JP2006080694A - Communication system and subscriber information transmission method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system and a subscriber information transmission method capable of enhancing the prediction accuracy of an area wherein a mobile unit resides. <P>SOLUTION: The mobile unit 10 includes: a read section 13 for reading for particularizing a moving destination of the mobile unit 10 at a start point of a path through which the mobile unit 10 moves; and a transmission section 12 for transmitting the moving destination particularizing information read by the read section 13 to an HLR 40, and the HLR 40 includes: a VLR particularizing section 45 for particularizing a VLR 30 corresponding to an area including a moving destination of the mobile unit; and a transmission section 42 for transmitting subscriber information to the VLR 30 particularized by the VLR discrimination section 45 before the mobile unit moves in a VLR area corresponding to the particularized VLR 30. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  A subscriber information management device for managing subscriber information including identification information for identifying a subscriber of a mobile device, and a subscriber information storage device for storing subscriber information corresponding to a mobile device existing in the area are provided. The present invention relates to a communication system and a subscriber information transmission method.

  2. Description of the Related Art Conventionally, an HLR (Home Location Register) that manages subscriber information including identification information for identifying a subscriber of a mobile device and a plurality of VLRs (Visitor Location Register) that manage the location of the mobile device for each area are provided. Communication systems are known.

  In this communication system, the HLR transmits subscriber information corresponding to the mobile device to the VLR corresponding to the area where the mobile device exists (is located).

  Further, in this communication system, in order to equalize the processing load generated when transmitting subscriber information to the VLR, the HLR predicts the destination of the mobile device (hereinafter referred to as the destination area) and predicts it. There has been proposed a method of transmitting subscriber information to a VLR corresponding to a predicted destination area before the mobile device moves to the destination area.

Specifically, the HLR is based on history information about the area where the mobile device has been in the past (for example, the number of times the mobile device has been in the area, the time that the mobile device has been in the area, and the pattern of the area in which the mobile device is in) An area where the mobile device is likely to be in the area is predicted, and before the mobile device moves to the predicted area, subscriber information is transmitted to the VLR corresponding to the predicted area (for example, Patent Document 1).
JP 2004-32643 A

  As described above, in the conventional communication system, the HLR predicts an area where the mobile device is likely to be located based on the history information regarding the area where the mobile device was previously located. The mobile device may not move to the area predicted by the HLR, such as when the mobile device moves to an area where it has never been.

  Thus, there is a possibility that an area prediction error due to HLR may occur, and subscriber information may be transmitted unnecessarily. Therefore, it is desired to improve the prediction accuracy of the area where the mobile station is located.

  Accordingly, the present invention has been made to solve the above-described problems, and provides a communication system and a subscriber information transmission method capable of improving the prediction accuracy of an area where a mobile device is located. With the goal.

  According to a first aspect of the present invention, a subscriber information management device for managing subscriber information including identification information for identifying a subscriber of a mobile device, and subscriber information corresponding to a mobile device existing in the area are stored. In a communication system including a subscriber information storage device, a mobile unit reads a destination specification information for specifying a destination of the mobile unit at a starting point of a route along which the mobile unit moves, and a reading unit An area that includes a transmission unit that transmits the read destination identification information to the subscriber information management device, and the subscriber information management device includes the destination of the mobile device based on the destination specification information received from the mobile device An area corresponding to the specified subscriber information storage device, a subscriber information storage device specifying unit for specifying a subscriber information storage device corresponding to the subscriber information storage device, and a subscriber information storage device specified by the subscriber information storage device specifying unit Move in Before the machine is moved, and summarized in that a transmitting portion for transmitting subscriber information.

  According to such a feature, the subscriber information management device has the destination identification information read by the mobile device at the starting point of the route along which the mobile device travels (for example, the departure station on the train and the exit station from which the train gets off). By identifying the subscriber information storage device corresponding to the area including the destination of the mobile device based on the information to be specified, the communication system can improve the prediction accuracy of the area where the mobile device is located. it can.

  In addition, the subscriber information management device is connected to the subscriber information storage device specified by the subscriber information storage device specifying unit before the mobile device moves into the area corresponding to the specified subscriber information storage device. By transmitting the information, the communication system can achieve a uniform processing load that occurs when the subscriber information is transmitted to the subscriber information storage device.

  A second feature of the present invention is the route according to the first feature of the present invention, wherein the subscriber information storage device specifying unit acquires route information corresponding to a route on which the mobile device moves based on the destination specifying information. The gist is to specify an subscriber information storage device corresponding to an area including a destination of the mobile device based on the route information acquired by the route information acquisition unit.

  According to this feature, the subscriber information management device specifies the subscriber information storage device corresponding to the area including the destination of the mobile device based on the route information acquired based on the destination specification information. , The communication system has a shortage of destination identification information (for example, information specifying the boarding station where the train is boarded and information specifying whether the train is an up or down train) Even when there is no information for specifying the station to get off, the prediction accuracy of the area where the mobile device is located can be improved.

  A third feature of the present invention is that, in the second feature of the present invention, a plurality of radio stations each managing a mobile device existing in a plurality of radio station areas included in an area corresponding to the subscriber information storage device When the mobile station moves into the radio station area corresponding to the radio station, the subscriber information management device receives location information indicating that the mobile station has moved into the radio station area. The gist is that the route information acquisition unit transmits the route information based on the position information received from the wireless station.

  According to this feature, the subscriber information management apparatus receives position information indicating that the mobile device has moved into the wireless station area from the wireless station, so that the communication system can easily determine the moving direction of the mobile device. Can be identified.

  Therefore, even if the communication system has insufficient destination identification information (for example, only information for specifying the boarding station on which the train is boarded, and no information for specifying the getting-off station for getting off the train). The route information corresponding to the route on which the mobile device travels (for example, the route of the train on which the user carrying the mobile device rides) can be easily obtained, and the prediction accuracy of the area where the mobile device is located can be improved. Can be planned.

  According to a fourth aspect of the present invention, in the first to third aspects of the present invention, the subscriber information management device is a subscriber information storage device and subscriber information specified by the subscriber information storage device specifying unit. A monitoring unit that monitors a load state of a communication path to and from the management device, and the transmission unit of the subscriber information management device subscribes when the load state monitored by the monitoring unit is equal to or less than a predetermined threshold. The gist is to transmit the subscriber information to the subscriber information storage device specified by the subscriber information storage device specifying unit.

  According to this feature, the subscriber information management device joins the subscriber information storage device specified by the subscriber information storage device specifying unit when the load status monitored by the monitoring unit is equal to or less than a predetermined threshold. By transmitting the subscriber information, the communication system can further equalize the processing load generated when the subscriber information is transmitted to the subscriber information storage device.

  According to a fifth aspect of the present invention, a subscriber information management device for managing subscriber information including identification information for identifying a subscriber of a mobile device, and subscriber information corresponding to a mobile device existing in the area are stored. In a communication system including a subscriber information storage device, a subscriber information transmission method for transmitting subscriber information from a subscriber information management device to a subscriber information storage device, wherein the mobile device specifies a destination of the mobile device Information on the destination of the mobile device, and the subscriber information corresponding to the area including the destination of the mobile device based on the step of reading the destination specific information read by the mobile device. Identifying a storage device, and transmitting subscriber information to the identified subscriber information storage device before the mobile station moves into an area corresponding to the identified subscriber information storage device. The And effect.

  ADVANTAGE OF THE INVENTION According to this invention, the communication system and subscriber information transmission method which can aim at the improvement of the prediction precision of the area where a mobile station is located can be provided.

(Configuration of communication system according to one embodiment of the present invention)
The configuration of a communication system according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a communication system according to an embodiment of the present invention.

As shown in FIG. 1, the communication system includes a mobile device 10, a plurality of RNCs 20 _{a-1 to} RNC 20 _cn , a plurality of VLRs 30 a to VLR 30 c, an HLR 40, and a path information DB 50.

  The mobile device 10 is a terminal that transmits voice data, packet data, and the like to other mobile devices and receives voice data, packet data, and the like from other mobile devices. Details of the mobile device 10 will be described later (see FIG. 2).

  In the present embodiment, the mobile device 10 moves from a starting point in the RNC area a-1 to a destination in the RNC area cn along a predetermined route (for example, a train route or a highway). It shall move to the ground.

  Here, the departure point is a starting point of a route along which the mobile device 10 moves (for example, a boarding station on a train or an entrance to a highway). Further, the destination is the final point of the route along which the mobile device 10 moves (for example, a disembarking station that gets off the train or an exit of the highway).

  The RNC 20 is a radio network controller that manages the mobile device 10 that exists (is located) in the RNC area corresponding to the RNC 20. Further, the RNC 20 transmits information received from the mobile device 10 to the VLR 30 and transmits information received from the VLR 30 to the mobile device 10.

  The VLR 30 functions as a subscriber information storage device that stores subscriber information corresponding to the mobile device 10 existing (located) in the VLR area corresponding to the VLR 30. In addition, the VLR 30 manages the position information of the mobile device 10 located in the VLR area corresponding to the VLR 30. Details of the VLR 30 will be described later (see FIG. 3).

  The HLR 40 is a subscriber information management device that manages subscriber information including identification information for identifying a subscriber of the mobile device 10 (for example, IMSI (International Mobile Subscriber Identity)). In addition to the identification information for identifying the subscriber, the subscriber information includes a QoS parameter corresponding to a service subscribed to by the subscriber. Details of the HLR 40 will be described later (see FIG. 4).

  The route information DB 50 manages the route information (VLR identifier) corresponding to the departure point described above, the destination described above, and the route through which the mobile device 10 moves from the departure point to the destination. It is a database. Details of the information managed by the route information DB 50 will be described later (see FIG. 7).

  Hereinafter, details of the mobile device 10 described above will be described with reference to the drawings. FIG. 2 is a block diagram showing the mobile device 10 according to an embodiment of the present invention.

  As shown in FIG. 2, the mobile device 10 includes a reception unit 11, a transmission unit 12, a reading unit 13, and a control unit 14.

  The reception unit 11 receives a control signal or the like from the RNC 20, and the transmission unit 12 transmits a control signal or the like to the RNC 20.

  The reading unit 13 reads destination information for specifying the destination of the mobile device 10 at the departure point described above.

  Specifically, the reading unit 13 reads destination identification information from a recording medium such as a ticket, a commuter pass, and a coupon ticket at a boarding station where the train rides. At this time, the reading unit 13 may read the destination information directly from the storage medium by using a technique such as RFID, or may read the destination identification information once read by the ticket gate provided at the boarding station. Good.

  Further, the reading unit 13 may read the destination specifying information using a technique such as ETC at the entrance (toll gate) of the highway.

  The destination specifying information includes departure point information for specifying the departure point of the mobile device 10, destination information for specifying the destination of the mobile device 10, and a name of a route along which the mobile device 10 moves from the departure point (for example, , Train route name, expressway name), and information such as information specifying the direction in which the mobile device 10 moves (for example, ascending train, descending train, ascending lane, descending lane).

  The storage medium is, for example, a CD-ROM, PD, MO, DVD-ROM, DVD-RAM, RAM, ROM, flexible disk, flash memory, memory stick, smart media, hard disk, and stores destination identification information. Any medium that can be used may be used.

  The control unit 14 controls the reception unit 11, the transmission unit 12, and the reading unit 13 described above. Specifically, the control unit 14 controls the transmission unit 12 to transmit the movement destination specifying information read by the reading unit 13 to the HLR 40 (via the RNC 20).

  In addition, the control unit 14 determines in which area (RNC area or VLR area) the mobile device 10 is located by measuring the SIR or the like of the control signal received by the receiving unit 11. At this time, if it is determined that the mobile device 10 has moved to a new area, the control unit 14 sends a control signal (for example, a location registration request) indicating that the mobile device 10 has moved to a new area to a device ( The transmission unit 12 is controlled to transmit to the RNC 20 or VLR 30).

  Details of the VLR 30 described above will be described below with reference to the drawings. FIG. 3 is a block diagram showing the VLR 30 according to an embodiment of the present invention.

  As illustrated in FIG. 3, the VLR 30 includes a reception unit 31, a transmission unit 32, a location information management unit 33, and a control unit 34.

  The receiving unit 31 receives control signals and the like from the RNC 20 and the HLR 40, and the transmitting unit 32 transmits control signals and the like to the RNC 20 and the HLR 40.

  The location information management unit 33 manages location information of the mobile device 10 located in the VLR area corresponding to the VLR 30.

  Specifically, as illustrated in FIG. 5, the location information management unit 33 includes an identifier of the mobile device 10 (mobile device identifier) and an identifier of the RNC 20 corresponding to the RNC area where the mobile device 10 is located (RNC identifier). To associate and manage. Further, the location information management unit 33 manages the subscriber information corresponding to the mobile device 10 located in the VLR area corresponding to the VLR 30 in association with the mobile device identifier. Further, the location information management unit 33 manages the destination identification information received from the mobile device 10 in association with the mobile device identifier.

  The control unit 34 controls the reception unit 31, the transmission unit 32, and the position information management unit 33 described above.

  Specifically, when receiving a location information registration request from the mobile device 10, the control unit 34 causes the location information management unit 33 to manage the location information of the mobile device 10. In addition, the control unit 34 controls the transmission unit 32 to transmit a location information update request for updating the location information of the mobile device 10 managed by the HLR 40 to the HLR 40.

  Details of the HLR 40 described above will be described below with reference to the drawings. FIG. 4 is a block diagram showing the HLR 40 according to an embodiment of the present invention.

  As shown in FIG. 4, the HLR 40 includes a receiving unit 41, a transmitting unit 42, a location information management unit 43, a subscriber information management unit 44, a VLR specifying unit 45, a load status monitoring unit 46, and a control unit. 47.

  The receiving unit 41 receives control signals and the like from the VLR 30 and the path information DB 50, and the transmitting unit 42 transmits control signals and the like to the VLR 30 and the path information DB 50.

  The location information management unit 43 manages location information of the mobile device 10. Specifically, as shown in FIG. 6A, the location information management unit 43 obtains the identifier of the mobile device 10 (mobile device identifier) and the RNC identifier corresponding to the RNC area where the mobile device 10 is located. Manage in association. Further, the location information management unit 43 manages the identifier (VLR identifier) of the VLR 30 corresponding to the VLR area where the mobile device 10 is located in association with the mobile device identifier. Further, the location information management unit 33 manages the destination identification information received from the mobile device 10 in association with the mobile device identifier.

  The subscriber information management unit 44 manages the subscriber information described above. Specifically, as shown in FIG. 6B, the subscriber information management unit 44 manages the identifier of the mobile device 10 (mobile device identifier) in association with the subscriber information corresponding to the mobile device 10. To do.

  The VLR specifying unit 45 specifies the VLR 30 corresponding to the VLR area including the destination of the mobile device 10 based on the destination specification information received from the mobile device 10.

  Specifically, the VLR specifying unit 45 acquires route information corresponding to the route on which the mobile device 10 moves based on the destination specification information received from the mobile device 10. At this time, the VLR specifying unit 45 refers to the route information DB 50 and acquires a VLR identifier corresponding to the route along which the mobile device 10 moves as route information. In addition, the VLR specifying unit 45 specifies the VLR 30 corresponding to the VLR area to which the mobile device 10 moves next based on the acquired VLR identifier.

  The VLR specifying unit 45 specifies not only the VLR 30 corresponding to the VLR area to which the mobile device 10 will move next, but also VLRs 30 corresponding to all the VLR areas that the mobile device 10 passes when moving to the destination. May be.

  The load status monitoring unit 46 monitors the load status of the communication path between the VLR 30 and the HLR 40 specified by the VLR specifying unit 45. Specifically, the load status monitoring unit 46 monitors the CPU usage rate of a router, an exchange, or the like that relays data between the VLR 30 and the HLR 40, the traffic amount of the communication line between the VLR 30 and the HLR 40, and the like.

  The control unit 47 controls the reception unit 41, the transmission unit 42, the location information management unit 43, the subscriber information management unit 44, the VLR specifying unit 45, and the load status monitoring unit 46 described above.

  Specifically, the control unit 47 transmits subscriber information to the VLR 30 specified by the VLR specifying unit 45 before the mobile device 10 moves to the VLR area corresponding to the VLR 30 specified by the VLR specifying unit 45. Thus, the transmission unit 42 is controlled. At this time, the control unit 47 controls the transmission unit 42 to transmit the subscriber information to the VLR 30 when the load status monitored by the load status monitoring unit 46 is equal to or less than a predetermined threshold.

  The predetermined threshold value can be arbitrarily set by the administrator of the communication system and is a value for determining whether or not to transmit subscriber information to the VLR 30.

  Further, the control unit 47 determines whether to transmit the subscriber information before the mobile device 10 moves to the VLR area corresponding to the specified VLR 30 according to the load status monitored by the load status monitoring unit 46. It may be determined whether to transmit the subscriber information after the mobile device 10 moves to the VLR area corresponding to the VLR 30 that has been made.

  For example, when the load on the communication path between the VLR 30 and the HLR 40 specified by the VLR specifying unit 45 is very light, the control unit 47 moves the mobile device 10 to the VLR area corresponding to the specified VLR 30. It is determined that the subscriber information is transmitted after the mobile device 10 moves to the VLR area corresponding to the specified VLR 30 instead of the previous one.

  Details of the information managed by the route information DB 50 will be described below with reference to the drawings. FIG. 7 is a diagram showing information managed by the route information DB 50 according to an embodiment of the present invention.

  As shown in FIG. 7, the route information DB 50 includes the above-described departure place (for example, a boarding station or a highway entrance on which a train is boarded) and the above-described destination (for example, a disembarkation station or highway exit that gets off from a train). ) And route information (VLR identifier) corresponding to a route along which the mobile device 10 moves from the departure point to the destination.

  For example, the route information DB 50 includes a departure place (“A station”), a destination (“B station”), and a VLR identifier (corresponding to a route along which the mobile device 10 moves from “A station” to “B station”). “A” and “b”) are associated and managed. Similarly, the route information DB 50 includes a VLR identifier corresponding to a departure place (“B station”), a destination (“D station”), and a route along which the mobile device 10 moves from “B station” to “D station”. ("B", "c", and "d") are managed in association with each other.

  In the present embodiment, the route information DB 50 is provided separately from the HLR 40, but is not limited to this, and may be provided as a part of the HLR 40.

  In the present embodiment, the communication system is provided for each of a plurality of areas (VLR area a to VLR area c), and includes a plurality of VLRs 30 that store subscriber information corresponding to the mobile devices 10 existing in the area. Although described as being provided, the present invention is not limited to this, and one VLR 30 may centrally manage subscriber information.

  Further, in the present embodiment, the VLR 30 (location information management unit 33) manages subscriber information corresponding to the mobile device 10 in addition to the location information (RNC identifier) of the mobile device 10, as shown in FIG. Although described as a thing, it is not limited to this, You may manage location information and subscriber information separately.

  In addition, a device (subscriber information storage device) that stores subscriber information corresponding to the mobile device 10 and a device that manages location information of the mobile device 10 may be provided separately.

(Operation of Communication System According to One Embodiment of the Present Invention)
Hereinafter, the operation of the communication system according to an embodiment of the present invention will be described with reference to the drawings. 8 and 9 are flowcharts showing the operation of the communication system according to the embodiment of the present invention.

  In the present embodiment, description will be made assuming that the mobile device 10 moves from the RNC area a-1 (“A station”) to the RNC area cn (“C station”). That is, in this embodiment, the departure place is “A station” and the destination is “C station”.

  First, the operation of the communication system when the mobile device 10 reads the destination identification information at the departure place (“Station A”) will be described with reference to the drawings.

  As shown in FIG. 8, in step 11, the mobile device 10 moves to specify the destination of the mobile device 10 at the departure point (“Station A”) that is the starting point of the route along which the mobile device 10 moves. Read specific information.

  At this time, as described above, the mobile device 10 reads the movement destination specifying information from the recording medium such as a ticket, a coupon ticket, and a commuter pass.

Further, the mobile station 10 transmits the identifier (mobile station identifier) of the mobile station 10 as the acquired destination specifying information, the RNC 20 _a-1 corresponding to the RNC area a-1.

  In the present embodiment, description will be made assuming that the destination specifying information is departure point information and destination information. That is, the movement destination specifying information is information specifying “A station” and information specifying “C station”.

In step 12, the RNC 20a _-1 includes the RNC area a-1 in addition to the destination identification information and the mobile station identifier received from the mobile station 10, and the RNC 20a _-1 identifier ("a-1"). The data is transmitted to the VLR 30a corresponding to the VLR area a.

In step 13, the VLR 30 _a transmits the identifier (“a”) of the VLR 30 a to the HLR 40 in addition to the movement destination specifying information, the mobile device identifier, and the RNC identifier (“a-1”) received from the RNC 20 a-1.

  In step 14, the HLR 40 corresponds to the route through which the mobile device 10 moves from the departure point ("A station") to the destination ("C station") based on the destination identification information received from the VLR 30a. Get route information. Specifically, the HLR 40 refers to the route information DB 50, and provides route information (VLR identifier: “a” → “b” →→) corresponding to the departure place (“A station”) and the destination (“C station”). “C”). Further, the HLR 40 identifies the VLR 30b and the VLR 30c as the VLR corresponding to the VLR area including the destination of the mobile device 10 based on the acquired route information (VLR identifier: “a” → “b” → “c”). (See FIG. 7).

  Note that since the mobile device 10 is already in the VLR area a corresponding to the VLR 30a, the VLR 30a is not included in the VLR corresponding to the VLR area including the destination of the mobile device 10.

  In the following, a case where the HLR 40 specifies the VLR 30b corresponding to the VLR area b where the mobile device 10 moves next will be described.

  In step 15, the HLR 40 monitors the load status of the communication path between the HLR 40 and the VLR 30b. Further, the HLR 40 proceeds to the process of step 16 when the monitored load status is equal to or less than a predetermined threshold value.

  The HLR 40 transmits subscriber information corresponding to the mobile device 10 to the VLR 30b before the mobile device 10 moves to the VLR area b.

  In step 16, the HLR 40 transmits the identifier of the mobile device 10 and the subscriber information corresponding to the mobile device 10 to the VLR 30b.

  In step 17, the VLR 30 b causes the location information management unit 33 to manage the received identifier of the mobile device 10 and subscriber information corresponding to the mobile device 10.

  Next, the operation of the communication system when the mobile device 10 moves from the VLR area a to the VLR area b will be described with reference to the drawings.

  As shown in FIG. 9, in step 21, the mobile device 10 transmits a location information registration request to the VLR 30b.

  In step 22, the VLR 30 b causes the location information management unit 33 to manage the location information of the mobile device 10, and sends a location information update request to the HLR 40 for requesting to update the location information of the mobile device 10 managed by the HLR 40. Send.

  In step 23, the HLR 40 updates the location information of the managed mobile device 10, and transmits a location information deletion request for requesting to delete the location information of the mobile device 10 to the VLR 30a.

  In step 24, the VLR 30a transmits to the HLR 40 a position information deletion completion indicating that the position information of the managed mobile device 10 has been deleted.

  In step 25, the HLR 40 transmits a location information update completion indicating that the location information of the mobile device 10 has been updated to the VLR 30b.

  In step 26, the VLR 30 b transmits to the mobile device 10 location information registration completion indicating that the location information of the mobile device 10 has been registered.

  As shown in FIGS. 8 and 9, the HLR 40 transmits the subscriber information corresponding to the mobile device 10 to the VLR 30b before the mobile device 10 moves into the VLR area b. When moving in, subscriber information corresponding to the mobile device 10 does not need to be transmitted to the VLR 30b.

(Operation and effect of the communication system according to an embodiment of the present invention)
According to the communication system according to the embodiment of the present invention, the HLR 40 includes the destination of the mobile device 10 based on the destination specifying information read by the mobile device 10 at the starting point of the route along which the mobile device 10 moves. By specifying the VLR 30 corresponding to the VLR area, the communication system can improve the prediction accuracy of the area where the mobile device is located.

  Further, the HLR 40 transmits the subscriber information to the VLR 30 specified by the VLR specifying unit 45 before the mobile device 10 moves into the area corresponding to the specified VLR 30, so that the communication system can receive the subscriber information. To the VLR 30 can be made uniform in processing load.

  Furthermore, when the load status monitored by the load status monitoring unit 46 is equal to or less than a predetermined threshold, the HLR 40 transmits subscriber information to the VLR 30 specified by the VLR specifying unit 45, whereby the communication system The processing load generated when the subscriber information is transmitted to the VLR 30 can be further equalized.

(Modification 1)
Hereinafter, modified examples of the above-described embodiment will be described with reference to the drawings. In the following, differences between the above-described embodiment and the first modification will be mainly described.

  That is, in the embodiment described above, the mobile device 10 reads the departure place information and the destination information as the movement destination specifying information. However, in the first modification, the mobile device 10 uses the departure place information (“A station”). Only the information to be specified) is read as the movement destination specifying information.

  In the above-described embodiment, the route information DB 50 manages the departure point, the destination, and route information (VLR identifier) corresponding to the route on which the mobile device 10 moves from the departure point to the destination. However, in the first modification, the route information DB 50 manages the departure place and the route information corresponding to the route starting from the departure place in association with each other.

  Hereinafter, information managed by the route information DB 50 according to a modification of the present invention will be described with reference to the drawings. FIG. 10 is a diagram showing information managed by the route information DB 50 according to a modification of the present invention.

  As shown in FIG. 10, the route information DB 50 manages the departure point and route information (route name, RNC identifier, and VLR identifier) corresponding to the route starting from the departure point in association with each other.

  For example, the route information DB 50 includes a departure place (“A station”), a route name starting from “A station” (“ppp line”), and an RNC identifier corresponding to the route starting from “A station” ( “A-1” → “a-2” → “a-3” → “b-1”... “Cn”) and VLR identifiers corresponding to routes starting from “A station” (“ a ”→“ b ”→“ n ”) and manage them. Similarly, the route information DB 50 includes an origin (“J Inter”), a route name starting from “J Inter” (“sss high speed”), and an RNC identifier corresponding to the route starting from “J Inter”. (“J-1” → “j-2” → “j-3” → “k-1”... “Pn”), and a VLR identifier corresponding to a route starting from “J Inter” ( “J” → “k” → “p”) and manage them.

  Hereinafter, the operation of the communication system according to the modified example of the present invention will be described with reference to the drawings. FIG.11 and FIG.12 is a flowchart which shows operation | movement of the communication system which concerns on the example of a change of this invention.

As shown in FIG. 11, in step 31, the mobile device 10 moves to specify the destination of the mobile device 10 at the departure point (“Station A”) that is the starting point of the route on which the mobile device 10 moves. Read specific information. Further, the mobile station 10 transmits an identifier of the destination specifying information and the mobile station 10 acquired, the RNC 20 _a-1 corresponding to the RNC area a-1.

  In the present embodiment, description will be made assuming that the destination specifying information is only the departure place information. That is, the destination specifying information is only information specifying “A station”.

In step 32, the RNC 20 _a-1 receives the location information of the mobile device 10 (the identifier of the RNC 20 _a-1 (“a-1”)) in addition to the destination identification information received from the mobile device 10 and the identifier of the mobile device 10. ) To the VLR 30a corresponding to the VLR area a including the RNC area a-1.

In step 33, the VLR 30 _a transmits the identifier (“a”) of the VLR 30 a to the HLR 40 in addition to the destination identification information received from the RNC 20 _a-1 , the identifier of the mobile device 10 and the identifier of the RNC 20 _a-1 .

  In step 34, the HLR 40 acquires route information corresponding to a plurality of routes starting from the departure point, based on the destination specifying information received from the VLR 30a. Specifically, the HLR 40 refers to the route information DB 50 and corresponds to a plurality of routes (“ppp line”, “qqq line”, “rrr line”, etc.) starting from the departure place (“Station A”). Route information (hereinafter, route candidate information) is acquired (see FIG. 10).

In step 35, the mobile device 10 moves from the RNC area a-1 to the RNC area a-2, and assigns an identifier (mobile device identifier) of the mobile device 10 to the RNC _a-2 corresponding to the RNC area a-2. In step 36, the RNC _a-2 sends the location information of the mobile device 10 (the identifier of the RNC _a-2 ("a-2")) in addition to the mobile device identifier received from the mobile device 10 to the RNC area. Transmit to the VLR 30a corresponding to the VLR area a including a-2.

In step 37, the VLR 30 a transmits the identifier (“a”) of the VLR 30 a to the HLR 40 in addition to the destination identification information, the mobile device identifier, and the RNC identifier (“a-2”) received from the RNC _a-2 .

  In step 38, the HLR 40 narrows down the route candidate information acquired in step 34 based on the received RNC identifier (“a-2”). Specifically, the HLR 40 identifies that the mobile station 10 has moved from the RNC area a-1 to the RNC area a-2 based on the received RNC identifier (“a-2”), and is acquired in step 34. Narrow route candidate information.

  That is, the HLR 40 specifies a route in which the RNC identifier is “a-2” next to “a-2” from among a plurality of routes starting from “A station”, and the route on which the mobile device 10 moves. (Route name: “ppp line”, VLR identifier: “a” → “b” → “c”, etc.) are identified (see FIG. 10).

  Note that the communication system may repeat the processing in steps 35 to 38 until the above-described route candidate information becomes one, and may move to the processing in step 39 when the route information reaches a predetermined number. .

  In step 39, the HLR 40 sets the VLR 30 b and VLR 30 c corresponding to the narrowed route information (VLR identifier: “a” → “b” → “c”) as the VLR corresponding to the VLR area including the destination of the mobile device 10. Specify (see FIG. 10).

  Note that since the mobile device 10 is already in the VLR area a corresponding to the VLR 30a, the VLR 30a is not included in the VLR corresponding to the VLR area including the destination of the mobile device 10.

  In the following, a case where the VLR 30b corresponding to the VLR area b to which the mobile device 10 moves next is specified as an example of the VLR corresponding to the VLR area including the destination of the mobile device 10 will be described.

  In step 40, the HLR 40 monitors the load status of the communication path between the HLR 40 and the VLR 30b. Further, the HLR 40 proceeds to the process of step 41 when the monitored load status is equal to or less than a predetermined threshold value.

  The HLR 40 transmits subscriber information corresponding to the mobile device 10 to the VLR 30b before the mobile device 10 moves to the VLR area b.

  In step 41, the HLR 40 transmits the identifier of the mobile device 10 and the subscriber information corresponding to the mobile device 10 to the VLR 30b.

  In step 42, the VLR 30 b causes the location information management unit 33 to manage the received identifier of the mobile device 10 and subscriber information corresponding to the mobile device 10.

  In the first modification, the HLR 40 narrows down a plurality of routes on which the mobile device 10 moves from the starting point based on the RNC identifier, but is not limited to this, and the starting point is the starting point. A plurality of routes along which the mobile device 10 moves may be narrowed down based on the base station identifier.

It is a figure which shows the communication system which concerns on one Embodiment of this invention. 1 is a block diagram showing a mobile device 10 according to an embodiment of the present invention. It is a block diagram showing VLR30 concerning one embodiment of the present invention. It is a block diagram showing HLR40 concerning one embodiment of the present invention. It is a figure which shows the information managed by VLR30 which concerns on one Embodiment of this invention. It is a figure which shows the information managed by HLR40 which concerns on one Embodiment of this invention. It is a figure which shows the information managed by path | route information DB50 which concerns on one Embodiment of this invention. It is a figure which shows operation | movement of the communication system which concerns on one Embodiment of this invention (the 1). It is a figure which shows operation | movement of the communication system which concerns on one Embodiment of this invention (the 2). It is a figure which shows the information managed by route information DB50 concerning the example of a change of this invention. It is a figure which shows operation | movement of the communication system which concerns on the example of a change of this invention (the 1). It is a figure which shows operation | movement of the communication system which concerns on the example of a change of this invention (the 2).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Mobile device, 11 ... Reception part, 12 ... Transmission part, 13 ... Reading part, 14 ... Control part, 20 ... RNC, 30 ... VLR, 31 ...・ Receiving unit, 32... Transmitting unit, 33 .. location information management unit, 34... Control unit, 40... HLR, 41. Location information management unit 44 ... Subscriber information management unit 45 ... VLR specifying unit 46 ... Load status monitoring unit 47 ... Control unit 50 ... Route information DB

Claims (5)

A subscriber information management device for managing subscriber information including identification information for identifying a subscriber of a mobile device; and a subscriber information storage device for storing the subscriber information corresponding to the mobile device existing in an area. A communication system comprising:
The mobile device is
A reading unit that reads destination identification information for identifying a destination of the mobile device at a starting point of a route along which the mobile device moves;
A transmission unit that transmits the destination identification information read by the reading unit to the subscriber information management device;
The subscriber information management device includes:
A subscriber information storage device specifying unit for specifying the subscriber information storage device corresponding to the area including the destination of the mobile device based on the destination specification information received from the mobile device;
The subscriber information is transmitted to the subscriber information storage device specified by the subscriber information storage device specifying unit before the mobile device moves into an area corresponding to the specified subscriber information storage device. And a transmission unit. The subscriber information storage device specifying unit has a route information acquiring unit that acquires route information corresponding to a route on which the mobile device moves based on the destination specifying information;
The communication system according to claim 1, wherein the subscriber information storage device corresponding to an area including a destination of the mobile device is specified based on the route information acquired by the route information acquisition unit. . A plurality of radio stations each managing the mobile devices present in a plurality of radio station areas included in an area corresponding to the subscriber information storage device;
When the mobile station has moved into the wireless station area corresponding to the wireless station, the subscriber station information management device indicates position information indicating that the mobile station has moved into the wireless station area. To
The communication system according to claim 2, wherein the route information acquisition unit acquires the route information based on position information received from the wireless station. The subscriber information management device includes a monitoring unit that monitors a load state of a communication path between the subscriber information storage device specified by the subscriber information storage device specifying unit and the subscriber information management device. ,
The transmitter of the subscriber information management device is configured to store the subscriber information stored by the subscriber information storage device specifying unit when the load status monitored by the monitoring unit is equal to or less than a predetermined threshold. The communication system according to any one of claims 1 to 3, wherein the subscriber information is transmitted to a device. A subscriber information management device for managing subscriber information including identification information for identifying a subscriber of a mobile device; and a subscriber information storage device for storing the subscriber information corresponding to the mobile device existing in an area. In the communication system provided, a subscriber information transmission method for transmitting the subscriber information from the subscriber information management device to the subscriber information storage device,
The mobile device reads destination specification information for specifying a destination of the mobile device at a starting point of a route along which the mobile device moves; and
Identifying the subscriber information storage device corresponding to the area including the destination of the mobile device based on the destination identification information read by the mobile device;
Transmitting the subscriber information to the identified subscriber information storage device before the mobile device moves into an area corresponding to the identified subscriber information storage device. Subscriber information transmission method.

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