JP3556635B2 - Terminal position notification system, mobile terminal, and terminal position notification method - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a terminal position notification system and a terminal position notification method for notifying a position of a communication terminal to a communication partner of the communication terminal.
[0002]
[Prior art]
2. Description of the Related Art A system (terminal position notification system) that measures the position of a communication terminal of an originator of an emergency call received by a police or fire department and notifies the communication device of the destination of the call has been put into practical use. In this way, the location of the communication terminal of the caller is notified to the communication device of the callee, so that the callee can quickly and appropriately perform subsequent activities such as dispatch. In particular, when the source is a mobile terminal, the position of the mobile terminal is not fixed, so that the effect of measuring the position of the mobile terminal of the source and notifying the destination communication device is great.
[0003]
[Problems to be solved by the invention]
By the way, in the conventional terminal position notification system described above, after the position of the communication terminal of the transmission source is measured, the call transmitted from the communication terminal of the transmission source is connected to the communication device of the destination, so In some cases, it took a lot of time to receive a call. However, in view of the fact that the call originating from the originating communication terminal is an emergency call, it is not desirable that such a long time is required from origination to termination.
[0004]
An object of the present invention is to provide a terminal position estimation system and a terminal position estimation method that reduce the time required from origination to termination of a call.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a terminal location notification system according to the present invention provides a terminal location notification system comprising a communication terminal and a communication network to which the communication terminal is connected, as described in claim 1. The communication network determines whether or not the communication partner of the communication terminal needs the position of the communication terminal based on the call signal when the communication terminal makes a call in parallel with the call connection process. Determining means for determining the position of the communication terminal when the communication partner of the communication terminal determines that the position of the communication terminal is required by the determination means; Terminal position notifying means for notifying a communication partner of the communication terminal of the measured position of the communication terminal.
[0006]
In such a terminal position notification system, the position of the communication terminal is measured in parallel during communication by the communication terminal, and the measured position of the communication terminal is notified to the communication device of the communication partner. For this reason, the time required from transmission to reception does not increase by the processing of the position measurement and notification of the communication terminal, and the time required from transmission to reception can be reduced as compared with the related art.
[0007]
Further, as set forth in claim 2 of the present invention, in the terminal location notification system, the determination unit includes a destination recognition unit that recognizes a communication partner of the communication terminal in parallel with the call connection process. The terminal position measuring means is configured to measure the position of the communication terminal when the recognized communication partner is a predetermined partner.
[0008]
Calls that require the location of a communication terminal at a destination, such as an emergency call, have a correlation with the destination. For this reason, the position of the communication terminal is measured only when the communication destination of the communication terminal is a predetermined destination, so that the position of the communication terminal required at the destination can be reliably measured. This can reduce the processing load on both the terminal location notification system and the communication device of the other party to be notified of the terminal location, similarly to the invention described in claim 2. Also, at the time of call connection processing at the start of communication, the communication partner is recognized and the position of the communication terminal is measured, so that the subsequent measurement of the position of the communication terminal and notification of the position to the communication device can be quickly performed. It can be carried out.
[0009]
Further, the invention as described in claim 3, wherein the destination recognizing section in the terminal position notification system based on the information about the communication partner is notified from the communication terminal, recognizing the other party of the communication I did it.
[0010]
Further, according to the present invention as set forth in claim 4, in the terminal position notification system, the position notification unit notifies the measured position of the communication terminal in response to a position notification request from the communication partner. I did it.
[0011]
In this case, the location of the communication terminal is notified only when the communication partner needs the location of the communication terminal. It is possible to reduce the processing load on both of the communication devices of the other party whose terminal position is notified.
[0012]
Further, according to the present invention, in the terminal location notification system, the communication terminal is a mobile terminal.
[0013]
Further, according to the present invention as set forth in claim 6, in the terminal position notification system, the terminal position measuring means is configured to continue measuring the position of the mobile terminal according to the movement of the mobile terminal. did. Since the position of the mobile terminal changes at any time, it is possible to notify the communication device of the other party of the position of the mobile terminal having high usage by continuously measuring the position of the mobile terminal.
[0014]
In order to achieve the above object, a terminal location notification method according to the present invention provides a terminal location notification system comprising a communication terminal and a communication network connected to the communication terminal. in the notification process, the communication network, said when there is a call from the communication terminal, the communication partner of the communication terminal based on a calling signal, whether the call connection processing requires a position of the communication terminal And in parallel, when the communication partner of the communication terminal is determined to require the position of the communication terminal, the position of the mobile terminal is measured, and the position of the measured communication terminal is determined. Is notified to the communication partner of the communication terminal.
[0015]
According to the present invention, in the terminal location notification method, a communication partner of the communication terminal is recognized in parallel with the call connection processing, and the recognized communication partner is a predetermined partner. In this case, the position of the communication terminal is measured.
[0016]
Further, according to the present invention, in the terminal location notifying method, the communication partner is recognized based on information about the communication partner notified from the communication terminal.
[0017]
Further, according to the present invention, in the terminal location notifying method, the measured position of the communication terminal is notified in response to a position notification request from the communication partner .
[0018]
Further, according to the present invention, in the terminal location notification method, the communication terminal is a mobile terminal.
[0019]
Further, according to the present invention, in the terminal location notifying method, the measurement of the position of the mobile terminal is continued according to the movement of the mobile terminal.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating a configuration example of a mobile communication system to which a terminal location notification system according to the present invention is applied. The mobile communication system 1 shown in FIG. 1 includes a service control device 10 as a common base for controlling various mobile communication services, a positioning server 20 for measuring the position of the mobile terminal 100, a core network 30, a mobile terminal 100, and the mobile terminal 100. A communication device 200 such as a police station, a fire department, or various reception centers that communicates with the user is provided.
[0021]
Among them, the service control device 10, the positioning server 20, and the core network 30 or the service control device 10, the positioning server 20, and the mobile terminal 100 constitute a terminal position estimation system.
[0022]
This terminal position notification system measures the position of the mobile terminal 100 while communication is being performed between the mobile terminal 100 and the communication device 200 such as the police or fire department via the core network 30. The notified position is notified to the communication device 200.
[0023]
The mobile terminal 100 makes a call to the communication device 200 according to a predetermined operation of the user. In the call signal transmitted from mobile terminal 100, the telephone number of mobile terminal 100 is set as the source telephone number, and the telephone number of communication device 200, which is the destination, is set as the destination telephone number.
[0024]
When receiving a call signal transmitted from mobile terminal 100, core network 30 establishes a communication between mobile terminal 100 and communication device 200 based on a source telephone number and a destination telephone number included in the call signal. A predetermined call connection process for starting communication is performed. By this call connection process, the mobile terminal 100 and the communication device 200 are connected via the core network 30, and communication is started.
[0025]
Also, in parallel with the above-described call connection processing, the core network 30 determines whether or not the communication device 200 specified by the destination telephone number included in the call signal is a destination that requires the position of the mobile terminal 100. Is determined.
[0026]
For example, the core network 30 registers in advance a telephone number of a destination requiring the position of the mobile terminal 100 in a database (not shown). When receiving a call signal from the mobile terminal 100, the core network 30 searches the database using the destination telephone number included in the call signal as a key, and finds a telephone number that matches the destination telephone number in the database. If the mobile terminal 100 is registered in the mobile terminal 100, it is determined that the destination is a destination that requires the position of the mobile terminal 100.
[0027]
When the communication device 200 is a destination that requires the position of the mobile terminal 100, the core network 30 transmits a positioning request to the positioning server 20. In the positioning request, a source telephone number included in a call signal from the mobile terminal 100, that is, a telephone number of the mobile terminal 100 is set.
[0028]
When receiving the positioning request from the core network 30, the positioning server 20 specifies the mobile terminal 100 based on the telephone number of the mobile terminal 100 included in the positioning request, and measures the position of the mobile terminal 100. Specifically, the positioning server 20 specifies, for example, a base station (not shown) to which the mobile terminal 100 is connected, and derives the installation location of the base station as the position of the mobile terminal 100. The positioning server 20 transmits the position information of the mobile terminal 100 measured in this way, the telephone number of the mobile terminal 100, and a flag indicating the urgency of the position notification (hereinafter, referred to as “urgent flag”) to the core network 30. To the service control device 10 via the. The positioning server 20 transmits the position information, the telephone number, and the emergency flag of the mobile terminal 100 to the mobile terminal 100 via the core network 30, and the mobile terminal 100 notifies the service control device 10 of the information. You may do it.
[0029]
Further, when the communication device 200 is a destination that requires the position of the mobile terminal 100, the core network 30 may transmit a positioning request to the mobile terminal 100. In this case, the positioning request includes the telephone number of the service control device 10.
[0030]
The mobile terminal 100 is a terminal that can simultaneously communicate with a plurality of destinations using a multi-call function. Therefore, the mobile terminal 100 can receive a positioning request from the core network 30 during communication with the communication device 200. The mobile terminal 100 that has received the positioning request measures the position (longitude / latitude) of the terminal itself in response to the positioning request, for example, by using a GPS (Global Positioning System) function. Then, the mobile terminal 100 makes a call using the telephone number of the service control device 10 included in the positioning request as a destination, and transmits the measured position information of the own terminal, the telephone number of the own terminal, and the emergency flag to the core network 30. To the service control device 10 via the.
[0031]
When the service control device 10 receives the position information of the mobile terminal 100 notified from the positioning server 20 or the mobile terminal 100, the service control device 10 associates the position information and the telephone number of the mobile terminal 100 with a built-in database (not shown). Register with.
[0032]
In addition, after registering the location information and the telephone number from the positioning server 20 or the mobile terminal 100 in the database, the service control device 10 receives the emergency flag together with the location information and the telephone number, and performs the core control at a predetermined cycle. A positioning request is transmitted to the positioning server 20 or the mobile terminal 100 via the network 30. Each time the positioning server 20 or the short travel time 100 receives a positioning request from the service control device 10, it measures the position of the mobile terminal 100 according to the above-described procedure, and transmits the measured position information of the mobile terminal 100 to the mobile terminal. The service control device 10 is notified via the core network 30 together with the telephone number of 100. Each time the service control device 10 receives the position information and the telephone number of the mobile terminal 100 notified from the positioning server 20 or the mobile terminal 100, the service control device 10 associates the position information and the telephone number of the mobile terminal 100 by the above-described procedure. , Register in the built-in database.
[0033]
When the operator requests the position of the mobile terminal 100 that is the communication partner, the communication device 200 performing communication with the mobile terminal 100 sends a position notification request to the service control device 10 in response to the request. Send. The location notification request includes the telephone number of the mobile terminal 100.
[0034]
When the service control device 10 receives the position notification request from the communication device 200, the service control device 10 searches the built-in database using the telephone number of the mobile terminal 100 included in the position notification request as a key, and associates the database with the telephone number. If the location information of the mobile terminal 100 is registered, the communication device 200 is notified of the registered location information of the mobile terminal 100. When a plurality of pieces of location information for a single mobile terminal 100 are registered in a built-in database, the service control apparatus 10 may notify all registered location information. May be notified.
[0035]
The communication device 200 displays the position information of the mobile terminal 100 notified from the service control device 10 on, for example, a display (not shown). Thereby, the operator of the communication device 200 can recognize the position of the mobile terminal 100 that is the communication partner.
[0036]
Hereinafter, the operation of the terminal location notification system will be described with reference to the sequence diagram shown in FIG. The mobile terminal 100 sends a call to the communication device 200 and sends a call signal in accordance with a predetermined operation of the user (step 101).
[0037]
Upon receiving the call signal sent from mobile terminal 100, core network 30 performs a predetermined call connection process and sends the call signal to communication device 200, which is the destination of the call (step 102). By this call connection processing, the mobile terminal 100 and the communication device 200 are connected via the core network 30, and communication is started (step 103).
[0038]
Further, in parallel with the call connection process in step 102, the core network 30 determines whether or not the communication device 200 is a destination that requires the position of the mobile terminal 100 (step 104). When the communication device 200 is a destination that requires the position of the mobile terminal 100, the core network 30 transmits a positioning request to the positioning server 20 (Step 105).
[0039]
Upon receiving the positioning request from the core network 30, the positioning server 20 measures the position of the mobile terminal 100 according to the positioning request (Step 106). Next, the positioning server 20 notifies the service control device 10 of the measured position information, telephone number, and emergency flag of the mobile terminal 100 via the core network 30 (Step 107).
[0040]
Upon receiving the position information of the mobile terminal 100 notified from the positioning server 20, the service control device 10 associates the position information and the telephone number of the mobile terminal 100 with each other and registers them in a built-in database (step 108).
[0041]
When the operator requests the position of the mobile terminal 100 that is the communication partner, the communication device 200 performing communication with the mobile terminal 100 sends a position notification request to the service control device 10 in response to the request. Send it (step 109).
[0042]
Upon receiving the position notification request from communication device 200, service control device 10 notifies communication device 200 of the position information of mobile terminal 100 registered in the database (step 110).
[0043]
In addition, since the service control device 10 receives the emergency flag together with the location information and the telephone number of the mobile terminal 100 in step 107, after registering the location information and the telephone number from the positioning server 20 in the database in step 108, Then, a positioning request is transmitted to the positioning server 20 via the core network 30 (step 111). After that, every time a positioning request is transmitted from the service control device 10 to the positioning server 20, the operation after the position measurement of the mobile terminal 100 by the positioning server 20 (Step 106) is repeated.
[0044]
As described above, in the terminal location notification system according to the present embodiment, while the communication is being performed between the mobile terminal 100 and the communication device 200 such as the police or the fire department via the core network 30, the positioning server 20 or the The position of the mobile terminal 100 is measured by the mobile terminal 100 and is notified to the service control device 10. When the position notification request is received from the communication device 200, the service control device 10 To the communication device 200. Therefore, the processing of the position measurement and the notification of the mobile terminal 100 does not increase the time required from the transmission to the reception in the communication between the mobile terminal 100 and the communication device 200. The time required for the operation can be reduced.
[0045]
Further, in the terminal location notification system of the present embodiment, the core network 30 establishes communication between the mobile device 100 and the mobile device 100 in parallel with a predetermined call connection process for starting communication between the mobile device 100 and the communication device 200. In the case of a destination requiring the position of the mobile terminal 100, the core network 30 transmits a positioning request to the positioning server 20 or the mobile terminal 100, The location can be notified promptly.
[0046]
In the above-described embodiment, a case has been described where the mobile terminal 100 is the source and the communication device 200 is the destination. However, in the case where the communication device 200 is the source and the mobile terminal 100 is the destination, Also, the present invention can be applied.
[0047]
In this case, when the core network 30 receives the call signal from the communication device 200, the communication device 200 needs the position of the mobile terminal 100 based on the source telephone number included in the call signal. It is determined whether or not it is a destination to be performed. When the communication device 200 is a destination that requires the position of the mobile terminal 100, the core network 30 sends a call to the positioning server 20 to the destination telephone number included in the call signal from the communication device 200, that is, A positioning request in which the telephone number of the mobile terminal 100 is set is transmitted. Thereafter, the position of the mobile terminal 100 is measured and notified to the communication device 200 by the same processing as in the case where the mobile terminal 100 is the transmission source and the communication device 200 is the destination.
[0048]
In the above embodiment, the positioning server 20 or the mobile terminal 100 corresponds to a terminal position measuring unit, and the service control device 10 corresponds to a terminal position notifying unit. Further, the core network 30 corresponds to a destination recognition unit.
[0049]
【The invention's effect】
As described above, according to the present invention, during communication by a communication terminal, the position of the communication terminal is measured in parallel, and the measured position of the communication terminal is notified to the communication device of the communication partner. For this reason, the time required from transmission to reception does not increase by the processing of the position measurement and notification of the communication terminal, and the time required from transmission to reception can be reduced as compared with the related art.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a configuration example of a mobile communication system.
FIG. 2 is a sequence diagram showing an operation of the mobile communication system.
[Explanation of symbols]
1 mobile communication system 10 service control device 20 positioning server 30 core network 100 mobile terminal 200 communication device

Claims (12)

In a terminal location notification system comprising a communication terminal and a communication network connected to the communication terminal,
The communication network is configured to determine whether a communication partner of the communication terminal needs the position of the communication terminal based on a call signal when a call is made from the communication terminal in parallel with the call connection process. Determining means for determining;
A terminal position measuring unit that measures the position of the communication terminal when the communication partner of the communication terminal is determined to require the position of the communication terminal by the determination unit,
Terminal position notifying means for notifying the position of the measured communication terminal to a communication partner of the communication terminal,
A terminal position notification system comprising: The terminal location notification system according to claim 1,
The determination unit includes a destination recognition unit that recognizes a communication partner of the communication terminal in parallel with the call connection process ,
The terminal position notifying system, wherein the terminal position measuring means measures the position of the communication terminal when the recognized communication partner is a predetermined partner. The terminal location notification system according to claim 2,
The terminal location estimating system, wherein the destination recognition unit recognizes the destination of the communication based on information about the destination of communication notified from the communication terminal. The terminal location notification system according to any one of claims 1 to 3,
The terminal position notification system, wherein the position notification means notifies the measured position of the communication terminal in response to a position notification request from the communication partner. The terminal location notification system according to any one of claims 1 to 4,
The terminal location notification system, wherein the communication terminal is a mobile terminal. The terminal location notification system according to claim 5,
The terminal position notifying system, wherein the terminal position measuring means keeps measuring the position of the mobile terminal according to the movement of the mobile terminal. In a terminal position notification method in a terminal position notification system including a communication terminal and a communication network connected to the communication terminal,
The communication network is configured to determine whether a communication partner of the communication terminal needs the position of the communication terminal based on a call signal when a call is made from the communication terminal in parallel with the call connection process. Judge,
When it is determined that the communication partner of the communication terminal requires the position of the communication terminal by the determination, the position of the mobile terminal is measured,
A terminal position notifying method, wherein the measured position of the communication terminal is notified to a communication partner of the communication terminal. The terminal location notification method according to claim 7,
In parallel with the call connection process, a communication partner of the communication terminal is recognized,
A terminal position notification method for measuring the position of the communication terminal when the recognized communication partner is a predetermined partner. In the terminal location notification method according to claim 10,
A terminal position estimating method for recognizing a communication partner based on information on a communication partner notified from the communication terminal. The terminal location notification method according to any one of claims 7 to 9,
A terminal position notification method for notifying the measured position of the communication terminal in response to a position notification request from the communication partner. In the terminal location notification method according to any one of claims 7 to 10,
The terminal location notification method, wherein the communication terminal is a mobile terminal. The terminal location notification method according to claim 11,
A terminal position notifying method, wherein the measurement of the position of the mobile terminal is continued according to the movement of the mobile terminal.

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