JP2017212519A - Communication system, server, communication method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress monopoly of traffic by a specific user apparatus, when multiple user apparatus use a network while sharing.SOLUTION: A communication deice 11 and a server 12 are interconnected via a network 13. Request reception unit 21 of the communication deice 110 receives a communication request from a user apparatus. A transmission unit 22 transmits a first packet containing information for specifying the user apparatus 14 that transmitted the communication request to the server 12. A storage unit 33 stores the achievement and upper limit of traffic of the user apparatus 14 in association therewith. A limit determination unit 31 of the server 12 determines whether or not the achievement of traffic of the user apparatus 14 that transmitted the communication request exceeds the upper limit, with reference to information for specifying the user apparatus contained in the first packet, and the storage unit 33. When a determination was made that the upper limit has been exceeded, a communication restriction unit 32 restricts communication in the network 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a communication system, a communication method, and a program, and more particularly, to a communication system in which a plurality of user devices share a network and use the communication method and program in such a communication system.

  The present invention also relates to a server used in the communication system.

  In recent years, virtual mobile communication operators (hereinafter also referred to as MVNOs (Mobile Virtual Network Operators)) have emerged, and MVNOs whose usage fees are less than 1000 yen per month are not uncommon. In addition, the spread rate of LTE (Long Term Evolution) is increasing, and LTE is widely spread not only in downtown areas such as around stations but also in residential areas. Under such circumstances, not only for mobile devices but also for Internet contracts used at home, there is a demand for switching from a high fixed line to a cheap MVNO.

Japanese Patent Laying-Open No. 2015-185903

  In general, MVNO can provide services to users at low cost because there is no cost for preparation and maintenance of mobile network equipment. On the other hand, the line that MVNO can provide is narrower than that of mobile communication operators (hereinafter also referred to as MNO (Mobile Network Operator)). There are many.

  When the line provided by MVNO is used alone, it is only necessary to pay attention to its own usage amount, and even if there is an upper limit on the communication amount, no major problem occurs. However, considering the case where a fixed line used at home or the like is replaced with a line provided by MVNO, in many cases, one line is shared and used by a plurality of users. In that case, if someone in the family performs a large amount of data communication, it may become unavailable when other family members want to use it. Or at the end of the month, the communication amount may be depleted and the communication speed may become extremely slow due to communication restrictions.

  When communication restriction is applied, a situation where even browsing is not possible occurs, and the user cannot comfortably use the network. In order to prevent such a situation from occurring, it is necessary to grasp the communication amount of each family member sharing one line and to use the communication line (network) in a planned manner. However, it is difficult to do the work in daily life.

  Here, Patent Document 1 describes a communication apparatus that solves a decrease in satisfaction with a user's service when a maximum communication amount capable of performing high-speed communication is determined. The communication device described in Patent Literature 1 monitors the communication amount, and when the communication amount reaches the upper limit, the communication with a high communication amount restriction (LTE) to the communication with no low communication amount restriction (WiMAX (Worldwide Interoperability for Microwave Access)). In Patent Literature 1, since switching from LTE to WiMAX is performed according to the traffic, user convenience can be improved.

  However, the communication device described in Patent Document 1 needs to support not only LTE but also the WiMAX communication method. In addition, the user needs contracts for both LTE and WiMAX, and the communication device described in the cited document 1 cannot be easily introduced.

  In view of the above circumstances, an object of the present invention is to provide a communication system capable of suppressing a specific user device from monopolizing a communication amount when a plurality of user devices share a network.

  In order to achieve the above object, the present invention includes a communication device capable of communicating with a plurality of user devices, and a server connected to the communication device via a network. A request receiving unit that receives a communication request from the user device, and a first transmission unit that transmits a first packet including information for specifying the user device that has transmitted the communication request to the server, When the server receives the first packet from the communication device, the server identifies information for identifying the user device included in the first packet, and records the amount of communication of the user device in association with the user device. And a storage unit that stores the upper limit, a limit determination unit that determines whether or not the actual amount of communication of the user device that has transmitted the communication request exceeds the upper limit, and the upper limit is exceeded by the limit determination unit And If it is the cross-sectional provides a communication system and a communication limiting unit for limiting the communication to the user equipment that transmitted the communication request in the network.

  The present invention is also a server connected via a network to a communication device capable of communicating with a plurality of user devices, for specifying the user device that has transmitted a communication request to the communication device. When the packet including the information is received from the communication device, the information for specifying the user device included in the packet, and the storage and the upper limit of the communication amount of the user device are stored in association with the user device A limit determination unit that determines whether or not the performance of the communication amount of the user device that has transmitted the communication request exceeds an upper limit, and the limit determination unit determines that the upper limit is exceeded And a communication restriction unit for restricting communication to the user equipment that has transmitted the communication request in the network.

  The present invention is a communication method in a communication system including a communication device capable of communicating with a plurality of user devices and a server connected to the communication device via a network, wherein the server includes the communication device. Receiving from the communication device a packet including information for identifying a user device that has transmitted a communication request to the device; and the server identifying information for identifying a user device included in the packet; Reference is made to a storage unit that stores the actual and upper limit of the traffic volume of the user device in association with the user device, and determines whether the actual traffic volume of the user device that has transmitted the communication request exceeds the upper limit. And when determining that the upper limit has been exceeded in the determining step, the server sends the communication request to the user equipment that has transmitted the communication request in the network. Providing a communication direction and a step of limiting the communication.

  The present invention includes information for identifying a user device that has transmitted a communication request to the communication device in a server connected via a network to a communication device capable of communicating with a plurality of user devices. When a packet is received from the communication device, a storage unit that stores information for specifying a user device included in the packet, and a record and an upper limit of the communication amount of the user device in association with the user device; If the server determines that the communication volume of the user equipment that has transmitted the communication request exceeds the upper limit in the step of determining whether or not the upper limit is exceeded in the determining step, the server, A step of restricting communication to a user equipment that has transmitted the communication request in the network and a program for executing the program are provided.

  The communication system, the server, the communication method, and the program according to the present invention can prevent a specific user device from monopolizing the communication amount when a plurality of user devices share a network.

The block diagram which shows the communication system of this invention. 1 is a block diagram showing a communication system according to a first embodiment of the present invention. The block diagram which shows the detailed structure of the control part of a communication apparatus. The block diagram which shows the detailed structure of the control part of a server. The sequence diagram which shows the procedure at the time of subunit | mobile_unit information registration. The figure which shows an example of the subunit | mobile_unit information memorize | stored in a memory | storage device. The sequence diagram which shows the procedure when a user apparatus transmits a communication request. The figure which shows an example of the subunit | mobile_unit information memorize | stored in a memory | storage device in 2nd Embodiment of this invention. The block diagram which shows the detailed structure of the control part of the server in 3rd Embodiment of this invention. The sequence diagram which shows the procedure when the user apparatus in 3rd Embodiment transmits the communication request.

  Prior to the description of the embodiments of the present invention, an outline of the present invention will be described. FIG. 1 shows a communication system of the present invention. The communication system 10 includes a communication device 11 and a server 12. The communication device 11 can communicate with a plurality of user devices 14. The plurality of user devices 14 may be user devices used by a plurality of different users.

  The server 12 is connected to the communication device 11 via the network 13 and can communicate with the communication device 11 via the network 13. For example, a line contract is required to use the network 13, and for the contracted line of the network 13, for example, an upper limit on the amount of communication that can be used without communication restrictions is set. One contract line in the network 13 can be shared and used by a plurality of user devices 14 that can communicate with the communication device 11.

  The plurality of user devices 14 can use the network 13 (its contract line) through the communication device 11. The communication device 11 includes a request reception unit 21 and a transmission unit (first transmission unit) 22. The request receiving unit 21 receives a communication request for the network 13 from the user device 14. The transmission unit 22 transmits a packet (first packet) including information for specifying the user device 14 that has transmitted the communication request to the server 12.

  The server 12 includes a restriction determination unit 31 and a communication restriction unit 32. In the present invention, the upper limit of the communication amount is set for each of the plurality of user devices 14 within the upper limit of the communication amount of the contract line. The storage unit 33 stores the actual amount and the upper limit of the communication amount of the user device 14 in association with the user device 14. In FIG. 1, an example in which the storage unit 33 is arranged outside the server 12 is shown, but the storage unit 33 may be arranged inside the server 12.

  When the server 12 receives the packet transmitted from the transmission unit 22, the restriction determination unit 31 refers to the information for specifying the user device included in the packet and the storage unit 33, and the user device that transmitted the communication request It is determined whether or not the result of the communication amount of 14 exceeds the upper limit. When the restriction determination unit 31 determines that the upper limit is exceeded, the communication restriction unit 32 controls communication with the user device 14 that has transmitted the communication request in the network 13.

  For example, when a certain user device 14 transmits a communication request, the restriction determination unit 31 determines whether the communication amount of the user device 14 exceeds the upper limit. The communication restriction unit 32 restricts communication to the user device 14 in the network 13 when it is determined that the communication amount exceeds the upper limit. On the other hand, when another user device 14 transmits a communication request and the restriction determination unit 31 determines that the communication amount of the user device 14 does not exceed the upper limit, communication with the user device 14 is not restricted. In this way, by restricting communication to the user device 14 that has consumed a large amount of traffic, when a plurality of user devices 14 share the network 13, a specific user device 14 monopolizes the traffic. Can be suppressed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 2 shows a communication system according to the first embodiment of the present invention. The communication system 100 includes a communication device 110 and a server 120. The communication device 110 and the server 120 include a computer system including, for example, a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM), and a hard disk device.

  The communication device 110 can communicate with a plurality of user devices 101 via the local network 102. The local network 102 is configured by, for example, a wired network, a wireless network, or a combination thereof. The communication device 110 and the server 120 are connected to each other via, for example, a wide area network (WAN) 130. The communication device 110 corresponds to the communication device 11 shown in FIG. 1, and the server 120 corresponds to the server 12 shown in FIG. The user equipment 101 corresponds to the user equipment 14 shown in FIG.

  In the present embodiment, a cellular phone communication network is considered as the wide area network 130. The use of the mobile phone communication network 130 requires a line contract, and the contracted line of the mobile phone communication network 130 is set with an upper limit on the amount of communication that can be used without any communication restrictions. To do. In the present embodiment, a plurality of user devices 101 share and use one contract line of the mobile phone communication network 130. The cellular phone communication network 130 corresponds to the network 13 shown in FIG.

  The communication device 110 includes a modem control unit 112, a control unit 116, and a communication control unit 114. The modem control unit 112 communicates with the mobile phone communication network 130. The communication control unit 114 performs communication control of the user device 101 connected via the local network 102. The user device 101 is a device capable of network communication. For example, a device such as a mobile phone, a tablet device, or a personal computer (PC) is used as the user device 101. Hereinafter, the user device 101 connected to the communication device 110 is also referred to as a “child device”.

  The control unit 116 executes various controls (various processes) based on various programs stored in a storage unit (not shown). The control unit 116 includes, for example, a CPU, a ROM, a RAM, and an I / O (Input / Output) port. The processing performed by the control unit 116 includes processing for determining the communication path of the user device 101.

  The server 120 includes a communication control unit 122, a control unit 124, and a storage device 126. The communication control unit 122 performs communication control of the mobile phone communication network (first network) 130 and the network (second network) 140. The network 140 is configured by, for example, a wired network, a wireless network, or a combination thereof. The control unit 124 executes various controls (various processes) based on various programs stored in a storage unit (not shown). The control unit 124 includes, for example, a CPU, a ROM, a RAM, and an I / O port. The process performed by the control unit 124 includes a process for determining communication restriction.

  The storage device 126 is a storage device that stores various types of information. The storage device 126 is configured using various storage devices such as a hard disk device, an optical disk device, or a semiconductor storage device. The information stored in the storage device 126 includes handset information related to the user device 101. More specifically, the storage device 126 stores the actual and upper limit of the traffic of the user devices in association with the plurality of user devices 101. The storage device 126 corresponds to the storage unit 33 shown in FIG.

  Note that the storage device 126 only needs to be referable from the server 120 (particularly the control unit 124), and may not be configured inside the server 120. For example, the storage device 126 may be installed at a position different from the installation location of the server 120, and the server 120 may refer to the storage device 126 through a communication network.

  FIG. 3 shows a detailed configuration of the control unit 116 of the communication apparatus 110. The control unit 116 includes a request reception unit 601, a transmission unit 602, a response reception unit 603, a transmission unit 604, a data reception unit 605, a data distribution unit 606, a registration request unit 607, and a traffic amount counting unit 608. At least a part of the functions of the respective units in the control unit 116 is realized by, for example, a CPU configuring the control unit 116 operating according to a control program.

  The request receiving unit 601 receives communication requests from a plurality of user devices 101 (see FIG. 2) through the communication control unit 114. The request receiving unit 601 corresponds to the request receiving unit 21 shown in FIG. The transmission unit (first transmission unit) 602 transmits a packet (first packet) including information for uniquely identifying the user device 101 that has transmitted the communication request to the server 120 via the modem control unit 112. As information for specifying the user device 101, for example, the MAC (Media Access Control address) address of the user device 101 can be used. The first transmission unit 602 corresponds to the transmission unit 22 illustrated in FIG.

  In the present embodiment, the first transmission unit 602 transmits, as a first packet, a packet indicating a confirmation request that requests confirmation of whether or not the communication amount of the user device 101 that has transmitted the communication request exceeds the upper limit. To do. The response reception unit 603 receives the response to the confirmation request transmitted from the server 120 and transmitted from the first transmission unit 602 through the modem control unit 112. The response to the confirmation request includes a determination result indicating whether or not the communication amount of the user device 101 exceeds the upper limit.

  The second transmission unit 604 sends a communication request to the mobile phone communication network 130 or the network 140 through the modem control unit 112. When the response receiving unit 603 receives a determination result indicating that the communication amount does not exceed the upper limit, the second transmitting unit 604 requests communication to the destination designated by the user device 101, for example, 3GPP Implement communication in accordance with (Third Generation Partnership Project). More specifically, the second transmission unit 604 transmits a communication request to the access destination specified by the communication request transmitted from the user device 101 through the mobile phone communication network 130. When the response receiving unit 603 receives a determination result indicating that the communication amount exceeds the upper limit, the second transmitting unit 604 is not the destination designated by the user device 101 through the mobile phone communication network 130, A communication request is transmitted to the server 120.

  The data reception unit 605 receives a response to the communication request transmitted by the second transmission unit 604 through the modem control unit 112. The data receiving unit 605 receives, for example, data indicating a web page or streaming data as a response to the communication request. The data distribution unit 606 transmits the data received by the data reception unit 605 to the user device 101 that transmitted the communication request through the communication control unit 114.

  The communication amount counting unit 608 counts the communication amount of each user device 101 in the mobile phone communication network 130. The registration request unit 607 transmits a registration request for requesting registration of handset information to the server 120 (see FIG. 2) through the modem control unit 112. When registering the child device information, the administrator sets an upper limit of the communication amount for each of the user devices 101. The registration request unit 607 transmits, for example, information for uniquely identifying the user device 101 and the upper limit of the communication amount of the user device 101 to the server 103. In addition, the registration request unit 607 transmits the communication amount counted by the communication amount counting unit 608 to the server 120.

  FIG. 4 shows a detailed configuration of the control unit 124 of the server 120. The control unit 124 includes a request reception unit 401, a request determination unit 402, a restriction determination unit 403, a communication restriction unit 404, a registration unit 405, a data acquisition unit 406, and a data transmission unit 407. At least a part of the functions of the respective units in the control unit 124 is realized by, for example, a CPU configuring the control unit 124 operating according to a control program.

  The request reception unit 401 receives a packet indicating a confirmation request, a communication request, or a registration request transmitted from the communication device 110 through the communication control unit 122. When the request reception unit 401 receives a packet, the request determination unit 402 determines the type of the received packet. If the request determination unit 402 determines that the received packet indicates a confirmation request, the request determination unit 402 transmits the received packet to the restriction determination unit 403. If the request determination unit 402 determines that the received packet indicates a registration request, the request determination unit 402 transmits the received packet to the registration unit 405. If the request determination unit 402 determines that the received packet indicates a communication request, the request determination unit 402 sets the received packet as data. The data is transmitted to the acquisition unit 406.

  The registration unit 405 stores the handset information in the storage device 126 based on the received packet indicating the registration request. More specifically, when the registration request indicates registration of an upper limit of traffic, the registration unit 405 includes information for specifying the user device 101 included in the received packet, and an upper limit of the traffic of the user device 101. Are stored in the storage device 126 in association with each other. When the registration request indicates registration of the traffic amount counted by the traffic amount counting unit 608 (see FIG. 3), the registration unit 405 includes information for specifying the user device included in the received packet. The counted communication amount is added to the record of the communication amount stored in association.

  The restriction determination unit 403 determines whether or not the communication amount of the user device 101 exceeds the upper limit based on the received packet indicating the confirmation request and the child device information stored in the storage device 126. More specifically, the restriction determination unit 403 extracts information for specifying the user device 101 from the received packet, and searches the child device information stored in the storage device 126 using the extracted information as a key. The restriction determination unit 403 compares the record of the corresponding child device information with the upper limit, and determines whether or not the communication amount of the user device 101 to be checked exceeds the upper limit. The restriction determination unit 403 corresponds to the restriction determination unit 31 illustrated in FIG.

  The restriction determination unit 403 transmits the determination result to the communication device 110 through the communication control unit 122. When the communication amount of the user device 101 exceeds the upper limit, the restriction determination unit 403 responds to the confirmation request transmitted from the first transmission unit 602 (see FIG. 3), for example, a packet indicating “communication limited”. To the communication device 110. If the communication amount of the user device 101 does not exceed the upper limit, the restriction determination unit 403 transmits, for example, a packet indicating “no communication restriction” as a response to the confirmation request transmitted from the first transmission unit 602. Send to.

  The communication restriction unit 404 restricts communication with the user device 101 in the mobile phone communication network 130 when the restriction determination unit 403 determines that the actual amount of communication of the user device 101 exceeds the upper limit. If the restriction determination unit 403 determines that the communication volume of the user device 101 does not exceed the upper limit, the communication restriction unit 404 does not restrict communication with the user device 101 in the mobile phone communication network 130. For example, the communication restriction unit 404 restricts the communication of the user device 101 by causing the user device 101 to use the mobile phone communication network 130 in a state where the communication speed is reduced as compared with the case where the communication is not restricted. The communication restriction unit 404 corresponds to the communication restriction unit 32 illustrated in FIG.

  The data acquisition unit 406 acquires the data specified by the acquisition request from the access destination specified by the acquisition request through the communication control unit 122 based on the received packet indicating the communication request. For example, the data acquisition unit 406 transmits a communication request to the network 140 (see FIG. 2), and acquires data from an access destination data server connected to the network 140. The acquired data may be temporarily stored in the storage device 126 or another storage device (not shown) in the server 120. The data transmission unit 407 transmits the acquired data to the communication device 110 through the communication control unit 122.

  The operation procedure will be described below. FIG. 5 shows a procedure when registering handset information. The registration request unit 607 (see FIG. 3) of the communication device 110 acquires information (slave device identification information) for specifying the user device 101 to be registered (step A1). In step A1, the registration request unit 607 acquires the MAC address of the user device 101 to be registered, for example. The administrator sets an upper limit of the amount of communication that can use the mobile phone communication network 130 without being restricted by communication for the user device 101 to be registered (step A2). In step A <b> 2, the administrator inputs an upper limit setting value of the communication amount to the communication device 110 using an input device such as a keyboard (not shown).

  The registration request unit 607 transmits a packet indicating the registration request to the server 120 through the modem control unit 112 (step A3). The packet indicating the registration request includes, for example, the MAC address acquired in step A1 and the upper limit of the communication amount set in step A2. The server 120 receives the packet indicating the registration request transmitted from the communication device 110 through the mobile phone communication network 130.

  The request receiving unit 401 (see FIG. 4) of the server 120 receives the packet transmitted from the communication device 110 through the communication control unit 122. The request determination unit 402 analyzes the received packet and determines the type of the packet. If the request determination unit 402 determines that the received packet indicates a registration request, the request determination unit 402 transmits the received packet to the registration unit 405. The registration unit 405 registers the child device information in the storage device 126 according to the registration request (step A4).

  For example, in step A4, the registration unit 405 checks whether there is an entry having the slave unit identification information included in the registration request in the storage device 126. If there is no entry, the registration unit 405 creates a new child device information entry, and registers the upper limit of the communication amount included in the registration request as the upper limit of the communication amount of the created entry. When there is an entry, the registration unit 405 overwrites the upper limit of the entry having the slave unit identification information included in the registration request with the upper limit of the communication amount included in the registration request.

  FIG. 6 shows an example of handset information stored in the storage device 126. The slave unit information stores a user who shares one contract line, identification information (slave unit identification information) of a user device used by each user, a communication amount record, and a communication amount upper limit in association with each other. In the example of FIG. 6, for the user A, the storage device 126 is a mobile phone having a MAC address of MAC1 for the user device 101 to be used, the actual traffic volume is 1 GB (Byte), and the upper limit of the traffic volume is 3 GB. Is stored. In addition, the storage device 126 stores, for user B, handset information indicating that the user device 101 to be used is a PC having a MAC address of MAC2, the actual traffic volume is 4 GB, and the upper limit of the traffic volume is 3 GB. To do. The storage device 126 stores such slave unit information for each contracted line of the mobile phone communication network 130.

  FIG. 7 shows a procedure when the user device 101 transmits a communication request. The user equipment 101 transmits a packet indicating a communication request to the communication device 110 through the local network 102 (step B1). The request receiving unit 601 (see FIG. 3) of the communication device 110 receives a packet indicating a communication request transmitted from the user device 101 through the communication control unit 114. The first transmission unit 602 transmits a confirmation request for requesting confirmation of communication restriction of the user device 101 that has transmitted the communication request to the server 120 through the modem control unit 112 (step B2). The server 120 receives a packet indicating a confirmation request transmitted from the communication device 110 through the mobile phone communication network 130.

  In step B2, the first transmission unit 602 analyzes, for example, a packet indicating a communication request, and acquires the MAC address of the user device 101 that has transmitted the communication request. In addition, the first transmission unit 602 analyzes a packet indicating a communication request, and determines whether communication is started or communication is in progress. When determining that the communication is started, the first transmission unit 602 transmits a packet (confirmation request) including the MAC address of the user device 101 to the server 120 through the modem control unit 112. If the first transmission unit 602 determines that communication is in progress, the first transmission unit 602 need not periodically transmit a confirmation request to the server 120 for each communication request, and may transmit the confirmation request to the server 120 periodically.

  The request receiving unit 401 (see FIG. 4) of the server 120 receives a packet indicating a confirmation request through the communication control unit 122. The request determination unit 402 analyzes the received packet and determines the type of the packet. The request determination unit 402 transmits the packet indicating the confirmation request transmitted from the communication device 110 in step B <b> 2 to the restriction determination unit 403. The restriction determination unit 403 acquires the MAC address of the user device 101 that starts communication from the packet indicating the confirmation request. The restriction determination unit 403 refers to the storage device 126, compares the amount of traffic in the entry of the slave unit information including the acquired MAC address with the upper limit, and checks the traffic of the user device 101 (step B3).

  The restriction determination unit 403 determines whether or not the amount of traffic of the user device 101 exceeds the upper limit (step B4). For example, when the storage device 126 stores the handset information shown in FIG. 6 and the user device 101 that starts communication is the mobile phone of the user A, the amount of communication is 1 GB, which is still the upper limit, 2 GB The limit determination unit 403 determines that the upper limit is not exceeded. When the user device 101 that starts communication is the user B's PC, since the actual amount of communication is 4 GB and still exceeds the upper limit of 3 GB, the limit determination unit 403 determines that the upper limit is exceeded. If it is determined in step B4 that the amount of communication exceeds the upper limit, the communication restriction unit 404 performs communication restriction on the user device 101 (step B5). If the actual amount of communication does not exceed the upper limit, communication restriction for the user device 101 is not performed.

  The restriction determination unit 403 transmits the determination result of step B4 to the communication device 110 through the communication control unit 122 (step B6). The restriction determination unit 403 transmits “communication limited” to the communication device 110 when it is determined that the actual amount of communication exceeds the upper limit, and when it is determined that the actual amount of communication does not exceed the upper limit, “No communication restriction” is transmitted to the communication device 110. The communication device 110 receives the determination result transmitted from the server 120 through the mobile phone communication network 130.

  The response reception unit 603 of the communication apparatus 110 receives the determination result transmitted from the server 120 through the modem control unit 112. The second transmission unit 604 determines whether or not the determination result received by the response reception unit 603 indicates that the actual amount of communication exceeds the upper limit, that is, whether or not “communication restriction is present” (step S1203). B7). If the determination result is “communication restricted”, the second transmission unit 604 transmits a packet indicating a communication request (data acquisition request) to the server 120 through the modem control unit 112 (step B8). The communication amount counting unit 608 counts the communication amount (number of packets) of packets indicating the transmitted communication request. The server 120 receives a packet indicating a communication request transmitted from the communication device 110 through the mobile phone communication network 130.

  The request receiving unit 401 of the server 120 receives a packet indicating a communication request transmitted from the communication device 110 through the communication control unit 122. The request determination unit 402 analyzes the received packet and determines the type of the packet. The request determination unit 402 transmits the packet indicating the communication request transmitted from the communication device 110 in step B8 to the data acquisition unit 406. The data acquisition unit 406 analyzes the received packet and acquires a destination (address) to which the user device 101 requests communication. The data acquisition unit 406 transmits a communication request (data acquisition request) to the acquired data server 150 through the communication control unit 122 (step B9). The data server 150 receives the data acquisition request via the network 140 (see FIG. 2).

  In response to the data acquisition request, the data server 150 transmits the specified data to the server 120 via the network 140 (step B10). In the communication between the server 120 and the data server 150, the contract line of the user's cellular phone communication network 130 is not used. For this reason, when the server 120 acquires data, the communication amount of the contract line does not increase. After receiving the data, the data acquisition unit 406 transmits the received data to the communication device 110 through the communication control unit 122 (step B11). The communication device 110 receives data transmitted from the server 120 through the mobile phone communication network 130. The data transmission in step B11 is performed in a state where the communication restriction for the user device 101 is performed in step B5.

  On the other hand, if the second transmission unit 604 determines that “no communication restriction” in step B7, the second transmission unit 604 sends a communication request (data acquisition) to the destination data server 150 requested by the user device 101 through the modem control unit 112. Request) is transmitted (step B12). The communication amount counting unit 608 counts the communication amount (number of packets) of packets indicating the transmitted data acquisition request. The data server 150 receives the data acquisition request through the mobile phone communication network 130. In response to the data acquisition request, the data server 150 transmits the specified data to the communication device 110 through the mobile phone communication network 130 (step B13).

  The communication device 110 transmits the data transmitted from the server 120 in step B11 or the data transmitted from the data server 150 in step B13 to the user device 101 that transmitted the communication request in step B1 through the communication control unit 114 ( Step B14). The communication amount counting unit 608 counts the communication amount (number of packets) of data transmitted to the user device 101. The user device 101 receives data transmitted from the communication device 110 through the local network 102.

  The communication amount counting unit 608 obtains the sum of the communication amount of the data acquisition request transmitted from the communication device 110 to the server 120 or the data server 150 and the communication amount of the data transmitted from the communication device 110 to the user device 101. The registration request unit 607 transmits and reports a packet (registration request) including the MAC address of the user device 101 and the communication amount counted by the communication amount counting unit 608 to the server 120 (step B15). This packet is received by the request reception unit 401 of the server 120 and transmitted from the request determination unit 402 to the registration unit 405. The registration unit 405 adds the communication amount included in the registration request to the actual communication amount stored in the storage device 126.

  In the present embodiment, the upper limit of the communication amount is set for the user devices 101 used by a plurality of users who supply the same contracted line. The server 120 determines whether or not the actual traffic volume of the user device 101 that has transmitted the communication request exceeds the upper limit, and transmits the determination result to the communication device 110. The communication device 110 transmits a communication request to the server 120 when it is determined that the communication volume of the user device 101 that has transmitted the communication request exceeds the upper limit. If the communication device 110 determines that the amount of communication of the user device 101 that has transmitted the communication request does not exceed the upper limit, the communication device 110 transmits the communication request to the destination specified by the communication request.

  In this embodiment, the amount of communication is managed for each user who uses the same contract line, not for all users, and the presence or absence of communication restrictions is determined. By doing in this way, it is possible to manage individual communication amounts of users who share the same contract line through the communication device 110 and to communicate at a communication speed corresponding to the communication amount. Further, in this embodiment, by controlling the communication speed of each user according to the communication amount used by each user, it is possible to suppress excessive communication of a specific user, and as a result, the upper limit of the communication amount of the contracted line It is possible to delay the arrival of In the present embodiment, by appropriately distributing the communication amount of the contract line to each user, a plurality of users who share and use the mobile phone communication network 130 can use the line equally.

  Next, a second embodiment of the present invention will be described. The configuration of the communication system according to the second embodiment of the present invention is the same as the configuration of the communication system according to the first embodiment shown in FIG. In the first embodiment, the registration unit 405 (see FIG. 4) of the server 120 associates each user device 101 with the actual amount and the upper limit of the traffic and stores them in the storage device 126. In the present embodiment, the registration unit 405 groups a plurality of user devices 101 and stores in the storage device 126 the actual and upper limit of the traffic of the user devices 101 in each group in association with the grouped user devices 101. . Other points may be the same as in the first embodiment.

  FIG. 8 shows an example of handset information stored in the storage device 126 in the present embodiment. Group A corresponds to user A, for example, and group B corresponds to user B, for example. In FIG. 8, the storage device 126 stores the MAC addresses of the two user devices 101 corresponding to the user A (group A). Specifically, the storage device 126 stores, as user A's handset information, a mobile phone whose MAC address is MAC1 and a tablet whose MAC address is MAC3. The group and the user do not need to have a one-to-one correspondence. For example, a mobile phone having a MAC address of MAC1 and a tablet having a MAC address of MAC3 may be used by different users.

  In the present embodiment, the restriction determination unit 403 (see FIG. 4) refers to group A handset information when the user device 101 that has transmitted the communication request is the mobile phone (MAC1) used by the user A. Then, it is determined whether the actual amount of communication exceeds the upper limit. Even when the user device 101 that transmitted the communication request is the tablet (MAC3) used by the user A, the restriction determination unit 403 refers to the slave device information of the group A, and whether the amount of communication exceeds the upper limit. Judge whether or not. In the group A slave unit information, the total of the communication amount of communication performed using the mobile phone and the communication amount of communication performed using the tablet is stored in the actual amount of communication.

  In the present embodiment, a plurality of user devices 101 are grouped, and the amount of traffic of the user devices 101 in each group and the upper limit are stored in the storage device 126 in association with the grouped user devices 101. By doing in this way, in the management of the track record and the upper limit of the traffic, a plurality of user devices 101 belonging to the same group can be handled as one user device 101. In this embodiment, even when there are a plurality of user devices 101 used by the same user, it is only necessary to set an upper limit of the communication amount for the grouped user devices 101, and it is not necessary to set an upper limit for each user device 101. . Therefore, in this embodiment, when the user uses a plurality of user devices 101, it becomes easy to manage the amount of communication, and improvement in user convenience can be expected. Other effects are the same as those of the first embodiment.

  Subsequently, a third embodiment of the present invention will be described. The configuration of the communication system according to the third embodiment of the present invention is the same as the configuration of the communication system according to the first embodiment shown in FIG. In the present embodiment, the first transmission unit 602 (see FIG. 3) of the communication device 110 transmits a packet indicating a communication request to the server 120 as a first packet. The communication system according to the present embodiment is the first or second embodiment in that the communication device 110 acquires data from the server 120 even when the communication performance of the user device 101 that transmitted the communication request does not exceed the upper limit. This is different from the communication system according to the embodiment. In particular, the points not described below may be the same as those in the first or second embodiment.

  FIG. 9 shows a detailed configuration of the control unit 124a of the server 120 in the present embodiment. The control unit 124 a includes a request reception unit 401, a request determination unit 402, a restriction determination unit 403, a communication restriction unit 404, a registration unit 405, a data acquisition unit 406, a data transmission unit 407, and a traffic amount counting unit 408. At least a part of the functions of the respective units in the control unit 124a is realized by, for example, the CPU configuring the control unit 124a operating according to a control program.

  The request receiving unit 401 receives a communication request transmitted from the communication device 110 or a packet indicating a registration request through the communication control unit 122. When the request reception unit 401 receives a packet, the request determination unit 402 determines the type of the received packet. If the request determination unit 402 determines that the received packet indicates a communication request, the request determination unit 402 transmits the received packet to the restriction determination unit 403 and the data acquisition unit 406. If the request determination unit 402 determines that the received packet indicates a registration request, the request determination unit 402 transmits the received packet to the registration unit 405. Processing for the registration request is the same as that described in the first embodiment.

  The restriction determination unit 403 determines whether or not the communication amount of the user device 101 exceeds the upper limit based on the packet indicating the communication request (first packet) and the slave device information stored in the storage device 126. This determination is the same as that described in the first embodiment. The communication restriction unit 404 restricts communication with the user device 101 in the mobile phone communication network 130 when the restriction determination unit 403 determines that the actual amount of communication of the user device 101 exceeds the upper limit. If the restriction determination unit 403 determines that the communication volume of the user device 101 does not exceed the upper limit, the communication restriction unit 404 does not restrict communication with the user device 101 in the mobile phone communication network 130.

  The data acquisition unit 406 acquires data specified in the acquisition request from the access destination specified in the acquisition request through the communication control unit 122 based on the packet indicating the communication request. For example, the data acquisition unit 406 transmits a communication request to the network 140 (see FIG. 2), and acquires data from an access destination server connected to the network 140. The data transmission unit 407 transmits the acquired data to the communication device 110 through the communication control unit 122. Data acquisition and transmission processing may be the same as described in the first embodiment.

  The communication amount counting unit 408 counts the communication amount with respect to the user device 101. The communication amount counted by the communication amount counting unit 408 is stored in the storage device 126 as the actual communication amount of the user device 101 through the registration unit 405, for example. In the present embodiment, the communication device 110 may not include the communication amount counting unit 608 (see FIG. 3).

  The operation procedure will be described below. FIG. 10 shows a procedure when the user equipment 101 transmits a communication request in the present embodiment. The user device 101 transmits a packet indicating a communication request to the communication device 110 through the local network 102 (step C1). The request receiving unit 601 (see FIG. 3) of the communication device 110 receives a packet indicating a communication request transmitted from the user device 101 through the communication control unit 114.

  The first transmission unit 602 transmits the communication request that has transmitted the communication request to the server 120 through the modem control unit 112 (step C2). In step C2, the first transmission unit 602 transmits, for example, a communication request including the MAC address of the user device 101 that has transmitted the communication request to the server 120. The server 120 receives a packet indicating a communication request transmitted from the communication device 110 via the mobile phone communication network 130.

  The request receiving unit 401 (see FIG. 9) of the server 120 receives a packet indicating a communication request through the communication control unit 122. The request determination unit 402 analyzes the received packet and determines the type of the packet. The request determination unit 402 transmits the packet (communication request) transmitted from the communication device 110 in step C <b> 2 to the restriction determination unit 403 and the data acquisition unit 406.

  The data acquisition unit 406 analyzes the received packet and acquires a destination (address) to which the user device 101 requests communication. The data acquisition unit 406 transmits a communication request (data acquisition request) to the acquired data server 150 via the communication control unit 122 (step C3). The communication amount counting unit 408 counts the number of communication request packets transmitted in step C <b> 3 as the communication amount of the user device 101. The data server 150 receives the data acquisition request via the network 140 (see FIG. 2). In response to the data acquisition request, the data server 150 transmits the specified data to the server 120 via the network 140 (step C4).

  The restriction determination unit 403 acquires the MAC address of the user device 101 that starts communication from the packet indicating the communication request. The restriction determination unit 403 refers to the storage device 126, compares the actual amount of traffic in the slave unit information entry including the acquired MAC address with the upper limit, and checks the traffic of the user device 101 (step C5). The restriction determination unit 403 determines whether or not the amount of traffic of the user device 101 exceeds the upper limit (step C6).

  If it is determined in step C4 that the amount of communication exceeds the upper limit, the communication restriction unit 404 performs communication restriction on the user device 101 (step C7). If the actual amount of communication does not exceed the upper limit, communication restriction for the user device 101 is not performed. Note that either the processing of steps C3 and C4 or the processing of steps C5 to C7 may be performed first. Alternatively, these processes may be performed in parallel.

  The data acquisition unit 406 transmits the received data to the communication device 110 through the communication control unit 122 (step C8). The communication device 110 receives data transmitted from the server 120 through the mobile phone communication network 130. If it is determined in step C6 that the actual traffic volume has exceeded the upper limit of the traffic volume, the data transmission in step C8 is performed in a state where the communication restriction for the user device 101 is performed in step C7. On the other hand, if it is determined in step C6 that the actual traffic volume does not exceed the upper limit of the traffic volume, the data transmission in step C8 is performed without any communication restriction.

  The communication device 110 transmits the data transmitted from the server 120 in step C8 to the user equipment 101 that transmitted the communication request in step C1 through the communication control unit 114 (step C9). The communication amount counting unit 408 counts the communication amount (number of packets) of data transmitted from the server 120 to the user device 101 via the communication device 110. The registration unit 405 adds the communication amount counted by the communication amount counting unit 408 to the actual communication amount stored in the storage device 126 (step C10).

  In the present embodiment, the communication device 110 transmits a communication request to the server 120 regardless of whether or not a communication restriction on the user device 101 occurs. Data transmission from the server 120 to the user device 101 is performed in a state where there is a communication restriction if the actual amount of communication of the user device 101 exceeds the upper limit, and in a state where there is no communication restriction if the upper limit is not exceeded. Will be implemented. In the present embodiment, data transmission to the user device 101 is performed via the server 120 regardless of whether there is a communication restriction or no communication restriction. And can manage the traffic in real time. Other effects are the same as those of the first or second embodiment.

  In the above embodiment, the program can be stored using various types of non-transitory computer readable media and supplied to the computer. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media such as flexible disks, magnetic tapes, and hard disks, magneto-optical recording media such as magneto-optical disks, CDs (compact discs), and DVDs (digital versatile disks). And a semiconductor memory such as a mask ROM (read only memory), a PROM (programmable ROM), an EPROM (erasable PROM), a flash ROM, or a RAM (random access memory). Further, the program may be supplied to the computer using various types of temporary 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.

  As mentioned above, although embodiment of this invention was described in detail, this invention is not limited to above-described embodiment, A change and correction are added with respect to the said embodiment in the range which does not deviate from the meaning of this invention. Also included in the present invention.

  For example, a part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

[Appendix 1]
A communication device capable of communicating with a plurality of user devices;
A server connected to the communication device via a network;
The communication device
A request receiver for receiving communication requests from a plurality of user devices;
A first transmission unit that transmits a first packet including information for identifying the user equipment that has transmitted the communication request to the server;
The server
When the first packet is received from the communication device, information for specifying the user equipment included in the first packet, and the actual and upper limit of the traffic of the user equipment in association with the user equipment A limit determination unit that refers to a storage unit to store, and determines whether or not the performance of the communication amount of the user device that transmitted the communication request exceeds an upper limit;
A communication system comprising: a communication restriction unit that restricts communication to a user device that has transmitted the communication request in the network when the restriction determination unit determines that the upper limit is exceeded.

[Appendix 2]
The first packet is a packet indicating a confirmation request;
The communication system according to supplementary note 1, wherein the restriction determination unit transmits a determination result indicating whether or not the upper limit is exceeded to the communication device.

[Appendix 3]
The communication device
And a second transmission unit that transmits the communication request to the access destination specified by the communication request through the network when a determination result indicating that the upper limit is not exceeded is received from the restriction determination unit. 2. The communication system according to 2.

[Appendix 4]
The communication system according to supplementary note 3, wherein the second transmission unit transmits the communication request to the server through the network when a determination result indicating that the upper limit is exceeded is received from the restriction determination unit. .

[Appendix 5]
The server
A data acquisition unit that receives the communication request from the communication device and acquires data specified by the communication request from an access destination specified by the received communication request;
The communication system according to appendix 4, further comprising: a data transmission unit configured to transmit the data to the user device via the communication device.

[Appendix 6]
The communication system according to appendix 5, wherein the data transmission unit transmits the data in a state where the communication restriction unit restricts the communication.

[Appendix 7]
The communication system according to any one of appendices 2 to 6, wherein the communication device further includes a communication amount count unit that counts a communication amount of the user device in the network.

[Appendix 8]
The communication system according to any one of appendices 2 to 7, wherein the first transmission unit transmits the first packet when communication of the user device is started.

[Appendix 9]
The first packet is a packet indicating the communication request;
When the server receives the first packet from the communication device, the server acquires data specified by the communication request from an access destination specified by the communication request indicated by the first packet, and acquires the acquired data, The communication system according to supplementary note 1, further comprising a data transmission unit configured to transmit to the user device via the communication device.

[Appendix 10]
When the limit determination unit determines that the upper limit is not exceeded, the data transmission unit transmits the data in a state where the communication limit unit does not limit the communication, and the limit determination unit sets the upper limit. The communication system according to appendix 9, wherein when it is determined that the communication limit is exceeded, the communication restriction unit transmits the data in a state where the communication is restricted.

[Appendix 11]
The communication system according to appendix 9 or 10, wherein the server further includes a communication amount counting unit that counts a communication amount of the user device in the network.

[Appendix 12]
The communication system according to any one of appendices 1 to 11, wherein the server further includes a registration unit in which the storage unit stores an upper limit of a communication amount of the user device in association with the user device.

[Appendix 13]
The communication system according to appendix 12, wherein the registration unit groups a plurality of user devices, and stores the upper limit of the communication amount of the user devices in each group in the storage unit in association with the grouped user devices.

[Appendix 14]
A server connected via a network to a communication device capable of communicating with a plurality of user devices,
When a packet including information for identifying a user device that has transmitted a communication request to the communication device is received from the communication device, the information for identifying the user device included in the packet corresponds to the user device. A restriction determination unit that refers to a storage unit that stores the actual amount and the upper limit of the communication amount of the user device, and determines whether or not the actual amount of communication of the user device that has transmitted the communication request exceeds the upper limit. When,
A server comprising: a communication restriction unit that restricts communication to a user device that has transmitted the communication request in the network when the restriction determination unit determines that the upper limit is exceeded.

[Appendix 15]
A communication method in a communication system including a communication device capable of communication with a plurality of user devices and a server connected to the communication device via a network,
The server receiving a packet including information for identifying a user equipment that has transmitted a communication request to the communication device from the communication device;
The server refers to information for identifying a user device included in the packet, and a storage unit that stores a record of the amount of traffic of the user device and an upper limit associated with the user device, and the communication request Determining whether or not the actual amount of traffic of the user equipment that transmitted the message exceeds the upper limit;
And a step of restricting communication to the user equipment that has transmitted the communication request in the network when the server determines that the upper limit is exceeded in the determining step.

[Appendix 16]
To a server connected via a network to a communication device capable of communicating with a plurality of user devices,
When a packet including information for specifying a user device that has transmitted a communication request to the communication device is received from the communication device, information for specifying the user device included in the packet, and the user device A step of determining whether or not the record of the communication amount of the user device that has transmitted the communication request exceeds the upper limit with reference to a storage unit that stores the record and the upper limit of the communication amount of the user device in association with When,
A program for causing the server to execute a step of restricting communication to the user equipment that has transmitted the communication request in the network when it is determined that the upper limit is exceeded in the determining step.

[Appendix 17]
A communication device connected to a server via a network,
A request receiver for receiving communication requests from a plurality of user devices;
A first transmission unit that transmits a confirmation request to the server for requesting confirmation of whether or not the amount of communication of the user device that has transmitted the communication request exceeds a predetermined upper limit;
A response receiver for receiving a response to the confirmation request from the server;
When indicating that the response does not exceed the upper limit, transmit the communication request to the access destination specified by the communication request through the network, and when indicating that the response exceeds the upper limit, A communication apparatus comprising: a second transmission unit that transmits the communication request to the server through a network.

[Appendix 18]
A communication method in a communication system including a communication device capable of communication with a plurality of user devices and a server connected to the communication device via a network,
Receiving a communication request from the user equipment;
Transmitting a confirmation request to the server for requesting confirmation of whether or not the actual amount of communication of the user equipment that has transmitted the communication request exceeds a predetermined upper limit;
Receiving a response to the confirmation request from the server;
When indicating that the response does not exceed the upper limit, transmit the communication request to the access destination specified by the communication request through the network, and when indicating that the response exceeds the upper limit, Transmitting the communication request to the server through a network.

[Appendix 19]
A communication device that can communicate with a plurality of user devices and is connected to a server via a network.
When receiving a communication request from the user device, a step of transmitting a confirmation request to the server for requesting confirmation of whether or not the performance of the communication amount of the user device that has transmitted the communication request exceeds a predetermined upper limit. When,
If the response to the confirmation request received from the server indicates that the upper limit is not exceeded, the communication request is transmitted to the access destination specified by the communication request through the network, and the response exceeds the upper limit. A program for causing the server to transmit the communication request through the network.

10: communication system 11: communication device 12: server 13: network 14: user equipment 21: request reception unit 22: transmission unit (first transmission unit)
31: Restriction determination unit 32: Communication restriction unit 33: Storage unit 100: Communication system 101: User device 102: Local network 103: Server 110: Communication device 112: Modem control unit 114: Communication control unit 116: Control unit 120: Server 122: Communication control unit 124: Control unit 126: Storage device 130: Network 140: Network 150: Data server 401: Request reception unit 402: Request determination unit 403: Restriction determination unit 404: Communication restriction unit 405: Registration unit 406: Data Acquisition unit 407: data transmission unit 408: communication amount counting unit 601: request reception unit 602: transmission unit (first transmission unit)
603: Response receiver 604: Transmitter (second transmitter)
605: Data reception unit 606: Data distribution unit 607: Registration request unit 608: Traffic count unit

Claims (10)

A communication device capable of communicating with a plurality of user devices;
A server connected to the communication device via a network;
The communication device
A request receiver for receiving communication requests from a plurality of user devices;
A first transmission unit that transmits a first packet including information for identifying the user equipment that has transmitted the communication request to the server;
The server
When the first packet is received from the communication device, information for specifying the user equipment included in the first packet, and the actual and upper limit of the traffic of the user equipment in association with the user equipment A limit determination unit that refers to a storage unit to store, and determines whether or not the performance of the communication amount of the user device that transmitted the communication request exceeds an upper limit;
A communication system comprising: a communication restriction unit that restricts communication to a user device that has transmitted the communication request in the network when the restriction determination unit determines that the upper limit is exceeded. The first packet is a packet indicating a confirmation request;
The restriction determination unit transmits a determination result indicating whether or not the upper limit is exceeded, to the communication device,
The communication device
When a determination result indicating that the upper limit is not exceeded is received from the restriction determination unit, the communication request is transmitted to the access destination specified by the communication request through the network, and the upper limit is exceeded from the restriction determination unit. The communication system according to claim 1, further comprising: a second transmission unit configured to transmit the communication request to the server through the network when a determination result indicating that the communication is performed is received. The server
A data acquisition unit that receives the communication request from the communication device and acquires data specified by the communication request from an access destination specified by the received communication request;
The communication system according to claim 2, further comprising: a data transmission unit that transmits the data to the user equipment via the communication device in a state where the communication restriction unit restricts the communication. The first packet is a packet indicating the communication request;
When the server receives the first packet from the communication device, the server acquires data specified by the communication request from an access destination specified by the communication request indicated by the first packet, and acquires the acquired data, The communication system according to claim 1, further comprising a data transmission unit configured to transmit to the user equipment via the communication device.   When the limit determination unit determines that the upper limit is not exceeded, the data transmission unit transmits the data in a state where the communication limit unit does not limit the communication, and the limit determination unit sets the upper limit. The communication system according to claim 4, wherein when it is determined that the communication limit has been exceeded, the communication restriction unit transmits the data while restricting the communication.   The communication system according to claim 1, wherein the storage unit further includes a registration unit that stores an upper limit of a communication amount of the user device in association with the user device.   The communication system according to claim 6, wherein the registration unit groups a plurality of user devices, and stores the upper limit of the communication amount of the user devices in each group in the storage unit in association with the grouped user devices. A server connected via a network to a communication device capable of communicating with a plurality of user devices,
When a packet including information for identifying a user device that has transmitted a communication request to the communication device is received from the communication device, the information for identifying the user device included in the packet corresponds to the user device. A restriction determination unit that refers to a storage unit that stores the actual amount and the upper limit of the communication amount of the user device, and determines whether or not the actual amount of communication of the user device that has transmitted the communication request exceeds the upper limit. When,
A server comprising: a communication restriction unit that restricts communication to a user device that has transmitted the communication request in the network when the restriction determination unit determines that the upper limit is exceeded. A communication method in a communication system including a communication device capable of communication with a plurality of user devices and a server connected to the communication device via a network,
The server receiving a packet including information for identifying a user equipment that has transmitted a communication request to the communication device from the communication device;
The server refers to information for identifying a user device included in the packet, and a storage unit that stores a record of the amount of traffic of the user device and an upper limit associated with the user device, and the communication request Determining whether or not the actual amount of traffic of the user equipment that transmitted the message exceeds the upper limit;
And a step of restricting communication to the user equipment that has transmitted the communication request in the network when the server determines that the upper limit is exceeded in the determining step. To a server connected via a network to a communication device capable of communicating with a plurality of user devices,
When a packet including information for specifying a user device that has transmitted a communication request to the communication device is received from the communication device, information for specifying the user device included in the packet, and the user device A step of determining whether or not the record of the communication amount of the user device that has transmitted the communication request exceeds the upper limit with reference to a storage unit that stores the record and the upper limit of the communication amount of the user device in association with When,
A program for causing the server to execute a step of restricting communication to the user equipment that has transmitted the communication request in the network when it is determined that the upper limit is exceeded in the determining step.

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