JP2015008399A - Information delivery system, communication terminal, delivery device, data receiving method, data delivery method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information delivery system capable of changing reception processing of delivered information according to a mobile characteristic without requiring a communication terminal to have a GPS, various sensors, and functions of a road-to-vehicle ITS system and the like, in order to construct a low-cost system.SOLUTION: An information delivery system according to the invention comprises: a communication terminal 40 that moves from a cell formed by a base station 20 arranged on a mobile communication network to a cell formed by another base station 30 arranged on the mobile communication network; and a delivery device 10 that delivers data to the communication terminal 40. The delivery device 10 transmits an instruction message to instruct the communication terminal 40 to execute reception processing according to a change characteristic of an in-zone cell involved in the inter-cell movement of the communication terminal 40 to the communication terminal 40. When the communication terminal 40 receives the instruction message, it executes reception processing of data on the basis of travel history on the inter-cell movement of the terminal and the change characteristic of the in-zone cell.

Description

  The present invention relates to an information distribution system, for example, an information distribution system for distributing data to communication terminals moving between cells.

  In general, Cell Broadcast Service (CBS) and ETWS (Earthquake and Tsunami Warning System) are used to quickly distribute disaster information and the like via a communication network (hereinafter, both are collectively referred to as CBS). .) 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 recent years, the use of CBS for commercial purposes other than the distribution of disaster information has been studied. For example, commercial use includes advertisement distribution using CBS, distribution of public information and semi-public information (weather, accident information, incident information, etc.), distribution of information for controlling the operation of the communication terminal, and the like.

3GPP TS 23.041 V12.1.0 (2013-03) 3rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Technical realization of Cell Broadcast Service (CBS) (Release 12)

  The current CBS is basically used to distribute the same information to all communication terminals in the cell. Therefore, for example, according to the movement characteristics of the communication terminal, control is performed such that the distributed information is displayed on one communication terminal in the cell and the distributed information is not displayed on another communication terminal in the same cell. There is a problem that cannot be done. The control according to the movement characteristics of the communication terminal is, for example, control such that only a communication terminal heading in the north direction can receive a message distributed using the CBS.

  Here, when the communication terminal is equipped with a function such as a Global Positioning System (GPS), various sensors (for example, a gyro sensor or an acceleration sensor) or a road-to-vehicle ITS system, it grasps the movement characteristics of its own device. I can do it. However, there is a problem that the cost of the communication terminal increases when the communication terminal is equipped with functions such as GPS, various sensors, or a road-to-vehicle Intelligent Transport Systems (ITS) system. Therefore, the communication terminal is required to change the reception process according to the movement characteristics of the communication terminal without mounting a GPS or the like.

  An object of the present invention is to construct a low-cost system by performing a reception process of distributed information according to movement characteristics without a communication terminal being equipped with functions such as GPS, various sensors, or a road-to-vehicle ITS system. An object is to provide an information distribution system, a communication terminal, a distribution device, a data reception method, a data distribution method, and a program that can be changed.

  The information distribution system according to the first aspect of the present invention is a communication that moves from a cell formed by a base station arranged on a mobile communication network to a cell formed by another base station arranged on the mobile communication network. A terminal and a distribution device that distributes data to the communication terminal, the distribution device instructing execution of a reception process according to a change characteristic of a serving cell that accompanies movement between cells of the communication terminal A message is transmitted to the communication terminal, and when the communication terminal receives the instruction message, the communication terminal executes the data reception process based on a movement history related to movement between cells of the own device and a change characteristic of the serving cell. To do.

  A communication terminal according to the second aspect of the present invention moves from a cell formed by a base station arranged on a mobile communication network to a cell formed by another base station arranged on the mobile communication network, and distributes it A communication terminal that receives data distributed from the device, and a receiving unit that receives from the distribution device an instruction message instructing execution of reception processing according to a change characteristic of a serving cell accompanying movement between cells; A reception determination unit that performs the data reception process based on a movement history related to movement between cells of the device itself and a change characteristic of the serving cell.

  A distribution apparatus according to a third aspect of the present invention is a communication terminal that moves from a cell formed by a base station arranged on a mobile communication network to a cell formed by another base station arranged on the mobile communication network. A transmission device that distributes data to a transmission unit that transmits to the communication terminal an instruction message that instructs execution of a reception process according to a change characteristic of a serving cell that accompanies movement between cells of the communication terminal; It is to be prepared.

  The data receiving method according to the fourth aspect of the present invention moves from a cell formed by a base station arranged on a mobile communication network to a cell formed by another base station arranged on the mobile communication network, A data reception method in a communication terminal that receives data distributed from a distribution device, and receives an instruction message from the distribution device instructing execution of reception processing according to a change characteristic of a serving cell accompanying movement between cells. Then, the data reception process is executed based on the movement history regarding the movement of the own device between the cells and the change characteristics of the serving cell.

  The data distribution method according to the fifth aspect of the present invention is a communication that moves from a cell formed by a base station arranged on a mobile communication network to a cell formed by another base station arranged on the mobile communication network. A data distribution method in a distribution apparatus for distributing data to a terminal, wherein an instruction message for instructing execution of reception processing according to a change characteristic of a serving cell associated with movement of the communication terminal between cells is transmitted to the communication terminal To do.

  A program according to a sixth aspect of the present invention moves from a cell formed by a base station arranged on a mobile communication network to a cell formed by another base station arranged on the mobile communication network, and a distribution apparatus Receiving from the distribution device an instruction message for instructing execution of reception processing according to a change characteristic of a serving cell accompanying movement between cells, which is a program executed by a computer that receives data distributed from And causing the computer to execute the step of receiving the data based on the movement history related to the movement of the own device between the cells and the change characteristics of the serving cell.

  According to the present invention, in order to construct a low-cost system, the communication terminal changes the reception processing of the distributed information according to the movement characteristics without mounting functions such as GPS, various sensors, or the road-to-vehicle ITS system. An information distribution system, a communication terminal, a distribution device, a data reception method, a data distribution method, and a program can be provided.

1 is a configuration diagram of an information distribution system according to a first exemplary embodiment. It is a block diagram of the information delivery system concerning Embodiment 2. FIG. It is a block diagram of CBC concerning Embodiment 2. FIG. It is a block diagram of UE concerning Embodiment 2. FIG. FIG. 10 is a diagram showing a flow of CBS message transmission processing according to the second exemplary embodiment; FIG. 10 is a diagram showing a flow of CBS message reception processing according to the second exemplary embodiment; It is a figure explaining the movement history of UE concerning Embodiment 3. FIG. It is a figure explaining the movement history of UE concerning Embodiment 3. FIG. It is a block diagram of the information delivery system concerning Embodiment 4. FIG. 10 is a configuration diagram of an information distribution system according to a fifth exemplary embodiment. It is a figure explaining the movement history of UE concerning Embodiment 6. FIG. It is a block diagram of CBC and UE concerning Embodiment 6. FIG.

(Embodiment 1)
Embodiments of the present invention will be described below with reference to the drawings. First, a configuration example of the information distribution system according to the first exemplary embodiment of the present invention will be described with reference to FIG. The information distribution system includes a distribution device 10, a base station 20, a base station 30, and a communication terminal 40. The distribution device 10, the base station 20, and the base station 30 constitute a mobile communication network. The mobile communication network may be a network defined in the 3rd Generation Partnership Project (3GPP) or may be another network. For example, the distribution device 10 may be a general server on the cloud, and the base stations 20 and 30 may be WiFi access points (APs), and the mobile communication network includes a general cloud server and WiFi AP. It may be constituted by.

  The base station 20 is arranged on the mobile communication network and forms a cell 21. The cell 21 is an area where the base station 20 can communicate with the communication terminal 40. The base station 30 is arranged on the mobile communication network and forms a cell 31. The cell 31 is an area where the base station 30 can communicate with the communication terminal 40.

  The communication terminal 40 may be a mobile phone terminal, a smart phone terminal, a notebook personal computer or the like, or may be a vehicle equipped with a communication function or a moving means such as a train. A machine equipped with a communication function may be used. The communication terminal 40 may be a device in which a communication function is installed in a device that observes various information such as a smart meter and various environmental observation sensors. The communication terminal 40 moves from the cell 21 to the cell 31 or from the cell 31 to the cell 21. That is, the communication terminal 40 can communicate by moving between cells.

  The distribution device 10 distributes data to the communication terminal 40. The distribution device 10 distributes data to the communication terminal 40 via the base station 20 or the base station 30. The distribution apparatus 10 may transmit data to the base station 20 or the base station 30 via a relay apparatus or the like. The distribution device 10 may transmit data to the communication terminal 40 by broadcast distribution. Alternatively, the distribution apparatus 10 may transmit data to the communication terminal 40 by performing unicast communication designating the communication terminal 40 as a destination. The broadcast distribution includes multicast communication, broadcast communication, cell broadcast communication, and the like.

  Furthermore, the distribution apparatus 10 transmits to the communication terminal 40 an instruction message instructing execution of reception processing according to the change characteristics of the serving cell accompanying the movement of the communication terminal 40 between cells. The change characteristic of the serving cell may be a change history of the cell where the communication terminal 40 is located. For example, the change history may be information indicating through which cell the communication terminal 40 has moved to the current cell. Alternatively, the change characteristics of the serving cell may be information related to the time required for the movement accompanying the change of the cell in which the communication terminal 40 is located. For example, the time required for movement may be the time required for the communication terminal 40 to move to the cell 31 after entering the cell 21 via another cell.

The reception process may be a process in which the communication terminal 40 accepts or discards the distributed data, and is a process in which the received data is displayed on the display unit or the display unit is not displayed. May be. Note that various actions can be considered after the message is received, such as the following.
・ Display a message.
・ Output a message by voice.
Send the message to other terminals (UE etc.)
• Start data communication for the APL server according to the message.
・ Controls the software (application, etc.) of its own terminal according to the message.
Of course, the operation after receiving the message is not limited to the above.

  When the communication terminal 40 receives the instruction message transmitted from the distribution device 10, the communication terminal 40, based on the movement history regarding the movement between the cells of the own device and the information regarding the change characteristics of the serving cell included in the instruction message, 10 executes the reception process of the data distributed from 10.

  The movement history may be a change history of the cell in which the communication terminal 40 is located. For example, the change history may be information indicating through which cell the communication terminal 40 has moved to the current cell. The movement history may be information related to the time required for movement accompanying a change of the cell where the communication terminal 40 is located. For example, the time required for the movement may be the time required for the communication terminal 40 to move to the cell 31 after entering the cell 21 from another cell.

  As described above, by using the information distribution system according to the first exemplary embodiment of the present invention, the communication terminal 40 can move the movement history regarding the movement between the cells of the own device and the in-zone cell notified from the distribution device 10. The reception process of data distributed from the distribution device 10 can be changed according to the information regarding the change characteristics. Thereby, for example, the communication terminal 40 does not accept the distributed data uniformly and display it on the display unit or the like, but discards the received data or changes the received data depending on the movement history of the own device. It is also possible to execute a process of not displaying on the display unit or the like.

  Therefore, for example, the communication terminal 40 only needs to execute processing associated with reception for only the information to be received, and does not need to execute processing associated with reception for unnecessary information, thus reducing the processing burden associated with reception. I can do it.

(Embodiment 2)
Next, a configuration example of the information distribution system according to the second exemplary embodiment of the present invention will be described with reference to FIG. The information distribution system in FIG. 2 will be described using an example in which a network configuration defined in 3GPP is used as a mobile communication network.

  The information distribution system of FIG. 2 has a Cell Broadcast Center (CBC) 12, a Mobile Management Element (MME) 61, an evolved Node B (eNB) 22, an eNB 32, an Application (APL) server 50, and a User Equipment (UE) 42. ing.

  The CBC 12 corresponds to the distribution device 10 in FIG. The eNB 22 and the eNB 32 correspond to the base station 20 and the base station 30 in FIG. The UE 42 corresponds to the communication terminal 40 in FIG. Here, CBC12, MME61, eNB22, and eNB32 comprise a mobile communication network. The APL server 50 is a server device arranged on a network different from the mobile communication network, for example. That is, the APL server 50 is a server device managed by an operator different from the operator that manages the mobile communication network. The UE 42 is a communication terminal that performs communication via a mobile communication network. In the figure, the UE 42 is moving from the cell formed by the eNB 22 to the cell formed by the eNB 32. Hereinafter, each device in FIG. 2 will be described.

  The eNB 22 and the eNB 32 are base stations that support Long Term Evolution (LTE) as a radio system. In FIG. 2, a configuration example using the eNB 22 and the eNB 32 as base stations is described, but a Node B (NB) or the like corresponding to a 2G or 3G system may be used. The eNB 22 and the eNB 32 transmit data transmitted from the host device of the mobile communication network to the UE 42 and further transmit data transmitted from the UE 42 to the host device. The host device is, for example, the MME 61 or the CBC 12. The host device may be referred to as a relay device.

  When the eNB 22 and the eNB 32 transmit data to the UE 42, the eNB 22 and the eNB 32 perform cell broadcast communication in which the data is transmitted to all UEs located in the cell formed by the eNB 22 and the eNB 32. The cell broadcast communication is communication in which the MME 61 instructs the eNB to distribute data in cell units, and the eNB distributes data to all UEs located in the cell. A cell to which data is to be distributed is determined in the CBC 12.

  The MME 61 is connected to the eNB 22 and the CBC 12. The MME 61 requests the eNB corresponding to the distribution area (for example, distribution cell) instructed from the CBC 12, or including the instructed distribution area, or the all managed subordinates to transmit the message to be distributed. Hereinafter, for simplicity of explanation, the MME 61 will be described as requesting transmission of a message to be delivered to the eNB corresponding to the designated delivery area. Further, the MME 61 performs movement management of the UE 42. For example, when an incoming message for the UE 42 is transmitted, the MME 61 designates a location registration area where the UE 42 is located, and executes a calling process for the UE 42. In addition, the MME 61 transmits and receives control messages regarding the UE 42.

  The CBC 12 is connected to the MME 61 and the APL server 50. When a message requesting data distribution is transmitted from the APL server 50, the CBC 12 determines a distribution area and creates a message (CBS message) to be distributed. The CBC 12 may select a distribution cell that is a distribution area in units of cells or may be selected in units of a tracking area (TA) that is a location registration area of the UE. Furthermore, it may be selected in units of Emergency Area (EA), which means an emergency information distribution area. In the following, for simplicity of explanation, the CBC 12 selects a distribution cell that is mainly a distribution area in units of cells. The CBC 12 transmits the CBS message created via the MME 61 to the eNB.

  The APL server 50 is connected to the CBC 12. The APL server 50 transmits a message requesting data distribution to the CBC 12. The message for requesting data distribution includes a reception policy regarding a communication terminal that receives data. The APL server 50 may be, for example, a server managed by a government agency that distributes earthquake early warnings, etc., such as advertisement distribution, distribution of public information and semi-public information (weather, accident information, incident information, etc.), communication terminal It may be a server managed by a company or the like that distributes information for controlling the operation.

  The UE 42 is a terminal that receives data distributed from the CBC 12. UE42 changes the reception process of the data delivered from CBC12 according to the movement log | history of an own apparatus. The operation and function in the UE 42 will be described in detail later.

  Subsequently, a configuration example of the CBC 12 according to the second exemplary embodiment of the present invention will be described with reference to FIG. The CBC 12 includes a reception policy conversion unit 13 and a message transmission / reception unit 15.

  The reception policy conversion unit 13 converts the reception policy transmitted from the APL server 50 into information related to the change characteristics of the serving cell. The reception policy transmitted from the APL server 50 is, for example, information on mobility characteristics that the UE 42 that receives data should satisfy. The information related to the mobility characteristics that the UE 42 should satisfy may be, for example, information instructing that only the UE that has passed through a specific route receives data. Or the information regarding the mobility characteristic which UE42 should satisfy | fill may be the information which instruct | indicates that only UE which did not go through a certain specific location receives data. Or the information regarding the mobility characteristic which UE42 should satisfy | fill may be the information which instruct | indicates that only the UE which passed via a certain specific route displays the CBS message after receiving a CBS message. Alternatively, the information on the mobility characteristics that the UE 42 should satisfy may be information indicating that only UEs having a short stay time (or conversely, a long time) at a specific location receive data. Alternatively, the information on the mobility characteristics that the UE 42 should satisfy is information that indicates that only a UE that has a short stay time (or conversely a long stay) in a specific area after receiving the CBS message displays the CBS message. It may be. In the above description, an example of information regarding the movement characteristics of receiving data when each condition is satisfied has been described. However, the information regarding movement characteristics indicates that data is discarded when each condition is satisfied. It may be information.

  For example, the reception policy conversion unit 13 sets a reception policy that only UEs that have passed through a specific route receive data, and only UEs that have moved via cell A, cell B, and cell C receive data. The received information is converted into information related to the change characteristics of the serving cell of the UE 42. In addition, the reception policy conversion unit 13 has a reception policy that, for example, only UEs that have not passed through a specific location receive data, and only UEs that have not passed through cell A receive data. The information is converted into information related to the change characteristics of the UE 42 serving cell. Also, the reception policy conversion unit 13 displays a CBS message received only by a UE that has passed through a specific route after receiving the CBS message. Only the UE that has moved via B and the cell C displays data, and the information is converted into information regarding the change characteristics of the UE 42 serving cell. In addition, the reception policy conversion unit 13 uses, for example, a reception policy in which only a UE having a short stay time (or conversely a long stay) at a specific location receives data, and the stay time of the cell B is short. The information is converted into information related to the change characteristics of the serving cell of the UE 42, such as only the UE receiving data (or vice versa). Further, the reception policy conversion unit 13 displays a reception policy in which only a UE having a short stay time (or conversely a long stay) in a specific area after receiving a CBS message displays a CBS message. The UE 42 converts the information into the change characteristics of the serving cell of the UE 42 such that only the UE having a short stay time (or conversely, a long stay time) after receiving the message displays the data. The reception policy conversion unit 13 outputs information obtained by converting the reception policy transmitted from the APL server 50 to the message transmission / reception unit 15. In the above description, the example in which data is received when each condition is satisfied as the information on the change characteristics of the serving cell of the UE 42 has been described. However, the information on the change characteristics of the serving cell of the UE 42 If the condition is satisfied, it may be information instructing to discard the data.

  Furthermore, when a distribution area is specified in the reception policy transmitted from the APL server 50, the reception policy conversion unit 13 determines a cell (distribution cell) corresponding to the specified distribution area. The reception policy conversion unit 13 outputs information on the determined cell to the message transmission / reception unit 15.

  The message transmission / reception unit 15 generates a CBS message and transmits the generated CBS message to the MME 61. The message transmission / reception unit 15 also transmits information regarding the delivery destination cell to the MME 61. Here, the message transmission / reception unit 15 transmits information on the change characteristics of the serving cell to be satisfied by the UE in the CBS message. For example, when the CBS message has a configuration including a header and a payload, information regarding the change characteristics of the serving cell to be satisfied by the UE may be set in the payload, or conversely, may be set in the header.

  Then, the structural example of UE42 concerning Embodiment 2 of this invention is demonstrated using FIG. The UE 42 includes a cell ID acquisition unit 44, a movement history holding unit 45, a change characteristic determination unit 46, and a message reception unit 47. Here, the change characteristic determination unit 46 and the message reception unit 47 may be provided in the same communication module. Alternatively, the change characteristic determination unit 46 may be provided in a module different from the communication module having the message reception unit 47.

  The cell ID acquisition unit 44 acquires information (hereinafter referred to as a cell ID) for identifying a cell from an eNB that manages a cell in which the UE 42 is currently located. The eNB transmits broadcast information including a cell ID to all UEs in the cell. Further, the cell ID acquisition unit 44 may receive broadcast information periodically transmitted from the eNB and acquire a cell ID included in the broadcast information. Alternatively, the cell ID acquisition unit 44 may receive broadcast information transmitted from the eNB that manages the changed serving cell when the serving cell is changed, and obtain the cell ID included in the broadcasting information. Good. Alternatively, the cell ID acquisition unit 44 receives information related to the cell after change transmitted from the eNB that manages the pre-change serving cell that is detected in advance to change the serving cell, and obtains the cell ID. You may do it. The cell ID acquisition unit 44 outputs information related to the acquired cell ID to the movement history holding unit 45.

  The movement history holding unit 45 creates a movement history of the UE 42 by using information on the cell ID output from the cell ID acquisition unit 44. The movement history holding unit 45 may hold, for example, the cell IDs output from the cell ID acquisition unit 44 in the order of time series acquired, and may create a history regarding changes in the serving cell caused by the movement of the UE 42.

  Furthermore, the movement history holding unit 45 measures, for example, the time from acquiring the cell ID from the eNB 22 to acquiring the cell ID from the eNB 32, until the UE 42 is in the eNB 22 and moves to the eNB 32. Information about time may be created as a movement history. In addition, when the cell history acquisition unit 45 periodically acquires a cell ID from the eNB, the movement history holding unit 45 counts the number of times the same cell ID has been acquired, so that information on the time that the mobile cell has been in the same cell, that is, different eNB You may create the information regarding the time until moving to.

  The message receiving unit 47 receives the CBS message transmitted from the eNB. The message reception unit 47 extracts information on the change characteristics of the serving cell that the UE should satisfy from the CBS message, and outputs the extracted information to the change characteristic determination unit 46.

  When the change characteristic determination unit 46 receives information on the change characteristic of the serving cell that the UE should satisfy from the message reception unit 47, the change characteristic determination unit 46 collects information on the movement history of the UE 42 from the movement history holding unit 45. The change characteristic determination unit 46 determines whether or not the movement history of the UE 42 received from the movement history holding unit 45 satisfies the change characteristic of the serving cell that the UE received from the message reception unit 47 should satisfy.

  The change characteristic determination unit 46 performs CBS message reception processing according to the determination result. For example, when the movement history of the UE 42 satisfies the change characteristics of the serving cell to be satisfied by the UE, the change characteristic determination unit 46 receives the CBS message and displays the content of the CBS message on the display unit or the like of the UE 42. You may control as follows. The control content in the UE 42 is set in the CBS message. For example, contents such as discarding the CBS message may be set in the CBS message when the movement history of the UE 42 satisfies the change characteristics of the serving cell that the UE should satisfy. When the CBS message having this content is received, if the movement history of the UE 42 satisfies the change characteristic of the serving cell that the UE should satisfy, the change characteristic determination unit 46 discards the CBS message. Or the change content determination part 46 may hold | maintain the control content in UE42 previously. For example, when the movement history of the UE 42 satisfies the change characteristics of the serving cell to be satisfied by the UE, the change characteristic determination unit 46 accepts the CBS message according to the control content held in advance. In addition, when the movement history of the UE 42 satisfies the change characteristics of the serving cell to be satisfied by the UE, or conversely, the control content (accepted, discarded, etc.) can be flexibly used.

Here, the above control content will be described in detail. Examples of the control content include the following.
・ Accept the message.
-Discard the message.
In addition, the operation content after receiving the message may be various, for example, the following.
・ Display a message.
・ Output a message by voice.
Send the message to other terminals (UE etc.)
• Start data communication for the APL server according to the message.
・ Controls the software (applications, etc.) of its own terminal according to the message.
Of course, the operation after receiving the message is not limited to the above.

  Next, a flow of CBS message transmission processing in the CBC 12 according to the second exemplary embodiment of the present invention will be described with reference to FIG. First, the reception policy conversion unit 13 receives information related to the reception policy of the CBS message that the UE should satisfy from the APL server 50 (S11). In the reception policy, for example, information on mobility characteristics to be satisfied by the UE that receives the CBS message is set. Further, for example, information regarding the area where the CBS message is distributed is set in the reception policy.

  Next, the reception policy conversion unit 13 converts the information on the mobility characteristic that the UE set in the reception policy should satisfy into the information on the change characteristic of the serving cell that the UE should satisfy (S12). Next, the reception policy conversion unit 13 converts the information related to the area where the CBS message is distributed into information related to the cell where the CBS message is distributed (S13).

  Next, the message transmission / reception part 15 produces | generates the CBS message transmitted to eNB which manages a delivery destination cell. The CBS message may be, for example, a message requiring an emergency regarding a disaster or a message regarding an advertisement. The content of the CBS message is determined by the APL server 50 and is notified to the CBC 12 at the same time as the processing of S11 or in advance. Further, the message transmission / reception unit 15 sets information related to the change characteristics of the serving cell in the payload constituting the CBS message. In addition, you may set the information regarding the change characteristic of a serving cell to the header which comprises a CBS message.

  Next, the message transmission / reception part 15 transmits the produced | generated CBS message to eNB which manages a delivery destination cell via MME61 (S15).

  Subsequently, a flow of CBS message reception processing in the UE 42 according to the second embodiment of the present invention will be described with reference to FIG. First, when the UE 42 is located in a cell formed by the eNB 32, the message receiving unit 47 receives the CBS message transmitted from the eNB 32 (S21). Next, the change characteristic determination unit 46 collects information on the movement history of the UE 42 from the movement history holding unit 45 (S22). The movement history holding unit 45 uses the cell ID acquired by the cell ID acquisition unit 44 to generate information related to the movement history of the UE 42 in advance. The change characteristic determination unit 46 collects information on the movement history of the UE 42 generated before receiving the CBS message. Alternatively, the movement history holding unit 45 may generate information regarding the movement history of the UE 42 when instructed to generate information regarding the movement history from the change characteristic determination unit 46 that acquired the CBS message.

  Next, the change characteristic determination unit 46 determines whether or not the information related to the movement history collected from the movement history holding unit 45 satisfies the change characteristic of the serving cell to be satisfied by the UE set in the CBS message (S23). ). Here, a case will be described in which the CBS message is set to display the CBS message on the display unit when the change characteristics of the serving cell are satisfied. In this case, when the change characteristic determination unit 46 determines that the information about the movement history collected from the movement history holding unit 45 satisfies the change characteristic of the serving cell that the UE set in the CBS message should satisfy, Control for displaying the CBS message is executed (S24). When the change characteristic determination unit 46 determines that the information related to the movement history collected from the movement history holding unit 45 does not satisfy the change characteristic of the serving cell to be satisfied by the UE set in the CBS message, the change characteristic determination unit 46 displays the received CBS message. The discard control is executed (S25).

  As described above, by using the information distribution system according to the second exemplary embodiment of the present invention, a UE that has received data using CBS using a network defined in 3GPP is set in APL server 50. The reception process can be changed according to the reception policy. For example, when the UE does not satisfy the reception policy, the UE does not need to display all CBS messages on the display unit or the like by performing processing such as discarding the received CBS message. Therefore, the UE can change the reception processing (acceptance, discard, display, non-display, etc.) of the distributed information according to the movement characteristics without installing functions such as GPS, various sensors, or the road-to-vehicle ITS system. I can do it. Moreover, UE can reduce the load by performing a display process.

  Furthermore, the APL server 50 does not specify the UE movement history based on the detailed network configuration information such as the location of the cell formed in the mobile communication network, for example, the UE movement based on the address information etc. You can set the reception policy by specifying the history. As a result, the mobile communication network side can prevent the information such as the network configuration to be managed by the business operator from being disclosed to the outside. Furthermore, since the CBC 12 has a function of converting the reception policy transmitted from the APL server 50 into information related to the change characteristics of the serving cell, the APL server 50 receives only using simple information such as address information. Policies can be set. As a result, it is possible to reduce the burden of the reception policy generation process in the APL server 50.

(Embodiment 3)
Next, specific contents of the information regarding the change characteristics of the serving cell according to the third embodiment of the present invention will be described with reference to FIG.

  For example, the UE that has moved to the C area via the A area and the B area with respect to the distribution instruction that the APL server 50 distributes the CBS message to the D area and the CBS message receives the CBS message. A case where the reception policy in the UE is transmitted to the CBC 12 will be described. Here, for example, area A corresponds to cell 2 in FIG. 7, area B corresponds to cell 4 in FIG. 7, area C corresponds to cell 7 in FIG. 7, area D corresponds to cell 9 in FIG. Assume that it is equivalent.

  In this case, the CBC 12 determines the delivery destination of the CBS message as the eNB that manages the cell 9 corresponding to the D region. Further, the CBC 12 uses the reception policy transmitted from the APL server 50 as a change characteristic of the serving cell to be satisfied by the UE, and the UE that has moved via the cell 2, the cell 4, and the cell 7 accepts the CBS message. Is converted into information. The CBC 12 sets the converted information in the CBS message, and transmits the CBS message to the eNB that manages the cell 9 via the MME 61.

  Here, it is assumed that UE-A and UE-B are in the cell 9. Since the CBS message is distributed by broadcast, both UE-A and UE-B receive the CBS message. UE-A moves via cell 1, cell 4 and cell 6. Therefore, UE-A does not satisfy the changing characteristics of the serving cell that the UE set in the CBS message should satisfy. As a result, UE-A discards the received CBS message. On the other hand, UE-B moves via cell 2, cell 4 and cell 7. Therefore, UE-B satisfies the changing characteristics of the serving cell that the UE set in the CBS message should satisfy. As a result, UE-B continues the reception process of the received CBS message. For example, the UE-B executes a process for displaying the received CBS message on a display unit or the like.

  In the example of FIG. 7, the case has been described in which the area designated by the APL server 50 and the cell have a one-to-one correspondence. However, the area designated by the APL server 50 and the cell are 1 to N (N is a natural number). ) Or N-to-1 correspondence.

Note that the transit cell specified as the change characteristic of the serving cell to be satisfied by the UE may be other than the adjacent continuous cell. That is, for example, when the example of FIG. 7 is used, the UE that has moved via the cell 2, the cell 7, and the cell 9 may receive the CBS message. In this case, in the above example, UE-B is a change characteristic set in the CBS message while holding information via cell 2, cell 4, cell 7, and cell 9 (currently located). Via cell 2, cell 7 and cell 9, it is determined that the condition is satisfied (it is determined to be satisfied because of partial matching), and the CBS message reception process is continued. In other words, the change information set in the CBS message may specify route information between cells that are not physically adjacent (in terms of radio waves or communication coverage). (In the above example, for example, the cell 4 does not have to be included as the route information.) Note that there are various types of representation of the route cell specified as the change characteristics of the serving cell to be satisfied by the UE specified in the CBS message. For example,
・ At least via cell X, cell Y, and cell Z. (It is determined that the condition is satisfied even if a cell other than X, Y, Z is routed on the way.)
-Always pass through cell X, cell Y, and cell Z in succession. (If it passes through a cell other than X, Y, Z on the way, it is determined that the condition is not satisfied.)
-At least when cell X, cell Y, and cell Z are successively routed. (As long as X, Y, and Z are passed continuously, it is determined that the condition is satisfied regardless of which cell is passed before and after that.)
Etc., or a combination of these may be specified.

  Also, for example, a delivery instruction that the APL server 50 delivers a CBS message to the A area, and after receiving the CBS message, the UE that has passed through the A area, the B area, and the C area should display the CBS message. The reception policy at the UE to be transmitted may be transmitted to the CBC 12. In this case, UE-B receives the CBS message in cell 2 and displays the CBS message received in cell 2 after passing through cell 2, cell 4 and cell 7. The condition regarding the change characteristics of the serving cell after receiving the CBS message may be permanently valid after receiving the CBS message, or the time, the number of acquisitions of different cell IDs (number of movements between cells), The number of acquisitions of the same cell ID, acquisition of a specific cell ID, etc. may be invalidated. When invalidating the condition regarding the change characteristics of the serving cell, the UE may perform processing (for example, discard or acceptance) opposite to the instruction content in the reception policy.

  Next, other specific contents of the information related to the change characteristics of the serving cell according to the third embodiment of the present invention will be described with reference to FIG.

  For example, the UE in which the APL server 50 accepts the SA-b advertisement message only among the vehicles that are traveling in the area D on the highway and that has not taken a break in the service area (SA) -a. A case where the reception policy in FIG. 1 is transmitted to the CBC 12 will be described. Here, for example, it is assumed that the area D corresponds to the cell 3 in FIG. 8 and the area where the SA-a is located corresponds to the cell 2 in FIG.

  Whether or not the vehicle has taken a break in SA-a is determined based on the time spent in cell 2. Specifically, whether or not the vehicle has rested in SA-a is determined by determining whether the cell-UE and UE-B have acquired the cell ID related to cell 2 when moving from cell 1 to cell 3. It is determined based on the time required to obtain the cell ID for 3. UE-A and UE-B acquire an ID related to cell 2 when moving from cell 1 to cell 2, and acquire an ID related to cell 3 when moving from cell 2 to cell 3.

  In this case, the CBC 12 determines the delivery destination of the CBS message as the eNB that manages the cell 3. Further, the CBC 12 uses the reception policy transmitted from the APL server 50 as the change characteristic of the serving cell to be satisfied by the UE, and the difference between the acquisition time of the cell ID related to the cell 2 and the acquisition time of the cell ID related to the cell 3 is T (T is an integer greater than or equal to 0) The information is converted into information indicating that UEs of less than or equal to minutes should receive the CBS message. Note that the unit of T may be any of seconds, minutes, hours, days, months, and the like, but will be described below with an example of minutes. The CBC 12 sets the converted information in the CBS message, and transmits the CBS message to the eNB that manages the cell 3 via the MME 61.

  Here, it is assumed that UE-A and UE-B are in the cell 3. Since the CBS message is distributed by CBS, both UE-A and UE-B receive the CBS message. UE-A assumes that the difference between the acquisition time of the cell ID related to cell 2 and the acquisition time of the cell ID related to cell 3 is greater than T minutes. In this case, UE-A does not satisfy the changing characteristics of the serving cell to be satisfied by the UE set in the CBS message. As a result, UE-A discards the received CBS message. On the other hand, UE-B assumes that the difference between the acquisition time of the cell ID related to cell 2 and the acquisition time of the cell ID related to cell 3 is T minutes or less. In this case, UE-B satisfies the changing characteristics of the serving cell to be satisfied by the UE set in the CBS message. As a result, UE-B continues the reception process of the received CBS message. For example, the UE-B executes a process for displaying the received CBS message on a display unit or the like.

  Also, for example, the distribution instruction that the APL server 50 distributes the CBS message to the E area, and only the vehicle (UE) resting on the SA-a after receiving the CBS message should display the advertisement message (CBS message). The reception policy in the UE may be transmitted to the CBC 12. Here, for example, it is assumed that the region E corresponds to the cell 1 in FIG. 8, and the region in which the SA-a is located corresponds to the cell 2 in FIG. In this case, UE-A and UE-B receive the CBS message in cell 1, but only UE-A in which the residence time of cell 2 has become longer due to a subsequent stop at SA-a Display the received CBS message. The condition regarding the change characteristics of the serving cell after receiving the CBS message may be permanently valid after receiving the CBS message, or the time, the number of acquisitions of different cell IDs (number of movements between cells), The number of acquisitions of the same cell ID, acquisition of a specific cell ID, or the like may be invalidated. When invalidating the condition regarding the change characteristics of the serving cell, the UE may perform processing (for example, discard or acceptance) opposite to the instruction content in the reception policy.

  In addition, even if the change characteristics of the serving cell regarding the travel time (stay time) are specified by the difference in the acquisition time of each cell ID as in the above example, the difference between the acquisition times of a plurality of cell IDs may be set. good. That is, for example, when the example of FIG. 8 is used, the difference from the cell ID acquisition time of cell 1 to the cell ID acquisition time of cell 2 is equal to or less than T_1 (T_1 is an integer of 0 or more) and cell ID acquisition of cell 2 A UE whose difference from the time to the cell ID acquisition time of the cell 3 is equal to or less than T_2 (T_2 is an integer of 0 or more) may be set to receive the CBS message. The unit of T_1 and T_2 may be any of seconds, minutes, hours, days, months, and the like. Moreover, the cell which calculates | requires the difference of the acquisition time of cell ID may be other than adjacent cells (In the case of FIG. 8, for example, cell 2 and cell 3). That is, for example, when the example of FIG. 8 is used, a UE whose difference from the cell ID acquisition time of the cell 1 to the cell ID acquisition time of the cell 3 is equal to or less than T_3 (T_3 is an integer of 0 or more) should receive the CBS message. May be set. The unit of T_3 may be any of seconds, minutes, hours, days, months, etc.

  Moreover, in CBC12, when the UE acquires a cell ID from the eNB periodically, the change characteristics of the serving cell regarding the travel time (stay time) may be specified by the number of times the same cell ID is acquired. That is, in the above example, as a change characteristic of the serving cell set by the CBC 12 in the CBS message, a UE whose cell ID acquisition number of the cell 2 is N (N is an integer of 0 or more) times or less should receive the CBS message. , May be set.

  Furthermore, as the change characteristic of the serving cell regarding the travel time (stay time) set by the CBC 12 in the CBS message, only the stay time of each cell may be set. That is, in the above example, as a change characteristic of the serving cell set by the CBC 12 in the CBS message, a UE whose cell 2 stay time is equal to or less than M (M is an integer of 0 or more) should receive the CBS message is set. May be. Note that the unit of M may be any of seconds, minutes, hours, days, months, and the like, but will be described below with an example of minutes. In this case, the UE side may calculate the change characteristics (in this example, the stay time of the cell 2) of the serving cell to be satisfied by the UE used for the acceptance determination of the CBS message from the difference in acquisition time of each cell ID. However, it may be calculated from the number of times the cell ID of the cell 2 is acquired, or may be calculated by another method.

  As described above, the CBC 12 can convert the reception policy set by the APL server 50 into information related to the change characteristics of the serving cell. In the third embodiment, the specific example of the information regarding the change characteristics of the serving cell has been described with reference to FIGS. 7 and 8. However, the CBC 12 is not limited to the contents of FIGS. The policy can be converted into specific information related to the changing characteristics of the serving cell. The CBC 12 may manage the reception policy and the information related to the change characteristics of the serving cell after converting the reception policy in association with each other using a database or the like.

(Embodiment 4)
Subsequently, a configuration example of the information distribution system according to the fourth exemplary embodiment of the present invention will be described with reference to FIG. The information distribution system in FIG. 9 has a CBC 70 and an APL server 80.

  The APL server 80 includes a reception policy conversion unit 13 and a reception policy creation unit 17. The reception policy conversion unit 13 is the same as the reception policy conversion unit 13 in FIG. The reception policy creation unit 17 creates information regarding the mobility characteristics that the UE 42 that receives data should satisfy as the reception policy. The reception policy creation unit 17 outputs the created reception policy to the reception policy conversion unit 13.

  The reception policy conversion unit 13 converts the received reception policy into information related to the change characteristics of the serving cell, similarly to the reception policy conversion unit 13 of FIG. The reception policy conversion unit 13 transmits information regarding the change characteristics of the serving cell to the message transmission / reception unit 15.

  The CBC 70 has a message transmission / reception unit 15. The message transmission / reception unit 15 is the same as the message transmission / reception unit 15 of FIG. The message transmission / reception unit 15 generates a CBS message and transmits the generated CBS message to the MME 61. The message transmission / reception unit 15 transmits information on the change characteristics of the serving cell to be satisfied by the UE whose reception policy has been converted, included in the CBS message.

  As described above, the CBC 70 in FIG. 9 is different from the CBC 12 in FIG. 3 in that it does not have the reception policy conversion unit 13 but has only the message transmission / reception unit 15. Furthermore, the APL server 80 in FIG. 9 is different from the APL server 50 in FIG. 2 in that the reception policy conversion unit 13 is included. In this way, the reception policy conversion unit 13 and the message transmission / reception unit 15 are distributed and arranged in different devices, so that the reception policy conversion unit 13 and the message transmission / reception unit 15 are arranged in one device as compared with the case of FIG. , Processing load can be reduced and distributed.

  In addition, when a business operator that manages a mobile communication network such as CBC 70 or MME 61 operates the APL server 80, the APL server 80 may acquire network configuration information such as the location of a cell managed by the mobile communication business operator. I can do it. That is, in the description of FIG. 2 and FIG. 3 and the like, it is assumed that the operator that manages the mobile communication network is different from the operator that manages the APL server 80. For this reason, since the APL server 80 cannot acquire network configuration information managed by the mobile communication carrier, the CBC 12 converts the reception policy into information related to the change characteristics of the serving cell.

  On the other hand, when the mobile communication provider and the provider managing the APL server 80 are the same, the APL server 80 can acquire the network configuration information managed by the mobile communication provider. Therefore, as shown in FIG. 9, the APL server 80 can convert the reception policy into information related to the change characteristics of the serving cell.

(Embodiment 5)
Next, a configuration example of the information distribution system according to the fifth exemplary embodiment of the present invention will be described using FIG. The information distribution system in FIG. 10 includes a CBC 70, an MTC-IWF 90, and an APL server 50. The MTC-IWF 90 is a node device arranged in a mobile communication network defined in 3GPP. The MTC-IWF 90 is, for example, a node device used to control an M2M device that is a device that autonomously transmits data without communication between communication devices. Further, the MTC-IWF 90 has an interface for performing communication with a server device or the like that is arranged in a network different from the mobile communication network.

  The MTC-IWF 90 has a reception policy conversion unit 13. The reception policy conversion unit 13 is the same as the reception policy conversion unit 13 in FIG. 3 and the reception policy conversion unit 13 in FIG. The reception policy conversion unit 13 of the MTC-IWF 90 converts the reception policy transmitted from the APL server 50 into information related to the change characteristics of the serving cell. The CBC 70 is the same as the CBC 70 in FIG.

  As described above, by using the information distribution system according to the fifth exemplary embodiment of the present invention, the MTC-IWF defined in 3GPP can convert the reception policy into information related to the change characteristics of the serving cell. . In this way, the reception policy conversion unit 13 and the message transmission / reception unit 15 are distributed and arranged in different devices, so that the reception policy conversion unit 13 and the message transmission / reception unit 15 are arranged in one device as compared with the case of FIG. , Processing load can be reduced and distributed.

(Embodiment 6)
Next, specific contents of the information related to the change characteristics of the serving cell according to the sixth embodiment of the present invention will be described with reference to FIG. For example, a delivery instruction that the APL server 50 delivers a CBS message to the D region, and a reception policy in the UE that the UE moving in the lane direction of the XX expressway accepts the CBS message. The case where it transmits to CBC12 is demonstrated. Here, for example, it is assumed that the D region corresponds to the cell 9 in FIG. Furthermore, it is assumed that the broken line in FIG. 11 indicates the XX highway.

  In this figure, according to the flow of physical cell arrangement | positioning, specifically, it has shown that ID is provided to each cell along XX expressway sequentially. For example, it is assumed that the vehicle traveling on the up lane of the XX highway moves in the order of cell 2, cell 4, and cell 7. In this case, sequence ID 1 may be assigned to cell 2, sequence ID 2 may be assigned to cell 4, and sequence ID 3 may be assigned to cell 7. Accordingly, the UE can satisfy the reception policy by accepting the CBS message when the sequence ID assigned to the cell that has passed in the past is increasing as the change characteristic of the cell in the serving area. Specifically, an example shown in FIG. 11 will be described.

  UE-A and UE-B located in the cell 9 receive the CBS message distributed by broadcast. UE-A passes through cell 1, cell 4, and cell 6, and the sequence ID in the routed cell does not increase, and therefore does not satisfy the reception policy. Therefore, UE-A discards the received CBS message. On the other hand, UE-B passes through cell 2, cell 4, and cell 7, and the sequence IDs in the passed cells are as large as ID1, ID2, and ID3. In such a case, UE-B accepts the CBS message to satisfy the reception policy.

  Then, the structural example of CBC100 and UE110 concerning Embodiment 6 of this invention is demonstrated using FIG. First, a configuration example of the CBC 100 will be described. The CBC 100 includes a sequence number conjugated message transmission / reception unit 101, a sequence number type reception policy conversion unit 102, and a message transmission / reception unit 15.

  When the sequence number conjugation message transmission / reception unit 101 receives an instruction message related to the assignment of a sequence ID from a sequence number distribution instruction server or the like, the sequence number transmission / reception unit 101 transmits a CBS message in which the sequence ID is set to each eNB. For example, the UE 110 transmits a CBS message in which the sequence ID 1 is set to the eNB that forms the cell 2, and transmits a CBS message in which the sequence ID 2 is set to the eNB that forms the cell 4. For the eNB forming 7, a CBS message in which the sequence ID 3 is set is transmitted. The eNB 32 transmits the CBS message transmitted from the sequence number conjugation message transmission / reception unit 101 via the MME 61 to the UE 110.

  The sequence number type reception policy conversion unit 102 receives a reception policy utilizing the sequence ID from the APL server. For example, the sequence number type reception policy conversion unit 102 receives a CBS message from the APL server and a distribution instruction that the CBS message is distributed to the D region, and the UE moving in the lane direction on the XX highway. In any case, the reception policy at the UE is received.

  In such a case, the sequence number type reception policy conversion unit 102 assigns the received reception policy to the cell passed in the past so that only the UE moving in the uplink lane direction can accept the CBS message. When the sequence ID being added is increased, the received policy is converted into a reception policy for accepting the CBS message. Also, when the UE moving in the down lane direction receives a reception policy that the CBS message should be received, the CBS message is accepted when the sequence ID assigned to the cell that has passed in the past is decreasing. It may be converted into a reception policy.

  The message transmission / reception unit 15 transmits the reception policy converted by the sequence number type reception policy conversion unit 102 to the UE 110 via the MME 61 and the eNB 32.

  Next, a configuration example of the UE 110 will be described. The UE 110 includes a sequence number acquisition unit 111, a sequence number history holding unit 112, a sequence number change characteristic determination unit 113, and a message reception unit 47.

  The sequence number acquisition unit 111 receives the CBS message set with the sequence ID transmitted from the sequence number conjugation message transmission / reception unit 101 via the MME 61 and the eNB 32. The sequence number acquisition unit 111 outputs the sequence ID set in the received CBS message to the sequence number history holding unit 112.

  Here, the sequence number acquisition unit 111 may receive the CBS message in which the sequence ID is set from the eNB 32 at the timing when the cell in the area is changed, and periodically receives the CBS message in which the sequence ID is set. You may receive it. For example, when the sequence number acquisition unit 111 periodically receives a CBS message in which a sequence ID is set, when the same sequence ID is received, the sequence number acquisition unit 111 does not output the received sequence ID to the sequence number history holding unit 112, When the received sequence ID changes, the changed sequence ID may be output to the sequence number history holding unit 112.

  The sequence number history holding unit 112 holds the sequence ID output from the sequence number acquisition unit 111, and manages the change history of the cell to which the UE 110 has moved using the sequence ID.

  The message reception unit 47 receives the CBS message in which the reception policy transmitted from the message transmission / reception unit 15 is set via the MME 61 and the eNB 32. Message reception unit 47 outputs the reception policy set in the CBS message to sequence number change characteristic determination unit 113.

  Sequence number change characteristic determination section 113 determines whether or not the change history of the cell to which UE 110 has moved satisfies the reception policy output from message reception section 47. For example, when the sequence number change characteristic determination unit 113 outputs a reception policy that accepts a CBS message when the sequence ID assigned to a cell that has passed in the past increases, the sequence number history holding unit 112 It is determined whether or not the change history of the sequence ID held in is increasing. Sequence number change characteristic determination section 113 executes CBS message reception processing according to the determination result.

  As described above, the CBC 100 can transmit the CBS message to notify the sequence ID separately from the CBS message in which the reception policy is set. Thereby, UE110 can change the reception process of a CBS message according to the change history of sequence ID.

  Here, when the sequence ID is not used, the reception policy conversion unit corresponding to the sequence number type reception policy conversion unit 102 has a plurality of cells corresponding to the upstream lane from the point A on the XX expressway due to the correspondence with the map information and the like. Is calculated. Further, the reception policy conversion unit transmits a CBS message that only the UE that has passed through the calculated plurality of cells should accept the CBS message. On the other hand, when the sequence ID is used, the sequence number type reception policy converting unit 102 may generate a reception policy that accepts the CBS message only when the sequence ID increases. Therefore, the processing load of the reception policy conversion unit when the sequence ID is used is reduced as compared with the case where the sequence ID is not used.

  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 data reception processing in the communication terminal 40 and data distribution processing in the distribution device 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.

10 Distribution device 12 CBC
13 Reception Policy Conversion Unit 15 Message Transmission / Reception Unit 17 Reception Policy Creation Unit 20 Base Station 21 Cell 22 eNB
30 base station 31 cell 32 eNB
40 communication terminal 42 UE
44 cell ID acquisition unit 45 movement history holding unit 46 change characteristic determination unit 47 message reception unit 50 APL server 61 MME
70 CBC
80 APL server 90 MTC-IWF
100 CBC
101 Sequence Number Conjugated Message Transmission / Reception Unit 102 Sequence Number Type Reception Policy Conversion Unit 110 UE
111 Sequence Number Acquisition Unit 112 Sequence Number History Holding Unit 113 Sequence Number Change Characteristic Determination Unit

Claims (27)

A communication terminal that moves from a cell formed by a base station arranged on a mobile communication network to a cell formed by another base station arranged on the mobile communication network;
A delivery device for delivering data to the communication terminal,
The distribution device includes:
An instruction message instructing execution of a reception process according to a change characteristic of a serving cell accompanying movement between cells of the communication terminal is transmitted to the communication terminal,
The communication terminal is
When the instruction message is received, an information distribution system that executes the data reception process based on a movement history related to movement between cells of the device itself and a change characteristic of the serving cell. The communication terminal is
When the movement history of the own device satisfies the change characteristics of the serving cell included in the instruction message transmitted from the distribution device, the movement history of the own device is included in the instruction message transmitted from the distribution device. The information distribution system according to claim 1, wherein a reception process for accepting the data or discarding the data is changed according to a case where a change characteristic of the serving cell included is not satisfied. The movement history and the change characteristics of the serving cell are:
3. The information distribution system according to claim 1, wherein at least one of a change history of a cell where the communication terminal is located and a time required for movement accompanied by a change of the cell where the communication terminal is located is shown. The distribution device includes:
The information delivery system according to any one of claims 1 to 3, wherein a broadcast delivery message including the instruction message is transmitted to all communication terminals located in the cell. The distribution device includes:
The information delivery system according to claim 4, wherein the broadcast delivery message is transmitted using Cell Broadcast Service (CBS). For a plurality of cells arranged on a specific route, when a sequence number is given to the plurality of cells in order along the movement direction on the specific route,
The movement history and the change characteristics of the serving cell are:
The information distribution system according to claim 1, wherein an increase or decrease in a sequence number of a cell in which the communication terminal is located is indicated. The distribution device includes:
The information distribution system according to claim 6, wherein the sequence number is transmitted to the base station using a message different from the broadcast distribution message including the instruction message. The distribution device includes:
The information distribution system according to any one of claims 1 to 7, wherein a distribution policy notified from an application server is converted into information relating to a change characteristic of a serving cell accompanying movement of the communication terminal between cells. The communication terminal is
9. The device according to claim 1, wherein, when a cell that is in service with a movement is changed, a cell ID of the cell after the change is acquired, and the movement history is generated using the acquired cell ID. Information distribution system. A communication terminal that moves from a cell formed by a base station arranged on a mobile communication network to a cell formed by another base station arranged on the mobile communication network and receives data distributed from a distribution device. And
A receiving unit for receiving from the distribution device an instruction message for instructing execution of a reception process according to a change characteristic of a serving cell accompanying movement between cells;
A communication terminal comprising: a reception determination unit that executes a reception process of the data based on a movement history related to movement between cells of the device itself and a change characteristic of the serving cell. The reception determination unit
When the movement history of the own device satisfies the change characteristics of the serving cell included in the instruction message transmitted from the distribution device, the movement history of the own device is included in the instruction message transmitted from the distribution device. The communication terminal according to claim 10, wherein reception processing for accepting the data or discarding the data is changed according to a case where the change characteristics of the serving cell included are not satisfied. The movement history and the change characteristics of the serving cell are:
The communication terminal according to claim 10 or 11, which shows at least one of a change history of a cell that has been located and a time required for movement involving a change of the cell that has been located. For a plurality of cells arranged on a specific route, when a sequence number is given to the plurality of cells in order along the movement direction on the specific route,
The movement history and the change characteristics of the serving cell are:
The communication terminal according to any one of claims 10 to 12, which indicates an increase or decrease in a sequence number of a cell in which the communication terminal is located. A cell ID acquisition unit that acquires the cell ID of the cell after the change when the cell in the area is changed with movement;
The communication terminal according to claim 10, further comprising: a movement history generation unit that generates the movement history using the acquired cell ID. The receiver is
The communication terminal according to any one of claims 10 to 14, wherein the communication terminal receives the instruction message included in a broadcast delivery message transmitted to all communication terminals located in a cell. A distribution device for distributing data from a cell formed by a base station arranged on a mobile communication network to a communication terminal moving to a cell formed by another base station arranged on the mobile communication network,
A distribution apparatus comprising: a transmission unit that transmits to the communication terminal an instruction message instructing execution of reception processing according to a change characteristic of a serving cell associated with movement of the communication terminal between cells. The change characteristics of the serving cell are:
The distribution apparatus according to claim 16, wherein at least one of a change history of a cell where the communication terminal is located and a time required for movement accompanied by a change of the cell where the communication terminal is located are shown. The transmitter is
The distribution apparatus according to claim 16 or 17, wherein a broadcast distribution message including the instruction message is transmitted to all communication terminals located in the cell. The transmitter is
The distribution apparatus according to claim 18, wherein the broadcast distribution message is transmitted using Cell Broadcast Service (CBS). For a plurality of cells arranged on a specific route, when a sequence number is given to the plurality of cells in order along the movement direction on the specific route,
The change characteristics of the serving cell are:
The distribution apparatus according to any one of claims 16 to 19, which indicates an increase or decrease in a sequence number of a cell in which the communication terminal is located.   21. The conversion unit according to any one of claims 16 to 20, further comprising: a conversion unit that converts a distribution policy notified from the application server into information related to a change characteristic of a serving cell associated with movement of the communication terminal between cells. Distribution device. Data in a communication terminal that moves from a cell formed by a base station arranged on a mobile communication network to a cell formed by another base station arranged on the mobile communication network and receives data distributed from a distribution device A receiving method,
An instruction message instructing execution of reception processing according to the change characteristics of the serving cell accompanying movement between cells is received from the distribution device,
A data reception method, wherein the data reception process is executed based on a movement history related to movement between cells of the device itself and a change characteristic of the serving cell. The data reception process includes:
When the movement history of the own device satisfies the change characteristics of the serving cell included in the instruction message transmitted from the distribution device, the movement history of the own device is included in the instruction message transmitted from the distribution device. 23. The data reception method according to claim 22, wherein a reception process for accepting the data or discarding the data is changed according to a case where the change characteristics of the included cell included are not satisfied. A data distribution method in a distribution apparatus for distributing data from a cell formed by a base station arranged on a mobile communication network to a communication terminal moving to a cell formed by another base station arranged on the mobile communication network. And
A data distribution method for transmitting to the communication terminal an instruction message for instructing execution of a reception process according to a change characteristic of a serving cell associated with movement of the communication terminal between cells.   The transmission policy notified from the application server before transmitting the instruction message to the communication terminal is converted into information related to a change characteristic of a serving cell due to movement of the communication terminal between cells. Data delivery method. A computer that moves from a cell formed by a base station arranged on a mobile communication network to a cell formed by another base station arranged on the mobile communication network, and causes a computer that receives data distributed from a distribution device to execute A program,
Receiving from the distribution device an instruction message instructing execution of reception processing according to a change characteristic of a serving cell accompanying movement between cells;
A program that causes a computer to execute a step of performing the data reception process based on a movement history of movement of the own device between cells and a change characteristic of the serving cell. A program for causing a computer to distribute data from a cell formed by a base station arranged on a mobile communication network to a communication terminal moving to a cell formed by another base station arranged on the mobile communication network. ,
A program that causes a computer to execute a step of transmitting to the communication terminal an instruction message that instructs execution of reception processing according to a change characteristic of a serving cell that accompanies movement of the communication terminal between cells.

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