JP5061781B2 - Line connection control device, line connection control method, and line connection control program - Google Patents

Description

  The present invention relates to a line connection control device, a line connection control method, and a line connection for managing position information of a mobile communication terminal and controlling line connection between exchanges related to a line connection request related to the mobile communication terminal based on the position information It relates to the control program.

  Conventionally, in a mobile radio network, line connection control is performed in order to prevent congestion in which a number of line connection requests exceeding the processing capability of the node are concentrated on each node. Specifically, the line connection control device that realizes such control determines whether the line connection request from the mobile communication terminal should be given priority or not, and only the mobile communication terminal to be given priority connects to the line. To be controlled.

  The above-described control for connecting only the mobile communication terminals to be prioritized to the line is performed for the following reason. In other words, for example, due to the occurrence of a disaster, a request for connection to a line by a mobile communication terminal can be made not only for safety confirmation and communication between the victims, but also for the victims and distant families, as well as other information exchanges (including those by the field horse, for example) May increase rapidly and congestion may occur. It is desirable to prevent such congestion and connect the line connection request by the disaster victim's mobile communication terminal and the line connection request to the mobile communication terminal of the disaster victim with high urgency, giving priority to the line. Because it is.

  By the way, as a method for determining whether a line connection request should be given priority or not, for example, Patent Literature 1 discloses the following technique. That is, the congestion control device holds the current position of each mobile communication terminal generated using GPS (Global Positioning System) or the like as position information. When congestion occurs due to a disaster or the like, the congestion control device sets a predetermined range as a specific area. After that, when the congestion control device accepts the line connection request, the congestion control device determines whether it is a line connection request by the mobile communication terminal existing in the specific area, or exists in the specific area, depending on the held position information. It is determined whether it is a line connection request to the mobile communication terminal. As a result of the determination, the congestion control apparatus determines that a line connection request by a mobile communication terminal existing in a specific area or a line connection request to a mobile communication terminal existing in a specific area should be given priority, and the line The mobile communication terminal that has made the connection request is controlled so as to be preferentially connected to the line.

JP 2001-169360 A

  In the conventional technology described above, whether or not the mobile communication terminal that made the line connection request or the mobile communication terminal that is the connection destination of the line connection request exists in a specific area when the line connection request is received It is thus determined whether or not to perform line connection processing with priority over the accepted line connection request. By the way, after a disaster occurs, a disaster victim may take an action of leaving his / her site and notifying his / her own damage situation, for example, to escape difficulty. It is determined that a line connection request by such a victim's mobile communication terminal or a line connection request to such a mobile communication terminal should be given priority, and line connection processing is performed with priority on such a line connection request. Is desired.

  However, in the prior art, priority is given to a line connection request from a mobile communication terminal existing in a specific area and a line connection request to a mobile communication terminal existing in a specific area. Since it is connected to the line, it is not possible to continue the preferential line connection for the mobile communication terminal that has left the specific area. For this reason, a line connection request by a mobile communication terminal existing at the time of the designation within the range designated as an area where preferential line connection can be received, or a line connection request to such mobile communication terminal There is a problem that the priority of the line connection to cannot be continued outside the range.

  Therefore, the present invention has been made to solve the above-described problems of the prior art, and exists at the time when the designation is made within a range designated as an area where preferential line connection can be received. Provided is a line connection control device, a line connection control method, and a line connection control program capable of continuing the line connection priority for a line connection request by a mobile communication terminal or a line connection request to such a mobile communication terminal even outside the range. The purpose is to do.

  In order to solve the above-described problems and achieve the object, the present invention manages the location information of the mobile communication terminal, and based on the location information, connects the lines between the exchanges related to the line connection request related to the mobile communication terminal. A line connection control device that controls identification information providing means for assigning identification information to a mobile communication terminal existing within a predetermined range at a predetermined timing, and at least one of a connection source and a connection destination is the movement And a priority connection request means for requesting a priority line connection with respect to the line connection request when the identification information is given to the mobile communication terminal.

  Further, the present invention provides the displacement information holding means for holding the displacement of the position information as displacement information, the time information receiving means for receiving time information indicating the predetermined timing, and the predetermined range within the above invention. Area information receiving means for receiving area information to be indicated, and is held by the displacement information holding means based on the time information received by the time information receiving means and the area information received by the area information receiving means. The search means for searching for a mobile communication terminal that exists within a predetermined range at a predetermined timing based on the displacement information, and the identification information adding means are within the predetermined range at a predetermined timing by the search means. The identification information is given to the identified mobile communication terminal.

  Further, the present invention is characterized in that in the above-mentioned invention, an identification information erasing unit for erasing identification information given to a mobile communication terminal satisfying a predetermined condition is further provided.

  Further, the present invention is characterized in that, in the above invention, the identification information erasing means erases the identification information given to the mobile communication terminal based on an elapsed time since the identification information was given. .

  Further, the present invention is characterized in that, in the above-mentioned invention, the identification information erasing means erases the identification information given to the mobile communication terminal based on a movement state of the mobile communication terminal.

  Further, the present invention is the above invention, wherein the identification information erasing means erases the identification information given to the mobile communication terminal based on a deviation distance of the mobile communication terminal from the predetermined range. And

  Further, the present invention is a line connection control method for managing position information of a mobile communication terminal and controlling line connection between exchanges related to a line connection request related to the mobile communication terminal based on the position information, An identification information providing step for providing identification information to a mobile communication terminal existing within a predetermined range at a predetermined timing, and at least one of a connection source and a connection destination is the mobile communication terminal, and the mobile communication terminal A priority connection requesting step for requesting priority line connection with respect to the line connection request when the identification information is given.

  The present invention also provides a line connection for managing location information of a mobile communication terminal and causing a computer to execute a method for controlling line connection between exchanges related to a line connection request related to the mobile communication terminal based on the location information. A control program for providing identification information to a mobile communication terminal that exists within a predetermined range at a predetermined timing, and at least one of a connection source and a connection destination is the mobile communication terminal; When the identification information is given to the mobile communication terminal, the computer is caused to execute a priority connection request procedure for requesting a priority line connection with respect to the line connection request.

  According to the present invention, identification information is given to a mobile communication terminal that exists within a predetermined range at a predetermined timing, and at least one of a connection source and a connection destination is a mobile communication terminal, and the mobile communication terminal When identification information is given, a priority line connection is requested for the line connection request, so it exists within the range designated as an area where priority line connection can be received at the time when the designation is made. It is possible to continue the line connection priority for the line connection request by the mobile communication terminal or the line connection request to the mobile communication terminal even outside the range.

  According to the present invention, the displacement of the position information is held as displacement information, and time information indicating a predetermined timing and area information indicating a predetermined range are received. Then, based on the time information and the area information, the mobile communication terminal that exists in the predetermined range at the predetermined timing is searched from the displacement information. As a result of the search, the mobile communication terminal exists in the predetermined range at the predetermined timing. Identification information is given to the mobile communication terminal that has been found out. By doing in this way, it becomes possible to give identification information also to the mobile communication terminals that existed at an arbitrary timing from the past to the present or within a predetermined range during the period.

  According to the present invention, it is possible to remove the priority of the line connection that the mobile communication terminal has by deleting the identification information given to the mobile communication terminal.

  Exemplary embodiments of a line connection control apparatus according to the present invention will be explained below in detail with reference to the accompanying drawings.

[Configuration of mobile wireless network]
First, the configuration of a mobile radio network, which is a telephone network using a mobile communication terminal such as a mobile phone as a communication terminal, will be described with reference to FIG. FIG. 1 is a diagram illustrating a configuration example of a mobile radio network.

  As shown in FIG. 1, a line connection control device 10 according to the present invention is connected to a maintenance control device 20 and a plurality of mobile switching center devices 30a1 to 30an that can communicate with each other so that they can communicate with each other. The line connection control device 10 and the mobile switching center devices 30a1 to 30an are connected to another telephone network 50 through a gateway exchange. Thus, mobile communication terminals in different areas can communicate with each other, and mobile communication terminals and communication terminals such as fixed telephones can communicate with each other.

  A plurality of radio network controllers are respectively installed under the mobile switching center devices 30a1 to 30an, and the mobile switching center device 30a1 and the radio network control devices 40a1 to 40an are connected so as to be able to communicate with each other (others The same applies to the mobile switching center devices 30a2 to 30an).

  A plurality of base stations are respectively installed under the radio network control devices 40a1 to 40an, and the radio network control device 40a1 and the base stations 60a1 to 60an are connected to be communicable with each other (other radio network control devices). The same applies to 40a2 to 40an and other wireless network control devices). The radio network controller performs radio line control, line connection (end call) control, movement (handover) control, communication speed control, and the like.

  The base station communicates with the mobile communication terminal within the reach of the radio wave emitted by the base station, and relays the information received in the line connection request and location registration by the mobile communication terminal to the wireless network control device. Further, the base station relays information received from the radio network control device to the mobile communication terminal. In this embodiment, identification information (hereinafter referred to as a position information code) is assigned for each range of radio waves emitted by the base station, and the current position of the mobile communication terminal is indicated in units of such identification information.

[Outline and features of line connection control device]
Next, the outline and characteristics of the line connection control device in the mobile radio network will be described with reference to FIG. FIG. 2 is a diagram for explaining the outline and features of the line connection control device.

  The outline of the line connection control apparatus is that the location information of the mobile communication terminal is managed, and the line connection between exchanges related to the line connection request related to the mobile communication terminal is controlled based on the location information.

  Specifically, as shown in FIG. 2, the line connection control apparatus manages the positions of all mobile communication terminals with the position information code assigned for each range in which the radio wave emitted by the base station reaches. That is, each base station always transmits a unique position information code. When each mobile communication terminal receives the position information code, each mobile communication terminal similarly transmits a unique mobile communication terminal identifier to the base station that transmitted the position information code. The line connection control device receives the mobile communication terminal identifier thus transmitted to the base station via the radio network control device and the mobile switching center device. The line connection control device updates the mobile communication terminal identifier each time it is received, performs location registration, and manages the location information of the mobile communication terminal.

  Here, for example, when there is a line connection request from a mobile communication terminal, the line connection control device has a mobile communication terminal as a connection destination under any mobile switching center device based on the managed location information code The mobile switching center apparatus that places the connection source mobile communication terminal under control and the mobile switching center apparatus that places the connection destination mobile communication terminal under control are prompted to connect the line.

  The characteristics of this line connection control device will be described. The line connection control device gives identification information to a mobile communication terminal existing within a predetermined range at a predetermined timing. Then, when at least one of the connection source and the connection destination is a mobile communication terminal and identification information is given to the mobile communication terminal, the line connection control device prioritizes the communication terminal that has made the line connection request. Request a connected line. By doing so, a line connection request by the mobile communication terminal existing at the time of the designation within the range designated as an area where preferential line connection is possible, or a line to the mobile communication terminal The priority of line connection for connection requests can be continued even outside the range. The above is the feature of the line connection control device.

  Specifically, as shown in FIG. 2, the line connection control device gives identification information 80 to the mobile communication terminal 70 existing in the range of the position information code “01” at a predetermined timing. Thereafter, when there is a line connection request from the mobile communication terminal 70 or a line connection request to the mobile communication terminal 70, the line connection control device is provided on the condition that the identification information 80 is given to the mobile communication terminal 70. Then, a preferential line connection with respect to the line connection request is requested from the exchange station under which the connection source or connection destination communication terminal is subordinate. Thus, even if the mobile communication terminal 70 moves to the range of the location information code “02”, the mobile communication terminal 70 continues the line connection priority even outside the range of the location information code “01”. Can be received.

[Configuration of each node of mobile radio network]
Next, specific processing operations of each node of the mobile radio network, that is, the line connection control device 10, the maintenance control device 20, the mobile switching center device 30a1, and the radio network control device 40a1 will be described with reference to FIG. FIG. 3 is a block diagram showing the configuration of each node of the mobile radio network.

[Configuration and processing operation of maintenance control device]
The maintenance control device 20 includes an emergency setting transmission / reception unit 21 that is closely related to the present invention. The maintenance control device 20 receives an input of a position information code from a maintenance person who has determined a range for giving preferential line connection (the above-described range in which a radio wave emitted by the base station reaches) from a disaster situation or the like. Then, the maintenance control device 20 transmits the position information code to the line connection control device 10 by the emergency setting transmission / reception unit 21.

[Configuration and processing operation of wireless network control device]
The wireless network control device 40a1 includes a congestion detection unit 41 and a line connection processing unit 42 that are closely related to the present invention.

  The congestion detection unit 41 determines whether or not the wireless network control device 40a1 is in a congestion state. As a method for determining whether or not a congestion state occurs, for example, there is a method of monitoring the traffic volume of a wireless network and determining whether or not the traffic volume exceeds a certain level. When the congestion detection unit 41 determines that the congestion state is reached, the congestion detection unit 41 outputs a signal instructing the activation of emergency call control to the line connection processing unit 42. Emergency call control distinguishes line connection requests from mobile communication terminals into urgent or non-urgent, and denies line connections to mobile communication terminals that make non-urgent line connection requests. This is a control that returns a response.

  The line connection processing unit 42 receives a line connection request from the mobile communication terminal via the base station. Here, the line connection processing unit 42 determines whether or not to handle the line connection request as urgent when it receives a signal instructing the activation of emergency call control from the congestion detection unit 41. The request unit 13 is inquired via the mobile switching center device 30a1. On the other hand, when the line connection processing unit 42 has not received a signal instructing the activation of emergency call control, the line connection processing unit 42 proceeds to a line connection process as usual. For example, the line connection processing unit 42 transmits two mobile communication terminal identifiers of a connection source and a connection destination as such an inquiry.

  When the priority connection request unit 13 returns a response indicating that the line connection request is handled as urgent, the line connection processing unit 42 proceeds to line connection processing. On the other hand, when the priority connection request unit 13 returns a response that the line connection request is treated as not urgent, a response rejecting the line connection is returned to the mobile communication terminal via the base station.

[Configuration and processing operation of mobile switching center equipment]
The mobile switching center device 30a1 includes a congestion detection unit 31 and a line connection processing unit 32, which are closely related to the present invention.

  The congestion detector 31 determines whether or not the mobile switching center device 30a1 is in a congestion state. As a method for determining whether or not a congestion state occurs, for example, a method of monitoring the CPU usage rate and the remaining resource amount, and determining whether or not the CPU usage rate and the remaining resource amount exceed a certain value. There is. When the congestion detection unit 31 determines that the congestion state is reached, the congestion detection unit 31 outputs a signal instructing the line connection processing unit 32 to activate emergency call control. The emergency call control is a roaming request made by distinguishing a line connection request made by the line connection control unit 14 to be described later as urgent or non-urgent (the roaming request will be described later). On the other hand, in response to a roaming request that is distinguished from a non-urgent line connection request, a response for rejecting the line connection is returned.

  When the line connection processing unit 32 accepts the line connection processing by the line connection processing unit 42, the line connection processing unit 32 makes a routing request to the line connection control unit 14 described later. The routing request is that the mobile switching center device 30a1 makes an inquiry to the line connection control device 10 as to which mobile switching center device the mobile communication terminal that is the connection destination of the line is placed under.

  In addition, the line connection processing unit 32 receives a roaming request from the line connection control unit 14 described later. Note that the roaming request means that the line connection control device 10 instructs the corresponding mobile switching center device to connect the mobile switching center device under the mobile communication terminal that is the connection source of the line to the mobile switching center device. It is. Here, if the line connection processing unit 32 has received a signal instructing the activation of emergency call control from the congestion detection unit 31, the line connection processing unit 32 only receives a roaming request distinguished from an urgent line connection request. Transition to connection processing.

[Configuration and processing operation of line connection control device]
In particular, the line connection control device 10 includes a mobile communication terminal information storage unit 11, an emergency information management unit 12, a priority connection request unit 13, and a line connection control unit 14, as closely related to the present invention. Prepare. The emergency information management unit 12 corresponds to “identification information adding unit” described in the claims, and the priority connection request unit 13 and the line connection control unit 14 also correspond to “priority connection request unit”.

  The mobile communication terminal information storage unit 11 stores various information for each mobile communication terminal. Specifically, as shown in FIG. 4, the mobile communication terminal information storage unit 11 includes a mobile communication terminal identifier that uniquely identifies the mobile communication terminal, a position information code that indicates the position where the mobile communication terminal exists, The subordinate mobile switching center device identifier, which is identification information of the mobile switching center under which the mobile communication terminal is placed, and emergency location information used for determining whether or not the line connection request is urgent are stored in association with each other. For example, as shown in FIG. 3, the mobile communication terminal information storage unit 11 includes a mobile communication terminal identifier “A”, a location information code “01”, a subordinate mobile switching center device identifier “A1”, and an emergency location information “ 01 ”is stored in association with each other. FIG. 4 is a diagram illustrating an example of information stored in the mobile communication terminal information storage unit.

  The emergency information management unit 12 assigns identification information to a mobile communication terminal that exists within a predetermined range at a predetermined timing. Specifically, when the emergency information management unit 12 receives the position information code transmitted from the emergency setting transmission / reception unit 21 of the maintenance control device 20, the location of all mobile communication terminals stored in the mobile communication terminal information storage unit 11 is stored. Compare with information code. And the emergency information management part 12 stores the received positional information code as emergency positional information, when both correspond. For example, as shown in FIG. 4, the emergency information management unit 12 receives the position information code “01” and compares it with the position information codes of all mobile communication terminals. Then, as a result of the comparison, the emergency information management unit 12 matches the position information code “01” associated with the mobile communication terminal identifier “A” with the received position information code “01”. “01” is stored as emergency position information “01”.

  The priority connection request unit 13 gives priority to the communication terminal that has made the line connection request when at least one of the connection source and the connection destination is a mobile communication terminal and identification information is given to the mobile communication terminal. Request line connection. Specifically, the priority connection request unit 13 sends an inquiry from the line connection processing unit 42 of the radio network control device 40a1 in the emergency call control activated state as an inquiry as to whether or not to handle the line connection request as urgent. Two mobile communication terminal identifiers of connection destinations are received via the mobile switching center device 30a1. Then, the priority connection request unit 13 refers to the mobile communication terminal information storage unit 11, and when the information is stored in any of the emergency location information associated with the two mobile communication terminal identifiers, As a response, information indicating that the line connection request is urgent is transmitted to the line connection processing unit 42 via the mobile switching center device 30a1.

  When the priority connection requesting unit 13 receives an inquiry from the line connection control unit 14 that has received the routing request from the line connection processing unit 32 as to whether the line connection destination is handled as an urgent request, A response is made with reference to the communication terminal information storage unit 11. Specifically, when receiving the two mobile communication terminal identifiers from the line connection control unit 14, the priority connection requesting unit 13 reads out the subordinate mobile switching center device identifier associated with the connection destination mobile communication terminal identifier. Return to the line connection control unit 14. The priority connection requesting unit 13 also stores information indicating that the line connection request is urgent when the information is stored in any of the emergency location information associated with the two mobile communication terminal identifiers. Return to the connection control unit 14.

  The line connection control unit 14 gives priority to the communication terminal that has made the line connection request when at least one of the connection source and the connection destination is a mobile communication terminal and identification information is given to the mobile communication terminal. Request line connection. Specifically, when the line connection control unit 14 receives a routing request from the line connection processing unit 32 of the mobile switching center device 30a1, the line connection control unit 14 sends an urgent request to the priority connection request unit 13 and the line connection request. An inquiry as to whether or not to handle it is made by outputting two mobile communication terminal identifiers, a connection source and a connection destination. The line connection control unit 14 then makes a roaming request to the mobile switching center apparatus that is the connection destination of the line based on the subordinate mobile switching center apparatus identifier and information indicating that the line connection request is urgent.

[Line connection processing]
Next, the flow from the line connection request until the line is connected to the connection destination communication terminal will be described with reference to FIG. FIG. 5 is a sequence diagram showing an example of the flow of line connection processing.

  First, the line connection processing unit 42 of the wireless network control device 40a1 accepts a line connection request from a mobile communication terminal via a base station (see (1) in FIG. 5). If the congestion detection unit 41 has instructed the line connection processing unit 42 to activate emergency call control before that, the line connection processing unit 42 determines that the line connection request is urgent. It is inquired to the priority connection request unit 13 of the line connection control device 10 via the mobile switching center device 30a1 as to whether or not it is handled (see (2) in FIG. 5).

  Upon receiving the inquiry, the priority connection request unit 13 responds to the inquiry so as to treat it as an urgent one (see (3) in FIG. 5).

  When the line connection processing unit 42 receives the response from the priority connection requesting unit 13, it makes a line connection request to the line connection processing unit 32 of the mobile switching center device 30a1 (see (4) in FIG. 5).

  When receiving the line connection request from the line connection processing unit 42, the line connection processing unit 32 makes a routing request to the line connection control unit 14 of the line connection control device 10 (see (5) in FIG. 5).

  The line connection control unit 14 inquires the priority connection request unit 13 about the connection destination of the line and whether to handle the line connection request as urgent (see (6) in FIG. 5). The line connection control unit 14 receives from the priority connection request unit 13 a response instructing it to be treated as an urgent one, for example, together with the mobile switching center apparatus of the connection destination (see (7) in FIG. 5).

  Then, the line connection control unit 14 makes a roaming request that is distinguished from an urgent line connection request to the line connection processing unit of the mobile switching center apparatus that is the connection destination (see (8) in FIG. 5).

  When the line connection processing unit accepts such a roaming request, the line connection processing unit 32 performs the line connection processing if the congestion detection unit is instructed to activate emergency call control before that time. Then, line connection processing is performed via the wireless network control device and the base station for the connected mobile communication terminal (see (9) in FIG. 5).

[Processing by line connection control device]
Next, processing performed by the line connection control device 10 will be described with reference to FIGS. 6, 7, and 8. FIG. 6 is a flowchart showing the flow of emergency location information storage processing, FIG. 7 is a flowchart showing the flow of response processing to an inquiry by the radio network controller, and FIG. 8 is the flow of response processing for a routing request. It is a flowchart to show.

  First, as shown in FIG. 6, when the emergency information management unit 12 of the line connection control device 10 receives the location information code from the emergency setting transmission / reception unit 21 of the maintenance control device 20 (Yes in step S110), the mobile communication terminal information storage is performed. It compares with the position information code of each mobile communication terminal memorize | stored by the part 11 (step S120).

  Then, the emergency information management unit 12 stores the received position information code as emergency position information only when the two match (Yes at Step S130) (Step S140).

  And the emergency information management part 12 will transmit the information which shows the completion of a setting to the emergency setting transmission / reception part 21, if the comparison with the positional information code for all the mobile communication terminals is complete (step S150 affirmation) (step S160). Note that the series of processing from step S110 to step S160 is repeatedly performed while the line connection control device 10 operates.

  Further, as shown in FIG. 7, the priority connection request unit 13 of the line connection control device 10 makes an inquiry from the line connection processing unit 42 of the wireless network control device 40a1 as to whether or not to handle the line connection request as urgent. If accepted (Yes at Step S170), the mobile communication terminal information storage unit 11 is referred to based on the two mobile communication terminal identifiers received in the inquiry (Step S180).

  Then, when information is stored in either of the emergency location information associated with the two mobile communication terminal identifiers (Yes in step S190), the priority connection request unit 13 indicates that the line connection request is urgent. Is made (step S200). On the other hand, if no information is stored in any of the emergency location information (No at Step S190), the priority connection request unit 13 responds that the line connection request is not urgent (Step S210). Note that the series of processing from step S170 to step S210 is repeatedly performed while the line connection control device 10 operates.

  Also, as shown in FIG. 8, when the line connection control unit 14 of the line connection control device 10 accepts a routing request (Yes at Step S220), the priority connection requesting unit 13 determines that the line connection control unit 14 The mobile communication terminal information storage unit 11 is referred to based on the received two mobile communication terminal identifiers (step S230).

  If the information is stored in one of the emergency location information associated with the two mobile communication terminal identifiers in the reference by the priority connection request unit 13 (Yes in step S240), the line connection control unit 14 Then, a roaming request that is classified into an urgent line connection request is made to the connected mobile switching center apparatus (step S250). On the other hand, if no information is stored in any of the emergency location information (No at Step S240), the line connection control unit 14 makes a roaming request that is distinguished from a non-emergency line connection request (Step S260). Note that the series of processing from step S220 to step S260 is repeatedly performed while the line connection control device 10 operates.

[Effect of Example 1]
As described above, according to the first embodiment, identification information is given to a mobile communication terminal that exists within a predetermined range at a predetermined timing, and at least one of a connection source and a connection destination is a mobile communication terminal. When the identification information is given to the mobile communication terminal, a priority line connection is requested to the communication terminal that has made the line connection request. By doing so, a line connection request by the mobile communication terminal existing at the time of the designation within the range designated as an area where preferential line connection is possible, or a line to the mobile communication terminal It is possible to continue the priority of the line connection with respect to the connection request even outside the range.

  In the first embodiment described above, the identification information is given to the mobile communication terminals existing within the range specified at the timing when the position information code is received from the maintenance control device, with the range of the radio wave emitted by the base station as a unit. However, the present invention is not limited to this, and any identification information can be given to mobile communication terminals that exist within a predetermined range at a predetermined timing. You may determine the object which provides identification information using a method.

  For example, the displacement of the position information is held as the displacement information, and time information indicating a predetermined timing (or a period) and area information indicating a predetermined range are received. Then, based on the time information and the area information, a mobile communication terminal that exists within a predetermined range at a predetermined timing may be searched from the held displacement information, and a target to which identification information is to be assigned may be determined. In addition, by holding displacement information in this way, identification information can be given to mobile communication terminals that exist within a predetermined range at any timing from the past to the present or during a period. It becomes.

  In the second embodiment, a case will be described in which the priority of the line connection that the mobile communication terminal has is deprived by deleting the position information code stored as the emergency position information.

[Configuration of line connection control device]
The configuration of the line connection control apparatus 10 according to the second embodiment will be described with reference to FIG. FIG. 9 is a block diagram illustrating the configuration of the line connection control apparatus 10 according to the second embodiment. As shown in the figure, the line connection control device 10 includes a mobile communication terminal information storage unit 11, an emergency information management unit 12, a priority connection request unit 13, and a line connection control unit 14, as well as an embodiment. 1, the emergency position information erasing unit 15 is further provided. The emergency position information erasure unit 15 corresponds to “identification information erasure means” described in the claims. The priority connection request unit 13 and the line connection control unit 14 operate in the same manner as in the first embodiment, and thus description thereof is omitted.

  The mobile communication terminal information storage unit 11 stores various information for each mobile communication terminal. Specifically, as shown in FIG. 10, the mobile communication terminal information storage unit 11 includes, in addition to the mobile communication terminal identifier, the location information code, the subordinate mobile switching center device identifier, and the emergency location information, The erasure condition identification information indicating the type of condition for erasing the position information code stored as the emergency position information is stored in association with the condition establishment determination information that is information used to determine whether or not the condition is satisfied. To do. FIG. 10 is a diagram illustrating an example of information stored in the mobile communication terminal information storage unit 11.

  For example, as shown in FIG. 10, the mobile communication terminal information storage unit 11 further stores erasure condition identification information “fixed time” and condition establishment determination information “300 minutes” in association with each other.

  Unlike the first embodiment, the emergency information management unit 12 receives the erasure condition identification information and the condition establishment determination information from the emergency setting transmission / reception unit 21 of the maintenance control device 20 together with the position information code.

  And the emergency information management part 12 compares with the positional information code of all the mobile communication terminals memorize | stored by the mobile communication terminal information storage part 11 similarly to Example 1. FIG.

  Then, when the two match, the emergency information management unit 12 stores the received position information code as emergency position information, and also differs from the first embodiment regarding the received erasure condition identification information and condition establishment determination information. Store in the corresponding location (see FIG. 10).

  The emergency location information erasure unit 15 erases the identification information given to the mobile communication terminal that satisfies a predetermined condition. In the following, as examples of the predetermined condition, identification information has been given until a predetermined time, the total of the moving distance of the mobile communication terminal has exceeded a predetermined value, and a predetermined range from the mobile communication terminal The processing operation of the emergency position information erasure unit 15 until each condition is established and the identification information is erased will be described by giving that the distance to the boundary becomes a predetermined value or more.

  First, an example will be described in which the identification information given to the mobile communication terminal satisfying the condition is deleted on the condition that the identification information is given until a predetermined time.

  First, the emergency information management unit 12 performs the above processing when the information received from the emergency setting transmission / reception unit 21 of the maintenance control device 20 includes the erasure condition identification information “certain time”. The received position information code is also stored in a predetermined storage unit different from the mobile communication terminal information storage unit 11.

  The emergency position information erasure unit 15 measures the time with a timer when the urgent information management unit 12 stores the erasure condition identification information “certain time” and the condition establishment determination information “300 minutes” in a predetermined location. And monitor the passage of time for 300 minutes.

  Then, after 300 minutes have elapsed, the emergency location information erasure unit 15 compares the emergency location information of all mobile communication terminals with the location information code stored in a predetermined storage unit. Then, the emergency position information erasure unit 15 includes the erasure condition identification information “certain time” associated with the emergency position information and the condition establishment judgment including the emergency position information to be compared if both match. The information “300 minutes” is also deleted.

  Next, an example will be described in which the identification information given to the mobile communication terminal that satisfies the condition is erased on the condition that the total travel distance of the mobile communication terminal has reached a predetermined value or more.

  When the emergency information management unit 12 stores the deletion condition identification information “number of movements” and the condition establishment determination information “5” in a predetermined location, the emergency location information deletion unit 15 will It monitors the number of times the location information code is updated when it moves from one base station to another base station (at the time of location registration).

  Then, when the emergency location information erasure unit 15 is updated “5” times, which is the number indicated by the condition establishment determination information, the emergency location information stored in association with the corresponding mobile communication terminal identifier, Erase condition identification information “number of movements” and condition establishment determination information “5” are erased.

  Next, an example will be described in which the identification information given to the mobile communication terminal that satisfies the condition is deleted on the condition that the distance from the mobile communication terminal to the boundary of the predetermined range is equal to or greater than a predetermined value.

  The emergency location information erasure unit 15 updates the location information code in location registration when the emergency information management unit 12 stores the erasure condition identification information “movement distance” and the condition establishment determination information “3 Km” at predetermined locations. Each time, the distance between the two points is calculated by, for example, referring to the map information stored in a predetermined storage unit for the updated position information code and the emergency position information.

  Then, when the calculated distance between the two points is equal to or greater than “3 Km” that is the distance indicated by the condition establishment determination information, the emergency position information erasing unit 15 stores the distance in association with the corresponding mobile communication terminal identifier. The urgent location information, the erasure condition identification information “movement distance”, and the condition establishment determination information “3 Km” are erased.

[Effect of Example 2]
As described above, according to the second embodiment, for mobile communication terminals that satisfy a predetermined condition, it is possible to remove the priority of line connection that the mobile communication terminal has.

  Although the embodiments of the present invention have been described so far, the present invention may be implemented in various different forms other than the embodiments described above. Therefore, as shown below, different embodiments will be described by dividing each into (1) and (2).

(1) Deletion of identification information In the second embodiment, the case where the identification information is deleted because a predetermined condition is satisfied has been described. However, the present invention is not limited to this, and the line connection As long as the identification information is erased from the mobile communication terminal whose priority is deprived, the identification information may be erased by any method. For example, the target mobile communication terminal may be directly designated and the identification information may be deleted from the mobile communication terminal.

(2) System Configuration The components of the illustrated devices are functionally conceptual and need not be physically configured as illustrated. That is, the specific form of distribution / integration of each device is not limited to the one shown in the figure. For example, all or a part of the priority connection request unit 13 and the line connection control unit 14 are integrated with various loads and uses. Depending on the situation, it can be configured to be functionally or physically distributed and integrated in arbitrary units. Further, all or any part of each processing function performed in each device may be realized by a CPU and a program analyzed and executed by the CPU, or may be realized as hardware by wired logic.

  As described above, the line connection control device, the line connection control method, and the line connection control program according to the present invention manage the location information of the mobile communication terminal and relate to the line connection request related to the mobile communication terminal based on the location information. Useful for controlling line connections between switching centers, and line connection requests by mobile communication terminals that existed at the time of the designation within the area designated as an area where preferential line connections can be received Or, it is suitable for enabling the priority of line connection to the line connection request to the mobile communication terminal to be continued even outside the range.

It is a figure which shows the structural example of a mobile radio network. It is a figure for demonstrating the outline | summary and the characteristic of a line connection control apparatus. It is a block diagram which shows the structure of each node of a mobile radio network. It is a figure which shows the example of the information which a mobile communication terminal information storage part memorize | stores. It is a sequence diagram which shows an example of the flow of a line connection process. It is a flowchart which shows the flow of an emergency position information storage process. It is a flowchart which shows the flow of the response process with respect to the inquiry by a wireless network control apparatus. It is a flowchart which shows the flow of the response process with respect to a routing request. FIG. 6 is a block diagram illustrating a configuration of a line connection control device according to a second embodiment. It is a figure which shows the example of the information which a mobile communication terminal information storage part memorize | stores.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Line connection control apparatus 11 Mobile communication terminal information storage part 12 Emergency information management part 13 Priority connection request part 14 Line connection control part 15 Emergency position information deletion part 20 Maintenance control apparatus 21 Emergency setting transmission / reception part 30a1-30an Mobile switching center apparatus 31 Congestion detection unit 32 Line connection processing unit 40a1 to 40an Wireless network control device 41 Congestion detection unit 42 Line connection processing unit 50 Other telephone network

Claims (7)

A line connection control device that manages position information of a mobile communication terminal and controls line connection between exchanges related to a line connection request related to the mobile communication terminal based on the position information;
Displacement information holding means for holding displacement of the position information as displacement information ;
And time information receiving means for receiving the time information indicating the timing of Jo Tokoro,
And area information receiving means for receiving area information indicating the range of Jo Tokoro,
And time information received by the time information receiving means, wherein based on the area information received by the area information receiving means, from the displacement information held by the displacement information holding means, said predetermined range to said predetermined timing Search means for searching for mobile communication terminals existing in
An identification information assigning means for assigning identification information to the mobile communication terminal was found that was present within the predetermined range to the predetermined timing by said search means,
Priority connection requesting means for requesting a priority line connection for the line connection request when at least one of a connection source and a connection destination is the mobile communication terminal and the identification information is given to the mobile communication terminal; ,
A line connection control device comprising:   2. The line connection control device according to claim 1, further comprising identification information erasing means for erasing identification information given to the mobile communication terminal satisfying a predetermined condition.   3. The line connection control device according to claim 2, wherein the identification information erasing unit erases the identification information given to the mobile communication terminal based on an elapsed time since the identification information was given.   3. The line connection control apparatus according to claim 2, wherein the identification information erasing unit erases the identification information given to the mobile communication terminal based on a movement state of the mobile communication terminal.   3. The line connection control according to claim 2, wherein the identification information erasure unit erases the identification information given to the mobile communication terminal based on a deviation distance from the predetermined range of the mobile communication terminal. apparatus. A line connection control method for managing position information of a mobile communication terminal and controlling line connection between exchanges related to a line connection request related to the mobile communication terminal based on the position information ,
And time information reception step of receiving the time information indicating the timing of Jo Tokoro,
And area information receiving step of receiving the area information indicating the range of Jo Tokoro,
Based on the time information received by the time information receiving step and the region information received by the region information receiving step, the displacement information held by the displacement information holding means for holding the displacement of the position information as displacement information, a search step of searching for a mobile communication terminal exists within the predetermined range to the predetermined timing,
An identification information addition step of applying the identification information to the mobile communication terminal was found that was present within the predetermined range to the predetermined timing by said searching step,
A priority connection requesting step for requesting a priority line connection for the line connection request when at least one of a connection source and a connection destination is the mobile communication terminal and the identification information is given to the mobile communication terminal; ,
A circuit connection control method comprising: A line connection control program for managing position information of a mobile communication terminal and causing a computer to execute a method for controlling line connection between switching offices related to a line connection request related to the mobile communication terminal based on the position information ,
And time information acceptance procedure that accepts the time information indicating the timing of Jo Tokoro,
And area information reception process for receiving the area information indicating the range of Jo Tokoro,
Based on the time information received by the time information reception procedure and the region information received by the region information reception procedure, the displacement information held by the displacement information holding means for holding the displacement of the position information as displacement information, a search procedure for searching for a mobile communication terminal exists within the predetermined range to the predetermined timing,
And identification information adding To grant identification information to the mobile communication terminal was found that was present within the predetermined range to the predetermined timing by the search procedure,
A priority connection request procedure for requesting a priority line connection to the line connection request when at least one of a connection source and a connection destination is the mobile communication terminal and the identification information is given to the mobile communication terminal; ,
A line connection control program for causing a computer to execute.

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