KR100880258B1 - Method and System for Positioning Terminal Unequipped with Global Positioning System - Google Patents

Abstract

The present invention relates to a detailed positioning method and system for a terminal that does not have a satellite positioning system (GPS: Global Positioning System (GPS)).

According to the present invention, when a SUPL INIT (SUPL Initiation) message is received and a measurement of a location is requested, all parameters defined in cell information are forcibly measured and included in a location ID. A target SET (SUPL Enabled Terminal) for transmitting a location ID using a SUPL Positioning Initiation (SUPL POS INIT) message; When the SUPL initialization message is sent to the target SET to request the target SET to measure the position, and when the SUPL initialization message is received from the target SET, the position of the target SET is calculated using the location ID, and then the SUPL END is completed. A Home-SUPL Location Platform (H-SLP) for sending a message; And requesting the location of the target SET by sending an MLP SLIR (Mobile Location Protocol Standard Location Immediate Request) message to the H-SLP, and MLP SLIA (Mobile Location Protocol Standard) from the H-SLP. Location Immediate Answer) provides a detailed positioning system of a terminal that does not have a GPS, characterized in that it comprises a SUPL agent (SUPL Agent) for receiving the location of the target SET.

According to the present invention, the communication load of the H-SLP can be reduced, and the time required for measuring the position of the target SET can be reduced.

Position, measurement, OMA, SUPL, ID, SET, SLP

Description

Detailed positioning method and system for a terminal without a satellite navigation system {Method and System for Positioning Terminal Unequipped with Global Positioning System}

1 is a block diagram schematically showing a detailed positioning system of a terminal without a GPS according to a first embodiment of the present invention;

2 is a flowchart illustrating a detailed positioning method of a terminal without GPS according to the first embodiment of the present invention;

3 is a flowchart illustrating a detailed positioning method of a terminal without GPS according to a second embodiment of the present invention;

4A to 4B are exemplary diagrams illustrating a format of a message transmitted and received between an H-SLP and a target SET according to an exemplary embodiment of the present invention.

5A to 5E are exemplary diagrams for describing parameters of various messages used according to a preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: target SET 120: RAN

130: SGSN 140: H-SLP

150: SUPL agent

The present invention relates to a detailed positioning method and system for a terminal that does not have a satellite positioning system (GPS: Global Positioning System (GPS)). More specifically, in the positioning procedure according to Secure User Plane Location (SUPL), which is a standard standard for location-based services standardized by the International Mobile Organization for Standardization (OMA: Open Mobile Alliance (OMA)), In the 'SET'), all parameters defined in the cell information are compulsorily measured and collected as information on the location ID, and SLP (SUPL Location Platform) through the SUPL POS INIT message. ), The SLP calculates the position of the SET using the position ID, so that the position of the SET without GPS can be precisely measured, the network load is reduced, and the time for positioning the SET is reduced. It relates to a method and a system.

In general, in a mobile communication system, a mobile communication network includes a related function unit for calculating a location of a terminal, and provides a location service that delivers the location of the terminal to a predetermined entity periodically or on request. Doing.

The network structure related to the location service varies according to an internal network structure such as 3GPP (3rd Generation Partnership Project) or 3GPP2, and the method of calculating the position of the current UE transmits an ID of a cell to which the UE belongs. There is a cell-ID scheme, a method of calculating the position of the terminal using triangulation after measuring the time at which radio waves arrive from each terminal to adjacent base stations, and a method using GPS.

In order to provide a location service to a user, many signals and location information must be transmitted between a terminal and a server. Therefore, recently, standardized positioning technologies (Positioning Technologies) for providing location services have been developed, and one of these technologies is SUPL (Secure User Plane Location, SUPL) stipulated by OMA.

Typically, SUPL networks include SUPL Agents, SULP Location Platform (SLP), SUPL Enabled Terminal (SET), and the like. The SUPL agent is a logical service access point using the measured location information of the SET, and the SLP is a SUPL service access point of the network part that accesses network resources to obtain the location information of the SET. The SET is a device that can communicate with the SUPL network using the SUPL interface and supports the definition procedures in SUPL in conjunction with the network through a user plane bearer.

In the location information service, a network originally registered by a user is called a home network, and when a user moves and moves to an area other than the home network area, the network of the corresponding area is called a visited network. Therefore, the SLP in the home network is called H-SLP (Home-SLP), and the SLP in the visited network is called V-SLP (Visited-SLP).

As described above, when the SUPL procedure is started in the system for the location information service, that is, the location information service system, the SLP to which the external client first connects is called a requesting-SLP (R-SLP). As an individual, it may or may not be the same as the H-SLP.

In addition, a SET that targets the current position tracking is called a target SET. The SLP is a network component, and is composed of an SPC (SUPL Positioning Center), which is an entity for calculating an actual position, and an SPL (SUPL Location Center), which plays a role other than calculating position information. At this time, the SLC performs roaming and resource management.

Also, the location information service system has a proxy mode in which the SET calculates location information by communicating with the SPC through the SLC, and a non-proxy mode in which the SET opens a direct connection with the SPC to calculate the location information. ) Can be implemented.

Meanwhile, in order to measure the position of a SET in a conventional SUPL-based location information service system, a SURP Positioning Initiating Message is exchanged continuously between the SET and the SLP to use a session ID or a protocol to be used for tracking the location (RRLP, RRC or TIA-801) should be negotiated with each other, and as a result, there is a problem in that the load of the network, that is, the SLP increases, and the time for measuring the position of the SET increases.

In order to solve this problem, the present invention, in the positioning procedure according to SUPL, a standard standard for location-based services standardized by OMA, forcibly measures all parameters defined in cell information in the SET and collects them as information on location IDs. When the SLP is transmitted to the SLP through the SUPL POS INIT message, the position of the SET is calculated using the position ID in the SLP, so that the position of the SET without GPS can be precisely measured, the network load is reduced, and the position of the SET is reduced. Its main purpose is to provide a method and system for reducing the time to locate the system.

In order to achieve the above object, the present invention provides a system for positioning detailed positions of terminals that are not equipped with a Global Positioning System (GPS) based on the Secure User Plane Location (SUPL) protocol. When receiving a SUPL INIT (SUPL INitiation) message and requesting measurement of a location, all parameters defined in the cell information are forcibly measured and included in the location ID. A target SET (SUPL Enabled Terminal) for transmitting a location ID using a SUPL Positioning Initiation (SUPL POS INIT) message; When the SUPL initialization message is sent to the target SET to request the target SET to measure the position, and when the SUPL initialization message is received from the target SET, the position of the target SET is calculated using the location ID, and then the SUPL END is completed. A Home-SUPL Location Platform (H-SLP) for sending a message; And requesting the location of the target SET by sending an MLP SLIR (Mobile Location Protocol Standard Location Immediate Request) message to the H-SLP, and MLP SLIA (Mobile Location Protocol Standard) from the H-SLP. Location Immediate Answer) provides a detailed positioning system of a terminal that does not have a GPS, characterized in that it comprises a SUPL agent (SUPL Agent) for receiving the location of the target SET.

In addition, according to another object of the present invention, in the system for positioning the detailed position of the terminal that does not have a satellite positioning system (GPS: Global Positioning System (GPS) based on the Secure User Plane Location (SUPL) protocol) When a location measurement is requested by an application, a SUPL START message is sent to notify the start of a location measurement, and when a SUPL RESPONSE message is received, it is defined in cell information. A target SET (SUPL Enabled Terminal) for forcibly measuring all the parameters and including them in a Location ID, and transmitting the location ID using a SUPL Positioning Initiation (SUPL POS INIT) message; And when the SUPL start message is received from the target SET, sends a SUPL response message to the target SET, and when receiving a SUPL position initialization message from the target SET, calculates the position of the target SET using the location ID, and then ends SUPL with the target SET. It provides a detailed positioning system of a terminal that does not have a GPS, characterized in that it comprises a Home-SUPL Location Platform (H-SLP) for transmitting a (SUPL END) message to transmit the location of the target SET.

In addition, according to another object of the present invention, in a system including a target SET (Secure User Plane Location (SUPL) Enabled Terminal), H-SLP (Home-SUPL Location Platform) and SUPL Agent (SUPL Agent), SUPL protocol A method of positioning a detailed location of a terminal which does not have a satellite positioning system (GPS: hereinafter referred to as 'GPS') at the request of a SUPL agent, based on (a) the H-SLP from the SUPL agent Receiving an MLP SLIR (Mobile Location Protocol Standard Location Immediate Request) message and requesting location measurement of a target SET; (b) the H-SLP transmitting a SUPL INIT (SUPL INIT) message to the target SET; (c) the target SET receiving the SUPL initialization message to connect to the data network and authenticating the SUPL initialization message; (d) The target SET forcibly measures all parameters defined in the cell information and includes them in the location ID, and includes the location ID as SUPL POS INIT (SUPL Positioning Initiation). Transmitting to the H-SLP using the message; (e) the H-SLP receiving the SUPL location initialization message and calculating the location of the target SET using the location ID; And (f) H-SLP sending a Mobile Location Protocol Standard Location Immediate Answer (MLP SLIA) message to the SUPL agent to transmit the location of the target SET. It provides a detailed positioning method of a terminal that does not.

In addition, according to another object of the present invention, in a system including a target Secure User Plane Location (SUPL) Enabled Terminal (SUPL) and a Home-SUPL Location Platform (H-SLP), the satellite navigation system (GPS) based on the SUPL protocol A method of measuring a detailed position of a terminal that does not have a Global Positioning System (hereinafter, referred to as a 'GPS') according to a request of a target SET, wherein the target SET connects to a data network and starts SUPL with an H-SLP. Transmitting a (SUPL START) message; (b) the H-SLP sending a SUPL RESPONSE message to the target SET; (c) The target SET forcibly measures all parameters defined in the cell information and includes the location ID in the location ID, and the location ID is SUPL POS INIT (SUPL Positioning Initiation). Transmitting to the H-SLP using the message; (d) the H-SLP receiving the SUPL location initialization message and calculating the location of the target SET using the location ID; And (e) the H-SLP transmitting a SUPL END message to the target SET to transmit the location of the target SET.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In the following description of a preferred embodiment of the present invention, in a network performing communication based on the Secure User Plane Location (SUPL) protocol, a satellite navigation system (GPS) may be used according to a request of a specific device of the network. Hereinafter, the measurement of the position of the terminal (hereinafter referred to as 'Non GPS terminal') which is not provided with 'GPS' will be described as the first embodiment, and the position of the terminal is measured at the request of an application in the terminal. Will be described as a second embodiment.

In addition, in the following description of a preferred embodiment of the present invention, it is assumed that a data network of a network that performs communication based on the SUPL protocol is implemented as a wideband code division multiple access (WCDMA) system. However, this assumption is merely for convenience of description, and the present invention may be applied to a case where a data network of a network that performs communication based on the SUPL protocol is implemented as a CDMA system.

1 is a block diagram schematically illustrating a detailed positioning system of a non-GPS terminal according to a first embodiment of the present invention.

Detailed positioning system of the non-GPS terminal according to the first embodiment of the present invention is a target set (Target SET: Target SUPL Enabled Terminal, hereinafter referred to as 'target SET', 110), Radio Access Network (RAN) RAN ', 120), Serving GPRS Support Node (SGSN) (hereinafter referred to as' SGSN ', 130), Home-SUPL Location Platform (H-SLP),' H- SLP ', 140) and SPL Agent (SUPL Agent, hereinafter referred to as' SUPL Agent', 150).

The target SET 110 is a terminal that communicates with the SUPL network using the SUPL protocol. The target SET 110 supports procedures defined by SUPL in association with the network through a user plane bearer. Here, the target SET 110 may be a user equipment (UE) when the data network is implemented as a Universal Mobile Telecommunications System (UMTS) system, and the data network is a GSM (Global System for Mobile) system. When implemented as a communication system, a code division multiple access (CDMA) system, or a wideband CDMA (W-CDMA) system, it may be a mobile station (MS), and a laptop computer having other SET functions (Laptop). Computer), personal digital assistants (PDAs), and the like.

When the target SET 110 according to the first embodiment of the present invention receives a SUPL initialization (SUPL INIT) message from the H-SLP 140 and receives a position measurement request, the RAN Access the data network composed of the 120 and SGSN 130, etc. to authenticate the SUPL INIT message, and forcibly measure all parameters defined in the cell information and include them in the location ID. The ID is transmitted to the H-SLP 140 using a SUPL Positioning Initiation (SUPL POS INIT) message, and the SUPL end (SUPL END, When receiving the message 'SUPL END'), the session connected to the H-SLP 140 is released through the data network.

The RAN 120 includes a radio transceiver subsystem (RTS) as a radio transmitter that accommodates a radio access standard of 3GPP (3rd Generation Partnership Project) standard in a WCDMA scheme and a radio network controller (RNC) as a radio control station.

SGSN 130 has an Asynchronous Transfer Mode (ATM) -based switch and routing structure to provide GPRS, and GPRS mobility management function and GPRS session management for processing various data services. Functions, GPRS authentication and billing functions.

In the present invention, a network providing a data communication service including the RAN 120 and the SGSN 130 is called a data network. The data network connects a session for data communication between the target SET 110 and the H-SLP 140 so as to perform data communication between the target SET 110 and the H-SLP 140.

The H-SLP 140 is a SUPL service access point of a network that accesses network resources to obtain location information in a network based on the SUPL protocol, and is a SUPL location calculating a location information. SUPL Positioning Center (SPC) and SUPL Location Center (SLC) that performs roaming and resource management.

The H-SLP 140 according to the first embodiment of the present invention receives an MLP SLIR (Mobile Location Protocol Standard Location Immediate Request, MLP SLIR) message from the SUPL agent 150. When the position information of the target SET 110 is requested, a SUPL INIT message is transmitted to the target SET 110 to request the target SET 110 to measure a position, and receive a SUPL POS INIT message from the target SET 110. After calculating the location of the target SET 110 using the location ID, a SUPL END message is transmitted, and the MLP SLIA (Mobile Location Protocol Standard Location Immediate Answer, hereinafter) is sent to the SUPL agent 150. MLP SLIA ') to transmit the location information of the target SET (110).

The SUPL agent 150 is a logical service access point using the location information of the target SET 110. The SUPL agent 150 requests and receives the location information of the target SET 110 from the H-SLP 140, and then receives the received target SET. The device 110 applies location information to various services.

The SUPL agent 150 according to the first embodiment of the present invention transmits an MLP SLIR message to the H-SLP 140 to request location information of the target SET 110, and receives an MLP SLIA message from the H-SLP 110. Receive position information of the target SET (110) using.

2 is a flowchart illustrating a detailed positioning method of a terminal without a GPS according to the first embodiment of the present invention.

In a network performing communication based on the SUPL protocol, the SUPL agent 150, which intends to provide various services using the location information of the target SET 110, may use the H-SLP () to obtain the location information of the target SET 110. In operation S210, an MLP SLIR message requesting position measurement of the target SET 110 is transmitted to the processor 140. At this time, the MLP SLIR message includes an MS ID (Mobile Station ID) for specifying the target SET 110, a Client ID for identifying itself for requesting the location information, and a QoP for setting the quality of the measured location information. (Quality of Positioning) and the like.

Receiving the MLP SLIR message, the H-SLP 140 checks previously stored routing information to determine whether the target SET 110 roams and whether the target SET 110 supports the SUPL protocol. When the target SET 110 has not roamed and supports the SUPL protocol, a short message service trigger (SMS) or wireless push protocol (WAP Push) may be used. The SUPL INIT message is transmitted to the target SET 110 (S230).

At this time, the SUPL INIT message typically includes a session ID, a positioning method, and an SLP mode. Herein, the H-SLP 140 sets the session ID, the SLP mode, and the positioning method, which are representative parameters of the SUPL INIT message, to the 'target SET 110 and the set session ID' and the 'substitute mode', respectively. Proxy Mode 'and' Enhanced Forward Link Trilateration '(EFLT), and the remaining parameters are Quality of Positioning (QoP), address of H-SLP 140, Key ID and MAC. ) And the like are set in a conventional manner.

The target SET 110 receiving the SUPL INIT message from the H-SLP 140 connects to the data network to authenticate the SUPL INIT message using the key ID and the MAC to access the H-SLP 140 (S240). , Positioning Technology, which is a parameter of SET Capability, is' EFLT ', Preferred Method is' No Preferred', and Positioning Protocol is' 0 (Zero). ) ', And collects information about the location ID (S250).

At this time, the location ID collected by the target SET 110 includes radio technology, that is, different information according to the type of the mobile communication system constituting the data network. That is, when the mobile communication system constituting the data network is a WCDMA system, all parameters defined in the WCDMA cell information are mandatory in the location ID, so that Serving UE Rx-Tx Time Difference 2, NUM_PILOT_P, If the mobile communication system constituting the data network is a CDMA system including PSC_NO, EcNo, Target UE Rx-Tx Time Difference2, and the like, all parameters defined in the CDMA cell information are mandatory in the location ID and NUM_Pilot_P , RESOLUTION, PN_PHASE, PILOT_STRENGTH and so on.

The target SET 110 that collects the information on the location ID includes the information on the location ID collected in the SUPL POS INIT message and transmits the information to the H-SLP 140 (S260). At this time, the SUPL POS INIT message includes session ID, location ID, and SET capability.

Upon receiving the SUPL POS INIT message, the H-SLP 140 checks the designated SET capability and, when the positioning method is set to EFLT, calculates the position of the target SET 110 using the location ID, and then sets the target SET to the EFLT. The target position 110 is calculated (S270), the SUPL END message is sent to the target SET 110 (S280), the session set with the target SET 110 is released, and the target SET 110 receives the SUPL END message. Also releases the session established with the H-SLP 140.

The H-SLP 140, which has sent the SUPL END message to the target SET 110, transmits the MLP SLIA message to the SUPL agent 150 to measure the position information of the target SET 110, that is, the location information. Transmit to 150 (S290).

In the above description, when the location information of the target SET 110 is requested from the SUPL agent 150, which is a specific device of a network that performs communication based on the SUPL protocol, the target SET (Non-GPS terminal) may be used. The configuration of the system for measuring the detailed position of 110) and the detailed method using the same have been described as the first embodiment.

In the conventional method of measuring the position of the terminal using the SUPL protocol defined by the Mobile International Standardization Organization (OMA: hereinafter referred to as 'OMA'), the target SET 110 is connected to the data network as in step S240 described above. After accessing, after the SUPL POS INIT message is sent to the H-SLP 140 to start the procedure related to the position measurement, the target SET 110 and the H-SLP 140 perform a plurality of consecutive to perform the position tracking. The position of the target SET 110 is measured by exchanging normal messages with each other. Thus, the load of the network (particularly, the H-SLP 140) is exchanged while exchanging consecutive messages between the target SET 110 and the H-SLP 140. Load) increases, and the time required for measuring the position is very long.

However, according to the present invention, before transmitting the SUPL POS INIT message in the target SET 110, all parameters included in the cell information are forcibly measured and collected, and then included in the location ID to use the SUPL POS INIT message. When transmitting to the SLP 140, the H-SLP 140 measures the position of the target SET 110 using the information included in the location ID, so that the target SET 110 and the H to measure the position substantially. The SLP 140 only needs to transmit / receive a SUPL POS INIT message.

Therefore, according to the present invention, not only can reduce the communication load of the H-SLP 140, there is an advantage that can significantly reduce the time required to measure the position of the target SET (110).

Hereinafter, when the target SET 110 requests location information by the application of the terminal in the network performing communication based on the SUPL protocol through FIG. 3, the target SET 110 is a non-GPS terminal. The configuration of the system for measuring the detailed position of the c) and the detailed method using the same will be described as the second embodiment.

Detailed positioning system of the Non GPS terminal according to the second embodiment of the present invention is the same as or similar to the detailed positioning system of the Non GPS terminal according to the second embodiment of the present invention described with reference to FIG.

However, in the second embodiment of the present invention, since the target SET 110 requests location information by itself, the target SET 110 becomes a SUPL agent by itself, and thus does not include the GPS according to the second embodiment of the present invention. The detailed positioning system of the terminal does not include the SUPL agent 150 described above with reference to FIG. 1.

In addition, the target SET 110 and the H-SLP 140 according to the second embodiment of the present invention have the target SET 110 according to the second embodiment of the present invention described above with reference to FIG. And H-SLP 140, but a detailed description thereof will be described in detail with respect to the non-GPS terminal positioning method according to a second embodiment of the present invention to be described with reference to FIG. Instead of

3 is a flowchart illustrating a detailed positioning method of a non-GPS terminal according to a second embodiment of the present invention.

In a non-GPS terminal supporting communication using the SUPL protocol, if a specific application needs the location information of the terminal, the non-GPS terminal becomes the target SET 110 and accesses the data network (S310), and the H-SLP ( 140, a SULP START message is transmitted (S320) to notify the start of the position measurement. At this time, the target SET 110 sets the session ID and the SET capability as the main parameters of the SULP START message. The session ID is set to the session ID assigned when connecting to the data network, and the positioning technology of the SET capability is set to 'EFLT'. The preferred method is set to 'no preferred method' and the positioning protocol is set to '0'.

Upon receiving the SUPL START message, the H-SLP 140 checks previously stored routing information (S330) to determine whether the target SET 110 roams, and if the target SET 110 does not roam, the SUPL START As a response to the message, a SUPL response (SUPL RESPONSE, hereinafter referred to as 'SUPL RESPONSE') message is transmitted to the target SET 110 (S340). At this time, the H-SLP 140 checks that the target SET 110 is a Non-GPS terminal by referring to the SET capability of the SUPL START message, and recognizes that the target SET 110 does not establish a new connection. It is preferable not to include the address of the H-SLP 140 in the SUPL RESPONSE message. In addition, the H-SLP 140 sets and transmits a session ID and a positioning method as parameters in a SUPL RESPONSE message. The positioning method is set to 'EFLT'.

Upon receiving the SUPL RESPONSE message, the target SET 110 sets the positioning capability of the SET capability to 'EFLT', the preferred method to 'no preferred method', and the positioning protocol to '0', and collects information on the location ID. (S350). At this time, the location ID collected by the target SET 110 includes radio technology, that is, different information according to the type of the mobile communication system constituting the data network. That is, when the mobile communication system constituting the data network is a WCDMA system, all parameters defined in the WCDMA cell information are mandatory in the location ID, so that Serving UE Rx-Tx Time Difference 2, NUM_PILOT_P, If the mobile communication system constituting the data network is a CDMA system including PSC_NO, EcNo, Target UE Rx-Tx Time Difference2, and the like, all parameters defined in the CDMA cell information are mandatory in the location ID and NUM_Pilot_P , RESOLUTION, PN_PHASE, PILOT_STRENGTH and so on.

The target SET 110 which collects the information on the location ID includes the information on the location ID collected in the SUPL POS INIT message and transmits the information to the H-SLP 140 (S360). At this time, the SUPL POS INIT message includes session ID, location ID, and SET capability.

Upon receiving the SUPL POS INIT message, the H-SLP 140 checks the designated SET capability and, when the positioning method is set to EFLT, calculates the position of the target SET 110 using the location ID, and then sets the target SET to the EFLT. The position of 110 is calculated (S370), and the SUPL END message is transmitted to the target SET 110 (S380), and the information about the measured position of the target SET 110, that is, the position information is converted into the target SET 110. Send to In addition, the H-SLP 140 releases the session established with the target SET 110, and the target SET 110 receiving the SUPL END message also releases the session established with the H-SLP 140.

Even when using the detailed positioning method and system for a non-GPS terminal according to the second embodiment of the present invention described above with reference to FIG. 3, as described above with reference to FIGS. 1 and 2, a mobile international standardization organization (OMA: It is possible to reduce the load of the H-SLP 140, and to measure the position of the target SET 110 than the conventional method of measuring the position of the terminal using the SUPL protocol prescribed in "OMA") This has the advantage of reducing the time it takes. As described above, the target SET 110 forcibly measures and collects all parameters included in the cell information before transmitting the SUPL POS INIT message, and then includes the location ID in the location ID to use the H-POS INIT message. When transmitting to the SLP 140, the H-SLP 140 measures the position of the target SET 110 using the information included in the location ID, so that the target SET 110 and the H- are substantially used to measure the position. This is because only the SUPL POS INIT message needs to be transmitted and received between the SLPs 140.

Hereinafter, a format of a message transmitted and received between the H-SLP 140 and the target SET 110 according to an exemplary embodiment of the present invention will be described with reference to FIGS. 4A through 4E.

4A to 4B are exemplary diagrams illustrating a format of a message transmitted and received between an H-SLP and a target SET according to an exemplary embodiment of the present invention.

4A is an exemplary diagram illustrating a format of a SUPL INIT message.

The H-SLP 140 transmits a SUPL INIT message to inform the target SET 110 that a position measurement has been requested. At this time, the SUPL INIT message transmitted and received includes a positioning method and an SLP mode as shown. ) Parameters are essentially included, and the parameters of the remaining notification, SLP address, QoP, MAC, and Key ID are optionally included. Here, according to the conventional OMA SUPL regulations, 'EFLT' is not included as the positioning method, but 'EFLT' may be used as the positioning method in the present invention.

4B is an exemplary diagram illustrating a format of a SUPL POS INIT message.

The target SET 110 collects information on the location ID, and then transmits a SUPL POS INIT message to the H-SLP 140. At this time, the SUPL POS INIT message transmitted and received is SET capability and location ID (Location). Parameter of ID), and optional parameter of Ver. Here, the SET capability is a parameter for indicating information about the capability of the target SET 110, and the location ID is a parameter for indicating information on a cell where the target SET 110 is located, and includes various kinds of information. do.

4C is an exemplary diagram illustrating a format of a SUPL STAR message.

The target SET 110 transmits a SUPL START message to the H-SLP 140 when it requests location information by itself, and the SUPL START message transmitted and received essentially includes parameters of the SET capability and the location ID.

4D is an exemplary diagram illustrating a format of a SUPL RESPONSE message.

When the H-SLP 140 receives the SUPL START message from the target SET 110, the H-SLP 140 transmits a SUPL RESPONSE message to the target SET 110 in response to the SUPL RESPONSE message. And optionally include parameters such as an SLP address, a SET Auth Key, and a Key Identity. Here, according to the conventional OMA SUPL regulations, 'EFLT' is not included as the positioning method, but 'EFLT' may be used as the positioning method in the present invention.

4E is an exemplary diagram illustrating a format of a SUPL END message.

The H-SLP 140 calculates the position of the target SET 110 and then transmits a SUPL END message to the target SET 110. At this time, the SUPL END message transmitted and received is position and status code. It may optionally include parameters such as version. Here, the positioning parameter represents the result of measuring the position of the target SET 110, and the parameter of the status code represents the status of the message as an error or information.

Hereinafter, various parameters of the message used in the present invention will be described with reference to FIGS. 5A to 5E.

5A to 5E are exemplary diagrams for describing parameters of various messages used according to a preferred embodiment of the present invention.

5A is an exemplary diagram for explaining parameters of a positioning method.

The parameters of the positioning method may be set to zero or one or more of various positioning methods as parameters that must be included in the message used. As various positioning methods, according to the regulations of OMA SUPL, A GPS SET Assisted to Observed Time Difference of Arrival (OTDOA) and the like may be used, but according to the present invention, EFLT may also be used.

5B is an exemplary diagram for explaining a parameter of SET capability.

The parameter of the SET capability essentially includes a positioning technique, a preferred method, a positioning protocol, and the like. As the positioning technique, the EFLT may be used in the present invention as the positioning method, and the preferred method may set one of the presented preferred methods as shown. The positioning protocol may be set or one or more of the protocols presented.

5C is an exemplary diagram for explaining a parameter of a location ID.

The parameter of the location ID essentially includes cell information and status. In the case of cell information, the WCDMA system or the type of the CDMA system depends on the type of the system in which the network communicating based on the SUPL protocol is implemented. It may be set differently depending on. In the case of a state, it represents the measurement time of cell information.

5D is an exemplary diagram for explaining WCDMA cell information.

Parameters of WCDMA cell information include Mobile Country Code (MCC), Mobile Network Code (MNC), UC-ID (RNC-ID or Cell-ID), Frequency Information, Note Although general information such as a scrambling code (PSC: Primary Scrambling Code) is essentially included, in the present invention, Serving UE Rx-Tx Time Difference 2, which is a relative distance (ie, an Observed Time Difference (OTD)) from the terminal to the serving base station, NUM_PILOT_P, which is the number of neighbor base station signals collected from the UE, PSC_NO, which is the number of PSC, EcNo, which is an Ec / No of a common pilot channel (CPICH), and a target UE Rx, which is a relative distance (OTD) from the terminal to a target base station. -Tx Time Difference2 is additionally required.

5E is an exemplary diagram for explaining CDMA cell information.

The parameters of the WCDMA cell information are system ID (SID: System ID), network ID (NID: Network ID), base station ID (Base ID), base station latitude (BASELAT: Base Latitude), base station longitude (BASELONG: Base Longitude), base station Although it is essential to include general information such as a reference PN number (REPN), in the present invention, NUM_Pilot_P, which is the number of neighboring base station signals collected from the UE, RESOLUTION, which is the sharpness of PN_PHASE, PN_PHASE, which is a pilot measurement PHASE, and pilot strength, PILOT_STRENGTH is additionally required.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, before transmitting the SUPL POS INIT message in the target SET, all parameters included in the cell information are forcibly measured and collected, and then included in the location ID to use the SUPL POS INIT message. When transmitting to the SLP, since the H-SLP measures the position of the target SET using the information included in the location ID, only the SUPL POS INIT message needs to be transmitted and received between the target SET and the H-SLP to measure the position. Therefore, it is possible to reduce the communication load of the H-SLP and to reduce the time required to measure the position of the target SET.

Claims (17)

In a system for positioning the detailed location of a terminal that does not have a satellite positioning system (GPS: Global Positioning System (GPS)) based on the Secure User Plane Location (SUPL) protocol, Upon receiving a SUPL INIT (SUPL INITation) message and requesting measurement of the location, all parameters defined in the Cell Information are forcibly measured and included in the Location ID. A target SET (SUPL Enabled Terminal) for transmitting the position ID using a SUPL Positioning Initiation (SUPL POS INIT) message; Sending the SUPL initialization message to the target SET to request the target SET to measure the position, and upon receiving the SUPL position initialization message from the target SET, calculate the position of the target SET using the location ID. A Home-SUPL Location Platform (H-SLP) for transmitting a SUPL END message; And Send a Mobile Location Protocol Standard Location Immediate Request (MLP SLIR) message to the H-SLP to request the location of the target SET, and from the H-SLP, MLP SLIA (Mobile Location) A SUPL Agent that receives the Protocol Standard Location Immediate Answer) message and receives the location of the target SET. Detailed positioning system of a terminal that does not have a GPS, characterized in that it comprises a. In a system for positioning the detailed location of a terminal that does not have a satellite positioning system (GPS: Global Positioning System (GPS)) based on the Secure User Plane Location (SUPL) protocol, When a position measurement is requested by an application, a SUPL START message is sent to notify the start of the position measurement, and when a SUPL RESPONSE message is received, the SUPL START message is defined in Cell Information. A target SET (SUPL Enabled Terminal) for forcibly measuring all parameters and including them in a Location ID, and transmitting the location ID using a SUPL Positioning Initiation (SUPL POS INIT) message; And When the SUPL start message is received from the target SET, the SUPL response message is transmitted to the target SET, and when the SUPL position initialization message is received from the target SET, the position of the target SET is calculated using the location ID. H-SLP (Home-SUPL Location Platform) for transmitting a SUPL END message to the target SET to transmit the location of the target SET. Detailed positioning system of a terminal that does not have a GPS, characterized in that it comprises a. The method according to claim 1 or 2, wherein the H-SLP is, A detailed positioning system of a terminal without GPS, characterized in that the position of the target SET is calculated using Enhanced Forward Link Trilateration (EFLT). The method according to claim 1 or 2, wherein the cell information, If the system is a WCDMA system, a detailed positioning system of a terminal without a GPS, characterized in that it comprises a Serving UE Rx-Tx Time Difference 2, NUM_PILOT_P, PSC_NO, EcNo and Target UE Rx-Tx Time Difference2. The method according to claim 1 or 2, wherein the cell information, If the system is a CDMA system, the detailed positioning system of the terminal without a GPS, characterized in that it comprises NUM_Pilot_P, RESOLUTION, PN_PHASE and PILOT_STRENGTH. In a system including a target Secure User Plane Location (SUPL) Enabled Terminal (SUPL), Home-SUPL Location Platform (H-SLP) and SUPL Agent (SUPL Agent), the Global Positioning System (GPS) is based on the SUPL protocol. In the method for positioning the detailed location of the terminal that does not have a "GPS" (hereinafter referred to as the request of the SUPL agent), (a) the H-SLP receiving a Mobile Location Protocol Standard Location Immediate Request (MLP SLIR) message from the SUPL agent and requesting location measurement of the target SET; (b) the H-SLP transmitting a SUPL INIT (SUPL INIT) message to the target SET; (c) the target SET receiving the SUPL initialization message to access a data network and authenticating the SUPL initialization message; (d) The target SET forcibly measures all parameters defined in cell information and includes them in a location ID, and includes the location ID in SUPL POS INIT. Transmitting to the H-SLP using an Initiation) message; (e) the H-SLP receiving the SUPL location initialization message and calculating a location of the target SET using the location ID; And (f) the H-SLP transmitting a location of the target SET by sending a Mobile Location Protocol Standard Location Immediate Answer (MLP SLIA) message to the SUPL agent; Detailed positioning method of a terminal that does not have a GPS, characterized in that it comprises a. The method of claim 6, wherein in step (b), The SULP initialization message includes a positioning method as a parameter, and the positioning method is EFLT (Enhanced Forward Link Trilateration). The method of claim 6, wherein the method is After step (c), (c1) The target SET is each parameter of SET capabilities, the Positioning Technology is EFLT, the Preferred Method is No Preferred, and the Positioning Protocol is Protocol) further comprises the step of setting to zero (Zero). The method of claim 6, wherein in step (d), Wherein the cell information is a WCDMA system, the detailed positioning of the terminal without GPS, characterized in that it includes Serving UE Rx-Tx Time Difference 2, NUM_PILOT_P, PSC_NO, EcNo and Target UE Rx-Tx Time Difference2 Way. The method of claim 6, wherein in step (d), And the cell information includes NUM_Pilot_P, RESOLUTION, PN_PHASE, and PILOT_STRENGTH when the system is a CDMA system. The method of claim 6, wherein in step (e), The H-SLP detailed positioning method of the terminal having no GPS, characterized in that for calculating the position of the target SET in the Enhanced Forward Link Trilateration (EFLT) method. In a system including a target Secure User Plane Location (SUPL) Enabled Terminal (SUPL) and a Home-SUPL Location Platform (H-SLP), the Global Positioning System (GPS) is referred to based on the SUPL protocol. In the method for measuring the detailed position of the terminal that does not have a) according to the request of the target SET, (a) the target SET accessing a data network and sending a SUPL START message to the H-SLP; (b) the H-SLP sending a SUPL RESPONSE message to the target SET; (c) The target SET forcibly measures all parameters defined in cell information and includes them in a location ID, and includes the location ID in SUPL POS INIT. Transmitting to the H-SLP using an Initiation) message; (d) the H-SLP receiving the SUPL location initialization message and calculating a location of the target SET using the location ID; And (e) the H-SLP transmitting a SUPL END message to the target SET to transmit the location of the target SET; Detailed positioning method of a terminal that does not have a GPS, characterized in that it comprises a. The method of claim 12, wherein in step (b), The SULP response message includes a positioning method as a parameter, and the positioning method is enhanced forward link trilateration (EFLT). The method of claim 12, wherein the method is After step (b), (b1) The target SET is each parameter of SET Capabilities, Positioning Technology is EFLT, Preferred Method is No Preferred, and Positioning Protocol. Protocol) further comprises the step of setting to zero (Zero). The method of claim 12, wherein in step (c), Wherein the cell information is a WCDMA system, the detailed positioning of the terminal without GPS, characterized in that it includes Serving UE Rx-Tx Time Difference 2, NUM_PILOT_P, PSC_NO, EcNo and Target UE Rx-Tx Time Difference2 Way. The method of claim 12, wherein in step (c), And the cell information includes NUM_Pilot_P, RESOLUTION, PN_PHASE and PILOT_STRENGTH when the system is a CDMA system. The method of claim 12, wherein in step (d), The H-SLP detailed positioning method of the terminal having no GPS, characterized in that for calculating the position of the target SET in the Enhanced Forward Link Trilateration (EFLT) method.

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