KR20070003305A - Verification method for positioning and positioning system - Google Patents

Abstract

A verification method for position tracking and a position tracking system are provided to allow a terminal to respond to position tracking verification according to options set by a terminal user, if the terminal user does not respond to a position tracking verification request, so as to track a position of the terminal user. A message which demands verification for position tracking is received from a server that receives a position tracking request(S10). According to preset options, either a position tracking allow message or a position tracking deny message is transmitted(S20,S30). If a terminal which demands position tracking is included in an 'Allowed on no answer' list, a position tracking allow message is transmitted, and if the terminal which demands the position tracking is included in a 'Denied on no answer' list, a position tracking deny message is transmitted(S50-S80).

Description

Verification method for positioning and positioning system

1 is a view illustrating an example of a location tracking system according to the present invention.

2 is a flowchart for explaining a method for confirming location tracking according to the present invention.

3 is a diagram illustrating an embodiment of an initialization message that is a network start message sent from a server to a terminal when a network of the present invention is started;

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

5A is a diagram illustrating an embodiment of a termination message according to the present invention;

5B is a diagram illustrating in detail an embodiment of a status code parameter of an end message according to the present invention;

* Explanation of symbols for main parts of the drawings

10: SUPL Agent 20: SLP

21: SLC 22: SPC

30: SET 40: SET user

The present invention relates to a location tracking system of mobile communication, and more particularly, when the terminal user fails to respond to the location tracking confirmation in the location information system, the terminal confirms the location tracking according to an option set by the terminal user in advance. The present invention relates to a method and an apparatus.

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 that tracks the location of a person or an object 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 information service 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 problem, a user-based protocol for providing a location information service in a user plane has been defined.

Since the user-based protocol transmits information necessary for positioning using a user plane, the user-based protocol is independent of the network structure and configures a location tracking system even if a service is updated or a new location tracking method is introduced. The advantage is that all network elements do not have to be updated.

However, when the terminal user fails to respond to the location confirmation request in the location tracking system of the user-based protocol, a preferable method for dealing with the location is not presented, which is a problem in performing the location tracking procedure.

The present invention is to solve the above problems, an object of the present invention is to determine the location tracking in accordance with a preset list when the terminal user does not respond to the location tracking confirmation request in the location information system of the user-based protocol To provide a way to perform a response.

In order to achieve the above object, the present invention comprises the steps of receiving a message requesting confirmation of the location tracking from the server receiving the location request, and according to a predetermined option, any one of the location permission message or location rejection message It provides a method for confirming the location, characterized in that comprising the step of transmitting a message of.

When the terminal requesting location tracking is included in the location tracking permission list, the present invention transmits a location tracking permission message, and when the terminal requesting location tracking is included in the location tracking rejection list, a location tracking rejection message. Characterized in that it further comprises the step of transmitting.

The present invention also provides a terminal for requesting location tracking, a server for requesting location tracking and a message for requesting location confirmation to a terminal targeted for location tracking, and receiving a location confirmation request message from the server. It provides a location tracking system comprising a terminal for transmitting a location tracking permission or location tracking rejection message.

Accordingly, according to the present invention, if the terminal user fails to respond to the location confirmation request in the location information system of the user-based protocol, the terminal user may perform the location confirmation in advance so that the terminal may perform location confirmation on behalf of the user. It is possible to set an option for the terminal, and according to the option information preset by the user, it is possible for the terminal to confirm the location of the terminal user by providing a response to the location confirmation confirmation for the user.

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, and "user-based protocol" means a protocol for providing location information service in a user plane.

In the present invention, as a user-based protocol, SUPL (Secure User Plane Location: hereinafter called '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 by using a SET (SUPL Enabled Terminal: hereinafter 'SET'), SUPL Agent as a terminal for convenience of description, but the technical concept of the present invention is equally applicable to other terminals. It will be self explanatory.

In relation to the present invention, the term "server" refers to an apparatus or program for operating a management software for controlling access to all or part of a communication network and access to resources of the communication network to another terminal or the like on a communication network. do.

In addition, the server (Server) is configured to include a "location calculation unit" for calculating the position of a specific terminal and a "server manager" for overall protocol management in the server.

In particular, SLP (SUPL Location Platform: SLP) as an embodiment of the server in relation to the present invention, SPC (SUPL Position Center: SPC) as the embodiment of the position calculation unit, As an example of the server management unit, an SLC (SUPL Location Center: hereinafter referred to as 'SLC') will be described as an example, but it is obvious that the present invention can be equally applicable to other servers.

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 the present invention, "initialization message" refers to a message that is first transmitted from the server to the terminal when the network starts, "location tracking initialization message" means a message to be sent for location tracking, "end message" is a specific A message indicating that the process has been completed.

In particular, the present invention will be described by taking a SUPL INIT message as the initialization message, a SUPL POS INIT message as the location tracking initialization message, and a SUPL END message as the end message, but the present invention is not limited to the above embodiment. It is obvious that the technical idea is applicable to other messages that are identical.

In addition, in the present invention, the "location tracking permission message" is a message transmitted when the location tracking is allowed for a location tracking request of a specific terminal user, and the "location tracking rejection message" is a location for a location tracking request of a specific terminal user. Note that this means sending a message if the trace is rejected.

1 is a view illustrating an example of a location tracking system according to the present invention.

In order to update the existing service or introduce a new location tracking method into the network, all network elements that need to be changed according to the change of the control plane, such as signaling and protocol of the control plane, In order to solve the problem that needs to be updated or newly introduced, the present invention will be described in the case of the SUPL protocol which is a protocol for providing location information service in the user plane.

The SUPL protocol is independent of the network structure because it transmits information necessary for positioning using a user plane, and a network configuring a location tracking system even if a service is updated or a new location tracking method is introduced. The advantage is that you do not have to update all the elements.

Referring to Figure 1, the location tracking system according to the present invention, the location tracking system may be configured to include a SET 30, SLP 20, and SUPL Agent (10).

The SET 30 is a terminal capable of communicating with the SUPL network using the SUPL protocol, for example, a user terminal (UE) of a universal mobile telecommunication system (UMTS), a global system for mobile communication (GSM), and an IS-95. It can be a mobile station (MS), a laptop supporting the SUPL protocol, and personal digital assistants (PDAs).

In addition, when the SET 30 receives a confirmation request for location tracking, the SET user 40 does not directly allow or deny the SET 30, the SET 30 replaces the SET user 40. Must respond to the confirmation request.

At this time, in the present invention, when the SET user 40 does not receive a response to the location confirmation request from the SET user 40 in advance through the user interface, the list permits the location tracking ("Allowed on"). no answer "list) and a" Denied on no answer "list that rejects location tracking when a response to the location confirmation request is not received.

In addition, a list for allowing location tracking ("Allowed on no answer" list) when the response to the location confirmation request is not received, and location tracking is rejected when the response to the location confirmation request is not received. If none of the "Denied on no answer" list is applicable, set the option to refuse location tracking by sending a message containing information to refuse location tracking, or send a message containing information to allow location tracking. The SET user 40 may set an option to allow the transfer location tracking.

The SLP 20 is a server that is a network element that accesses and uses network resources for location tracking of the SET 30. The SLP 20 represents a SUPL SAP (Service Access Point) of the network part, and the specific terminal SET 30 It is preferable to include an SPC 22, which is an entity that calculates the position information of the NPC, and an SLC 21, which is an entity that manages the overall SUPL protocol.

In this regard, the SET 30 may calculate position information by communicating with the SPC 22 through the SLC 21, which is called a proxy mode, and the SET 30 The case of calculating the location information by directly communicating with the SPC 22 is referred to as non-proxy mode.

The SUPL Agent 10 requests a location tracking service for a specific terminal from the SLP 20 and uses the location information transmitted from the SLP 20. In particular, the SUPL agent 10 represents a logical service access point (SAP). do.

In this regard, the SUPL Agent 10 transmits an MLP SLIR (Mobile Location Protocol Standard Location Immediate Request) message to the SLP 20 to request location information of a specific SET that wants to know location information.

Hereinafter, with reference to FIGS. 2 to 5B, a method of confirming location tracking of a SET, which is a terminal, will be described in detail.

Herein, the present invention is applicable regardless of whether the terminal is in a roaming state or not in a roaming state. However, when the roaming state, it is preferable to further include roaming checking.

2 is a flowchart illustrating a method for confirming location tracking according to the present invention.

First, a particular SET user 40 may respond to a location request if he or she is unable to respond to a location request, as well as a "Allowed on no answer" list. If you can't keep track of your location, set up a "Denied on no answer" list.

In addition, the specific SET user 40 is not registered in any of the lists when the user cannot respond, and the SUPL Agent 10 that wants to track the position of the specific SET user 40 is YES. For example, you can set an option to send a message that refuses tracking in all cases, or you can set an option to send a message that allows tracking in all cases.

In this regard, it is apparent that the option setting makes it clear that the SET user 40 can set the option in consideration of various cases.

Which message to send when the list is not registered in the list and the specific SET user 40 can be input in software via a user interface (UI) such as a keypad of the terminal of the specific SET 30 The control unit of the terminal, which is the specific SET 30 that receives the input, stores the list and the option information in the memory.

In this case, the list and the memory for the option may be set separately, or may be stored in the memory of the existing specific SET (30).

In this regard, in the present invention, the terminal receiving the location tracking and responding to the confirmation request may be referred to as "SET".

In particular, FIG. 2 requests the SET user to confirm the location tracking procedure when the SET 30 receives a SUPL INIT message from the SLP 20 with a Notification Type of "Notification and Verification." In addition, it is a diagram illustrating a procedure in which the SET 30 processes a response to the position tracking confirmation request.

At this time, the permission / rejection list ("Allowed on no answer" list and "Denied on no answer" list) for the location tracking request for the case where the SET user 40 is unable to respond, and registered in any of the lists The above description will be given on the assumption that the option for the situation that has not been set as described above is set in advance.

The SET 30 receives a SUPL INIT message including a notification type of "Notification and Verification" from the SLP 20 (S10). Hereinafter, an embodiment of a SUPL INIT message will be described with reference to FIG. 3.

3 is a view showing an embodiment of an initialization message which is a network start message sent from a server to a terminal when the network of the present invention starts, in particular, the present invention sends a SUPL INIT sent from the SLP 20 to the SET 30. A diagram illustrating an embodiment of a message.

The SUPL INIT message includes a "Positioning Method" parameter that indicates supported positioning technologies, and a "Notification" parameter that provides the SET 30 with information regarding LCS Notification and Privacy. And a " SLP Address " parameter containing an SLP address, " QoP " parameter indicating the Quality of Position, and an SLP mode in proxy mode or non-proxy mode. "MAC" including a "SLP Mode" parameter indicating whether the message is a mode and a Message Authention Code (MAC), which is used for integrity protection of SUPL INIT messages. And a "Key Identity" parameter indicating a key for identifying the MAC.

In particular, the "Notification" parameter indicates a notification and verification mechanism. The "Notification type" includes a "No notification and no verification" and a SET that do not require notification and verification. There are "Notification only" which requires only notifications without confirmation, "Notification and Verification" which requires both notifications and confirmations, and "Privacy override" which ignores both notifications and confirmations in an emergency and initiates location tracking.

When the SET 30 receives the SUPL INIT message, it examines the "Notification type" field and notifies the SET user 40 that a location tracking request has been received if notification and confirmation are required ("Notification and Verification"), Request confirmation of whether to allow or reject the tracking (S20).

SET 30 indicates Allow or Deny from SET user 40 for a certain time period (eg, 10 seconds, 20 seconds, 30 seconds, 1 minute, etc.) that can be set by the user. It is determined whether the response is received (S30).

As a result of the determination (S30), when the SET 30 receives a response from the SET user 40 within a predetermined time, it transmits a SUPL message (SUPL POS INIT or SUPL END) containing the response result to the SLP 20, and responds. Depending on the result, the location tracking process or location tracking is terminated (S40).

Therefore, when the SET 30 receives a response result from the SET user 40 to allow location tracking, the SET 30 transmits a SUPL POS INIT message to the SLP 20 or indicates a location permitting (Allow). Send a SUPL END message with a status code.

On the contrary, when the SET 30 receives a response result from the SET user 40 to reject the location tracking, the SET 30 sends a status code indicating the location tracking denial to the SLP 20. Transmits a SUPL END message with

In this regard, the SUPL POS INIT message will now be described with reference to FIG. 4 and the SUPL END message will be described with reference to FIGS. 5A and 5B.

4 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 cell information of the SET. The "SUPLPOS" parameter containing the "Location ID" parameter, the "Position" parameter indicating the position of the SET, the Positioning protocol payload, and the hash of the SUPL INIT message. Characterized in that configured to include a "Ver" parameter including.

When the SUPL POS INIT message is transmitted from the SET 30 to the SLP 20, the SLP 20 performs a procedure such as transmitting and receiving a message for location tracking with the SET 30, and the SET 30. When the location tracking is completed, the location information of the SET 30 is transmitted to the SUPL agent 10 requesting the location tracking.

5A is a diagram illustrating an embodiment of an end message according to the present invention, in which a SUPL END message is described among the end messages, wherein the SUPL END message indicates an end of a SUPL process normally or abnormally. Message.

The SUPL END message includes a "Position" parameter indicating the position result of the SET and a "Status Code" parameter indicating the status of the message as an error indication or information indication. It is composed.

In this regard, error indications have values between 0 and 99, and information indications have values between 100 and 199.

FIG. 5B is a view illustrating in detail an embodiment of a "Status Code" parameter, which is a status code parameter of an end message according to the present invention. In particular, the "Status Code" parameter, which is a status code in connection with the present invention, indicates an "Error" indicating an error. Indicator "and" Information Indicator "for displaying information. The" Information Indicator "includes a" consentDeniedByUser "for which the user refuses to approve a location determination session, and Location determination session), including a "consentGrantedByUser" to allow authorization.

Therefore, when the SET user 40 responds to the position tracking in step S40, the SPL END message transmitted from the SET 30 to the SLP 20 is information indicating the position tracking permission to the "consentGrantedByUser". It is transmitted including.

On the other hand, in step S40, when the SET user 40 responds to the location tracking rejection, the SUPL END message sent by the SET 30 to the SLP 20 to inform the "consentDeniedByUser" of the location tracking rejection It is sent with information.

As a result of the determination (S30), if the SET 30 does not receive a response from the SET user 40 within a predetermined time, the SET 30 may provide information indicating the SUPL Agent 10 requesting the location tracking (for example, a name). , Address, etc.) is included in the "Allowed on no answer" list, which is a list that allows location tracking when there is no response from the SET user 40 (S50).

As a result of the determination (S50), the information indicating the SUPL Agent 10 requesting the location tracking for the SET 30 is "Allowed on no answer" which is a list allowing the location tracking when the SET user 40 does not respond. If included in the list, the SET 30 transmits a SUPL POS INIT message indicating the location permission to the SLP 20 or a SUPL END message having a status code indicating the location permission (S60). .

As a result of the determination (S50), the information indicating the SUPL Agent 10 requesting the location tracking for the SET 30 is "Allowed on no answer" which is a list allowing the location tracking when the SET user 40 does not respond. If not included in the list, the SET 30 rejects the location tracking if information (eg, name, address, etc.) indicating the SUPL Agent 10 requesting the location tracking does not respond to the SET user 40. It is determined whether the list is included in the "Denied on no answer" list (S70).

As a result of the determination (S70), the information indicating the SUPL Agent 10 requesting the location tracking for the SET 30 is a list that rejects the location tracking when the SET user 40 does not respond. If included in the list, the SET 30 transmits a SUPL END message with a status code indicating a location tracking rejection to the SLP 20 (S80).

As a result of the determination (S70), the information indicating the SUPL Agent 10 requesting the location tracking for the SET 30 is a list that rejects the location tracking when the SET user 40 does not respond. If it is not included in the list, the SET 30 is located in the "Allowed on no answer" list and the "Denied on no answer" list when the SET user 40 does not respond. In case there is a tracking request, the SET user 40 checks an option (permission or rejection) set in advance (S90).

In relation to this, the options may be various. In another embodiment, information on SETs that allow location tracking is input to the "Allowed on no answer" list, and all SETs not entered in the "Allowed on no answer" list. Can be set to send a message that rejects location tracking.

In another embodiment of setting the option, information of SETs that refuse location tracking is input to the "Denied on no answer" list, and the location for all SETs that are not entered in the "Denied on no answer" list. You can set an option to send a message that allows tracking.

As a result of the determination (S90), if the option is Allow, the SET 30 transmits a SUPL POS INIT message indicating the location tracking permission to the SLP 20 or has a status code indicating the location tracking permission. The SUPL END message is transmitted (S100).

As a result of the determination (S90), if the option is Deny, the SET 30 transmits a SUPL END message having a status code indicating a location tracking rejection to the SLP 20 (S110).

Therefore, when the SET user fails to respond to the SUPL-based location confirmation request through the location tracking confirmation method and the location tracking system, the SET 30 performs the location confirmation on behalf of the SET user 40. Can be done.

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 effect of the method for performing the response to the location tracking confirmation according to the present invention described above is that if the terminal user fails to respond to the location tracking confirmation request in the location information system of the user-based protocol, the terminal confirms location tracking on behalf of the user. The terminal user may set an option for confirming the location tracking in advance, and the terminal provides a response to the location confirmation on behalf of the user in accordance with the option information preset by the terminal user to the location of the terminal user There is an advantage that it is possible to check.

Claims (12)

(a) receiving a message requesting confirmation of location tracking from a server receiving the location request; (b) transmitting a message of any one of a location permitting message and a location rejection message according to a preset option. The method of claim 1, In step (b), If the terminal requesting the location tracking is included in the location permission list, transmitting the location permission message; and if the terminal requesting the location tracking is included in the location reject list, transmitting the location rejection message; Confirmation method for location tracking, characterized in that further comprises. The method of claim 1, In step (b), If the terminal requesting location tracking is not included in the set list, the method for checking location tracking, characterized in that performed. The method according to claim 1 or 2, The location tracking permission message is a location tracking initialization message including location tracking permission information. The method according to claim 1 or 2, The location tracking permission message is an end message including location tracking permission information. How to check for tracking. The method according to claim 1 or 2, The location tracking rejection message is a confirmation method for location tracking, characterized in that the end message containing the location rejection information. The method of claim 1, The preset option is a method for confirming location, characterized in that for transmitting a location tracking permission message when the terminal requesting location tracking is not included in the set list. The method of claim 1, The preset option is a method for confirming location, characterized in that for transmitting a location tracking rejection message when the terminal requesting location tracking is not included in the set list. A terminal requesting location tracking, A server for receiving the location tracking request and transmitting a message requesting confirmation of location tracking to a terminal which is a location tracking target; And a terminal for receiving a location confirmation request message from the server and transmitting a location permit or location rejection message. The method of claim 9, And the terminal can communicate with a network using a user based protocol. The method of claim 10, The user-based protocol is a location tracking system, characterized in that the SUPL (Secure User Plane Location) protocol. The method of claim 9, The server comprises a location calculation unit for calculating the location information and a server management unit for managing the protocol comprising a.

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