JP2018129591A - Communication control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a communication on the basis of an incorrect position registered requirement from a mobile.SOLUTION: An HSS/HLR10 as a communication control device, includes: a position registration information storage part 13 that stores information for specifying a mobile, and information for specifying an exchanger which manages an area whose location is registered in association; a communication part 11 that is a position registration requirement reception part that receives a position registration requirement signal according to the mobile from the exchanger; a position registration processing part 12 that is the position registration processing part executing a position registration processing on the basis of an authentication instruction for instructing an authentication according to the mobile for the exchanger and the position registration requirement signal; and an intra-range location determining part 14 and an intra-range elimination processing part 15 that is the position registration information elimination part which eliminates the information according to a position registration according to the mobil when the communication part 11 receives a signal indicating that the authentication according to the mobile from the exchanger is fault, and in the case where information for identifying the exchanger that transmitted the position registration request signal in accordance with the mobile corresponded to the signal indicating that the authentication is fault has stored.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a communication control apparatus.

  When a user uses a mobile communication terminal, the mobile communication terminal transmits a location registration request to the network side, and the network side performs location registration processing after performing authentication processing related to the mobile communication terminal. On the other hand, since an unauthorized location registration request may be transmitted from a communication terminal different from a regular mobile communication terminal, various methods for detecting an unauthorized location registration request have been studied on the network side. (For example, Patent Document 1).

JP 2010-263426 A

  However, in recent years, there are cases where an unauthorized location registration request is transmitted using a method that cannot be detected by the methods that have been studied so far, and a further method for detecting an unauthorized location registration request is required.

  The present invention has been made in view of the above, and an object of the present invention is to provide a communication control apparatus capable of preventing communication based on an unauthorized location registration request from a mobile device.

  In order to achieve the above object, a communication control device according to an aspect of the present invention provides, for each mobile device, information for identifying a mobile device and information for identifying an exchange that has jurisdiction over the area where the mobile device is registered. A location registration information storage unit that stores information in association with the mobile station, information that identifies the mobile device is included, a location registration request reception unit that receives a location registration request signal related to the mobile device from the exchange, and the location registration request signal is transmitted An authentication instruction unit for instructing authentication related to the mobile device and a location registration process based on the location registration request signal are performed on the exchange, and information stored in the location registration information storage unit is updated. In response to an instruction from the location registration processing unit, the authentication instruction unit, an authentication result receiving unit that receives a signal indicating that the authentication related to the mobile device has failed from the exchange, and the location registration information storage unit , The location registration request is used as information for specifying an exchange having jurisdiction over an area registered for location that is associated with information for specifying the mobile device corresponding to the signal indicating that the authentication result receiving unit has received authentication failure. A location registration information erasure unit that erases information related to location registration related to the mobile device when information specifying the exchange that has transmitted the signal is stored.

  According to the communication control device, when a signal indicating that authentication related to the mobile device has failed is received, the mobile control device is located in an area corresponding to the exchange that has transmitted the signal indicating that the mobile device has failed authentication. It is determined whether or not to do so, and when the mobile device is in the area, the location registration information related to the mobile device is deleted. Since the communication control apparatus has the above-described configuration, it indicates that the authentication related to the mobile device has failed even if the location registration processing of the mobile device has been advanced based on an unauthorized location registration request. Since it is possible to delete information related to location registration triggered by the reception of the signal, it is possible to prevent the communication connection of the mobile device from being continued by unauthorized location registration processing.

  In addition, the communication control apparatus according to an aspect of the present invention stores information for identifying a mobile device and information for identifying an exchange having jurisdiction over the area where the mobile device is registered in association with each mobile device. A location registration information storage unit, information for identifying a mobile device is included, a location registration request reception unit for receiving a location registration request signal related to the mobile device from an exchange, and location registration processing based on the location registration request signal Corresponding to information specifying the mobile device included in the location registration request signal by referring to the location registration information storage unit and the location registration processing unit that updates the information stored in the location registration information storage unit When information specifying a switch different from the switch that has transmitted the position registration request signal is stored as information specifying a switch having jurisdiction over the registered location, From the paging processing unit that instructs paging to the mobile device to the switch specified based on the information stored in the registration information storage unit, and from the switch that instructs paging to the mobile device, the paging When the mobile station receives a signal indicating that there is a response from the mobile device, the location registration processing stop unit stops the location registration processing for the mobile device based on the location registration request signal in the location registration processing unit. And including.

  According to the above communication control device, when a location registration request signal is received from an exchange different from the exchange stored in association with the mobile device in the location registration information storage unit, it is stored in the location registration information storage unit. The paging of the mobile station is instructed to the exchange. When there is a response from the mobile device to paging, the location registration process is stopped. With the communication control device having such a configuration, for example, when an unauthorized location registration request signal related to a mobile device is transmitted, if it is a situation where paging to the mobile device is possible, unauthorized location registration is performed. Processing based on the request can be rejected. Therefore, it is possible to prevent location registration from being performed based on an unauthorized location registration request and establishing a communication connection.

  ADVANTAGE OF THE INVENTION According to this invention, the communication control apparatus which can prevent the communication based on the unauthorized location registration request | requirement from a mobile device is provided.

It is a system configuration | structure figure of the communication system containing HSS / HLR which is a communication control apparatus which concerns on this embodiment. It is a functional block diagram for performing the 1st method about HSS / HLR. It is a figure which shows the example of the information memorize | stored in the location registration information storage part of HSS / HLR. It is a sequence diagram explaining the flow of the process which concerns on the 1st method by a communication system. It is a flowchart which concerns on the determination of in-zone deletion by HSS / HLR. It is a functional block diagram for performing the 2nd method about HSS / HLR. It is a figure which shows the example of the information hold | maintained in the paging process part of HSS / HLR. It is a sequence diagram explaining the flow of the process which concerns on the 2nd method by a communication system. It is a flowchart which concerns on determination of the continuation of the location registration process by HSS / HLR. It is a figure which shows an example of the hardware configuration of HSS / HLR which concerns on this embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a diagram showing a system configuration of a communication system including a communication control apparatus according to an embodiment of the present invention. A communication system 1 shown in FIG. 1 is a system for communication by a mobile device 40 which is a mobile communication terminal. In the present embodiment, when the mobile device 40 is a mobile device capable of communication connection to the home network (NW) in the first area A1, the mobile device 50 is a mobile communication terminal (illegal terminal) that performs unauthorized processing. Shows a state in which the mobile device 40 is disguised and a communication connection is made using the home NW in the second area A2. In the communication system 1 according to the present embodiment, a case will be described in which the HSS / HLR 10 that is a communication control device provided in the home NW prevents communication connection using the home NW by the mobile device 50 that is an unauthorized terminal.

  As shown in FIG. 1, the communication system 1 includes an HSS / HLR (Home Subscriber Server / Home Location Server) 10, a first switch 20, a second switch 30, and mobile devices 40 and 50.

  The HSS / HLR 10 is a subscriber information management server (subscriber information management database) that manages contract information, authentication information, and location information of mobile devices in the home NW. Further, in the present embodiment, the HSS / HLR 10 has a function of determining whether or not the mobile device that has transmitted the location registration request is an unauthorized terminal and performing processing related to the location registration request based on the result. . That is, the HSS / HLR 10 functions as a communication control device in the present embodiment. Details of processing performed by the HSS / HLR 10 will be described later.

  The first exchange 20 and the second exchange 30 are devices that function as exchanges when the mobile station performs communication. In the present embodiment, the first exchange 20 is an exchange when a mobile station located in the first area performs communication. The second exchange 30 is an exchange when a mobile station located in the second area performs communication. The first exchange 20 and the second exchange 30 transmit a location registration request when the mobile station performs communication to the HSS / HLR 10, and information necessary for authentication processing and location registration processing related to the mobile station. It has a function to send and receive.

  The first area and the second area may be an area formed by the home NW, or may be an area formed by another communication network. For example, the first area may be an area formed by the home NW, and the second area may be an area formed by another communication network. In this case, a mobile device located in the second area in another communication network is a mobile device that has roamed out to another communication network by roaming. That is, a mobile station at a position corresponding to the second area requests a location registration request to the HSS / HLR 10 of the home NW via the second switch 30 provided in the second area formed in another communication network. Will be sent.

  The mobile devices 40 and 50 are terminal devices that have communication functions such as smartphones and tablet terminals and are used by users. In the present embodiment, it is assumed that the mobile device 40 is a regular terminal and the mobile device 50 is an unauthorized terminal. An unauthorized terminal is a communication terminal that attempts to establish a communication connection with the home NW while posing as another terminal. In the following embodiment, a case will be described in which the mobile device 50 tries to establish a communication connection to the home NW while wearing the mobile device 40 that is a regular terminal.

  Here, how to detect an unauthorized terminal in the communication system 1 and prevent communication connection by the unauthorized terminal will be described with reference to FIG. When the mobile device 40 that is a regular terminal is located in the first area, the mobile device 50 that is an unauthorized terminal tries to establish a communication connection from the second area to the home NW while posing as the mobile device 40. To do. When the mobile device 40 as a regular terminal establishes communication connection with the home NW, a location registration request is transmitted to the HSS / HLR 10 via the first exchange 20. When performing location registration of the mobile device 40 in the home NW, first, an authentication process for confirming whether or not the mobile device 40 is an authorized terminal is performed. Since the mobile device 40 which is a regular terminal holds information necessary for authentication, the mobile device 40 transmits and receives the information. The authentication result is transmitted to the HSS / HLR 10 from the exchange that communicates with the mobile device. In the home NW side HSS / HLR 10, when the authentication related to the mobile device 40 is successful, it is determined that the location registration processing related to the terminal may be performed, and the location registration processing related to the mobile device 40 is performed. As a result, the location of the mobile device 40 is registered in the HSS / HLR 10 via the first exchange 20 and communication using the home NW is possible.

  On the other hand, when the mobile device 50 that is an unauthorized terminal makes a communication connection to the home NW while posing as the mobile device 40, it makes a location registration request to the HSS / HLR 10 via the second switch 30. Next, an authentication process for confirming whether or not the mobile device 50 is a legitimate terminal is performed. Here, when the mobile device 50 is an unauthorized terminal, the mobile device 50 does not hold information necessary for authentication as the mobile device 40 and authentication fails. The authentication result is transmitted to the HSS / HLR 10 from the exchange that communicates with the mobile device. In the HSS / HLR 10 on the home NW side, when the authentication related to the mobile device 50 fails, the terminal determines that the terminal is an unauthorized terminal, rejects location registration, and stops the processing. As a result, the mobile device 50 is in a state where communication using the home NW disguised as the mobile device 40 is not possible.

  Thus, conventionally, on the home NW side, when an unauthorized terminal pretends to be a legitimate terminal and makes a location registration request, it is determined whether the mobile device is a legitimate terminal based on the success or failure of authentication. have.

  However, it is conceivable that the unauthorized terminal cannot be sufficiently excluded by the conventional location registration determination based on the authentication result. For example, the result of the authentication processing related to the mobile device is transmitted from the exchange to the HSS / HLR. If the exchange does not notify the HSS / HLR, the HSS / HLR indicates that the authentication of the mobile device has failed. I can't figure it out. That is, it cannot be determined whether or not the terminal performing authentication is an unauthorized terminal. In the conventional system configuration, unless an authentication failure is notified as a result of authentication related to the mobile device, the HSS / HLR does not determine that the target mobile device is an unauthorized terminal. Accordingly, when the authentication failure is not notified from the exchange, there is a possibility that the subsequent location registration process is continued in the HSS / HLR. Also, depending on the exchange, there is a possibility that the location registration process may be performed without the HSS / HLR knowing that the authentication has failed because the timing of notifying the HSS / HLR of the authentication result is delayed. It is done.

  In addition, there is a possibility that a notification that the authentication is successful is performed uniformly from the exchange regardless of the result of the authentication processing for the mobile device. In this case, the HSS / HLR may continue the location registration process based on the notification that the authentication has been successful. Based on the original function as an exchange, the exchange is required to appropriately notify the result of authentication relating to the mobile station. However, in the case of an exchange that cannot be sufficiently managed on the home NW side, for example, communication via an exchange provided by a communication network at a roaming-out destination, an exchange having a specification different from the specification assumed on the home NW side is used. It is possible that

  Therefore, in the communication system 1 according to the present embodiment, the HSS / HLR 10 on the home NW side prevents communication based on an unauthorized location registration request from the mobile device even when the authentication result cannot be properly received. The structure which can do is realized. In the following embodiments, two methods will be described as configurations for preventing communication based on an unauthorized location registration request from a mobile device. In the first method, when the location registration process is performed without the HSS / HLR 10 not knowing that the authentication has failed, the location registration information is deleted when a notification indicating that the authentication has failed is received. It is characterized by that. In addition, even if the authentication is successful, the second method is that when the location registration request from the mobile device is transmitted from an area different from the previous location registration, Paging is performed on the area. Each will be described below.

(First method)
In the first method, when the location registration process is performed without the HSS / HLR 10 not knowing that the authentication has failed, the location registration information is deleted when a notification indicating that the authentication has failed is received. . That is, the HSS / HLR 10 deletes the location registration information when receiving a notification indicating that the authentication related to the mobile device has failed even if the location registration processing related to the mobile device is completed. Refusing to locate the mobile device.

  For this reason, the HSS / HLR 10 that executes the first method has functions as shown in the functional block diagram of FIG. That is, the HSS / HLR 10 includes a communication unit 11 (a location registration request receiving unit, an authentication result receiving unit), a location registration processing unit 12 (an authentication instruction unit, a location registration processing unit), a location registration information storage unit 13, and a location determination unit. 14 (location registration information erasure unit) and in-zone erasure processing unit 15 (location registration information erasure unit).

  The communication unit 11 has a function of receiving a location registration request signal related to a mobile station transmitted from an exchange such as the first exchange 20 or the second exchange 30. The communication unit 11 has a function of transmitting and receiving signals necessary for location registration. The signal received by the communication unit 11 includes a signal indicating the result of authentication related to the mobile station transmitted from the exchange.

  The location registration processing unit 12 performs processing related to location registration of the mobile device based on the location registration request of the mobile device transmitted from the exchange received by the communication unit 11. The position registration process itself is an existing process, and the position registration processing unit 12 performs position registration related to the mobile device by performing the existing process. The location registration processing unit 12 also has a function of instructing the exchange to perform authentication of the mobile device as processing related to location registration of the mobile device.

  The location registration information storage unit 13 has a function of storing information related to location registration of the mobile device performed in the location registration processing unit 12. FIG. 3 shows a part of the information stored in the location registration information storage unit 13. As shown in FIG. 3, in the location registration information storage unit 13, information for specifying a mobile device (for example, IMSI: International Mobile Subscriber Identity, telephone number, etc.) and an area where the mobile device is located (registered) Is stored in association with information indicating the information (in FIG. 3, information specifying the exchange through which the location registration is performed). In the location registration information storage unit 13, not only the above information but also contract information or the like may be stored in association with information specifying the mobile device, but the description is omitted in this embodiment.

  The location determination unit 14 determines whether the location of the mobile device has already been registered when the communication unit 11 receives an authentication failure signal related to the mobile device from the exchange. Have The location determination unit 14 determines whether or not the location registration related to the target mobile device that has received the signal indicating the failure of the authentication has been completed based on the information stored in the location registration information storage unit 13. When the location determining unit 14 determines that the location registration related to the mobile device has not been made (there is no location), the processing related to the location registration related to the mobile device is stopped as usual. . On the other hand, when the location determining unit 14 determines that the location registration related to the mobile device has been completed (has already been in the service area), the location deletion processing unit 15 performs processing related to the mobile device.

  The located area erasure processing unit 15 performs area erasure on the mobile device that has been determined by the located area determining unit 14 that the location registration related to the mobile device has been completed (ie, has been located). It has a function to delete registration information. Specifically, the information stored in the location registration information storage unit 13 is updated, and the mobile device is notified that the location registration information has been deleted. Since the location registration information is deleted, the mobile device that has received this notification cannot communicate via the home NW unless location registration is performed again.

  A series of processing by the communication system 1 including the HSS / HLR 10 will be described with reference to FIGS. FIG. 4 is a sequence diagram for explaining the flow of processing by the communication system 1. FIG. 5 is a flowchart relating to determination of erasure by the HSS / HLR 10.

  First, it is assumed that the mobile device 40 that is a regular terminal and the mobile device 50 that is an unauthorized terminal are staying in the area shown in FIG. Then, a case will be described in which the mobile device 50 tries to perform location registration while wearing the mobile device 40 after the mobile device 40 has registered the location with the HSS / HLR 10.

  First, the mobile terminal 40, which is a legitimate terminal, transmits a signal (Location Update) requesting location registration to the first exchange 20 (S01). The signal for requesting location registration includes information for identifying the own device (mobile device 40). The first exchange 20 transmits a location registration request signal (MAP_SAI) of the mobile device 40 to the HSS / HLR 10 based on the request from the mobile device 40 (S02). The location registration request signal includes information for specifying the mobile device 40 and information for specifying the first exchange 20. When the communication unit 11 receives the signal from the first exchange 20, the HSS / HLR 10 starts processing related to authentication of the mobile device 40 as processing related to location registration in the location registration processing unit 12 (S03). Then, an instruction signal (MAP_SAI.ack) for authenticating the mobile device 40 is transmitted from the communication unit 11 of the HSS / HLR 10 to the first exchange 20 (S04). Based on the instruction from the HSS / HLR 10, the first exchange 20 communicates with the mobile device 40 to perform authentication (S05). As a result of this communication, if the authentication related to the mobile device 40 is successful in the first exchange 20 (S06), a signal (MAP_UL) indicating the result is transmitted from the first exchange 20 to the HSS / HLR 10 (S07). This signal is a signal for requesting continuation of the location registration process. Accordingly, in the HSS / HLR 10, after the location registration processing related to the mobile device 40 is performed in the location registration processing unit 12, the first switch 20 is notified (MAP_UL.ack) that the location registration processing has been completed (S08). ). The first exchange 20 notifies the mobile device 40 that the location registration process has been completed (Location Update.ack) (S09). Through the above processing, information indicating that the mobile device 40 is located in the first area under the jurisdiction of the first exchange 20 is registered in the location registration information storage unit 13 of the HSS / HLR 10.

  Next, it is assumed that the mobile device 50, which is an unauthorized terminal, makes a location registration request from the second area as a mobile device 40. The mobile device 50 is disguised as a mobile device 40 that is a regular terminal, and the mobile device 40 transmits a signal (Location Update) for requesting location registration to the second switch 30. Since the mobile device 50 is disguised as the mobile device 40, the mobile device 50 transmits a signal including information specifying the mobile device 40 to the second exchange 30 instead of information specifying the own device (mobile device 50) ( S11). Based on the request transmitted from the mobile device 50, the second exchange 30 transmits a location registration request signal (MAP_SAI) related to the mobile device 40 to the HSS / HLR 10 (S12). This location registration request signal includes information for specifying the mobile device 40 and information for specifying the second exchange 30. When the communication unit 11 of the HSS / HLR 10 receives the signal from the second exchange 30, the location registration processing unit 12 starts processing related to authentication of the mobile device 40 as processing related to location registration in the location registration processing unit 12. (S13). Then, an instruction signal (MAP_SAI.ack) for performing authentication is transmitted from the communication unit 11 of the HSS / HLR 10 to the second exchange 30 (S14). Based on the instruction from the HSS / HLR 10, the second exchange 30 performs authentication with the mobile device 50 by performing communication (S15). However, since the mobile device 50 disguises the mobile device 40 and transmits a location registration request, communication related to authentication of the mobile device 40 is performed here. Accordingly, in communication with the mobile device 50, the authentication related to the mobile device 40 naturally fails (S16).

  However, it is assumed that the second exchange 30 transmits a signal (MAP_UL) requesting continuation of the location registration process before notifying the HSS / HLR 10 that the authentication has failed (S17). In this case, the HSS / HLR 10 determines that there is no problem in the authentication of the mobile device 40 (the mobile device 50 wearing the mobile device 40), and the location registration processing unit 12 performs the location registration process related to the mobile device 40. After that, the second switch 30 is notified (MAP_UL.ack) that the location registration process is completed (S18). The second exchange 30 notifies the mobile device 50 wearing the mobile device 40 that the location registration process has been completed (Location Update.ack) (S19). Through the above processing, information indicating that the mobile device 40 is located in the second area under the jurisdiction of the second exchange 30 is registered in the location registration information storage unit 13 of the HSS / HLR 10, and the mobile device 40 is disguised. The mobile device 50 can communicate via the home NW.

  On the other hand, after the location registration process relating to the mobile device 40 (the mobile device 50 wearing the mobile device 40) is performed, the second exchange 30 authenticates the mobile device 40 (the mobile device 50 wearing the mobile device) to the HSS / HLR 10. It is assumed that information (MAP_AFR) indicating failure has been notified (S20). In the conventional HSS / HLR, even when a notification of an authentication failure regarding a mobile device for which location registration processing has been completed is received, no special processing is performed. On the other hand, in the HSS / HLR 10 according to the present embodiment, it is determined whether or not to delete the location registration information related to the location-registered mobile device 40 (the mobile device 50 disguised) (S21).

  The in-zone deletion determination (S21) in the HSS / HLR 10 is specifically performed according to the flowchart shown in FIG. First, when a signal indicating that the authentication has failed is transmitted from the exchange (second exchange 30 in this embodiment) and received by the communication unit 11 of the HSS / HLR 10 (S31), the in-zone determination unit of the HSS / HLR 10 14, it is determined whether the target mobile device 40 that has failed authentication is already in the area of the exchange that has transmitted the signal that failed authentication (S <b> 32). In the present embodiment, since the location registration related to the mobile device 40 is performed based on the signal from the second exchange 30, information indicating that the mobile device 40 is located in the second area of the second exchange 30. Is determined based on whether or not is stored in the location registration information storage unit 13. As a result, when the mobile device 40 is already in the second area (S32-YES), it is confirmed that the mobile device 40 is in the service area despite the authentication failure. Show. Therefore, based on the determination result of the area determination unit 14, the area deletion processing unit 15 deletes the area information related to the mobile device 40, that is, the information stored in the location registration information storage unit 13. Perform (S33). As a result, since the information indicating that the mobile device 40 is located in the second area under the jurisdiction of the second exchange 30 is deleted from the location registration information storage unit 13 of the HSS / HLR 10, the mobile device 40 is disguised. The mobile device 50 is prevented from performing communication via the home NW.

  If the mobile device 40 is not in the second area as a result of the determination by the location determination unit 14 (S32-NO), the mobile device 40 moves by performing processing based on the authentication result as usual. It can be prevented that the device 50 disguises the mobile device 40 and performs communication via the home NW. Therefore, the HSS / HLR 10 performs the existing process (S34).

  In the case of the example shown in FIG. 4, this corresponds to the case where the mobile device 40 has already been in the second area (S32—YES). Accordingly, the information stored in the location registration information storage unit 13 is deleted. Then, a signal (MAP_CL) indicating that the location information has been deleted is transmitted to the second exchange 30 (S22). Based on this signal, the second exchange 30 is prevented from continuing communication connection by the mobile device 50 disguised as the mobile device 40.

  As a result of the above series of processing, the location registration information of the mobile device 40 is deleted from the location registration information storage unit 13 of the HSS / HLR 10. Therefore, the information indicating that the mobile terminal 40, which is a legitimate terminal, is located in the first area corresponding to the first exchange 20 is also deleted. Therefore, although the mobile device 40 is also in a state where the location registration information is not registered in the HSS / HLR 10, the mobile device 40 is in some subsequent timing (for example, timing when communication connection is required on the mobile device 40 side). The communication connection can be resumed by re-registering the location through regular processing.

  As described above, when the HSS / HLR 10 receives a signal indicating that authentication related to the mobile device has failed, the HSS / HLR 10 transmits to the exchange that has transmitted a signal indicating that the mobile device has failed authentication in the area determination unit 14. It is determined whether or not the mobile station is in the corresponding area, and when the mobile device is in the area, the location deletion processing unit 15 deletes the location registration information related to the mobile device. Yes. With the HSS / HLR 10 having such a configuration, even when an unauthorized terminal has been registered in location, the location information is erased by receiving a signal indicating that the authentication related to the mobile device has failed. Therefore, it is possible to prevent the unauthorized terminal from continuing the communication connection.

  In the above description, the mobile device 50 that is an unauthorized terminal transmits a location registration request via the second switch 30 that is different from the first switch 20 to which the mobile device 40 that is a regular terminal is connected. The present invention can be applied even when the mobile terminal 40, which is a regular terminal, and the mobile terminal 50, which is an unauthorized terminal, are located under the same exchange. That is, when the mobile device 50 disguises the mobile device 40 and transmits a location registration request, the authentication related to the mobile device 50 fails, so that a signal indicating the failure is transmitted from the exchange to the HSS / HLR 10. Therefore, the HSS / HLR 10 deletes the information related to the location registration related to the mobile device 40 when the authentication related to the mobile device 50 disguised as the mobile device 40 fails, so that the mobile device 50 continues communication. Is impossible. However, since the communication connection of the mobile terminal 40 which is a regular terminal becomes impossible, the mobile terminal 40 needs to make a location registration request again.

(Second method)
In the second method, even if the authentication is successful, if the location registration request from the mobile device is transmitted from an area different from the previous location registration, the area at the previous location registration is displayed. Then, paging is performed, and it is determined whether or not to continue the position registration process based on the paging result. That is, the HSS / HLR 10 determines that the new location registration request received by the HSS / HLR 10 is an illegal request if the mobile device (regular terminal) is still in the area at the time of the previous location registration. Judgment is made and the location registration process is stopped.

  For this reason, the HSS / HLR 10 that executes the second method has functions as shown in the functional block diagram of FIG. That is, the HSS / HLR 10 includes a communication unit 11 (location registration request receiving unit), a location registration processing unit 12, a location registration information storage unit 13, a located area determination unit 14 (location registration processing cancellation unit), and a paging processing unit 16. It is comprised including. Among these, the communication unit 11, the location registration processing unit 12, and the location registration information storage unit 13 are functional blocks that perform the same processing as the HSS / HLR 10 that can perform the first method illustrated in FIG. Therefore, explanation is omitted.

  The in-zone determining unit 14 is a functional unit included in the HSS / HLR 10 that can perform the first method, but the process for determining the in-zone of the mobile device is different. In the second method, the location determination unit 14 has a function of confirming whether the mobile device that has transmitted the location registration request is in the area at the time of the previous location registration. If it is determined that the mobile device that has transmitted the location registration request is also in the area at the time of the previous location registration, it may be determined that the mobile device that newly transmitted the location registration request is an unauthorized terminal. it can. When the location determination unit 14 determines that the new location registration request is an unauthorized location registration request from an unauthorized terminal, the location determination unit 14 performs processing based on the location registration request by the location registration processing unit 12. To cancel. Therefore, the location registration processing by the location registration processing unit 12 is interrupted, and location registration is not performed.

  Based on the instruction from the location determination unit 14, the paging processing unit 16 performs paging on the area where the mobile device that transmitted the location registration request has been in the previous location registration. It has a function to check if it is in the area. When the mobile device is located in the area, the mobile device responds to paging from the paging processing unit 16 of the HSS / HLR 10. On the other hand, when the mobile device is not already in the area, the mobile device does not respond to paging from the paging processing unit 16 of the HSS / HLR 10. The paging processing unit 16 has a function of confirming whether there is a response from the mobile device during a predetermined time, and notifying the area determination unit 14 of the result. In order to perform the control as described above, the paging processing unit 16 may individually hold a table (information) for managing mobile devices during paging as shown in FIG.

  Next, a series of processes using the second method will be described with reference to FIGS. FIG. 8 is a sequence diagram illustrating the flow of processing by the communication system 1. FIG. 9 is a flowchart relating to determination of continuation of the location registration process by the HSS / HLR 10.

  The premise is the same as in the first method. That is, it is assumed that the mobile device 40 as a regular terminal and the mobile device 50 as an unauthorized terminal stay in the area shown in FIG. Then, a case will be described in which the mobile device 50 tries to perform location registration while wearing the mobile device 40 after the mobile device 40 has registered the location with the HSS / HLR 10.

  The location registration process by the mobile device 40, which is a regular terminal, is the same as the first method, and therefore will be described briefly. The mobile device 40, which is a legitimate terminal, transmits a signal (Location Update) for requesting location registration to the first exchange 20 (S01). The first exchange 20 transmits a location registration request signal (MAP_SAI) of the mobile device 40 to the HSS / HLR 10 based on the request from the mobile device 40 (S02). When the communication unit 11 receives the signal from the first exchange 20, the HSS / HLR 10 starts processing related to authentication of the mobile device 40 (S03). An instruction signal (MAP_SAI.ack) for performing authentication is transmitted from the communication unit 11 of the HSS / HLR 10 to the first exchange 20 (S04). Based on the instruction from the HSS / HLR 10, the first exchange 20 communicates with the mobile device 40 to perform authentication (S05). As a result of this communication, if the authentication related to the mobile device 40 is successful in the first exchange 20 (S06), a signal (MAP_UL) indicating the result is transmitted from the first exchange 20 to the HSS / HLR 10 (S07). In the HSS / HLR 10, after the location registration processing related to the mobile device 40 is performed in the location registration processing unit 12, the first switch 20 is notified (MAP_UL.ack) that the location registration processing has been completed (S08). The first exchange 20 notifies the mobile device 40 that the location registration process has been completed (Location Update.ack) (S09). Through the above processing, information indicating that the mobile device 40 is located in the first area under the jurisdiction of the first exchange 20 is registered in the location registration information storage unit 13 of the HSS / HLR 10.

  Next, it is assumed that the mobile device 50, which is an unauthorized terminal, makes a location registration request from the second area as a mobile device 40. The mobile device 50 is disguised as a mobile device 40 that is a regular terminal, and the mobile device 40 transmits a signal (Location Update) for requesting location registration to the second switch 30. Since the mobile device 50 is disguised as the mobile device 40, the mobile device 50 transmits a signal including information specifying the mobile device 40 to the second exchange 30 instead of information specifying the own device (mobile device 50) ( S41). Based on the request transmitted from the mobile device 50, the second exchange 30 transmits a location registration request signal (MAP_SAI) related to the mobile device 40 to the HSS / HLR 10 (S42). This location registration request signal includes information for specifying the mobile device 40 and information for specifying the second exchange 30. When the communication unit 11 of the HSS / HLR 10 receives the signal from the second exchange 30, the location registration processing unit 12 starts processing related to authentication of the mobile device 40 as processing related to location registration in the location registration processing unit 12. (S43). Then, an instruction signal (MAP_SAI.ack) for performing authentication is transmitted from the communication unit 11 of the HSS / HLR 10 to the second exchange 30 (S44). Based on the instruction from the HSS / HLR 10, the second exchange 30 performs authentication with the mobile device 50 by performing communication (S45). However, since the mobile device 50 disguises the mobile device 40 and transmits a location registration request, communication related to authentication of the mobile device 40 is performed here. Accordingly, in communication with the mobile device 50, the authentication related to the mobile device 40 naturally fails (S46).

  However, it is assumed that the second exchange 30 transmits a signal (MAP_UL) requesting continuation of the location registration process without notifying the HSS / HLR 10 that the authentication has failed (S47). In the second method, when the communication unit 11 of the HSS / HLR 10 receives a signal (MAP_UL) for requesting continuation of the location registration process, the in-zone determination unit 14 determines whether to perform paging on the mobile device 40. Is determined (S48), and subsequent processing is changed based on the determination result. The processing at this point will be described with reference to FIG.

  When the location determination unit 14 of the HSS / HLR 10 receives a signal requesting continuation of the location registration process related to the mobile device 40 (S61), the mobile device 40 moves across the area after the previous location registration. Judge whether or not. Specifically, in the area determination unit 14, the exchange that has transmitted the location registration request signal and the signal requesting the continuation of the location registration process is the exchange that has jurisdiction over the area in which the location was present when the location registration request was transmitted last time. It is determined whether or not the exchange is different (S62). The information stored in the location registration information storage unit 13 of the HSS / HLR 10 indicates in which area the mobile device 40 was located when the location was registered last time (that is, in which area the switch was in charge). You can see it by reference. Therefore, the above determination is made based on this information. In the case of the present embodiment, the first exchange 20 performs processing related to the previous location registration of the mobile device 40, and the location registration information storage unit 13 also includes information specifying the first area and the first exchange 20 in the mobile device 40. Is stored in association with the information for identifying the. On the other hand, since the exchange that has transmitted the current location registration request signal and the signal requesting the continuation of the location registration process is the second exchange 30, an exchange different from the first exchange 20 requires a location registration request related to the mobile device 40. This means that a signal requesting continuation of the signal and the location registration process has been transmitted.

  If the exchange that has transmitted the location registration request signal and the signal that requests the continuation of the location registration process is the same as the exchange that has jurisdiction over the area in which the location registration request was transmitted last time (S62-NO), The zone determination unit 14 considers that the mobile device 40 has not moved, and makes a normal response (S63), and the location registration processing unit 12 continues the location registration process related to the mobile device 40.

  On the other hand, when the exchange that has transmitted the location registration request signal and the signal that requests the continuation of the location registration process is different from the exchange that has jurisdiction over the area that was in the area when the location registration request was last transmitted (YES in S62), The located area determination unit 14 instructs the paging processing unit 16 to instruct paging that identifies the mobile device 40 to the exchange that has jurisdiction over the area where the previous location registration processing was performed, that is, the first exchange 20 ( S64). Then, the paging processing unit 16 waits for a response from the mobile device 40 for a predetermined time (for example, several seconds), and confirms whether the mobile device 40 has responded to the paging from the first exchange 20 (S65). As a result of the paging of the first exchange 20 based on the instruction of the paging processing unit 16, when there is a response from the mobile equipment 40 (S 65 -YES), the mobile equipment 40 is located in the area under the jurisdiction of the first exchange 20. That is confirmed. Therefore, based on this result, the location registration processing unit 12 stops the processing and rejects the location registration processing related to the mobile device 40 (the mobile device 50 wearing the mobile device 40) with respect to the second exchange 30 (S66). On the other hand, if there is no response from the mobile device 40 as a result of paging of the first exchange 20 based on the instruction of the paging processing unit 16 (S65-NO), the mobile device 40 moves from the area under the jurisdiction of the first exchange 20 It is confirmed that Accordingly, it is determined that the new location registration request is transmitted from the mobile device 40 which is a regular terminal, a normal response is made (S63), and the location registration processing unit 12 performs the location registration processing related to the mobile device 40. continue.

  In the case of the example shown in FIG. 8, the exchange that has transmitted the location registration request signal and the signal that requests the continuation of the location registration process is the exchange that has jurisdiction over the area in which it was located when the location registration request was sent last time. This corresponds to the case where they are different (S62-YES). Therefore, based on the information stored in the location registration information storage unit 13, a signal (MAP_PRN) instructing paging of the mobile device 40 is transmitted to the first exchange 20 (S49). The first exchange 20 performs paging for the mobile device 40 based on this signal. In the case of the present embodiment, since the mobile station 40 is located under the first switch 20, it responds to paging (S50). The first exchange 20 transmits a signal (MAP_PRN.ack) indicating that there is a response from the mobile device 40 to the paging to the HSS / HLR 10 (S51). In the HSS / HLR 10, the location registration request from the mobile device 40 (the mobile device 50 disguised) transmitted from the second exchange 30 is illegal based on the response from the mobile device 40 to paging. And cancels the processing in the location registration processing unit 12 and transmits a signal (MAP_UL.neg.res) notifying that the location registration is rejected to the second exchange 30 (S52). The second exchange 30 transmits a signal (Attach Reject) notifying that the location registration has been rejected to the mobile device 50 wearing the mobile device 40 (S53). Thereby, in HSS / HLR10, it can prevent that the mobile device 50 which mounted | wore with the mobile device 40 performs communication connection via the 2nd exchange 30. FIG.

  In this way, when the HSS / HLR 10 does not receive a signal indicating that the authentication related to the mobile device has failed, the HSS / HLR 10 is different from the switch (first switch 20) that has passed through the previous location registration (first switch 20). When the location registration request signal is received from the second exchange 30), the mobile station is instructed to paging the mobile station to the exchange through which the previous location registration was performed. And it comprises the structure which judges whether a location registration process is continued based on the presence or absence of the response from the mobile device with respect to paging. With the HSS / HLR 10 having such a configuration, even when a location registration request signal is transmitted from an unauthorized terminal, if the authorized terminal responds to paging, the location registration from the unauthorized terminal is performed. Processing based on the request can be rejected. Therefore, it is possible to prevent a communication connection related to the unauthorized terminal from being established based on an unauthorized terminal location registration request via an exchange different from the exchange in which the authorized terminal is registered.

  Note that the block diagrams shown in FIGS. 2 and 6 used in the description of the above-described embodiment show functional unit blocks. These functional blocks (components) are realized by any combination of hardware and / or software. Further, the means for realizing each functional block is not particularly limited. That is, each functional block may be realized by one device physically and / or logically coupled, and two or more devices physically and / or logically separated may be directly and / or indirectly. (For example, wired and / or wireless) and may be realized by these plural devices.

  For example, the HSS / HLR 10 in one embodiment of the present invention may function as a computer that executes processing as a communication control device. FIG. 10 is a diagram illustrating an example of a hardware configuration of the HSS / HLR 10 corresponding to the communication control apparatus according to the present embodiment. The HSS / HLR 10 described above may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.

  In the following description, the term “apparatus” can be read as a circuit, a device, a unit, or the like. The hardware configuration of the HSS / HLR 10 may be configured to include one or a plurality of devices illustrated in the figure, or may be configured not to include some devices.

  Each function in the HSS / HLR 10 reads predetermined software (program) on hardware such as the processor 1001 and the memory 1002 so that the processor 1001 performs an operation and performs communication by the communication device 1004, memory 1002 and storage 1003. This is realized by controlling the reading and / or writing of data.

  For example, the processor 1001 controls the entire computer by operating an operating system. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, and the like. For example, the location registration processing unit 12 or the like may be realized by the processor 1001.

  Further, the processor 1001 reads a program (program code), software module, and data from the storage 1003 and / or the communication device 1004 to the memory 1002, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operations described in the above embodiments is used. For example, the HSS / HLR 10 may be realized by a control program stored in the memory 1002 and operated by the processor 1001, and may be realized similarly for other functional blocks. Although the above-described various processes have been described as being executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via a telecommunication line.

  The memory 1002 is a computer-readable recording medium and includes, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), and the like. May be. The memory 1002 may be called a register, a cache, a main memory (main storage device), or the like. The memory 1002 can store a program (program code), a software module, and the like that can be executed to implement the wireless communication method according to the embodiment of the present invention.

  The storage 1003 is a computer-readable recording medium, such as an optical disc such as a CD-ROM (Compact Disc ROM), a hard disc drive, a flexible disc, a magneto-optical disc (eg, a compact disc, a digital versatile disc, a Blu-ray). (Registered trademark) disk, smart card, flash memory (for example, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like. The storage 1003 may be referred to as an auxiliary storage device. The storage medium described above may be, for example, a database, server, or other suitable medium including the memory 1002 and / or the storage 1003.

  The communication device 1004 is hardware (transmission / reception device) for performing communication between computers via a wired and / or wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, or the like. For example, the communication unit 11 described above may be realized by the communication device 1004.

  The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, or the like) that accepts an external input. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that performs output to the outside. The input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).

  Each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured with a single bus or may be configured with different buses between apparatuses.

  The HSS / HLR 10 includes hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA). A part or all of each functional block may be realized by the hardware. For example, the processor 1001 may be implemented by at least one of these hardware.

  As described above, according to the communication control device according to the present embodiment, when the first method is executed, when the mobile device receives a signal indicating that the authentication related to the mobile device has failed, It is determined whether or not the mobile station is in the area corresponding to the exchange that has transmitted the signal indicating that the authentication has failed, and if the mobile station is in the area, the location registration information related to the mobile station is It is configured to be erased. Since the communication control apparatus has the above-described configuration, it indicates that the authentication related to the mobile device has failed even if the location registration processing of the mobile device has been advanced based on an unauthorized location registration request. Since it is possible to delete information related to location registration triggered by the reception of the signal, it is possible to prevent the communication connection of the mobile device from being continued by unauthorized location registration processing.

  Further, when the communication control apparatus of the present embodiment executes the second method, the position registration request signal is received from an exchange different from the exchange stored in the location registration information storage unit in association with the mobile device. In this case, the mobile station is instructed to page the mobile station stored in the location registration information storage unit. When there is a response from the mobile device to paging, the location registration process is stopped. With the communication control device having such a configuration, for example, when an unauthorized location registration request signal related to a mobile device is transmitted, if it is a situation where paging to the mobile device is possible, unauthorized location registration is performed. Processing based on the request can be rejected. Therefore, it is possible to prevent location registration from being performed based on an unauthorized location registration request and establishing a communication connection.

  In the above-described embodiment, the first method and the second method have been described separately. However, even if one communication control apparatus can execute both the first method and the second method. Good. That is, when the communication control apparatus receives a new location registration request from an exchange different from the exchange where the previous location registration was performed as in the second method, the previous location registration was performed. By instructing the exchange to paging the mobile device, it is confirmed whether or not it is a location registration request based on movement across the area of the mobile device, and the authentication failure result is displayed as in the first method. If received later, the location registration information may be deleted even if the location registration processing is completed. In this case, the communication control apparatus can more effectively prevent communication based on an unauthorized location registration request.

  Although the present embodiment has been described in detail above, it will be apparent to those skilled in the art that the present embodiment is not limited to the embodiment described in this specification. The present embodiment can be implemented as a modification and change without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present embodiment.

  The notification of information is not limited to the aspect / embodiment described in the present specification, and may be performed by other methods. For example, information notification includes physical layer signaling (for example, DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling), It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block))), other signals, or a combination thereof. Further, the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup message, an RRC connection reconfiguration message, or the like.

  Each aspect / embodiment described herein includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W-CDMA. (Registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, UWB (Ultra-WideBand), The present invention may be applied to a Bluetooth (registered trademark), a system using another appropriate system, and / or a next generation system extended based on the system.

  As long as there is no contradiction, the order of the processing procedures, sequences, flowcharts, and the like of each aspect / embodiment described in this specification may be changed. For example, the methods described herein present the elements of the various steps in an exemplary order and are not limited to the specific order presented.

  The notification of information is not limited to the aspect / embodiment described in the present specification, and may be performed by other methods. For example, information notification includes physical layer signaling (for example, DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling), It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block))), other signals, or a combination thereof. The RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup message, an RRC connection reconfiguration message, or the like.

  Each aspect / embodiment described herein includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W-CDMA. (Registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, UWB (Ultra-WideBand), The present invention may be applied to a Bluetooth (registered trademark), a system using another appropriate system, and / or a next generation system extended based on the system.

  As long as there is no contradiction, the order of the processing procedures, sequences, flowcharts, and the like of each aspect / embodiment described in this specification may be changed. For example, the methods described herein present the elements of the various steps in an exemplary order and are not limited to the specific order presented.

  The specific operation that is assumed to be performed by a specific device in this specification may be performed by the upper node in some cases. For example, when a specific device is an HSS / HLR, various operations performed for communication with a terminal in a network including one or a plurality of network nodes having the HSS / HLR. It is clear that can be performed by other network nodes other than HSS / HLR and / or HSS / HLR. In the above, the case where there is one network node other than the HSS / HLR is exemplified, but a combination of a plurality of other network nodes may be used.

  Information or the like can be output from the upper layer (or lower layer) to the lower layer (or upper layer). Input / output may be performed via a plurality of network nodes.

  Input / output information and the like may be stored in a specific location (for example, a memory) or may be managed by a management table. Input / output information and the like can be overwritten, updated, or additionally written. The output information or the like may be deleted. The input information or the like may be transmitted to another device.

  The determination may be performed by a value represented by 1 bit (0 or 1), may be performed by a true / false value (Boolean: true or false), or may be performed by comparing numerical values (for example, a predetermined value) Comparison with the value).

  Each aspect / embodiment described in this specification may be used independently, may be used in combination, or may be switched according to execution. In addition, notification of predetermined information (for example, notification of being “X”) is not limited to explicitly performed, but is performed implicitly (for example, notification of the predetermined information is not performed). Also good.

  Software, whether it is called software, firmware, middleware, microcode, hardware description language, or other names, instructions, instruction sets, codes, code segments, program codes, programs, subprograms, software modules , Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc. should be interpreted broadly.

  Also, software, instructions, etc. may be transmitted / received via a transmission medium. For example, software may use websites, servers, or other devices using wired technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or wireless technology such as infrared, wireless and microwave. When transmitted from a remote source, these wired and / or wireless technologies are included within the definition of transmission media.

  Information, signals, etc. described herein may be represented using any of a variety of different technologies. For example, data, commands, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these May be represented by a combination of

  Note that the terms described in this specification and / or terms necessary for understanding this specification may be replaced with terms having the same or similar meaning.

  As used herein, the terms “system” and “network” are used interchangeably.

  In addition, information, parameters, and the like described in this specification may be represented by absolute values, may be represented by relative values from a predetermined value, or may be represented by other corresponding information. . For example, the radio resource may be indicated by an index.

  The names used for the parameters described above are not limiting in any way. Further, mathematical formulas and the like that use these parameters may differ from those explicitly disclosed herein. Since various channels (eg, PUCCH, PDCCH, etc.) and information elements (eg, TPC, etc.) can be identified by any suitable name, the various names assigned to these various channels and information elements are However, it is not limited.

  A mobile device (mobile communication terminal) is a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal by those skilled in the art. , Mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate terminology.

  As used herein, the terms “determining” and “determining” may encompass a wide variety of actions. “Judgment”, “decision” can be, for example, calculating, computing, processing, deriving, investigating, looking up (eg, table, database or another (Searching in the data structure), and confirming (ascertaining) what has been confirmed may be considered as “determining” or “determining”. In addition, “determination” and “determination” include receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access. (accessing) (e.g., accessing data in a memory) may be considered as "determined" or "determined". In addition, “determination” and “decision” means that “resolving”, “selecting”, “choosing”, “establishing”, and “comparing” are regarded as “determining” and “deciding”. May be included. In other words, “determination” and “determination” may include considering some operation as “determination” and “determination”.

  The terms “connected”, “coupled”, or any variation thereof, means any direct or indirect connection or coupling between two or more elements and It can include the presence of one or more intermediate elements between two “connected” or “coupled” elements. The coupling or connection between the elements may be physical, logical, or a combination thereof. As used herein, the two elements are radio frequency by using one or more wires, cables and / or printed electrical connections, and as some non-limiting and non-inclusive examples By using electromagnetic energy, such as electromagnetic energy having a wavelength in the region, microwave region, and light (both visible and invisible) region, it can be considered to be “connected” or “coupled” to each other.

  As used herein, the phrase “based on” does not mean “based only on,” unless expressly specified otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”

  Where the designation "first", "second", etc. is used herein, any reference to that element does not generally limit the amount or order of those elements. These designations can be used herein as a convenient way to distinguish between two or more elements. Thus, a reference to the first and second elements does not mean that only two elements can be employed there, or that in some way the first element must precede the second element.

  The “unit” in the configuration of each device described above may be replaced with “circuit”, “device”, or the like.

  These terms are similar to the term “comprising” as long as “include”, “including” and variations thereof are used herein or in the claims. It is intended to be comprehensive. Furthermore, the term “or” as used herein or in the claims is not intended to be an exclusive OR.

  In this specification, it is intended to include a plurality of devices, except where only one device is clearly present in context or technically.

  Throughout this disclosure, the plural is included unless the context clearly indicates one.

  DESCRIPTION OF SYMBOLS 1 ... Communication system, 10 ... HSS / HLR, 11 ... Communication part, 12 ... Location registration process part, 13 ... Location registration information storage part, 14 ... Visited area determination part, 15 ... Visited area deletion process part, 16 ... Paging process , 20... 1st exchange, 30... 2nd exchange, 40, 50.

Claims (2)

A location registration information storage unit that stores information for identifying a mobile device, information for identifying an exchange that has jurisdiction over the area in which the mobile device is registered, and stores the information in association with each mobile device;
Information for identifying the mobile device is included, and a location registration request receiving unit that receives a location registration request signal related to the mobile device from the exchange;
An authentication instruction unit for instructing authentication related to the mobile device to the exchange that has transmitted the location registration request signal;
A location registration processing unit that performs location registration processing based on the location registration request signal and updates information stored in the location registration information storage unit;
In response to an instruction from the authentication instruction unit, an authentication result receiving unit that receives a signal indicating that authentication related to the mobile device has failed from the exchange;
An exchange that refers to the location registration information storage unit and has jurisdiction over the location registered area associated with the information identifying the mobile device corresponding to the signal indicating that the authentication received by the authentication result receiving unit has failed As the information for specifying the location registration information erasure unit for erasing the information on the location registration related to the mobile device when the information for specifying the exchange that has transmitted the location registration request signal is stored;
Including a communication control device. A location registration information storage unit that stores information for identifying a mobile device, information for identifying an exchange that has jurisdiction over the area in which the mobile device is registered, and stores the information in association with each mobile device;
Information for identifying the mobile device is included, and a location registration request receiving unit that receives a location registration request signal related to the mobile device from the exchange;
A location registration processing unit that performs location registration processing based on the location registration request signal and updates information stored in the location registration information storage unit;
With reference to the location registration information storage unit, the location registration request signal is used as information for specifying an exchange having jurisdiction over the location registered area associated with the information for specifying the mobile device included in the location registration request signal. Paging to the mobile station is performed with respect to the switch identified based on the information stored in the location registration information storage unit. A paging processing unit for instructing;
Based on the location registration request signal in the location registration processing unit when receiving a signal indicating that there is a response from the mobile device to the paging from the exchange that has instructed paging to the mobile device A location registration processing cancellation unit for canceling location registration processing related to the mobile device;
Including a communication control device.

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