JP2017003472A - Server, control method thereof and control program thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a server or the like capable of easily discriminating a positioning protocol supported by a mobile terminal among a plurality of positioning protocols. A control method according to the present invention targets a positioning request signal according to a first protocol when a positioning request instruction signal including terminal identification information of a target mobile terminal to be positioned is received from another device. When it is transmitted to the mobile terminal and the first response signal indicating normality is received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the first protocol, and the second response signal indicating that the version is incorrect is used. When received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the second protocol, and when the first response signal or the second response signal is not received from the target mobile terminal within a predetermined time, the target mobile terminal is used. The third protocol is determined to be supported by the mobile terminal, and the positioning of the target mobile terminal is controlled according to the determined protocol. [Selection diagram] Fig. 1

Description

  The present invention relates to a server, a control method thereof, and a control program thereof.

  In recent years, a GPS (Global Positioning System) positioning function is being standardly installed in various mobile terminals such as mobile phones, tablet terminals, and portable game machines. When a mobile terminal supports a specific protocol used for positioning (hereinafter referred to as “positioning protocol”) and receives a positioning request signal requesting execution of positioning according to the positioning protocol, the mobile terminal performs positioning processing. Run.

  For example, Patent Document 1 describes a positioning method in which a mobile terminal acquires information necessary for positioning processing of the mobile terminal from a server via a network using SUPL (Secure User Plane Location). In Patent Document 1, SUPL 1.0 defined by OMA (Open Mobile Alliance) is a protocol used for positioning between a mobile terminal and a server, and the protocol used for positioning is SUPL2. 0.0 is described.

Japanese Patent No. 5583169

  When the mobile terminal receives a positioning request signal according to a positioning protocol that is not supported, the mobile terminal cannot execute the positioning process. Further, as described in Patent Document 1, even if the positioning protocol shifts from OMA SUPL 1.0 to OMA SUPL 2.0, OMA SUPL 1.0 is supported for all portable terminals that currently support OMA SUPL 1.0. A program or firmware cannot be updated to support SUPL 2.0. Therefore, a mobile terminal that supports OMA SUPL1.0 and a mobile terminal that supports OMA SUPL2.0 are mixed on the communication network.

  Therefore, the server needs to determine a positioning protocol supported by the positioning target mobile terminal from among a plurality of positioning protocols, and transmit a positioning request signal corresponding to the determined positioning protocol to the mobile terminal. . For example, the server can determine the positioning protocol supported by each mobile terminal by managing support information indicating which positioning protocol each mobile terminal supports. However, when managing support information for each mobile terminal, the administrator needs to register the support information for each mobile terminal, which increases the amount of work and work costs.

  The present invention has been made to solve such a problem, and can easily determine a positioning protocol supported by a mobile terminal among a plurality of positioning protocols, a control method thereof, and a control thereof. The purpose is to provide a program.

  A control method according to the present invention is a method for controlling a server including a storage unit, and is different in version from the first protocol and the first protocol used for positioning of a mobile terminal, and has the same telegram format. Storing in a storage unit each terminal identification information of a plurality of portable terminals that are positioned according to any one of a second protocol and a third protocol having a version and a version of a message format different from the first protocol; When a positioning request instruction signal including terminal identification information of a target mobile terminal to be positioned is received from another device, a positioning request signal according to the first protocol is transmitted to the target mobile terminal, and a first response indicating normality If a signal is received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the first protocol, When the second response signal indicating that the mobile phone is incorrect is received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the second protocol, and the first response signal or the second response signal is determined within a predetermined time. If not received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the third protocol, and the positioning of the target mobile terminal is controlled according to the determined protocol.

  In the control method according to the present invention, the contract information indicating the communication contract for each mobile terminal is stored in the storage unit, and when the positioning request instruction signal is received, the communication contract related to the target mobile terminal only includes the first protocol. It is determined whether the contract is a predetermined contract to be supported, and only when it is determined that the communication contract is not the predetermined contract, the protocol supported by the target mobile terminal is determined according to the determination process, and the communication contract is the predetermined contract When it is determined that, the protocol supported by the target portable terminal is preferably determined as the first protocol.

  In the control method according to the present invention, the determined protocol is further stored in the storage unit in association with the target mobile terminal, and when the positioning of the target mobile terminal is controlled next, the protocol stored in the storage unit is used as the target mobile terminal. It is preferable to determine the protocol supported by.

  In the control method according to the present invention, for each of the first protocol and the second protocol, the number of portable terminals that support each protocol is stored in the storage unit, and in the transmission, the number of sales is replaced with the first protocol. It is preferable to transmit a positioning request signal according to a protocol having a maximum value.

  In the control method according to the present invention, a sales area indicating an area where each mobile terminal is sold is stored in the storage unit in association with each mobile terminal, and each protocol is supported for each of the first protocol and the second protocol. The number of mobile terminals sold is stored in the storage unit for each sales area, and in the transmission, a positioning request according to the protocol with the maximum sales volume in the sales area where the target mobile terminal is sold, instead of the first protocol It is preferable to transmit a signal.

  The server according to the present invention includes a first protocol, a second protocol having a version different from the first protocol and having the same version of the message format, and a version different from the first protocol. And a storage unit that stores each terminal identification information of a plurality of mobile terminals that are positioned according to any one of the third protocols having different versions of the message format, and terminal identification information of a target mobile terminal that is a positioning target When a positioning request instruction signal is received from another device, a transmission unit that transmits a positioning request signal according to the first protocol to the target mobile terminal and a first response signal indicating normality are received from the target mobile terminal The protocol that the target mobile terminal supports is determined as the first protocol, and the second indicating that the version is incorrect When the answer signal is received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the second protocol, and the first response signal or the second response signal is not received from the target mobile terminal within a predetermined time A determination unit configured to determine a protocol supported by the target mobile terminal as a third protocol; and a control unit configured to control positioning of the target mobile terminal according to the determined protocol.

  A control program according to the present invention is a control program for a server including a storage unit, and is used for positioning of a mobile terminal in the server. The version differs from the first protocol and the version of the message format. And the terminal identification information of a plurality of portable terminals that are positioned according to any one of the second protocol having the same version and the third protocol having a version and a different version of the message format from the first protocol in the storage unit When a positioning request instruction signal including the terminal identification information of the target portable terminal to be stored is received from another device, the positioning request signal according to the first protocol is transmitted to the target portable terminal to indicate normality When the first response signal is received from the target mobile terminal, the protocol supported by the target mobile terminal is When the second response signal indicating that the version is incorrect is received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the second protocol, and the first response signal or If the second response signal is not received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the third protocol, and the positioning of the target mobile terminal is controlled according to the determined protocol.

  According to the server, its control method, and its control program according to the present invention, it is possible to easily determine a positioning protocol supported by the mobile terminal among a plurality of protocols.

1 is a schematic diagram for explaining an outline of a communication system 1. FIG. 1 is a diagram illustrating an example of a schematic configuration of a communication system 1. FIG. 2 is a diagram illustrating an example of a schematic configuration of a mobile terminal 2. FIG. (A) is a figure which shows an example of schematic structure of the server 3, (b) is a figure which shows an example of the data structure of a table. It is a figure which shows an example of the header part of a positioning request signal. 2 is a diagram illustrating an example of an operation sequence of the communication system 1. FIG. It is a figure which shows an example of the flowchart of the protocol discrimination | determination process by the server. It is a figure which shows an example of the flowchart of the protocol discrimination | determination process by the server. It is a figure which shows an example of the flowchart of the protocol discrimination | determination process by the portable terminal. It is a figure which shows the other example of the data structure of a table.

  Hereinafter, various embodiments of the present invention will be described with reference to the drawings. However, it should be noted that the technical scope of the present invention is not limited to these embodiments, but extends to the invention described in the claims and equivalents thereof.

(First embodiment)

  FIG. 1 is a schematic diagram for explaining an outline of a communication system 1 in the first embodiment. The communication system 1 includes a mobile terminal 2 and a server 3.

  The server 3 is a server that can communicate with the mobile terminal 2. The mobile terminal 2 supports any one protocol among the first protocol, the second protocol, and the third protocol used for positioning of the mobile terminal.

  The first protocol is, for example, OMA SUPL 2.0. The second protocol is a protocol having a version different from that of the first protocol and having the same version of the message format, for example, OMA SUPL 1.0. The third protocol is a protocol whose version and version of the message format are different from the first protocol, and is, for example, Pre-SUPL. However, in the communication system 1, the server 3 does not recognize in advance which protocol the mobile terminal 2 supports.

  When the server 3 causes the mobile terminal 2 to execute a positioning process, first, the server 3 transmits a positioning request signal according to the first protocol to the mobile terminal 2 (10). When the mobile terminal 2 receives the positioning request signal according to the first protocol from the server 3, the mobile terminal 2 specifies the version of the received positioning request signal and responds depending on whether the specified version of the protocol is supported. Is transmitted to the server 3 (11).

  The processing of the mobile terminal 2 when receiving a positioning request signal according to the first protocol from the server 3 differs depending on the protocol supported by the mobile terminal 2. When the mobile terminal 2 supports the first protocol, the version of the protocol included in the positioning request signal is the same as the version of the first protocol, so the mobile terminal 2 transmits a first response signal indicating normality to the server 3. (12). In this case, the server 3 receives the first response signal from the mobile terminal 2 and determines the protocol supported by the mobile terminal 2 as the first protocol (13).

  On the other hand, when the mobile terminal 2 supports the second protocol, the version of the protocol included in the positioning request signal is different from the version of the second protocol, and thus the mobile terminal 2 receives the second response indicating that the version is incorrect. A signal is transmitted to the server 3 (14). In this case, the server 3 receives the second response signal from the mobile terminal 2 and determines the protocol supported by the mobile terminal 2 as the second protocol (15).

  When the portable terminal 2 supports the third protocol, the message format related to the protocol version included in the positioning request signal is different from the message format related to the third protocol version, and the portable terminal 2 uses the protocol of the positioning request signal. The version cannot be parsed. Therefore, the portable terminal 2 cannot respond to the positioning request signal and cannot transmit the response signal to the server 3 (16). If the server 3 does not receive the first response signal or the second response signal within a predetermined time, the server 3 determines the protocol supported by the mobile terminal 2 as the third protocol (17).

  Thus, the server 3 determines a protocol supported by the mobile terminal 2 according to whether or not a response signal is received and which response signal is the response signal received from the mobile terminal 2. Thereby, the server 3 can easily determine the protocol supported by the mobile terminal 2 among the plurality of protocols.

  FIG. 2 is a diagram illustrating an example of a schematic configuration of the communication system 1.

  The communication system 1 includes mobile terminals 2 a to 2 c, a base station 4, a backbone network 5, a server 3, and a location management device 6. The backbone network 5 is a network that relays communication, and is, for example, a telephone line network, the Internet, an intranet, or a dedicated line.

  The server 3 is connected to the backbone network 5 and is connected to the location management device 6 via the backbone network 5. Further, the server 3 is connected to the mobile terminal 2a, the mobile terminal 2b, or the mobile terminal 2c via the base station 4. The portable terminals 2 a to 2 c are connected to the server 3 via the base station 4 and the backbone network 5. The mobile terminals 2a to 2c support any one of the first protocol, the second protocol, and the third protocol used for positioning of the mobile terminal 2. The location management device 6 is connected to the server 3 via the backbone network 5. The position management device 6 is a positioning request inquiry source that transmits a positioning request instruction signal to the server 3 and receives a positioning result from the server 3. The location management device 6 is an example of another device different from the mobile terminals 2a to 2c, the base station 4, and the server 3, and is, for example, a location information notification server (Emergency Register Server, ERS).

  FIG. 3 is a diagram illustrating an example of a schematic configuration of the mobile terminal 2.

  Since the portable terminals 2a to 2c have the same configuration, the portable terminals 2a to 2c may be collectively referred to as the portable terminal 2 below. The mobile terminal 2 is an example of a target mobile terminal that is a positioning target, such as a mobile phone, a personal digital assistant (PDA), a tablet PC (Personal Computer), or the like. The mobile terminal 2 includes a terminal communication unit 21, a GPS unit 22, a terminal storage unit 23, an operation unit 24, a display unit 25, and a terminal control unit 26.

  The terminal communication unit 21 includes a communication interface circuit including an antenna mainly having a 2.1 GHz band as a sensitive band. The terminal communication unit 21 establishes a radio signal line using the CDMA (Code Division Multiple Access) method or the LTE (registered trademark) (Long Term Evolution) method with the base station 4 through a channel assigned by the base station 4. Establish and communicate with the base station 4. Then, the terminal communication unit 21 gives the data received from the base station 4 to the terminal control unit 26. Further, the terminal communication unit 21 transmits data supplied from the terminal control unit 26 to the base station 4.

  The GPS unit 22 has a GPS circuit including an antenna whose sensitivity band is a 1.5 GHz band used in the GPS positioning method, and receives a GPS signal from a GPS satellite. The GPS unit 22 acquires assist information from the server 3 and captures GPS satellites based on the acquired assist information. The assist information is information necessary for the positioning process, such as approximate position information (latitude, longitude, etc.) of the mobile terminal 2 and orbit information (almanac information, ephemeris information, etc.) of GPS satellites. The GPS unit 22 receives and decodes GPS signals from the captured GPS satellites, and acquires time information and the like. Then, the GPS unit 22 calculates the pseudo distance from the GPS satellite to the mobile terminal 2 based on the acquired time information and the like, and solves the simultaneous equations obtained by substituting the pseudo distance to thereby determine the position of the mobile terminal 2. Calculate information (latitude, longitude, altitude, etc.) and error. The GPS unit 22 stores the calculated position information and error in the terminal storage unit 23.

  The terminal storage unit 23 includes, for example, at least one of a semiconductor memory, a magnetic disk device, and an optical disk device. The terminal storage unit 23 stores a driver program, an operating system program, an application program, data, and the like used for processing in the terminal control unit 26. Each program is stored in a terminal storage unit using a known setup program or the like from a computer-readable portable recording medium such as a CD-ROM (compact disk read only memory) or a DVD-ROM (digital versatile disk read only memory). 23 may be installed.

  Further, the terminal storage unit 23 may temporarily store temporary data related to a predetermined process.

  The operation unit 24 may be any device as long as the operation of the mobile terminal 2 is possible, for example, a touch pad, a keyboard, or the like. The user can input characters, numbers, and the like using this device. When operated by the user, the operation unit 24 generates a signal corresponding to the operation. The generated signal is input to the terminal control unit 26 as a user instruction.

  The display unit 25 may be any device as long as it can display images, images, and the like, and is, for example, a liquid crystal display, an organic EL (Electro-Luminescence) display, or the like. The display unit 25 displays a video corresponding to the video data supplied from the terminal control unit 26, an image corresponding to the image data, and the like.

  The terminal control unit 26 includes one or a plurality of processors and their peripheral circuits. The terminal control unit 26 controls the overall operation of the mobile terminal 2 and is, for example, a CPU (Central Processing Unit). The terminal control unit 26 includes a terminal communication unit 21, a display unit, and a display unit so that various processes of the mobile terminal 2 are executed according to a program stored in the terminal storage unit 23, an operation of the operation unit 24, and the like. 25 and the like are controlled. The terminal control unit 26 executes processing based on programs (driver program, operating system program, application program, etc.) stored in the terminal storage unit 23. Further, the terminal control unit 26 can execute a plurality of programs (such as application programs) in parallel.

  The terminal control unit 26 includes a positioning processing unit 261. The positioning processing unit 261 is a functional module implemented by a program executed on a processor included in the terminal control unit 26. The positioning processing unit 261 may be mounted on the mobile terminal 2 as an independent integrated circuit, a microprocessor, or firmware.

  The positioning processing unit 261 connects to the server 3 according to the protocol defined by the portable terminal 2 and controls the positioning process. Details of the positioning process will be described later.

  FIG. 4A is a diagram illustrating an example of a schematic configuration of the server 3.

  The server 3 is, for example, an A-GPS (Assisted Global Positioning System) server. The server 3 includes a server communication unit 31, a server storage unit 32, and a server control unit 33.

  The server communication unit 31 includes a communication interface circuit for connecting the server 3 to the backbone network 5, and performs communication with the backbone network 5. The server communication unit 31 includes a wired LAN interface circuit such as Ethernet (registered trademark), for example, and performs wired communication with the backbone network 5. The server communication unit 31 supplies data received from the mobile terminal 2 or the location management device 6 to the server control unit 33. In addition, the server communication unit 31 transmits the data supplied from the server control unit 33 to the mobile terminal 2 or the location management device 6.

  The server storage unit 32 includes, for example, at least one of a magnetic tape device, a magnetic disk device, and an optical disk device. The server storage unit 32 stores an operating system program, a driver program, an application program, data, and the like used for processing in the server control unit 33. Each program may be installed in the server storage unit 32 using a known setup program or the like from a computer-readable portable recording medium such as a CD-ROM or DVD-ROM.

  The server storage unit 32 also stores a terminal table (FIG. 4B), GPS satellite orbit information, and the like as data. Further, the server storage unit 32 may temporarily store temporary data related to a predetermined process.

  FIG. 4B is a diagram illustrating an example of the data structure of the terminal table.

  The terminal table stores terminal identification information (terminal ID), contract information, protocol history information, and the like in association with each other. The terminal ID is information for identifying the mobile terminal 2. The contract information includes the name of the communication contract and information for identifying the communication contract. The communication contract is a contract made with a communication carrier for performing data communication and voice communication of the mobile terminal 2 used by the user, and includes, for example, a 3G / 4G contract, a VoLTE (Voice over LTE) contract, and the like. The 3G / 4G contract is a contract in which the mobile terminal 2 can perform data communication in both the 3G network and the 4G network and perform voice communication only in the 3G network. The VoLTE contract is a contract in which the mobile terminal 2 can perform data communication and voice communication in both the 3G network and the 4G network. It is stipulated that the mobile terminal 2 that has signed the VoLTE contract should always support OMA SUPL 2.0. It is stipulated that the mobile terminal 2 that has a 3G / 4G contract should support any one of OMA SUPL 2.0, OMA SUPL 1.0, and Pre-SUPL. The protocol history information includes the name of the protocol that was previously determined for the mobile terminal 2 and information for identifying the protocol that was previously determined. Note that the protocol history information of the portable terminal 2 that has not been measured yet is not stored.

  OMA SUPL 2.0 is SUPL VERSION 2.0 defined by OMA. OMA SUPL 1.0 is SUPL VERSION 1.0 defined by OMA. OMA SUPL 2.0 and OMA SUPL 1.0 have different versions and the same message format according to version, while Pre-SUPL and OMA SUPL 2.0 are protocols with different message formats according to version and version. Pre-SUPL is an OMA SUPL Preliminary SUPL that transmits and receives assist information using a U-Plane (User Plane) as a communication bearer.

  FIGS. 5A to 5C are diagrams illustrating examples of the header portion of the positioning request signal according to the first to third protocols, respectively.

  As shown in FIG. 5A, the version (2.0) of the first protocol is stored in the predetermined address of the header portion of the positioning request signal according to the first protocol.

  As shown in FIG. 5B, the header portion of the positioning request signal according to the second protocol has the same address as the predetermined address in which the version is stored in the header portion of the positioning request signal according to the first protocol. The version (1.0) of the second protocol is stored. That is, the header part of the positioning request signal according to the second protocol has the same message format as the header part of the positioning request signal according to the first protocol.

  As shown in FIG. 5C, the header portion of the positioning request signal according to the third protocol has a different address from the predetermined address in which the version is stored in the header portion of the positioning request signal according to the first protocol. The version (1.0) of the third protocol is stored. That is, the header part of the positioning request signal according to the third protocol has a different message format from the header part of the positioning request signal according to the first protocol. Therefore, the portable terminal 2 that supports the first protocol or the second protocol can analyze the version included in the protocol of the positioning request signal according to the first protocol and specify the analyzed version. On the other hand, the mobile terminal 2 that supports the third protocol cannot analyze the version of the positioning request signal according to the first protocol.

  The server control unit 33 includes one or a plurality of processors and their peripheral circuits. The server control unit 33 comprehensively controls the overall operation of the server 3 and is, for example, a CPU. The server control unit 33 controls the operation of the server communication unit 31 and the like so that various processes of the server 3 are executed in an appropriate procedure according to a program stored in the server storage unit 32. The server control unit 33 executes processing based on programs (operating system program, driver program, application program, etc.) stored in the server storage unit 32. The server control unit 33 can execute a plurality of programs (such as application programs) in parallel.

  The server control unit 33 includes a transmission unit 331, a determination unit 332, a history management unit 333, and a positioning control unit 334. Each of these units included in the server control unit 33 is a functional module implemented by a program executed on a processor included in the server control unit 33. Alternatively, these units included in the server control unit 33 may be implemented in the server control unit 33 as independent integrated circuits, microprocessors, or firmware.

  FIG. 6 is a diagram illustrating an example of an operation sequence of the communication system 1.

  Note that the operation sequence described below is mainly performed by the terminal control unit 26 and the server control unit 33 based on the programs stored in the terminal storage unit 23 and the server storage unit 32 in advance. It is executed in cooperation with each element.

  First, the location management device 6 that is the inquiry source of the positioning request transmits a positioning request instruction signal to the server 3 (step S100). The positioning request instruction signal includes the terminal ID of the mobile terminal 2 to be positioned.

  Next, by transmitting and receiving a positioning request signal and a response signal between the server 3 and the mobile terminal 2, the server 3 and the mobile terminal 2 execute a protocol discrimination process (step S101). The server 3 and the mobile terminal 2 determine the protocol supported by the mobile terminal 2 related to the terminal ID included in the positioning request instruction signal received from the position management device 6 in the protocol determination process. Details of the protocol discrimination processing will be described later.

  Next, the positioning processing unit 261 of the mobile terminal 2 transmits an assist information request signal to the server 3 via the terminal communication unit 21 (step S102). The assist information request signal includes the ID of the base station to which the mobile terminal 2 is connected, the IDs of base stations located around the mobile terminal 2, the received radio wave intensity of the mobile terminal 2 from each base station, and assist information. It is included that the request is made.

  Next, when the positioning control unit 334 of the server 3 receives the assist information request signal via the server communication unit 31, the positioning control unit 334 creates assist information from the mobile terminal 2 (step S103). The positioning control unit 334 specifies the ID of the base station to which the mobile terminal 2 is connected and the IDs of base stations around the mobile terminal 2 included in the received assist information request signal. The positioning control unit 334 identifies the approximate position of the portable terminal 2 based on the identified base station ID and the received radio wave intensity of the portable terminal 2 from each base station, and creates approximate position information. In addition, the positioning control unit 334 acquires GPS satellite orbit information corresponding to the specified approximate position of the mobile terminal 2 from the server storage unit 32 and creates assist information.

  Next, the positioning control part 334 transmits an assist signal to the portable terminal 2 via the server communication part 31 (step S104). The assist signal includes assist information and the like.

  Next, when the GPS unit 22 of the portable terminal 2 receives the assist signal from the server 3 via the terminal communication unit 21, the GPS unit 22 controls to receive a GPS signal from a GPS satellite (step S105). The GPS unit 22 captures a GPS satellite based on the approximate position information of the mobile terminal 2 and the orbit information of the GPS satellite included in the received assist signal, receives and decodes the GPS signal from the captured GPS satellite, and time information Etc.

  Next, the positioning processing unit 261 transmits a positioning signal to the server 3 via the terminal communication unit 21 (step S106). The positioning signal includes time information acquired by the GPS unit 22 and the like.

  Next, when the positioning control unit 334 receives a positioning signal from the mobile terminal 2 via the server communication unit 31, the positioning control unit 334 executes a positioning process (step S107). The positioning control unit 334 specifies time information included in the received positioning signal. The positioning control unit 334 executes a positioning process based on the specified time information and the like, and obtains a positioning result (position information and error).

  Next, the positioning control unit 334 transmits a completion notification signal to the mobile terminal 2 (step S108), and ends the positioning process.

  Next, the positioning control unit 334 transmits a positioning result signal to the position management device 6 via the server communication unit 31 (step S109). The positioning result signal includes the positioning result obtained by the positioning process.

  In this way, the server 3 can provide the positioning result for the positioning-target mobile terminal 2 to the location management device 6 that is the inquiry source.

  7 and 8 are diagrams illustrating an example of a flowchart of the protocol determination process by the server 3. 7 and 8 are executed by the server 3 in step S101 of FIG.

  The flowchart described below is executed mainly by the server control unit 33 in cooperation with each element of the server 3 based on a program stored in the server storage unit 32 in advance.

  First, the determination unit 332 of the server 3 determines whether or not the communication contract related to the target mobile terminal 2 to be positioned is a predetermined contract that supports only the first protocol (step S200). The determination unit 332 identifies the terminal ID included in the positioning request instruction signal received from the location management device 6. The determining unit 332 refers to the terminal table and determines whether or not the communication contract indicated by the contract information related to the mobile terminal having the specified terminal ID is a predetermined contract that supports only the first protocol. When it is determined that the communication contract is a predetermined contract that supports only the first protocol (step S200-Yes), the determination unit 332 determines the protocol supported by the target mobile terminal 2 to be positioned as the first protocol. (Step S201). Thereby, when the communication contract concerning the portable terminal 2 to be positioned is a predetermined contract, the server 3 can determine the protocol earlier and with a lower load.

  Next, the transmission part 332 transmits the positioning request signal according to the determined 1st protocol to the portable terminal 2 via the server communication part 31 (step S202). The positioning request signal is transmitted by, for example, SMS (Short Message Service) or WAP (Wireless Application Protocol) push. Next, the determination part 332 receives a 1st response signal from the portable terminal 2 via the server communication part 31 (step S203).

  On the other hand, when it is determined that the communication contract is not a predetermined contract that supports only the first protocol (step S200-No), the history management unit 333 stores protocol history information related to the mobile terminal to be measured in the terminal table. It is determined whether or not (step S204). When the protocol history information is stored in the terminal table (step S204-Yes), the transmission unit 331 transmits a positioning request signal according to the protocol indicated in the stored protocol history information to the portable terminal 2 (step S204). S205).

  Next, the determination part 332 determines whether the 1st response signal was received from the portable terminal 2 via the server communication part 31 (step S206). When it determines with having received the 1st response signal (step S206-Yes), the determination part 332 determines the protocol which the portable terminal 2 supports to the protocol shown by protocol historical information (step S207). Thereby, the server 3 can determine a protocol earlier and with low load, when the protocol log | history which concerns on the object portable terminal 2 used as positioning object is memorize | stored.

  On the other hand, when the protocol history information is not stored in the terminal table (step S204-No), the transmission unit 331 transmits a positioning request signal according to the first protocol to the mobile terminal 2 via the server communication unit 31 ( Step 300 of FIG.

  Moreover, also when it determines with not receiving a 1st response signal (step S206-No), the transmission part 331 transfers a process to step S300 of FIG. For example, when a user replaces a portable terminal that has been measured in the past with a portable terminal that supports a different protocol, the first response signal cannot be received in response to a positioning request signal that conforms to the protocol indicated in the protocol history information. there is a possibility. In that case, the server 3 executes again the processing after step S300 in FIG. 8 in order to determine the protocol that the mobile terminal 2 supports.

  Next, the determination unit 332 determines whether or not a first response signal indicating normality has been received from the mobile terminal via the server communication unit 31 (step S301). When it determines with having received the 1st response signal from the portable terminal 2 (step S301-Yes), the determination part 332 determines the protocol which the portable terminal 2 supports to a 1st protocol (step S302). In this case, the determination unit 332 has the same message format according to the protocol version supported by the mobile terminal 2 as the message format according to the first protocol version, and the protocol supported by the mobile terminal 2. It is determined that the version is the same as the version of the first protocol, and the protocol supported by the mobile terminal 2 is determined as the first protocol.

  On the other hand, when it determines with not having received the 1st response signal from the portable terminal 2 (step S301-No), the determination part 332 sends the 2nd response signal which shows that a version is incorrect via the server communication part 31. Then, it is determined whether or not it has been received from the portable terminal 2 (step S303). When it determines with having received the 2nd response signal from the portable terminal 2 (step S303-Yes), the determination part 332 determines the protocol which the portable terminal 2 supports to a 2nd protocol (step S304). In this case, the determination unit 332 has the same message format according to the protocol version supported by the mobile terminal 2 as the message format according to the first protocol version, and the protocol supported by the mobile terminal 2. It is determined that the version is different from the version of the first protocol, and the protocol supported by the mobile terminal 2 is determined as the second protocol.

  Next, the transmission part 331 transmits the positioning request signal according to the determined 2nd protocol to the portable terminal 2 (step S305). The determination unit 332 receives the first response signal from the mobile terminal 2 via the server communication unit 31 (step S306).

  On the other hand, if it is determined that the third response signal has not been received from the portable terminal 2 (No in step S303), the determination unit 332 determines whether a predetermined time has elapsed since the transmission of the positioning request signal according to the first protocol. It is determined whether or not (step S307). When it determines with predetermined time not having passed (step S307-No), the determination part 332 returns a process to step S301, and performs the process of step S301 again.

  On the other hand, when it is determined that the predetermined time has elapsed (step S307-Yes), the determination unit 332 differs in the message format related to the protocol version supported by the mobile terminal 2 from the message format related to the first protocol version. The portable terminal 2 determines that the protocol version of the positioning request signal could not be analyzed, and determines the protocol supported by the portable terminal 2 as the third protocol (step S308).

  Next, the transmission part 331 transmits the positioning request signal according to the determined 3rd protocol to the portable terminal 2 (step S309). The determination unit 332 receives the first response signal from the mobile terminal 2 via the server communication unit 31 (step S310).

  Next, after the determination unit 332 executes the process of step S203, S207, S302, S306, or S310, the history management unit 333 stores the protocol history information in the terminal table (step S311). The history management unit 333 stores the protocol name determined as a protocol supported by the portable terminal 2 and information for identifying the protocol as protocol history information in association with the portable terminal 2 in the terminal table. Thereby, when the positioning of the portable terminal 2 is controlled next, the protocol supported by the portable terminal 2 can be determined as the protocol indicated in the protocol history information.

  Thus, the server 3 determines a protocol supported by the mobile terminal 2 according to whether or not a response signal is received and which response signal is the response signal received from the mobile terminal 2. Thereby, the server 3 can easily determine the protocol supported by the mobile terminal 2 among the plurality of protocols. Thereafter, the positioning control unit 334 controls the positioning of the portable terminal 2 by transmitting the assist signal shown in FIG. 6 according to the determined protocol.

  FIG. 9 is a diagram illustrating an example of a flowchart of protocol discrimination processing by the mobile terminal 2. FIG. 9 is executed by the portable terminal 2 in step S101 of FIG.

  In addition, the flowchart demonstrated below is mainly performed by the terminal control part 26 in cooperation with each element of the portable terminal 2 based on the program previously memorize | stored in the terminal memory | storage part 23. FIG.

  First, the positioning processing unit 261 of the portable terminal 2 receives a positioning request signal according to any one of the first protocol to the third protocol from the server 3 via the terminal communication unit 21 (step S400).

  Next, the positioning processing unit 261 determines whether or not the protocol version can be analyzed in the received positioning request signal (step S401). The positioning processing unit 261 determines whether or not the version information is stored in the address in which the version information of the protocol supported by the positioning processing signal 261 is stored in the header of the positioning request signal. Determine whether protocol version can be analyzed. If it is determined that the protocol version cannot be analyzed (step S401-No), the positioning processing unit 261 cannot interpret the meaning of the received positioning request signal. The processing of a series of steps is terminated without transmitting a response signal to the.

  On the other hand, when it is determined that the protocol version can be analyzed (step S401—Yes), the positioning processing unit 261 determines whether the protocol corresponding to the positioning request signal received from the server 3 is supported (step S402). ). The positioning processing unit 261 analyzes a predetermined address in the header part of the positioning request signal received from the server 3 to identify the version included in the positioning request signal, and whether or not the version of the protocol to be supported matches the specified version. By determining whether or not the protocol for the received positioning request signal is supported. If it is determined that the protocol is supported (step S402—Yes), the positioning processing unit 261 transmits a first response signal indicating normality to the server 3 (step S403).

  On the other hand, when it determines with not supporting (step S402-No), the positioning process part 261 transmits the 2nd response signal which shows that a version is incorrect to the server 3 (step S404).

  As described above, the portable terminal 2 transmits the first response signal when supporting the protocol corresponding to the received positioning request signal, and transmits the second response signal when not supporting the protocol corresponding to the received positioning request signal. If the protocol version of the transmitted positioning request signal cannot be analyzed, the response signal is not transmitted.

  As described above, the server 3 determines a protocol supported by the mobile terminal 2 according to whether or not the response signal is received and which response signal is the response signal received from the mobile terminal 2. . Thus, the server 3 can easily determine the protocol supported by the mobile terminal 2.

(Second Embodiment)
Hereinafter, a second embodiment will be described. The configuration of the communication system 1 in the second embodiment is the same as the configuration of the communication system 1 in the first embodiment. However, in the second embodiment, the server 3 stores, as data, the terminal table shown in FIG. 10A in the server storage unit 32 instead of the terminal table shown in FIG. The area table (FIG. 10B) is stored in the server storage unit 32.

  FIG. 10A is a diagram illustrating an example of the data structure of the terminal table in the second embodiment.

  The terminal table stores terminal identification information (terminal ID), contract information, protocol history information, sales area, and the like in association with each other. The sales area indicates an area where each mobile terminal is sold.

  FIG. 10B is a diagram illustrating an example of the data structure of the sales area table.

  The sales area table stores protocol information, the number of units sold, and the like for each of the first protocol and the second protocol for each sales area. The protocol information includes a protocol name and information for identifying the protocol. The number of sales indicates the number of mobile terminals that support each protocol in each area.

  In the second embodiment, the communication system 1 executes the positioning process for the mobile terminal 2 according to the operation sequence illustrated in FIG. 6 and the flowcharts illustrated in FIGS. 7 to 9 as in the first embodiment.

  However, the transmission unit 331 of the server 3 refers to the terminal table instead of the process of step S300 in FIG. 8, and sells the mobile terminal 2 having the terminal ID included in the positioning request instruction signal received from the position management device 6. Identify the area. Further, the transmission unit 331 refers to the sales area table, specifies the protocol with the maximum sales volume in the specified sales area, and sends a positioning request signal according to the protocol with the maximum specified sales volume to the mobile terminal. 2 to send.

  Further, the determination unit 332 of the server 3 determines the protocol supported by the mobile terminal 2 as the protocol with the maximum number of units sold instead of step S302 in FIG. Furthermore, instead of step S304 in FIG. 8, the determination unit 332 determines the protocol supported by the mobile terminal 2 as a protocol having a version different from the protocol with the largest sales volume and the same message format related to the version. .

  As described above, the server 3 transmits a positioning request signal according to the protocol that maximizes the number of units sold to the mobile terminal 2 in the sales area where the target mobile terminal 2 to be positioned is sold. Thereby, the server 3 improves the probability that the protocol of the positioning request signal transmitted first and the protocol supported by the mobile terminal 2 match, and transmits and receives the positioning request signal and the response signal between the mobile terminal 2 and the server 3. The number of times can be reduced.

  The server 3 may store nationwide the number of mobile terminals that support each of the first protocol and the second protocol without dividing the sales number for each sales area. In that case, in step S300 of FIG. 8, the transmission unit 331 sends a positioning request signal according to the protocol in which the number of target portable terminals 2 to be positioned in the country is the largest in place of the first protocol to the portable terminal. 2 to send.

  In the first and second embodiments, examples in which OMA SUPL 2.0, OMA SUPL 1.0, and Pre-SUPL are used as the first protocol, the second protocol, and the third protocol have been described. Is not limited to this. For example, the first protocol may be OMA SUPL 1.0 and the second protocol may be OMA SUPL 2.0.

  The message format of one specific protocol among the first to third protocols is different from the message format of the other two protocols, and the other two protocols are protocols having different versions and the same message format. That is, the first protocol may be any one of two protocols having the same message format among the three protocols. In that case, each mobile terminal that supports each of the three protocols performs different response processing to the positioning request signal according to the first protocol that the server 3 first transmits, so the server 3 supports the mobile terminal. The protocol can be properly determined.

  Further, the number of protocols with different versions and the same version of the message format may be three or more instead of two. For example, each portable terminal has a first protocol, a second protocol, or a third protocol that have different versions and the same version of the message format, or a fourth protocol that has a different version and version of the message format from the first protocol. One of these is supported. In that case, when the determination unit 332 of the server 3 receives the second response signal from the portable terminal 2 in response to the positioning request signal according to the first protocol, the transmission unit 331 sends the positioning request signal according to the second protocol. Transmit to the mobile terminal 2. If the determination unit 332 cannot receive the first response signal from the mobile terminal 2, the protocol supported by the mobile terminal 2 is different in version from the first protocol and the second protocol, and the version message format is the same. The transmission unit 331 transmits a positioning request signal according to the third protocol to the mobile terminal 2.

  Further, the location management device 6 may be a mobile terminal of a user different from the user of the mobile terminal 2 to be positioned, instead of the location information notification server. Thereby, for example, the parent of the user of the mobile terminal 2 to be positioned operates the mobile terminal of his / her own, transmits a positioning request instruction signal for the mobile terminal of his / her child to the server 3, and the parent I can grasp it.

  A computer program for causing a computer to realize the functions of the terminal control unit 26 and the server control unit 33 is provided in a form stored in a computer-readable recording medium such as a magnetic recording medium or an optical recording medium. May be.

  It should be understood by those skilled in the art that various changes, substitutions and modifications can be made thereto without departing from the spirit and scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Communication system 2 Portable terminal 261 Positioning processing part 3 Server 331 Transmission part 332 Determination part 333 History management part 334 Positioning control part

Claims (7)

A method for controlling a server including a storage unit,
A first protocol used for positioning of a portable terminal, a second protocol having a version different from the first protocol and having the same version of the message format, and a version and a version of the message format of the first protocol Storing each terminal identification information of a plurality of portable terminals positioning according to any one of the different third protocols in the storage unit,
When a positioning request instruction signal including terminal identification information of a target mobile terminal to be positioned is received from another device, a positioning request signal according to the first protocol is transmitted to the target mobile terminal,
When the first response signal indicating normality is received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the first protocol, and the second response signal indicating that the version is incorrect is set as the target mobile terminal. When received from a terminal, the protocol supported by the target mobile terminal is determined as the second protocol, and when the first response signal or the second response signal is not received from the target mobile terminal within a predetermined time A protocol supported by the target mobile terminal is determined as the third protocol;
Controlling positioning of the target mobile terminal according to the determined protocol;
A control method comprising: Furthermore, the contract information indicating the communication contract for each mobile terminal is stored in the storage unit,
When the positioning request instruction signal is received, it is determined whether or not the communication contract related to the target mobile terminal is a predetermined contract that supports only the first protocol, and the communication contract is not the predetermined contract Only when it is determined, the protocol supported by the target mobile terminal is determined according to the determination process, and when it is determined that the communication contract is the predetermined contract, the protocol supported by the target mobile terminal is determined by the first protocol. The control method according to claim 1, wherein the control method is determined as follows. Further, the determined protocol is stored in the storage unit in association with the target mobile terminal,
Next, when controlling the positioning of the target mobile terminal, the control method according to claim 1 or 2, wherein a protocol stored in the storage unit is determined as a protocol supported by the target mobile terminal. Further, for each of the first protocol and the second protocol, the number of portable terminals that support each protocol is stored in the storage unit,
The control method according to any one of claims 1 to 3, wherein, in the transmission, a positioning request signal according to a protocol in which the number of units sold is maximum is transmitted instead of the first protocol. Further, a sales area indicating the area where each mobile terminal is sold is associated with each mobile terminal and stored in the storage unit,
For each of the first protocol and the second protocol, the number of portable terminals that support each protocol is stored in the storage unit for each sales area,
In the transmission, instead of the first protocol, in the sales area where the target mobile terminal is sold, a positioning request signal according to the protocol with the maximum number of units sold is transmitted. The control method according to one item. A first protocol used for positioning of a portable terminal, a second protocol having a version different from the first protocol and having the same version of the message format, and a version and a version of the message format of the first protocol A storage unit that stores terminal identification information of a plurality of mobile terminals that are positioned according to any one of the different third protocols,
A transmission unit that transmits a positioning request signal according to the first protocol to the target mobile terminal when receiving a positioning request instruction signal including the terminal identification information of the target mobile terminal to be positioned from another device;
When the first response signal indicating normality is received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the first protocol, and the second response signal indicating that the version is incorrect is set as the target mobile terminal. When received from a terminal, the protocol supported by the target mobile terminal is determined as the second protocol, and when the first response signal or the second response signal is not received from the target mobile terminal within a predetermined time A determination unit that determines the protocol supported by the target mobile terminal as the third protocol;
A control unit for controlling the positioning of the target mobile terminal according to the determined protocol,
A server characterized by that. A control program for a server comprising a storage unit, wherein the server
A first protocol used for positioning of a portable terminal, a second protocol having a version different from the first protocol and having the same version of the message format, and a version and a version of the message format of the first protocol Storing each terminal identification information of a plurality of portable terminals positioning according to any one of the different third protocols in the storage unit,
When a positioning request instruction signal including terminal identification information of a target mobile terminal to be positioned is received from another device, a positioning request signal according to the first protocol is transmitted to the target mobile terminal,
When the first response signal indicating normality is received from the target mobile terminal, the protocol supported by the target mobile terminal is determined as the first protocol, and the second response signal indicating that the version is incorrect is set as the target mobile terminal. When received from a terminal, the protocol supported by the target mobile terminal is determined as the second protocol, and when the first response signal or the second response signal is not received from the target mobile terminal within a predetermined time A protocol supported by the target mobile terminal is determined as the third protocol;
Controlling positioning of the target mobile terminal according to the determined protocol;
A control program characterized in that it is executed.

Images