Mobile communication system, server, mobility management node, radio base station, and mobile terminal

The present invention relates to a mobile communication system that determines a control content based on an event content notified from a mobile communication device.

In recent years, there has been a demand for a method for optimizing the settings of each processing node that constitutes a mobile communication system. In 3GPP, a method of optimizing network processing according to the usage characteristics of a mobile communication terminal has been proposed (Non-Patent Document 1). For example, for a terminal fixedly installed in a specific place, network processing may be executed so as to reduce control processing related to movement. Specifically, the interval at which the terminal executes location registration may be set longer than a predetermined time. Further, when the mobile communication terminal is a terminal that allows delay, the network is used to transmit data to the mobile terminal by controlling the communication time to avoid the timing when the data transmission / reception amount peaks. The process may be executed.

Furthermore, in 3GPP (3rd Generation Partnership Project), a network system configuration as shown in FIG. 19 is being studied in order to execute the above-mentioned network processing (Non-Patent Document 2). The network systems in FIG. 19 are UE (User Equipment) 101, RAN (Radio Access Network) 102, SGSN (Serving GPRS Support Node) 103, GGSN (Gateway GPRS Support Node) 104, and HLR (Home Location Register). 105, MTC-IWF (Machine Type Communication-Inter Working Function) 106, CDF (Charging Data Function) 107, SMS-SC (Short Message Service-Service Center) 108, MTC Server 109, MTC It consists of Application110. To realize a method for optimizing network processing according to the usage characteristics of mobile communication terminals for UE101, RAN102, SGSN103, GGSN104, and HLR105 used in general mobile communication systems. A network system to add MTC-IW106, CDF107, SMS-SC108, MTC Server109, and MTC Application110 is under consideration.

<p num="0004"><nplcit num="1"><text>3GPP TS 22.368 V11.3.0 (2011-09) 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Service requirements for Machine-Type Communications (MTC); Stage 1 (Release 11)</text></nplcit><nplcit num="2"><text>3GPP TR 23.888 V1.5.0 (2011-10) 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; System Improvements for Machine-Type Communications; (Release 11)</text></nplcit></p>

<p num="0005"> However, as described above, the optimization of network processing is executed for mobile terminals having fixed usage characteristics. For example, whether or not a terminal is fixedly installed in a specific place or a terminal that allows delay is determined by using predetermined service information or terminal information of the terminal. Currently, in addition to the above-mentioned optimization of network processing, it is required to optimize network processing for mobile terminals whose usage characteristics change. Therefore, it is required to optimize network processing by using information other than service information that generally changes infrequently.</p><p num="0006"> In order to solve such a problem, the present invention is a mobile communication system, a detection server, a control device, a mobile communication device, and a network optimization method capable of performing optimization of network processing based on changes in usage characteristics. And to provide the program.</p>

<p num="0007"> The mobile communication system according to the first aspect of the present invention includes a detection server that detects a change in the characteristics of the mobile communication device based on an event notification transmitted from the mobile communication device, and the mobile communication detected by the detection server. Based on the change in the characteristics of the device, the control content related to the mobile communication device is determined, and the determined control content is used for data transfer processing between the mobile communication device and another mobile communication device or control processing related to the data transfer. It is provided with a control device to be set in the processing node to be executed.</p><p num="0008"> The detection server according to the second aspect of the present invention has a detection unit that detects a characteristic change of the mobile communication device based on an event notification transmitted from the mobile communication device, and the mobile communication device that detects the detected characteristic change. The control content related to the mobile communication device is determined based on the change in the characteristics of the mobile communication device, and the determined control content is executed for data transfer processing between the mobile communication device and another mobile communication device or control processing related to the data transfer. It is provided with a notification unit for notifying the control device set in the processing node.</p><p num="0009"> The control device according to the third aspect of the present invention receives the characteristic change of the mobile communication device detected based on the event notification transmitted from the mobile communication device, and relates to the mobile communication device based on the characteristic change. A control unit that determines the control content, and a notification unit that notifies the processing node that executes the data transfer process between the mobile communication device and another mobile communication device or the control process related to the data transfer of the determined control content. , Is provided.</p><p num="0010"> The mobile communication device according to the fourth aspect of the present invention has a detection unit that detects a characteristic change of the mobile communication device based on an event notification transmitted from the mobile communication device, and the mobile communication that detects the detected characteristic change. The control content related to the mobile communication device is determined based on the characteristic change of the device, and the determined control content is executed as a data transfer process between the mobile communication device and another mobile communication device or a control process related to the data transfer. It is provided with a notification unit for notifying the control device to be set in the processing node to be processed.</p><p num="0011"> The network optimization method according to the fifth aspect of the present invention detects a change in the characteristics of the mobile communication device based on an event notification transmitted from the mobile communication device, and responds to the detected change in the characteristics of the mobile communication device. Based on this, the control content related to the mobile communication device is determined, and the determined control content is transferred to a processing node that executes data transfer processing between the mobile communication device and another mobile communication device or control processing related to the data transfer. It is to be set.</p><p num="0012"> The program according to the sixth aspect of the present invention has a step of detecting a characteristic change of the mobile communication device based on an event notification transmitted from the mobile communication device, and the detected characteristic change of the detected characteristic change of the mobile communication device. The control content related to the mobile communication device is determined based on the change, and the determined control content is transferred to a processing node that executes data transfer processing between the mobile communication device and another mobile communication device or control processing related to the data transfer. It causes the computer to execute the step of notifying the control device to be set.</p>

<p num="0013"> INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a mobile communication system, a detection server, a control device, a mobile communication device, and a network optimization method capable of performing optimization of network processing based on changes in usage characteristics.</p>

<figref num="1">It is a block diagram of the mobile communication system which concerns on Embodiment 1. FIG.</figref><figref num="2">It is a block diagram of the detection server which concerns on Embodiment 1. FIG.</figref><figref num="3">It is a block diagram of the characteristic change detection DB which concerns on Embodiment 1. FIG.</figref><figref num="4">It is a block diagram of the control device which concerns on Embodiment 1. FIG.</figref><figref num="5">It is a block diagram of the NW control policy DB which concerns on Embodiment 1. FIG.</figref><figref num="6">It is a sequence which shows the flow of the registration process of the mobile terminal which concerns on Embodiment 1.</figref><figref num="7">It is a sequence which shows the flow of the setting process of the NW control policy which concerns on Embodiment 1.</figref><figref num="8">It is a block diagram of the detection server which concerns on Embodiment 2.</figref><figref num="9">It is a block diagram of the detection item DB for each terminal which concerns on Embodiment 2. FIG.</figref><figref num="10">It is a sequence which shows the flow of the registration process of the mobile terminal which concerns on Embodiment 2.</figref><figref num="11">It is a figure which shows the flow of the detection process of the characteristic change in the detection server which concerns on Embodiment 2.</figref><figref num="12">It is a block diagram of the mobile communication system which concerns on Embodiment 3. FIG.</figref><figref num="13">It is a block diagram of the movement management node which concerns on Embodiment 3.</figref><figref num="14">It is a sequence which shows the flow of the setting process of the NW control policy which concerns on Embodiment 3.</figref><figref num="15">It is a block diagram of the mobile communication system which concerns on Embodiment 4. FIG.</figref><figref num="16">It is a block diagram of the mobile communication system which concerns on Embodiment 5.</figref><figref num="17">It is a block diagram of the mobile terminal which concerns on Embodiment 5.</figref><figref num="18">It is a sequence which shows the flow of the setting process of the NW control policy which concerns on Embodiment 5.</figref><figref num="19">This is the network system configuration being considered in 3GPP.</figref>

(Embodiment 1) Hereinafter, embodiments of the present invention will be described with reference to the drawings. A configuration example of the mobile communication system according to the first embodiment of the present invention will be described with reference to FIG. The mobile communication system of this figure includes a detection server 40, a control device 30, and a processing node 20. The mobile terminal 10 communicates with another mobile terminal, a server device, or the like via a mobile communication system. Wireless communication is used for communication between the mobile terminal 10 and the mobile communication system. The processing node 20 may be, for example, a radio base station 21 or a mobile management node 22. The mobile management node 22 and the control device 30 constitute a core network 50 managed by a mobile communication operator.

The mobile terminal 10 may be a mobile phone terminal, a smartphone terminal, a notebook-type personal computer, or the like, or may be a means of transportation in which a communication function is installed in a car, a train, or the like, and a user such as a watch may use the mobile terminal 10. The machine to be worn may be equipped with a communication function. Alternatively, the mobile terminal 10 may be a device that moves less frequently, such as a vending machine equipped with a communication function.

The detection server 40 detects a change in the characteristics of the mobile communication device based on the event notification transmitted from the mobile terminal 10. The detection server 40 may be arranged in the core network 50 managed by the mobile communication operator, or may be arranged outside the core network 50 to be managed by a third party other than the mobile communication operator.

The event notification may be, for example, operation information of the mobile terminal 10 by the user, sensor information detected by the mobile terminal 10, or the like. For example, when the mobile terminal 10 is a car, the operation information may be information indicating that the user has turned on or off the engine of the car. Alternatively, the operation information may be information indicating that the operation of the car navigation system mounted on the automobile has been started or stopped, or information indicating a position set as the destination. Alternatively, the operation information may be information indicating that the user has activated the video viewing software or the like installed in the mobile phone terminal. The sensor information is information obtained by detecting ambient environment information, and may be, for example, information on the ambient temperature when a temperature sensor is mounted on the mobile phone terminal. Further, the sensor information may be, for example, speed information of the mobile phone when the acceleration sensor is mounted on the mobile phone terminal.

The characteristic change may be, for example, a change in the behavior of the mobile terminal 10 or a change in the communication status of the mobile terminal 10. For example, when the mobile terminal 10 is a car, the detection server 40 detects a behavioral change that the movement of the car has stopped when the event notification transmitted from the mobile terminal 10 notifies that the engine has been turned off. You may. Further, the detection server 40 may detect a behavioral change that the vehicle has started moving when notified that the engine has been turned on. When the event that the user has activated the video viewing software of the mobile phone terminal is notified, the detection server 40 may detect a change in the communication status that the user will execute broadband communication from now on. Further, the detection server 40 may detect a change in the communication status that the user will execute narrowband communication from now on when an event that the user has performed an operation to start a voice call of the mobile phone terminal is notified. ..

As described above, the detection server 40 receives the event notification and extracts the characteristic change of the mobile terminal 10 corresponding to the received event notification.

The control device 30 determines the control content of the mobile terminal 10 based on the characteristic change of the mobile terminal 10 detected by the detection server 40, and transfers the determined control content between the mobile terminal 10 and another mobile terminal or the like. Set to the processing node 20 that executes the data transfer processing or the control processing related to the data transfer in.

The control content in the mobile terminal 10 may be, for example, change control of the paging area of the mobile terminal 10, control of allocation of the communication band to the mobile terminal 10, and the like. For example, when the detection server 40 detects a characteristic change that the mobile terminal 10 has stopped, the control device 30 may control the paging area of the mobile terminal 10 to be narrowed to the cell size. The paging area is, for example, an area for calling the mobile terminal 10 when executing an incoming call process for the mobile terminal 10. When the mobile terminal 10 is stopped, the calling range can be narrowed, so that the paging area can be narrowed to the cell area configured by the base station in which the mobile terminal 10 is located. Further, when the characteristic change that the movement of the mobile terminal 10 has started is detected, the control device 30 may control the paging area of the mobile terminal 10 to be expanded in prefecture units in order to reliably call the mobile terminal 10. Good.

As another example, when the detection server 40 detects a characteristic change in which the mobile terminal 10 executes wideband communication, the control device 30 controls so as to secure, for example, 10 Mbps as the bandwidth allocated to the mobile terminal 10. You may. Further, when the detection server 40 detects a characteristic change in which the mobile terminal 10 executes narrow-band communication, the control device 30 may control to secure, for example, 1 Mbps as the bandwidth allocated to the mobile terminal 10. Good.

The processing node that executes data transfer processing between the mobile terminal 10 and another mobile terminal may be, for example, a radio base station 21 or an exchange (not shown). The processing node that executes the control processing related to data transfer between the mobile terminal 10 and another mobile terminal is, for example, a mobility management node (MME) 22 that executes the movement control of the mobile terminal 10. It may be a subscriber information server (HLR, HSS: Home Subscriber Server) or the like.

As described above, by using the mobile communication system in FIG. 1, the characteristic change of the mobile terminal 10 is changed in the detection server 40 connected to the core network 50, triggered by the event notification transmitted from the mobile terminal 10. Can be detected. Further, the control device 30 arranged in the core network 50 can change the contents set in the processing node 20 for each mobile terminal according to the detected characteristic change. As a result, it is possible to set the network according to the characteristics of each mobile terminal, and it is possible to appropriately allocate network resources, wireless resources, and the like.

Subsequently, a configuration example of the detection server 40 according to the first embodiment of the present invention will be described with reference to FIG. The detection server 40 includes an interface 41, a detection unit 42, a characteristic change detection DB 43, and a notification unit 44.

The interface 41 sends and receives data to and from the control device 30. Although the detection server 40 is configured to include one interface 41 in this figure, it may be provided with a plurality of interfaces for transmitting / receiving data to / from the radio base station 21 or the mobile management node 22.

The detection unit 42 receives the event notification transmitted from the mobile terminal 10 via the interface 41. The detection unit 42 uses the characteristic change detection database (DB) 43 to extract the characteristic change corresponding to the received event notification. Here, a configuration example of the characteristic change detection DB43 will be described with reference to FIG.

The characteristic change detection DB43 in FIG. 3 manages the information related to the notified event content in association with the information related to the characteristic change content. Further, the characteristic change contents are classified into a characteristic type and a characteristic content corresponding to the characteristic type. For example, the event content includes engine stop, engine start, navigation start, navigation stop, multimedia use start, and multimedia use end. The event content for stopping the engine is associated with the movement as the characteristic type and the characteristic change content for stopping as the content. That is, when the mobile terminal 10 notifies the event that the engine has been stopped, the detection unit 42 detects that the movement of the mobile terminal 10 has stopped. When the mobile terminal 10 notifies the event that the engine has been started, the detection unit 42 detects that the mobile terminal 10 has started moving.

Further, when the mobile terminal 10 notifies the event that the navigation has started, the detection unit 42 detects that the communication interval such as the information distribution interval to the navigation is 5 minutes. When the mobile terminal 10 notifies the event that the navigation has been completed, the detection unit 42 detects that the communication interval such as the information distribution interval to the navigation is one hour. Further, when the mobile terminal 10 notifies the event that the multimedia use has started, the detection unit 42 detects that the mobile terminal 10 uses a communication band of a maximum of 10 Mbps. When the mobile terminal 10 notifies the event that the multimedia use has ended, the detection unit 42 detects that the mobile terminal 10 uses a communication band of a maximum of 1 Mbps.

Returning to FIG. 2, when the detection unit 42 extracts the characteristic change corresponding to the event content notified from the mobile terminal 10, the extracted characteristic change is output to the notification unit 44.

The notification unit 44 outputs the characteristic change output from the detection unit 42 to the control device 30 via the interface 41.

Subsequently, a configuration example of the control device 30 according to the first embodiment of the present invention will be described with reference to FIG. The control device 30 includes interfaces 31 and 32, a control unit 33, a NW (Network) control policy DB 34, and a notification unit 35.

The interface 31 sends and receives data to and from the detection server 40. The interface 32 sends and receives data to and from the processing node 20. When data is transmitted / received using different interfaces from the radio base station 21 and the mobile management node 22, a different interface may be used for each opposite device that transmits / receives data.

The control unit 33 receives the information regarding the characteristic change of the mobile terminal 10 output from the detection server 40 via the interface 31. Further, the control unit 33 may output the event notification received from the mobile terminal 10 to the detection server 40 via the interface 32 via the interface 32. The control unit 33 uses the NW control policy DB34 to extract the NW control policy corresponding to the received characteristic change. Here, a configuration example of the NW control policy DB34 will be described with reference to FIG.

The NW control policy DB34 in FIG. 5 manages the information related to the characteristic change contents in association with the information related to the NW control policy. The information on the characteristic change content is the same as the characteristic change content in the characteristic change detection DB43. Information on the NW control policy is classified into a control type and a control content corresponding to the control type.

For example, when the detection server 40 notifies the information that the movement is moved as the characteristic type and the movement is stopped as the characteristic change content, the control unit 33 manages the size of the paging area related to the mobile terminal 10 by one base station. In addition to determining the NW control policy of setting to, the location registration interval of the mobile terminal 10 may be determined to be every 3 hours. Further, when the detection server 40 notifies the information that the movement is started as the characteristic type and the movement is started as the characteristic change content, the control unit 33 sets the size of the paging area related to the mobile terminal 10 to the size of the prefecture unit. In addition to determining the control policy, the location registration interval of the mobile terminal 10 may be determined to be every 10 minutes.

That is, when the mobile terminal 10 stops moving, the moving range becomes narrower, so that the paging area can also be set narrower. As a result, only the cell area composed of one base station can be used as the paging area. On the other hand, when the mobile terminal 10 starts moving, the moving range becomes wider. Therefore, it is necessary to widen the paging area in order to reliably call the mobile terminal 10. As a result, for example, all cell areas composed of base stations in the same prefecture may be used as paging areas. Also, if the mobile terminal 10 stops moving, the mobile terminal 10 is likely to be in the same location registration area. Therefore, if the location registration interval is set longer and the mobile terminal 10 starts moving, it will move. Since the terminal 10 is likely to be in a different location registration area with the passage of time, the location registration interval may be set short.

Further, when the detection server 40 notifies the communication interval as the characteristic type and the information of 5 minutes as the characteristic change content, the control unit 33 sets the interval at which the mobile terminal 10 operates in the normal power mode to 5 minutes. At the same time, the intermittent reception interval may be set to 0.128s. The mobile terminal 10 operates in the power saving mode except when operating in the normal power mode. When the detection server 40 notifies the communication interval as the characteristic type and the information of 1 hour as the characteristic change content, the control unit 33 sets the interval at which the mobile terminal 10 operates in the normal power mode as 1 hour and intermittently. The reception interval may be set to 128s.

Further, when the detection server 40 notifies the information that the communication band is the characteristic type and the maximum permissible band is 10 Mbps as the characteristic change content, the control unit 33 may set the maximum permissible band allocated to the mobile terminal 10 to 10 Mbps. When the detection server 40 notifies the information that the communication band is the characteristic type and the maximum permissible band is 1 Mbps as the characteristic change content, the control unit 33 may set the maximum permissible band allocated to the mobile terminal 10 to 1 Mbps.

Returning to FIG. 4, the NW control policy extracted using the NW control policy DB34 is output to the notification unit 35. The notification unit 35 outputs the NW control policy to the processing node 20 via the interface 32.

Subsequently, the flow of the registration process of the mobile terminal to be monitored for the characteristic change in the detection server according to the first embodiment of the present invention will be described with reference to FIG. First, the mobile terminal 10 makes a connection request to the wireless base station 21 (S11). For example, the connection request is executed when the power is turned on in the mobile terminal 10. The message regarding the connection request also includes the terminal identifier of the mobile terminal 10. The terminal identifier may be, for example, an aircraft number, a telephone number, a MAC (Media Access Control) address, an IP (Internet Protocol) address, or the like assigned to the mobile terminal 10.

Next, when the connection request is executed from the mobile terminal 10, NW connection processing is performed between the mobile terminal 10, the radio base station 21, and the mobile management node 22 (S12). The NW connection process is to enable communication execution between the mobile terminal 10 and the wireless base station 21, and is a general process in mobile communication. Therefore, detailed description thereof will be omitted.

Next, the mobile management node 22 transmits a message regarding the connection request transmitted from the mobile terminal 10 to the control device 30 (S13). The message regarding the connection request sent from the mobile management node 22 to the control device 30 also includes the terminal identifier of the mobile terminal 10.

Next, the control device 30 transmits a characteristic change monitoring request message to the detection server 40 in order to make the mobile terminal 10 a monitoring target terminal for the characteristic change in the detection server 40 (S14). Further, the control device 30 transmits the characteristic change monitoring request message including the terminal identifier of the mobile terminal 10 in order to clarify the mobile terminal 10 requested as the monitoring target terminal.

Next, the detection server 40 starts monitoring the characteristic change of the mobile terminal 10 corresponding to the terminal identifier set in the characteristic change monitoring request message (S15).

Subsequently, the flow of the setting process of the NW control policy according to the first embodiment of the present invention will be described with reference to FIG. 7. The NW control policy setting process is executed after the mobile terminal registration process in FIG.

First, the mobile terminal 10 notifies the detection server 40 of an event (S21). The event notification includes the terminal identifier of the mobile terminal 10 and the content of the event that has occurred. Next, the detection server 40 detects a characteristic change corresponding to the notified event content with respect to the mobile terminal 10 (S22). Subsequently, the detection server 40 notifies the control device 30 of the detected characteristic change (S23). The message notifying the characteristic change notified from the detection server 40 to the control device 30 also includes the terminal identifier of the mobile terminal 10.

Next, the control device 30 determines the content of the NW control policy corresponding to the characteristic change notified from the detection server 40 (S24). Next, the control device 30 notifies the movement management node 22 of the determined NW control policy (S25). The NW control policy and the terminal identifier of the mobile terminal 10 are also notified from the control device 30 to the mobile management node 22.

Next, the mobile management node 22 changes the NW control policy for the mobile terminal 10 to the NW control policy notified by the control device 30 (S26).

Here, in step S25, the NW control policy is notified to the mobile management node 22, but the NW control policy may be notified to the radio base station 21. For example, the control device 30 notifies the movement management node 22 of the NW control policy when the control type is the NW control policy related to the paging area, and when the control type is the NW control policy related to the maximum allowable band, the control device 30 notifies the movement management node 22 of the NW control policy. The notification destination may be determined according to the NW control policy to be notified, such as notifying the radio base station 21. In addition to the radio base station 21 and the mobile management node 22, the control device 30 may notify other devices such as exchanges constituting the core network of the NW control policy to be set.

As described above, by using the mobile communication system according to the first embodiment of the present invention, the detection server 40 can receive information regarding the event content from the mobile terminal 10. The detection server 40 can detect the characteristic change based on the information about the event content, and the control device 30 can determine the NW control policy based on the characteristic change. Therefore, the mobile communication system can set the optimum NW control policy according to the characteristic change in the mobile terminal 10.

Further, in the first embodiment of the present invention, an example in which the detection server detects the characteristic change based on the event content transmitted from the mobile terminal 10 has been described, but the detection server 40 transmits from the mobile terminal 10. The content of the data to be generated may be analyzed to detect a change in characteristics. As the data transmitted from the mobile terminal 10, for example, word information described in a document such as an e-mail may be used to detect a characteristic change. Alternatively, the characteristic change may be detected by analyzing video data, audio data, or the like.

Further, the detection server 40, the control device 30, and the processing node 20 may be associated with the device examined in 3GPP of FIG. 19 as follows. For example, the detection server 40 corresponds to MTC Application110, and the control device 30 includes MTC-IWF106, CDF / CGF (CDF / Charging Gateway Function) 107, SMS-SC / IP-SM-GW108, and MTC Server109. Corresponding, the processing node may correspond to SGSN / MME103, GGSN / S-GW + P-GW104, and HLR / HSS105.

(Embodiment 2) Subsequently, a configuration example of the detection server 40 according to the second embodiment of the present invention will be described with reference to FIG. The detection server 40 includes an interface 41, a detection unit 42, a characteristic change detection DB 43, a notification unit 44, and a terminal-specific detection item DB 45. Since the components other than the terminal-specific detection item DB45 are the same as in FIG. 2, detailed description will be omitted.

The terminal-specific detection item DB45 manages items related to changes in the characteristics of the mobile terminal to be detected by the detection server 40 for each mobile terminal. Here, a configuration example of the terminal-specific detection item DB45 according to the second embodiment of the present invention will be described with reference to FIG.

The terminal-specific detection item DB45 manages the terminal identifier and the characteristic type to be detected in association with each other. The terminal identifier may be, for example, an aircraft number, a telephone number, a MAC address, an IP address, or the like assigned to each mobile terminal. In this figure, for example, terminal identifiers identified as terminals 1 to 3 are managed. The characteristic types to be detected are the same as the characteristic types described in FIGS. 3 and 5.

In this figure, movement, communication interval, and communication band are associated with the terminal 1 as characteristic types. Movement is associated with the terminal 2 as a characteristic type, and communication interval and communication band are associated with the terminal 3 as a characteristic type. That is, for example, for the terminal 2, only the characteristic change related to movement is detected. Therefore, in the example of FIG. 3, when the event content of stopping the engine or starting the engine is notified, the terminal 2 detects the characteristic change and executes the process, but starts and ends the navigation and uses multimedia. Even if the event contents such as start and end of use are notified, the characteristic change detection process is not executed.

Subsequently, the flow of the registration process of the mobile terminal to be monitored for the characteristic change in the detection server according to the second embodiment of the present invention will be described with reference to FIG. Since steps S31 to S33 and steps S35 are the same as steps S11 to 13 and step S15 in FIG. 6, description thereof will be omitted.

In step S34, the control device 30 notifies the detection server 40 of the characteristic change monitoring request message. The characteristic change monitoring request message includes information on the terminal identifier of the mobile terminal 10 and the characteristic type to be detected.

In FIG. 10, an example of notifying information on the characteristic type to be detected from the mobile terminal 10 is shown, but information on the characteristic type to be detected is transmitted from the subscriber server that manages the subscriber information of a plurality of mobile terminals. You may get it. In that case, information on the characteristic type to be detected for each mobile terminal is registered in the subscriber server in advance.

Subsequently, the flow of the characteristic change detection process in the detection server 40 according to the second embodiment of the present invention will be described with reference to FIG. First, the detection unit 42 receives an event notification from the mobile terminal 10 (S41). Next, the detection unit 42 confirms the terminal identifier included in the event notification, and identifies the mobile terminal that is the source of the event notification (S42). Next, the detection unit 42 determines whether or not the event content is an event related to the characteristic type managed in association with the identified mobile terminal in the terminal-specific detection item DB45 (S43). When it is determined that the event content notified from the mobile terminal 10 is an event related to the characteristic type managed in the terminal-specific detection item DB 45, the detection unit 42 uses the characteristic change detection DB 43 to change the characteristics of the mobile terminal 10. Is detected (S44). When it is determined that the event content notified from the mobile terminal 10 is not an event related to the characteristic type managed in the terminal-specific detection item DB45, the detection unit 42 ends the process. Here, when the process is terminated, the detection server 40 may notify the control device 30 that the process is terminated. Alternatively, if it is determined that the event content notified from the mobile terminal 10 is not an event related to the characteristic type managed in the terminal-specific detection item DB45, the mobile terminal 10 is notified of the characteristic change related to the event content. You may inquire whether or not to monitor.

The processing after detecting the characteristic change is the same as the processing after step S23 in FIG. 7.

As described above, by using the mobile communication system according to the second embodiment of the present invention, the detection server 40 can register the characteristic change to be detected in advance. For example, when a vending machine or the like that moves infrequently is used as a mobile terminal, it is not necessary to detect a change in characteristics related to movement. In such a case, the movement is not registered as the characteristic type to be detected. By doing so, the processing load on the detection process of the detection server 40 can be reduced.

(Embodiment 3) Subsequently, a configuration example of the mobile communication system according to the third embodiment of the present invention will be described. In the first and second embodiments, the control device 30 and the processing node 20 are described as physically different devices. Here, in the third embodiment, the function executed by the control device 30 may be incorporated in the movement management node 22.

A configuration example of the mobile communication system according to the third embodiment of the present invention will be described with reference to FIG. Here, the differences between FIGS. 1 and 12 will be mainly described. The mobile communication system in FIG. 12 includes a radio base station 21, a detection server 40, and a mobile management node 60.

Subsequently, a configuration example of the mobile management node 60 according to the third embodiment of the present invention will be described with reference to FIG. The movement management node 60 includes interfaces 61 and 62, a control unit 63, a NW control policy DB64, a notification unit 65, and a NW connection processing control unit 66.

The interface 61 sends and receives data to and from the detection server 40. The interface 62 sends / receives data to / from the movement management node 22.

The control unit 63 receives the information regarding the characteristic change of the mobile terminal 10 output from the detection server 40 via the interface 61. Further, the control unit 63 may output the event notification received from the mobile terminal 10 to the detection server 40 via the interface 62 via the interface 62. The control unit 63 uses the NW control policy DB64 to extract the NW control policy corresponding to the received characteristic change. Since the NW control policy DB64 has the same configuration as that shown in FIG. 5, detailed description thereof will be omitted.

Further, the control unit 63 applies the NW control policy extracted from the NW control policy DB64, and performs a process of setting the NW control policy. Alternatively, the control unit 63 may notify the radio base station 21 of the NW control policy extracted from the NW control policy DB 64 via the notification unit 65 and the interface 62.

When the connection request is executed from the mobile terminal 10, the NW connection processing control unit 66 performs NW connection processing control to enable communication execution between the mobile terminal 10 and the wireless base station 21. Since the NW connection process is a general process in mobile communication, detailed description thereof will be omitted.

Subsequently, the flow of the setting process of the NW control policy according to the third embodiment of the present invention will be described with reference to FIG. Since steps S51 to S53 in FIG. 14 are the same as steps S21 to S23 in FIG. 7, detailed description thereof will be omitted.

Next, the movement management node 60 determines the content of the NW control policy corresponding to the characteristic change notified from the detection server 40 (S54). Next, the movement management node 60 changes the currently set NW control policy to the NW control policy determined in step S54 (S55).

As described above, the movement management node 60 according to the third embodiment of the present invention includes the function of the control device 30 in FIG. Therefore, the interface between the control device 30 and the movement management node 22 in FIG. 1 becomes unnecessary. Further, since data transmission / reception between the control device 30 and the mobile management node 22 in FIG. 7 becomes unnecessary, the signal amount of the entire mobile communication system can be reduced.

(Embodiment 4) Subsequently, a configuration example of the mobile communication system according to the fourth embodiment of the present invention will be described with reference to FIG. The mobile communication system in FIG. 15 defines an API between the control device 30 and the detection server 40, and executes data communication between the control device 30 and the detection server 40. The detection server 40 executes data processing by using the function provided in the API.

The mobile communication operator that manages the mobile communication system provides an API between the control device 30 and the detection server 40, so that the detection server 40 is managed by a third party other than the mobile communication operator, and the core network 50 It is possible to place it outside the. Therefore, it is possible for a third party to operate and manage the detection server 40.

(Embodiment 5) Subsequently, a configuration example of the mobile communication system according to the fifth embodiment of the present invention will be described with reference to FIG. In the fifth embodiment, an example in which the function executed by the detection server 40 is incorporated in the mobile terminal 70 will be described. The mobile communication system of FIG. 16 includes a control device 30, a radio base station 21, and a mobile management node 22. The mobile terminal 70 communicates with other mobile terminals, server devices, and the like via a mobile communication system. The mobile communication system of FIG. 16 differs from FIG. 1 in that there is no detection server 40.

Subsequently, a configuration example of the mobile terminal 70 according to the fifth embodiment of the present invention will be described with reference to FIG. The mobile terminal 70 includes an interface 71, a detection unit 72, a characteristic change detection DB 73, and a notification unit 74.

The detection unit 72 detects the event information. As described above, the event information may be operation information of a user who operates the mobile terminal 70, sensor information detected by the mobile terminal 70, or the like. The detection unit 72 uses the characteristic change detection DB73 to extract the characteristic change corresponding to the detected event information. Since the configuration of the characteristic change detection DB73 is the same as that shown in FIG. 3, detailed description thereof will be omitted.

When the detection unit 72 extracts the characteristic change corresponding to the event information detected by the detection unit 72, the detection unit 72 outputs the extracted characteristic change to the notification unit 74.

The notification unit 74 outputs the characteristic change output from the detection unit 72 to the control device 30 via the interface 71.

Subsequently, the flow of the setting process of the NW control policy according to the fifth embodiment of the present invention will be described with reference to FIG. First, the mobile terminal 70 detects event information (S61). Next, the mobile terminal 70 detects a characteristic change corresponding to the detected event content (S62). Next, the mobile terminal 70 notifies the control device 30 of the detected characteristic change (63). The message notifying the characteristic change notified from the mobile terminal 70 to the control device 30 also includes the terminal identifier of the mobile terminal 70.

Since steps S64 to S66 are the same as steps S24 to S26 in FIG. 7, detailed description thereof will be omitted.

As described above, the mobile terminal 70 according to the fifth embodiment of the present invention includes a function realized by the detection server. Therefore, it is possible to omit the data communication between the mobile terminal 70 and the detection server, and it is possible to reduce the signal amount of the entire mobile communication system.

In the above-described embodiment, the present invention has been described as a hardware configuration, but the present invention is not limited thereto. INDUSTRIAL APPLICABILITY The present invention can also realize the processing of the detection server and the control device in FIG. 7 and the processing shown in FIG. 11 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 medium. Non-transient computer-readable media include various types of tangible storage media. Examples of non-temporary computer-readable media include magnetic recording media (eg flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg magneto-optical disks), CD-ROMs (Read Only Memory), CD-Rs, Includes CD-R / W, semiconductor memory (eg, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)). The program is also a transitory computer readable of various types. It may be supplied to the computer by medium). Examples of temporary computer-readable media include electrical, optical, 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.

The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the spirit.

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

This application claims priority on the basis of Japanese Application Japanese Patent Application No. 2012-006345 filed on 16 January 2012 and incorporates all of its disclosures herein.

10 Mobile terminal 20 processing node 21 wireless base station 22 Mobility management node 30 Control unit 31 interface 32 interface 33 Control unit 34 NW Control Policy DB 35 Notification section 40 Detection server 41 interface 42 Detector 43 Characteristic change detection DB 44 Notification section 45 Detection item DB for each terminal 50 core network 60 Mobility Management Node 61 interface 62 interface 63 Control unit 64 NW Control Policy DB 65 Notification section 66 NW connection processing control unit 70 mobile terminal 71 interface 72 Detector 73 Characteristic change detection DB 74 Notification section