Router, communication method, and computer program

Abstract

To set a communication line to be used for communication on the network side, either a wireless line or a wired line, in accordance with the time when a wired line becomes available. [Solution] The router comprises a communication unit capable of communicating with the network side via a wireless or wired line on the network side, an acquisition unit that acquires first contract information regarding the wired line from a contract management server via a wireless or wired line, a determination unit that determines whether the wired line can be used based on the first contract information, and a setting unit that sets the communication line of the communication unit based on the determination result of whether the wired line can be used.

Description

[Technical Field]

[0001] The present invention relates to a router, a communication method, and a computer program. [Background technology]

[0002] Conventionally, there is known a technology for providing a connection to a communication network by enabling the use of multiple communication lines (see, for example, Patent Document 1). In the technology described in Patent Document 1, when a wired line and a wireless line are available, the wired line is given a higher priority than the wireless line, and the communication line to be used is changed according to the priority. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-17011 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the above-mentioned conventional technology, it is conceivable that the priority of the wireless line will be given top priority until the wired line becomes available due to construction work for the wired line, but it is not possible to change the priority of the wired line to top priority in line with the time when the wired line becomes available.

[0005] The present invention has been made in consideration of these circumstances, and its purpose is to set up a communication line to be used for network-side communication, either a wireless line or a wired line, in accordance with the time when the wired line becomes available. [Means for solving the problem]

[0006] According to one aspect of the present invention, a router that connects a terminal side and a network side for communication includes a communication unit that can communicate with the network side via a wireless line or a wired line on the network side, an acquisition unit that acquires first contract information related to the wired line from a contract management server via the wireless line or the wired line, a determination unit that determines whether or not the wired line can be used based on the first contract information, and a setting unit that sets the communication line of the communication unit based on the determination result of whether or not the wired line can be used. The determination unit determines whether the wired line has not yet been opened based on the first contract information, and the setting unit switches the communication line used by the communication unit from the wireless line that has already been set to the wired line after the wired line has been opened. It is a router. One aspect of the present invention is a router in which, in the above-mentioned router, the setting unit sets the wireless line as the communication line used by the communication unit when the determination result indicates that the wired line has not yet been opened. One aspect of the present invention is the router described above, wherein the wireless line is initially set as the communication line used by the communication unit. One aspect of the present invention is a router as described above, which is equipped with a measurement unit that measures communication over the wired line, and the setting unit switches the communication line used by the communication unit from the wireless line to the wired line when the measurement unit confirms that the wired line is normal. One aspect of the present invention is a router for connecting a terminal side and a network side for communication, the router comprising: a communication unit capable of communicating with the network side via a wireless line or a wired line on the network side; an acquisition unit for acquiring first contract information related to the wired line from a contract management server via the wireless line or the wired line; a determination unit for determining whether the wired line can be used based on the first contract information; and a setting unit for setting a communication line for the communication unit based on a determination result of whether the wired line can be used; the determination unit determines whether the wired line has not yet been opened based on the first contract information; the setting unit additionally sets the wired line as a communication line to be used by the communication unit after the wired line has been opened, in addition to the wireless line that has already been set; and the setting unit sets priorities of the wireless line and the wired line to be used by the communication unit; The setting unit is a router that sets a higher priority for the wired line than for the wireless line. One aspect of the present invention is a router in which, in the above-mentioned router, the setting unit sets the wireless line as the communication line used by the communication unit when the determination result indicates that the wired line has not yet been opened. One aspect of the present invention is the router described above, wherein the wireless line is initially set as the communication line used by the communication unit. One aspect of the present invention is a router in which, in the above-mentioned router, the acquisition unit acquires second contract information regarding the wireless line from a contract management server via the wireless line or the wired line, the determination unit determines whether the wireless line can be used based on the second contract information, and the setting unit sets whether the wireless line can be used by the communication unit based on the determination result of whether the wireless line can be used after the wired line is opened. One aspect of the present invention is a router as described above, which is equipped with a measurement unit that measures communication over the wired line, and the setting unit sets the wired line of the communication unit to be unavailable when the measurement unit confirms an abnormality in the wired line. One aspect of the present invention is a router as described above, which is equipped with a measurement unit that measures communication over the wireless line, and the setting unit sets the wireless line of the communication unit to be unavailable when the measurement unit confirms an abnormality in the wireless line.

[0007] One aspect of the present invention is a method for communicating between a terminal and a network, the method comprising: a router for connecting a terminal to a network, the router comprising a communication unit capable of communicating with the network through a wireless line or a wired line on the network side; an acquisition step in which the router acquires first contract information related to the wired line from a contract management server through the wireless line or the wired line; a determination step in which the router determines whether the wired line can be used based on the first contract information; and a setting step in which the router sets the communication line of the communication unit based on the determination result of whether the wired line can be used. the determining step determines whether or not the wired line has not yet been opened based on the first contract information, and the setting step switches the communication line used by the communication unit after the wired line has been opened from the wireless line that has already been set to the wired line. It is a method of communication. One aspect of the present invention is a communication method in which a router that connects a terminal side and a network side is equipped with a communication unit that can communicate with the network side via a wireless line or a wired line on the network side, and the method includes an acquisition step in which the router acquires first contract information regarding the wired line from a contract management server via the wireless line or the wired line, a determination step in which the router determines whether the wired line can be used based on the first contract information, and a setting step in which the router sets a communication line for the communication unit based on the determination result of whether the wired line can be used, wherein the determination step determines whether the wired line has not yet been opened based on the first contract information, the setting step additionally sets the wired line as a communication line to be used by the communication unit after the wired line is opened, in addition to the wireless line that has already been set, and the setting step sets priorities of the wireless line and the wired line to be used by the communication unit, and the setting step gives a higher priority to the wired line than the wireless line.

[0008] In one aspect of the present invention, a router that connects a terminal side and a network side for communication includes a communication unit that can communicate with the network side via a wireless line or a wired line on the network side, and a computer of the router is caused to execute an acquisition step of acquiring first contract information related to the wired line from a contract management server via the wireless line or the wired line, a determination step of determining whether or not the wired line can be used based on the first contract information, and a setting step of setting the communication line of the communication unit based on the determination result of whether or not the wired line can be used. The determining step determines whether or not the wired line has not yet been opened based on the first contract information, and the setting step switches the communication line used by the communication unit after the wired line has been opened from the wireless line that has already been set to the wired line. It is a computer program. One aspect of the present invention is a router that connects a terminal side and a network side to communicate with the network side, the router having a communication unit that can communicate with the network side via a wireless line or a wired line on the network side; a computer of the router that executes the following steps: an acquisition step that acquires first contract information regarding the wired line from a contract management server via the wireless line or the wired line; a determination step that determines whether the wired line can be used based on the first contract information; and a setting step that sets the communication line of the communication unit based on the determination result of whether the wired line can be used; the determination step determines whether the wired line has not yet been opened based on the first contract information; the setting step additionally sets the wired line to the communication line to be used by the communication unit after the wired line is opened, in addition to the wireless line that has already been set; the setting step sets priorities of the wireless line and the wired line to be used by the communication unit; and the setting step gives the wired line a higher priority than the wireless line. [Effects of the Invention]

[0009] According to the present invention, it is possible to obtain an effect that it is possible to set the communication line to be used for communication on the network side, either a wireless line or a wired line, in accordance with the time when the wired line becomes available. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram illustrating an example of the configuration of a communication system according to an embodiment. [Figure 2] FIG. 1 is a diagram illustrating an example of the configuration of a telecommunications carrier facility according to an embodiment. [Figure 3] FIG. 2 is a diagram illustrating an example of the configuration of a router according to an embodiment. [Figure 4] 1 is a flowchart showing the procedure of a first example of a communication method according to an embodiment. [Figure 5] FIG. 1 is a diagram illustrating a first example of a communication method according to an embodiment. [Figure 6] FIG. 1 is a diagram illustrating a first example of a communication method according to an embodiment. [Figure 7] FIG. 1 is a diagram illustrating a first example of a communication method according to an embodiment. [Figure 8] 10 is a flowchart showing the procedure of a second example of a communication method according to an embodiment. [Figure 9] FIG. 10 is a diagram illustrating a second example of a communication method according to an embodiment. [Figure 10] FIG. 10 is a diagram illustrating a second example of a communication method according to an embodiment. [Figure 11] FIG. 10 is a diagram illustrating a second example of a communication method according to an embodiment. [Figure 12] FIG. 10 is a diagram illustrating a second example of a communication method according to an embodiment. [Figure 13] FIG. 10 is a diagram illustrating a second example of a communication method according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a diagram showing an example of the configuration of a communication system according to an embodiment, in which a router 1 communicatively connects a terminal side and a network side.

[0012] On the terminal side, the router 1 is communicatively connected to a wireless terminal 201 such as a smartphone via a wireless communication interface LB11 such as "Wi-Fi (registered trademark)." Also, on the terminal side, the router 1 is communicatively connected to a wired terminal 202 such as a personal computer (PC) via a wired communication interface LB12 such as RJ45. Also, on the terminal side, the router 1 is communicatively connected to an analog telephone 203 via an analog communication interface LB13 such as RJ11.

[0013] The wireless terminal 201, the wired terminal 202, and the analog telephone 203 can communicate with a network side such as the Internet NW via the router 1. In addition to communicating via the router 1, the wireless terminal 201 can also communicate with a network side such as the Internet NW via the wireless line LB2, for example, by connecting to a base station BS2 of a fifth generation mobile communication system (5G system).

[0014] On the network side, the router 1 is communicatively connected to an optical network terminal (ONU-OLT) 101 via a wired communication interface LA1, and can perform network-side communication such as the Internet NW via an optical line (hereinafter referred to as the optical line L101) via the ONU-OLT 101. The optical line L101 is an example of a wired line. On the network side, the router 1 is communicatively connected to, for example, a base station BS1 of a 5G system via a wireless line LA2, and can perform network-side communication such as the Internet NW via the wireless line LA2. However, when the optical line L101 is unavailable, such as before the optical line L101 is opened, the router 1 can perform network-side communication only via the wireless line LA2.

[0015] The router 1 can access the communication carrier facility 300 via a wireless line LA2 or an optical line L101.

[0016] 2 is a diagram showing an example of the configuration of a telecommunications carrier facility according to this embodiment. In FIG. 2, telecommunications carrier facility 300 includes fixed line contract management server 301, mobile phone line contract management server 302, and terminal management server 303.

[0017] The fixed-line contract management server 301 manages first contract information. The first contract information is contract information related to the optical line L101. The first contract information may include, for example, the opening construction date (scheduled opening date) of the optical line L101, a contract flag of the optical line L101 (ON (with contract) or OFF (without contract)), a contract speed of the upper line of the optical line L101 (none, 1 Gbps, 5 Gbps, or 10 Gbps), a regular communication time and next access interval with the telecommunications carrier facility 300 (usable for automatic linking before and after opening construction of the optical line L101), a contract flag of the internet service (ON (with contract) or OFF (without contract)) and a contract speed (1 Gbps, 5 Gbps, or 10 Gbps), a net filter, etc. This includes the contract flag for the service (optional security service) (ON (with contract) or OFF (without contract)), the contract flag for the nuisance call service (ON (with contract) or OFF (without contract)), the contract flag for the Hikari TV service (ON (with contract) or OFF (without contract)), the contract flag for the Hikari telephone service (ON (with contract) or OFF (without contract)), as well as information such as the telephone number and area code, the contract flag for the built-in wireless LAN service (ON (with contract) or OFF (without contract)), and a code to identify the telecommunications carrier.

[0018] The mobile phone line contract management server 302 manages second contract information. The second contract information is contract information related to the wireless line LA2. The second contract information includes, for example, contract information for the wireless line LA2 (whether there is a contract or not, contract period, etc.), user terminal identification information (MAC address), etc.

[0019] The router 1 acquires, via the terminal management server 303, first contract information managed by the fixed-line contract management server 301 and second contract information managed by the mobile phone line contract management server 302. For example, the router 1 acquires fixed-line contract information (opening construction date (scheduled opening date) of the optical fiber line L101, contract flag, and contract speed of the upper line) as the first contract information, and acquires contract information and user terminal identification information for the wireless line LA2 as the second contract information.

[0020] 3 is a diagram showing an example of the configuration of a router according to this embodiment. In FIG. 3, the router 1 includes a terminal-side communication unit 11, a network (NW)-side communication unit 12, a control unit 30, and a storage unit 50.

[0021] The terminal-side communication unit 11 communicates with the wireless terminal 201 via a wireless communication interface LB11. The terminal-side communication unit 11 also communicates with the wired terminal 202 via a wired communication interface LB12. The terminal-side communication unit 11 also communicates with the analog telephone 203 via an analog communication interface LB13.

[0022] The NW-side communication unit 12 can perform network-side communication via the optical line L101 using the wired communication interface LA1, and can also perform network-side communication via the wireless line LA2.

[0023] The control unit 30 is a CPU (Central Processing Unit), and executes various functions by calling and executing programs stored in the storage unit 50.

[0024] The control unit 30 includes, as its functions, a transfer unit 31, an acquisition unit 32, a determination unit 33, a setting unit 34, and a measurement unit 35. These functions of the control unit 30 are realized by the CPU executing a router program 51 stored in the storage unit 50.

[0025] The storage unit 50 is configured by a storage medium such as a hard disk drive (HDD), flash memory, electrically erasable programmable read-only memory (EEPROM), random access read / write memory (RAM), read-only memory (ROM), or any combination of these storage media. The storage unit 50 stores various data such as a router program 51 executed by the control unit 30 (CPU) and a routing table 52.

[0026] The forwarding unit 31 routes packets transmitted and received between the terminal side and the network side in accordance with the routing table 52. The routing table 52 stores information (route information) about the communication route connecting the terminal side and the network side.

[0027] The acquiring unit 32 acquires the first contract information regarding the optical line L101 from the telecommunications carrier equipment 300 via the wireless line LA2 or the optical line L101. For example, the acquiring unit 32 may acquire the first contract information regarding the optical line L101 from the telecommunications carrier equipment 300 via the wireless line LA2 before the optical line L101 becomes available. For example, the acquiring unit 32 may acquire the first contract information regarding the optical line L101 from the telecommunications carrier equipment 300 via the wireless line LA2 or the optical line L101 after the optical line L101 becomes available.

[0028] Furthermore, the acquiring unit 32 acquires the second contract information regarding the wireless line LA2 from the telecommunications carrier equipment 300 via the wireless line LA2 or the optical line L101. For example, the acquiring unit 32 may acquire the second contract information regarding the wireless line LA2 from the telecommunications carrier equipment 300 via the wireless line LA2 before the optical line L101 becomes available. For example, the acquiring unit 32 may acquire the second contract information regarding the wireless line LA2 from the telecommunications carrier equipment 300 via the wireless line LA2 or the optical line L101 after the optical line L101 becomes available.

[0029] The determination unit 33 determines whether the optical line L101 can be used based on the first contract information related to the optical line L101. For example, the determination unit 33 may determine whether the optical line L101 has not yet been opened based on the first contract information related to the optical line L101.

[0030] Furthermore, the determination unit 33 determines whether or not the wireless line LA2 can be used based on the second contract information related to the wireless line LA2.

[0031] The setting unit 34 sets the communication line of the NW-side communication unit 12 based on the determination result of the determination unit 33 as to whether the optical line L101 can be used. Specifically, the setting unit 34 sets either the wireless line LA2 or the optical line L101 as the communication line on the network side for the route information stored in the routing table 52.

[0032] The setting unit 34 may set up the communication line for the NW-side communication unit 12 based on the determination result by the determination unit 33 as to whether the wireless line LA2 is available.

[0033] The measurement unit 35 measures the communication on the optical line L101. The measurement unit 35 also measures the communication on the wireless line LA2.

[0034] Next, an example of the operation of the router 1 according to this embodiment will be described.

[0035] [Router operation example 1] 4 is a flowchart showing the procedure of Example 1 of the communication method according to this embodiment. Operation Example 1 of the router 1 according to this embodiment will be described with reference to FIG.

[0036] (Step S11) The determination unit 33 determines whether or not the optical line L101 has not yet been opened based on the first contract information related to the optical line L101. As a result, if the optical line L101 has not yet been opened (step S11, NO), the process proceeds to step S12. On the other hand, if the optical line L101 has already been opened (step S11, YES), the process proceeds to step S13.

[0037] (Step S12) The setting unit 34 sets the routing table 52 so that the wireless line LA2 is used as the communication line for the NW-side communication unit 12. With this setting, the transfer unit 31 uses the route RT1-1 as the communication path connecting the terminal side and the network side, as shown in Fig. 5. This allows the terminal side to communicate with the network side via the wireless line LA2.

[0038] As an initial setting of the routing table 52, the route RT1-1 may be set in advance so as to use the wireless line LA2 as the communication line of the NW-side communication unit 12. In this case, the setting of the routing table 52 (setting of the route RT1-1) in step S12 can be omitted.

[0039] (Step S13) The measurement unit 35 measures the communication on the optical line L101 and confirms that the optical line L101 is normal. If the optical line L101 is confirmed to be normal, the process proceeds to step S14.

[0040] On the other hand, if it is not confirmed that the optical line L101 is normal, the process proceeds to step S12. If it is not confirmed that the optical line L101 is normal, the transfer unit 31 uses the route RT1-1 as the communication path connecting the terminal side and the network side, and the wireless line LA2 is used as the communication line for the NW-side communication unit 12, as shown in Fig. 6. This allows the terminal side to communicate with the network side via the wireless line LA2.

[0041] (Step S14) The setting unit 34 switches the communication line used by the NW-side communication unit 12 from the wireless line LA2 to the optical line L101. Specifically, the setting unit 34 changes the setting of the routing table 52 from the wireless line LA2 to the optical line L101. With this setting change, as shown in Fig. 7, the transfer unit 31 uses the route RT1-2 as the communication path connecting the terminal side and the network side. This allows the terminal side to communicate with the network side via the optical line L101.

[0042] In the above-described router operation example 1, the terminal side can communicate with the network side through the wireless line LA2 until the optical line L101 becomes available. After that, when the optical line L101 becomes available, the terminal side can communicate with the network side through the optical line L101. Even after the optical line L101 is opened, the wireless line LA2 is not switched to the optical line L101 until the optical line L101 is confirmed to be normal, so the terminal side can communicate with the network side through the wireless line LA2.

[0043] [Router operation example 2] 8 is a flowchart showing the procedure of the second example of the communication method according to this embodiment. Operation example 2 of the router 1 according to this embodiment will be described with reference to FIG.

[0044] (Step S21) The determination unit 33 determines whether or not the optical line L101 has not yet been opened based on the first contract information related to the optical line L101. As a result, if the optical line L101 has not yet been opened (step S21, NO), the process proceeds to step S22. On the other hand, if the optical line L101 has already been opened (step S21, YES), the process proceeds to step S23.

[0045] (Step S22) The setting unit 34 sets the routing table 52 so that the wireless line LA2 is used as the communication line for the NW-side communication unit 12. With this setting, the forwarding unit 31 uses the route RT2-1 as the communication path connecting the terminal side and the network side, as shown in Fig. 9. This allows the terminal side to communicate with the network side via the wireless line LA2.

[0046] As an initial setting of the routing table 52, the route RT2-1 may be set in advance so as to use the wireless line LA2 as the communication line of the NW-side communication unit 12. In this case, the setting of the routing table 52 (setting of the route RT2-1) in step S22 can be omitted.

[0047] (Step S23) The measurement unit 35 measures the communication on the optical line L101 and confirms that the optical line L101 is normal. If the optical line L101 is confirmed to be normal, the process proceeds to step S24.

[0048] On the other hand, if it is not confirmed that the optical line L101 is normal, the process proceeds to step S22. If it is not confirmed that the optical line L101 is normal, the transfer unit 31 uses the route RT2-1 as the communication path connecting the terminal side and the network side, and the wireless line LA2 is used as the communication line for the NW-side communication unit 12, as shown in Fig. 10. This allows the terminal side to communicate with the network side via the wireless line LA2.

[0049] (Step S24) The setting unit 34 adds the optical line L101 in addition to the wireless line LA2 as a communication line to be used by the NW-side communication unit 12. Specifically, the setting unit 34 adds the optical line L101 in addition to the wireless line LA2 to the setting of the routing table 52. With this additional setting, the optical line L101 becomes available as a communication line to be used by the NW-side communication unit 12 in addition to the wireless line LA2.

[0050] (Step S25) The determination unit 33 determines whether the wireless line LA2 is available based on the second contract information related to the wireless line LA2. As a result, if the wireless line LA2 is available (step S25, YES), the process proceeds to step S27. On the other hand, if the wireless line LA2 is unavailable (step S25, NO), the process proceeds to step S26.

[0051] (Step S26) The setting unit 34 deletes the wireless line LA2 from the communication lines used by the NW-side communication unit 12. Specifically, the setting unit 34 deletes the wireless line LA2 from the setting of the routing table 52 and sets only the optical line L101. With this setting change, only the optical line L101 becomes available as a communication line used by the NW-side communication unit 12.

[0052] (Step S27) The setting unit 34 sets the priority of the communication lines used by the NW-side communication unit 12. Specifically, the setting unit 34 sets the priority of using the wireless line LA2 and the optical line L101 in the routing table 52. This priority may be set in advance in the router 1, or may be based on the contract for the optical line L101 or the wireless line LA2. For example, the setting unit 34 sets the priority of the optical line L101 higher than that of the wireless line LA2. As a result, the optical line L101 is preferentially used as the communication line on the network side.

[0053] (Step S28) The measurement unit 35 measures the communication on the optical line L101 and confirms that the optical line L101 is functioning normally. The measurement unit 35 also measures the communication on the wireless line LA2 and confirms that the wireless line LA2 is functioning normally. If it is confirmed that both the optical line L101 and the wireless line LA2 are functioning normally, the process proceeds to step S29. On the other hand, if it is confirmed that either the optical line L101 or the wireless line LA2 is not functioning normally, the process proceeds to step S30.

[0054] (Step S29) The setting unit 34 sets the communication line to be used by the NW-side communication unit 12 according to the priority of the communication line on the network side. For example, if the optical line L101 has a higher priority than the wireless line LA2, the transfer unit 31 uses the route RT2-2 as the communication path connecting the terminal side and the network side, as shown in FIG. 11. This allows the terminal side to communicate with the network side via the optical line L101. For example, if the wireless line LA2 has a higher priority than the optical line L101, the transfer unit 31 uses the route RT2-1 as the communication path connecting the terminal side and the network side, as shown in FIG. 12. This allows the terminal side to communicate with the network side via the wireless line LA2.

[0055] (Step S30) The setting unit 34 sets a normal communication line as the communication line on the network side. For example, if the measurement unit 35 confirms an abnormality in the wireless line LA2, the setting unit 34 sets the routing table 52 to indicate that the wireless line LA2 of the NW-side communication unit 12 is unavailable. As a result, as shown in FIG. 13, the transfer unit 31 uses the route RT2-2 as the communication path connecting the terminal side and the network side. As a result, the terminal side communicates with the network side only through the optical line L101. Conversely, if the measurement unit 35 confirms an abnormality in the optical line L101, the setting unit 34 sets the routing table 52 to indicate that the optical line L101 of the NW-side communication unit 12 is unavailable. As a result, the terminal side communicates with the network side only through the wireless line LA2.

[0056] In the above-described router operation example 2, the terminal side can communicate with the network side through the wireless line LA2 until the optical line L101 becomes available. After that, when the optical line L101 becomes available, the terminal side can communicate with the network side through either the optical line L101 or the wireless line LA2. Even if the optical line L101 is opened, the wireless line LA2 is not switched to the optical line L101 until the optical line L101 is confirmed to be normal, so the terminal side can communicate with the network side through the wireless line LA2. When both the optical line L101 and the wireless line LA2 are available, the network side communication line is used according to the priority of using the optical line L101 and the wireless line LA2. When both the optical line L101 and the wireless line LA2 are available, if either the optical line L101 or the wireless line LA2 is abnormal, the terminal side can communicate with the network side through the normal line.

[0057] According to the above-described embodiment, it is possible to obtain an effect that the communication line to be used for communication on the network side, either the wireless line LA2 or the optical line L101, can be set in accordance with the time when the optical line L101 becomes available.

[0058] In the above-described embodiment, the communication line to be used for network-side communication is automatically set, but the user may be allowed to select the communication line to be used for network-side communication at will.

[0059] This will enable, for example, improvements to the overall service quality of communications systems, thereby contributing to Goal 9 of the United Nations-led Sustainable Development Goals (SDGs), which is to "Build resilient infrastructure, promote sustainable industrialization and foster innovation."

[0060] Although an embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like are also included within the scope that does not deviate from the gist of the present invention.

[0061] In addition, a computer program for realizing the functions of each of the above-described devices may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read and executed by a computer system. Note that the "computer system" here may also include hardware such as an OS and peripheral devices. Furthermore, if a WWW system is used, the "computer system" also includes the homepage provision environment (or display environment). In addition, "computer-readable recording medium" refers to writable non-volatile memory such as a flexible disk, optical magnetic disk, ROM, or flash memory, portable media such as a DVD (Digital Versatile Disc), or a storage device such as a hard disk built into a computer system.

[0062] Furthermore, the term "computer-readable recording medium" also includes those that retain a program for a certain period of time, such as volatile memory (e.g., DRAM (Dynamic Random Access Memory)) within a computer system that serves as a server or client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by transmission waves in the transmission medium. Here, the "transmission medium" that transmits the program refers to a medium that has the function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may also be a program for implementing some of the functions described above, or may be a so-called differential file (differential program) that can implement the functions described above in combination with a program already stored in the computer system. [Explanation of symbols]

[0063] 1...router, 11...terminal side communication unit, 12...network (NW) side communication unit, 30...control unit, 50...storage unit, 31...transfer unit, 32...acquisition unit, 33...determination unit, 34...setting unit, 35...measurement unit, 51...router program, 52...routing table, 101...ONU-OLT, 201...wireless terminal, 202...wired terminal, 203...analog telephone, LA1, LB12...wired communication interface, LA2, LB2...wireless line, LB11...wireless communication interface, LB13...analog communication interface, BS1, BS2...base station, NW...Internet, 300...telecommunications carrier equipment, 301...fixed line contract management server, 302...mobile phone line contract management server, 303...terminal management server

Claims

1. In a router that connects a terminal and a network, a communication unit capable of communicating with the network side via a wireless line or a wired line on the network side; an acquisition unit that acquires first contract information related to the wired line from a contract management server via the wireless line or the wired line; a determination unit that determines whether or not the wired line can be used based on the first contract information; a setting unit that sets a communication line for the communication unit based on a result of determining whether the wired line can be used, the determination unit determines whether the wired line has not yet been opened based on the first contract information; the setting unit switches the communication line used by the communication unit from the already set wireless line to the wired line after the wired line is opened; Router.

2. the setting unit sets the wireless line as the communication line to be used by the communication unit when the determination result indicates that the wired line has not yet been opened. The router of claim 1 .

3. The wireless line is initially set as the communication line used by the communication unit. The router of claim 1 .

4. a measurement unit that measures communication over the wired line, the setting unit switches the communication line used by the communication unit from the wireless line to the wired line when the measurement unit confirms that the wired line is normal; The router of claim 1 .

5. A router that connects a terminal side and a network side for communication, a communication unit capable of communicating with the network side via a wireless line or a wired line on the network side; an acquisition unit that acquires first contract information related to the wired line from a contract management server via the wireless line or the wired line; a determination unit that determines whether or not the wired line can be used based on the first contract information; a setting unit that sets a communication line for the communication unit based on a result of determining whether the wired line can be used, the determination unit determines whether the wired line has not yet been opened based on the first contract information; the setting unit additionally sets the wired line in addition to the wireless line already set as a communication line to be used by the communication unit after the wired line is opened; the setting unit sets priorities of the wireless line and the wired line used by the communication unit; the setting unit sets a higher priority for the wired line than for the wireless line. Router.

6. the setting unit sets the wireless line as the communication line to be used by the communication unit when the determination result indicates that the wired line has not yet been opened. The router of claim 5 .

7. The wireless line is initially set as the communication line used by the communication unit. The router of claim 5 .

8. the acquiring unit acquires second contract information related to the wireless line from a contract management server via the wireless line or the wired line; the determination unit determines whether or not the wireless line is available based on the second contract information; the setting unit sets whether or not the wireless line of the communication unit can be used based on a determination result of whether or not the wireless line can be used after the wired line is opened. The router of claim 5 .

9. a measurement unit that measures communication over the wired line, the setting unit sets the wired line of the communication unit to be unavailable when the measurement unit confirms an abnormality in the wired line. The router of claim 5 .

10. a measurement unit that measures communication on the wireless line, the setting unit sets the wireless line of the communication unit to be unavailable when the measurement unit confirms an abnormality in the wireless line. The router of claim 5 .

11. A router that connects the terminal side and the network side for communication has a communication unit that can communicate with the network side through a wireless line or a wired line of the network side, an acquisition step in which the router acquires first contract information related to the wired line from a contract management server via the wireless line or the wired line; a determination step in which the router determines whether or not the wired line can be used based on the first contract information; a setting step in which the router sets a communication line for the communication unit based on a result of determining whether the wired line is available; Including, the determining step determines whether the wired line has not yet been opened based on the first contract information; the setting step includes switching the communication line used by the communication unit after the wired line is opened from the wireless line that has already been set up to the wired line; Communication method.

12. A router that connects a terminal side and a network side for communication has a communication unit that can communicate with the network side through a wireless line or a wired line of the network side, an acquisition step in which the router acquires first contract information related to the wired line from a contract management server via the wireless line or the wired line; a determination step in which the router determines whether or not the wired line can be used based on the first contract information; a setting step in which the router sets a communication line for the communication unit based on a result of determining whether the wired line is available; Including, the determining step determines whether the wired line has not yet been opened based on the first contract information; the setting step additionally sets the wired line in addition to the wireless line already set as a communication line to be used by the communication unit after the wired line is opened; the setting step sets priorities of the wireless line and the wired line used by the communication unit; the setting step assigns a higher priority to the wired line than to the wireless line; Communication method.

13. A router that connects the terminal side and the network side for communication has a communication unit that can communicate with the network side through a wireless line or a wired line of the network side, The router's computer an acquisition step of acquiring first contract information related to the wired line from a contract management server via the wireless line or the wired line; a determination step of determining whether or not the wired line can be used based on the first contract information; a setting step of setting a communication line of the communication unit based on a result of determining whether or not the wired line is available; Execute the determining step determines whether the wired line has not yet been opened based on the first contract information; the setting step includes switching the communication line used by the communication unit after the wired line is opened from the wireless line that has already been set up to the wired line; Computer program.

14. A router that connects a terminal side and a network side for communication has a communication unit that can communicate with the network side through a wireless line or a wired line of the network side, The router's computer an acquisition step of acquiring first contract information related to the wired line from a contract management server via the wireless line or the wired line; a determination step of determining whether or not the wired line can be used based on the first contract information; a setting step of setting a communication line of the communication unit based on a result of determining whether or not the wired line is available; Execute the determining step determines whether the wired line has not yet been opened based on the first contract information; the setting step additionally sets the wired line in addition to the wireless line already set as a communication line to be used by the communication unit after the wired line is opened; the setting step sets priorities of the wireless line and the wired line used by the communication unit; the setting step assigns a higher priority to the wired line than to the wireless line; Computer program.

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