JP6402722B2 - Distribution system, distribution server, mobile communication device, information distribution method and program - Google Patents

Description

  The present invention relates to a distribution system, a distribution server, a mobile communication device, an information distribution method, and a program. For example, the present invention relates to a distribution system, a distribution server, a mobile communication device, an information distribution method, and a program for broadcasting data.

  In general, Cell Broadcast Service (CBS) is used to quickly distribute disaster information and the like via a communication network. CBS is a service that distributes information transmitted from an information distribution source device in units of cells managed by a base station. That is, by using CBS, the same information can be transmitted to all communication terminals located in the cell. Thereby, all the communication terminals located in the cell can receive the same information via the base station. The network configuration of the CBS and the operation of each device configuring the CBS are disclosed in Non-Patent Document 1, for example.

  In general, there is a service for distributing information using WiFi. The WiFi access point can transmit information to individual communication terminals or all communication terminals within the communication range of the access point. In particular, when information is transmitted to all communication terminals, all communication terminals within the WiFi access point communication area can receive the same information.

  In recent years, it has been studied to use CBS, which has been used for distribution of disaster information, for commercial use such as advertisement distribution. As commercial use, for example, services for regularly distributing road traffic information to highway users are being studied. An expressway user is, for example, a person who holds a communication device and is on a vehicle.

  In addition, in information distribution using a WiFi access point, distribution of coupon information in stores or in stores is performed as an actual service.

3GPP TS 23.041 V12.2.0 (2013-06) 3rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Technical realization of Cell Broadcast Service (CBS) (Release 12)

  However, when information is regularly distributed using CBS or WiFi, there are the following problems. A service provider that regularly distributes information does not change the information to be distributed in order to distribute the information without omission even when a new communication device that receives the information moves into the service providing area. Distribute information regularly even in cases. In this case, since the communication apparatus that already exists in the service providing area receives the same information a plurality of times, there is a problem that the received power accompanying the reception process is wasted.

  An object of the present invention is to provide a distribution system, a distribution server, a mobile communication device, an information distribution method, and a program that can reduce wasteful power consumption in a communication device in order to solve the above-described problems. .

  A distribution system according to a first aspect of the present invention includes a distribution server that determines information distributed in a distribution service area, and a mobile communication device that receives information distributed from the distribution server, the distribution service area When the mobile communication device moves from outside the delivery service area into the delivery service area, the mobile communication device has an entrance area that serves as an entrance into the delivery service area and an internal area that is different from the entrance area. The distribution server reduces the frequency of distributing information to the mobile communication device located in the internal area rather than the frequency of distributing information to the mobile communication device located in the entrance area. The information is distributed to the mobile communication device located at.

  A distribution server according to a second aspect of the present invention includes: a transmission information determination unit that determines information to be distributed to a mobile communication device located in a distribution service area; and the distribution service area, wherein the mobile communication device includes the distribution service. When moving from outside the area into the delivery service area, the mobile communication has an entrance area that serves as an entrance into the delivery service area and an internal area that is different from the entrance area, and is located in the entrance area A periodic transmission processing unit for distributing information to a device, and a suppression transmission processing unit for distributing information to the mobile communication device located in the internal area at a frequency less than the frequency of distributing information to the entrance area. It is.

  The mobile communication device according to the third aspect of the present invention provides mobile communication that is located in an entrance area that serves as an entrance to the distribution service area when the mobile communication device moves from outside the distribution service area into the distribution service area. Distributes information to mobile communication devices located in the distribution service area by reducing the frequency of distributing information to mobile communication devices located in an internal area different from the entrance area rather than the frequency of distributing information to devices. A communication unit that receives information distributed from the distribution server.

An information distribution method according to a fourth aspect of the present invention defines information to be distributed to a mobile communication device located in a distribution service area, and the distribution service area is configured so that the mobile communication device is connected to the mobile communication device from outside the distribution service area. When moving into the distribution service area, it has an entrance area that becomes an entrance into the distribution service area, and an internal area different from the entrance area,
Information is distributed to the mobile communication device located in the entrance area, and information is delivered to the mobile communication device located in the internal area at a frequency less than the frequency of delivering information to the entrance area.

  A program according to a fifth aspect of the present invention defines information to be distributed to a mobile communication device located in a distribution service area, and the distribution service area is configured so that the mobile communication device can transmit the distribution service from outside the distribution service area. When moving into the area, it has an entrance area as an entrance into the distribution service area and an internal area different from the entrance area, and distributes information to the mobile communication device located in the entrance area. , Causing the computer to execute distribution of information to the mobile communication device located in the internal area at a frequency less than the frequency of distributing information to the entrance area.

  According to the present invention, it is possible to provide a distribution system, a distribution server, a mobile communication device, an information distribution method, and a program that can reduce wasteful power consumption in a communication device.

1 is a configuration diagram of a distribution system according to a first exemplary embodiment. It is a block diagram of the delivery system concerning Embodiment 2. FIG. It is a block diagram of the delivery server concerning Embodiment 2. FIG. It is a figure which shows the flow of a delivery process of the delivery data to the entrance area concerning Embodiment 2. FIG. It is a figure which shows the flow of a delivery process of the delivery data to the internal area concerning Embodiment 2. FIG. It is a figure which shows the flow of a delivery process of the delivery data to the internal area concerning Embodiment 2. FIG. It is a block diagram of UE concerning Embodiment 3. FIG. It is a figure which shows the flow of the storage process of the delivery data in UE concerning Embodiment 3. FIG. It is a figure which shows the flow of the reception process of the delivery data in UE concerning Embodiment 3. FIG. It is a figure which shows the flow of the delivery process of the delivery data in the delivery server concerning Embodiment 4. FIG. It is a figure explaining the service outline | summary at the time of delivering the delivery data concerning Embodiment 5. FIG. It is a figure explaining the service outline | summary at the time of delivering the delivery data concerning Embodiment 5. FIG. It is a figure explaining the service outline | summary at the time of delivering the delivery data concerning Embodiment 5. FIG. It is a figure explaining the structure of the area concerning Embodiment 6. FIG. FIG. 20 is a diagram for explaining a flow of processing for calculating an interval for distributing distribution data to a sub-area in a transmission information determining unit according to the sixth embodiment;

(Embodiment 1)
Embodiments of the present invention will be described below with reference to the drawings. A configuration example of the distribution system according to the first exemplary embodiment of the present invention will be described with reference to FIG. The distribution system in FIG. 1 includes a distribution server 10 and a mobile communication device 20. The distribution service area 30 is an area where the distribution server 10 distributes information. The distribution service area 30 has an entrance area 31 and an internal area 32. The entrance area 31 is an area that becomes an entrance of the distribution service area 30 when the mobile communication device 20 moves from outside the distribution service area 30 into the distribution service area 30. The internal area 32 is an area different from the entrance area 31. That is, the mobile communication device 20 moves to the internal area 32 via the entrance area 31.

  The distribution server 10 determines information to be distributed into the distribution service area 30. The information to be distributed may be, for example, character information, image information or moving image information, binary information, or the like. The distribution server 10 is a computer device that executes various processes by, for example, a CPU executing a program stored in a memory.

  The mobile communication device 20 receives information distributed from the distribution server 10 when moving into the distribution service area 30. The mobile communication device 20 is a computer device such as a personal computer (notebook PC), a mobile phone terminal, a smart phone terminal, or a tablet communication terminal equipped with a communication module capable of wide-area wireless communication such as 3G communication or a WiFi module. There may be. Alternatively, the mobile communication device 20 may be a communication device mounted on a vehicle. Alternatively, the mobile communication device 20 may be an M2M (Machine to Machine) terminal that autonomously communicates with other communication devices or server devices without user operation.

  The distribution server 10 reduces the frequency of distributing information to the mobile communication device 20 located in the internal area 32 rather than the frequency of distributing information to the mobile communication device 20 located in the entrance area 31. The information is distributed to the mobile communication device 20 located at.

  For example, the distribution server 10 may periodically distribute information to a mobile communication device located in the entrance area 31. The information that is regularly distributed may be, for example, the same information or different information. The different information may be, for example, information obtained by updating previously delivered information. An interval at which the distribution server 10 distributes information may be determined, and the distribution server 10 may receive information on a distribution interval determined by another server device or the like from another server device or the like.

  Further, the distribution server 10 may distribute information to the mobile communication device located in the internal area 32 at an interval larger than the interval at which information is distributed to the entrance area 31. Alternatively, the distribution server 10 does not regularly distribute information to the internal area 32, but the number of times of distributing information to the internal area 32 is smaller than the number of times of distributing information to the entrance area 31. Information may be distributed to the area 32. At this time, the distribution server 10 may periodically distribute information to the internal area 32, or may distribute information at an arbitrary timing.

  In the distribution service area 30, an area 31 with a high distribution density of the mobile communication terminals 20 may be the entrance area 31, and an area 32 with a low distribution density of the mobile communication terminals 20 may be the internal area 32. In this case, when the mobile communication terminal 20 moves in the distribution service area 30, the information may be periodically distributed in the entrance area 31 that is an area having a large distribution density. Further, in the internal area 32 that is an area having a small distribution density, the information may be distributed at an interval larger than the interval at which the information is distributed to the entrance area 31. Alternatively, the distribution server 10 does not regularly distribute information to the internal area 32 that is an area having a small distribution density, but the number of times that information is distributed to the internal area 32 is greater than the number of times that information is distributed to the entrance area 31. Information may be distributed to the internal area 32 so as to reduce the amount of the information. At this time, the distribution server 10 may periodically distribute information to the internal area 32, or may distribute information at an arbitrary timing.

  As described above, in the distribution system of this figure, the distribution server 10 distributes information to the internal area 32 in the distribution service area 30 rather than the frequency at which the distribution server 10 distributes information to the entrance area 31 in the distribution service area 30. The frequency of performing can be reduced. In other words, the distribution service area 30 can change the frequency of distributing information according to the position of the area arranged in the distribution service area 30.

  As a result, when the mobile communication device 20 moves to the entrance area 31 in the distribution service area 30, the mobile communication device 20 can reliably receive the information distributed from the distribution server 10 because the information is received many times. Thereafter, when the mobile communication device 20 moves to the internal area 32, the mobile communication device 20 has already received the information distributed in the entrance area 31, so there is no problem even if the number of times of receiving the information is reduced. For example, the mobile communication device 20 receives information distributed from the distribution server 10 in the internal area 32 only when information different from the information already received when moving in the entrance area 31 is distributed. Also good. Thus, when the mobile communication device 20 moves to the internal area 32, it can reduce power consumption when receiving the distributed information. Further, by using the distribution system of this figure, it is possible to solve the problem that the radio wave channel utilization efficiency and the radio wave band utilization efficiency deteriorate due to the same information being transmitted a plurality of times. This also improves the efficiency of using radio waves.

(Embodiment 2)
Next, a configuration example of the distribution system according to the second exemplary embodiment of the present invention will be described with reference to FIG. FIG. 2 shows a distribution system that distributes information using CBS (Cell Broadcast Service) defined in 3GPP (3rd Generation Partnership Project). CBS is a system that distributes information in units of cells formed by base stations. The distribution system of this figure includes a distribution server 10, a CBC (Cell Broadcast Center) 40, an MME (Mobility Management Entity) 50, an eNB (evolved Node B) 61, an eNB 62, and a UE (User Equipment) 80.

  The distribution server 10 is the same as the distribution server 10 in FIG. The distribution service area 30 is the same as the distribution service area 30 in FIG. The UE 80 corresponds to the mobile communication device 20 of FIG.

  The eNB 61 and the eNB 62 are base stations that support LTE (Long Term Evolution) defined in 3GPP. The eNB 61 defines the cell 71 as a communicable range. The eNB 61 can communicate with the UE 80 located in the cell 71. Further, the eNB 62 defines the cell 72 as a communicable range. The eNB 62 can communicate with the UE 80 located in the cell 72. The eNB 61 and the eNB 62 simultaneously deliver data to a plurality of UEs 80 located in subordinate cells in the CBS.

  Here, the cell 71 formed by each eNB 61 includes each entrance area 31, and the cell 72 formed by each eNB 62 includes each internal area 32. In other words, in providing the service, the eNB 61 and the eNB 62 having cells that cover the distribution service area are used. Note that the cell 71 formed by the eNB 61 may be referred to as an entrance cell, and the cell 72 formed by the eNB 62 may be referred to as an internal cell.

  Further, unlike the above, an eNB 61 and an eNB 62 may be used in which the cell 71 formed by the eNB 61 is included in the entrance area 31 and the cell 72 formed by the eNB 62 is included in the internal area 32. At this time, when a cell is selected so as to cover the distribution service area in providing the service, for example, the internal area 32 may be covered by a plurality of cells 72. Further, depending on the service provision contents, only representative cells in the area may be used without covering the distribution service area. In any case, the cell 71 formed by the eNB 61 may be referred to as an entrance cell, and the cell 72 formed by the eNB 62 may be referred to as an internal cell.

  The MME 50 specifies the eNB that distributes the distribution data transmitted from the CBC 40. The distribution data is information that the distribution server 10 distributes to the distribution service area 30. The MME 50 distributes distribution data to the identified eNB.

  The CBC 40 is a device used when performing cell broadcast. Specifically, the CBC 40 determines a cell for distributing the distribution data transmitted from the distribution server 10. For example, the distribution server 10 transmits to the CBC 40 distribution data distributed to the distribution service area 30 and information related to the distribution service area 30 that distributes the distribution data. When the CBC 40 receives information on the distribution service area 30, the CBC 40 specifies a cell corresponding to the distribution area 30 designated in the distribution server 10. The CBC 40 may store the information related to the memory or the like by associating the information related to the area designated from the distribution server 10 with the information related to the cell corresponding to the area.

  The distribution server 10 periodically transmits distribution data to be distributed to the UE 80 located in the entrance area 31 to the CBC 40. Further, the distribution server 10 transmits distribution data distributed to the UE 80 located in the internal area 32 to the CBC 40 at an interval longer than the interval distributed to the UE 80 located in the entrance area 31.

  Further, the distribution server 10 may notify the CBC 40 in advance (or at the time of distribution data distribution request) the regular distribution interval or distribution timing and trigger of distribution data in the entrance area 31 and the internal area 32. In this case, when the distribution data is generated, the distribution server 10 includes the area to be transmitted (whether the entrance area 31 or the internal area 32) and, if necessary, the periodic distribution interval of the distribution data or the distribution timing / trigger. Notify the delivery data. The CBC 40 performs actual distribution at the regular distribution interval or distribution timing / trigger in the corresponding distribution area that has been acquired.

  As described above, when the distribution server 10 distributes the distribution data, the distribution server 10 can control the interval at which the distribution data is distributed for each cell formed by the eNB by using the CBS. Specifically, the distribution server 10 distributes the distribution data to the UE 80 located in the cell 72 corresponding to the internal area 32, and distributes the distribution data to the UE 80 located in the cell 72 corresponding to the internal area 32. Shorter than. That is, the distribution server 10 increases the frequency of distributing distribution data to the UE 80 located in the cell 71 more than the frequency of distributing distribution data to the UE 80 located in the cell 72.

  When the UE 80 moves into the distribution service area 30, the UE 80 first receives distribution data at a high frequency in the cell 71. Thereafter, when the UE 80 moves to the cell 72, the UE 80 receives the distribution data at a frequency lower than the frequency at which the distribution data was received in the cell 71. In this way, the UE 80 reduces the power consumption associated with the reception processing of the distribution data, because the reception frequency in the cell 72 corresponding to the internal area 32 is lower than the reception frequency in the cell 71 corresponding to the entrance area 31. be able to.

  In addition, although the structure of the delivery system using CBS defined in 3GPP was shown in FIG. 2, when using the delivery system by WiFi, eNB 61 and eNB 62 in FIG. 2 can be replaced with a WiFi access point. The cell 71 and the cell 72 can be replaced with a communication area of a WiFi access point. In addition, the UE 80 can be replaced with a WiFi terminal. Furthermore, the CBC 40 and MME 50 in FIG. 2 are replaced with or unnecessary for devices for realizing TCP / IP communication (for example, routers, switches, firewalls, DHCP servers, DNS servers, VPN servers, other servers, etc.). It is possible to use a simple device.

  Subsequently, a configuration example of the distribution server 10 according to the second exemplary embodiment of the present invention will be described with reference to FIG. The distribution server 10 includes a transmission information determination unit 11, a regular transmission processing unit 12, and a suppression transmission processing unit 13. The transmission information determination unit 11, the regular transmission processing unit 12, and the suppression transmission processing unit 13 may execute each process by executing a program stored in a memory or the like.

  The transmission information determination unit 11 generates distribution data distributed in the CBS. Or the transmission information determination part 11 may acquire the delivery data produced | generated in the other server apparatus etc., and may determine the obtained delivery data as the delivery data delivered in CBS. The transmission information determination unit 11 outputs the distribution data to the regular transmission processing unit 12 and the suppression transmission processing unit 13. Further, the transmission information determination unit 11 outputs information regarding the entrance area 31 to the regular transmission processing unit 12 and outputs information regarding the internal area 32 to the suppression transmission processing unit 13. The information regarding the entrance area 31 may be, for example, the area name of the entrance area 31. Similarly, the information regarding the internal area 32 may be, for example, a regional name of the internal area 32.

  Furthermore, the transmission information determination unit 11 may determine a regular transmission interval, which is an interval for distributing distribution data to the entrance area 31, and output information regarding the determined regular transmission interval to the regular transmission processing unit 12. Further, the transmission information determination unit 11 may output information related to the timing of distributing the distribution data to the internal area 32 to the suppression transmission processing unit 13.

  The timing at which the distribution data is distributed to the internal area 32 may be, for example, the timing at which the distribution data generated or determined by the transmission information determination unit 11 is updated. Alternatively, the timing for distributing the distribution data to the internal area 32 may be a regular transmission interval that is longer than the regular transmission interval for distributing to the entrance area 31. In addition, the timing for distributing the distribution data to the internal area 32 may be determined as an arbitrary timing.

  The regular transmission processing unit 12 receives the distribution data output from the transmission information determination unit 11, the information regarding the entrance area 31, and the information regarding the regular transmission interval. The regular transmission processing unit 12 transmits the distribution data to the CBC 40 at a timing corresponding to the regular transmission interval. At this time, the periodic transmission processing unit 12 transmits the information regarding the entrance area 31 together with the distribution data to the CBC 40. The regular transmission processing unit 12 may obtain information regarding the regular transmission interval from other than the transmission information determination unit 11, for example, from prior setting information or another functional unit.

  The suppression transmission processing unit 13 receives the distribution data output from the transmission information determination unit 11, the information regarding the internal area 32, and the information regarding the timing for distributing the distribution data. The suppression transmission processing unit 13 transmits the distribution data to the CBC 40 at a timing corresponding to the timing at which the distribution data is distributed. At this time, the suppression transmission processing unit 13 also transmits information regarding the internal area 32 together with the distribution data to the CBC 40. It should be noted that the suppression transmission processing unit 13 may obtain information related to the timing of distributing the distribution data from other than the transmission information determination unit 11, for example, from prior setting information or another function unit.

  In addition, the CBC 40 may be provided with either or both of the periodic transmission processing unit 12 and the suppression transmission processing unit 13. In this case, the periodic transmission processing unit 12 and the suppression transmission processing unit 13 included in the CBC 40 are the distribution data output from the transmission information determination unit 11 of the distribution server 10, the information about the entrance area 31 or the information about the internal area 32, and the periodic transmission. Information regarding the interval or information regarding the timing of distributing the distribution data is received, and the distribution data is output to the MME 50 at the designated timing. Even in this case, the regular transmission processing unit 12 and the suppression transmission processing unit 13 may obtain information related to the regular transmission interval or information related to the timing for distributing the distribution data from other than the transmission information determining unit 11.

  Next, the flow of distribution processing of distribution data to the entrance area 31 according to the second exemplary embodiment of the present invention will be described with reference to FIG. First, the transmission information determination unit 11 determines distribution data (S11). The transmission information determination unit 11 outputs the distribution data to the regular transmission processing unit 12. Next, the regular transmission processing unit 12 determines whether or not the timing corresponds to the regular transmission interval (S12). When it is determined that the timing corresponds to the regular transmission interval, the regular transmission processing unit 12 distributes the distribution data output from the transmission information determination unit 11 to the entrance area 31 (S13). If the regular transmission processing unit 12 determines that the timing does not correspond to the regular transmission interval, the regular transmission processing unit 12 repeats the process of step S12. Here, the regular transmission processing unit 12 may store the distribution data output from the transmission information determination unit 11 in a memory or the like until a timing corresponding to the regular transmission interval.

  Next, the flow of distribution processing of distribution data to the internal area 32 according to the second exemplary embodiment of the present invention will be described using FIG. First, the transmission information determination unit 11 determines distribution data (S21). The transmission information determination unit 11 outputs the distribution data to the suppression transmission processing unit 13. Next, the suppression transmission processing unit 13 determines whether or not it is time to distribute the distribution data to the internal area 32 (S22). When it is determined that it is time to distribute the distribution data to the internal area 32, the suppression transmission processing unit 13 distributes the distribution data output from the transmission information determination unit 11 to the internal area 32 (S23). When the suppression transmission processing unit 13 determines that it is not time to distribute the distribution data to the internal area 32, the suppression transmission processing unit 13 repeats the process of step S22. Here, the suppression transmission processing unit 13 may store the distribution data output from the transmission information determination unit 11 in a memory or the like until it is time to distribute the distribution data to the internal area 32.

  Next, with reference to FIG. 6, a distribution process flow different from that in FIG. 5 will be described regarding the distribution process of distribution data to the internal area 32 according to the second embodiment of the present invention. First, the transmission information determination unit 11 determines distribution data (S31). The transmission information determination unit 11 outputs the distribution data to the suppression transmission processing unit 13. Next, the suppression transmission processing unit 13 determines whether or not the distribution data output from the transmission information determination unit 11 is different from the distribution data distributed to the internal area 32 last time (S32). The suppression transmission processing unit 13 is different in the distribution data output from the transmission information determination unit 11 from the distribution data distributed to the internal area 32 last time, that is, the distribution data output from the transmission information determination unit 11 was distributed last time. When the distribution data is changed, the distribution data output from the transmission information determination unit 11 is distributed to the internal area 32 (S23). When the distribution data output from the transmission information determination unit 11 is the same as the data distributed to the internal area 32 last time, the suppression transmission processing unit 13 discards the distribution data output from the transmission information determination unit 11 (S34).

  As described above, by using the distribution system according to the second embodiment of the present invention, the distribution server 10 corresponds to the cell 71 corresponding to the entrance area of the distribution service area 30 and the internal area using the CBS. Distribution data can be distributed to the cell 72. At this time, when the distribution server 10 distributes the distribution data to the cell 71 and the cell 72, the distribution server 10 can change the distribution frequency and distribute the distribution data. Specifically, the distribution server 10 periodically distributes distribution data to the UE 80 located in the cell 71, and an interval longer than the interval to distribute to the cell 71 to the UE 80 located in the cell 72, or the cell 71. The distribution data can be distributed at a frequency lower than the frequency of distribution to. Since the UE 80 that has moved to the cell 72 receives the distribution data at an interval longer than the interval at which the distribution data was received at the cell 71, the power consumption associated with the distribution data reception process is reduced at the cell 72. be able to. Further, by using the distribution system of this figure, it is possible to solve the problem that the radio wave channel utilization efficiency and the radio wave band utilization efficiency deteriorate due to the same information being transmitted a plurality of times. As a result, the radio wave utilization efficiency can be improved.

  Further, effects in the distribution server 10 will be described. For example, it is assumed that the distribution server 10 is charged by a communication carrier that manages the CBS according to the amount of distribution data transmitted via the CBS. In such a case, the distribution server 10 distributes the distribution data to the internal area 32 in the distribution service area 30 as compared to the case where the distribution data is regularly distributed to all areas in the distribution service area 30. The amount of distribution data can be reduced by lowering. As a result, the distribution server 10 can reduce the distribution cost as compared to a case where distribution data is regularly distributed to all areas in the distribution service area 30.

(Embodiment 3)
Then, the structural example of UE80 concerning Embodiment 3 of this invention is demonstrated using FIG. In the present embodiment, when the UE 80 is located in the internal area 32, the frequency of receiving the distribution data is less than when the UE 80 is located in the entrance area 31, but for example, the UE 80 periodically receives information on the distribution data. It is assumed that it is displayed. Based on such a premise, the distribution server 10 can reduce the frequency of distribution in the internal area 32, so that the distribution cost can be suppressed. Even when the UE 80 moves to the internal area 32, the user holding the UE 80 can periodically check the data by displaying the distribution data at the same frequency as the entrance area 31. In addition, displaying information related to distribution data is intended to include processing other than displaying distribution data. For example, in addition to displaying the distribution data, the UE 80 may perform audio reproduction when the distribution data is audio data, and may perform video reproduction when the distribution data is video data.

  7 includes a reception information processing unit 81, a reception information storage processing unit 82, a reception information storage DB 83, and a non-periodic reception information processing unit 84. The reception information processing unit 81 receives distribution data distributed from the distribution server 10 via the CBS. Further, the reception information processing unit 81 performs reception processing on the received distribution data. The reception processing may be, for example, system control such as sound reproduction, image display, vibration notification, light emission notification, or setting change in the UE 80. The reception information processing unit 81 outputs the received distribution data to the reception information storage processing unit 82.

  The reception information storage processing unit 82 stores the distribution data output from the reception information processing unit 81 in the reception information storage DB 83. The reception information storage processing unit 82 may store only the latest distribution data received by the reception information processing unit 81 in the reception information storage DB 83 or may store the past several distribution data in the reception information storage DB 83. . Further, the reception information storage processing unit 82 may store the distribution data in which the priority flag or the like is set in the reception information storage DB 83 in preference to the distribution data in which the priority flag or the like is not set.

  The reception information storage DB 83 stores the distribution data output from the reception information storage processing unit 82. The reception information storage DB 83 stores distribution data according to the control of the reception information storage processing unit 82. For example, the reception information storage DB 83 may store only the latest distribution data when instructed by the reception information storage processing unit 82 to store only the latest distribution data. Alternatively, the reception information storage DB 83 may store the distribution data for the past several times when instructed to store the distribution data output from the reception information storage processing unit 82 for the past several times. The reception information storage DB 83 may be provided in a memory or the like in the UE 80, or may be provided in a storage medium or the like connected to the outside of the UE 80.

  When the UE 80 is located in the internal area 32 and periodically displays distribution data, the non-periodic reception information processing unit 84 acquires distribution data stored in the reception information storage DB 83 at a predetermined timing. To do. Further, the reception information storage DB 83 performs reception processing on the acquired distribution data. The reception processing may be, for example, system control such as sound reproduction, image display, vibration notification, light emission notification, or setting change in the UE 80.

  The non-periodic reception information processing unit 84 may be notified from the distribution server 10 via the reception information processing unit 81 of the timing for regularly displaying distribution data in the internal area 32. That is, the distribution server 10 may distribute information related to the timing for displaying the distribution data periodically in the internal area 32 together with the distribution data. Or the information processing part 84 at the time of non-periodic reception may determine the timing which displays distribution data regularly in the internal area 32 based on the input information in the user who operates UE80. Alternatively, the non-periodic reception information processing unit 84 may determine the timing for periodically displaying distribution data in the internal area 32 based on information set in advance.

  Note that the timing at which the distribution data is displayed in the non-periodic reception information processing unit 84 may be specified as an absolute time, or may be specified as a relative time from the distribution data reception or distribution execution time. Furthermore, the display timing may be specified as periodic information, and when it is periodically specified by absolute time, it is periodically specified by relative time, such as 1 minute interval from 12:00. In such a case, for example, an interval of 1 minute may be specified from when the latest distribution data is received. When the non-periodic reception information processing unit 84 obtains a plurality of display timings, the most recently obtained display timing may be employed, or any one may be employed based on the priority of each display timing. Also good. Also, a plurality of display timings may be adopted based on the acquisition order, priority, and the like.

  Next, the flow of distribution data storage processing in the UE 80 according to the third embodiment of the present invention will be described with reference to FIG. First, the reception information processing unit 81 receives distribution data from the distribution server 10 via the CBS (S41). Next, the reception information processing unit 81 performs, for example, a process of displaying distribution data as a reception process (S42). Next, the reception information storage processing unit 82 stores the distribution data received by the reception information processing unit 81 in the reception information storage DB 83 (S43). Here, in this figure, after the reception information processing unit 81 performs the display processing of the distribution data, the flow in which the reception information storage processing unit 82 stores the distribution data in the reception information storage DB 83 has been described, but step S42 And the order of S43 may be changed. That is, after the reception information storage processing unit 82 stores the distribution data in the reception information storage DB 83, the reception information processing unit 81 may perform distribution data reception processing.

  Next, the flow of the distribution data reception process in the UE 80 according to the third embodiment of the present invention will be described with reference to FIG. Specifically, the flow of reception processing when the UE 80 is located in the internal area 32 will be described. In this figure, a process for displaying data will be described as a specific example of the reception process.

  First, the non-periodic reception time information processing unit 84 receives information related to the timing for displaying data (S51). The information processing unit 84 at the time of non-periodic reception may receive information regarding the timing for displaying data distributed from the distribution server 10, and may receive information regarding the timing for displaying data by an input operation of a user operating the UE 80. May be. Or the information processing part 84 at the time of non-periodic reception may receive the information regarding the timing which displays data from the setting information of the same function.

  Next, the information processing unit 84 at the time of non-periodic reception determines whether or not it is time to display distribution data (S52). If it is determined that it is not the timing to display the distribution data, the non-periodic reception information processing unit 84 repeats the process of step S52 until it is time to display the distribution data. If it is determined that it is time to display distribution data, the non-periodic reception information processing unit 84 extracts data stored in the reception information storage DB 83 (S53). Next, the non-periodic reception information processing unit 84 performs processing for displaying the extracted data (S54).

  Next, the information processing unit 84 at the time of non-periodic reception determines whether or not the UE 80 is located in the internal area 32 (S55). The non-periodic reception time information processing unit 84 may determine whether or not the currently located cell is located in the internal area 32 according to information included in broadcast information distributed from the eNB 61 or the eNB 62, for example. . Alternatively, the non-periodic reception information processing unit 84 may determine that the information is located in the internal area 32 when the distribution data is not received from the distribution server 10 for a certain period or more. In this case, when the UE 80 is actually located in the entrance area 31 but does not receive delivery data from the delivery server 10 for a certain period due to a packet loss or the like, the non-periodic reception information processing unit 84 is located in the internal area 32. Then, it may be determined. When the non-periodic reception information processing unit 84 determines that the UE 80 is located in the internal area 32, the subsequent processing is repeated. When the non-periodic reception time information processing unit 84 determines that the UE 80 is not located in the internal area 32, the information processing unit 84 ends the process.

  As described above, the distribution data distributed in the entrance area 31 can be stored by using the UE 80 according to the third embodiment of the present invention. Therefore, the UE 80 can display the stored distribution data even when the distribution data is not regularly received in the internal area 32. As a result, the user holding the UE 80 can periodically check the data even in the internal area 32. The operation of the UE 80 according to the third embodiment of the present invention is as follows. The distribution server 10 is configured so that the content of the distribution data received in the entrance area 31 is not different from the content of the distribution data received in the internal area 32. This is effective for reducing the number of times distribution data is distributed in the area 32.

(Embodiment 4)
Next, the flow of distribution data distribution processing in the distribution server 10 according to the fourth exemplary embodiment of the present invention will be described with reference to FIG. In FIG. 3, the configuration of the distribution server 10 in which the regular transmission processing unit 12 and the suppression transmission processing unit 13 are different functional blocks has been described. For example, the transmission information determination unit 11 includes the regular transmission processing unit 12 and the suppression transmission processing unit. The process in 13 may be executed. That is, the transmission information determination unit 11 may control the timing for distributing distribution data to the entrance area 31 and the internal area 32. In FIG. 10, a flow of processing when the transmission information determination unit 11 controls the timing of distributing distribution data to the entrance area 31 and the internal area 32 will be described.

  First, the transmission information determination unit 11 determines distribution data (S61). Next, the transmission information determination unit 11 determines whether the transmission timing is any one of transmission to the entrance area 31, transmission to the internal area 32, or transmission to both the entrance area 31 and the internal area 32. (S62). The determination of the transmission timing in step S62 may be made based on whether it corresponds to a regular transmission interval or transmission at an arbitrary time. Here, transmission at an arbitrary time may be performed when it can be determined that the distribution data previously distributed to each area is different from the distribution data determined in step S61 at the present time (that is, when the information is updated or changed). good.

  In step S62, the information processing determination unit 11 proceeds to step S63 if it is determined that any of the transmission timings is applicable, and repeats the process of step S62 if it is determined that any of the transmission timings is not applicable. When the transmission information determining unit 11 determines that any of the transmission timings is satisfied (Yes in step S62), the transmission timing of the distribution data is the transmission to the entrance area 31, the transmission to the internal area 32, or the entrance area 31. And transmission to both of the internal areas 32 are determined (S63).

  If the information processing determining unit 11 determines in step S63 that the transmission timing to the entrance area 31 is satisfied, the process proceeds to step S64. If the information processing determination unit 11 determines that the transmission timing to the internal area 32 is satisfied, the process proceeds to step S65. When it is determined that the transmission timing to both the entrance area 31 and the internal area 32 is satisfied, the process proceeds to step S66.

  If the transmission information determination unit 11 determines that the transmission of the distribution data determined in step S61 corresponds to the transmission timing to the entrance area 31, the transmission information determination unit 11 distributes the distribution data determined in step S61 to the entrance area 31 (S64). If the transmission information determination unit 11 determines that the transmission of the distribution data determined in step S61 corresponds to the transmission timing to the internal area 32, the transmission information determination unit 11 distributes the distribution data determined in step S61 to the internal area 32 (S65). When the information determination unit 11 determines that the transmission of the distribution data determined in step S61 corresponds to the transmission timing to both the entrance area 31 and the internal area 32, the information determination unit 11 sets the distribution data determined in step S61 to the entrance area 31 and the internal area. Deliver to area 32 (S66).

  As described above, by executing the flow of the distribution process of FIG. 10, the transmission information determination unit 11 can also execute the processes executed in the regular transmission processing unit 12 and the suppression transmission processing unit 13. For example, the processing executed by the transmission information determination unit 11 can be realized by one CPU executing using a program stored in a memory or the like.

(Embodiment 5)
Next, a specific service outline when distributing distribution data according to the fifth embodiment of the present invention will be described with reference to FIG. Each hexagonal area in the figure indicates a cell formed by the eNB. A cell indicated by a solid line indicates a cell corresponding to the entrance area 31, and a cell indicated by a broken line indicates a cell corresponding to the internal area 32.

  Each cell is formed on a highway. An area having an IC (Interchange) that is an entrance to the highway is an entrance area 31. Further, the service area (SA) or the parking area (PA) having the smart IC is also set as the entrance area 31. An SA or PA that does not have a smart IC is an internal area 32.

  UE-A, UE-B, UE-C, and UE-D are, for example, vehicles, and arrows indicate the traveling directions.

  The distribution server 10 described in the first to fourth embodiments periodically distributes distribution data to a cell (solid line cell) where an IC or a smart IC exists via a CBS. In addition, the distribution server 10 has an interval longer than an interval for distributing distribution data to a solid line cell via the CBS for any cell other than the cell where the IC or smart IC exists (broken line cell). Distribution data is distributed when there is a change in the interval or distribution data.

  As described above, the distribution server 10 can adjust the distribution interval of distribution data by setting the highway IC or smart IC as the entrance area 31 and the other area as the internal area 32. By dividing the area in this way, a vehicle that has entered the highway via an IC or a smart IC can repeatedly receive distribution data distributed from the distribution server 10 in the entrance area 31. Therefore, the vehicle can acquire information necessary for traveling on the highway, useful information, or the like in the entrance area 31. When the vehicle passes through the entrance area 31 and enters the internal area 32, the vehicle has already acquired necessary information in the entrance area 31, so the interval for receiving the delivery data from the delivery server 10 may be increased. it can.

  Next, a specific service outline when distributing distribution data, which is different from FIG. 11, will be described using FIG. 12. The hexagonal area in this figure shows a cell corresponding to the entrance area 31 and a cell corresponding to the internal area 32, as in FIG.

  Each cell is formed on a track. An area having a station is an entrance area 31. In addition, an area that does not have a station is an internal area 32.

  UE-A, UE-B, and UE-C are mobile phone terminals that are held by a user who is on a train, for example, and an arrow indicates a traveling direction. UE-A, UE-B, and UE-C regularly receive distribution data via the CBS at the station that is the entrance area 31, and distribute data to the solid line cell via the CBS in the internal area 32. The distribution data is distributed when the interval is longer than the interval for distributing the message, an arbitrary interval, or when the distribution data is changed. In addition to the mobile phone terminals held by users who get on and off the station, the delivery server 10 may also periodically deliver the delivery data to mobile phone terminals held by users who pass through the station.

  Next, a specific service outline when distributing distribution data, which is different from FIGS. 11 and 12, will be described using FIG. 13. In FIG. 13, the boundary of the area which a local government manages is shown as the entrance area 31. In FIG. 13, the cell area indicated by a solid line is an area that spans two or more different local governments (area located at the boundary between the local governments), and the cell area indicated by a broken line corresponds to one local government. Area (area that does not include boundaries between local governments). In such a case, the solid line cell located at the boundary of the municipality is defined as the entrance area 31, and the other broken line cell is defined as the internal area 32.

  Each of UE-A, UE-B, UE-C, and UE-D may be a vehicle or a mobile phone terminal. UE-A is a mobile phone terminal or the like that has entered the entrance area 31 located at the boundary, and distribution data is regularly distributed. Moreover, although UE-D is a vehicle etc. which are moving in the entrance area 31, delivery data may be regularly delivered to such vehicles. In addition, since UE-B and UE-C have moved or stopped in the internal area 32, the periodic distribution data equivalent to the entrance area 31 may not be distributed (for example, longer intervals or other arbitrary data). Interval, delivery only when delivery data changes).

  As described above, the services shown in FIGS. 11 to 13 can be realized using the distribution server 10, the entrance area 31, the internal area 32, and the like described in the first to fourth embodiments. The services shown in FIGS. 11 to 13 are merely examples, and other services can be realized using the distribution server 10 described in the first to fourth embodiments.

(Embodiment 6)
Subsequently, a configuration example of an area according to the sixth embodiment of the present invention will be described with reference to FIG. In this figure, as in FIG. 11, cells are formed on the highway. Further, the positions of the entrance area 31 and the internal area 32 are the same as those in FIG. In FIG. 14, subarea A and subarea B are defined. The sub-area A is an area composed only of cells corresponding to the internal area 32. On the other hand, the sub-area B is an area configured using a cell corresponding to the entrance area 31 and a cell corresponding to the internal area 32.

  For example, the transmission information determination unit 11 of the distribution server 10 determines to distribute the distribution data N times to one vehicle in the sub area (N is a positive integer). At this time, the transmission information determination unit 11 calculates the staying time during which UE-A stays in subarea A using the moving speed of UE-A. Further, the transmission information determination unit 11 determines an interval for distributing the distribution data to the vehicle or the like in the sub-area A by dividing the stay time by N. The movement speed of UE-A may be a legal speed on a highway, for example, if it is a highway, or speed information is collected from a plurality of vehicles traveling in subarea A, and a plurality of speed information collected For example, the average speed may be used as the moving speed of UE-A. In addition, the staying time can be calculated by the transmission information determining unit 11 holding information related to the distance that the vehicle moves in the sub-area A in advance, and dividing the moving distance by the moving speed of the UE-A.

  Next, an interval for distributing distribution data to vehicles in the sub-area B will be described. The sub-area B includes an entrance area 31 and distribution data is periodically distributed in cells corresponding to the entrance area 31. Therefore, the transmission information determination unit 11 calculates the number n of distributions (n is a positive integer) in the entrance area 31 in the sub area B. The transmission information determination unit 11 calculates a stay time during which UE-B stays in the entrance area 31 in the sub-area B using the moving speed of the UE-B. Furthermore, the transmission information determination unit 11 divides the stay time in the entrance area 31 by the time indicating the interval at which the delivery data is regularly delivered, thereby distributing the delivery data n to the UE-B traveling in the entrance area 31. Is calculated.

  Here, when N> n, the transmission information determination unit 11 may determine to distribute the Nn (times) distribution data to the internal area 32 in the sub area B. In addition, when n> N, since data distribution is performed n times (n> N) in the entrance area 31 in the sub area B, the N distributions in the sub area B are satisfied in the entrance area 31. In the internal area 32 in the sub area B, the distribution data may not be distributed.

  Next, a flow of processing for calculating an interval for distributing distribution data to a sub-area in the transmission information determination unit 11 will be described with reference to FIG. First, the transmission information determination unit 11 determines the number of distributions N (S71). Next, the transmission information determination unit 11 determines whether or not the entrance area 31 is included in the subarea for distributing the distribution data (S72). The transmission information determination unit 11 sets the entrance area 31 in the subarea for distributing the distribution data. When it is determined that the UE includes, the time for which the UE stays in the entrance area 31 is calculated (S73). Next, the transmission information determination unit 11 determines the number of times distribution data is distributed to the entrance area 31 and the internal area 32 (S74).

  Next, the transmission information determination unit 11 calculates the stay time of the UE in the internal area 32 (S75). Next, the transmission information determination unit 11 distributes distribution data to be distributed to UEs located in the internal area 32 based on the number of distributions determined in step S71 or step S74 and the stay time of the UE in the internal area 32 calculated in step S75. The interval is determined (S76).

  In Step S72, when it is determined that the entrance area 31 is not included in the sub area, the processing after Step S75 is executed.

  As described above, the distribution interval of distribution data in the internal area 32 in the sub area can be determined using the concept of the sub area according to the sixth embodiment of the present invention. In the sixth embodiment, the distribution interval of distribution data to be distributed to the internal area 32 can be determined according to the number of distributions determined by the transmission information determination unit 11. Therefore, it is possible to control the distribution intervals of the distribution data to be different for the internal areas 32 to which the sub-areas to which the sub-area belongs differ. Thus, when the UE moving in the sub-area including the entrance area 31 receives a lot of distribution data in the entrance area 31, it is possible to prevent the UE from acquiring excessive distribution data in the internal area 32. it can.

  In the above-described embodiments, the present invention has been described as a hardware configuration, but the present invention is not limited to this. The present invention can also realize processing in the distribution server 10 by causing a CPU (Central Processing Unit) to execute a computer program.

  In the above example, the program can be stored and supplied to a computer using various types of non-transitory computer readable media. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (for example, flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (for example, magneto-optical disks), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W, semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)) are included. The program may also be supplied to the computer by various types of transitory computer readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves. The temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

  Although the present invention has been described with reference to the exemplary embodiments, the present invention is not limited to the above. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the invention.

  This application claims the priority on the basis of Japanese application Japanese Patent Application No. 2014-005787 for which it applied on January 16, 2014, and takes in those the indications of all here.

DESCRIPTION OF SYMBOLS 10 Distribution server 11 Transmission information determination part 12 Periodic transmission process part 13 Control transmission process part 20 Mobile communication apparatus 30 Distribution service area 31 Entrance area 32 Internal area 40 CBC
50 MME
61 eNB
62 eNB
71 cells 72 cells 80 UE
81 Reception Information Processing Unit 82 Reception Information Storage Processing Unit 83 Reception Information Storage DB
84 Information processing section for non-periodic reception

Claims (25)

A distribution server that determines information to be distributed within the distribution service area;
A mobile communication device that receives information distributed from the distribution server,
The distribution service area has a plurality of distribution areas,
The distribution server
The information is transmitted to the mobile communication device located in the second distribution area included in the plurality of distribution areas , rather than the information is distributed to the mobile communication device located in the first distribution area included in the plurality of distribution areas. A distribution system that distributes information to mobile communication devices located in the distribution service area with a low frequency of distribution.   An entrance area that becomes an entrance into the distribution service area when the mobile communication device moves from outside the distribution service area into the distribution service area is the first distribution area, and the entrance of the distribution service area The distribution system according to claim 1, wherein an internal area different from the area is set as the second distribution area.   The area where the density of the mobile communication device is high in the distribution service area is defined as the first distribution area, and the area where the density of the mobile communication device is low in the distribution service area is defined as the second distribution area. The delivery system according to claim 1 or 2. The distribution server
Frequency less than the frequency of delivering information to the mobile communication device located in the first delivery area at regular intervals and delivering the information to the mobile delivery device located in the second delivery area in the first delivery area. The distribution system according to any one of claims 1 to 3 , wherein the information is distributed by using any one of claims 1 to 3 . The distribution server
The distribution system according to claim 4 , wherein the updated information is distributed when information is distributed to the second distribution area at an interval longer than the regular interval or when information to be distributed is updated. The distribution server
The distribution system according to any one of claims 1 to 5 , wherein information is distributed via a CBS (Cell Broadcast Service). The mobile communication device
Holds the information received in the first distribution area or the second distribution area, when it is determined that located in the second distribution area, and outputs the information to the holding, claims 1 to 6 The distribution system according to any one of the above. The distribution server
The distribution system according to claim 7 , wherein when the mobile communication device is located in the second distribution area, the mobile communication device distributes information related to the timing of outputting the held information to the mobile communication device. The distribution server
For the mobile communication device moving in the sub-area included in the second distribution area, the number of times information is distributed in the sub-area is determined, and the mobile communication device stays in the sub-area. defining the interval to deliver information of number of times specified with the distribution system according to any one of claims 1 to 8. The distribution server
When a part of the sub-area overlaps with the first distribution area, the number of times of distribution to the mobile communication device moving in the sub-area and excluding the overlapping area, The distribution system according to claim 9, wherein the distribution system is defined as a number obtained by subtracting a number of times of distributing information in the overlapping area from a number of times of distributing information within the sub-area. Transmission information determination means for determining information to be distributed to mobile communication devices located in the distribution service area;
The distribution service area has a plurality of distribution areas,
Periodic transmission processing means for distributing information to the mobile communication device located in a first distribution area included in the plurality of distribution areas ;
Suppression transmission processing means for distributing information to the mobile communication device located in the second distribution area included in the plurality of distribution areas at a frequency less than the frequency of distributing information to the first distribution area. Distribution server.   An entrance area that becomes an entrance into the distribution service area when the mobile communication device moves from outside the distribution service area into the distribution service area is the first distribution area, and the entrance of the distribution service area The distribution server according to claim 11, wherein an internal area different from the area is set as the second distribution area.   The area where the density of the mobile communication device is high in the distribution service area is defined as the first distribution area, and the area where the density of the mobile communication device is low in the distribution service area is defined as the second distribution area. The delivery server according to claim 11 or 12. The suppression transmission processing means includes
Distributing the updated information when the or information to be delivered second for delivery information interval longer than the interval to deliver information to the distribution area is updated, any one of claims 11 to 13 The delivery server described in. The periodic transmission processing means and the suppression transmission processing means are:
The distribution server according to any one of claims 11 to 14 , which distributes information via a CBS (Cell Broadcast Service). The transmission information determining means includes
The mobile communication device holds information received in the first distribution area or the second distribution area, and outputs the held information when determining that the mobile communication device is located in the second distribution area. If
When it is determined that the mobile communication device is located at the second distribution area, to determine the timing of outputting the information to the holding, the delivery server according to any one of claims 11 to 15. The transmission information determining means includes
For the mobile communication device moving in the sub-area included in the second distribution area, the number of times information is distributed in the sub-area is determined, and the mobile communication device stays in the sub-area. defining the interval to deliver information of number of times specified with the distribution server according to any one of claims 11 to 16. The transmission information determining means includes
When a part of the sub-area overlaps with the first distribution area, the number of times of distribution to the mobile communication device moving in the sub-area and excluding the overlapping area, 18. The distribution server according to claim 17 , wherein the distribution server is defined as a number obtained by excluding a number of times of distributing information in the overlapping area from a number of times of distributing information within the sub-area. When the mobile communication device moves from outside the distribution service area into the distribution service area, the distribution service area has a plurality of distribution areas and is located in a first distribution area included in the plurality of distribution areas. The frequency of distributing information to mobile communication devices located in a second distribution area included in the plurality of distribution areas is less than the frequency of distributing information to mobile communication devices, and the mobile communication device is located in the distribution service area. A mobile communication device comprising communication means for receiving information distributed from a distribution server that distributes information to the mobile communication device.   An entrance area that becomes an entrance into the distribution service area when the mobile communication device moves from outside the distribution service area into the distribution service area is the first distribution area, and the entrance of the distribution service area The mobile communication device according to claim 19, wherein an internal area different from the area is set as the second distribution area.   The area where the density of the mobile communication device is high in the distribution service area is defined as the first distribution area, and the area where the density of the mobile communication device is low in the distribution service area is defined as the second distribution area. The mobile communication device according to claim 19 or 20. Information holding means for holding information received in the first distribution area or the second distribution area;
The mobile communication device according to any one of claims 19 to 21 , further comprising information processing means for outputting the held information when determining that the mobile phone is located in the second distribution area. The information processing means includes
23. The mobile communication device according to claim 22 , wherein the held information is output according to information related to timing of outputting the held information transmitted from the distribution server. Define information to be distributed to mobile communication devices located in the distribution service area,
The distribution service area has a plurality of distribution areas,
Distributing information to the mobile communication device located in a first distribution area included in the plurality of distribution areas ;
An information delivery method for delivering information at a frequency less than the frequency of delivering information to the first delivery area to the mobile communication device located in a second delivery area included in the plurality of delivery areas . Define information to be distributed to mobile communication devices located in the distribution service area,
The distribution service area has a plurality of distribution areas,
Distributing information to the mobile communication device located in a first distribution area included in the plurality of distribution areas ;
A program for causing a computer to distribute information to the mobile communication device located in a second distribution area included in the plurality of distribution areas at a frequency less than the frequency of distributing information to the first distribution area.

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