KR100711318B1 - Method for measuring location of mobile phone having gps module within in a portable communication network - Google Patents

Abstract

The present invention relates to a positioning method of a GPS support terminal in a mobile communication network. That is, in the present invention, when the LBS system, which is the terminal location information providing system of the mobile communication network, searches for the GPS-supported terminal, the GPS-supported terminal is located in a building, the basement, a shadow area, etc., where the GPS signal cannot receive the GPS signal. In case of failure, the LBS system does not respond to the location server and attempts to locate the terminal by using the direct exchange to notify the location server of the location inquiry result. Make inquiry possible.

GPS, Cell-ID, Positioning, LBS

Description

METHOD FOR MEASURING LOCATION OF MOBILE PHONE HAVING GPS MODULE WITHIN IN A PORTABLE COMMUNICATION NETWORK}

1 is a configuration diagram of an LBS system in a mobile communication network to which an embodiment of the present invention is applied;

2 is a flowchart illustrating a location positioning process of a GPS supporting terminal in an LBS system according to an exemplary embodiment of the present invention.

<Brief description of the major symbols in the drawings>

100: MS 102: BTS

104: BSC 106: MSC

108: PDE 110: MPC

112: LBSP 114: CP

116: HLR

The present invention relates to a positioning method of a GPS (Global Positioning System) supporting terminal in a mobile communication network. In particular, when a positioning failure for a GPS supporting terminal is performed, the LBS (Location Based Service) system performs its own Cell-ID positioning. The present invention relates to a positioning method of a GPS supporting terminal in a mobile communication network which enables a quick lookup of a terminal even when the GPS positioning fails.

In recent years, mobile communication terminals have been expanded to multimedia terminals such as digital camera shooting and MP3 music files by being equipped with a built-in camera or memory as well as a simple voice call function. In addition to providing a communication service for voice communication, the various services are also being developed for creating new accommodations using multimedia functions newly installed in mobile terminals.

As one of these additional services, a method of providing mobile terminal location information has recently been developed to identify the location of an accidental accident isolated by fire, distress, building collapse, etc., or to allow an individual to determine the location of the other terminal user according to the permission of the other party. Doing.

On the other hand, location lookup in the above LBS service is provided by the GPS method and the Cell-ID method. First of all, the GPS method calculates the location of the subscriber by using the GPS information transmitted from the terminal by the LBS system (MPC, PDE) when the location inquiry about the terminal on which the GPS module is mounted, and then transmits to the location server (LBSP) . In addition, in the case of the Cell-ID method, for a terminal without a GPS module, the home location register (HLR) acquires the cell information of the base station where the subscriber is located through the exchange (MSC), and sends it to the location server (LBSP). Send it for use.

In this case, the GPS method provides high accuracy because it uses the GPS information of the satellite, but fails in the building, the basement, and the shadow area where the GPS signal cannot be received. In this case, the current location failure response from the LBS system to the location server, the location server receives the failure response to retry the cell-ID positioning through the home location register and the exchange, the GPS and Cell-ID method By performing the positioning in parallel, there was a problem that the total positioning time is required as the time required for both methods.

Accordingly, an object of the present invention is to perform a cell-ID positioning by the LBS system itself when the positioning of the GPS support terminal fails, so that even when the GPS positioning fails, the LBS in the mobile communication network can be quickly searched. The present invention provides a method for positioning a GPS support terminal.

The present invention for achieving the above object is a location server (LBSP) attempting to look up the location of the terminal at the request of the subscriber or CP, MPC for delivering the location information of the terminal to the LBSP, and the GPS information transmitted by the terminal A positioning method of a GPS supporting terminal in an LBS system in a mobile communication network including a PDE and an MSC for calculating latitude / longitude information, the method comprising: (a) LBSP requesting a location inquiry with an MPC when requesting a location measurement for a specific terminal in a mobile communication network; Performing the first step, (b) the MPC processing the GPS position positioning to the terminal for which the position measurement is requested through the PDE, and (c) when the GPS positioning fails for the terminal, the MPC sends to the MS- Cell-; Processing an ID method of positioning, and (d) transmitting the base station Cell information for the terminal to the LBSP in the MPC to complete the location lookup.

In addition, the present invention provides a latitude / longitude information through the location server (LBSP) attempting to look up the location of the terminal at the request of the subscriber or CP, the MPC for delivering the location information of the terminal to the LBSP, and the GPS information transmitted by the terminal A method of measuring a location of a GPS supporting terminal in an LBS system in a mobile communication network including a PDE and an MSC to be calculated, the method comprising: (a ') requesting a location inquiry by the LBSP in a MPC when requesting a location measurement for a specific terminal in a mobile communication network; (b ') the MPC collecting MSC information to which the terminal belongs from the HLR, (c') the MPC transmitting a GPOSREQ to the PDE including the MSC ID of the terminal in the database, ( d ') performing a plurality of SMDPP procedures to the terminal through the corresponding MSC and returning the result to the MPC when GPS positioning fails, (e') the MPC transmitting a page request to the MSC; (f ') the MSC paging procedure And transmitting the cell information in which the subscriber is located to the MPC after performing (g '), and performing the response to the location inquiry request to the LBSP.

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of the preferred embodiment according to the present invention.

1 illustrates an LBS system configuration of a mobile communication network to which an embodiment of the present invention is applied. Referring to Figure 1 below,

The mobile station (MS) 100 is a user interface device, which is equipped with a GPS module and provides its GPS location information under the control of the MPC 110 when collecting location information in the LBS system.

The base transceiver station (BTS) 102 is a device configured as a wireless transceiver and transmits / receives voice calls and packet data through a wireless link with a mobile communication terminal 100 in a radio access network (RAN).

The base station controller (BSC) 104 manages a plurality of BTSs 102 and is responsible for radio channel setup, frequency hopping, and handover processing. The Mobile Switching Center (MSC) 106 is responsible for mobility management, location registration / management, authentication, handover, roaming, etc. of the MS 100.

The location server (LBSP) 112 attempts location lookup at the request of the subscriber or content provider (CP) 114. The mobile positioning center (MPC) 110 transmits the location information to the LBSP 112. Position Determination Entity (PDE) 108 calculates latitude / longitude information from the GPS information transmitted by the terminal.

In the above LBS system, when the location measurement request for a specific terminal in the mobile communication network, the LBSP 112 first performs a location inquiry request to the MPC 110, and the MPC 110 requests the location measurement through the PDE 108. The GPS positioning by the terminal. In this case, if the GPS positioning for the terminal fails, the MPC 110 processes the cell-ID method of positioning to the MSC 106 and transmits the base station cell information for the terminal to the LBSP 112 in the MPC 106. To complete the position lookup.

2 is a flowchart illustrating a fast cellular positioning operation control flow when GPS positioning fails in an LBS system of a mobile communication network according to an exemplary embodiment of the present invention. Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

First, when the location measurement request for a specific terminal in the mobile communication network, the LBSP 112 requests a location request to the MPC 110 (Location Request) (S200).

Then, the MPC 110 receiving the location inquiry request of a specific terminal from the LBSP 112 receives an SMS REQ to obtain a MSC information registered with the subscriber to the Home Location Register (HLR) 116. In step S202, the HLR 116 transmits the subscriber's SMS_Address information to the MPC 110 (S204).

Subsequently, the MPC 110 transmits the GPOSREQ to the PDE 108 including the MSC ID corresponding to the SMS_Address of the specific terminal requested for location in the database (S206).

Then, the PDE 108 collects the location information of the terminal by performing a plurality of SMDPP procedures with the terminal through the MSC 106 to which the terminal belongs (S208).

In this case, if the GPS location fails because the terminal is located in a building, underground, or shaded area that cannot receive the GPS signal, the PDE 108 notifies the MPC 110 of the GPS location failure (S210).

Then, the MPC 110 transmits a page request to the MSC 106 to which the terminal belongs (S212), and after receiving the page request, the MSC 106 performs a paging procedure with the corresponding terminal requested for location inquiry. In operation S214, cell information in which the user terminal is located is transmitted to the MPC 110.

Accordingly, the MPC 110 receives the cell information of the terminal requested for location inquiry through the MSC 106 and transmits the location inquiry information of the corresponding terminal to the LBSP 112 to the location inquiry request from the LBSP 112. It will respond (S216).

As described above, in the present invention, when the LBS system, which is a terminal location information providing system of a mobile communication network, searches for a GPS supporting terminal, the GPS supporting terminal is located in a building, a basement, a shadow area, etc., where the GPS signal cannot be received. If the location fails, the LBS system does not respond to the location server and attempts to locate the mobile station's Cell-ID by the direct exchange to notify the location server of the location query result, so that the device can be quickly contacted even when the GPS location fails. Enable location lookup.

Meanwhile, in the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the invention should be determined by the claims rather than by the described embodiments.

As described above, in the present invention, in the LBS system, which is a terminal location information providing system of a mobile communication network, when a position is searched for a GPS supporting terminal, the GPS supporting terminal is located in a building, basement, shadow area, etc. If the location positioning fails, the LBS system does not respond to the location server, but attempts to locate the cell-ID of the mobile station with the direct exchange to notify the location server of the result of the location inquiry. There is an advantage to enable the position lookup for the terminal.

Claims (3)

A location server (LBSP) that attempts to look up the location of the terminal at the request of a subscriber or CP, an MPC that delivers the location information of the terminal to the LBSP, a PDE that calculates latitude / longitude information from the GPS information transmitted by the terminal; A positioning method of a GPS supporting terminal in an LBS system in a mobile communication network including an MSC, (a) when the LBSP performs a location lookup request for the first time by a MPC when requesting a location measurement for a specific terminal in a mobile communication network, (b) the MPC processing GPS location positioning to the terminal for requesting location through the PDE; (c) the MPC processing a cell-ID location with the MSC when the GPS location with respect to the terminal fails; (d) completing the location lookup by transmitting base station cell information for the terminal to the LBSP in the MPC; Positioning method of a GPS support terminal comprising a. A location server (LBSP) that attempts to look up the location of the terminal at the request of a subscriber or CP, an MPC that delivers the location information of the terminal to the LBSP, a PDE that calculates latitude / longitude information from the GPS information transmitted by the terminal; A method for measuring a location of a GPS supporting terminal in an LBS system in a mobile communication network including an MSC, (a ') requesting the LBSP to look up the location by MPC when requesting location measurement for a specific terminal in a mobile communication network; (b ') collecting the MSC information to which the corresponding UE belongs from the HLR; (c ') the MPC transmitting a GPOSREQ request to a PDE including an MSC ID of a corresponding terminal in a database; (d ') the PDE performing a plurality of SMDPP procedures to the terminal through the corresponding MSC and returning the result to the MPC when GPS positioning fails; (e ') the MPC sends a page request to the MSC; (f ') after the MSC performs the paging procedure, transmitting the cell information where the subscriber is located to the MPC; (g ') performing the response to the location inquiry request with the LBSP; Positioning method of a GPS support terminal comprising a. The method of claim 2, The step (b ') may include (b'1) requesting an MSC information in which the corresponding terminal is registered to the HLR by an SMS through an SMS; (b'2) receiving the MSC information of the MS from the HLR in response to the request by receiving an SMS.

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