KR100968960B1 - Apparatus and Method for Providing Location Information Using Gateway Location Register - Google Patents

Abstract

An apparatus and method for providing location information using a gateway location register are disclosed. An apparatus for providing location information of a roaming mobile terminal according to an embodiment of the present invention includes an identifier of a mobile terminal and a gateway location register (GLR) identifier from a home cellular system of the mobile terminal. Location information providing request receiving unit for receiving a first location information providing request comprising: Switching station identifier request sending unit for delivering a second location information providing request including the identifier of the mobile terminal to the gateway location register corresponding to the gateway location register identifier And an exchanger identifier receiver for receiving an identifier of a mobile switching center or packet switched support node in which the mobile terminal is located from a gateway location register and a location information extracting unit for extracting location information of the mobile terminal using an identifier of the mobile switching center or packet switched support node. can do. According to the present invention, there is an effect of providing a location information providing service in a roaming service configuration including a multiplexed GLR.

Roaming, Positioning, Location Measurement, Roaming, Location Determination

Description

Apparatus and Method for Providing Location Information Using Gateway Location Register}

The present invention relates to an apparatus and method for providing location information, and more particularly, to an apparatus and method for providing location information using a mobile terminal.

With the recent widespread use of mobile phones, most people use them.

In addition, due to the development of transportation, a case of roaming service is increasing in order to continue to use the mobile phone while crossing the border. In particular, inbound roaming, which takes mobile phones from Korea to foreign countries, as well as inbound roaming, which takes mobile phones from Korea to foreign countries, is increasing.

In addition, there is a growing demand for users to continue receiving location location services while receiving roaming services.

Due to the recent increase in roaming subscribers, the importance of GLR (Gateway Location Register) has increased, so GLR is configured as multiplexing. Therefore, in order to locate roaming subscribers, it is registered in HLR (Home Location Register). There is a problem that cannot be performed using only the information obtained.

The present invention has been proposed to solve the above problems, and an object thereof is to provide an apparatus and method for providing a location information providing service in a roaming service configuration including a multiplexed GLR.

According to an aspect of the present invention, a location information providing apparatus is provided.

An apparatus for providing location information of a roaming mobile terminal according to an embodiment of the present invention may include an identifier and a gateway location register (GLR) of the mobile terminal from a home cellular system of the mobile terminal. A location information providing request receiver for receiving a first location information providing request including an identifier and an exchange station identifier for delivering a second location information providing request including an identifier of the mobile terminal to a gateway location register corresponding to the gateway location register identifier The location information of the mobile terminal is obtained by using a request originating unit, an exchange station identifier receiving unit for receiving the identifier of the mobile switching center or packet switching support node in which the mobile terminal is located from the gateway location register, and an identifier of the mobile switching center or packet switching support node. To extract It may include a location information providing device including a location information extraction unit.

The location information providing apparatus of a roaming mobile terminal according to another embodiment of the present invention may include a location information providing request receiver for receiving a first location information providing request including an identifier of the mobile terminal, and an identifier of the mobile terminal. A GLR identifier request sender for transmitting a second location information providing request to a home location register, a GLR identifier receiver for receiving a gateway location register identifier corresponding to the identifier of the mobile terminal from the home location register, and an identifier of the mobile terminal Switching station identifier request originator for transmitting a third location information providing request to a gateway location register corresponding to the gateway location register identifier, an identifier of a mobile switching center or packet switching support node managing the mobile terminal from the gateway location register. To receive And a location information extracting unit for extracting location information of the mobile terminal using an identifier of an exchange station identifier receiving unit and an identifier of the mobile switching center or packet switching support node.

In addition, according to another aspect of the present invention, a method of providing location information is provided.

The location information providing method of a roaming mobile terminal performed in a location information providing apparatus according to an embodiment of the present invention includes a first location including an identifier of the mobile terminal and a gateway location register identifier from a home cellular system of the mobile terminal. Receiving an information providing request, forwarding a second location information providing request including an identifier of the mobile terminal to a gateway location register corresponding to the gateway location register identifier, and moving the mobile terminal in which the mobile terminal is located from the gateway location register Receiving an identifier of a switching center or packet switched support node and extracting location information of the mobile terminal using the identifier of the mobile switching center or packet switched support node.

According to another embodiment of the present invention, a method for providing location information of a roaming mobile terminal performed by an apparatus for providing location information includes receiving a request for providing first location information including an identifier of the mobile terminal, and including the identifier of the mobile terminal. Transmitting a second location information providing request to a home location register, receiving a gateway location register identifier corresponding to the identifier of the mobile terminal from the home location register, and third location information including the identifier of the mobile terminal; Forwarding the provision request to a gateway location register corresponding to the gateway location register identifier, receiving an identifier of a mobile switching center or packet switching support node managing the mobile terminal from the gateway location register and the mobile switching center or packet switching Of support nodes It may include the step of extracting the location information of the mobile terminal by using characters.

According to the present invention, there is an effect of providing a location information providing service in a roaming service configuration including a multiplexed GLR.

Hereinafter, preferred embodiments of the apparatus and method for providing location information according to the present invention will be described in detail with reference to the accompanying drawings. In the following description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals. Duplicate description thereof will be omitted.

1 is a network diagram of a system for providing location information according to an embodiment of the present invention.

Referring to FIG. 1, a system for providing location information according to an embodiment of the present invention may include a first communication network 100 and a second communication network 101.

Hereinafter, for convenience, it is assumed that the first communication network 100 is a communication network in Korea, and the second communication network 101 is assumed to be a communication network in Japan, and will be described based on the first communication network 100.

That is, the inbound roaming terminal is a terminal originally belonging to the second communication network 101 in Japan, and refers to a terminal receiving a service using the first communication network 100 in Korea through a roaming procedure.

The outbound roaming terminal is a terminal originally belonging to the first communication network 100 in Korea, and refers to a terminal receiving a service using the second communication network 101 in Japan through a roaming procedure.

The first communication network 100 may include a GMLC 110, a gateway mobile location center, an HLR 120, a home location register, a GLR 130, a gateway location register, and an MSC. Mobile switching center) / SGSN (Packet Switching Support Node) 140 and PG 150 (positioning gateway).

The GMLC 110 receives the request for providing the location information of the mobile terminal and inquires the HLR 120 and the GLR 130 to obtain the identifier of the MSC / SGSN 140 and extract the location information. Detailed description of the GMLC 110 will be described later with reference to FIGS. 2 to 7.

The HLR 120 receives the mobile station's location information request and returns the identifier of the MSC / SGSN 140 where the mobile terminal is located or the identifier of the GLR 130. A detailed description of the HLR 120 will be described later with reference to FIGS. 5 to 7.

The GLR 130 receives a request for providing location information of the mobile terminal and returns an identifier of the MSC / SGSN 140 where the mobile terminal is located. Detailed description of the GLR 130 will be described later with reference to FIGS. 2 to 7.

The MSC / SGSN 140 manages the mobility of the mobile terminal. According to an embodiment, the MSC may be included in the first communication network 100, the SGSN may be included, or both the MSC and SGSN may be included.

In the following case, when the expression MSC / SGSN is used, the actual system may include only MSC, only SGSN, or both MSC and SGSN.

MSC refers to an exchange that provides circuit switching services to mobile subscribers in conjunction with a fixed network. An automated system that configures access points for user traffic between a mobile network and a public telephone network, or other mobile switching centers in the same or different mobile networks. Additional features include a call channel hand-off feature that tracks the location of mobile subscribers to provide mobile phone service at all times and to maintain communication services even when locations change.

SGSN is a node in charge of data packet delivery with mobile stations (mobile phones, PDAs, etc.) in the service area. It has functions such as packet routing and transmission, mobility management, logical link management, authentication, and charging, and the location register of the packet switched support node (SGSN) is the location information (cell , Visitor location register, etc.), user profile (international mobile station identification number: IMSI), and the like.

The PG 150 serves as a path for exchanging a request for providing location information or exchanging location information with the second communication network 101.

The second communication network 101 may include a GMLC 160, an HLR 170, an MSC / SGSN 180, and a PG 190.

The second communication network 101 may be configured similarly to the first communication network 100. Each component of the second communication network 101 may play a role similar to that of a component of the same name of the first communication network 100. However, the second communication network 101 may be slightly different from the first communication network 100 unless the contents are described later with reference to FIGS. 2 to 7. The second communication network 101 may also include a GLR, but hereinafter, it is assumed that the second communication network 101 does not include the GLR.

The PG 190 of the second communication network 101 exchanges a location information providing request or location information with the PG 150 of the first communication network 100. Communication between the PG 190 of the second communication network 101 and the PG 150 of the first communication network 100 may be performed by a Roaming Location Register protocol (RPL) or other promised protocol of 3GPP protocol. Can be. However, the communication protocol between the PG 190 of the second communication network 101 and the PG 150 of the first communication network 100 should be a protocol satisfying the following matters with reference to FIGS. 2 to 7.

For convenience, the description of the PGs 150 and 190 between the GMLC 110 of the first communication network 100 and the GMLC 160 of the second communication network 101 will be omitted, and the two GMLCs 110 and 160 communicate directly. Explain.

2 to 4, a method of providing location information of a terminal inbound roaming from the second communication network 101 to the first communication network 100 will be described.

2 is a call processing diagram of a method for providing location information according to an embodiment of the present invention.

In step S210, a request for providing location information is transmitted from the mobile terminal 200 to the GMLC 160 of the second communication network 101. As described above, the mobile terminal 200 originally belongs to the second communication network 101 and is a terminal inbound roamed into the first communication network 100.

In step S210, a request for providing location information is transmitted from the mobile terminal 200 to the second communication network 101. For example, it may be assumed that a user of the mobile terminal 200 selects a location information providing menu.

In this embodiment, the location information providing request is transmitted from the mobile terminal 200, but for example, when the user wants to check the location on the web site, the location information providing request may be delivered from the web site or other management device. Hereinafter, for convenience, it is assumed that a request for providing location information is transmitted from the mobile terminal 200.

In this embodiment, although a request for providing location information is directly transmitted from the mobile terminal 200 to the second communication network 101, in practice, communication is performed through an intermediary device between the first communication network 100 and the second communication network 101. Done. For example, it may be assumed to be transmitted through the PGs 150 and 190, or may be transmitted through another device having a similar role.

In operation S220, the second communication network 101 transmits a request for providing first location information to the GMLC 110 of the first communication network 100.

In step S210 and step S220, the request for providing location information of the mobile terminal 200 is transmitted to the GMLC 110 of the first communication network 100 through the second communication network 101. For this transfer, the GMLC 160 or the PG 190 of the second communication network 101 may be used.

The first location information providing request includes an identifier (which may be one or more of MSID and IMSI) of the mobile terminal 200. In addition, the first location information providing request includes a GLR identifier managing an MSC / SGSN identifier in which the mobile terminal 200 is located.

The GLR identifier is transmitted from the first communication network 100 to the second communication network 101 at the time of roaming registration of the mobile terminal 200, or if there is a change in real time, or periodically, and the second communication network 101 The GLR identifier corresponding to the mobile terminal 200 is stored and transmitted when the request for providing location information is included.

There may be a plurality of GLRs 130 in the first communication system 100, in which case the GLR identifiers may be used to identify the GLRs 130. When the GLR 130 is singular, the GLR identifier may be used as information that the GLR 130 manages the MSC / SGSN identifier in which the mobile terminal 200 is located.

 In operation S230, the second location information providing request is transmitted to the GLR 130 corresponding to the GLR identifier received by the GMLC 110. The first location information providing request includes an identifier of the mobile terminal 200.

In step S240, the GLR 130 extracts the MSC / SGSN identifier corresponding to the identifier of the mobile terminal 200 and transmits it to the GMLC 110.

When the MSC / SGSN in which the mobile terminal 200 is located is changed by the movement of the mobile terminal 200, the information is transmitted to the GLR 130 in real time or periodically, so that the GLR 130 is currently in the mobile terminal. An identifier of the MSC / SGSN 140 where the 200 is located may be stored and transmitted to the GMLC 110 according to the request for providing the second location information.

GMLC 110, which has received the MSC / SGSN 140 identifier in steps S250 to S270, may extract location information of the mobile terminal 200 using the MSC / SGSN 140 identifier.

In step S250 GMLC 110 transmits the third location information providing request to the MSC / SGSN 140 corresponding to the MSC / SGSN 140 identifier received. The third location information providing request includes an identifier of the mobile terminal 200.

In step S260, the MSC / SGSN 140 extracts location information of the mobile terminal 200.

The location information extraction method of the mobile terminal 200 may be a variety of methods, such as a network method, a terminal method, and a hybrid method of these. In the network method using a channel of a mobile communication network, the method and accuracy of estimating the position of the terminal in the network using the direction and time of a signal from the terminal are somewhat inferior. In the terminal method using GPS, the GPS module is embedded in the terminal to estimate the position of the terminal. However, it is possible to accurately track the position of the terminal compared to the network method. . Hybrid approaches alleviate some of the shortcomings. In the network method, Cell ID for identifying the user's location through the service cell ID of the base station to which the user belongs, Receive Enhanced Cell ID and the signal of the terminal by adding the distance information between the base station and the terminal to the Cell ID method. Angle of Arrival (AOA) using the difference in signal reception angles at one of three base stations, Time of Arrival (TOA) using the difference in signal arrival time between one base station and two neighboring base stations, adjacent to the base station signal TDOA (Time Difference Of Arrival) for measuring the signal delay of the base stations. In the terminal method, A-GPS (Assisted-GPS) that the terminal reads the position information sent from the satellite and informs the base station, and DGPS (Differential GPS) corrects the error of the position signal received from the satellite by receiving a correction signal from a reference receiver on the ground. ). The hybrid method includes E-OTD (Enhanced Observed Time Difference), which transmits a radio wave from two or more base stations to a terminal to measure a difference in time when the radio wave returns.

When the location information providing request is received, the positioning may be performed, the positioning may be periodically performed, and when the request for providing the location information is received, the already-located information may be provided.

In step S270, the location information of the mobile terminal 200 extracted in the above manner is transferred to the GMLC 110. The location information of the mobile terminal 200 may be latitude, longitude information or address information.

In step S280 GMLC 110 transfers the location information of the received mobile terminal 200 to the second communication network (101). According to another embodiment, the location information of the mobile terminal 200 may be directly transmitted to another device or the mobile terminal 200 requesting the location information.

Although the process of steps S250 to S270 is performed in the embodiment of FIG. 2, according to another embodiment, location information itself of the MSC / SGSN 140 may be extracted as location information of the mobile terminal 200. In this case, the location information of the MSC / SGSN 140 should be directly stored by the GMLC 110 or stored in another server and inquired. In this case, the location information of the mobile terminal 110 provided to the user becomes an approximate information whose error corresponds to the range of the mobile switching center, but the positioning procedure is greatly simplified.

In operation S290, the second communication network 101 transmits the received location information of the mobile terminal 200 to the mobile terminal 200 requesting the location information. Accordingly, the user of the mobile terminal 200 may receive the current location of the mobile terminal 200 as an address or a map screen. According to another exemplary embodiment, the second communication network 101 may provide the location information obtained in step S280 to the web or another terminal.

3 is a flowchart illustrating a process of providing location information according to an embodiment of the present invention.

3 is a process for providing location information of a mobile terminal 200 inbound roamed from a home cellular system to a visited cellular system.

The home cellular system is a communication network to which the mobile terminal 200 originally belongs, and the second communication network 101 of FIG. 2 corresponds to this, and the visited cellular system is a communication network to which the mobile terminal currently belongs, and the first communication network 100 of FIG. 2. This is the case here.

3 may be performed by an apparatus for providing location information, for example, the GMLC 110.

For convenience, it is assumed that the process of FIG. 3 is performed by the GMLC 110.

In step S310 GMLC 110 receives a request to provide the first location information from the home cellular system.

The home cellular system receives a request for providing location information of the mobile terminal 200 from the mobile terminal 200, a web service, or other device, and thus transmits the first location information providing request to the GMLC 100.

The first location information providing request includes an identifier of the mobile terminal 200 and an identifier of the GLR 130 that stores the identifier of the MSC / SGSN 140 where the mobile terminal 200 is located.

When the first location information providing request does not include the identifier of the GLR 130, the MSC / SGSN 140 identifier may be extracted with reference to the HLR 120. If the first location information providing request has the MSC / SGSN 140 identifier, steps S320 to S330 are omitted.

The identifier of the GLR 130 is transmitted to the second communication network 101 at the time of roaming registration of the mobile terminal 200 or when there is a change periodically or in real time and reflects the information to the second communication network 101. The identifier of the GLR 130 that stores the MSC / SGSN 140 identifier in which the mobile terminal 200 is located is maintained.

In operation S320, the second location information providing request is transmitted to the GLR 130 corresponding to the identifier of the GLR 130. The second location information providing request includes an identifier of the mobile terminal 200.

In step S330, the MSC / SGSN 140 where the mobile terminal 200 is located is received from the GLR 130.

In operation S340, the third location information providing request is transmitted to the MSC / SGSN 140 corresponding to the identifier of the MSC / SGSN 140. The third location information providing request includes an identifier of the mobile terminal 200.

In step S350, the location information of the mobile terminal 200 is received from the MSC / SGSN 140. The MSC / SGSN 140 extracts location information of the mobile terminal 200 using a network method, a terminal method, a hybrid method, and the like described with reference to FIG. 2.

In the embodiment of FIG. 3, the MSC / SGSN 140 extracts location information of the mobile terminal 200, but according to another embodiment, location information of the MSC / SGSN 140 is extracted as location information of the mobile terminal 200. Can be. In this case, the location information of the mobile terminal 200 has a large error range corresponding to the management range of the MSC / SGSN 140, but the positioning process becomes very concise.

In step S360, the location information of the mobile terminal is provided to the home cellular system. The home cellular system may provide location information of the mobile terminal to the mobile terminal 200 or other device, and the user may be provided with location information in a map format, a coordinate format, or an address format.

According to another embodiment, the GMLC 110 may directly provide location information of the mobile terminal to the mobile terminal 200 or other device.

4 is a block diagram of a location information providing apparatus 400 according to an embodiment of the present invention.

4 is a device for providing location information of a mobile terminal 200 inbound roamed from a home cellular system to a visited cellular system.

Referring to FIG. 4, the location information providing apparatus 400 includes a location information providing request receiver 410, an exchange station identifier request transmitter 420, an exchange station identifier receiving unit 430, a location information extracting unit 440, and a location information generator. The bride 470 may be included.

The location information providing request receiving unit 410 receives a first location information providing request from a home cellular system. The first location information providing request includes an identifier of the mobile terminal 200 and an identifier of the GLR 130 that stores the identifier of the MSC / SGSN 140 where the mobile terminal 200 is located. A description of the first location information providing request is as described above with reference to FIG. 3.

The exchange identifier identifier originator 420 forwards the second location information provision request to the GLR 130.

The second location information providing request includes an identifier of the mobile terminal 200. A description of the second location information providing request is as described above with reference to FIG. 3.

The switching center identifier receiving unit 430 receives an identifier of the MSC / SGSN 140 where the mobile terminal 200 is located from the GLR 130.

The location information extractor 440 extracts location information of the mobile terminal 200 using the identifier of the MSC / SGSN 140.

According to the embodiment of FIG. 4, the location information extractor 440 may include a location information providing request sender 440 and a location information receiver 460.

The location information providing request sender 440 transmits a third location information providing request to the MSC / SGSN 140. The third location information providing request includes an identifier of the mobile terminal 200.

Upon receiving the third location information providing request, the MSC / SGSN 140 extracts location information of the mobile terminal 200 using a network method, a terminal method, or a hybrid method.

The location information receiver 460 receives location information of the mobile terminal from the MSC / SGSN 140.

According to the embodiment of FIG. 4, the MSC / SGSN 140 extracts the location information of the mobile terminal 200, but according to another embodiment, the location information of the MSC / SGSN 140 is the location information of the mobile terminal 200. Can be extracted. In this case, the location information of the mobile terminal 200 has a large error range corresponding to the management range of the MSC / SGSN 140, but the positioning process is simplified.

The location information transmitter 470 may transmit the extracted location information of the mobile terminal 200 to the home cellular system, the mobile terminal 200, or another device.

Hereinafter, a method and apparatus for providing location information of a mobile terminal 500 outbound roaming from the first communication network 100 to the second communication network 101 will be described.

5 is a call processing diagram of a method for providing location information according to another embodiment of the present invention.

In operation S510, a request for providing first location information is transmitted from the mobile terminal 500 to the GMLC 110 of the first communication network 100.

The first location information providing request includes an identifier of the mobile terminal 500.

According to an embodiment, the first location information providing request may be delivered from a web site or another device.

A server in charge of charging, authentication, and positioning commands may mediate communication between the mobile terminal 500 and the GMLC 110.

In step S520, the GMLC 110 transmits a request for providing second location information to the HLR 120.

The second location information providing request includes an identifier of the mobile terminal 500.

The HLR 120 stores the identifier of the GLR 130 that manages the identifier of the MSC / SGSN 180 where the outbound roaming mobile terminal 500 is located. The identifier information of the GLR 130 that manages the identifier of the MSC / SGSN 180 where the mobile terminal 500 is located is determined when the mobile terminal 500 roams and is stored in the HLR 120.

The MSC / SGSN 180 in which the mobile terminal 500 is located refers to the MSC / SGSN 180 that is included in the second communication network 101 and manages mobility of the outbound roaming mobile terminal 500.

In step S525, the identifier of the GLR 130 that manages the identifier of the MSC / SGSN 180 in which the mobile terminal 500 is located is transferred from the HLR 120 to the GMLC 110.

In step S530, the third location information providing request is transmitted from the GMLC 110 to the GLR 130 corresponding to the identifier of the GLR 130. The third location information providing request includes an identifier of the mobile terminal 500.

In step S535, the GLR 130 delivers the identifier of the MSC / SGSN 180 managing the mobile terminal 500 to the GMLC 110.

The MSC / SGSN 180 identifier information that manages the mobile terminal 500 may be determined from the second communication network 101 periodically or in real time when the mobile terminal 500 is roaming registered and when there is a change due to movement. It is delivered to the GLR 130 of the communication network 100. The GLR 130 stores this information and provides MSC / SGSN 180 identifier information for managing the mobile terminal 500 according to the request for providing the third location information.

In operation S540, the GMLC 110 of the first communication network 100 transmits a request for providing fourth location information to the GMLC 160 of the second communication network 101.

The fourth location information providing request includes an identifier of the mobile terminal 500 and an identifier of the MSC / SGSN 180 where the mobile terminal 500 is located.

As described above, the communication between the two GMLCs 110 and 160 may be performed using the RLP through the PGs 150 and 190.

In step S550, the GMLC 160 of the second communication network 101 transmits a request for providing fifth location information to the MSC / SGSN 180 corresponding to the identifier of the MSC / SGSN 180 where the received mobile terminal 500 is located. do.

The fifth location information providing request includes an identifier of the mobile terminal 500.

In step S560, the MSC / SGSN 180 extracts location information of the mobile terminal. The location information extraction process of the mobile terminal 500 may be the process described above in the description of step S260 with reference to FIG. 2. That is, location information of the mobile terminal 500 is extracted by a network method, a terminal method, or a hybrid method. When receiving a request for providing location information, the location may be performed, or the location may be periodically performed, and when receiving a request for providing location information, location information may be provided according to previously-located information.

According to another embodiment, the MSC / SGSN 180 or the GMLC 110 may extract the location information of the MSC / SGSN 180 as the location information of the mobile terminal 500. In this case, the error range of the location information of the mobile terminal 500 is widened, but the positioning process is simplified.

The location information of the mobile terminal 500 may be provided in a manner such as coordinate information and an address.

In step S570, the MSC / SGSN 180 transmits the location information of the mobile terminal 500 to the GMLC 160 of the second communication network 101.

In step S580, the GMLC 160 of the second communication network 101 transmits the location information received from the MSC / SGSN 180 of the mobile terminal 500 to the GMLC 110 of the first communication network 100.

In step S590, the GMLC 110 transmits the location information of the mobile terminal 500 to the mobile terminal 500. Accordingly, the user may be provided with location information of the mobile terminal 500 in the form of a map, a coordinate method, or an address.

According to another exemplary embodiment, the GMLC 110 may provide location information of the mobile terminal 500 to a website or another device.

6 is a flowchart illustrating a process of providing location information according to another embodiment of the present invention.

FIG. 6 is a diagram for describing a process of providing location information of a mobile terminal 500 outbound roamed from the first communication network 100 to the second communication network 101 as shown in FIG. 5.

The process of FIG. 6 may be performed, for example, in the GMLC 110.

Hereinafter, it is assumed that the process of FIG. 6 is performed in the GMLC 100.

In step S610, the GMLC 110 receives a request for providing first location information.

The request for providing the first location information may be received from the mobile terminal 500, a website, or another device.

The first location information providing request includes an identifier of the mobile terminal 500.

In step S620, the GMLC 120 transmits a second location information providing request to the HLR 120. The second location information providing request includes an identifier of the mobile terminal 500.

The HLR 120 stores the identifier of the GLR 130 that manages the identifier of the MSC / SGSN 180 where the outbound roaming mobile terminal 500 is located. The identifier information of the GLR 130 that manages the identifier of the MSC / SGSN 180 where the mobile terminal 500 is located is determined when the mobile terminal 500 roams and is stored in the HLR 120.

The MSC / SGSN 180 in which the mobile terminal 500 is located refers to the MSC / SGSN 180 that is included in the second communication network 101 and manages mobility of the outbound roaming mobile terminal 500.

In step S630, the GMLC 110 receives an identifier of the GLR 130 managing the identifier of the MSC / SGSN 180 where the mobile terminal 500 is located from the HLR 120.

In step S640, the GMLC 110 transmits a third location information providing request to the GLR 130 corresponding to the identifier of the GLR 130. The third location information providing request includes an identifier of the mobile terminal 500.

In step S650 GMLC 110 receives the identifier of the MSC / SGSN 180 that manages the mobile terminal 500 from the GLR (130).

The MSC / SGSN 180 identifier information that manages the mobile terminal 500 may be determined from the second communication network 101 periodically or in real time when the mobile terminal 500 is roaming registered and when there is a change due to movement. It is delivered to the GLR 130 of the communication network 100. The GLR 130 stores this information and provides MSC / SGSN 180 identifier information for managing the mobile terminal 500 according to the request for providing the third location information.

In step S660, the GMLC 110 transmits a request for providing fourth location information to the second communication network 101. For example, the GMLC 110 may transmit a request for providing fourth location information to the GMLC 160 of the second communication network 101.

The fourth location information providing request includes an identifier of the mobile terminal 500 and an identifier of the MSC / SGSN 180 where the mobile terminal 500 is located.

As described above, the communication between the two GMLCs 110 and 160 may be performed using the RLP through the PGs 150 and 190.

The second communication network 101 that receives the request for providing the fourth location information extracts the location information of the mobile terminal 500 through a process such as S550 to S570 of FIG. 5. The extracted location information of the mobile terminal 500 may be in a coordinate format or an address format.

In step S670, the GMLC 110 receives location information of the mobile terminal 500 from the second communication network 101.

According to the embodiment of FIG. 6, the MSC / SGSN 180 extracts the location information in steps S660 to S670, but according to another embodiment, the location information of the MSC / SGSN 180 is extracted as the location information of the mobile terminal 500. Can be. In this case, the location information of the mobile terminal 500 becomes a large error information, but the positioning process is concise.

In operation S680, the GMLC 110 may provide the location information of the mobile terminal 500 to the mobile terminal 500, a website, or another device, and the user may receive the location information in a map format, a coordinate method, or an address. have.

7 is a block diagram of a location information providing apparatus 700 according to another embodiment of the present invention.

FIG. 7 is a diagram for describing an apparatus for providing location information of a mobile terminal 500 outbound roaming from the first communication network 100 to the second communication network 101 as shown in FIG. 5 or FIG. 6.

Referring to FIG. 7, the apparatus 700 for providing location information according to another embodiment of the present invention may provide a location information providing request receiver 710, a GLR identifier request transmitter 720, a GLR identifier receiver 730, and an exchange station identifier request. It may include a transmitter 740, an exchange station identifier receiver 750, a location information extractor 760 and a location information transmitter 790.

The location information providing request receiving unit 710 receives the first location information providing request from the mobile terminal 500, a web site, or another device.

The first location information providing request includes an identifier of the mobile terminal 500.

The GLR identifier request sender 720 transmits a request for providing second location information to the HLR 120.

The second location information providing request includes an identifier of the mobile terminal 500.

The HLR 120 stores the identifier of the GLR 130 that manages the identifier of the MSC / SGSN 180 where the outbound roaming mobile terminal 500 is located. The identifier information of the GLR 130 that manages the identifier of the MSC / SGSN 180 where the mobile terminal 500 is located is determined when the mobile terminal 500 roams and is stored in the HLR 120.

The MSC / SGSN 180 in which the mobile terminal 500 is located refers to the MSC / SGSN 180 that is included in the second communication network 101 and manages mobility of the outbound roaming mobile terminal 500.

The GLR identifier receiver 730 receives an identifier of the GLR 130 that manages the identifier of the MSC / SGSN 180 where the mobile terminal 500 is located from the HLR 120.

The switching center identifier request sender 740 transmits the third location information providing request to the GLR 130 corresponding to the identifier of the GLR 130. The third location information providing request includes an identifier of the mobile terminal 500.

The switching center identifier receiving unit 750 receives an identifier of the MSC / SGSN 180 that manages the mobile terminal 500 from the GLR 130.

The MSC / SGSN 180 identifier information that manages the mobile terminal 500 may be determined from the second communication network 101 periodically or in real time when the mobile terminal 500 is roaming registered and when there is a change due to movement. It is delivered to the GLR 130 of the communication network 100. The GLR 130 stores this information and provides the MSC / SGSN 180 identifier information for managing the mobile terminal 500 according to the request for providing the third location information.

The location information extractor 760 extracts location information of the mobile terminal 500.

According to the embodiment of FIG. 7, the location information extractor 760 may include a location information providing request sender 770 and a location information receiver 780.

The location information providing request transmitter 770 transmits a fourth location information providing request to the second communication network 101. For example, the GMLC 110 may transmit a request for providing fourth location information to the GMLC 160 of the second communication network 101.

The fourth location information providing request includes an identifier of the mobile terminal 500 and an identifier of the MSC / SGSN 180 where the mobile terminal 500 is located.

As described above, the communication between the two GMLCs 110 and 160 may be performed using the RLP through the PGs 150 and 190.

The second communication network 101 that receives the request for providing the fourth location information extracts the location information of the mobile terminal 500 through a process such as S550 to S570 of FIG. 5. The extracted location information of the mobile terminal 500 may be in a coordinate format or an address format.

The location information receiver 780 receives location information of the mobile terminal 500 from the second communication network 101.

According to the embodiment of FIG. 7, the MSC / SGSN 180 extracts the location information. According to another embodiment, the location information extractor 760 uses the location information of the MSC / SGSN 180 to locate the mobile terminal 500. It can be extracted as information. In this case, the location information of the mobile terminal 500 becomes a large error information, but the positioning process is concise.

The location information transmitter 790 provides location information of the mobile terminal 500 to the mobile terminal 500, a website, or other device, and the user may receive the location information in a map format, a coordinate method, or an address. have.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, "includes." Or "have." And the like are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and that one or more other features or numbers, step, action, component, part, or It should be understood that they do not preclude the presence or possibility of adding these in advance.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

An embodiment of the present invention may include a computer readable medium including program instructions for performing various computer-implemented operations. The computer readable medium may include program instructions, local data files, local data structures, or the like, alone or in combination. The media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts.

In addition, the components shown in FIG. 4 or 7 do not necessarily have a hardware configuration, and some components may be implemented in the form of an application program that performs the same or similar functions. In addition, each component may be combined or separated within the scope of the invention.

So far I looked at the center of the embodiment for the present invention. Many embodiments other than the above-described embodiments are within the claims of the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. The disclosed embodiments should, therefore, be considered in an illustrative rather than a restrictive sense. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

1 is a network diagram of a system for providing location information according to an embodiment of the present invention.

2 is a call processing diagram of a method for providing location information according to an embodiment of the present invention.

3 is a flowchart illustrating a process of providing location information according to an embodiment of the present invention.

4 is a block diagram of a location information providing apparatus 400 according to an embodiment of the present invention.

5 is a call processing diagram of a method for providing location information according to another embodiment of the present invention.

6 is a flowchart illustrating a process of providing location information according to another embodiment of the present invention.

7 is a block diagram of a location information providing apparatus 700 according to another embodiment of the present invention.

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

100: first network

101: second network

110: GMLC (Gateway Mobile Location Center) of the first communication network 100

120: HLR (Home Location Register) of the first communication network 100

130: GLR (Gateway Location Register) of the first communication network 100

140: MSC (Mobile switching center) // SGSN (Packet Switching Support Node) of the first communication network (100)

150: PG (positioning gateway) of the first communication network 100

160: GMLC of the second communication network 101

170: HLR of the second communication network 101

180: MSC / SGSN of the second communication network 101

190: PG of the second communication network 101

Claims (12)

An apparatus for providing location information of a roaming mobile terminal, A location information providing request receiving unit receiving a first location information providing request including an identifier of a mobile terminal and a gateway location register (GLR) identifier from a home cellular system of the mobile terminal; An exchange station identifier request sender which forwards a second location information providing request including an identifier of the mobile terminal to a gateway location register corresponding to the gateway location register identifier; An exchange station identifier receiving unit which receives, from the gateway location register, an identifier of a mobile switching station or a packet switching support node where the mobile terminal is located; And And a location information extraction unit for extracting location information of the mobile terminal by using an identifier of the mobile switching center or a packet switching support node. The method of claim 1, The location information extraction unit, A location information providing request sender which forwards a third location information providing request including an identifier of the mobile terminal to a mobile switching center or a packet switching support node corresponding to the identifier of the mobile switching center or a packet switching support node; And And a location information receiver configured to receive location information of the mobile terminal from the mobile switching center or a packet switched support node that has received the third location information providing request. The method of claim 1, The location information extraction unit, And location information providing apparatus for extracting location information of the mobile switching center or the packet switching support node corresponding to the identifier of the mobile switching center or the packet switching support node as the location information of the mobile terminal. In the location information providing method of a roaming mobile terminal performed by a location information providing apparatus, Receiving a first location information providing request including an identifier of the mobile terminal and a gateway location register identifier from a home cellular system of the mobile terminal;  Transmitting a second location information providing request including an identifier of the mobile terminal to a gateway location register corresponding to the gateway location register identifier;  Receiving an identifier of a mobile switching center or a packet switched support node where the mobile terminal is located from the gateway location register; And Extracting location information of the mobile terminal using an identifier of the mobile switching center or a packet switched support node. The method of claim 4, wherein Extracting location information of the mobile terminal using an identifier of the mobile switching center or a packet switched support node, Transmitting a third location information providing request including an identifier of the mobile terminal to a mobile switching center or a packet switched support node corresponding to the identifier of the mobile switching center or a packet switched support node; And Receiving location information of the mobile terminal from the mobile switching center or a packet switched support node that has received the third location information providing request. The method of claim 4, wherein Extracting location information of the mobile terminal using an identifier of the mobile switching center or a packet switched support node, Extracting location information of a mobile switching center or a packet switching support node corresponding to an identifier of the mobile switching center or a packet switching support node as location information of the mobile terminal. An apparatus for providing location information of a roaming mobile terminal, A location information providing request receiving unit receiving a first location information providing request including an identifier of the mobile terminal; A GLR identifier request transmitter for transmitting a second location information providing request including an identifier of the mobile terminal to a home location register; A GLR identifier receiver for receiving a gateway location register identifier corresponding to the identifier of the mobile terminal from the home location register; An exchange station identifier request sender which transmits a third location information providing request including an identifier of the mobile terminal to a gateway location register corresponding to the gateway location register identifier; An exchange station identifier receiving unit which receives an identifier of a mobile switching center or a packet switching support node managing the mobile terminal from the gateway location register; And And a location information extraction unit for extracting location information of the mobile terminal by using an identifier of the mobile switching center or a packet switching support node. The method of claim 7, wherein The location information extraction unit, A location information providing request sender which forwards a fourth location information providing request including an identifier of the mobile terminal and an identifier of the mobile switching center or a packet switched support node to a visited cellular system managing the mobile terminal; And And a location information receiver configured to receive location information of the mobile terminal from a visited cellular system managing the mobile terminal. The method of claim 7, wherein The location information extraction unit, And location information providing apparatus for extracting location information of the mobile switching center or the packet switching support node corresponding to the identifier of the mobile switching center or the packet switching support node as the location information of the mobile terminal. In the location information providing method of a roaming mobile terminal performed in the location information providing apparatus, Receiving a request for providing first location information including an identifier of the mobile terminal; Delivering a second location information providing request including an identifier of the mobile terminal to a home location register; Receiving from the home location register a gateway location register identifier corresponding to the identifier of the mobile terminal; Forwarding a third location information providing request including an identifier of the mobile terminal to a gateway location register corresponding to the gateway location register identifier; Receiving an identifier of a mobile switching center or a packet switched support node managing the mobile terminal from the gateway location register; And Extracting location information of the mobile terminal using an identifier of the mobile switching center or a packet switched support node. The method of claim 10, Extracting location information of the mobile terminal using an identifier of the mobile switching center or a packet switched support node, Forwarding a fourth location information providing request including an identifier of the mobile terminal and an identifier of the mobile switching center or packet switched support node to a visited cellular system managing the mobile terminal; And Receiving location information of the mobile terminal from a visited cellular system managing the mobile terminal. The method of claim 10, Extracting location information of the mobile terminal using an identifier of the mobile switching center or a packet switched support node, Extracting location information of a mobile switching center or a packet switching support node corresponding to an identifier of the mobile switching center or a packet switching support node as location information of the mobile terminal.

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