JP4134048B2 - Mobile communication system, area updating method, mobile station, storage device, and calling method - Google Patents

Description

The present invention relates to registration of a location where a mobile device is located in a mobile communication network, and in particular, performs appropriate location registration corresponding to the mobile device's movement state and communication state, and can efficiently use radio resources. The present invention relates to a mobile communication system, an area update method, a mobile station, a storage device, and a calling method .

  A mobile communication system is provided in a mobile station (UE), a base station controller (RNC), a base station (BS), a mobile switch (MSC), and a mobile switch, and registers location information of the mobile station. And a location register (VLR). In such a mobile communication system, the location of the mobile device is not fixed but always moves. For this reason, management of registering the location of the mobile device in advance is necessary on the network (mobile exchange) side so that the communication can be established at the time of incoming to the mobile device.

  Specifically, the location of the mobile station is managed by a regional division called a location registration area as part of the subscriber information in a location register provided in the mobile exchange. The same location registration area information as that of the location register is also recorded on the mobile device side. The location registration procedure of the mobile device is requested and executed from the mobile device side to the network when the mobile device is turned on, and thereafter when the mobile device that is not communicating moves across the location registration area. The

  By the way, in recent years, the number of users using mobile communication systems has increased, and the amount of data on the network has also increased. Here, since radio resources between the mobile station and the base station on the network side are limited, various methods for efficiently using the radio resources are being studied.

  As a conventional location registration method, for example, when a mobile device moves across a location registration area, there is a configuration in which location registration is always performed when the location registration area is crossed. The network always recognizes the area where the mobile device is located in order to determine the area for sending a paging signal for incoming calls to the mobile device.

  FIG. 12 is a sequence diagram for explaining an example of a conventional location registration procedure for a mobile device. The location registration procedure will be described in sequence with reference to FIG. Assume that there are three location registration areas LA1, LA2, and LA3.

  First, (1) the mobile device 100 exists in the location registration area LA1 of the base station (BS1) 101, and the location registration area LA1 is transmitted via the base station 101 and the base station controller (RNC1) 111. Suppose that it is registered in the location register VLR in the mobile switching center (MSC) 104 (step S1200).

  Next, it is assumed that (2) the mobile device 100 has moved to a new location registration area LA2 (step S1201). At this time, the mobile device 100 recognizes that it has entered the new location registration area LA2 based on the notification information D1 of the located area (step S1202). Then, a location information registration request D2 in which the old location registration area LA1 is set is transmitted to the location register VLR of the mobile switch 104 via the base station (BS2) 102 and the base station controller (RNC2) 112.

  Next, (3) the mobile switch 104 that has received the location information registration request D2 from the mobile device 100 recognizes from the received signal that the corresponding mobile device 100 is located in the location registration area LA2, and the location register The final location registration area of the VLR is changed to LA2 (step S1203). After that, the mobile exchange 104 returns a location information registration request response D3 to the mobile device 100 to notify that the final location registration area is LA2.

  Next, (4) the mobile device 100 that has received the location information registration request response D3 recognizes that the location registration has been completed, and writes LA2 as the final location registration area in the location information storage area in the mobile device 100. Store (step S1204).

  Next, it is assumed that (5) the mobile device 100 has moved to the location registration area LA3 (step S1205). At this time, the mobile device 100 recognizes that a new location registration area has entered LA3 based on the notification information D4 of the area where it is located (step S1206). Then, the same location registration procedure as when moving to the location registration area LA2 is performed. First, a location information registration request D5 in which the old location registration area LA2 is set is transmitted to the location register VLR of the mobile switch 104 via the base station (BS3) 103 and the base station controller (RNC3) 113.

  Next, (6) the mobile switch 104 that has received the location information registration request D5 from the mobile device 100 recognizes from the received signal that the corresponding mobile device 100 is located in the location registration area LA3, and the location register The final location registration area of the VLR is changed to LA3 (step S1207). Thereafter, the mobile exchange 104 returns a location information registration request response D6 to the mobile device 100 to notify that the final location registration area is LA3.

  Next, (7) the mobile device 100 that has received the location information registration request response D6 recognizes that the location registration has been completed, and writes LA3 as the final location registration area in the location information storage area in the mobile device 100. Store (step S1208).

  As described above, when the mobile device 100 that has been in the location registration area LA1 moves to the location registration area LA2, the mobile device 100 performs the location registration procedure for the network, and the mobile device 100 and the mobile switch 104 The location information in the location register VLR is updated to the location registration area LA2. As a result, when an incoming call arrives at the corresponding mobile device 100, the network recognizes that the mobile device 100 is located in the location registration area LA2, and calls the relevant location registration area LA2 ( (Paging) procedure. Similarly, when the mobile device 100 moves to a new location registration area LA3, the location information is updated to the location registration area LA3.

  Thus, in the conventional mobile communication, the network grasps the position of the mobile device in units of location registration areas composed of a plurality of base stations. When receiving a call from the network to the mobile device, updating the location registration area is important in order to accurately grasp the location registration area. As technologies related to the update of the location registration area of the mobile device, there are technologies disclosed in Patent Documents 1 to 3 below.

Japanese Patent Laid-Open No. 7-87554 JP-A-7-250365 JP 2000-23234 A

  However, according to the prior art, every time the user moves across the location registration area, the location registration information is uniformly set to determine the incoming paging area for the network regardless of the frequency of the incoming call. Processing related to the update was performed. For this reason, when the mobile device frequently moves in the vicinity of the boundary of the position registration area, the position registration information update process described above is performed every time one of the position registration areas is entered. In particular, when a mobile device with low incoming frequency frequently updates location registration information, it means that network radio resources are wasted and network radio resources cannot be used efficiently. It was.

The present invention has been made in view of the above-described problems, and can appropriately manage the mobile device's movement state and communication state to efficiently register the location of the mobile device, thereby efficiently using the wireless resources of the network. An object of the present invention is to provide a mobile communication system, an area update method, a mobile station, a storage device, and a calling method that can be used.

  In order to solve the above-described problems and achieve the object, the following configuration is characterized. In a mobile communication system comprising a mobile station that makes an area information update request in response to a change in reception area information and a base station that broadcasts area information, the base station includes a registration completion position registration area and an extended registration completion position. A transmission unit that transmits to the mobile station area list information that may include a plurality of area information having a registration area, and the mobile station receives a reception unit that receives the area list information; A control unit that regulates the update request when the changed reception area information is included in the extended registration completion position registration area of the area list information.

According to this invention, every time the mobile station moves to a different location registration area, the base station records and manages this movement state. The base station transmits, to the mobile station, area list information that can include a plurality of pieces of area information having a registration completion position registration area and an extended registration completion position registration area of the mobile station. Only when the mobile station moves to a new location registration area not recorded in the storage unit, the mobile station requests the base station to register the location of the new location registration area. Since this mobile station does not request location registration for the base station for movement within the extended location registration area, the communication load on the network due to the location registration request is reduced, and radio resources are efficiently used. Can be used effectively.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing the configuration of a mobile device and a network constituting a mobile communication system according to the present invention, and a location registration area. As shown in the figure, the network has a plurality of location registration areas LA1, LA2, LA3 corresponding to communication service areas. A mobile device (UE) 100 such as a cellular phone can make a call while moving in these location registration areas LA1, LA2, and LA3.

  The network has location registration areas LA1, LA2, and LA3, and a plurality of base stations (BS, 101) 101a, 101b, and 101c that perform communication (including telephone calls) using radio waves with each mobile device 100. A base station controller (RNC, 111) 111a, 111b, 111c connected to each base station 101, and an external relay network (and mobile devices 100 inside the network) connected to each base station controller 111. Mobile switching center (MSC) 104 that controls outgoing and incoming calls. In the mobile exchange 104, a location register (VLR) 105 for registering the location information of the mobile device 100 is provided. The location register 105 manages the location of the mobile device 100 as a part of the subscriber information by a regional division called a location registration area.

  Base station 101 has mobile device 100 under its control. The base station control device 111 has means for transmitting a notification signal to the mobile device 100 via the base station 101. The mobile device 100 has means for receiving broadcast information transmitted from the base station control device 111 via the base station 101. The broadcast information includes location registration area information to which the base station 101 that transmitted the broadcast information belongs.

  The mobile device 100 has a means for recognizing a location registration area where the mobile device 100 is located based on the location registration area information and performing a predetermined location registration in the location register 105 when moving to a different location registration area. ing. Further, the mobile device 100 has a means for recording the same position registration area information as the location register 105.

  The mobile switch 104 has means for notifying the mobile device 100 of an incoming call when an incoming call is received from another network to the mobile device 100 under its control. When an incoming signal is received from another network, the final location registration area information of the corresponding mobile device 100 stored in the location register 105 is searched, and the base station controller 111 and the base station 101 corresponding to the entire location registration area are retrieved. The incoming call is notified by paging, and the mobile device 100 is activated to process the incoming call.

  FIG. 2 is a block diagram showing an internal configuration of a mobile device (UE). The mobile device 100 includes an antenna 201, a reception unit 202, a transmission unit 203, a signal analysis unit 204, a location registration area storage unit 205, a location registration request unit 206, and a paging response unit 207. . The mobile device 100 has a function of holding the position registration area in an expanded state.

  FIG. 3 is a block diagram showing the internal configuration of the mobile switching center (MSC). The mobile switch 104 performs incoming calls to the mobile device 100 and outgoing calls from the mobile device 100 with an external relay network, and a base station corresponding to a location registration area where the mobile device 100 is located at the time of incoming and outgoing calls. Network control is performed on a station (BS) via a base station controller (RNC). The mobile switch 104 includes a reception unit 301, a transmission unit 302, a signal analysis unit 303, a subscriber information storage unit 304, a location registration request response unit 305, and a paging request unit 306. A part of the subscriber information storage unit 304 is used as the location register (VLR) 105, and stores information related to the location registration area. In the following description, it is assumed that the subscriber information storage unit 304 has the function of the location register 105.

  Next, a configuration related to expansion of the location registration area, which is a main component of the present invention, will be described. In the present invention, in order to reduce the number of times of location registration of the mobile device 100, for the mobile device 100 having a high movement frequency and a low incoming frequency, a plurality of location registration areas are combined and stored as final location registration area information. For example, when the mobile device 100 moves to the new location registration area LA2 in the old location registration area LA1, the combination is LA1 + LA2, which is referred to as expansion of the location registration area. Thereby, when the mobile device 100 frequently moves between specific location registration areas in a short time, the mobile device 100 does not execute the location registration process each time, and the location registration for the network is performed. The number of times is reduced to enable efficient use of network radio resources. For this reason, the mobile device 100 and the mobile switch 104 are provided with means for executing location registration area expansion and location registration expansion area cancellation described later.

  The subscriber information storage unit 304 of the mobile switch 104 has functions of a movement recording unit that records the movement state of the mobile unit 100 and an incoming call recording unit. This movement recording means records in the subscriber information storage unit 304 the information that the mobile device 100 has moved from one location registration area to another location registration area and the time at which the mobile device 100 moved. When the mobile device 100 executes the location registration process, the mobile recording means sends information added when the location information registration request from the mobile device 100 passes through the base station control device 111 (the cell that received the message). The current location registration area (for example, LA2) of the mobile device 100 can be recognized based on the correspondence information of the location registration area. In addition, since the location information registration request includes old location registration area information (for example, LA1), the mobile recording unit has moved from one location registration area to another location registration area ( For example, the movement from LA1 to LA2) can be recognized, and the information moved to the location registration area and the time moved are recorded.

  The incoming recording unit records that the mobile device 100 has received an incoming call and the time in the subscriber information storage unit 304 (location register 105). The subscriber information storage unit 304 of the mobile switch 104 recognizes that the mobile device 100 has received an incoming call when the mobile device 100 performs incoming call control (call control), and records the occurrence of the incoming call and the incoming time. .

  The signal analysis unit 303 of the mobile switch 104 has a function of location registration area expansion means. The location registration area expansion means expands the location registration area of the mobile device 100 according to the number of incoming calls to the mobile device 100 and the number of times the mobile device 100 has moved. The subscriber information storage unit 304 counts the number of incoming calls to the mobile device 100 within a predetermined time based on the information recorded by the incoming call recording means, and the number of incoming calls does not exceed a predetermined threshold. Confirm. Thereafter, the number of movements of the mobile device 100 within a predetermined time is counted based on the information recorded by the above movement recording means, and when the number of movements exceeds a predetermined threshold, the final position of the mobile device 100 As the registration area, the location registration area is expanded by combining a plurality of location registration areas according to movement. The expanded plurality of location registration areas are notified to the mobile device 100 as location registration completion areas of the mobile device 100.

  Further, the signal analysis unit 303 of the mobile switch 104 has a function of location registration extended area release means (not shown). The location registration extended area releasing means returns the plurality of location registration areas that have been combined and expanded to the original individual location registration areas. The subscriber information storage unit 304 of the mobile exchange 104 counts the number of incoming calls to the mobile device 100 within a predetermined time based on the information recorded by the incoming call recording means when the incoming call arrives at the mobile device 100. Then, when the number of incoming calls exceeds a predetermined threshold value, the location registration extended area releasing means determines to return the extended plurality of location registration areas to the original individual location registration areas. Then, an extension position registration cancellation notification is sent to the corresponding mobile device 100 when a paging request is made.

  The location registration area storage unit 205 of the mobile device 100 has a function of extended area storage means (not shown). This extended area storage means stores a plurality of location registration areas notified from the subscriber information storage unit 304 (location register 105) of the mobile switch 104 as location registration completion areas at the time of location registration. The mobile station 100 is notified of a plurality of expanded location registration areas as a location registration completion area by the location registration area expansion means of the mobile exchange 104 described above. This location registration completion area is written in the storage area of the location registration area storage unit 205 of the mobile device 100 as final location registration area information. Also, when an extended location registration cancellation notification is received by a paging request from the mobile switch 104, information indicating extension cancellation (for example, NULL) is written as location registration area information, and an extended location registration release response is returned to the mobile switch 104 at the time of a paging response. To do.

  Next, the contents of each signal used for location registration expansion will be described. FIG. 4 is a diagram showing signal contents related to expansion and cancellation of a location registration area transmitted / received between a mobile device and a network (mobile exchange). A location registration request signal 401 and a paging response signal 404 are transmitted from the mobile device 100 to the network. From the network to the mobile device 100, a location registration request response signal 402 and a paging request signal 403 are transmitted. In the figure, the information enclosed by the diagonal lines is the information expanded by the present invention.

  The location registration request signal 401 includes information on the old location registration area 401a and the extended old location registration area 401b. The extended old location registration area 401b is provided for transmitting a location registration area indicated by the old location registration area 401a and a list of location registration areas that currently constitute one location registration area from the mobile device 100 to the network. It is done.

  The network-side base station control device 111 is preset with information on the correspondence between the cell that received the message from the mobile device 100 and the location registration area. The location registration area 401c is added to the location registration request signal 401 received from 100 and transmitted.

  The location registration request response signal 402 includes information of a registration completion location registration area 402a and an extended registration completion location registration area 402b. The extended registration completion location registration area 402b provides the mobile device 100 with a location registration area list that constitutes a location registration area that apparently constitutes a location registration area in the registration completion location registration area 402a determined by the network. Provided to transmit.

  The paging request signal 403 includes information on the incoming user identifier 403a and the expanded position registration release notification 403b. The enlarged position registration cancellation notification 403b is provided for notifying the mobile device 100 of a notification that the network side has decided to restore all the enlarged position registration areas.

  The paging response signal 404 includes information on the incoming user identifier 404a and the expanded location registration cancellation response 404b. The enlarged location registration release response 404b receives and identifies the enlarged location registration release notification 403b set in the paging request signal 403, and notifies the network side that all the enlarged location registration areas have been restored. To be provided.

  In this way, each of the above signals, that is, the location registration request signal 401, the location registration request response signal 402, the paging request signal 403, and the paging response signal 404 all include expanded information. Such extended information of the present invention can be used in the existing location registration method without any problem even in the existing (conventional method) mobile device 100 and the network. For example, regarding the information of the extended old location registration area 401b extended in the location registration request signal 401, in the existing network in which this extended information is not considered, the extended portion is discarded and the existing old location registration area 401a is discarded. Only the information of can be interpreted. In addition, with respect to the information of the extended registration completion position registration area 402b extended in the position registration request response signal 402, the existing mobile device 100 that does not consider the extended information discards the extended portion and performs the existing registration. Only the information of the completion position registration area 402a can be interpreted.

  Also, with respect to the information of the extended location registration cancellation notification 403b extended in the paging request signal 403, the existing mobile device 100 that does not consider the extended information discards the extended portion and the existing incoming user identifier 403a. Only the information can be interpreted. Note that the existing mobile device 100 does not assume the expansion of the location registration area itself, and therefore does not perform the process related to the extension cancellation of the location registration area. Also, with regard to the information of the expanded location registration cancellation response 404b expanded in the paging response signal 404, the existing mobile device 100 does not assume the expansion of the location registration area itself, so that a response to cancel the expansion of the location registration area is sent. Not performed. As described above, even if the present invention is applied to the existing mobile device 100 and the network, the location registration area according to the present invention is not expanded or canceled, so that the location registration by the existing method can be performed without any trouble. Yes.

  FIG. 5 is a diagram showing data relating to the location registration area stored in the subscriber information storage unit of the mobile exchange. Each time a location registration request signal 401 is transmitted from the mobile device 100, the subscriber information storage unit 304 (location register 105) stores various types of information related to the location registration area of the mobile device 100.

  The illustrated subscriber information storage unit 304 is a storage unit provided for each subscriber (user of the mobile device 100), and the information stored in the subscriber information storage unit 304 is the past of the corresponding subscriber. Location registration area transition record 501 for L time, cumulative movement count 502 for past L time, incoming record 503 for past P time, final location registration area information 504, final location registration area information expansion unit 505, and other Subscriber information 506. An arbitrary value (time) is set in advance for the L and P times. The location registration area stored in the final location registration area information 504 stores information on the registration completion location registration area 402a of the location registration request response signal 402 transmitted to the mobile device 100, and the final location registration area information expansion unit 505. Stored in the location registration area is information on the extended registration completion location registration area 402b of the location registration request response signal 402 transmitted to the mobile device 100.

  The mobile device 100 transmits a location registration request signal 401 to the mobile switch 104 when a location registration request is made. As described above, the location registration request signal 401 includes the information on the old location registration area 401a that is the past location of the mobile device 100, the information on the extended old location registration area 401b, and the current location information added by the base station controller 111. It includes information on the location registration area 401c that is the location of the mobile device 100.

  In the location registration area transition record 501 of the past L hours in the subscriber information storage unit 304, information on all location registration areas where the mobile device 100 has moved in the past L hours and the time at the time of movement are recorded. The cumulative number of movements 502 in the past L hours records the number of times the mobile device 100 has moved between specific location registration areas in the past L hours. In the incoming record 503, all the incoming times of the past P hours for the mobile device 100 are recorded (two in the illustrated example). The final location registration area information 504 stores the final location registration area of the mobile device 100. The final location registration area information expansion unit 505 stores a list of location registration areas that apparently constitute one location registration area with the location registration area included in the final location registration area 504.

  FIG. 6 is a diagram showing an internal configuration of a location registration area storage unit provided in the mobile device. The location registration area storage unit 205 includes a final location registration area information unit 601 and a final location registration area information extension unit 602. As described above, the location registration request response signal 402 transmitted from the network includes information of the registration completion location registration area 402a and the extended registration completion location registration area 402b extended (added) according to the present invention. The information of the registration completion position registration area 402a and the extended registration completion position registration area 402b apparently constitutes one position registration area.

  The final location registration area information section 601 stores information on the location registration area where the location registration was completed last, that is, the registration completion location registration area 402a transmitted from the network. The final location registration area information expansion unit 602 stores information on the extended registration completion location registration area 402b.

(Operations when expanding the location registration area in a mobile device)
Next, the operation of the mobile device 100 when expanding the location registration area according to the present invention will be described. When the mobile device 100 is in the network location registration area (any one of LA1, LA2, and LA3), the receiving unit 202 receives broadcast information transmitted from the network through the antenna 201 (see FIG. 2). The signal analysis unit 204 uses the final location registration area information unit 601 stored in the location registration area storage unit 205 or the final location registration area information extension unit 602 (the current location registration area information included in the received notification information). (See FIG. 6).

  The signal analysis unit 204 includes the information of the registration completion position registration area 402a stored in the final position registration area information unit 601 and the information of the extended registration completion position registration area 402b stored in the final position registration area information extension unit 602. Perform verification. As a result, when the information on the current location registration area received by the broadcast information is not included in the final location registration area information unit 601 or the final location registration area information extension unit 602, the location registration request unit 206 is notified. And instructing to start location registration processing on the network.

  The location registration request unit 206 extracts information of the registration completion location registration area 402a from the final location registration area information unit 601 of the location registration area storage unit 205, and the old location registration area 401a of the location registration request signal 401 (see FIG. 5). Set to. At the same time, the information of the extended registration completion position registration area 402b recorded in the final position registration area information extension unit 602 is extracted and set in the extended old position registration area 401b, and these are set via the transmission unit 203 and the antenna 201. Transmit to the network (base station 101).

  On the other hand, when the current location registration area information received by the notification information is included in the location registration area storage unit 205, the signal analysis unit 204 determines that the location registration procedure is unnecessary and ends the processing. When the location registration process by the network is completed, the mobile device 100 receives the location registration request response signal 402 transmitted from the network by the receiving unit 202 through the antenna 201. The signal analysis unit 204 recognizes that the location registration has been completed normally, and uses the information on the registration completion location registration area 402 a included in the location registration request response signal 402 as the final location registration area information unit 601 of the location registration area storage unit 205. When the location registration request response signal 402 includes information on the extended registration completion location registration area 402b, the extended registration completion location registration area 402b is written in the final location registration area information extension unit 602. At the time of this writing, all the original information already stored is erased. In this way, the mobile device 100 expands the location registration area information stored in the location registration area storage unit 205 in accordance with a network instruction.

(Operation when canceling expansion of location registration area in mobile device)
Next, the operation of the mobile device 100 for canceling the expansion of the position registration area will be described. The mobile device 100 receives the paging request signal 403 (see FIG. 4) transmitted from the network at the time of an incoming call through the antenna 201 by the receiving unit 202. When the paging request signal 403 includes the information of the enlarged position registration cancellation notification 403b, the signal analysis unit 204 deletes all the information recorded in the position registration area storage unit 205 (see FIG. 2) and performs paging. The response unit 207 instructs the network to transmit the paging response signal 404 (see FIG. 4) including the information of the extended location registration cancellation response 404b via the transmission unit 203 and the antenna 201. In this way, the mobile device 100 erases all the enlarged location registration areas (location registration area information) stored in the location registration area storage unit 205 in accordance with network instructions.

  Next, operations for expanding and canceling the location registration area on the mobile exchange 104 side will be described. When the mobile exchange 104 receives the location registration request signal 401 from the mobile device 100, the mobile exchange 104 executes processing related to expansion of the location registration area. On the other hand, when an incoming call to mobile device 100 occurs, a process for canceling the enlarged location registration area is executed.

(Operations when expanding the location registration area in a mobile exchange)
FIG. 7 is a flowchart for explaining the operation of the mobile exchange 104 when the location registration area is enlarged. When a location registration request signal 401 (see FIG. 5) is transmitted from the mobile device 100, the location registration request signal 401 is received by the receiving unit 301 of the mobile switch 104 via the base station 101 and the base station controller 111. To do.

  As a result, the signal analysis unit 303 of the mobile switch 104 combines the location registration area included in the old location registration area 401a included in the location registration request signal 401 with the location registration area included in the extended old location registration area 401b. The mobile device 100 is located between the apparent location registration area (referred to as location registration area A) and the location registration area (referred to as location registration area B) included in the information of the location location registration area 401c sent simultaneously. Is recorded together with the time in the subscriber information storage unit 304 (step S701).

  Specifically, as shown in FIG. 5, the subscriber information storage unit 304 records the information of the corresponding transition location registration area and the travel time as the location registration area transition record 501 of the past L hours. In the cumulative number of movements 502 in the past L hours, the corresponding transition position registration area and the total number of movements are recorded.

  Further, the signal analysis unit 303 sets the information on the location registration area 401 c included in the location registration request signal 401 in the final location registration area information 504 of the subscriber information storage unit 304.

  Next, during the past P hours, it is determined whether the number of incoming calls Q to the mobile device 100 exceeds a preset threshold value R (Q> R) (step S702). This determination is made with reference to the incoming record 503 of the past P hours in the subscriber information storage unit 304. Here, when the number of incoming calls Q to the mobile device 100 is equal to or less than a preset threshold value R (Q ≦ R) (step S702: No), the mobile device 100 moves in the past for the past L hours. It is determined whether or not the number M of movements between the registered position registration area A and the current position registration area B exceeds a preset threshold value N (M> N) (step S703). .

  This determination is made with reference to the cumulative number of movements 502 in the past L hours in the subscriber information storage unit 304. Here, when the number of movements M of the mobile device 100 exceeds a preset threshold value N (M> N) (step S703: Yes), the combination of the location registration areas A + B is determined, and this combination result is obtained as the subscriber information. The information is recorded in the storage unit 304 and notified to the mobile device 100 (step S704). Specifically, the location registration area B is recorded in the final location registration area information 504, and the location registration area A to be newly combined is recorded in the final location registration area information expansion unit 505.

  Then, it instructs the location registration request response unit 305 to transmit a location registration request response signal 402 (see FIG. 4) to the mobile device 100. The location registration request response unit 305 extracts the final location registration area information 504 in the subscriber information storage unit 304 and the information recorded in the final location registration area information expansion unit 505, respectively. Then, the location registration area B recorded in the final location registration area information 504 is assigned as information of the registration completion location registration area 402a of the location registration request response signal 402, and the final location registration is used as information of the extended registration completion location registration area 402b. The location registration area A recorded in the area information expansion unit 505 is allocated.

  Thereafter, a location registration request response signal 402 is transmitted from the transmitter 302 to the mobile device 100 via the base station controller (RNC) 111 and the base station (BS) 101, and processing for expanding the location registration area is performed. Exit. In this way, the network expands the apparent location registration area based on the movement record and the incoming call record of the mobile device 100.

  On the other hand, when the number of incoming calls Q to the mobile device 100 exceeds a preset threshold value R (Q> R) in step S702 (step S702: Yes), and the number of movements of the mobile device 100 in step S703. When M is less than or equal to a preset threshold value N (M ≦ N) (step S703: No), the final location registration area information of this mobile device 100 is set to B and notified to the mobile device 100 (step S705). The process for enlarging the position registration area is terminated.

(Operations at the time of canceling location registration area expansion in a mobile switching system)
FIG. 8 is a flowchart for explaining the operation of the mobile exchange when the location registration area expansion is canceled. When there is an incoming call to the mobile device 100 from the external relay network, the receiving unit 301 of the mobile switch 104 receives an incoming call request from the relay network. Then, the signal analysis unit 303 recognizes which subscriber (mobile device 100) received the incoming call from the incoming call request, and thereafter, the final location registration area included in the subscriber information storage unit 304 for the corresponding subscriber. The information expansion unit 505 confirms whether or not the expansion position registration area is being applied (step S801).

  When the information is set in the final location registration area information expansion unit 505, it is determined that the expansion location registration area is being applied (step S801: Yes), and the reference is expanded with reference to the incoming record 503 of the past P time of the corresponding subscriber. Decide whether to cancel the location registration area. It is determined whether the number of incoming calls Q in the past P time exceeds a preset threshold value R (Q> R) (step S802).

  Here, when the number of incoming calls Q in the past P time exceeds the threshold value R (Q> R) (step S802: Yes), in order to cancel the enlarged position registration area, all the enlarged position registration areas are used as a basis. Decide to return. Then, the paging request unit 306 notifies the corresponding mobile device 100 via the base station (BS) from the transmitting unit 302 of the paging request signal 403 including the information of the expanded location registration release notification 403b (see FIG. 4). (Step S803).

  Thereafter, it is determined whether or not the paging response signal 404 including the information of the enlarged position registration cancellation response 404b is received from the mobile device 100 (step S804). When the reception unit 301 receives the paging response signal 404 from the mobile device 100 and the signal analysis unit 303 detects that the paging response signal 404 includes the information of the enlarged position registration release response 404b (step (S804: Yes), all the enlarged location registration areas are returned (step S805). Specifically, after all the information recorded in the final location registration area information expansion unit 505 of the subscriber information storage unit 304 is erased, normal incoming call processing is performed (step S806). In this way, the network restores the expanded location registration area for the mobile device 100 with a high incoming frequency based on the incoming frequency of the mobile device 100, and ends the processing for canceling the expansion of the location registration area.

  By the way, if no information is set in the final location registration area information extension unit 505 in step S801, it is determined that the extended location registration area is not applied (step S801: No), and normal incoming call processing is performed (step S801). S806). Similarly, when the number of incoming calls Q in the past P time is equal to or less than the threshold value R (Q ≦ R) in step S802 (step S802: No), and in step S804, the paging response signal 404 from the mobile device 100 is received. If not (step S804: No), next, normal incoming call processing is performed (step S806), and the location registration area enlargement cancellation processing is terminated.

  Next, an overall processing procedure for expanding and releasing the location registration area described above will be described. In the following description, the subscriber information storage unit 304 corresponds to the location register 105 in which the location information of the mobile device 100 is registered, and the mobile switch 104 accesses the subscriber information storage unit 304 as the location register 105 to access the location information. The registration area shall be extended and canceled.

  FIG. 9 is a sequence diagram showing the procedure for expanding the location registration area. In the figure, a mobile device (UE) 100, base stations (BS1 to 3) 101a to 101c covering each location registration area (LA1 to LA3), base station controllers (RNC1 to 3) 111a to 111c, A mobile switch (MSC) 104 and a location register (VLR) 105 are shown and the exchange of signals between the devices is described. Hereinafter, the procedure for expanding the location registration area when the mobile device 100 has moved will be described in detail.

  First, it is assumed that the mobile device 100 has been registered in the location registration area LA1 (step S901). Thereafter, it is assumed that the mobile device 100 has moved into the new location registration area LA2 (step S902). At this time, the mobile device 100 receives broadcast information (LA2) from the base station controller (RNC2) 111b in the location registration area LA2 via the base station (BS2) 101b.

  Based on this notification information, the mobile device 100 recognizes that it has entered a new location registration area (LA2) (step S903). Then, the location registration request signal 401 shown in FIG. 5 is transmitted. The information of the old location registration area 401a of the location registration request signal 401 is the old registration location area LA1. This location registration request signal 401 is sent from the base station (BS2) 101b in the location registration area LA2 to the mobile switching center (MSC) 104 via the base station controller (RNC2) 111b.

  When the subscriber information storage unit 304 (location register 105) in the mobile exchange (MSC) 104 receives the location registration request signal 401, the final location of the mobile unit 100 in the subscriber information storage unit 304 shown in FIG. The registration area information 504 is changed to LA2. Further, the movement of the location registration areas LA1 to LA2 is recorded together with the time in the location registration area transition record 501 for the past L hours (step S904).

  Next, with reference to the incoming record 503 of the past P hours for this mobile device 100, the number of incoming calls Q per unit time does not exceed the threshold R (corresponding to step S702: No in FIG. 7), and the past L It is satisfied that the number M of movements between the location registration areas LA1 to LA2 per unit time exceeds the threshold value N (corresponding to step S703: Yes in FIG. 7) with reference to the cumulative number of movements 502 of time. Judge. If both are satisfied, it is determined that the location registration areas LA1 and LA2 are the same location registration area (LA1 + LA2) (step S905).

  At this time, LA2 is recorded in the final location registration area information 504 of the subscriber information storage unit 304, and LA1 is recorded in the final location registration area information expansion unit 505. Then, the mobile exchange 104 transmits a location registration request response signal 402 shown in FIG. LA2 recorded in the final location registration area information 504 is set as information on the registration completion location registration area 402a of the location registration request response signal 402, and information on the extended registration completion location registration area 402b is used as information on the final location registration area 402b. LA1 recorded in the information expansion unit 505 is set. The location registration request response signal 402 is transmitted from the base station controller (RNC2) 111b in the location registration area LA2 to the mobile device 100 via the base station (BS2) 101b.

  When receiving the location registration request response signal 402, the mobile device 100 writes LA2, which is information on the registration completion location registration area 402a, in the final location registration area information unit 601 of the location registration area storage unit 205. Also, LA1, which is information of the extended registration completion position registration area 402b, is written in the final position registration area information extension unit 602 (step S906).

  Thereafter, it is assumed that the mobile device 100 has moved again to the position registration area LA1 (step S907). At this time, the mobile device 100 receives broadcast information (LA1) from the base station controller (RNC1) 111a in the location registration area LA1 via the base station (BS1) 101a. Based on this notification information, the mobile device 100 recognizes that it has entered the location registration area (LA1). At this time, in the location registration area storage unit 205 of the mobile device 100, LA2 is already written in the final location registration area information unit 601 and LA1 is written in the final location registration area information extension unit 602. That is, when the mobile device 100 moves within the expanded location registration area LA1 + LA2, the mobile device 100 determines that the mobile device 100 moves within the same location registration area and does not activate the location registration procedure (step S908).

  Next, FIG. 10 is a sequence diagram showing a procedure for further expanding the location registration area. A procedure for further expanding the expanded position registration area shown in FIG. 9 will be described below.

  It is assumed that the mobile device 100 has been registered in the expanded state of the location registration area LA1 + LA2, and then this mobile device 100 has moved into a new location registration area LA3 (step S1001). At this time, the mobile device 100 receives broadcast information (LA3) from the base station controller (RNC3) 111c in the location registration area LA3 via the base station (BS3) 101c.

  Based on this notification information, the mobile device 100 recognizes that it has entered a new location registration area (LA3) (step S1002). Then, the location registration request signal 401 shown in FIG. 5 is transmitted. The information of the old location registration area 401a of the location registration request signal 401 is the old location registration area LA2, and the information of the extended old location registration area 401b is LA1. This location registration request signal 401 is sent from the base station (BS3) 101c in the location registration area LA3 to the mobile switching center (MSC) 104 via the base station controller (RNC3) 111c.

  When receiving the location registration request signal 401, the subscriber information storage unit 304 in the mobile switching center (MSC) 104 changes the final location registration area information 504 of the mobile device 100 to LA3 as shown in FIG. Further, the movement of the position registration area (LA1 + LA2) ⇔LA3 is recorded together with the time in the position registration area transition record 501 for the past L hours (step S1003).

  Next, with reference to the incoming record 503 of the past P hours for this mobile device 100, the number of incoming calls Q per unit time does not exceed the threshold R (corresponding to step S702: No in FIG. 7), and the past L Referring to the cumulative number of times of movement 502, the number of movements M between the position registration area (LA1 + LA2) 累積 LA3 per unit time has exceeded the threshold value N (corresponding to step S703: Yes in FIG. 7). Determine if it is met. If both are satisfied, it is determined that the location registration areas LA1 + LA2 and LA3 are the same location registration area (LA1 + LA2 + LA3) (step S1004).

  At this time, LA3 is recorded in the final location registration area information 504 of the subscriber information storage unit 304, and LA1 and LA2 are recorded in the final location registration area information expansion unit 505. Then, the mobile exchange 104 transmits a location registration request response signal 402 shown in FIG. LA3 recorded in the final location registration area information 504 is set as information of the registration completion location registration area 402a of the location registration request signal 401, and final location registration area information is set as information of the extended registration completion location registration area 402b. LA1 + LA2 recorded in the expansion unit 505 is set. The location registration request response signal 402 is transmitted from the base station controller (RNC3) 111c in the location registration area LA3 to the mobile device 100 via the base station (BS3) 101c.

  When receiving the location registration request response signal 402, the mobile device 100 writes LA3, which is information of the registration completion location registration area 402a, in the final location registration area information unit 601 of the location registration area storage unit 205. Also, (LA1 + LA2), which is information of the extended registration completion position registration area 402b, is written in the final position registration area information extension unit 602 (step S1005).

  According to the above procedure, each time the frequency of movement of the mobile device 100 with low incoming frequency between different location registration areas exceeds a preset threshold value, these different location registration areas are combined. When the mobile device 100 moves within the newly expanded location registration area, the mobile device 100 does not perform the location registration procedure. Thus, the location registration area is expanded as the mobile device 100 has a higher movement frequency and a lower incoming frequency. In such a mobile device 100, since the ratio of the registered location within the expanded location registration area increases every time the mobile device 100 moves between the location registration areas, the number of times the location registration procedure is activated is reduced. Therefore, useless transmission / reception for location registration between the mobile device 100 and the network can be omitted, and wireless resources can be used efficiently.

  Next, an overall processing procedure for canceling the expansion of the position registration area described above will be described. FIG. 11 is a sequence diagram showing the procedure for canceling the extension of the location registration area. The procedure for canceling the extension of the extended position registration area shown in FIG. 10 will be described below.

  The mobile device 100 is used as one location registration area that is an extension of the location registration area LA1 + LA2 + LA3. Further, it is assumed that the mobile device 100 is located under the location registration area LA2 (step S1101). When an incoming call request to the mobile device 100 is generated, the mobile exchange 104 records the incoming call in the past P time incoming record 503 of the subscriber information storage unit 304 together with the time (step S1102). In addition, referring to the incoming record 503 of the past P time, it is determined whether the number of incoming calls Q of the mobile device 100 within a certain time exceeds a preset threshold value R (corresponding to step S802 in FIG. 8). If so, the mobile exchange 104 determines to restore all location registration areas including the enlarged location registration area (step S1103).

  Then, the mobile exchange 104 activates the paging procedure for all the expanded location registration areas (LA1, LA2, LA3). The mobile switch 104 includes the information of the enlarged position registration release notification 403b in the paging request signal 403 (see FIG. 4) transmitted to the mobile device 100. This enlarged position registration cancellation notification 403b notifies the mobile device 100 that all the position registration areas have been restored.

  The mobile device 100 that has received this information writes information indicating extension cancellation (for example, NULL) to the final location registration area information unit 601 and the final location registration area information extension unit 602 of the location registration area storage unit 205, respectively. (Step S1104). Then, the mobile device 100 includes the information of the extended location registration release response 404b in the paging response signal 404 (see FIG. 4), and confirms that the mobile switch 104 has received the information of the extended location registration release notification 403b normally. Notice.

  Thereafter, the mobile exchange 104 receives the paging response signal 404 including the information of the expanded location registration cancellation response 404b, thereby deleting the information on all the location registration areas related to the mobile device 100 and expanding the location registration area. Are all returned (step S1105). Specifically, the final location registration area information 504 in the subscriber information storage unit 304 and the information stored in the final location registration area information expansion unit 505 are deleted. In this state, mobile device 100 receives the incoming call and is in communication (step S1106).

  Then, after the end of communication, the mobile device 100 recognizes that the location is not currently registered in the network based on the fact that the final location registration area stored in the mobile device 100 is in the extended cancellation state (NULL). Then, a new location registration procedure is started (step S1107). At this time, since the mobile device 100 is located in the location registration area LA2, the mobile device 100 receives broadcast information (LA2) from the corresponding base station control device (RNC2) 111b via the base station (BS2) 101b. The mobile device 100 recognizes that the current location registration area is LA2 based on the notification information, and transmits a location registration request signal 401 (see FIG. 5). At this time, the information of the old location registration area 401a and the extended old location registration area 401b of the location registration request signal 401 is NULL.

  Upon receiving the location registration request signal 401, the mobile switch 104 performs a normal location registration procedure, and changes the final location registration area information 504 of the mobile device 100 in the subscriber information storage unit 304 to LA2 (step S1108). ). Then, the mobile exchange 104 transmits a location registration request response signal 402 shown in FIG. As information of the registration completion position registration area 402a of the position registration request response signal 402, LA2 recorded in the final position registration area information 504 is set. The mobile device 100 writes LA2 as the final location registration area in the final location registration area information unit 601 of the location registration area storage unit 205 (step S1109).

  In this way, the expanded location registration area can be cleared, that is, restored to the original when the frequency of incoming calls to the mobile device 100 exceeds a preset threshold. That is, for the mobile device 100 with a high incoming frequency, the expansion of the location registration area is cancelled. Therefore, it is possible to avoid an increase in the paging signal transmitted from the base station (BS) in a plurality of location registration areas to the mobile device 100 when the mobile device 100 receives an incoming call. As a result, the communication burden on the network is reduced, and wireless resources can be used efficiently.

  As described above, the present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the mobile device 100 does not clear the location registration area information stored in the final location registration area information unit 601 shown in FIG. It is also possible to clear only the information of the enlarged location registration area stored in the. If it is determined whether the location registration area located at the time of clearing is the same as the location registration area recorded in the final location registration area information unit 601, in this case, the location registration request signal is not transmitted to the network. Thus, more efficient use of radio resources can be achieved.

  Further, the above-described method for expanding and canceling the location registration area can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on various recording media and executed by being read from the recording media by a computer. Further, this program may be a transmission medium that can be distributed via a network such as the Internet.

  As described above, according to the present invention, an optimum position registration area can be set in accordance with the moving state of the mobile device. For a mobile device that has a low incoming frequency and moves frequently between location registration areas, the location registration request frequency from the mobile device to the network is reduced by combining a plurality of location registration areas. For mobile devices with high frequency of incoming calls, the combination of multiple location registration areas is canceled at the time of incoming calls, preventing simple expansion of the location registration area and increasing the paging signal transmitted from the network to the mobile device at the time of incoming calls. Can be avoided. Therefore, it is possible to reduce the network communication load and to efficiently use radio resources.

  As described above, according to the present invention, even when the mobile device moves between different location registration areas in the mobile communication network, appropriate location registration corresponding to the moving state is performed, and a new location registration area is created. The present invention is suitable for providing a mobile exchange that can efficiently use radio resources by performing new location registration for the mobile device only when it has moved. In addition, even when the present invention moves between different location registration areas in the mobile communication network, the present invention performs appropriate location registration corresponding to the moving state, and only moves to a new location registration area. It is suitable for providing a mobile device that can efficiently use radio resources by transmitting a registration request. In addition, the present invention performs appropriate location registration corresponding to the moving state in the mobile switch even when the mobile device moves between different location registration areas in the mobile communication network. The present invention is suitable for providing a mobile communication system and a location registration expansion method capable of requesting a new location registration only when moving to a location registration area and efficiently using radio resources.

It is a schematic diagram showing each configuration of a mobile device and a network constituting a mobile communication system according to the present invention, and a location registration area. It is a block diagram which shows the internal structure of a moving apparatus. It is a block diagram which shows the internal structure of a mobile switching device. It is a figure which shows the signal content regarding the expansion and cancellation | release of the location registration area transmitted / received between a mobile device and a network (mobile exchange). It is a figure which shows the data regarding the location registration area stored in the subscriber information storage part of a mobile switch. It is a figure which shows the internal structure of the position registration area memory | storage part provided in a moving apparatus. It is a flowchart explaining operation | movement of the mobile switching device at the time of position registration area expansion. It is a flowchart explaining the operation | movement of the mobile switching device at the time of position registration area expansion cancellation | release. It is a sequence diagram which shows the expansion procedure of a location registration area. It is a sequence diagram which shows the procedure which further expands a position registration area. It is a sequence diagram which shows the extension cancellation | release procedure of a location registration area. It is a sequence diagram for demonstrating an example of the position registration procedure of the conventional mobile apparatus.

Claims (16)

In a mobile communication system comprising a mobile station that makes an area information update request in response to a change in reception area information, and a base station that broadcasts area information,
The base station
A transmission unit for transmitting to the mobile station area list information that may include a plurality of area information having a registration completion position registration area and an extended registration completion position registration area ;
The mobile station
A receiving unit for receiving the area list information;
Even if the reception area information changes, if the changed reception area information is included in the extended registration completion position registration area of the area list information , a control unit that regulates the update request;
With
A mobile communication system. In an area update method in a mobile communication system comprising a mobile station that makes an area information update request in response to a change in reception area information and a base station that broadcasts area information,
The base station transmits, to the mobile station, area list information that can include a plurality of area information having a registration completion location registration area and an extended registration completion location registration area ,
The mobile station receives the area list information and, even if the reception area information changes, if the changed reception area information is included in the extended registration completion position registration area of the area list information, the update request To regulate the
An area updating method in a mobile communication system. In a mobile station that makes an area information update request in response to changes in reception area information,
A receiving unit for receiving area list information that may include a plurality of area information including a registration completion position registration area and an extended registration completion position registration area via a base station;
A storage unit for storing the received area list information;
Even if the reception area information changes, if the changed reception area information is included in the extended registration completion position registration area of the area list information stored in the storage unit, a control unit that regulates the update request;
A mobile station characterized by comprising: A mobile station that makes an area information update request in response to a change in reception area information, a base station that broadcasts area information, and a storage device that stores area information about the mobile station in response to the update request In the storage device in the mobile communication system,
Even if the reception area information changes, the changed reception area information is included in the extended registration completion position registration area of the area list information that may include a plurality of area information having a registration completion position registration area and an extended registration completion position registration area . A storage unit that stores area list information transmitted to the mobile station that regulates the update request in association with the mobile station,
When there is an incoming call to the mobile station, paging is executed according to the area list information stored in the storage unit.
A storage device in a mobile communication system. A mobile station that makes an area information update request in response to changes in reception area information, a base station that broadcasts area information, and area information that is referred to when paging is performed when an incoming call is received by the mobile station In a mobile communication system comprising a storage unit that stores data corresponding to the mobile station,
The base station includes a transmission unit that transmits area list information that may include a plurality of area information including a registration completion position registration area and an extended registration completion position registration area to the mobile station,
The mobile station
A receiving unit for receiving the area list information;
When performing the update request, a transmission unit for transmitting including area information including a registration completion position registration area and an extended registration completion position registration area included in the area list information;
With
A mobile communication system. A mobile station that makes an area information update request in response to changes in reception area information, a base station that broadcasts area information, and area information that is referred to when paging is performed when an incoming call is received by the mobile station In an area update method in a mobile communication system, comprising: a storage unit that stores data corresponding to the mobile station;
The base station transmits, to the mobile station, area list information that can include a plurality of area information having a registration completion location registration area and an extended registration completion location registration area ,
When the mobile station receives the area list information and makes the update request, it transmits including the area information including the registration completion position registration area and the extended registration completion position registration area included in the area list information.
An area updating method in a mobile communication system. A mobile station that makes an area information update request in response to changes in reception area information and area information that is referred to when paging is performed when the mobile station receives an incoming call is stored in association with the mobile station. In the mobile station used in a mobile communication system provided with a storage unit
A receiving unit for receiving from the base station area list information that may include a plurality of area information having a registration completion position registration area and an extended registration completion position registration area ;
When performing the update request, a transmission unit for transmitting including area information including a registration completion position registration area and an extended registration completion position registration area included in the area list information;
A mobile station used in a mobile communication system comprising: In a mobile communication system comprising a mobile station that makes an area information update request in response to a change in reception area information, and a base station that broadcasts area information,
The base station includes a transmission unit that transmits area list information that may include a plurality of area information including a registration completion position registration area and an extended registration completion position registration area to the mobile station,
The mobile station
A receiving unit for receiving the area list information;
The update request is made based on the received area list information, and when the receiving unit receives area list information having a new registration completion position registration area and an extended registration completion position registration area , the already received area list information A control unit for disabling
With
A mobile communication system. In an area update method in a mobile communication system comprising a mobile station that makes an area information update request in response to a change in reception area information and a base station that broadcasts area information,
The base station transmits, to the mobile station, area list information that can include a plurality of area information having a registration completion location registration area and an extended registration completion location registration area ,
The mobile station receives the area list information, makes the update request based on the received area list information, and receives area list information having a new registration completion position registration area and an extended registration completion position registration area. Then invalidate the already received area list information,
An area updating method in a mobile communication system. In a mobile station that makes an area information update request in response to changes in area information,
A receiving unit for receiving area list information that may include a plurality of area information including a registration completion position registration area and an extended registration completion position registration area via a base station;
A storage unit for storing the received area list information;
The update request is made based on the received area list information, and when the receiving unit receives area list information having a new registration completion position registration area and an extended registration completion position registration area , the already received area list information A control unit for disabling
A mobile station characterized by comprising: In a mobile communication system comprising a mobile station that makes an area information update request in response to a change in reception area information, and a base station that broadcasts area information,
The base station includes a transmission unit that transmits area list information that may include a plurality of area information including a registration completion position registration area and an extended registration completion position registration area to the mobile station,
The mobile station
A receiving unit for receiving the area list information;
The update request is made based on the received area list information, and when the receiving unit receives a predetermined message, the control unit invalidates the already received area list information;
With
A mobile communication system. In an area update method in a mobile communication system comprising a mobile station that makes an area information update request in response to a change in reception area information and a base station that broadcasts area information,
The base station transmits, to the mobile station, area list information that can include a plurality of area information having a registration completion location registration area and an extended registration completion location registration area ,
The mobile station receives the area list information, makes the update request based on the received area list information, and invalidates the already received area list information when receiving a predetermined message.
An area updating method in a mobile communication system. In the mobile station used in a mobile communication system including a mobile station that makes an area information update request according to a change in reception area information and a base station that broadcasts area information,
A receiving unit for receiving from the base station area list information that may include a plurality of area information having a registration completion position registration area and an extended registration completion position registration area ;
The update request is made based on the received area list information, and when the receiving unit receives a predetermined message, the control unit invalidates the already received area list information;
With
A mobile station used in a mobile communication system. A mobile station that makes an area information update request in response to a change in reception area information, a base station that broadcasts area information, and area information that is referred to in paging processing executed in response to an incoming call to the mobile station. In a mobile communication system comprising a storage unit that stores information corresponding to a station,
When area list information that can include a plurality of area information having a registration completion position registration area and an extended registration completion position registration area is stored in the storage unit, the area information included in the area list information is notified. A transmission unit that transmits signals for paging from a plurality of base stations that broadcast different area information,
The mobile station includes a receiving unit that receives a signal for performing the paging from any one of the plurality of base stations.
A mobile communication system. A mobile station that makes an area information update request in response to a change in reception area information, a base station that broadcasts area information, and area information that is referred to in paging processing executed in response to an incoming call to the mobile station. In a calling method in a mobile communication system including a storage unit that stores information corresponding to a station,
When area list information that can include a plurality of area information having a registration completion position registration area and an extended registration completion position registration area is stored in the storage unit, the area information included in the area list information is notified. Transmit signals for paging from multiple base stations that broadcast different area information,
The mobile station receives a signal for performing the paging from any one of the plurality of base stations,
A calling method in a mobile communication system. A mobile station that makes an area information update request in response to a change in reception area information, a base station that broadcasts area information, and area information that is referred to in paging processing executed in response to an incoming call to the mobile station. In a mobile station used in a mobile communication system provided with a storage unit that stores data corresponding to the station,
When area list information that can include a plurality of area information having a registration completion position registration area and an extended registration completion position registration area is stored in the storage unit, the area information included in the area list information is notified. A receiving unit that receives a signal for paging from any of a plurality of base stations that broadcast different area information;
A transmission unit that transmits a response signal corresponding to paging in response to reception of a signal for paging in the reception unit;
A mobile station used in a mobile communication system comprising:

Images