may be set.

In the present invention, for convenience of explanation, the source and destination exchange stations are limited to the same exchange, that is, the source terminal 112 and the destination terminal 114 are located in an area managed by one exchange station. If not, the originating exchange station and the destination exchange station may be different. In this case, the calling terminal 112 and the called terminal 114 are not located within the coverage of the small base station 120, but are far apart.

The terminal information management unit manages terminal information, subscription information, location information, etc. of a terminal including the calling terminal 112 and the called terminal 114, performs an authentication function, and stores profile information of the terminal.

In the present invention, the terminal information management unit receives and stores small base station service subscriber information from a CDS (Client database Server) (not shown), and provides an intelligent network call for providing a free or discounted service between terminals subscribed to the small base station service. Set up and store Originated-CAMEL Subscription Information (O-CSI) information for processing, and when the location registration of the originating terminal 112 is performed by the switching center, the subscriber information insertion message including the small base station service subscriber information and the TDP information is exchanged. To transmit.

In addition, when the terminal information management unit receives a routing information request message from the location information inquiry server 150, the terminal information management unit sends a routing information response message including the destination exchange station address information, which is the exchange station address information of the region where the destination terminal 114 is located. The location information inquiry server 150 transmits. Here, the destination exchange station address information includes any one of the destination MSC address information, the destination SGSN address information, the destination ACR address information, and the destination CSCF address information.

As described above, when the communication network 130 receives the connection request message of the calling terminal 112 through the small base station 120, the communication network 130 updates the location information of the calling terminal 112 and is located within the coverage of the small base station 120. When receiving the call setup message from the 112, the service control device 140 transmits a small base station service processing request message to request the service control device 140 to process the call service.

In addition, when the communication network 130 receives the incoming response report request message from the service control device 140, after confirming the region where the called terminal 114 is located, the communication response report including the called terminal identification information to the service control device 140 is reported. Send a message.

When the network 130 receives the routing information request message from the location information inquiry server 150, the communication network 130 transmits a routing information response message including the destination exchange address information to the location information inquiry server 150, and from the location information inquiry server 150. When receiving the called location information request message, the called party includes the called service area identification information, which is the service area identification information of the called terminal 114 including the cell ID information, the small base station ID information, and the base station controller ID information where the called terminal 114 is located. The location information response message is transmitted to the location information inquiry server 150.

On the other hand, when the communication network 130 receives the call connection message from the service control device 140, after setting up a call call between the calling terminal 112 and the called terminal 114, the communication method to the billing method information included in the call connection message The free or discounted billing information is generated or general billing information is generated and transmitted to the billing server 160.

The service control device 140 includes a service control point (SCP) that performs service control such as eligibility check of information received from the service exchanger (SSP) and translation of routing information.

In the present invention, the service control device 140 stores a small base station ID database in which a plurality of small base station ID information is stored in a database, and receives and stores small base station service subscriber information from a client database server (CDS) (not shown).

When the service control device 140 receives the small base station service processing request message including the outgoing service area identification information from the communication network 130, the small base station ID information included in the outgoing service area identification information is information included in the small base station ID database. By confirming that, the originating terminal 112 confirms that it is located within the coverage of the small base station 120. Here, when the originating service area identification information does not include the small base station ID information and includes the conventional base station ID information, that is, when the calling terminal 112 is not located in the small base station coverage and is located in the conventional base station (not shown). The service control device 140 confirms that the conventional base station ID information is not included in the small base station ID database, thereby confirming that the originating terminal 112 is not located within the coverage of the small base station 120, The call charged by the 112 to the called terminal 114 may be charged a general charge, or the call may be aborted.

Meanwhile, the service control device 140 transmits an incoming response report request message to the communication network 130 and receives an incoming response report message, which is a response thereto, from the communication network 130.

When the service control device 140 confirms that the called terminal 114 is subscribed to the small base station service by comparing the called terminal identification information included in the incoming response report message with the small base station service subscriber information, the location of the called terminal is small. Request location information of the called terminal to the location information query server 150 to determine whether it is located within the coverage of 120 to receive the destination terminal location information, which is the location information of the called terminal 114 from the location information query server 150 Receive. Here, the destination terminal location information includes the destination service area identification information and the destination exchange station address information.

The service control apparatus 140 compares the calling terminal location information including the calling service area identification information and the calling switching center address information with the called terminal location information so that the calling terminal location information matches the called terminal location information, that is, the called terminal 114 When the calling terminal 112 is located within the coverage of the small base station 120 in which the calling terminal 112 is located, the charging method information of the call originating from the calling terminal 112 to the called terminal 114 is set as free or discount, and the call connection message is set. It includes and transmits to the communication network (130). Here, the source terminal location information is information obtained by combining the source service area identification information and the source switching center address information in the service control device 140.

On the other hand, the service control device 140, the caller terminal location information and the destination terminal location information is inconsistent, that is, the caller service area identification information and the destination service area identification information is inconsistent, and the caller terminal address information and the destination exchange station address information is inconsistent If the called terminal 114 is not located within the coverage of the small base station 120 in which the calling terminal is located, including at least one of the cases, the calling terminal 112 receives the charging method information of the call sent to the called terminal 114. Set to general charging, including this in the call connection message and transmits it to the communication network (130).

In the present invention, using the exchange address information to determine that the calling terminal location and the called terminal location are located within the coverage of the small base station 120, the small base station ID information and the base station control unit ID information may be duplicated for each switching station. In this case, it is to distinguish that the small base station ID information and the base station control unit ID information are used in a specific switching center corresponding to the switching center address information.

When the location information inquiry server 150 receives the location information of the destination terminal 114 from the service control device 140, the location information inquiry server 150 transmits a routing information request message to the communication network 130 to transmit a routing information response message including the destination exchange address information. After receiving from the communication network 130 and receiving the called location information response message including the called service area identification information from the communication network 130 by receiving the received location information request message to the communication network 130, and then receiving the destination service area identification information and the destination switching center. The destination terminal location information including the address information is transmitted to the service control device 140.

The billing server 160 processes the charge of the call originated by the calling terminal 112 to the called terminal 114 for free or discount or as general billing.

2 and 3 are flowcharts illustrating a call connection process using a small base station according to a preferred embodiment of the present invention.

When the calling terminal 112 transmits the connection request message to the communication network 130 through the small base station 120, the communication network 130 updates the location information of the calling terminal 112 (S205 and S210).

When the communication network 130 receives a call setup message from the calling terminal 112 located within the coverage of the small base station 120, that is, the calling terminal 112 transmits the call setting message to the communication network 130 through the small base station 120, The small base station service processing request message including the service area identification information is transmitted to the service control device 140 (S215 and S220). Here, the small base station service processing request message includes the calling terminal identification number, the calling terminal address information, and the called terminal telephone number, which are previously defined parameters, in addition to the calling service region identification information.

When the service control device 140 receives the small base station service processing request message including the originating service area identification information from the communication network 130, confirms that the calling terminal 112 is located within the coverage of the small base station 122, and then the communication network 130. Incoming response report request message is transmitted to (S225, S230). Here, if the calling terminal 112 is not located within the coverage of the small base station 122, the service control device 140 allows the general terminal to be charged for the call made by the calling terminal 112 to the called terminal 114, You can stop the call.

After receiving the incoming response report request message, the communication network 130 transmits the incoming response report message to the service control device 140 after confirming the region where the called terminal 114 is located (S235 and S240).

When the service control device 140 receives the incoming response report message and confirms that the called terminal 114 subscribes to the small base station service through the called terminal identification information included in the incoming response report message, the service information retrieval server ( 150, the receiver terminal location information is requested (S245, S250).

The location information inquiry server 150 receiving the request for the terminal location information transmits a routing information request message to the communication network 130 to receive a routing information response message including the address of the destination exchange station from the communication network 130, and the communication network 130. After receiving the destination location information request message to the destination location information response message including the destination service area identification information from the communication network 130, and controls the destination terminal location information including the destination service area identification information and the destination switching center address information It transmits to the device 140 (S255, S260, S265, S270, S275). Here, the called service area identification information includes cell ID information, small base station ID information, and base station controller ID information in which the called terminal 114 is located.

The service control apparatus 140 compares the calling terminal location information including the calling service area identification information and the calling switching center address information with the called terminal location information so that the calling terminal location information matches the called terminal location information, that is, the called terminal 114 If the calling terminal 112 is located within the coverage of the small base station 120 located, the calling terminal 112 sets the charging method information of the call made to the called terminal 114 as free or discount, and sets the call connection message to the call connection message. It includes and transmits to the communication network 130 (S280, S285). Here, when the calling terminal location information and the called terminal location information are inconsistent, the charging method information of the call made by the calling terminal 112 to the called terminal 114 is set to general charging, and the communication network is included in the call connection message. Send to 130.

After receiving the call connection message from the service control device 140, the communication network 130 establishes a call between the calling terminal 112 and the called terminal 114, and generates discounted billing information according to the billing method information or general billing. The information is generated and transmitted to the charging server 160 (S290 and S295). Here, the charging server 160 processes the charge of the call made by the calling terminal 112 to the called terminal 114 for free or discount processing or as general charging.

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

As described above, the present invention is applied to the field of small base station services, and when the calling terminal and the called terminal are located within the coverage of the small base station, the fee for the short message transmitted by the calling terminal to the called terminal is free or discounted. As a result, the number of users using the small base station can be expected to increase, and a new lock-in effect of the subscriber can be expected by providing a new additional service using the small base station.

1 is a block diagram schematically showing the configuration of a system according to a preferred embodiment of the present invention;

2 and 3 are flowcharts illustrating a call connection process using a small base station according to a preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

112: calling terminal 114: called terminal

120: small base station 130: communication network

140: service control device 150: location information query server

160: billing server

Claims (15)

In the system for connecting a call between the calling terminal and the called terminal, A small base station which forms its own coverage and receives a call setup message from the originating terminal when the originating terminal is located in the coverage and transmits it to a call connection communication system; The small base station is connected to the small base station through an internet line, and upon receiving the call establishment message, transmits a small base station service processing request message including an originating service area identification information, and receives a routing information request message, and receives routing information response including the destination exchange address information. Transmits a message, and when the receiving location information request message is received, transmits the receiving location information response message including the terminating service area identification information; when receiving a call connection message including the charging method information, connects the call to the charging method information. A call connection communication system for generating free or discounted billing information or generating general billing information accordingly; Storing the small base station service subscriber information, receiving the small base station service processing request message, confirming that the calling terminal is located in the coverage, and requesting the location information of the called terminal, and including the called service area identification information. After receiving the location information, the calling method location information including the calling service area identification information and the called terminal location information are compared, and the charging method information is free and according to whether the calling terminal location information and the called terminal location information match. A service control device configured to set one of the discounts or the general charges, and transmit the charge type information in the call connection message; And When the location information is requested from the service control device, after receiving the routing information response message and the called location information response message by transmitting the routing information request message and the called location information request message to the call connection communication system, Location information query server for generating the destination terminal location information and transmitting to the service control device Call connection system using a small base station comprising a. The method of claim 1, The call-connected communication system includes any one of Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Wireless Broadband Internet (Wibro), and an Inter Protocol Multimedia Subsystem (IP). Call connection system using a small base station. The method of claim 1, wherein the call connection communication system A base station control unit connected to the small base station via the Internet line and transmitting an initial terminal registration message including the originating service area identification information when the originating terminal registers a location within the coverage; Receiving the initial terminal registration message, and receiving the call setup message, transmits the small base station service processing request message to the service control device, receives the called location information request message from the location information inquiry server, and receives the incoming call. An exchange station that transmits a location information response message to the location information inquiry server, and connects the call and generates free or discounted billing information or general billing information according to the billing method information when the call connection message is received; Store the small base station service subscriber information, transmit a subscriber information insertion message including the small base station service subscriber information to the switching center, and transmit the routing information response message to the location information inquiry server upon receiving the routing information request message. Terminal information management section to say Call connection system using a small base station comprising a. The method of claim 1, The originating service region identification information includes cell ID (identification) information, small base station ID information, and base station controller ID information in which the originating terminal is located, and the terminating service region identification information is a cell ID information in which the called terminal is located. And a small base station ID information and a base station control unit ID information. The method of claim 1, The destination switching center address information includes any one of a destination MSC address information, a destination SGSN address information, a destination ACR address information, and a destination CSCF address information. The method of claim 1, Wherein the calling terminal location information further includes calling party switching station address information, and the called terminal location information further comprises called party switching station address information. The method of claim 6, The source switching center address information includes any one of an originating MSC address information, an originating SGSN address information, an originating ACR address information, and an originating CSCF address information. The method of claim 1, And the small base station service processing request message further includes calling terminal identification information, calling party switching center address information, and called terminal identification information. The method of claim 1, And the service control device sets the charging method information as free or discount if the calling terminal location information and the called terminal location information match. The method of claim 1, And the service control device sets the charging method information to general charging when the calling terminal location information and the called terminal location information do not match. The method of claim 1, And when the call connection communication system receives an incoming response report request message from the service control device, transmits an incoming response report message including called terminal identification information to the service control device. In the method for connecting the call between the calling terminal and the called terminal, (a) transmitting, by the originating terminal, a call setup message to the communication network through the small base station; (b) transmitting a small base station service processing request message including originating service area identification information to a service control apparatus in the communication network; (c) checking, by the service control device, whether the originating terminal has subscribed to the small base station service and the originating location, and transmitting an incoming response report request message to the communication network; (d) transmitting an incoming response report message including called terminal identification information in the communication network to the service control device; (e) checking, by the service control device, that the called terminal subscribes to the small base station service through the called terminal identification information; (f) requesting, by the service control apparatus, location information of the called terminal from a location information inquiry server, and receiving destination terminal location information including called service area identification information from the location information inquiry server; (g) determining, by the service control device, whether or not the calling terminal location information including the calling service area identification information matches the called terminal location information; (h) setting the charging method information as free or discount if the calling terminal location information and the called terminal location information in step (g) match; (i) setting the charging method information to general charging if the calling terminal location information and the called terminal location information do not match in step (g); (j) the service control device including the charging method information in a call connection message and transmitting it to the communication network; And (k) connecting the call in the communication network and generating free or discounted billing information or general billing information according to the billing method information; Call connection method using a small base station comprising a. 13. The method of claim 12, The originating service region identification information includes cell ID (identification) information, small base station ID information, and base station controller ID information in which the originating terminal is located, and the terminating service region identification information is a cell ID information in which the called terminal is located. And a small base station ID information and a base station control unit ID information. 13. The method of claim 12, Wherein the calling terminal location information further includes calling calling station address information, and the called terminal location information further includes called calling station address information. 13. The method of claim 12, (l) transmitting the free or discounted billing information to a billing server in the communication network, or transmitting the general billing information to the billing server; And (m) processing the charge of the call in the billing server for free or discount or as general billing; Call connection method using a small base station, characterized in that it further comprises.
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