KR100789825B1 - Method for transmitting the location information - Google Patents

Abstract

The present invention provides a method for transmitting location information in a communication environment including a first terminal, a server, and a second terminal, the method comprising: receiving a start message to start a location tracking procedure; A method of transmitting location information comprising the steps of obtaining location information of a first terminal by performing a location tracking procedure and transmitting a message including the obtained location information to a second terminal.

Therefore, according to the present invention, a terminal user provides an efficient and desirable method for transmitting a user's current location information to another terminal user in a location information system, and provides a location information service using a terminal by defining a message therefor. It is possible to do

SUPL, SET, SLP, Location Tracking, Terminal, Server, Message

Description

How to send location information {METHOD FOR TRANSMITTING THE LOCATION INFORMATION}

1 is a diagram showing a first embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention;

2 is a view showing a second embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention;

3 is a view showing a third embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention;

4 is a view showing a fourth embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention;

5 is a view showing a fifth embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention;

6 is a view showing a sixth embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention;

FIG. 7 is a view for explaining a common part in common between messages transmitted and received between a terminal and a server in a method of transmitting location information of a target terminal to a notification terminal according to the present invention; FIG.

8 illustrates an embodiment of an initialization message according to the present invention.

9 illustrates an embodiment of a start message according to the present invention.

10 illustrates an embodiment of a response message according to the present invention.

11 is a view showing an embodiment of a location tracking initialization message according to the present invention.

12 illustrates an embodiment of a location tracking message according to the present invention.

13 illustrates an embodiment of an end message according to the present invention.

14 illustrates an embodiment of an authentication response message according to the present invention.

15 illustrates an embodiment of a location tracking notification message according to the present invention.

* Explanation of symbols for main parts of the drawings

100, 200, 300, 400, 500, 600: Target SET

110, 210: SLP

120, 220, 340, 440, 540, 640: Notified SET

211: SLC 212: SPC

310, 420, 510, 610: H-SLP 320, 410, 520, 620: V-SLP

330, 430, 530, 630: N-SLP 411: V-SLC

412: V-SPC 611: H-SLC

612: H-SPC

The present invention relates to a location information system for mobile communication, and more particularly, to a method of transmitting location information from a terminal to a specific terminal of a specific person when a location information service wants to notify a specific person of his / her location information. It is about.

The mobile communication system provides a location based service (LSB) that locates and utilizes a terminal based on a mobile communication network. For example, a service for tracking the location of a person or thing such as a friend finder, vehicle navigation, and emergency rescue are typical examples of the location information service.

Currently, the mobile communication system provides the above location-based services through a control plane of the network. However, services provided through such a control plane (Signal) for positioning (Signaling) and positioning according to the network structure, such as 3GPP (3rd Generation Partnership Project), 3GPP2 (3GPP2) The structure of the location tracking system will be different.

Therefore, in order to update a service or introduce a new location tracking method to the network, all network elements that need to be changed due to the change of the control plane, such as signaling and protocol of the control plane, There was a problem that needs to be updated or newly introduced.

In order to solve the above problems, a user plane protocol (user plane protocol) for providing a location information service in a user plane has been defined.

Since the user plane protocol transmits information necessary for positioning using a user plane, the user plane protocol is independent of the network structure, and even if the service is renewed or a new location tracking method is introduced. This has the advantage that it is not necessary to update all the network elements that make up the location tracking system.

However, in the user plane protocol, a preferred method for informing a user who uses a specific terminal of his or her location information by using a terminal of the user plane protocol has not been proposed, which is a problem in performing a location tracking procedure.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a more efficient location tracking service for a terminal user to inform other specific terminal users of their location information.

In order to achieve the above object, the present invention provides a method for transmitting location information in a communication environment including a first terminal, a server, and a second terminal, the method comprising: receiving a start message to start a location tracking procedure; And after receiving, performing location tracking with the first terminal to obtain location information of the first terminal, and transmitting a message including the obtained location information to the second terminal. Provides a method of transmitting information.

In addition, the present invention comprises a first terminal, a second terminal, a home server, a visited server, the location information transmission method of a communication environment in which the first terminal is located in the visited network, the home server in the first terminal Transmitting a start message to start the location tracking procedure, determining that the home server receiving the start message performs location tracking of the first terminal through the visiting server, and between the visited server and the first terminal. Performing location tracking to obtain the location information of the first terminal and transmitting the location information obtained to the home server, and the home server receiving the location information sends a message including the location information of the first terminal to the second terminal. It provides a location information transmission method comprising the step of transmitting.

The present invention also includes a visited server comprising a first terminal, a second terminal, a home server, a server manager, and a location calculator, wherein the first terminal is located in a visited network. Transmitting a start message to start the location tracking procedure from the first terminal to the home server, and the home server receiving the start message determines to perform the location tracking of the first terminal through the server manager of the visited server. And obtaining location information of the first terminal by performing a location tracking procedure between the location calculation unit of the visited server and the first terminal, and transmitting the obtained location information to the server manager of the visited server. Transmitting location information from the server manager to the home server, and the home server receiving the location information transmits a message including the location information to the second terminal. To provide a position information transmission method which comprises including the system.

In addition, the present invention comprises a first terminal, a second terminal, a home server, a visited server, the location information transmission method of a communication environment in which the first terminal is located in the visited network, the home server in the first terminal Transmitting a start message to initiate the location tracking procedure, determining that the home server receiving the start message performs location tracking of the first terminal, and performing a location tracking procedure between the home server and the first terminal. And performing a step of acquiring the location information of the first terminal, and transmitting the message including the acquired location information to the second terminal.

In addition, the present invention comprises a first server, a second terminal, a home server composed of a server manager and a position calculator, and a visited server, wherein the first terminal is located in the visited network in the location information transmission method Transmitting a start message from the first terminal to the server management unit of the home server to start the location tracking procedure, and the server management unit of the home server receiving the start message receives the location of the first terminal through the location calculation unit of the home server. Determining to perform tracking, performing a location tracking procedure between the location calculation unit of the home server and the first terminal to obtain location information of the first terminal, and transmitting the obtained location information to the server manager of the home server. And a server manager of the home server receiving the location information, transmitting a message including the location information to a second terminal. It provides a position information transmission method according to claim.

Therefore, according to the present invention, a terminal user provides an efficient and desirable method for transmitting a user's current location information to another terminal user in a location information system, and provides a location information service using a terminal by defining a message therefor. It is possible to do

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can be specifically realized for the above purpose.

In addition, the terms used in the present invention was selected as a general term widely used as possible now, but in some cases, the term is arbitrarily selected by the applicant, in which case the meaning is described in detail in the description of the invention, It is to be understood that the present invention should be understood as the meaning of terms rather than the names of terms.

In this regard, in the present invention, "protocol" means a communication protocol, "User Plane Protocol" means a protocol in the user plane, and in particular "user plane protocol" as an example Plane Location Protocol (Secure User Plane Location Protocol) "means a protocol for providing location information service in the user plane (User Plane).

In the present invention, as a user plane location protocol, SUPL (Secure User Plane Location: hereinafter referred to as "SUPL") protocol is described as an example, but the technical concept of the present invention is not limited to the SUPL protocol.

In this regard, in the present invention, the term "terminal" means a point indicating a point at which information is inputted or outputted in a communication network, or means a device for making or viewing data in a digital data transmission system or a device for transmitting or receiving data. do.

Hereinafter, the present invention will be described using SET (SUPL Enabled Terminal: 'SET'), which is a terminal capable of a user plane location protocol as a terminal, for convenience of description, but the terminal in the user plane location protocol is a SUPL Agent. Also referred to as.

In particular, the present invention transmits its own location information to another specific terminal, defines a terminal that is the target of the location tracking target terminal, the purpose SET (Target SUPL Enabled Terminal: referred to as 'target SET') An exemplary embodiment of a terminal will be described. The target terminal wants to receive its own location information, and defines a specific terminal that is notified or receives the location information of the target terminal as a notification terminal. Hereinafter, one example of a notification terminal will be described. However, it is obvious that the technical concept of the present invention is equally applicable to other terminals.

In addition, for example, a terminal that transmits its own location information to another specific terminal is defined as a first terminal, and the target terminal wants to receive its own location information, and receives a specific terminal that receives the location information of the target terminal. It may be defined and used as a second terminal.

In relation to the present invention, the term "server" refers to an apparatus or program for operating management software for controlling access to all or part of a communication network and access to resources of the communication network with respect to other terminals on a communication network. .

In addition, the server may include a "position calculation unit" for calculating the position of a specific terminal and a "server manager" for overall protocol management in the server.

In particular, in one embodiment of the server related to the present invention SLP (SUPL Location Platform: referred to as 'SLP'), an embodiment of the position calculation unit SPC (SUPL Position Center: referred to as 'SPC'), One embodiment of the server management unit to describe an SLC (SUPL Location Center: hereinafter referred to as 'SLC'), but it is obvious that the present invention is equally applicable to other servers.

In this regard, in the present invention, a network initially registered or subscribed to by a terminal is called a home network (HN), and when the terminal is moved and connected to a network other than the home network, This network is referred to as a visited network (VN).

In addition, a server in a home network is called a home server or an H-server (H-Server), and a server in a visited network is called a visited server or a V-server. -Server, hereinafter referred to as 'V-server'), and a server in a network to which a notification terminal notified of location information belongs to a notification server or N-server (N-Server, hereinafter referred to as 'N-server'). Is defined.

In particular, one embodiment of the H-server H-SLP (Home SLP: hereinafter referred to as "H-SLP") in connection with the present invention, one embodiment of the V-server V-SLP (Visited SLP: `` V-SLP '' One example of an N-server is to describe N-SLP (Notified SLP: hereinafter referred to as 'N-SLP'), but the present invention is not limited thereto. Note that is a logical entity and can be identical to H-SLP.

In this regard, in the present invention, the case where the terminal is located in the HN is referred to as a non-roaming successful case, and the case where the terminal is located in the VN rather than the HN is referred to as a roaming successful case. The case where the server calculates the location information through communication with the location calculator via the server manager is called a proxy mode, and the case where the terminal calculates the location information by directly communicating with the location calculator is a non-proxy. This is defined as Non-Proxy Mode.

That is, the case where the target SET as the target terminal is located in the HN is called non-roaming successful case, and the case where the target SET as the target terminal is located in the VN rather than the HN is roaming (Roaming Successful Case). The case where the target SET, which is the target terminal, calculates the location information through communication with the SPC, which is the position calculation unit, is passed through SLC, which is the server management unit, is called proxy mode. The case of calculating location information by direct communication is defined as non-proxy mode.

However, the present invention is applicable to both the non-roaming successful case and the roaming successful case regardless of the roaming state, and the server is in the proxy mode and the non-proxy mode. Applicable to both (Non-Proxy Mode) is obvious.

In this context, in the present invention, "message" means a unit configured according to a strict rule as one transmission unit and transmitted according to a protocol that is a constant rule between a transmitting device and a receiving device.

In particular, in the present invention, a "ULP message" (hereinafter, referred to as a "ULP message") means a unit for transmitting data according to the SUPL protocol.

In the present invention, the "initialization message" refers to a message first transmitted from the server to the terminal when the network is started, and the "start message" refers to the first message transmitted from the terminal to the server. "Response message" means a message in response to the start message, "location tracking initialization message" means a message sent from the destination terminal to the server when starting the location tracking, "location tracking message" for location tracking The message is transmitted and received by the server and the target terminal, and the "end message" indicates that the completion of a specific process or a message containing specific status information, "authentication response message" is a non-proxy mode network This message is used when it is started. It means the message sent from the home server to the terminal, and the "location tracking notification message" means the notification step. Transmitting a location information of the target terminal, and a means a message including the location information of the target terminal.

In particular, in accordance with the present invention, a SUPL INIT message as an initialization message, a SUPL START message as a start message, a SUPL RESPONSE message as a response message, a SUPL POS INIT message as a location tracking initialization message, a SUPL POS message as a location tracking message, and an end message. Although the SUPL END message, the SUPL AUTH RESP message as the authentication response message, and the SUPL POS NOTIFICATION message as the location tracking notification message, will be described as an example. However, the present invention is not limited to the above embodiment, but may be applied to other messages having the same technical spirit. One is true.

1 is a view showing a first embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention. In particular, the target SET to be tracked in the position is located in the HN and the target SET through the SLC In the non-roaming successful case communicating with the SPC and the proxy mode, the procedure for transmitting the position information of the target SET to the notification SET is described as an example.

Referring to FIG. 1, a first embodiment of a location tracking system includes a destination SET 100, an SLP 110, and a notification SET 120.

The target SET (Target SET) 100 refers to a SET that is the target of the current location tracking, it is a terminal that can communicate with the SUPL network using the SUPL protocol.

In addition, the destination SET 100 obtains location information after performing a location tracking process of transmitting and receiving a message with the SLP 110, which is a server, for location tracking.

The SLP 110 is a server that is a network element that accesses and uses a network resource for location tracking of the destination SET 30 and represents a SUPL SAP (Service Access Point) of the network part. SPC, which is an entity for calculating the location information of 100, and SLC, which is an entity that manages the overall SUPL protocol such as SUPL session management, roaming, resource management, and the like, is preferably provided.

The notification SET 120 means a SET that the destination SET 100 wants to inform its location information, and uses a logical SAP (Service) using the location information of the destination SET 100 received from the SLP 110. An access point).

In this case, the notification SET 120 is a terminal capable of communicating with the SUPL network using the SUPL protocol, such as the destination SET 100, and the destination SET 100 and the notification SET 120 are, for example, UMTS (Universal). User terminal (UE) of mobile telecommunication system, global system for mobile communication (GSM) and mobile station (MS) of IS-95, or a laptop and personal digital assistants (PDA) supporting SUPL protocol It is self-evident.

Hereinafter, a first embodiment of a method in which a destination SET 100 transmits its location information to the notification SET 120 using the SUPL protocol in the location tracking system according to the present invention will be described. SUPL START message initially sent to SLP 110 includes notification SET id (notified SET-id) information, and SLP 110 transmits SUPL POS NOTIFICATION message to notification SET 120 to destination SET 100. The present invention relates to a location tracking procedure in case of notifying location information.

First, the target SET 100 establishes a data link connection to the mobile communication network to enable data communication to start a SUPL session (S100).

After the data link connection, the destination SET 100 sends a SUPL START message to the SLP 110 to begin the location tracking procedure. At this time, the destination SET 100 in the SUPL START message session-id, lid, qop, SET capabilities, and location information to request the SLP 110 to send its location information to the notification SET 120 (Notified SET-id) of the notification SET 120 to receive the message (S101).

Here, the SUPL START message will be described below in detail with reference to FIG. 9.

Receiving the SUPL START message from the target SET 100, the SLP 110 checks whether the target SET 100 is in the roaming state and confirms that the target SET 100 is not in the roaming state (S102). This is because the first embodiment describes a non-roaming case.

After confirming that the target SET 100 is not in a roaming state, the SLP 110 transmits a SUPL RESPONSE message including session-id information to the target SET 100, indicating that a service request has been accepted by the target SET 100. Notify and inform the start of the location tracking procedure (S103).

Here, the SUPL RESPONSE message will be described in detail with reference to FIG. 10 below.

Upon receiving the SUPL RESPONSE message from the SLP 110 successfully, the objective SET 100 transmits a SUPL POS INIT message to the SLP 110 indicating the start of the actual location tracking (S104).

Here, the SUPL POS INIT message includes information such as session-id, lid, SET capabilities, etc., which will be described below in detail with reference to FIG. 11.

When the SLP 110 receives the SUPL POS INIT message from the destination SET 100, the SLP 110 and the destination SET 100 agree with each other through the SUPL START, SUPL RESPONSE, and SUPL POS INIT messages. Calculate the position of the target SET 100 through Assisted A-GPS, SET-Based A-GPS, Cell id, etc. and location tracking protocols (GSM: RRLP, 3GPP: RRC, 3GPP2: TIA-801) do. At this time, the location tracking protocol message transmitted and received between the SLP 110 and the target SET 100 is encapsulated in the SUPL POS message (S105).

Here, the SUPL POS message includes session-id and RRLP / RRC / TIA-801 information. Hereinafter, the SUPL POS message will be described in detail with reference to FIG. 12.

As a result of performing step S105, when the position of the target SET 100 is calculated, the SLP 110 transmits a SUPL END message to the target SET 100 to indicate that the SUPL session for location tracking is finished, and the target SET 100 ) Terminates the connection with the SLP 110 (S106).

Here, the SUPL END message includes posresult information indicating a session-id and a location tracking result. Hereinafter, the SUPL END message will be described in detail with reference to FIG. 13.

In addition, the SLP 110 transmits the position information of the target SET 100 calculated through the SUPL POS NOTIFICATION message including the posresult information to the notification SET 120 (S107).

At this time, the SUPL POS NOTIFICATION message uses the same transmission method as the SUPL INIT message, and may be in the form of a WAP PUSH or SMS message including the calculated position information (pos). A detailed description of the SUPL POS NOTIFICATION message will be given below. This will be described in detail with reference to FIG. 15.

Also, the SLP 110 may transmit the location information of the destination SET 100 calculated using the MLP SLR (Mobile Location Protocol Standard Location Report: SLP) message to the notification SET 120. It may also be implemented using methods such as WAP PUSH and SMS messages.

Here, a detailed description of the SUPL INIT message will be described in detail with reference to FIG. 8 below.

According to the first embodiment as described above, in the non-roaming mode and the proxy mode, the location information of the destination SET 100 may be transmitted to the notification SET 120 that the destination SET 100 wants to notify.

2 is a view showing a second embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention. In particular, the target SET to be tracked is located in HN and the target SET is directly connected to the SPC. In the case of communicating non-roaming successful case and non-proxy mode, it is a figure explaining the procedure which transmits the position information of a target SET to a notification SET, for example.

The location tracking system of FIG. 2 may be configured to include a destination SET 200, an SLP 210, and a notification SET 220, as compared to FIG. 1, in particular, the SLP 210 may include an SLC 211. And the SPC 212 is different from the location tracking system of FIG. 1.

Here, the SPC 212 is an entity for calculating the location information of the target SET 200, which is a location tracking target terminal, and the SLC 211 is a SUPL session management, roaming, resource management, and the like. The entity that manages the overall SUPL protocol.

First, the target SET 200 establishes a data link connection to the mobile communication network to enable data communication to start a SUPL session (S200).

After the data link connection, the destination SET 200 sends a SUPL START message to the SLC 211 to begin the location tracking procedure. At this time, the target SET 200, the session-id, lid, qop, SET capabilities, and location information in the SUPL START message to request the SLC 211 to transmit its location information to the notification SET 220 (Notified SET-id) of the notification SET 220 to receive the message (S201).

Receiving the SUPL START message from the target SET 200, the SLC 211 checks whether the target SET 200 is currently in a roaming state, and confirms that the target SET 200 is not in the roaming state (S202). This is because the second embodiment describes a non-roaming case.

After confirming that the target SET 200 is not in a roaming state, the SLC 211 generates a session-id for use in a session with the target SET 200, and generates session-id information to the SPC 212. , The target SET-id information, the location calculation method, the location tracking protocol information, and the like, and inform the start of the location session with the target SET 200 (S203).

Then, the SLC 211 transmits a SUPL RESPONSE message to the destination SET 200 to inform the destination SET 200 that the service request has been accepted, and notifies the start of the location tracking session (S204).

In this case, the SUPL RESPONSE message includes session-id, SPC address, SET auth-key, and key-id 4 information. In particular, the SLC RESPONSE message includes an SLC in order for the target SET 200 to start a location tracking session with the SPC 212. 211 preferably includes the SPC address information in the SUPL RESPONSE message.

The destination SET 200 receiving the SUPL RESPONSE message including the SPC 212 address information from the SLC 211 disconnects from the SLC 211 and transmits the SUPL POS INIT message to the SPC 212 to the destination SET. Start an actual location tracking session of 200. At this time, when the SPC 212 receives the SUPL POS INIT message from the target SET 200, it informs the SLC 211 that the location tracking session has started with the target SET 200 (S205).

The SPC 212 and the destination SET 200 are agreed upon for location calculation methods (SET-Assisted A-GPS, SET-Based A-GPS, Cell id, etc.) and location tracking protocols (GSM: RRLP, 3GPP: RRC, 3GPP2: TIA-801 performs a process of calculating the position of the target SET (200). In this case, the location tracking protocol message transmitted and received between the SPC 212 and the target SET 200 is encapsulated in the SUPL POS message (S206).

As a result of the step S206, when the position of the destination SET 200 is calculated, the SPC 212 transmits a SUPL END message to the destination SET 200 to indicate that the SUPL session for location tracking is finished, and the destination SET 200 ) Disconnects from the SPC 212. In addition, the SPC 212 notifies the SLC 211 that the SUPL session with the target SET 200 is finished and transmits the calculated position information (S207).

In addition, the SLC 211 transmits the position information of the target SET 200 calculated through the SUPL POS NOTIFICATION message to the notification SET 220. At this time, the SUPL POS NOTIFICATION message uses the same transmission method as the SUPL INIT message, and may be in the form of a WAP PUSH or SMS message including the calculated position information (pos).

In addition, the SLC 211 may transmit the location information of the target SET 200 calculated using the MLP SLR message to the notification SET 220, and may be implemented using a method such as WAP PUSH and SMS.

According to the second embodiment as described above, in the non-roaming mode and the non-proxy mode, the location information of the destination SET 200 may be transmitted to the notification SET 220 that the destination SET 200 wants to notify.

3 is a view showing a third embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention. In particular, the target SET to be tracked is located in a VN instead of an HN. In this case, the SLC communicates with the SPC and transmits the location information of the target SET to the notification SET in the case of the Roaming Successful Case and the Proxy Mode performing the location tracking procedure in the V-SLP. For example, it is the figure demonstrated.

The location tracking system of FIG. 3 includes a destination SET 300 that is a location tracking target terminal, an H-SLP 310 that is a server within a home network, a V-SLP 320 that is a server within a visited network, and a notification SET 340. N-SLP 330 that is a server located in the, and the notification SET 340 that is notified of the location information of the target SET 300 is characterized in that it is configured.

In particular, the N-SLP 330 is defined as a server located in the network where the notification SET 340 is located, the N-SLP 330 may be the same as the H-SLP 310 as a logical entity. It is self-evident.

First, the destination SET 300 establishes a data link connection to the mobile communication network to enable data communication to start a SUPL session (S300).

After the data link connection, the destination SET 300 sends a SUPL START message to the H-SLP 310 to begin the location tracking procedure. At this time, the destination SET 300, session-id, lid, qop, SET capabilities, and in the SUPL START message to request the H-SLP 310 to send its location information to the notification SET (340), An ID (notified SET-id) of the notification SET 340 to receive the location information is included (S301).

Upon receiving the SUPL START message from the target SET 300, the H-SLP 310 checks whether the target SET 300 is in the roaming state and confirms that the target SET 300 is in the roaming state (S302). This is because the third embodiment describes the case of roaming.

Thereafter, the H-SLP 310 determines to calculate the position of the target SET 300 through the V-SLP 320, and sends a SUPL START message including information on session-id, lid, qop, SET capabilities, and the like. It encapsulates in an RLP SSRLIR (Roaming Location Protocol Standard SUPL Roaming Location Immediate Request) message (hereinafter referred to as 'RLP SSRLIR') and tunnels to the V-SLP 320 (S303).

The V-SLP 320 accepts the SUPL session request and sends a SUPL RESPONSE message including information on the session-id, V-SLP address, and the like to the RLP SSLOIA (Roaming Location Protocol Standard SUPL Roaming Location Immediate Answer: hereinafter, 'RLP'). SSRLIA '.) Encapsulate the message and tunnel to the H-SLP 310 (S304).

The H-SLP 310 decapsulates the RLP SSRLIA message received from the V-SLP 320, and transmits a SUPL RESPONSE message including information such as session-id to the destination SET 300. At this time, the H-SLP 310 preferably does not include the V-SLP address in the SUPL RESPONSE message in order for the destination SET 300 to communicate with the V-SLP 320 through the H-SLP 310. (S305).

Successfully receiving the SUPL RESPONSE message from the H-SLP 310, the destination SET 300 notifies the start of actual location tracking, and sends the SUPL POS INIT message including information on session-id, lid, and SET capabilities to the H-SLP ( 310) (S306).

The H-SLP receiving the SUPL POS INIT message from the destination SET 300 converts the SUPL POS INIT message to the V-SLP (RLP SSRP) message via an RLP SSRP (Roaming Location Protocol Standard SUPL Roaming Position) message. Tunneling to 320 (S307).

Upon receiving the RLP SSRP message including the SUPL POS INIT message, the V-SLP 320 and the destination SET 300 agree on a position calculation method (SET-Assisted A-GPS, SET-Based A-GPS, Cell ID, etc.). And the location tracking protocol (GSM: RRLP, 3GPP: RRC, 3GPP2: TIA-801) performs a process of obtaining the location information by calculating the location of the target SET (300) (S308).

At this time, the message transmitted and received between the V-SLP 320 and the destination SET 300 is transmitted and received through the H-SLP (310).

When the location of the target SET 300 is calculated by the step S308 and the location information is obtained, the V-SLP 320 sends the SUPL END message including the session-id and posresult information through the RLP SSRP message. It transmits to 310 (S309).

The H-SLP 310 transmits a SUPL END message obtained by decapsulating the received RLP SSRP message to the destination SET 300 to inform the end of the SUPL session for location tracking. The target SET 300 terminates the connection with the H-SLP 310 (S310).

Next, since the process of the next step is different according to the case where the H-SLP 310 and the N-SLP 330 are different from each other, the following description will be made.

When the H-SLP 310 and the N-SLP 330 are different from each other, the H-SLP 310 encapsulates the SUPL POS NOTIFICATION message including the calculated position information into the RLP SSRP message. To tunnel to the N-SLP 330 (S311).

The N-SLP 330 decapsulates the received RLP SSRP message, and transmits a SUPL POS NOTIFICATION message including position information calculated by the notification SET 340 (S312).

At this time, the SUPL POS NOTIFICATION message uses the same transmission method as the SUPL INIT message, and may be in the form of a WAP PUSH or SMS message including the calculated position information (pos).

In addition, the N-SLP 330 may transmit the location information of the destination SET 300 calculated using the MLP SLR message to the notification SET 340, and may be implemented using a method such as a WAP PUSH and an SMS message. Can be.

In contrast, when the H-SLP 310 and the N-SLP 330 are the same, the H-SLP 310 transmits a SUPL POS NOTIFICATION message including the calculated position information to the notification SET 340. do.

Here, the SUPL POS NOTIFICATION message uses the same transmission method as the SUPL INIT message, and the location information in the form of a WAP PUSH or SMS message including the calculated position information pos is notified from the H-SLP 310 SET 340 ) Can be sent.

According to the third embodiment as described above, in the case of roaming and the proxy mode, the location information of the destination SET 300 may be transmitted to the notification SET 340 which the destination SET 300 wants to notify.

FIG. 4 is a view showing a fourth embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention. In particular, the target SET to be tracked is located in a VN instead of an HN. It communicates directly with this SPC, and transmits the location information of the target SET to the notification SET when the V-SPC is in a roaming successful case and a non-proxy mode in which the location tracking procedure is performed. It is a figure explaining the procedure as an example.

The location tracking system of FIG. 4 is a network in which a target SET 400, which is a location target terminal, a V-SLP 410, which is a server in a visited network, an H-SLP 420, which is a server in a home network, and a notification SET 440. N-SLP 430, which is a server located at, and notification SET 440 that is notified of the location information of the target SET 400, characterized in that it is configured to include.

At this time, the V-SLP 410 is a V-SPC (412) that is an entity that calculates the location information of the target SET (400) that is the location tracking target terminal, SUPL session management, roaming, resource management (Resource Management) It is configured to include a V-SLC (411) that is an entity that manages the overall SUPL protocol, such as).

In this regard, a server located in the network where the notification SET 440 is located is defined as an N-SLP 430, where the N-SLP 430 is a logical entity and may be identical to the H-SLP 420. It may be different.

First, the target SET 400 establishes a data link connection to the mobile communication network to enable data communication to start a SUPL session (S400).

After the data link connection, the destination SET 400 sends a SUPL START message to the H-SLP 420 to begin the location tracking procedure. At this time, the destination SET 400 in the SUPL START message session-id, lid, qop, SET capabilities, and to request the H-SLP 420 to send its location information to the notification SET 440, An ID (notified SET-id) or the like of the notification SET 440 to receive the location information is included (S401).

Upon receiving the SUPL START message from the target SET 400, the H-SLP 420 checks whether the target SET 400 is in a roaming state and confirms that the target SET 400 is in the roaming state (S402). This is because the fourth embodiment describes the case of roaming.

Thereafter, the H-SLP 420 decides to calculate the position of the target SET 400 through the V-SLC 411 and sends a SUPL START message including information on session-id, lid, qop, and SET capabilities. Encapsulation in the RLP SSRLIR message (tunneling) to the V-SLC (411) (S403).

The V-SLC 411 accepts the SUPL session request, allocates a session-id to be used for a session with the target SET 400, and allocates session-id information to the V-SPC 412. Information on the target SET, information on a location calculation method, and a location tracking protocol are transmitted, and a location session with the destination SET 400 is started (S404).

The V-SLC 411 tunnels the SUPL RESPONSE message including the session-id, V-SLP address, and the like into an RLP SSRLIA message to the H-SLP 420. At this time, the V-SLC 411 transmits the target SET 400 including the V-SPC address in the SUPL RESPONSE message so that the target SET 400 can establish a location session with the V-SPC 412 (S405).

The H-SLP 420 generates an authentication related key to be used in the session between the V-SPC 412 and the destination SET 400, and provides information such as session-id, SPC auth-key, key-id 3, and the like. The encapsulated SUPL AUTH RESP message is encapsulated in the RLP SSRP message, and related information is transmitted to the V-SLC 411 (S406).

In addition, the H-SLP 420 decapsulates the RLP SSRLIA message received from the V-SLC 411 in step S405, and includes a session-id, a V-SPC address, a set auth-key, A SUPL RESPONSE message including information such as key-id 4 is sent to the destination SET 400. That is, the SUPL RESPONSE message preferably includes a V-SPC address and authentication-related key information (S407).

Upon receiving the SUPL RESPONSE message from the H-SLP 420 successfully, the destination SET 400 disconnects the H-SLP 420 and establishes a location session with the V-SPC 412 using the received information. Set it. In addition, the destination SET 400 notifies the start of location tracking, transmits a SUPL POS INIT message including information on session-id, lid, SET capabilities, etc. to the V-SPC 412, and receives the SUPL POS INIT message. The V-SPC 412 informs the V-SLC 411 that the location session with the destination SET 400 has started (S408).

Upon receiving the SUPL POS INIT message, the V-SPC 412 and the destination SET 400 may agree upon a position calculation method (SET-Assisted A-GPS, SET-Based A-GPS, Cell ID, etc.) and a location tracking protocol ( In step S409, a position is calculated by calculating a position of the target SET 400 through GSM: RRLP, 3GPP: RRC, and 3GPP2: TIA-801.

At this time, the location tracking protocol message transmitted and received between the V-SPC 412 and the target SET 400 is encapsulated in the SUPL POS message and then transmitted and received.

When the position of the target SET 400 is calculated in step S409 and the position information is obtained, the V-SPC 412 transmits a SUPL END message including the session-id and posresult information to the target SET 400. The destination SET 400 terminates the connection with the V-SPC 412 (S410).

In addition, the V-SPC 412 transmits the calculated position information of the target SET 400 to the V-SLC 411, and informs that the SUPL session is over (S411).

The V-SLC 411 receiving the position information of the target SET 400 calculated from the V-SPC 412 sends a SUPL END message including the session-id and the posresult information, which is the calculated position information, through the RLP SSRP message. -Tunnel to the SLP 420 (S412).

Next, the process of the next step is different according to the case where the H-SLP 420 and the N-SLP 430 are different from each other, and will be described below.

When the H-SLP 420 and the N-SLP 430 are different from each other, the H-SLP 420 encapsulates a SUPL POS NOTIFICATION message including the calculated position information into an RLP SSRP message. In operation S413, the device tunnels to the N-SLP 430.

The N-SLP 430 decapsulates the received RLP SSRP message and transmits a SUPL POS NOTIFICATION message including position information calculated by the notification SET 440 (S414).

At this time, the SUPL POS NOTIFICATION message uses the same transmission method as the SUPL INIT message, and may be in the form of a WAP PUSH or SMS message including the calculated position information (pos).

In addition, the N-SLP 430 may transmit the location information of the destination SET 400 calculated using the MLP SLR message to the notification SET 440. The N-SLP 430 may be implemented using a method such as a WAP PUSH and an SMS message. Can be.

In contrast, when the H-SLP 420 and the N-SLP 430 are the same, the H-SLP 420 transmits a SUPL POS NOTIFICATION message including the calculated position information to the notification SET 440. do.

Here, the SUPL POS NOTIFICATION message uses the same transmission method as the SUPL INIT message, and the location information is transmitted from the H-SLP 420 in the form of a WAP PUSH or SMS message including the calculated position information pos. ) Can be sent.

According to the fourth embodiment as described above, in the case of roaming and the non-proxy mode, location information of the destination SET 400 may be transmitted to the notification SET 440 which the destination SET 400 wants to notify.

5 is a view showing a fifth embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention. In particular, the target SET to be tracked is located in the VN instead of the HN. The procedure of communicating with the SPC through the SLC and transmitting the location information of the target SET to the notification SET in the case of the Roaming Successful Case and the Proxy Mode performing the location tracking procedure through the H-SLP. It is a figure demonstrated to an example.

The location tracking system of FIG. 5 includes a destination SET 500 that is a location target terminal, an H-SLP 510 that is a server in a home network, a V-SLP 520 that is a server within a visited network, and a notification SET 440. N-SLP 530, which is a server located in the server, and notification SET 540 to be notified of the location information of the target SET 500.

In this regard, a server located in the network where the notification SET 540 is located is defined as an N-SLP 530, where the N-SLP 530 is a logical entity and may be identical to the H-SLP 510. It may be different.

First, the destination SET 500 establishes a data link connection to the mobile communication network to enable data communication to start a SUPL session (S500).

After the data link connection, the destination SET 500 sends a SUPL START message to the H-SLP 510 to begin the location tracking procedure. At this time, the destination SET 500 in the SUPL START message session-id, lid, qop, SET capabilities, and to request the H-SLP 510 to send its location information to the notification SET 540, and An ID (notified SET-id) of the notification SET 540 to receive the location information is included (S501).

The H-SLP 510 that receives the SUPL START message from the destination SET 500 checks whether the destination SET 500 is currently roaming, and confirms that the destination SET 500 is in the roaming state (S502). This is because the fifth embodiment describes the case of roaming.

Thereafter, the H-SLP 510 decides to execute the location tracking session and requests the session-id, lid, and qop to request location information of the target SET 500 that is not calculated by the V-SLP 520. RLP SRLIR (Roaming Location Protocol Standard Roaming Location Immediate Request: hereinafter referred to as 'RLP SRLIR') message including information on SET capabilities, etc. is transmitted (S503).

The V-SLP 520 transmits the location information that is not calculated to the H-SLP 510 through a RLP SRLIA (Roaming Location Protocol Standard Roaming Location Immediate Answer: RLP SRLIA) message (S504). ).

The H-SLP 510 transmits a SUPL RESPONSE message containing information such as session-id to the destination SET 500 to inform the destination SET 500 that the service request has been accepted and to start the location tracking procedure ( S505).

Upon receiving the SUPL RESPONSE message from the H-SLP 510 successfully, the destination SET 500 notifies the actual location tracking procedure and sends the SUPL POS INIT message including information on session-id, lid, and SET capabilities to the H-SLP. In step 506, the process transmits to step 510.

When the H-SLP 510 receives the SUPL POS INIT message from the destination SET 500, the H-SLP 510 and the destination SET 500 agree on the SUPL START, SUPL RESPONSE, and SUPL POS INIT messages. The location of the target SET 400 is determined through calculation methods (SET-Assisted A-GPS, SET-Based A-GPS, Cell ID, etc.) and location tracking protocols (GSM: RRLP, 3GPP: RRC, 3GPP2: TIA-801). A process of obtaining the location information by calculating is performed (S507).

At this time, the location tracking protocol message transmitted and received between the H-SLP 510 and the destination SET 500 is encapsulated in the SUPL POS message and then transmitted and received.

When the position of the target SET 400 is calculated in step S409 and the position information is obtained, the H-SLP 510 transmits a SUPL END message including the session-id and posresult information to the target SET 500. Informing that the SUPL session for tracking has ended, the destination SET 500 terminates the connection with the H-SLP 510 (S508).

Next, since the process of the next step is different according to the case where the H-SLP 510 and the N-SLP 530 are different from each other, the following description will be divided.

When the H-SLP 510 and the N-SLP 530 are different from each other, the H-SLP 510 encapsulates a SUPL POS NOTIFICATION message including the calculated position information into an RLP SSRP message. In operation S509, the terminal tunnels to the N-SLP 530.

The N-SLP 530 decapsulates the received RLP SSRP message, and transmits a SUPL POS NOTIFICATION message including position information calculated by the notification SET 540 (S510).

At this time, the SUPL POS NOTIFICATION message uses the same transmission method as the SUPL INIT message, and may be in the form of a WAP PUSH or SMS message including the calculated position information (pos).

In addition, the N-SLP 530 may transmit the location information of the destination SET 500 calculated using the MLP SLR message to the notification SET 540, and may be implemented using a method such as a WAP PUSH and an SMS message. Can be.

In contrast, when the H-SLP 510 and the N-SLP 530 are the same, the H-SLP 510 transmits a SUPL POS NOTIFICATION message including the calculated position information to the notification SET 540. do.

Here, the SUPL POS NOTIFICATION message uses the same transmission method as the SUPL INIT message, and the location information is transmitted from the H-SLP 510 in the form of a WAP PUSH or SMS message including the calculated position information pos. ) Can be sent.

According to the fifth embodiment as described above, in the case of roaming and the proxy mode, the location information of the destination SET 500 may be transmitted to the notification SET 540 which the destination SET 500 wants to notify.

FIG. 6 is a view showing a sixth embodiment of a method for transmitting location information of a target terminal to a notification terminal according to the present invention. In particular, the target SET to be tracked is located in a VN rather than an HN. It communicates directly with this SPC, and transmits the location information of the target SET to the notification SET when the H-SPC is in a roaming successful case and a non-proxy mode in which the location tracking procedure is performed. It is a figure explaining the procedure as an example.

The location tracking system of FIG. 6 includes a target SET 600 that is a location target terminal, an H-SLP 610 that is a server within a home network, a V-SLP 620 that is a server within a visited network, and a notification SET 640. N-SLP (630) which is a server located in the, and the notification SET (640) to be notified of the location information of the target SET (600).

In this case, the H-SLP 610 is an H-SPC 612, which is an entity that calculates location information of the target SET 600, which is a location tracking target terminal, SUPL session management, roaming, and resource management. H-SLC 611 which is an entity that manages the overall SUPL protocol.

In this regard, a server located in the network where the notification SET 640 is located is defined as an N-SLP 630, where the N-SLP 630 is a logical entity and may be identical to the H-SLP 610. It may be different.

First, the destination SET 600 establishes a data link connection to the mobile communication network to enable data communication to start a SUPL session (S600).

After the data link connection, the destination SET 600 sends a SUPL START message to the H-SLC 611 to begin the location tracking procedure. At this time, the destination SET 600 in the SUPL START message session-id, lid, qop, SET capabilities, and to request the H-SLC 611 to send its location information to the notification SET (640), An ID (notified SET-id) or the like of the notification SET 640 to receive the location information is included (S601).

Receiving the SUPL START message from the target SET 600, the H-SLC 611 checks whether the target SET 600 is in the roaming state and confirms that the target SET 600 is in the roaming state (S602). This is because the sixth embodiment describes the case of roaming.

Thereafter, the H-SLC 611 determines that the H-SPC 612 executes a location tracking session, and includes information such as msid and lid to request the V-SLP 620 for uncalculated location information. The RLP SRLIR message is transmitted to the V-SLP 620 (S603).

Receiving the RLP SRLIR message, the V-SLP 620 transmits uncalculated location information of the destination SET 600 to the H-SLC 611 through the RLP SRLIA message (S604).

The H-SLC 611 generates a session-id to be used for a session with the destination SET 600, generates session-id information to the H-SPC 612, uncalculated location information of the destination SET, Information about a location calculation method and a location tracking protocol is transmitted, and a location tracking session with the destination SET 600 is started (S605).

The H-SLC 611 transmits a SUPL RESPONSE message to the destination SET 600 including the session-id, H-SPC address, set auth-key, key-id 4, and the like, to the destination SET 600. Signals that the service request has been accepted and informs you to start a location session. That is, in order to enable the destination SET 600 to start a location session with the H-SPC 612, the H-SLC 611 transmits the H-SPC address information in the SUPL RESPONSE message (S606).

Receiving the SUPL RESPONSE message containing the H-SPC address information from the H-SLC 611, the destination SET 600 disconnects from the H-SLC 611 and sends a session-id to the H-SPC 612. The actual location session is initiated by sending a SUPL POS INIT message with information about the lid, SET capabilities, etc. At this time, the H-SPC 612 notifies the H-SLC 611 that the location tracking session with the destination SET 600 has started (S607).

Receiving the SUPL POS INIT message, the H-SPC 612 and the destination SET 600 may agree with the agreed location calculation method (SET-Assisted A-GPS, SET-Based A-GPS, Cell ID, etc.) and the location tracking protocol ( In operation S608, a position of the target SET 600 is calculated by using the GSM: RRLP, 3GPP: RRC, and 3GPP2: TIA-801.

At this time, the location tracking protocol message transmitted and received between the H-SPC 612 and the target SET 600 is encapsulated in the SUPL POS message (encapsulation) and transmitted and received.

When the position of the target SET 600 is calculated in step S608 and the position information is obtained, the H-SPC 612 transmits a SUPL END message including the session-id and posresult information to the target SET 600. Signaling that the SUPL session for tracking has ended, the destination SET 600 disconnects from the H-SPC 612. In addition, the H-SPC 612 transmits the calculated position information of the target SET 600 to the H-SLC 611 and informs that the SUPL session is over (S609).

Next, since the process of the next step is different depending on the case where the H-SLP 610 and the N-SLP 630 are different from each other, the following description will be made separately.

If the H-SLP 610 and the N-SLP 630 are different, the H-SLC 611 encapsulates the SUPL POS NOTIFICATION message including the calculated position information in the RLP SSRP message. In operation S610, the tunneling is performed using the N-SLP 630.

The N-SLP 630 decapsulates the received RLP SSRP message, and transmits a SUPL POS NOTIFICATION message including position information calculated by the notification SET 640 (S611).

At this time, the SUPL POS NOTIFICATION message uses the same transmission method as the SUPL INIT message, and may be in the form of a WAP PUSH or SMS message including the calculated position information (pos).

In addition, the N-SLP 630 may transmit the location information of the destination SET 600 calculated using the MLP SLR message to the notification SET 640, and may be implemented using a method such as a WAP PUSH and an SMS message. Can be.

In contrast, when the H-SLP 610 and the N-SLP 630 are the same, the H-SLC 611 transmits a SUPL POS NOTIFICATION message including the calculated position information to the notification SET 640. do.

Here, the SUPL POS NOTIFICATION message uses the same transmission method as the SUPL INIT message, and the position information is transmitted from the H-SLC 611 in the form of a WAP PUSH or SMS message including the calculated position information pos. 640).

According to the sixth embodiment as described above, in the case of roaming and the non-proxy mode, the location information of the destination SET 600 may be transmitted to the notification SET 640 which the destination SET 600 wants to notify.

Hereinafter, a detailed description of the ULP messages will be described in detail with reference to FIGS. 7 to 15.

FIG. 7 is a view for explaining a common part common to messages transmitted and received between a terminal and a server in performing a method of transmitting location information of a target terminal to a notification terminal according to the present invention. The common part can be viewed as a header part of the message.

The common part is octets, and a "Message Length" parameter indicating the length of the entire User Plane Location Protocol (ULP) message, and the version of the ULP protocol are major and minor (Octets). Minor), a "Version" parameter in the form of a service indicator, a "Session id" parameter indicative of a session-specific session id, and a "Message Payload" parameter incorporating one of the messages defined by ULP. It is configured to include.

In particular, the messages defined in the "Message Payload" parameter are SUPL INIT message, SUPL START message, SUPL RESPONSE message, SUPL POS INIT message, SUPL POS message, SUPL END message, SUPL AUTH REQ message, SUPL AUTH RESP message, SUPL POS NOTIFICATION message.

8 is a diagram illustrating an embodiment of an initialization message according to the present invention. In particular, FIG. 8 illustrates an embodiment of a SUPL INIT message, which is an initialization message transmitted from an SLP to a target SET.

The SUPL INIT message includes a "Positioning Method" parameter indicating the positioning technologies required by the SLP, and a "Notification" parameter for providing the SET with matters regarding LCS Notification and Privacy. And a "Session ID" parameter containing an SLP Address, a "QoP" parameter indicating the Desired Quality of Position, and an SLP mode in Proxy Mode or Non-Proxy. The "SLP Mode" parameter indicating whether the mode is Non-Proxy Mode, and the Message Authentication Code (MAC, hereinafter referred to as 'MAC') used for integrity protection of SUPL INIT messages. It includes a "MAC" parameter that includes, and a "Key identity" parameter indicating identity information for the key (Key) used to identify the MAC.

In this regard, the "Session ID" parameter includes an SPC Address for non-proxy mode, and the "SLP Address" field is optional for proxy mode. In the case of (Optional) or Non-Proxy Mode, this is a required field.

In addition, the SLP Address is an address used by the SET to create a secure IP when connecting to the SLP or SPC.

FIG. 9 is a diagram illustrating an embodiment of a start message according to the present invention. In particular, FIG. 9 illustrates an embodiment of a SUPL START message, which is a start message transmitted from an objective SET to an SLP.

In the SUPL START message, a message specific part except for the common part includes a "SET capabilities" parameter indicating the capabilities of the SET and a "Location Id" indicating the cell information of the SET. A "QoP" parameter indicating a desired quality of position, a "QoP" parameter, and a "Notified SET Id" indicating an id value (Notified SET identity value) of a notification SET to receive position information of the target SET. It is configured to include.

FIG. 10 is a diagram illustrating an embodiment of a response message according to the present invention. In particular, FIG.

The SUPL RESPONSE message includes a "Positioning Method" parameter indicating a Positioning Method required for the SUPL POS session, except for the Common Part, and a non-proxy mode. "SET Auth key" containing the "SLP Address" parameter required for the SPC address and the Authentication Key required for non-proxy mode only and used by the SET for SPC Authentication. Parameter and a "Key Identity 4" parameter that is only required for the non-proxy mode and includes the Key Identity.

In this regard, the SLP address of the "SLP Address" parameter is preferably used by the SET to establish a data connection to the SPC.

11 is a view showing an embodiment of a location initialization initialization message according to the present invention, in particular, a view showing an embodiment of a SUPL POS INIT message of the location initialization initialization message, the SUPL POS INIT message is when the network is started Is a message following the SUPL INIT message, or a message following the SUPL RESPONSE message, which is a response message when the SET is initiated.

The SUPL POS INIT message includes a "SET Capabilities" parameter indicating the capabilities of the SET, a "Requested Assistance Data" parameter indicating the required Global Positioning System assistance data, and a cell information of the SET. Information is used only when the "Location id" parameter, "Position" parameter, which indicates the position of the SET, and the Positioning Protocol allows the first message to be sent to the SET. And a "Ver" parameter including a "SUPLPOS" parameter and a hash of a SUPL INIT message.

In this regard, the "Ver" parameter in the Network Initiated Proxy Mode, the SET computes a hash of the received SUPL INIT message and should include the result of the hash in this parameter.

When the SUPL POS INIT message is transmitted from the destination SET to the SLP, the SLP performs a procedure such as transmitting and receiving a location tracking message with the destination SET, and when the location tracking of the destination SET is completed, the notification SET sends the location of the destination SET to the notification SET. Since information is transmitted, the SUPL POS message, which is a location tracking message, will now be described.

12 is a view showing an embodiment of a location tracking message according to the present invention, in particular a view showing an embodiment of the location tracking message SUPL POS message.

The SUPL POS message contains a "Positioning Payload" parameter to include basic TIA-801, RRLP or RRC elements, and a "Velocity" parameter indicating the velocity of the SET required to overcome the lack of information in RRLP and RRC In addition, the SLP and the destination SET perform location tracking of the destination SET while transmitting and receiving SUPL POS messages.

FIG. 13 is a diagram illustrating an embodiment of an end message according to the present invention. In particular, FIG. 13 illustrates one embodiment of a SUPL END message.

The SUPL END message is a message indicating the end of a SUPL process normally or abnormally.

Referring to FIG. 13, the SUPL END message includes a "Position" parameter including information indicating a position result of the SET, and a status of the message as an error indication or information indication. And a "Ver" parameter including a hash of the SUPL INIT message calculated by the SET.

In this regard, error indications in the "Status Code" field have values between 0 and 99, and information indications have values between 100 and 199, The "Ver" parameter should indicate situations when the SUPL END message is sent in direct response of the SUPL INIT message in Proxy Mode and Non Proxy Mode.

14 is a diagram illustrating an embodiment of an authentication response message according to the present invention, and in particular, illustrates an embodiment of a SUPL AUTH RESP message.

The SUPL AUTH RESP message is used for network initiated cases in non-proxy mode and is a message sent from the Home SLC to the SET to inform that the SET is allowed to continue the SUPL process. .

In addition, the SUPL AUTH RESP message includes an authentication key and a key identity used by the V-SPC, and is tunneled from the RLP message to the V-SLC.

In addition, the SUPL AUTH RESP message is required when an SPC Auth Key exists and an "SPC Auth Key" parameter indicating an authentication key used by the SET for SPC authentication, and includes a key identity. It comprises a "Key Identity 3" parameter and a "Status Code" parameter including information indicating the status of the message as an error indication (Information indication).

In this regard, error indications in the “Status Code” parameter have values between 0 and 99, and information indications have values between 100 and 199, The SUPL AUTH RESP message uses the "Status Code" parameter to indicate 'authNetFailure', which is an Authentication Failure.

FIG. 15 is a diagram illustrating an embodiment of a location tracking notification message according to an embodiment of the present invention. In particular, FIG.

The SUPL POS NOTIFICATION message is used to send the position information of the target SET to the notification SET. It is a 'Position' parameter indicating the position result of the target SET and a 'Target indicating the identity value of the target SET. It consists of SET Id '.

The present invention is applicable to both roaming and non-roaming regardless of the roaming state of the terminal, and the server is applied to both the proxy mode and the non-proxy mode. It is clear that the possibility is true.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the invention pertains, and such modifications are within the scope of the present invention.

The above-described effect of the method for transmitting location information according to the present invention provides an efficient and desirable method for the terminal user to transmit his current location information to another terminal user in the location information system, and defines a message for this purpose. The location information service used can be effectively provided.

Claims (15)

In the location information transmission method of a communication environment including a first terminal, a server, and a second terminal, Receiving a start message to start the location tracking process; After receiving the start message, performing location tracking procedure with the first terminal to obtain location information of the first terminal; And transmitting a message including the obtained location information to the second terminal. The method of claim 1, And the start message includes information for recognizing the second terminal that is notified of the location information of the first terminal. The method of claim 1, Acquiring the location information of the first terminal, Location information of the first terminal is obtained between the server and the first terminal using a location calculation method and a location tracking protocol agreed through messages transmitted and received by the server and the first terminal to perform the location tracking procedure. The location information transmission method, characterized in that obtaining. The method of claim 1, And the message including the location information includes information capable of recognizing the first terminal which is a location tracking target. The method of claim 1, And the message including the start message and the location information is a user plane protocol message. The method of claim 1, And the message including the location information is a location tracking notification message. The method of claim 1, Location information transmission method, characterized in that the message containing the location information is a mobile location protocol message. The method of claim 1, And the message including the location information is a short message service message. The method of claim 1, When the server is composed of a server manager and a location calculation unit, the first terminal directly communicates with the location calculation unit to obtain the location information of the first terminal, The server manager receives a start message including information for recognizing the first terminal, performs a location tracking procedure between the location calculator and the first terminal, and acquires location information of the first terminal; And a server manager transmits a message including the location information of the first terminal to the second terminal. In the method for transmitting location information of a communication environment including a first terminal, a second terminal, a home server, and a visited server, wherein the first terminal is located in the visited network, Transmitting a start message from the first terminal to the home server to start a location tracking procedure; Determining, by the home server, receiving the start message, to perform location tracking of the first terminal through the visited server; Performing location tracking procedure between the visited server and the first terminal to obtain location information of the first terminal and transmitting the location information obtained to the home server; And transmitting, by the home server receiving the location information, a message including the location information of the first terminal to the second terminal. The method of claim 10, If the notification server that is the network where the home server and the second terminal are located is different, The home server receiving the location information transmits the location information to the notification server, and the location information server transmits the location information to the second terminal. Way. In the first terminal, the second terminal, a home server, and a visit server comprising a server management unit and a location calculation unit, the first terminal is located in the visited network in the location information transmission method of the communication environment, Transmitting a start message from the first terminal to the home server to start a location tracking procedure; Determining, by the home server, receiving the start message, to perform location tracking of the first terminal through a server manager of the visited server; Performing a location tracking procedure between the location calculator of the visited server and the first terminal to obtain location information of the first terminal, and transmitting the obtained location information to a server manager of the visited server; Transmitting the location information from the server manager of the visited server to the home server; And transmitting, by the home server receiving the location information, a message including the location information to the second terminal. In the method for transmitting location information of a communication environment including a first terminal, a second terminal, a home server, and a visited server, wherein the first terminal is located in the visited network, Transmitting a start message from the first terminal to the home server to start a location tracking procedure; Determining, by the home server, receiving the start message, to perform location tracking of the first terminal; Obtaining location information of the first terminal by performing the location tracking procedure between the home server and the first terminal; And transmitting the message including the obtained location information to the second terminal. The method of claim 13, The home server having obtained the location information further comprises the step of transmitting the location information to the first terminal. In the first terminal, the second terminal, a home server consisting of a server management unit and a position calculation unit, and a visit server, comprising a location information transmission method of a communication environment in which the first terminal is located in the visited network, Transmitting a start message from the first terminal to a server management unit of the home server to start a location tracking procedure; Determining that the server manager of the home server receives the start message to perform the location tracking of the first terminal through the location calculator of the home server; Performing the location tracking procedure between the location calculator of the home server and the first terminal to obtain location information of the first terminal, and transmitting the obtained location information to a server manager of the home server; And a server manager of the home server receiving the location information, transmitting a message including the location information to the second terminal.

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