KR20170041037A - Control and Management Server of Network System and Network Routing Method - Google Patents

Abstract

The present invention discloses a control management server of a network system and a network routing method, capable of providing compatibility with respect to dual routing protocols. According to one aspect of the present invention, the network routing method applied between a first wireless terminal and a second wireless terminal according to intervention of a control management server for registering and managing terminal information of each wireless terminal includes the steps of: generating a session ID for data communication from the first wireless terminal to the second wireless terminal among pre-registered wireless terminals, and setting an optimal path from the first wireless terminal to the second wireless terminal to register the optimal path as path information; informing the session ID and the information of and the optimal path to nodes including a base station or access point at a transmitting side and a receiving side included in the optimal path, an integrated gateway of the transmitting side and the receiving side, and at least one router that relays communication between gates; and registering, when the first wireless terminal moves from a communication area of a first integrated gateway to a communication area of a second integrated gateway, the second integrated gateway in the path information corresponding to terminal information of the first wireless terminal instead of the first integrated gateway.

Description

[0001] The present invention relates to a control management server and a network routing method for a network system,

The present invention relates to a network communication technology, and more particularly, to a control management server and a network routing method of a network system supporting data communication of a wireless terminal.

In general, communication networks such as LTE and Internet exist in various ways for data transmission and depend on wireless connection technology.

For example, in the 4G standard of the 3GPP, a mobile communication network standards organization, there is an evolved packet core (EPC) core network.

EPC includes P-GW and S-GW for providing mobility of a terminal, billing, interworking with a PDN (Packet Data Network), and is connected to an eNodeB of an access network. EPC uses a tunneling protocol called GTP (GPRS Tunneling Protocol) between eNodeB and S-GW and between S-GW and P-GW to provide mobility of the terminal.

However, the use of GTP causes an increase in overhead due to new IP address mapping and encapsulation & decapsulation for tunneling, which increases the load on the network.

On the other hand, Mobile IP is a technology for providing data transmission and mobility of terminals in the Internet. Mobile IP provides terminal mobility through IP address management and control mechanism in IP-based Internet network. However, Mobile IP has problems such as triangular problem, high latency, encapsulation & decapsulation process, and network load increase due to the operation mechanism.

Although the importance of inter-network routing is growing as the Internet is expanded all over the world, current routing architecture has many problems because it can not accommodate various requirements in terms of service quality and users.

In the emergence of IPv6 and the processing of large amounts of traffic in 4G networks, there is a need for a change in the current Internet routing architecture.

The biggest problem of the conventional Internet routing architecture is the scalability of the network. Such extensibility includes system capacity, packet switching capacity, available protocol addresses, and topology of the entire network. Since the volume of traffic on the network is explosively increasing, there is much overhead involved in routing information between routers have.

This is because the current routing protocol is being converted into a signaling protocol for Multiprotocol Label Switching (MPLS) and VPN, and in order to operate as a signaling protocol, the router maintains additional state information and always grasps whether the corresponding mechanism of the entire router is supported It must be. This performance and complexity overload is burdened on the routers that make up the network, and the current Internet routing architecture is overloaded.

Routing protocols should work effectively in the context of IPv6 and IPv4 coexistence. The current routing architecture does not guarantee full compatibility between the two domains because IPv4 and IPv6 can not use the same update message.

In addition, since the policy for determining the conventional routing architecture is temporarily determined in each AS (Autonomous System), the consistency of the policy between the routers is not completely managed, and there is no network model capable of performing the policy in a consistent manner .

Korean Patent Laid-open No. 10-2011-0061609 (Published date June, 2011)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a control management server and a network routing method of a network system for managing information of a wireless terminal.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

A network routing method between a first wireless terminal and a second wireless terminal according to an arbitration of a control management server for registering and managing terminal information of each wireless terminal according to an aspect of the present invention includes: Generating a session ID for data communication from the first wireless terminal to the second wireless terminal, setting an optimal path from the first wireless terminal to the second wireless terminal, and registering the optimal path as the path information; To the nodes including the transmitting side and the receiving side base station or access point included in the optimal path, the transmitting side and the receiving side integrated gateway, and at least one router relaying communication between the gates, Of the information; And when the first wireless terminal moves from the communication area of the first integrated gateway to the communication area of the second integrated gateway, the second integrated gateway is connected to the first integrated gateway in the communication area of the second integrated gateway, And registering the route information in the route information.

The control management server for establishing a communication path through nodes including an access point, a base station, a router and an integrated gateway according to another aspect of the present invention includes a user ID, an IP address, a MAC address, a session ID And a communication path information; The information of the other wireless terminal is retrieved from the storage unit according to a communication request of one wireless terminal among the previously registered wireless terminals and provided to the one wireless terminal, and among the nodes from the one wireless terminal to the other wireless terminal A path setting unit for determining an optimum path optimal for data transmission; And an advertisement unit for transmitting route information to all nodes corresponding to the determined optimal route.

According to the present invention, it is possible to provide compatibility with a dual routing protocol.

1 is a configuration diagram showing a network system according to an embodiment of the present invention;
2 is a configuration diagram showing a control management server according to an embodiment of the present invention;
FIG. 3A illustrates a process of registering a terminal information in a network system according to an embodiment of the present invention; FIG.
FIG. 3B illustrates a process of preparing communication information in a network system according to an embodiment of the present invention; FIG.
3C is a diagram illustrating a data transmission process in a network system according to an embodiment of the present invention.
FIG. 3D is a diagram illustrating a handover process when a network system according to an embodiment of the present invention is not in communication. FIG.
FIG. 3E is a diagram illustrating a handover process when communicating in a network system according to an embodiment of the present invention; FIG.
FIG. 3F is a diagram illustrating a communication process using a handover path in a network system according to an embodiment of the present invention. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, advantages and features of the present invention and methods of achieving them will be apparent from the following detailed description of embodiments thereof taken in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms " comprises, " and / or "comprising" refer to the presence or absence of one or more other components, steps, operations, and / Or additions.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. 1 is a block diagram illustrating a network system according to an embodiment of the present invention.

1, a network system 10 according to an embodiment of the present invention includes a plurality of wireless terminals 110, 120, etc, at least one access point 5G_AP1, 5G_AP2, 5G_AP3, A plurality of integrated gateways C_GW1 and C_GW2, a plurality of routers IR1 to IR6 and a control management server 200. The base stations 5G_eNodeB1 and 5G_eNodeB2 and 5G_eNodeB3,

The plurality of wireless terminals 110, 120, etc. include a transmitting terminal capable of performing network communication such as 5G, Internet of Things (IoT), and a smart grid, and a receiving terminal.

At least one of the access points 5G_AP1, 5G_AP2 and 5G_AP3 or the base stations 5G_eNodeB1 and 5G_eNodeB2 and 5G_eNodeB3 and ¨ can transmit packet and packet information of the transmitting terminal to the control management server 200 or the integrated gateway C_GW1 and C_GW2, .

Here, each of the access points 5G_AP1, 5G_AP2, and 5G_AP3, or each of the base stations 5G_eNodeB1, 5G_eNodeB2, and 5G_eNodeB3, can maintain and store the packet information of the received transmitting terminal. Here, the packet information may include at least one of a session ID, a user ID, an IP address, and a MAC address.

At least one of the access points 5G_AP1, 5G_AP2, 5G_AP3, or at least one of the base stations 5G_eNodeB1, 5G_eNodeB2 and 5G_eNodeB3 includes a session ID from the control management server 200 in the packet from the transmitting terminal, 2.5 Reconfigure the packet added to the layer and forward it to the integrated gateway (C_GW1, C_GW2, ¨).

The plurality of integrated gateways C_GW1 and C_GW2 can relay the packet of the transmitting terminal to the router of the next hop or deliver the packet from the router to the base station or the access point connected to the receiving terminal. Here, the integrated gateway (C_GW1, C_GW2, ¨) is an integrated gateway (Convergence Gateway) to which all 5G_eNodeBs can be connected.

Based on the routing information from the control management server 200, each unified gateway (e.g., C_GW1) on each transmission side can identify the router of the next hop to which the packet of the transmitting terminal is to be transmitted and deliver it to the router of the next confirmed hop . At this time, the integrated gateway (e.g., C_GW1) on each transmission side can store and manage the route information for each session ID.

The receiving side integrated gateway (e.g., C_GW2) forwards the packet from the router to a base station (e.g., 5G_eNodeB2) or an access point (e.g., 5G_AP2) connected to the receiving terminal.

Similarly, at least one router (one of IR1 to 6) that has received the packet confirms the device of the next hop to transmit the received packet based on the path information (session ID) from the control management server 200, And delivers the packet received by the device of the hop. Here, the routers IR1 to IR6 may be an internal router (IR). As described above, according to the present invention, the routers IR1 to IR6 can confirm the next hop using only the session ID without needing to check the route information separately.

Each of the routers IR1 to IR6 stores the information of the next hop for each session ID and can use it for packet relaying.

The control management server 200 registers terminal information of each wireless terminal in response to a request of a terminal requesting registration from among a plurality of wireless terminals 110, 120, and so on. Here, the terminal information may be a user ID, an IP address, a MAC address, a session ID, and communication path information. Here, the control management server 200 may be a single or a distributed server.

When the transmitting terminal requests information (IP address) of the receiving terminal, the control management server 200 searches and provides the receiving terminal's IP address based on the user ID of the receiving terminal transmitted together with the request. Thereafter, when communication to the receiving terminal is requested, the control management server 200 maps the transmitting terminal and the receiving terminal to each other based on the stored terminal information, and generates a session ID. Then, the control management server 200 sets an optimal path to the transmitting terminal and the receiving terminal, provides the optimum path to the nodes corresponding to the optimal path, and transmits the session ID to the corresponding nodes. The optimal path includes a data communication path from the first wireless terminal 110 to the second wireless terminal 120 during transmission of the first wireless terminal 110 and a data communication path from the second wireless terminal 120 to the second wireless terminal 120, And a data communication path from the terminal 120 to the first wireless terminal 110.

 The control management server 200 can update the terminal information when the terminal moves, and when the communication is in progress, the control management server 200 can reset the optimum path and provide the path to the nodes corresponding to the previous and the reset optimal path.

As described above, according to the embodiment of the present invention, a separate control management server for registering and managing terminal information and mediating the route setting is used, thereby reducing the load on the router that performs the conventional route setting and route notification.

In addition, the embodiment of the present invention can provide an efficient transmission path even in a handover of a wireless terminal in a network such as a 5G network, an IoT, and a smart grid, thereby improving network communication quality.

Hereinafter, a control management server according to an embodiment of the present invention will be described with reference to FIG. 2 is a configuration diagram illustrating a control management server according to an embodiment of the present invention.

2, the control management server 200 according to the embodiment of the present invention includes a storage unit 240, a registration unit 210, a route setting unit 220, and an advertisement unit 230.

The storage unit 240 stores a user name, a user ID, an IP address, a MAC address, a session ID, and a path information of each previously registered wireless terminal. And a terminal information table including at least one of the terminal information tables. In this case, the user name is a unique identifier of the user. In case the user uses a plurality of wireless terminals, the user name may be stored in the storage unit 240 separately.

Here, the path information is information on a path for data transmission of each wireless terminal, and only the integrated gateway information of each wireless terminal can be stored before the data transmission path of each wireless terminal is set.

The registration unit 210 registers the terminal information in the terminal information table using the packets received from the wireless terminals 110, 120, and so on. Here, the terminal information includes a user ID, an IP address, and a MAC address of each wireless terminal.

The path setting unit 220 maps mutually communicating wireless terminals to each other, generates a session ID, and calculates an optimal path for data communication.

In more detail, the path setting unit 220 may retrieve information of another wireless terminal corresponding to the user ID from the terminal information table according to a user ID request of another wireless terminal of one wireless terminal. In addition, the path setting unit 220 maps one wireless terminal and another wireless terminal according to a communication request of one wireless terminal and generates a session ID of one wireless terminal and another wireless terminal, respectively. The path setting unit 230 calculates an optimal path among the paths from one wireless terminal to another wireless terminal. At this time, the path setting unit 220 may store the session ID and the path information of the optimal path in the terminal information table.

Here, the method of setting the optimum path by the path setting unit 220 can be derived from the conventional technology, and thus a detailed description thereof will be omitted.

When confirming the movement of one wireless terminal from the integrated gateway which is changed and connected by the movement of one wireless terminal, the path setting unit 220 updates and sets the optimal path considering the change-connected integrated gateway.

If there is updated route information, the advertisement unit 230 can transmit the route information to the nodes corresponding to the optimal route. Here, the node corresponding to the optimal path may be a node included in the path at the time of transmission, for example, a base station or access point connected to the transmitting terminal, a transmitting side integrated gateway, at least one router for relaying, A connected base station or an access point and nodes included in the path used for reception.

At this time, the advertisement unit 230 may transmit the generated session ID together with the route information to the nodes corresponding to the optimal route.

As described above, the embodiment of the present invention can provide compatibility between two domains even when IPv6 and IPv4 coexist.

In addition, since the embodiment of the present invention performs routing by one server, it is possible to perform a consistent routing technique.

Hereinafter, a terminal registration and communication preparation process according to an embodiment of the present invention will be described with reference to FIGS. 3A to 3C. FIG. FIG. 3A is a diagram illustrating a process of registering a terminal information in a network system according to an embodiment of the present invention, and FIG. 3B is a diagram illustrating a process of preparing communication information in a network system according to an embodiment of the present invention. 3C is a diagram illustrating a data transmission process in a network system according to an embodiment of the present invention.

As shown in FIG. 3A, the first wireless terminal 110 must register the terminal in the network system before requesting communication.

First, the first wireless terminal 110 packetizes and delivers a session ID, an IP address, and a MAC address to the first access point 5G_AP1 or the first base station 5G_eNodeB1 connected thereto.

The first access point 5G_AP1 or the first base station 5G_eNodeB1 transmits the packet of the first wireless terminal 110 to the control management server 200. [

Then, the control management server 200 stores and manages the terminal information included in the received packet in the form of a table or a database. Hereinafter, the case where the terminal information is stored in the form of a table will be described as an example.

3B, the first wireless terminal 110 transmits a control message to the second wireless terminal 120 (i.e., the second wireless terminal 120) on the basis of the user ID of the second wireless terminal 120 to the control management server 200 in order to communicate with the second wireless terminal 120 ) ≪ / RTI > Here, the user ID may be a telephone number, an e-mail, a login ID, and the like.

When the control management server 200 receives the IP query including the user ID of the second wireless terminal 120, the control management server 200 searches the terminal information table of the IP address of the second wireless terminal 120, 110).

The first wireless terminal 110 packetizes its own IP address, the user ID and the IP address of the second wireless terminal 120, and transmits the packetized IP address to the first access point 5G_AP1 or the first base station 5G_eNodeB1 connected thereto And the first access point 5G_AP1 or the first base station 5G_eNodeB1 delivers the packet to the control management server 200. [

At this time, the control management server 200 searches the information of the second wireless terminal 120 from the terminal information table, and transmits the information of the first wireless terminal 110 and the second wireless terminal 120 And generates a session ID.

At the same time, the control management server 200 calculates an optimal path (data transmission path) in nodes logically or physically connected to the first wireless terminal 110 and the second wireless terminal 120, and stores the calculated path information And manage. At this time, the control management server 200 delivers the path information to all nodes included in the optimal path between the first wireless terminal 110 and the second wireless terminal 120. Here, the path information may include session ID information and next hop information.

3C, in order to transmit data to the second wireless terminal 120, the first wireless terminal 110 constructs a packet including data to be transmitted and its own IP address and MAC address, To the access point 5G_AP1 or the first base station 5G_eNodeB1.

Then, the first access point 5G_AP1 or the first base station 5G_eNodeB1 reconstructs the packet by adding session ID information to the received layer 2.5 layer, and transmits the reconfigured packet to the first integrated gateway C_GW1 of the transmitting side .

The first integrated gateway C_GW1 confirms the next hop to transmit the reconfigured packet based on the path information received from the control management server 200 and transmits the reconfigured packet to the first router IR1 do.

The first router IR1 delivers the reconfigured packet to the fourth router IR4, which is the next hop by the session ID. Thereafter, the same relay process is performed in another router included in the path information.

The second integrated gateway C_GW2 as the receiving side integrated gateway delivers the reconfigured packet to the second base station 5G_eNodeB2 or the second access point 5G_AP2 connected to the second wireless terminal 120 based on the path information.

The second base station 5G_eNodeB2 or the second access point 5G_AP2 connected to the second wireless terminal 120 transmits a packet including the packet having the session ID removed from the reconfigured packet, that is, the packet including the data, the IP address and the MAC address, To the wireless terminal (120).

Hereinafter, a handover process of the network system according to the embodiment of the present invention will be described with reference to FIGS. 3d to 3f. FIG. 3D is a diagram illustrating a handover process when the network system is not in communication in the network system according to the embodiment of the present invention. FIG. 3E is a diagram illustrating a handover process when a communication is in progress in a network system according to an embodiment of the present invention. And FIG. 3F is a diagram illustrating a communication process using a handover path in a network system according to an embodiment of the present invention.

As shown in FIG. 3D, the first wireless terminal 110 held by the user when the first wireless terminal 110 is not communicating after being registered is located in the communication area of the first integrated gateway C_GW1, C_GW5), the first wireless terminal 110 informs the control management server 200 of its handover. At this time, the first wireless terminal 110 may transmit a packet including a user ID, an IP, and a MAC address.

At this time, the fifth integrated gateway C_GW5 informs the control management server 200 of the user ID, IP, and MAC address of the first wireless terminal 110. [

Then, the control management server 200 compares the terminal information of the terminal information table with the user ID, the IP address, and the MAC address corresponding to the received packet, and transmits the path information of the first wireless terminal 110 to the first integrated gateway C_GW1 To the fifth integrated gateway C_GW 5 (see the upper table of FIG. 3).

Meanwhile, the handover process when the second wireless terminal 120 is not in a call can be performed in a manner similar to that of the first wireless terminal 110 described above.

Hereinafter, when the first wireless terminal 110 moves from the communication area of the first integrated gateway C_GW1 to the communication area of the fifth integrated gateway C_GW5 when the first wireless terminal 110 is communicating after being registered The handover process of FIG.

If the communication area is changed as the first wireless terminal 110 moves, the first wireless terminal 110 requests a connection to the fifth unified gateway C_GW5. At this time, the first wireless terminal 110 may transmit a user ID, an IP address, and a MAC address. The first wireless terminal 110 can transmit the IP address before the change even if the IP address is changed.

Then, the fifth integration gateway C_GW 5 informs the control management server 200 of the user ID, IP address, and MAC address of the connected first wireless terminal 110.

Then, the control management server 200 can confirm that the communication path of the first wireless terminal 110 is changed by referring to the path information of the terminal information table, and the resetting of the optimal path is necessary. Thereafter, the control management server 200 may re-calculate the data transmission path to reset the optimal path being used for communication between the first wireless terminal 110 and the second wireless terminal 120. [

Then, the control management server 200 transmits the path information of the reconfigured optimal path to the nodes corresponding to the path information of the previous and the re-established optimal path.

It can be seen that the nodes corresponding to the previous path information should no longer be involved in the communication between the first wireless terminal 110 and the second wireless terminal 120 as the reset path information is received. In addition, the nodes corresponding to the reset path information can relay the communication between the first wireless terminal 110 and the second wireless terminal 120 thereafter.

In the above-described embodiment, the case where the session ID is not separately updated when resetting the optimum path has been described as an example. Alternatively, however, the control management server 200 may update the session ID when resetting the optimal path.

Hereinafter, a process of data communication using the changed optimal path will be described with reference to FIG.

As shown in FIG. 3F, when the path information is updated as the first wireless terminal 110 moves, the first wireless terminal 110 constructs a packet composed of data, an IP address before the handover and a MAC address, To the connected fifth access point (C_GW5).

At this time, the fifth access point C_GW5 constructs a packet in which the session ID information is added to the received packet in the 2.5 layer, and transmits a packet including the data, the IP address, the session ID and the MAC address to the second integrated gateway (C_GW2).

The second integrated gateway C_GW2 delivers the packet received to the first router IR1, which is the next hop, based on the updated route information. When the second integrated gateway C_GW2 receives the packet, the second access point 5G_AP2 or the second base station 5G_eNodeB2 connected to the second wireless terminal 120 transmits the corresponding packet .

The second access point 5G_AP2 or the second base station 5G_eNodeB2 removes the session ID from the received packet and forwards the packet including the data, the IP address and the MAC address to the second wireless terminal 120. [

The second wireless terminal 120 may receive data from the first wireless terminal 110 and the second wireless terminal 120 may transmit the data to the first wireless terminal 110, The first wireless terminal 110 may transmit data to the first wireless terminal 110 through the request, route setting, and the like. As shown in FIG. 3F, the optimal path for the second wireless terminal 120 may be different from the optimal path for the first wireless terminal 110, and the session ID used for the data transmission may be different.

As described above, the embodiment of the present invention can reduce the burden on the network and provide a method of moving the wireless terminal, such as resource management, which is flexible in network control.

Further, the embodiment of the present invention can reduce the network load caused by overhead of conventional protocols, lookup time, table advertisement, reflesh processing, and the like.

While the present invention has been described in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the above-described embodiments. Those skilled in the art will appreciate that various modifications, Of course, this is possible. Accordingly, the scope of protection of the present invention should not be limited to the above-described embodiments, but should be determined by the description of the following claims.

Claims (10)

A network routing method between a first wireless terminal and a second wireless terminal in accordance with an arbitration of a control management server for registering and managing terminal information of each wireless terminal,
The second wireless terminal generates a session ID for data communication from the first wireless terminal to the second wireless terminal in response to a communication request of the first wireless terminal among the previously registered wireless terminals, Setting an optimal path to be registered as path information;
To the nodes including the transmitting side and the receiving side base station or access point included in the optimal path, the transmitting side and the receiving side integrated gateway, and at least one router relaying communication between the gates, Of the information; And
When the first wireless terminal moves from the communication area of the first integrated gateway that is the previous integrated gateway of the reception side to the communication area of the second integrated gateway that is the other integrated gateway of the reception side, Registering the second integrated gateway in the path information corresponding to the terminal information of the first wireless terminal
Lt; / RTI > The method of claim 1,
An IP address, and a MAC address of each wireless terminal connected to at least one access point or at least one base station, the control management server notifies the user ID, IP address, MAC address And registering the connection information
Lt; / RTI > The method of claim 1,
Updating the second integrated gateway to the route information by the control management server according to the user ID of the first wireless terminal, the IP address and the MAC address before the communication area is changed,
Lt; / RTI > 4. The method of claim 3, wherein if the first wireless terminal is in communication,
Wherein the control management server is configured to reestablish an optimal path through the second integrated gateway instead of the first integrated gateway; And
And notifying the optimal path to the nodes corresponding to the reset optimal path. The method of claim 1,
When the first base station or the first access point receives a packet including a user ID, an IP address, and a MAC address from the first wireless terminal, the session ID is added to the 2.5 layer of the OSI 7 layer to transmit the reconstructed packet Transmitting to the first integrated gateway; And
The first integrated gateway sending the reconfigured packet to the router of the next hop according to the best route among the at least one router
Lt; / RTI > The method of claim 1,
When the receiving integrated gateway receives the packet from the at least one router, transmitting the packet to the receiving base station or the access point; And
The receiving base station or the access point constructs a packet excluding the session ID from the packet and transmits the packet to the second wireless terminal
Lt; / RTI > The method of claim 1,
5G, IoT, and Smart Grid. A control management server for establishing a communication path through nodes including an access point, a base station, a router and an integrated gateway,
A storage unit for storing at least one of a user ID, an IP address, a MAC address, a session ID, and communication path information of each of the previously registered wireless terminals;
The information of the other wireless terminal is retrieved from the storage unit according to a communication request of one wireless terminal among the previously registered wireless terminals and provided to the one wireless terminal, and among the nodes from the one wireless terminal to the other wireless terminal A path setting unit for determining an optimum path optimal for data transmission; And
And for transmitting the route information to all nodes corresponding to the determined optimal route,
And a control management server. 9. The method of claim 8,
The path setting unit maps the information of one wireless terminal and another wireless terminal by referring to the storage unit, generates a session ID for communication between the wireless terminal and another wireless terminal,
Wherein the advertisement unit delivers the session ID to each node included in an access point, a base station, an integrated gateway, and an optimal path to which the one wireless terminal is connected. 9. The method of claim 8,
Wherein the route setting unit updates and sets the optimal route considering the changed connected integrated gateway when confirming the movement of the one wireless terminal from the integrated gateway changed by the movement of the one wireless terminal,
Wherein the advertisement unit delivers route information corresponding to the optimal route to the nodes included in the updated optimal route with the updated optimal route.

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