KR20200144950A - Method for managing resource in wireless local area network and apparatus therefor - Google Patents

Abstract

The present invention relates to a method of managing resources and an apparatus therefor, capable of managing resources of an access point to ensure quality of service when a short-range wireless communication network is connected to a mobile communication network. According to an embodiment of the present invention, the method of managing resources allocated to each access point in an apparatus for managing resources, which is connectable to each of a wired communication network and a mobile communication network, includes: accessing the wired communication network to relay communication between an access point and the wired communication network; monitoring a state of a wired section connected to the wired communication network to access the mobile communication network when a failure is detected in the wired section, and check a throughput of the mobile communication network; checking a priority for each SSID of each access point, and distributing the checked throughput to each SSID based on the priority for each SSID; and allocating a bandwidth corresponding to the distributed throughput to an SSID of each access point.

Description

A method for managing resources in a short-range wireless communication network, and an apparatus therefor.

The present invention relates to a short-range communication control technology, and more particularly, to a resource management method for managing resources of an access point and an apparatus therefor so that quality of service is guaranteed when a short-range wireless communication network is connected to a mobile communication network.

As short-range wireless communication technology advances today, access points supporting Wi-Fi (Wireless Fidelity) are installed in various places.

In general, a plurality of access points are integrated into a Wi-Fi controller, and the Wi-Fi controller is connected to a backbone network, which is a wired communication network, through a wired cable. When the mobile terminal is wirelessly connected to the access point in such a network environment, the mobile terminal can receive a communication service through a path including an access point, a Wi-Fi controller, and a backbone network.

However, in general, the Wi-Fi controller is connected to the backbone network through a wired cable. However, when a failure occurs in the wired section connecting the backbone network, all access points connected to the Wi-Fi controller cannot provide Internet service to users. This happens.

In order to prepare for such a failure in the wired section, a dual communication module (e.g., a wired communication module and an LTE/5G communication module) that can be connected to each of the wired and wireless networks is mounted on the Wi-Fi controller, and if a failure occurs in the wired section, the A technology has emerged that continuously provides Internet services using a communication section.

However, when the Wi-Fi controller is connected through a wireless section rather than a wired section, resources that can be provided to the mobile terminal are limited compared to the existing wired section. That is, when the Wi-Fi controller is connected to the wireless section according to the failure of the wired section, the maximum bandwidth that can be provided is reduced compared to the wired section. In the state where the bandwidth is reduced in this way, if the quality of service is guaranteed to each access point equal to the state connected to the wired section, the quality of service may be degraded as a whole, rather than receiving a high-quality service for each mobile terminal. . For example, when a specific access point already occupies a large amount of bandwidth and provides an Internet service to a mobile terminal, another access point may provide a low-quality service having a low bandwidth to a mobile terminal connected to it.

The present invention has been proposed to solve this problem, and when an apparatus (eg, a Wi-Fi controller) controlling short-range wireless communication is connected to a mobile communication network, the throughput of the mobile communication network and the SSID (Service Set Identifier) of the access point are ) The purpose of this is to provide a resource management method and apparatus for improving the overall quality of service by allocating differential resources for each SSID in consideration of priority.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by examples of the present invention. In addition, it will be easily understood that the objects and advantages of the present invention can be realized by the means shown in the claims and combinations thereof.

In a resource management apparatus connectable to each of a wired communication network and a mobile communication network according to the first aspect of the present invention for achieving the above object, a method of managing resources allocated to each access point includes accessing the wired communication network Relaying communication between the point and the wired communication network; Monitoring a state of a wired section connected to the wired communication network, connecting to the mobile communication network when a failure in the wired section is detected, and checking a throughput of the mobile communication network; Checking the priority of each access point for each SSID, and distributing the checked throughput to each SSID based on the priority for each SSID; And allocating a bandwidth corresponding to the distributed throughput as an SSID of each access point.

In the step of checking the throughput, I_tbs, RI, and RB may be received from the mobile communication network, and the throughput may be checked using the I_tbs, RI, and RB.

In the step of checking the throughput, the I_tbs and tbs corresponding to the RB are extracted from a mapping table, and the tbs and the RI are multiplied to be calculated to check the throughput.

The method includes, after the allocating step, reconfirming the throughput of the mobile communication network; Redistributing the reconfirmed throughput for each SSID of each access point based on the priority of each SSID when the reconfirmed throughput varies outside a preset range; And re-allocating the bandwidth corresponding to the redistributed throughput to the SSID of each access point.

According to a second aspect of the present invention for achieving the above object, a resource management apparatus for managing resources allocated to each access point includes: a wired communication unit connected to a wired communication network; A long-distance wireless communication unit connected to a mobile communication network; An AP connection unit connecting to one or more access points; And connecting to the wired communication network using the wired communication unit, relaying communication between an access point and the wired communication network, monitoring a state of a wired section connected to the wired communication network, and detecting a failure in the wired section, the remote wireless communication unit. And a control unit that activates and connects to the mobile communication network.

The control unit checks the throughput of the mobile communication network and the priority of each SSID of each access point, distributes the checked throughput to the SSID of each access point based on the priority of each SSID, and a bandwidth corresponding to the distributed throughput Is assigned as the SSID of each access point.

The resource management apparatus according to an embodiment of the present invention allocates a differential bandwidth for each SSID in consideration of the throughput of the mobile communication network and the priority of each SSID of the access point when a wired section is connected to the mobile communication network due to a failure. By doing so, there is an advantage of preventing a phenomenon of monopolizing bandwidth in a specific access point and allocating stable resources to SSIDs with high priority.

In addition, since the resource management apparatus according to the embodiment of the present invention continuously monitors the throughput of the mobile communication network and changes the bandwidth for each SSID according to this throughput, it is actively allocated to the access point according to the state of the mobile communication network. It has the advantage of being able to manage resources.

The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with specific details for carrying out the present invention, so the present invention is described in such drawings. It is limited to matters and should not be interpreted.
1 is a diagram illustrating a communication system according to an embodiment of the present invention.
2 is a diagram illustrating a resource management apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a method of allocating resources for each access point when a failure occurs in a wired section in a resource management apparatus according to an embodiment of the present invention.
4 is a flowchart illustrating a method of reallocating resources for each access point according to a change in throughput of a mobile communication network in a resource management apparatus according to an embodiment of the present invention.

The above-described objects, features, and advantages will become more apparent through the following detailed description in connection with the accompanying drawings, whereby those of ordinary skill in the technical field to which the present invention pertains can easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a communication system according to an embodiment of the present invention.

As shown in FIG. 1, a communication system according to an embodiment of the present invention includes one or more access points 110, 120, and 130 and a resource management apparatus 200.

The mobile terminal 300 is a communication device supporting wireless LAN communication such as a smart phone, a tablet computer, and a notebook, and may wirelessly access the access points 110, 120, and 130 to use Internet services.

The access points 110, 120, and 130 are connected to the resource management device 200 by wire or wirelessly, and perform a function of connecting the mobile terminal 300 to a network. The access points 110, 120, and 130 are allocated bandwidth under the control of the resource management device 200. The access points 110, 120, and 130 transmit the SSID (Service Set Identifier) assigned to them to induce wireless access of the mobile terminal 300. The access points 110, 120, and 130 may support a communication standard according to IEEE 802.11 to form a wireless link with the mobile terminal 300. The access points 110, 120, and 130 may communicate with the mobile terminal 300 using a plurality of frequencies in different bands. In addition, one access point 110, 120, 130 may use a plurality of SSIDs. In this case, the access points 110, 120, and 130 may allocate different resources for each SSID.

The wired communication network 500 is a wired-based communication network including a wired backbone network, and includes a router, a hub, and a gateway.

The mobile communication network 400 includes a wireless backhaul and can wirelessly communicate with the resource management apparatus 200 through a base station. The mobile communication network 400 includes an LTE communication network, a 5G communication network, and the like.

The resource management device 200 is a device that manages the bandwidth of the access points 110, 120, and 130, and may be implemented by being integrated with a WiFi controller. The resource management device 200 is connected to any one of the mobile communication network 400 and the wired communication network 400, and is connected to a plurality of access points 110, 120, 130, and access points 110, 120, 130 ) And the communication network (400, 500).

The resource management device 200 is preferentially connected to the wired communication network 500 and relays communication between the wired communication network 500 and the access points 110, 120, and 130. On the other hand, when a failure occurs in the wired communication network 500, the resource management device 200 is connected to the mobile communication network 400 as a suboptimal solution, and relays communication between the mobile communication network 400 and the access points 110, 120, 130. . That is, the resource management device 200 preferentially connects to the wired communication network 500 and connects to the mobile communication network 400 due to a failure in the wired communication network 500, so that the path of the uplink data is the access point 110 , 120, 130), the resource management device 200 and the mobile communication network 400, and the path of the downlink data is the mobile communication network 400, the resource management device 200, and the access point (110, 120, 130). ).

When the resource management device 200 is connected to the mobile communication network 400, it checks the throughput of the mobile communication network 400 and the priority for each SSID, and accesses each throughput based on the throughput and the priority. By distributing to the SSIDs of the points 110, 120, and 130, the resource (i.e., bandwidth) corresponding to the distributed throughput is controlled to be allocated to the SSIDs of each access point 110, 120, 130,

2 is a diagram illustrating a resource management apparatus according to an embodiment of the present invention.

The resource management device 200 of FIG. 2 is a device that relays communication of the access points 110, 120, and 130 and manages and controls the resources of the access points 110, 120, 130, and includes a memory, a memory controller, and one or more. It may include a processor (CPU), a peripheral interface, an input/output (I/O) subsystem, an input device, and a communication circuit.

The memory may include high-speed random access memory, and may also include one or more magnetic disk storage devices, nonvolatile memory such as flash memory devices, or other nonvolatile semiconductor memory devices. Access to memory by other components such as the processor and peripheral interfaces can be controlled by the memory controller. The memory can store various types of information and program instructions, and programs are executed by the processor.

The peripheral interface connects the input/output peripheral device of the resource management device 200 to the processor and memory. One or more processors execute various software programs and/or instruction sets stored in the memory to perform various functions for the resource management apparatus 200 and process data. The I/O subsystem provides an interface between input and output peripherals, such as display devices and input devices, and peripheral interfaces.

The processor is a processor configured to perform an operation related to the resource management apparatus 200 and execute instructions. For example, by using instructions retrieved from a memory, the processor receives input and output data between components of the resource management apparatus 200 and You can control the operation. The communication circuit performs communication through an external port or by an RF signal. The communication circuit converts the electrical signal to an RF signal or vice versa, through which it can communicate with a communication network, other mobile gateway devices and communication devices.

As shown in FIG. 2, the resource management apparatus 200 according to an embodiment of the present invention includes an AP (AccessPoint) connection unit 210, a remote wireless communication unit 220, a wired communication unit 230, and a storage unit 240. And a control unit 250, and these components may be implemented by hardware or software, or through a combination of hardware and software.

The AP connection unit 210 is connected to one or more access points 110, 120, 130 by wire or wirelessly. The AP connection unit 210 includes a plurality of ports that can be wired to the access points 110, 120, and 130, and can be wired to the access points 110, 120, and 130 using a corresponding port and a wired cable. .

The long-distance wireless communication unit 220 performs wireless communication with a mobile communication network 400 such as Long Term Evolution (LTE), 5G, and Wibro. The long-distance wireless communication unit 220 may mount a modem that supports communication with the mobile communication network 400, such as an LTE communication modem and a 5G communication modem.

The long-distance wireless communication unit 220 is normally maintained in a deactivated state, and when a failure occurs in the wired communication network 500, it is activated by the control of the controller 250 to form a radio link with the base station of the mobile communication network 400. .

The wired communication unit 230 has a physical port capable of being connected to the wired communication network 500, and may be connected to the wired communication network 500 by wire using the physical port and a wired cable. The wired communication unit 230 is preferentially activated and connected to the wired communication network 500.

The storage unit 240 is a storage means such as a memory and a disk device, and may store service subscription information of each access point. In addition, the access points 110, 120, 130 may have different service subscription information, and the storage unit 240 includes service subscription periods, service types, and subscribers for each SSID of each access point 110, 120, 130 It stores service subscription information that records name, date of birth, and resource allocation priority.

In addition, the storage unit 240 stores a mapping table in which transport block size (I_tbs), the number of resource blocks (RB), and transport block size (tbs) are mapped. Here, I_tbs denotes an index of a transport block used for message transmission, a resource block (RB) denotes a resource block, and a transport block size (tbs) denotes the size of a transport block. The I_tbs and RB may be obtained from a base station of the mobile communication network 400.

The control unit 250 performs a function of overall controlling the resource management apparatus 200. Specifically, the controller 250 initially deactivates the long-distance wireless communication unit 220 and activates the wired communication unit 230. When the wired communication unit 230 is activated, the controller 250 monitors the state of a wired section between the wired communication unit 230 and the wired communication network 500 to check whether communication with the wired communication network 500 is disconnected. In this case, the controller 250 may periodically transmit a WAN Link down check and a Ping message to the wired communication network 500 using the wired communication unit 230 to check the state of the wired section. When it is determined that a failure has occurred in the wired section, the control unit 250 activates the long-distance wireless communication unit 220 to access the base station of the mobile communication network 400. When the long-distance wireless communication unit 220 normally connects to the mobile communication network 400, the control unit 250 may differentially allocate the bandwidth of each access point 110, 120, and 130. In other words, if the controller 250 is normally connected to the wired communication network 500, the bandwidth for the SSID of each access point 110, 120, 130 is not differentially allocated, but a failure occurs in the wired section and moves. When connected to the communication network 400, a differential bandwidth may be allocated for each SSID of the access points 110, 120, and 130. When the resource management apparatus 200 is connected to the mobile communication network 400, a bandwidth allocated for each SSID of each access point 110, 120, and 130 may be reduced.

The control unit 250 checks the throughput of the mobile communication network 400, checks the priority of each SSID of the access point in the storage unit 240, and then determines the throughput of each access point based on the throughput and the priority of each SSID. The SSIDs of (110, 120, 130) are differentially distributed, and resources (ie, bandwidth) corresponding to the distributed throughput are allocated for each SSID of each access point (110, 120, 130). The control unit 250 receives the number of Modulation Coding Scheme (MCS), Rink Index (RI), and Resource Block (RB) for a downlink channel from a base station of the mobile communication network 400 using the long-distance wireless communication unit 220 After that, I_tbs is extracted from the MCS, the number of I_tbs and the RBs and the mapped tbs are checked in the mapping table of the storage unit 240, and the result of multiplying the tbs and the RI can be checked as the throughput. In addition, the controller 250 may control a relatively large bandwidth to be allocated to an SSID having a high priority or a relatively low bandwidth to an access point having a lower priority.

3 is a flowchart illustrating a method of allocating resources for each access point when a failure occurs in a wired section in a resource management apparatus according to an embodiment of the present invention.

Referring to FIG. 3, when the resource management device 200 is initially driven, the remote wireless communication unit 220 is deactivated, but the wired communication unit 230 is activated and connected to the wired communication network 500 (S301).

Then, the controller 250 relays data between the access points 110, 120, and 130 connected through the AP connection unit 210 and the wired communication network 500. Next, the control unit 250 monitors the state of the wired section between the wired communication unit 230 and the wired communication network 500 to determine whether a failure occurs in the wired section (S303, S305). The controller 250 may periodically transmit a WAN Link down check and a Ping message to the wired communication network 500 using the wired communication unit 230 to check the state of the wired section.

As a result of the determination, when it is determined that a failure has occurred in the wired section, the control unit 250 activates the remote wireless communication unit 220 and uses the activated remote wireless communication unit 220 to the base station and the resource management device of the mobile communication network 400. (200) is connected (S307, S309).

When the remote wireless communication unit 220 connects to the mobile communication network 400, the control unit 250 transmits a message requesting the quality of the downlink channel to the base station of the mobile communication network 400 using the remote wireless communication unit 220. In response to this, a Modulation Coding Scheme (MCS), Rink Index (RI), and Resource Block (RB) number for a downlink channel are received from the base station.

Subsequently, the controller 250 extracts I_tbs from the MCS, and checks the number of I_tbs and the RBs and tbs mapped in the mapping table of the storage unit 240. Then, the control unit 250 verifies the result of multiplying the checked tbs and RI as the throughput of the mobile communication network 400 (S311).

Next, the control unit 250 checks the priority of each SSID of each access point 110, 120, 130 in the service subscription information of the storage unit 240 (S313). Subsequently, the control unit 250 distributes the checked throughput for each SSID of each of the access points 110, 120, and 130 based on the checked priority of each SSID of the access points 110, 120, and 130 (S315). That is, the controller 250 distributes relatively large throughput to SSIDs having a high priority, and distributes relatively small throughput to SSIDs having a low priority. For example, the estimated throughput of the mobile communication network 400 is 150 Mbps, the first priority SSID #1 is given only to the first access point 110, and the second priority SSID #2 is the third. SSID #3, which is given only to the access point 130 and has a priority of 3, is given to all of the first access point 110, the second access point 120, and the third access point 130, and the first priority. Suppose that the policy is that 50% of the throughput is distributed to the second priority, 30% of the throughput is distributed to the second priority, and 20% of the throughput is distributed to the third priority. In this case, the control unit 250 distributes 75Mbps to SSID#1, 45Mbps to SSID#2, and 30Mbps to SSID#3. At this time, the control unit 250 divides the throughput (i.e., 150 Mbps * 0.2) that can be allocated to the third priority by 3 according to the number of access points (i.e., 10 Mbps), and then divides the SSID of the first access point 110 10 Mbps is redistributed to #1, 10 Mbps is redistributed to SSID #2 of the second access point 120, and 10 Mbps is redistributed to SSID #3 of the third access point 130. When the throughput is distributed for each SSID, a total of 85 Mbps is distributed to the first access point 110, a total of 10 Mbps is distributed to the second access point 120, and a total of 55 Mbps is distributed to the third access point 130.

Next, the controller 250 allocates a bandwidth corresponding to the distributed throughput for each SSID of each access point 110, 120, and 130 (S317).

When the bandwidth is allocated for each SSID according to the throughput distribution, the data is processed according to the allowed bandwidth for each SSID of the access points 110, 120, and 130. That is, when a failure occurs in the wired section and the resource management device 200 is connected to the mobile communication network 400, the SSID of the access point 110, 120, 130 according to the priority of the SSID and the throughput of the mobile communication network 400 Different resources (ie, bandwidth) may be allocated for each. Accordingly, the SSID allocated with a higher bandwidth processes data at a relatively high speed, and the SSID allocated with a relatively low bandwidth processes data at a relatively slow speed.

Meanwhile, the bandwidth allocated to the access points 110, 120, and 130 is not fixed, but may fluctuate at any time according to a change in throughput of the mobile communication network 400.

4 is a flowchart illustrating a method of reallocating resources for each access point according to a change in throughput of a mobile communication network in a resource management apparatus according to an embodiment of the present invention.

The process according to FIG. 4 is performed after the resource management apparatus 200 is connected to the mobile communication network 400.

Referring to FIG. 4, when a preset throughput confirmation period arrives, the controller 250 transmits a message requesting the quality of the downlink channel to the base station of the mobile communication network 400 using the remote wireless communication unit 220. And, in response to this, a Modulation Coding Scheme (MCS), an RI, and the number of RBs for a downlink channel are received again from the base station. Subsequently, the controller 250 extracts I_tbs included in the MCS, and checks the number of I_tbs and the RBs and tbs mapped in the mapping table of the storage unit 240. Then, the control unit 250 reconfirms the result of multiplying the tbs and RI as the throughput of the mobile communication network 400 (S401).

Subsequently, the controller 250 compares the reconfirmed current throughput with the past throughput checked immediately before, and determines whether the throughput of the mobile communication network 400 has changed (S403). In this case, the controller 250 may calculate a difference between the current throughput and the past throughput, and determine that the throughput of the mobile communication network 400 has changed when the difference is outside a preset threshold range.

Next, as a result of the determination in step S403, if the throughput of the mobile communication network 400 does not change, the control unit 250 maintains the bandwidth for each SSID of the currently allocated access points 110, 120, and 130 as it is.

On the other hand, as a result of the determination in step S403, if the throughput of the mobile communication network 400 is changed, the control unit 250 determines the reconfirmed throughput based on the priority of each SSID of the access points 110, 120, and 130. 110, 120, and 130) are re-distributed for each SSID (S405). As the throughput of the reconfirmed mobile communication network 400 increases, the throughput redistributed by SSID of each access point 110, 120, 130 will also increase, and when the throughput of the reconfirmed mobile communication network 400 decreases, each access point ( 110, 120, 130) will also decrease the throughput redistributed by SSID.

Next, the control unit 250 allocates a bandwidth corresponding to the redistributed throughput to the SSIDs of the access points 110, 120, and 130 again (S407).

As described above, when the throughput of the mobile communication network 400 is varied, the bandwidth allocated to the SSIDs of the access points 110, 120, and 130 is enlarged or reduced.

The process according to FIG. 4 is repeatedly performed until the wired section is normally restored.

On the other hand, when the wired section is restored, the controller 250 deactivates the long-distance wireless communication unit 220 to disconnect the connection of the mobile communication network 400 with the base station, and the wired communication unit 230 is used to connect the wired communication network 500. Connect again. Further, the controller 250 relays communication between the wired communication network 500 and the access points 110, 120, and 130.

As described above, when the resource management apparatus 200 according to the embodiment of the present invention is connected to the mobile communication network 400 due to a failure in the wired section, the throughput of the mobile communication network 400 and the priority of each SSID By allocating a differential bandwidth for each SSID in consideration of, a phenomenon of monopolizing a bandwidth in a specific SSID is prevented, and a relatively high quality of service is guaranteed for an SSID having a high priority. In addition, the resource management apparatus 200 according to the embodiment of the present invention continuously monitors the throughput of the mobile communication network and changes the bandwidth for each SSID according to this throughput, so that the SSID is actively changed according to the state of the mobile communication network. You can manage allocated resources.

While this specification includes many features, such features should not be construed as limiting the scope or claims of the invention. In addition, features described in separate embodiments herein may be combined and implemented in a single embodiment. Conversely, various features described in a single embodiment herein may be individually implemented in various embodiments, or may be properly combined and implemented.

Although the operations have been described in a specific order in the drawings, it should not be understood that such operations are performed in a specific order as shown, or as a series of consecutive sequences, or that all described operations are performed to obtain a desired result. . Multitasking and parallel processing can be advantageous in certain environments. In addition, it should be understood that classification of various system components in the above-described embodiments does not require such classification in all embodiments. The above-described program components and systems may generally be implemented as a package in a single software product or multiple software products.

The method of the present invention as described above may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. This process can be easily carried out by a person of ordinary skill in the art to which the present invention pertains, and thus will not be described in detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those of ordinary skill in the technical field to which the present invention belongs. It is not limited by the drawings.

110, 120, 130: access point 200: resource management device
210: AP connection unit 220: remote wireless communication unit
230: wired communication unit 240: storage unit
250: control unit 300: mobile terminal
400: mobile communication network 500: wired communication network

Claims (8)

A method of managing resources allocated to each access point in a resource management device capable of connecting to each of a wired communication network and a mobile communication network,
Connecting to the wired communication network and relaying communication between an access point and the wired communication network;
Monitoring a state of a wired section connected to the wired communication network, connecting to the mobile communication network when a failure in the wired section is detected, and checking a throughput of the mobile communication network;
Checking the priority of each SSID of each access point, and distributing the checked throughput to each SSID based on the priority of each SSID; And
Allocating a bandwidth corresponding to the distributed throughput to the SSID of each access point; Resource management method comprising a. The method of claim 1,
The step of checking the throughput,
And receiving I_tbs, RI, and RB from the mobile communication network, and checking the throughput using the I_tbs, RI and RB. The method of claim 2,
The step of checking the throughput,
And extracting the I_tbs and tbs corresponding to the RB from a mapping table, multiplying the tbs and the RI, and checking the throughput. The method of claim 1,
After the allocating step,
Reconfirming the throughput of the mobile communication network;
Redistributing the reconfirmed throughput for each SSID of each access point based on the priority of each SSID when the reconfirmed throughput varies outside a preset range; And
Re-allocating the bandwidth corresponding to the redistributed throughput to the SSID of each access point; Resource management method further comprising. In a resource management device for managing resources allocated to each access point,
A wired communication unit connected to a wired communication network;
A long-distance wireless communication unit connected to a mobile communication network;
An AP connection unit for connecting to one or more access points; And
By connecting to the wired communication network using the wired communication unit, relaying communication between the access point and the wired communication network, monitoring the state of the wired section connected to the wired communication network, and detecting a failure of the wired section, the remote wireless communication unit Includes; a control unit that activates and accesses the mobile communication network,
The control unit,
Check the throughput of the mobile communication network and the priority of each SSID of each access point, distribute the checked throughput to the SSID of each access point based on the priority of each SSID, and distribute a bandwidth corresponding to the distributed throughput to each access point. Resource management device, characterized in that allocating to the SSID of. The method of claim 5,
The control unit,
A resource management apparatus comprising: receiving I_tbs, RI and RB from the mobile communication network, and checking the throughput using the I_tbs, RI and RB. The method of claim 6,
A storage unit for storing a table to which I_tbs, RB, and tbs are mapped; further includes,
The control unit,
And extracting the I_tbs and tbs corresponding to the RB from a table, multiplying the tbs and the RI, and checking the throughput. The method of claim 5,
The control unit,
When the throughput of the mobile communication network is rechecked and the throughput is changed beyond a preset range, the re-checked throughput is redistributed for each SSID of each access point based on the priority for each SSID, and a bandwidth corresponding to the distributed throughput Resource management device, characterized in that re-allocating the SSID of each access point.

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