KR100932243B1 - Positioning method of mobile communication terminal - Google Patents

Abstract

The present invention relates to a positioning method of a mobile communication terminal, comprising the steps of: (a) obtaining a header information of the target terminal by communicating with a mobile communication target terminal; (b) requesting location information from a location-based service platform with the obtained header information; (c) transmitting, by the service platform, the location information request signal to a base station DB server in which base station information of the target terminal is stored; (d) comparing the base station data of the target terminal with the header information in the base station DB server to generate location information of the corresponding terminal.

By providing the present invention, it is possible to position the terminal located in the visited network without complex interworking between the positioning system of the home network or visited network, and the process is also easy, so that the positioning time can be much shorter, and the network load can be reduced. Rather, there is no need to perform unnecessary communication, thereby lowering the location-based service cost.

LBSP, MPC, Header, Positioning, GISP

Description

Positioning method of mobile communication terminal {POSITIONING METHOD OF MOBILE}

The present invention relates to a positioning method of a mobile communication terminal, and more particularly, to a method capable of easily and accurately providing accurate location information of a mobile communication terminal abroad.

In the past, the mobile communication terminal was mainly used for a call, but recently, various additional functions such as text message transmission and large file transmission and reception are provided to the mobile communication terminal. Furthermore, various services are provided according to the location of the mobile communication terminal. Location-based services are provided.

Location Based Service (LBS) is a location information based system and service that utilizes mobile communication network such as mobile phone or PDA and IT technology. On the basis of this, not only product information but also traffic-related information and location tracking information are being applied throughout life.

For example, location-based services include traffic-related information such as driving convenience information, public transportation information path search and setting, and location tracking information includes location tracking, personal location information, and lost terminal tracking. In addition, the convenience information may include logistics, convenience services, telephone number services, local information, and the like, and the commerce information may provide services such as notification of desired products and location-based marketing / advertisement.

In addition, as the mobile communication terminal becomes lighter and shorter and the mobile communication network expands globally, mobile communication service users carry their mobile communication terminals while traveling and use calls and other supplementary services by using their mobile communication terminals. Want.

Under the environment of global mobile communication system, many users want to receive the above location-based services, and in some countries or mobile communication network areas (for example, Korea mobile communication network area such as SK Telecom or KTF, NTT DoCoMo, Sprint PCS, KDDI, Vodafone, etc.) , Gumi region, mobile communication network, etc.) has commercialized their own location information acquisition system using such a mobile communication terminal.

In order to provide a location based service, a process of determining a location of a mobile communication terminal must be preceded. That is, the location-based service is created based on geographical position information of the mobile communication terminal obtained during the location determination of the mobile communication terminal.

In order to obtain geographical location information of the mobile communication terminal, the mobile communication terminal must be provided with a location determination service regardless of the location of the mobile communication terminal. That is, regardless of whether the mobile communication terminal is in a home network area or a roaming area, that is, a visited network, a location service must be provided.

Here, the home network refers to a network in which a mobile communication service provider to which a mobile communication terminal is basically subscribed provides a mobile communication service, and the visited network refers to a service other than a mobile communication service company to which a mobile communication terminal is subscribed. As a providing network, a network in which a mobile communication terminal is currently located.

Methods of determining the location of a mobile communication terminal (hereinafter referred to as UE) in a mobile communication network are various, and are as follows.

First, the position of the mobile communication terminal (UE) is determined using information of a cell closest to the position of the mobile communication terminal (UE) or information of a cell managing the mobile communication terminal (UE). How to determine in units.

Second, the strength of the transmission and reception signal between the base station (node B) and the mobile communication terminal (UE), the time of arrival of the radio wave transmitted from the base station (node B) to the mobile communication terminal (UE) TOA ') or a time difference of arrival (hereinafter referred to as' TDOA') between a plurality of base stations (node B) and a mobile communication terminal (UE), and triangulates the TOA or TDOA.

A network-based location determination method for determining a location of a mobile communication terminal (UE) by applying to a survey method.

Third, a method of determining the position of a mobile communication terminal (UE) using a GPS (Global Positioning System, hereinafter referred to as 'GPS') developed by the US Department of Defense.

As such, location-based services are provided on a network-based or GPS-based basis. FIG. 1 is a diagram illustrating an LBS system according to the prior art.

As shown in FIG. 1, a general mobile communication network may be classified into a CDMA network and a WCDMA network. The mobile communication terminal 101 belonging to the CDMA network may be a CDMA network including a base transceiver station (BTS) 102. The mobile communication terminal 110 connected to the WCDMA network is connected to the WCDMA network through the Node B 112.

Referring to Figure 1 will be described a conventional location information providing process.

PDE (Position Determination Entity, 104) performs a positioning function of the GPS terminal, that is, the mobile communication terminal 101 supported by the GPS function through interworking with the Global Positioning Management System (GPMS) 108, N-MPC (N The Mobile Positioning Center (106) performs a CDMA-based location positioning function by referring to information about a subscriber recorded in the Home Location Register (HLR) 114.

Meanwhile, in the WCDMA network, the GMLC (Gateway Mobile Location Center) 116 also performs the positioning function of the mobile communication terminal 110 belonging to the WCDMA network on a cell basis with reference to the HLR 114.

The location information performed through the above process is transmitted to a location based service platform (LBSP) 126 included in a network providing location information through the S-MPC 120 and the location based service platform. 126 is a contents provider (CP) 128 to provide the location of the mobile communication terminal (101,110) belonging to the CDMA network or WCDMA network, at this time, the Geographic Information Service Platform (GISP) 124 Map information through) may be provided to the content provider 128 together.

As shown in FIG. 1, the conventional LBS system is divided into a cell-based (network-based) and a GPS method according to a positioning method, and is also divided into a CDMA network and a WCDMA network, and the system is distributed by a network and a positioning method. It is operating.

However, in providing a location-based service to a mobile communication terminal using the location determination methods as described above, the method and system for providing location information through a direct connection between the mobile communication terminal located in the visited network and the positioning system of the home network There is a situation that does not exist yet, in positioning, network positioning or GPS positioning has a disadvantage that the positioning method is complicated and the positioning failure rate is high.

In order to solve the above problems, it is possible to easily locate the terminal located in the visited network or the terminal connected to the roaming service, and provide high quality location-based services by performing fast and accurate positioning without performing paging function of the target terminal. In addition to lowering the cost of services.

A method for positioning a location-based service according to the present invention for solving the above problems includes the steps of: (a) obtaining a header information of the target terminal by communicating with a mobile communication target terminal; (b) requesting location information from a location-based service platform with the obtained header information; (c) transmitting, by the service platform, the location information request signal to a base station DB server in which base station information of the target terminal is stored; (d) comparing the base station data of the target terminal with the header information in the base station DB server to generate location information of the corresponding terminal.

In this case, step (a) is preferably performed through packet communication, and the header information is preferably header information of any one of HTTP, WIPI, and BREW.

Preferably, the header information may include a country code, a provider network code, and a cell ID value of the target terminal, and the map of the target terminal location corresponding to the generated location information is linked with a map server. The method may further include transmitting to the information service server.

As another embodiment according to the present invention, a positioning method of a mobile communication terminal includes the steps of: (a) obtaining a header information of the target terminal by communicating with a mobile communication target terminal; (b) requesting location information from a location-based service platform with the obtained header information; (c) determining whether a network is visited through the location information request signal; (d) if the location of the location request terminal is a visited network, transmitting the location information request signal to a visited network base station DB server storing base station information of the visited network; (e) generating location information of the corresponding terminal by comparing the header information with the base station data in the visited network base station DB server.

In addition, the step (a) is preferably made through packet communication, the header information preferably includes a country code, operator network code and the cell ID value of the target terminal.

Furthermore, preferably, the method may further include transmitting a map of the location of the target terminal corresponding to the generated location information to a location information service server in association with a map server, wherein the location information service server and the target terminal are provided. May be a TCP connection is established.

Meanwhile, the positioning system of the mobile communication terminal according to the present invention compares the header information of the target terminal with respect to the location information request including the header information of the target terminal, and generates the position information of the target terminal. It includes a base station DB server that stores the base station data.

When providing the positioning method of the mobile communication terminal according to the present invention, it is possible to locate the terminal located in the visited network without complicated interworking between the positioning system of the home network or the visited network, and the process is also easy to shorten the positioning time much more. There is an advantage.

Not only does not reduce the network load by performing the paging function of the conventional network positioning system, but also eliminates the need for unnecessary communication, thereby reducing the location-based service cost.

2 is a diagram illustrating a configuration of a positioning system of a wireless communication terminal according to the present invention.

As shown in FIG. 2, a service server 100 providing a location based service, a location based service platform (LBSP), a mobile location center (MPC), a map server ( 200 and the base station DB server 500.

Here, the service server 100 refers to a service server 100 that requests location information of a target terminal and provides a service with a response thereto in order to provide a service according to various locations. In addition, the location-based service platform (LBSP, 300) may be a kind of receiver in that the location tracking service is started by requesting the location information of the target terminal to the mobile location center (MPC, 400) and receiving a response thereto. .

The mobile location center (MPC, 400) requests the location information of the target terminal, receives the location information of the terminal whose location is calculated, caching, authentication of the terminal that can be provided with location-based services, and user profile. Manage.

In addition, the MPC 400 may receive not only GPS-based location information, but also base station information in a 2G / 3G network from a dual gateway mobile location center (DGMLC) (not shown). In this case, the DGMLC Is connected to a Mobile Switching Center (MSC) and a Home Location Resister (HLR) (not shown) in a 2G or 3G network to transmit base station information of the 2G and 3G networks to the MPC.

In addition, the MPC 400 transmits the location information request to the target terminal BS DB server 500 again, and compares the header information and the BS data of the target terminal included in the location request signal with the BS DB server 500. The location of the terminal is generated, and the generated data signal is provided to the service server 100 along with the map information through the Geographic Information Service Platform (GISP) (map server 200) through the MPC 400. Can be.

Hereinafter, a positioning method of a mobile communication terminal according to the present invention made through the above-described system will be described with a flowchart.

3 is a diagram illustrating a flow of a positioning method of a mobile communication terminal according to the present invention. In order to provide the location-based service, the service server 100 obtains header information through packet communication with the target terminal. (S10) That is, the request terminal (same as the target terminal) sends the location request to the service server 100. When the location information is requested through packet communication such as wireless Internet, the header information of the packet data together with the request signal can be obtained from the service server. The header information is header information such as HTTP, WIPI, BREW, etc., and has information including a country code, a corresponding service provider network code, and a cell ID.

Here, the packet [packet] of the packet communication is originally a term meaning a package, and is a compound word of a package meaning a package and a bucket meaning a chunk. The post office divides the cargo into appropriate chunks and adds a label to indicate the destination. That is, it refers to an aggregate that is handled and transmitted as a unit by the transmitting side and the receiving side in data transmission.

It can be applied to any kind of file, such as email or HTML documents. Each split packet is given a separate number, the destination's Internet address is recorded, and error check data is included.

Since the header information of the wireless Internet communication itself includes location information such as cell ID information of the target terminal, the location of the target terminal can be accurately and easily measured if it can be compared with the base station information.

Here, WIPI (Wireless Internet Platform for Interoperability) is a wireless Internet platform, and refers to basic software that functions as an operating system (OS) of a personal computer in a mobile phone terminal.

WIPI is a platform developed by Qualcomm for code division multiple access (CDMA) mobile communication. It can download, update, save and delete programs to mobile phones as well as desktop computers. It provides a convenient environment for real-time navigation, dialogue, and group games. Unlike Java-based platforms, users can download and write the software they want directly on their devices.It is a technology standard in the mobile content field that causes a lot of problems due to different platforms. Is a mobile program.

As described above, the present invention compares the cell ID and the base station information included in the header information of the mobile program for the wireless Internet to generate the location information of the target terminal, thereby enabling quick and accurate location measurement.

Meanwhile, the service server 100 transmits a location request including the header information obtained from the target terminal to the location-based service platform (S20), and the signal passes through the MPC 400 (S30). It is delivered to the DB server 500. The base station DB server 500 compares the cell ID and the like included in the header information with the base station data to generate the location information of the target terminal and transmits the location response result to the location based service platform 300 (S50). The LBSP 300 transmits the location information to the map server GISP 200, and the map information service platform responds to the location information to the service server 100 together with the map information of the corresponding area.

That is, the conventional positioning method has a long positioning time because it performs a paging function for positioning the target terminal, but when performing the positioning method according to the present invention, the base station DB server 500 Location information can be generated by passing it directly to the system, thereby significantly reducing the positioning time. In addition, since the terminal header information of the wireless communication Internet includes a country code, a carrier network code, a cell ID, and the like, there is an advantage of increasing positioning accuracy.

4 is a configuration diagram of a system for positioning a mobile communication terminal by dividing a home network and a visited network according to another embodiment of the present invention, and FIG. 5 is a flowchart of a positioning method when the target terminal is in a visited network. The illustrated figure.

Hereinafter, in order to explain the advantages of the system and method of the present invention will be described in comparison with the conventional system, it will be described by comparing the system and the method using the system together.

In addition, in describing the present invention, when it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Numbers (eg, first, second, etc.) used in the description of the present specification are merely identification symbols for sequentially distinguishing identical or similar entities.

Hereinafter, when the target terminal is located in a roaming visited network instead of a home network, which is originally registered, a conventional system and a method for receiving location information will be described. The positioning method according to this will be described in detail. The home network and the visited network are assumed to be roaming based on the 3G network.

4 is a block diagram of a system for providing location information through roaming according to an embodiment of the present invention. It is assumed that the home network and the visited network are roaming connections, and that voice, short message (SMS), and data roaming connections are established.

The target terminal 700 is a mobile communication terminal subscribed to a mobile communication service provided by a home network (for example, a mobile communication service such as KTF in Korea), and is currently visited (for example, an NTT DoCoMo network in Japan, etc.). )

Hereinafter, the description will be based on Secure User Plane Location (SUPL) that provides a location service through a user plane. SUPL is an efficient way of delivering location information needed to calculate the location of a mobile communication terminal.

In a conventional location information providing system, a SUPL network for providing a location based service includes a SUPL agent, a SLP (SUPL Location Platform), and a SET (SUPL Enabled Terminal). The SUPL agent represents a logical service access point using the actual measured location information. The SLP represents a SUPL service access point of a network portion that accesses network resources to obtain location information. SET is a device that can communicate with SUPL network using SUPL interface.

For example, a user terminal (UM) of UMTS, a mobile station (MS) of GSM,

The IS-95 can be either an MS or a laptop or PDA with built-in SET functionality. Alternatively, the present invention may be various mobile communication terminals connected through a wireless local area network (WLAN). This SET interworkes with the network via a user plane bearer to support definition procedures in SUPL.

In addition, the SLP in the home network is referred to as H-SLP (Home SLP), and the SLP in the visited network is referred to as V-SLP (Visited SLP). In this case, when the SUPL procedure is started in the network, the SLP to which the external client first connects is called a requesting SLP (R-SLP), which may or may not be the same as the H-SLP as a logical entity. The target terminal is referred to as a target SET.

The SLP, which is a conventional network component, has an SPC (SUPL Positioning Center), which is an entity that calculates an actual position, and functions other than calculating position information, such as roaming and resource management. It includes a SLC (SUPL Location Center). H-SLP includes H-SPC and H-SLC, and V-SLP includes V-SPC and V-SLC.

Therefore, in order to perform the function of the H-SLP between the H-SLC and H-SPC

Internal communication must be performed, and internal communication must be performed between the V-SLC and the V-SPC to perform the functions of the V-SLP.

The MSC 109 of the conventional home network and the SGSN / GGSN 528 are roamed with the UMTS network 202 of the visited network. The UMTS network 202 of the visited network is an asynchronous mobile communication network, and may be another asynchronous mobile communication network such as a WCDA network. The home positioning system 560 includes an H-SLP 562 or a roaming gateway 564 and is connected between the SGSN / GGSN 528 and the MPC 400 to calculate location information of the mobile communication terminal. .

The LBSP 300 is connected to an authentication gateway (eg, KTF's Juice Gateway), so that the location requesting terminal and / or the target terminal is location based when the location requesting terminal requests to provide location information according to the location based service. It handles authentication of whether or not you are subscribed to the service.

The visited network includes a visited positioning system 210 that includes a V-SLP 216, which is connected to the UMTS network 202 via a Visted GMLC 212.

Although the positioning of the target terminal is performed through the conventional system as described above, in the present invention, as shown in FIGS. 4 and 5, in the home network, the service terminal 100 provides a location-based service platform (LBSP, 300) of the target terminal. The location request signal including the header information is transmitted, and received from the mobile location center and transmitted to the base station DB server 500 to obtain the location information, and whether the visited network in the mobile location center (MPC, 400) In the case of the visited network, it transmits a location request signal to the visited network base station DB server 600, and compares the base station data stored in the visited network base station DB server 600 with the header information of the target terminal to easily generate the location information. It consists of a system capable of positioning.

Here, the visited network base station DB server 600 may be roamed and linked with the base station DB server of the home network, or may be an independent server storing the visited network base station data provided in the home network.

That is, an example of the flow of the location information providing method according to the present invention in the case of outbound roaming where the location requesting terminal and the target terminal are the same and the location requesting terminal is located in the visited network is shown in FIG. 5.

As shown in FIG. 5, the location requesting terminal located in the visited network requests its own location information through packet communication to the service server 100 of the home network, and obtains header information of the target terminal. The server 100 requests the location of the target terminal 700 to the LBSP 300 and the LBSP 300 requests the location of the target terminal to the MPC 400.

In this case, the communication between the service server 100 and the requesting terminal is performed in a wireless Internet environment through packet communication to obtain HTTP header information of the requesting terminal. It includes parameters such as asynchronous network information indicating that, the mobile station code (MCC), the network information (Mobile Network Code, MNC) registered with the location request terminal, and the base station information (cell ID).

The area information and network information recorded in the USIM card are information related to the home network in which the location requesting terminal is registered as a subscriber. In addition to the HTTP header, it will be apparent to those skilled in the art that the same content is applicable to the use of the WIPI and BREW billcom3 headers.

Therefore, the LBSP 120 checks the HTTP header and compares the location information and network information recorded in the USIM card with the current location network information, and if it is the same, determines that the location requesting terminal is currently located in the home network. The terminal is determined to be located in the visited network, not the home network (S250).

If it is determined that the visited network, the MPC 400 directly transmits the location request signal to the base station DB server 600 of the visited network, and the visited network base station DB server 600 includes HTTP included in the base station data and the location request signal. The location information of the target terminal is generated in comparison with the cell ID of the header information, and the information is transmitted to the location information service server together with the local map information of the target terminal through the map server 200 (S700).

That is, in the prior art, it was confirmed whether or not the visited network, and the network positioning or GPS positioning including the paging, in the present invention, the positioning time is significantly reduced in that it performs the positioning of the target terminal directly in conjunction with the base station DB server And it has the advantage of accurately positioning the location information required for location-based services.

In the above, the preferred embodiments of the present invention have been described, but the present invention is not limited to the above-described embodiments and drawings, and the general knowledge in the technical field to which the present invention belongs without departing from the technical spirit of the present invention. Since various changes and modifications may be made by those having the scope of the present invention, the scope of the present invention should be determined by the appended claims and their equivalents.

1 illustrates an LBS system according to the prior art;

2 is a diagram illustrating a configuration of a positioning system of a wireless communication terminal according to the present invention;

3 is a view illustrating a flow of a positioning method of a mobile communication terminal according to the present invention;

4 is a configuration diagram of a system for positioning a mobile communication terminal by dividing a home network and a visited network according to another embodiment of the present invention;

5 is a flowchart illustrating a positioning method when the target terminal is in the visited network.

Claims (10)

(a) a location information service server communicating with a mobile communication target terminal to obtain header information of the target terminal; (b) requesting location information from a location-based service platform with the obtained header information; (c) transmitting, by the service platform, the location information request signal to a base station DB server in which base station information of the target terminal is stored; (d) comparing the base station data of the target terminal with the header information in the base station DB server and generating location information of the corresponding terminal. The method of claim 1, Step (a) is a positioning method of a mobile communication terminal, characterized in that via the packet communication. The method of claim 1, The header information is a positioning method of a mobile communication terminal, characterized in that the header information of any one of HTTP, WIPI and BREW. The method according to claim 1 or 2, The header information includes a country code, a provider network code, and a cell ID value of the target terminal. The method according to claim 1 or 2, And positioning the map of the target terminal location corresponding to the generated location information to a location information service server in association with a map server. (a) a location information service server communicating with a mobile communication target terminal to obtain header information of the target terminal; (b) requesting location information from a location-based service platform with the obtained header information; (c) determining whether a network is visited through the location information request signal; (d) if the location of the target terminal is a visited network, transmitting the location information request signal to a visited network base station DB server storing base station information of the visited network; (e) a method of positioning a mobile communication terminal comprising comparing location information of the base station with header information in the visited network base station DB server and generating location information of the corresponding terminal. The method of claim 6, Step (a) is a positioning method of a mobile communication terminal, characterized in that via the packet communication. The method of claim 6, The header information includes a country code, a provider network code, and a cell ID value of the target terminal. The method of claim 6, And positioning the map of the target terminal location corresponding to the generated location information to a location information service server in association with a map server. The method of claim 6, The location information service server and the target terminal positioning method of the mobile communication terminal, characterized in that the TCP connection is established.

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