WO2018139414A1 - Communication management device, communication system, communication management method, and communication method - Google Patents

Abstract

[Problem] To provide: a communication management device capable of appropriately controlling traffic in a communication network; a communication system; a communication management method; and a communication method. [Solution] According to the present invention, an information acquisition unit 12 acquires statistical information, which is information that depends on a communication situation, from a plurality of relay devices constituting a path for communication information, which is information transmitted and received between one communication terminal and another communication terminal. A traffic amount setting unit 13 sets a traffic amount in the path for communication information in a plurality of relay devices according to the statistical information acquired by the information acquisition unit 12. Here, a plurality of paths in which at least some sections are parallel to each other are formed by a plurality of relay devices.

Description

COMMUNICATION MANAGEMENT DEVICE, COMMUNICATION SYSTEM, COMMUNICATION MANAGEMENT METHOD, AND COMMUNICATION METHOD

The present invention relates to a communication management device, a communication system, a communication management method, and a communication method for transmitting and receiving information.

In a mobile backhaul, which is a communication path between a base station and a core network in a mobile phone communication system, various data and signals (hereinafter also referred to as information) such as voice-based data, e-mail data, and control signals. Is being transmitted. And the traffic amount in a mobile backhaul changes a lot according to a time zone, for example.

In Patent Document 1, when it is detected that congestion has occurred between one terminal and one server in a communication network, the bandwidth between the one terminal and the one server may be adjusted. Are listed.

Patent Document 2 describes that a packet relay station on the downstream side transmits information indicating a band according to the reception status to the packet relay station on the upstream side when the reception status of the packet deteriorates.

JP 2014-192882 A International Publication No. 2011/148748

The invention described in Patent Document 1 adjusts the bandwidth of the route based on the communication status of one route between one terminal and one server, but according to the situation of the entire communication network. No adjustment is made. Therefore, in the invention described in Patent Document 1, the bandwidth between the one terminal and the one server is not appropriately adjusted based on the situation of the entire communication network.

The invention described in Patent Document 2 is based on the premise that the packet relay stations are connected in series with each other. However, the invention can also be applied to a case where the communication network of each packet relay station is configured in a network. It is desirable that

Therefore, an object of the present invention is to provide a communication management device, a communication system, a communication management method, and a communication method that can appropriately control traffic in a communication network.

The communication management device according to the present invention is a statistical information which is information corresponding to a communication situation from a plurality of relay devices constituting a route of communication information which is information transmitted and received between one communication terminal and the other communication terminal. And a traffic volume setting unit that sets the traffic volume of the path of the communication information in a plurality of relay devices according to the statistical information acquired by the information acquisition unit. A plurality of paths in which at least some sections are parallel to each other are configured.

The communication system according to the present invention includes any one of the communication management devices and the relay device.

According to the communication management method of the present invention, statistical information, which is information corresponding to a communication state, from a plurality of relay devices constituting a path of communication information that is information transmitted and received between one communication terminal and the other communication terminal. And a traffic volume setting step for setting the traffic volume of the path of the communication information in a plurality of relay devices according to the statistical information acquired in the information acquisition step, A plurality of paths in which at least some sections are parallel to each other are configured.

The communication method according to the present invention includes a communication management method according to any aspect, and a relay step in which the relay device performs a relay process of communication information according to the traffic volume set in the traffic volume setting step.

A communication management apparatus according to another aspect of the present invention includes a traffic volume setting unit that sets a traffic volume for each path in a communication apparatus forming a communication network in which a plurality of paths of communication information are configured, and the traffic volume setting In the first route among the plurality of routes, when the bandwidth of a section that is communicated by one communication device and does not overlap with the second route fluctuates, other means on the second route A traffic amount corresponding to the fluctuation is set in the communication device.

A communication system according to another aspect of the present invention includes a communication management device according to another aspect and the communication device.

According to the present invention, traffic in a communication network can be appropriately controlled.

It is a block diagram which shows the example of a connection of the communication management apparatus of 1st Embodiment. It is a block diagram which shows the structural example of the communication management apparatus of 1st Embodiment. It is explanatory drawing which shows the example of the route information memorize | stored in the memory | storage part. It is explanatory drawing which shows the example of the statistical information memorize | stored in the memory | storage part. It is explanatory drawing which shows the example of the apparatus structure information memorize | stored in the memory | storage part. It is a block diagram which shows the structural example of the radio relay apparatus in 1st Embodiment. It is explanatory drawing which shows the example of the setting information memorize | stored in the memory | storage part in the radio relay apparatus of 1st Embodiment. It is a flowchart which shows operation | movement of the communication management apparatus of 1st Embodiment. It is explanatory drawing which shows the example of the path | route from which the starting point and the end point mutually differ at the change origin and change destination of traffic allocation. It is a block diagram which shows the structural example of the communication management apparatus of 2nd Embodiment. It is a block diagram which shows the structural example of the communication management apparatus of 3rd Embodiment.

Embodiment 1. FIG.
A first embodiment will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a connection example of the communication management apparatus 100 according to the first embodiment. As shown in FIG. 1, the communication management apparatus 100 is connected to the radio relay apparatuses 210 to 240. Then, the communication management apparatus 100 controls traffic in the radio relay apparatuses 210 to 240. The wireless relay devices 210 to 240 may not be directly connected to the communication management device 100 but may be configured to transmit / receive information to / from the communication management device 100 via other wireless relay devices. Specifically, for example, the wireless relay device 220 is not directly connected to the communication management device 100 but the wireless relay device 230 is directly connected to the communication management device 100, and the wireless relay device 220 and the communication management device 100 are wirelessly connected. Information may be transmitted / received via the relay device 230. In such a case, the information transmitted / received between the wireless relay device 220 and the communication management device 100 is, for example, sharing the information transmission / reception route between the wireless relay device 220 and the wireless relay device 230 with other traffic. Will do.

The wireless relay device 210 and the wireless relay devices 220 and 230 are installed so as to be capable of wireless communication with each other. Further, the wireless relay device 220 and the wireless relay device 230 are installed so as to be capable of wireless communication with each other. The wireless relay device 230 and the wireless relay device 240 are installed so as to be capable of wireless communication with each other.

A wireless base station 311 is connected to the wireless relay device 210. Further, the wireless relay device 210 is connected to the communication device 410. The communication device 410 is connected to the core network 500.

Wireless base stations 321 and 322 are connected to the wireless relay device 220. A wireless base station 331 is connected to the wireless relay device 230.

The wireless relay device 240 is connected to the communication device 420. The communication device 420 is connected to the communication device 410. In addition, a wireless base station 351 is connected to the communication device 420.

The wireless relay devices 210 to 240 constitute, for example, a net-like aggregation network in a mobile phone communication system. The communication management apparatus 100 and the radio relay apparatuses 210 to 240 constitute a communication system.

The communication devices 410 and 420 are, for example, MME (Mobility Management Entity), BSC (Base Station Controller), RNC (Radio Network Controller), IP-RNC (Internet Protocol-RNC), and the like. Then, for example, a metro network in a mobile phone communication system is configured in a net shape or a ring shape by the communication devices 410 and 420 and other communication devices not shown. Note that the communication devices 410 and 420 may be included in a core network 500 such as EPC (Evolved Packet Core network) or GPRS (General Packet Radio Service).

The radio base stations 311, 321, 322, 331, 351 are base stations in a mobile phone communication system, for example.

In this example, it is assumed that information is transmitted and received between the mobile terminal 610 that is in a range where communication with the radio base station 322 is possible and the mobile terminal 620 that is in a range where communication with the radio base station 351 is possible. A part of the information is transmitted via a route A (route indicated by a broken line in FIG. 1) that is a route through the radio base station 322, the radio relay devices 220, 230, and 240, the communication device 420, and the radio base station 351. Sent and received. Further, the remainder of the information is a route B (route indicated by a dotted line in FIG. 1) that is a route through the radio base station 322, the radio relay devices 220, 230, and 210, the communication devices 410 and 420, and the radio base station 351. Are sent and received via

Specifically, the communication management apparatus 100 controls the radio relay apparatuses 220, 230, and 240 so that a part of information is transmitted and received between the mobile terminal 610 and the mobile terminal 620 via the path A. To do. Further, the communication management device 100 controls the radio relay devices 220, 230, and 210 so that the remaining information is transmitted and received between the mobile terminal 610 and the mobile terminal 620 via the path B.

Hereinafter, information (which may be part of the information) transmitted / received via the route A is also referred to as “route A traffic”. Information transmitted / received via the route B (which may be the remaining information) is also referred to as “route B traffic”.

FIG. 2 is a block diagram illustrating a configuration example of the communication management apparatus 100 according to the first embodiment. As illustrated in FIG. 2, the communication management apparatus 100 according to the first embodiment includes a storage unit 110, a communication unit 120, and a control unit 130.

Information is stored in the storage unit 110. In this example, the storage unit 110 stores route information, statistical information, and device configuration information. Each information will be described later. The communication unit 120 transmits / receives information to / from the wireless relay devices 210-240. The control unit 130 controls the entire communication management apparatus 100.

Note that the communication management apparatus 100 is realized by a computer such as a server, for example. The storage unit 110 is realized by a storage unit such as a memory or a hard disk, for example. The communication unit 120 is realized by a communication module, for example. The control unit 130 is realized by a CPU (Central Processing Unit) that executes processing according to program control and a plurality of circuits.

FIG. 3 is an explanatory diagram illustrating an example of route information stored in the storage unit 110. The route information is information indicating each route adopted by the communication management device 100. In this example, the contents of the route information are stored in the storage unit 110 in a table format.

3 shows that the route information indicates the route A via the radio base station 322, the radio relay devices 220, 230, and 240, the communication device 420, and the radio base station 351. FIG. 3 also shows that the route information indicates the route B via the radio base station 322, the radio relay devices 220, 230, 210, the communication devices 410, 420, and the radio base station 351. In this example, the route is described as the wireless base stations 322 and 351 communicating with the mobile terminals 610 and 620, both of which are communication terminals at the start point and the end point. Both may be wireless relay devices that are communication relay devices, not wireless base stations or communication terminals. That is, as the route, a route in the middle of route A or route B or one of the end points may be adopted.

FIG. 4 is an explanatory diagram illustrating an example of statistical information stored in the storage unit 110. The statistical information is information indicating the maximum amount of traffic for each route in each of the radio relay apparatuses 210 to 240. In this example, the contents of the statistical information are stored in the storage unit 110 in a table format.

FIG. 4 illustrates that the statistical information indicates that the maximum amount of traffic on the route B in the wireless relay device 210 is 100 Mbps (bits per second).

FIG. 4 illustrates that the statistical information indicates that the maximum amount of traffic on route A is 200 Mbps in the wireless relay device 220. Further, FIG. 4 illustrates that the statistical information indicates that the maximum amount of traffic on the route B in the wireless relay device 220 is 100 Mbps.

FIG. 4 illustrates that the statistical information indicates that the maximum amount of traffic on route A is 200 Mbps in the wireless relay device 230. FIG. 4 illustrates that the statistical information indicates that the maximum amount of traffic on the route B in the wireless relay device 230 is 100 Mbps.

FIG. 4 exemplifies that the maximum amount of traffic on route A is 200 Mbps in the wireless relay device 240.

FIG. 5 is an explanatory diagram showing an example of device configuration information stored in the storage unit 110. The device configuration information refers to a wireless processing capacity that is an amount capable of wireless communication processing in each of the wireless relay devices 210 to 240, and other wireless relay devices and communication devices installed at positions where direct wireless communication is possible. It is information to show. A wireless relay device and a communication device installed at a position where direct wireless communication is possible are also referred to as adjacent devices. In this example, the contents of the device configuration information are stored in the storage unit 110 in a table format.

FIG. 5 illustrates that the device configuration information indicates that the wireless processing capacity of the wireless relay device 210 is 200 Mbps, and that the wireless relay devices 220 and 230 and the communication device 410 are adjacent devices.

FIG. 5 illustrates that the device configuration information indicates that the wireless processing capacity of the wireless relay device 220 is 300 Mbps and the wireless relay devices 210 and 230 are adjacent devices. Further, FIG. 5 exemplifies that the device configuration information indicates that the wireless processing capacity of the wireless relay device 230 is 300 Mbps and the wireless relay devices 210, 220, and 240 are adjacent devices. FIG. 5 illustrates that the device configuration information indicates that the wireless processing capacity of the wireless relay device 240 is 300 Mbps, and the wireless relay device 230 and the communication device 420 are adjacent devices. In the communication management apparatus 100, it is assumed that the communication apparatus 410 and the communication apparatus 420 are registered in advance so that communication is possible.

FIG. 6 is a block diagram illustrating a configuration example of the wireless relay device 230 according to the first embodiment. As shown in FIG. 6, the wireless relay device 230 in the first embodiment includes a wireless communication unit 231, a wired communication unit 232, a storage unit 233, and a control unit 234.

The wireless communication unit 231 performs wireless communication. In this example, the wireless communication unit 231 performs wireless communication with the other wireless relay apparatuses 210 and 220 by appropriately switching the modulation method according to the wireless communication environment using the adaptive modulation and coding (AMC (Adaptive Modulation and Coding)) method. Do. Therefore, the maximum amount of traffic indicates the employed modulation scheme. Therefore, the communication management apparatus 100 changes the modulation scheme employed depending on whether the value of the maximum amount of traffic received this time from each of the radio relay apparatuses 210 to 240 has changed with respect to the value received last time. It can be identified whether or not. Further, the communication management apparatus 100 is configured to receive information indicating the modulation scheme employed from each of the radio relay apparatuses 210 to 240, and the modulation scheme indicated by the currently received information is the modulation scheme indicated by the previously received information. It may be configured to be able to identify whether or not the value of the maximum amount of traffic has changed depending on whether or not it is different.

The wired communication unit 232 performs communication via a wired communication line. In this example, the wired communication unit 232 communicates with the communication management apparatus 100 and the radio base station 331.

Information is stored in the storage unit 233. In this example, setting information is stored in the storage unit 233. The setting information will be described later. The control unit 234 controls each unit of the wireless relay device 230.

Note that the wireless communication unit 231 is realized by, for example, a wireless communication module. The wired communication unit 232 is realized by, for example, a wired communication module. The storage unit 233 is realized by a storage unit such as a memory or a hard disk. The control unit 234 is realized by, for example, a CPU that executes processing according to program control and a plurality of circuits.

According to the control of the control unit 234, the wireless relay device 230 receives packets (specifically, for example, packetized information (communication information)) received by the wired communication unit 232 from the other wireless relay device. Wirelessly transmit to 210, 220, and 240. In addition, the wireless relay device 230 transmits a packet received by the wireless communication unit 231 to the wireless base station 331 according to the control of the control unit 234, or the wireless communication unit 231 receives another wireless relay device. Wirelessly transmit to 210, 220, 240.

FIG. 7 is an explanatory diagram illustrating an example of setting information stored in the storage unit 233 in the wireless relay device 230 according to the first embodiment. The setting information is information indicating the maximum amount of traffic for each route in the stored wireless relay device. In this example, the contents of the setting information are stored in the storage unit 233 in a table format.

FIG. 7 illustrates that the setting information indicates that the traffic on the route A in the wireless relay device 230 is limited to 200 Mbps. FIG. 7 illustrates that the setting information indicates that the traffic on the route B in the wireless relay device 230 is limited to 100 Mbps.

A configuration example of the radio relay device 230 will be described with reference to FIG. 6, and hereinafter, the radio relay devices 210, 220, and 240 are also described as having the same configuration as that of the radio relay device 230. 210 to 240 may be configured to be different from each other. The storage units of the wireless relay devices 210, 220, and 240 store setting information having contents corresponding to the wireless relay devices 210, 220, and 240. Further, the communication management apparatus 100 may be configured to store similar setting information so as to synchronize with the setting information stored in each of the radio relay apparatuses 210 to 240. Each of the radio relay apparatuses 210 to 240 may be configured to communicate with the communication management apparatus 100 via an adjacent apparatus.

Next, the operation of the communication management apparatus 100 according to the first embodiment will be described. FIG. 8 is a flowchart illustrating the operation of the communication management apparatus 100 according to the first embodiment. As shown in FIG. 8, the communication management apparatus 100 investigates the operation status of each of the radio relay apparatuses 210 to 240 (step S101). Note that, in the process of step S101, the communication management apparatus 100, for example, based on the content of the information indicating the operation status received from each of the wireless relay apparatuses 210 to 240 at a predetermined timing, Aggregate operating status. And the communication management apparatus 100 updates the content of the statistical information memorize | stored in the memory | storage part 110 according to the result of the process of step S101 (step S102). Therefore, the communication management apparatus 100 acquires statistical information when the communication unit 120 receives information indicating an operation state.

Note that the communication management device 100, for example, in the wireless communication performed by each of the wireless relay devices 210 to 240, when the modulation method is changed to a modulation method with a smaller multi-value number or a modulation method with a larger multi-value number, It may be configured to execute the process of step S102.

In this example, the wireless communication environment between the wireless relay device 230 and the wireless relay device 240 deteriorates, the maximum amount of traffic on the route A in the wireless relay device 230, and the maximum amount of traffic on the route A in the wireless relay device 240. Is reduced from 200 Mbps to 100 Mbps. Then, in the process of step S101, the communication management apparatus 100 receives the information indicating that the maximum amount of traffic on the path A is 100 Mbps from the wireless relay apparatus 230, and the communication management apparatus 100 receives the information from the wireless relay apparatus 240. Information indicating that the maximum amount of traffic is 100 Mbps. And the communication management apparatus 100 updates the content of the statistical information memorize | stored in the memory | storage part 110 by the process of step S102 based on those information which the communication part 120 received.

Based on the contents of the statistical information updated in the process of step S102, the setting information of each of the wireless relay devices 210 to 240, and the device configuration information stored in the storage unit 110, the communication management device 100 It is determined whether or not the setting information stored in the relay devices 210 to 240 is updated (step S103).

In this example, the content related to the route A in the statistical information is updated in the process of step S102. Therefore, the communication management device 100 determines the traffic between the route A and the route B between the mobile terminal 610 and the mobile terminal 620 based on the device configuration information stored in the storage unit 110 in the process of step S103. It is determined that an attempt is made to update the allocation.

Specifically, the control unit 130 of the communication management apparatus 100 determines to reduce the route A traffic from 200 Mbps to 100 Mbps and to try to increase the route B traffic from 100 Mbps to 200 Mbps. Then, the control unit 130 of the communication management apparatus 100 identifies a section that does not overlap with the path A in the path B (that is, a section in which traffic increases due to a change in traffic assignment). Then, the control unit 130 of the communication management device 100 determines that the section from the wireless relay device 230 to the communication device 410 via the wireless relay device 210 does not overlap based on the information of the neighboring device in the device configuration information. Can be identified. Therefore, the control unit 130 of the communication management device 100 changes the traffic on the route B from 100 Mbps to 200 Mbps based on the value of the wireless processing capacity of the wireless relay device 210 in the device configuration information and the current traffic amount of the wireless relay device 210. It is determined whether or not it can be increased. Note that the current traffic amount of the wireless relay device 210 can be calculated by the sum of the maximum traffic values of the wireless relay device 210 in the statistical information. In the example illustrated in FIG. 4, the sum of the maximum traffic values of the wireless relay device 210 is 100 Mbps. In the example illustrated in FIG. 5, the wireless processing capacity of the wireless relay device 210 is 200 Mbps. Therefore, the control unit 130 of the communication management apparatus 100 determines that the traffic on the route B can be increased from 100 Mbps to 200 Mbps, and decides to update the setting information stored in each of the radio relay apparatuses 210 to 240. (Y in step S103), the process proceeds to step S104.

In step S104, the control unit 130 of the communication management apparatus 100 updates the setting information stored in each of the wireless relay devices 210 to 240 via the communication unit 120 (step S104).

In this example, the communication management apparatus 100 stores the contents of the route B traffic from 100 Mbps to 200 Mbps and the route A traffic from 200 Mbps to 100 Mbps in the wireless relay devices 210 to 240 in the process of step S104. Update the setting information.

Then, each of the radio relay apparatuses 210 to 240 transmits / receives 100 Mbps information of the traffic between the mobile terminal 610 and the mobile terminal 620 via the path A and transmits / receives 200 Mbps via the path B. To work. That is, in each of the radio relay apparatuses 210 to 240, the amount of traffic transmitted / received via the route A is limited to 100 Mbps, and the amount of traffic transmitted / received via the route B is released to 200 Mbps. The amount of traffic may be limited by shaping or policing.

According to this embodiment, the communication management apparatus 100 investigates the wireless communication environment in each of the wireless relay apparatuses 210 to 240. Then, the communication management apparatus 100 updates at least a part of the assignment destination route of the traffic by updating the setting information stored in each of the wireless relay apparatuses 210 to 240 according to the investigation result. Therefore, when communication is performed via a plurality of paths configured by connecting the wireless relay apparatuses 210 to 240 to each other in a network, when the wireless communication environment in one path deteriorates, the other path Can be assigned traffic. Therefore, it is possible to appropriately control traffic in the communication network.

In the above-described example, transmission / reception of information between the mobile terminal 610 and the mobile terminal 620 is performed via the radio base station 322, the radio relay apparatuses 220 and 210, the communication apparatuses 410 and 420, and the radio base station 351. The route and the route through the wireless base station 322, the wireless relay devices 220, 210, 230, and 240, the communication device 420, and the wireless base station 351 are not employed, but such a route may be employed. That is, it may be configured such that the traffic assignment is changed in a plurality of three or more routes. In this example, for example, information between the mobile terminal 630 in a range communicable with the radio base station 321 and the mobile terminal 640 in a range communicable with the radio base station 311 is obtained by the radio base station 321, the radio It is performed via the relay devices 220 and 210 and the wireless base station 311, and the information is transmitted and received between the mobile terminal 610 and the mobile terminal 620 between the wireless relay device 220 and the wireless relay device 210. Suppose that the route via the wireless communication section is not adopted.

In the example described above, the wireless communication environment between the wireless relay device 230 and the wireless relay device 240 is deteriorated, and the maximum amount of traffic in the section between the wireless relay device 230 and the wireless relay device 240 in the path A is 200 Mbps. In response to the decrease to 100 Mbps, the control unit 130 of the communication management apparatus 100 updates the setting information stored in each of the wireless relay apparatuses 210 to 240 to adjust the traffic amount of each path. However, according to the present embodiment, the wireless communication environment between the wireless relay device 230 and the wireless relay device 240 is improved, and the traffic in the section between the wireless relay device 230 and the wireless relay device 240 on the route A is the highest. Even when the amount increases, the control unit 130 of the communication management apparatus 100 can update the setting information stored in each of the wireless relay apparatuses 210 to 240 and adjust the traffic amount of each path. .

In the setting information, the maximum amount of traffic may be set according to the type of traffic in each route. The type of traffic is, for example, the value of ToS (Type of Service) in the header of an IP packet being sent or received, or the CoS (Ethernet trademark) header added to a frame in a VLAN (Virtual Local Area Network) ( It is identified by the value of Class of Service), VID (VLAN IDentifier), or the like.

In the communication management apparatus 100, the wireless relay apparatuses 210 to 240 generate one or a predetermined number of packets that cannot be transmitted due to deterioration of the wireless communication environment with the transmission destination wireless relay apparatus. In such a case, the process of step S104 may be executed.

As described above, in this example, the wireless communication unit 231 performs wireless communication with the other wireless relay apparatuses 210 and 220 by appropriately switching the modulation method according to the wireless communication environment using the adaptive modulation and coding method. Therefore, the maximum amount of traffic indicates the employed modulation scheme. Therefore, the communication management apparatus 100 changes the modulation scheme employed depending on whether the value of the maximum amount of traffic received this time from each of the radio relay apparatuses 210 to 240 has changed with respect to the value received last time. It can be identified whether or not. Further, the communication management apparatus 100 may be configured to receive information indicating the modulation scheme employed from each of the radio relay apparatuses 210 to 240. Then, the communication management apparatus 100 identifies whether or not the value of the maximum amount of traffic has changed according to whether or not the modulation scheme indicated by the currently received information is different from the modulation scheme indicated by the previously received information. Thus, it can be determined whether or not to execute the process of step S104.

In the example described above, the start point and the end point are described as the mobile terminals 610 and 620 in both the route A and the route B. In other words, in the example described above, the start point and end point of the route from which the traffic allocation is changed are the same as the start point and end point of the change destination route. However, if a part of the route from which the traffic assignment is changed and a part of the route to which the assignment is changed overlap, the start point and the end point of these routes may be different from each other.

FIG. 9 is an explanatory diagram showing an example of routes having different start points and end points at the traffic allocation change source and the change destination.

FIG. 9 shows a route C (a route indicated by a one-dot chain line in FIG. 9) in addition to the routes A and B shown in FIG. Since other configurations are the same as the example shown in FIG. 1, the corresponding components are denoted by the same reference numerals as those in FIG.

A route C is a route of information (traffic) transmitted and received between the mobile terminal 630 in a range communicable with the radio base station 321 and the mobile terminal 640 in a range communicable with the radio base station 311. It is. Specifically, the route C is a route through the wireless base station 321, the wireless relay devices 220, 230, and 210, and the wireless base station 311 as shown in FIG. 9.

Therefore, in the route A and the route C, the sections between the wireless relay device 220 and the wireless relay device 230 overlap.

Therefore, the control unit 130 of the communication management device 100, for example, when the wireless communication environment between the wireless relay device 230 and the wireless relay device 240 deteriorates and the traffic on the route A is reduced from 200 Mbps to 100 Mbps by 100 Mbps, The setting information stored in each of the wireless relay apparatuses 210 to 240 may be updated so as to increase the traffic of C by 100 Mbps.

According to such a configuration, traffic (communication capacity) that the user of the mobile terminals 610 and 620 can no longer use is used by the user of the mobile terminals 630 and 640 and the communication capacity is provided to other users. Can do.

Note that the control unit 130 of the communication management apparatus 100 reduces the traffic allocated to the traffic of the route A, and the traffic that can be allocated to another route is, for example, the route B according to the QoS (Quality of Service) setting or the like. And the route C may be assigned at an arbitrary ratio.

Embodiment 2. FIG.
Next, the communication management apparatus 10 of 2nd Embodiment is demonstrated with reference to drawings. FIG. 10 is a block diagram illustrating a configuration example of the communication management apparatus 10 according to the second embodiment. As illustrated in FIG. 10, the communication management device 10 according to the second embodiment includes an information acquisition unit 12 and a traffic amount setting unit 13.

The information acquisition unit 12 corresponds to, for example, the communication unit 120 in the first embodiment illustrated in FIG. The traffic amount setting unit 13 corresponds to the control unit 130 in the first embodiment shown in FIG.

The information acquisition unit 12 is transmitted and received between one communication terminal (for example, equivalent to the mobile terminal 610 shown in FIG. 1) and the other communication terminal (for example, equivalent to the mobile terminal 620 shown in FIG. 1). Statistical information, which is information corresponding to the communication status, is acquired from a plurality of relay devices (for example, corresponding to the wireless relay devices 210 to 240 shown in FIG. 1) that constitute the communication information path that is information.

The traffic volume setting unit 13 sets the traffic volume of the communication information path in a plurality of relay devices according to the statistical information acquired by the information acquisition unit 12.

Here, a plurality of routes (for example, route A and route B shown in FIG. 1) in which at least some sections are parallel to each other are configured by the plurality of relay devices.

According to the present embodiment, the information acquisition unit 12 acquires statistical information from a plurality of relay devices that configure a plurality of routes in which at least some sections are parallel to each other.

The traffic volume setting unit 13 sets the traffic volume of each route based on the statistical information.

Therefore, it is possible to appropriately control traffic in the communication network.

Embodiment 3. FIG.
Next, the communication management apparatus 30 of 3rd Embodiment is demonstrated with reference to drawings. FIG. 11 is a block diagram illustrating a configuration example of the communication management device 30 according to the third embodiment. As illustrated in FIG. 11, the communication management device 30 according to the third embodiment includes a traffic amount setting unit 33.

The traffic volume setting unit 33 corresponds to the control unit 130 in the first embodiment shown in FIG.

The traffic amount setting unit 33 is a communication device that forms a communication network in which a plurality of communication information paths are configured (for example, wireless relay devices 210 to 240 that form a communication network in which the routes A and B shown in FIG. 1 are configured). ), The traffic volume is set for each route.

In addition, the traffic volume setting unit 33 performs communication with one communication device (for example, the wireless relay device 230 illustrated in FIG. 1) on the first route (for example, the route A illustrated in FIG. 1) among the plurality of routes. When the bandwidth of a section (for example, a section between the wireless relay device 230 and the wireless relay device 240 shown in FIG. 1) that does not overlap with the second route (for example, the route B shown in FIG. 1) changes. Then, the traffic amount corresponding to the fluctuation is set in the other communication devices (for example, the wireless relay devices 210 and 220 shown in FIG. 1) on the second route.

According to the present embodiment, in the first route, when communication is performed by one communication device and the bandwidth of a section that does not overlap with the second route varies, another communication on the second route A traffic amount corresponding to the fluctuation is set in the apparatus.

Therefore, it is possible to appropriately control traffic in the communication network.

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

Some or all of the above embodiments can be described as in the following supplementary notes, but are not limited thereto.

(Supplementary note 1) Information for acquiring statistical information, which is information corresponding to the communication status, from a plurality of relay devices constituting a path of communication information that is information transmitted and received between one communication terminal and the other communication terminal Acquisition means;
Traffic amount setting means for setting the traffic amount of the route of the communication information to the plurality of relay devices according to the statistical information acquired by the information acquisition means,
The communication management apparatus, wherein the plurality of relay apparatuses constitute a plurality of the paths in which at least some sections are parallel to each other.

(Supplementary Note 2) The communication information is transmitted and received for each packet via one of the plurality of routes.
The communication management device according to claim 1, wherein the traffic volume setting unit sets the traffic volume to the relay device configuring each path so as to allocate a traffic volume corresponding to each path according to the statistical information.

(Supplementary Note 3) When the statistical information indicates that the communication status of any of the plurality of routes has changed to a predetermined value, the traffic volume setting unit may The communication management device according to appendix 1 or appendix 2, wherein the set traffic amount is updated.

(Supplementary Note 4) Each relay device stores setting information in which the maximum traffic volume of communication information to be transmitted and received is set for each route,
4. The communication according to claim 1, wherein the traffic volume setting unit updates the traffic volume set in the relay apparatus by updating the setting information stored in the relay apparatus. Management device.

(Additional remark 5) The said traffic amount setting means updates the traffic amount set to the said relay apparatus based on the said statistical information and the radio | wireless processing capacity of the said relay apparatus, Any one of Additional remarks 1 to 4 The communication management device according to 1.

(Appendix 6) The communication management device according to any one of Appendix 1 to Appendix 5,
A communication system comprising the relay device.

(Supplementary note 7) Information for obtaining statistical information, which is information corresponding to the communication status, from a plurality of relay devices constituting a path of communication information that is information transmitted and received between one communication terminal and the other communication terminal An acquisition step;
A traffic amount setting step of setting a traffic amount of a route of the communication information in the plurality of relay devices according to the statistical information acquired in the information acquisition step,
The communication management method, wherein a plurality of the paths in which at least some sections are parallel to each other are configured by the plurality of relay devices.

(Supplementary Note 8) The communication information is transmitted and received for each packet via any of the plurality of routes,
The communication management method according to claim 7, wherein, in the traffic volume setting step, the traffic volume is set in the relay device configuring each path so as to allocate a traffic volume corresponding to each path according to the statistical information.

(Supplementary Note 9) When the statistical information indicates that the communication status of any of the plurality of routes has changed in a predetermined manner in the traffic volume setting step, the traffic information is sent to the relay device according to the statistical information. The communication management method according to appendix 7 or appendix 8, wherein the set traffic volume is updated.

(Supplementary note 10) The communication management method according to any one of supplementary notes 7 to 9, and
The relay method includes a relay step in which the communication information is relayed according to the traffic volume set in the traffic volume setting step.

(Supplementary Note 11) A communication apparatus forming a communication network in which a plurality of paths of communication information are configured includes a traffic volume setting unit that sets a traffic volume for each path,
The traffic volume setting means includes
In the first route among the plurality of routes, when communication is performed by one communication device and the bandwidth of a section that does not overlap with the second route varies, other communication devices on the second route And setting a traffic volume according to the fluctuation.

(Supplementary Note 12) The communication management device according to Supplementary Note 11,
A communication system comprising the communication device.

This application claims priority based on Japanese Patent Application No. 2017-012454 filed on Jan. 26, 2017, the entire disclosure of which is incorporated herein.

10, 30, 100 Communication management device 12 Information acquisition unit 13, 33 Traffic volume setting unit 110, 233 Storage unit 120 Communication unit 130, 234 Control unit 210, 220, 230, 240 Wireless relay device 231 Wireless communication unit 232 Wired communication unit 311, 321, 322, 331, 351 Radio base station 410, 420 Communication device 610, 620, 630, 640 Mobile terminal

Claims (12)

Information acquisition means for acquiring statistical information, which is information according to the communication status, from a plurality of relay devices that constitute a path of communication information, which is information transmitted and received between one communication terminal and the other communication terminal;
Traffic amount setting means for setting the traffic amount of the route of the communication information to the plurality of relay devices according to the statistical information acquired by the information acquisition means,
The communication management apparatus, wherein the plurality of relay apparatuses constitute a plurality of the paths in which at least some sections are parallel to each other. The communication information is transmitted and received for each packet via any of the plurality of paths,
The communication management device according to claim 1, wherein the traffic volume setting unit sets the traffic volume in the relay device configuring each path so as to allocate a traffic volume corresponding to each path according to the statistical information. The traffic volume setting means, when the statistical information indicates that the communication status of any of the plurality of paths has changed a predetermined amount, the traffic volume set in the relay device according to the statistical information The communication management device according to claim 1 or 2. Each relay device stores setting information in which the maximum traffic volume of communication information to be transmitted and received is set for each route,
The traffic volume setting unit updates the traffic volume set in the relay device by updating the setting information stored in the relay device. Communication management device. 5. The traffic volume setting unit updates the traffic volume set in the relay apparatus based on the statistical information and a radio processing capacity of the relay apparatus. 5. Communication management device. The communication management device according to any one of claims 1 to 5,
A communication system comprising the relay device. Obtain statistical information, which is information according to the communication status, from a plurality of relay devices constituting a path of communication information, which is information transmitted and received between one communication terminal and the other communication terminal,
In accordance with the acquired statistical information, the traffic amount of the communication information path is set in the plurality of relay devices,
The communication management method, wherein a plurality of the paths in which at least some sections are parallel to each other are configured by the plurality of relay devices. The communication information is transmitted and received for each packet via any of the plurality of paths,
The communication management method according to claim 7, wherein the traffic volume is set in the relay device configuring each path so that the traffic volume corresponding to each path is allocated according to the statistical information. The traffic amount set in the relay device is updated according to the statistical information when the statistical information indicates that the communication status of any of the plurality of routes has changed a predetermined amount. The communication management method according to claim 8. Including the communication management method according to any one of claims 7 to 9,
The communication method, wherein the relay device performs a relay process of the communication information according to a set traffic amount. A communication apparatus that forms a communication network in which a plurality of communication information paths are configured includes a traffic volume setting unit that sets a traffic volume for each path,
The traffic volume setting means includes
In the first route among the plurality of routes, when communication is performed by one communication device and the bandwidth of a section that does not overlap with the second route varies, other communication devices on the second route And setting a traffic volume according to the fluctuation. The communication management device according to claim 11;
A communication system comprising the communication device.

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