JP2011244428A - Terminal, home hub, and method of controlling visiting hub in virtual group for content sharing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To disclose a terminal, a home hub, and a method of controlling a visiting hub in a virtual group particularly for content sharing in relation to the terminal, the home hub, and the method of controlling a visiting hub.SOLUTION: A network identifier of a virtual group included in an access point is linked to a name of the virtual group and a name of a home hub for managing the virtual group in order to provide a geographical boundary to the virtual group. In addition, network information regarding a visiting virtual group is given to a terminal moving to the visiting virtual group in order to provide a method of controlling a home hub in the virtual group for making recognition to the virtual group and content sharing easier.

Description

  The present invention relates to a terminal, a home hub, and a visiting hub control method, and more particularly, to a terminal, a home hub, and a visiting hub control method in a virtual group for sharing content.

  When providing a content sharing service between group member devices forming each virtual group, it is necessary to more smoothly and conveniently share content with the group member devices or other virtual groups.

Therefore, the present invention has been made in view of the problems of the conventional terminal, home hub, and visit hub control method, and the object of the present invention is to enable continuous content sharing and transmission even during content movement. To provide a terminal, home hub, and visit hub control method in a virtual group for secure content sharing.
It is another object of the present invention to provide a terminal, home hub, and visited hub control method in a virtual group for content sharing that can reduce dependency on a server.

  It is another object of the present invention to provide a terminal, home hub, and visited hub control method in a virtual group for content sharing that can prevent a message path for searching for data from going through multihop.

  It is another object of the present invention to provide a terminal, home hub, and visited hub control method in a virtual group for content sharing, which can provide an optimum route for data transmission and content sharing.

  Another object of the present invention is to provide a terminal, home hub, and visited hub control method in a virtual group for content sharing that can provide effective routing when the terminal moves.

  In order to achieve the above object, a method for controlling a visit hub in a virtual group for content sharing according to the present invention includes a visit hub that manages the visit virtual group from a terminal that moves to the visit virtual group. Receiving a request for information about the network, transmitting information about the network of the visited virtual group to the terminal in response to the request, and using the information about the network of the visited virtual group by the terminal When temporarily registering with a visit virtual group, receiving information related to the visit virtual group from the terminal, and updating a hub list table preconfigured using information related to the visit virtual group It is characterized by having.

  The visited virtual group network includes the visited hub and at least one access point managed by the visited hub, and the information related to the visited virtual group network includes information related to the visited hub and at least one managed by the visited hub. Information about one access point may be included.

  The method may further include the step of coordinating with the terminal connected to the network of the home virtual group and the step of acquiring an identifier of the network of the home virtual group from the terminal.

  The method may further include configuring an access point list for at least one access point belonging to the home virtual group network using the home virtual group network identifier.

  An access point list for at least one access point belonging to the network of the visited virtual group managed by the visiting hub, and an access point list for at least one access point belonging to the network of the home virtual group managed by the home hub And a step of constructing the hub list table based on at least one access point list belonging to the network of the visited virtual group acquired by the exchange.

  The step of configuring the hub list table comprises identifying the network identifier of the home virtual group included in the access point list belonging to the network of the home virtual group to provide a geographical boundary for the home virtual group. The hub list table may be configured in conjunction with the home virtual group name and the name of the home hub that manages the home virtual group.

  The access point list belonging to the network of the home virtual group includes the home virtual group name, the name and IP address of a home hub that manages the home virtual group, the SSID and MAC address of at least one access point that is managed by the home hub, Information related to a content name belonging to the at least one access point and a geographical location of the hub may be included.

  The hub list table includes the home virtual group name, a home hub list for a home hub that manages the home virtual group, and an access point list for at least one access point managed by the home hub. The home hub list includes: The home hub name and the IP address of the home hub may be included, and the access point list may include an SSID and a MAC address of at least one access point managed by the home hub.

  In the case where a content request for the terminal is received from another visiting virtual group excluding the visiting virtual group, a step of notifying the terminal of the content request may be further included.

  A method for controlling a terminal in a virtual group for content sharing according to an embodiment of the present invention includes a network of the visited virtual group including a visited hub that manages a visited virtual group in which a terminal has moved to a home hub that manages the home virtual group. Requesting information about, a step of configuring a mapping table using information about the network of the visited virtual group received in response to the request, and temporary registration with the visited virtual group based on the mapping table And sharing content with the visited hub.

  The method may further include transmitting information related to the visited virtual group to the home hub.

  Obtaining a home virtual group network identifier from the home virtual group network, cooperating with the home hub, and transmitting the home virtual group network identifier to the home hub. But you can.

  If there is no information regarding the network of the visited virtual group in the mapping table, the method may further include requesting information regarding the network of the visited virtual group from the home hub.

  A visiting hub control method in a virtual group for content sharing according to an embodiment of the present invention includes a step of temporarily registering a terminal moved to a visited virtual group, and a step of sharing content with the temporarily registered terminal. including.

  An access point list for at least one access point belonging to a network of a home virtual group managed by a home hub located outside the visit virtual group, and the visit virtual group managed by the visit hub that manages the visit virtual group Exchanging with each other an access point list for at least one access point belonging to the network, and configuring a hub list table based on the access point list belonging to the network of the home virtual group acquired by the exchange; May further be included.

  The hub list table includes the visit virtual group name, a visit hub list for a visit hub that manages the visit virtual group, and an access point list for at least one access point managed by the visit hub. The visiting hub name and an IP address of the visiting hub may be included, and the access point list may include an SSID and a MAC address of at least one access point managed by the visiting hub.

  By using content-centric network technology that is not an IP-based Internet structure instead of the conventional technology, there is an effect that content can be shared and transmitted continuously even when content is moved.

  Further, according to the present invention, dependency on the server can be reduced by forming a user-centered virtual group.

  In addition, according to the present invention, a message path for searching for data by providing a geographical boundary by linking an access point name (SSID) of a virtual group to a virtual group name and a hub name managing the virtual group. Can be prevented from going through multi-hop.

  In addition, according to the present invention, for the purpose of data transmission and content sharing, an access point name (SSID) of a virtual group is linked to a virtual group name and a hub name that manages the virtual group to provide a geographical boundary. Can provide the optimal route.

  In addition, according to the present invention, the traffic transmitted to the terminal is forwarded to the visit group using the information related to the network of the visit virtual group provided by the terminal moved to the visit virtual group. Routing can be provided.

It is a figure which shows the flow of the data request | requirement between virtual groups when a terminal moves. It is a figure which shows the flow of control of the home hub in the virtual group for content sharing which concerns on one Embodiment of this invention. It is a figure which shows the hub list table which concerns on one Embodiment of this invention. It is a figure which shows the data request | requirement from the other virtual group which concerns on one Embodiment of this invention. It is a figure which shows the flow of control of the terminal in the virtual group for content sharing which concerns on one Embodiment of this invention. It is a figure which shows the flow of operation | movement between the terminal which concerns on one Embodiment of this invention, a home hub, and a visit hub. It is a figure which shows the flow of control of the visit hub in the virtual group for content sharing which concerns on one Embodiment of this invention.

  Hereinafter, a specific example of a mode for carrying out a terminal, home hub, and visit hub control method according to the present invention will be described with reference to the drawings. However, the present invention is not limited or limited by the embodiment. Moreover, the same referential mark shown in each drawing shows the same member.

  FIG. 1 is a diagram illustrating a flow of data request between virtual groups when a terminal moves.

  FIG. 1 shows that when a terminal 105 belonging to a home virtual group 101 visits a visit virtual group 121 and shares content with a terminal 125 or a visit hub 123 registered in the visit virtual group 121, the home hub of the home virtual group 101 3 shows a flow of data request between 103 and the visiting hub 123 of the visiting virtual group 121.

  The virtual groups 101 and 121 can send / receive data requests using various methods, and the solid lines shown in FIG. 1 indicate that the virtual groups 101 and 121 send / receive data requests using one of the methods. The dotted lines indicate that the virtual groups 101 and 121 transmit / receive data requests using another method.

  Referring to the flow of the data request shown by the solid line in FIG. 1, the data request from the terminal 105 that visited the visited virtual group 121 passes through the home hub 103, passes through the visited hub 123 and the relay station, and then enters the visited virtual group 121. It can be seen that the data is transmitted to the registered terminal 125.

  According to the flow of the data request shown by the solid line in FIG. 1, if the terminal 105 moves to another virtual group, a data request for the corresponding terminal is transmitted via a plurality of hops. In some cases, loss of radio resources becomes large.

  The dotted lines shown in FIG. 1 indicate that the virtual groups 101 and 121 send / receive data requests using another method according to an embodiment of the present invention.

  As can be seen from the dotted line in FIG. 1, the data request flows through tunneling, so that loss of radio resources of the virtual group is reduced and content can be shared efficiently.

  The virtual group considered in one embodiment of the present invention is a virtual group of the concept of overlay. Therefore, the virtual group area may not match the general IP subnet area. Further, the virtual group may include various IP subnets, and the communication environment of the devices included in the virtual group may be configured only by cellular communication.

  In such an environment, a transmission range of a general hub advertisement message may be limited to an IP subnet. Accordingly, if the IP subnet is different even within a certain virtual group, there is a possibility that the advertisement message of the hub transmitted to the IP broadcast within one virtual group may not be transmitted sufficiently.

  The virtual group may include various types of devices. For example, the device may be a cellular terminal, a terminal supporting the WiFi wireless protocol, a cellular (Access Point; AP), a WiFi wireless protocol access point. Various communication devices having a network function such as (AP) may be included.

  The virtual group may be represented by the hub and managed by the hub.

  The virtual group hub serves as a path between the virtual group and a different virtual group. That is, a hub of a specific virtual group can provide a service for sharing content by providing a connection with another virtual group.

  The hub of each virtual group can grasp information regarding the network of the virtual group such as a terminal or an access point belonging to the corresponding virtual group. In addition, the hubs of each virtual group may share various information (for example, an access point list, etc.) about the network of the virtual group and the hubs of different virtual groups not managed by itself. At this time, various information regarding the network of the virtual group may be used for the virtual group to share content with each other.

  Information exchanged between the hubs includes each virtual group name, a hub name managing each virtual group, and an IP address, at least one access point name (SSID) and MAC address belonging to the hub, and at least one access. Includes the name of the content belonging to the point.

  Also, information exchanged between hubs may include information related to the geographical location of each hub and information related to the communication environment associated with each hub, by exchanging such information with each other. It can provide geographical boundaries for virtual groups.

  Further, according to an embodiment of the present invention, each hub may link a virtual group network identifier belonging to a virtual group network with a virtual group name and a hub name that manages the virtual group.

  For example, each hub can be linked to a virtual group by linking (mapping) an access point name (SSID) that establishes a wireless environment within the virtual group to a virtual group name and a hub name that manages the corresponding virtual group. As a result, the devices in the virtual group can be mapped to the geographical position of each virtual group, and the visited virtual group to which the terminal has moved can be easily recognized.

  FIG. 2 is a diagram showing a flow of home hub control in a virtual group for content sharing according to an embodiment of the present invention.

  As shown in FIG. 2, the home hub receives a request for information on the network of the visited virtual group including the visited hub that manages the visited virtual group from a terminal that moves to the visited virtual group (S210).

  For example, the terminal may request information regarding the network of the visited virtual group via an information exchange message exchanged between the home hub and the terminal.

  In step S210, the visited virtual group network includes a visited hub and at least one access point managed by the visited hub, and the information regarding the visited virtual group network relates to the visited hub and at least one access point managed by the visited hub. Information may be included.

  The information regarding the at least one access point may include a network identifier of the virtual group, such as the SSID and MAC address of the at least one access point.

  The identifier of the virtual group network may be included in an access point list (AP List) belonging to the virtual group network.

  The terminal may configure the mapping table using information about the network of the visiting virtual group including the visiting hub that manages the visiting virtual group, and recognizes the new virtual group that the user has moved based on the mapping table. be able to.

  In response to a request from the terminal moving to the visited virtual group, the home hub transmits information regarding the network of the virtual group to the terminal (S220).

  The home hub receives information related to the visited virtual group from the terminal when the terminal temporarily registers in the visited virtual group using information related to the network of the visited virtual group (S230). At this time, the terminal temporarily registers in the visited virtual group using the information regarding the network of the visited virtual group received from the home hub.

  The home hub may receive information related to the virtual group that is temporarily joined from the terminal that is temporarily registered in the visited virtual group or information on the hub that is registered by the current terminal.

  The terminal first informs the home hub that it registered (subscribes) that it has moved to another virtual group by providing the above-mentioned information, and a data request message to be transmitted to itself via the home hub in the future. May be received.

  The home hub updates a preconfigured hub list table using information related to the visited virtual group (S240). Here, the hub list table is configured by hubs that manage virtual groups, and will be described in detail with reference to FIG.

  FIG. 3 is a diagram showing a hub list table according to an embodiment of the present invention.

  As shown in FIG. 3, the hub list table may include a home virtual group name 301, a home hub list 303 that manages the home virtual group, and at least one access point (AP) list 305 that belongs to the home hub.

  The home hub list 303 includes a home hub name 307 and an IP address 309 of the home hub, and the access point list 305 includes at least one access point name (SSID) 311 and ID (or MAC address) 313 belonging to the home hub. May be included.

  For example, assume that the current home virtual group name is MyHome, the home hub name is Hub1, and two access points AP1 and AP2 belong to the home hub.

  In this case, the home virtual group name 301 in the hub list table is MyHome, the hub name in the home hub list 303 is MyHome_Hub1, and the IP address of the home hub is 10.0.0.1.

  In addition, the access point name (SSID) 311 in the access point list 305 becomes MyHome_Hub1_AP1 and MyHome_Hub1_AP2 in conjunction with the home virtual group name MyHome and the home hub name Hub1 that manages the home virtual group. In this way, the network identifier of the virtual group included in the access point list belonging to the network of the virtual group is linked (mapped) to the home virtual group name and the home hub name that manages the home virtual group, so that the geography for the virtual group Can provide a realistic boundary.

  Such a hub list table may include not only a hub list for one virtual group but also a hub list for an adjacent visited virtual group or other virtual group. At this time, information on each hub list can be obtained by exchanging access point lists belonging to the network of each virtual group between the home hub and the hub that manages the visiting hub or other virtual group.

  Here, the access point list may be for at least one access point belonging to the network of the virtual group.

  That is, the home hub may form a hub list table by exchanging information (for example, an access point list) with a surrounding virtual group before the terminal moves to the visited virtual group as described above. The pre-configured hub list table may be updated by receiving information related to the visited virtual group by moving.

  Further, the home hub may store an access point list physically connected to the corresponding hub when the hub list is configured. The configuration of the hub list table will be described later.

  The home hub may have difficulty recognizing communication environment information including at least one access point in the virtual group. Accordingly, the home hub may acquire communication environment information in the virtual group when performing association with a terminal connected to the network of the home virtual group.

  That is, the home hub cooperates with a terminal connected to at least one access point that is connected to the physical network of the home virtual group and constructs a wireless environment, and acquires the network identifier of the home virtual group from the terminal. As a result, the communication environment information in the virtual group can be acquired. The identifier of the home virtual group network may include the SSID and MAC address of at least one access point belonging to the home virtual group network.

  In order to provide the home virtual group network identifier to the home hub, the terminal may obtain the home virtual group network identifier from the home virtual group network prior to association with the home hub.

  In addition, the home hub acquires information (for example, the SSID and MAC address of the access point) about the access point in the virtual group by communicating with the terminal in the virtual group using an SMS message or E-Mail. Also good.

  In particular, when the terminal performs wireless WiFi communication, information on the access point can be transmitted to the home hub more conveniently.

  The home hub may configure an access point list for at least one access point belonging to the network of the home virtual group using the network identifier of the home virtual group acquired from the terminal.

  The access point list configured by the home hub includes a home virtual group name, a home hub name managing the home virtual group, and an IP address, an SSID and a MAC address of at least one access point managed by the home hub, and at least one access. Information related to the content name belonging to the point and the geographical location of the hub may be included.

  The home hub may exchange such an access point list with a visiting virtual group outside the home virtual group or with a hub of another virtual group. That is, the home hub has an access point list for at least one access point belonging to the network of the visiting virtual group managed by the visiting hub, and access to at least one access point belonging to the network of the home virtual group managed by the home hub. The point list may be exchanged with each other.

  Further, each of the home hub and the visiting hub may configure a hub list table as shown in FIG. 3 based on the exchanged access point lists.

  FIG. 4 is a diagram illustrating a data request from another virtual group according to an embodiment of the present invention.

  As shown in FIG. 4, after the terminal 410 belonging to the home virtual group 420 moves to the visiting virtual group 440 in order to share content with the terminal belonging to the visiting virtual group or the visiting hub 450, the other virtual group 460 is managed. The hub 470 may make a data request for the content of the terminal 410 belonging to the home virtual group.

  Here, the name of the home virtual group 420 is Domain2, the name of the home hub 430 is Hoon, and the content name to be shared is fun. Doc is assumed.

  For example, if the terminal 410 having the shared content (Domain2 / Hoon / fun.doc) moves to the visiting virtual group 440 (S401), the terminal 410 manages the visiting virtual group 440 to which the terminal 410 has moved to the home hub 430. Request and receive information regarding the network of the visit virtual group 440 including the visit hub 450 and temporarily register with the visit virtual group 440.

  At the same time, the terminal 410 registers the movement of the terminal 410 in the home hub 430 by transmitting information related to the current temporary visit virtual group 440 to the home hub 430 of the home virtual group 420 to which the terminal 410 originally joined. (S403). Here, the information related to the visit virtual group 440 may include information on the visit virtual group 440 and information on the currently registered visit hub 450.

  At this time, information regarding the virtual group to which the terminal 410 has moved (here, the visited virtual group 440) is transmitted only to the home hub 430 of the home virtual group 420, and does not need to be transmitted to the hubs of the entire virtual group.

  Also, the content request message from the other visit virtual group 460 excluding the visit virtual group 440 to the terminal 410 is transmitted only to the home hub 430 (S405), and does not need to be transmitted to the hub 470 of the other virtual group 460. Further, when the home hub 430 receives a content (Domain2 / Hoon / fun.doc) request message for the terminal 410 from another visiting virtual group 460 (more precisely, the hub 470) excluding the visiting virtual group 440, the terminal 410 The content request may be notified to (S407).

  According to the embodiment of the present invention, it is possible to support the optimum routing for the data request message from the other virtual group 460 when the terminal 410 including the content moves by the above procedure.

  FIG. 5 is a diagram illustrating a flow of terminal control in a virtual group for content sharing according to an embodiment of the present invention.

  As shown in FIG. 5, the terminal requests information on the network of the visited virtual group including the visited hub that manages the visited virtual group that the terminal has moved to the home hub that manages the home virtual group (S510).

  The terminal constructs a mapping table using the information about the visited virtual group network received in response to the request (S520).

  The information regarding the network of the visiting virtual group may include information regarding the visiting hub managing the visiting virtual group and at least one access point managed by the visiting hub.

  The terminal checks whether there is information about the visit virtual group network in the mapping table (S530). If there is information about the visit virtual group network in the mapping table, the terminal temporarily registers the visit virtual group based on the mapping table. This is performed (S560).

  In step S560, the information related to the visited virtual group network includes, for example, at least one access point name (SSID) belonging to the visited virtual group network to which the corresponding terminal is connected and information related to the visited hub that manages the corresponding access point. It may be.

  After the temporary registration, the terminal shares content with the visiting hub of the visiting virtual group (S570), and transmits information related to the visiting virtual group to the home hub (S580).

  If there is no information regarding the network of the visiting virtual group in the mapping table in step S530, the terminal requests the information regarding the visiting hub from the home hub (S540), receives the information regarding the visiting hub (S550), and then performs step S560. The following steps may be performed.

  In some embodiments, a terminal that has moved to a visited virtual group may directly recognize a terminal that belongs to the visited virtual group.

  In this case, the terminal that has moved to the visiting virtual group may directly request information regarding the network of the visiting virtual group, such as information regarding the access point and the visiting hub, from the terminal of the visiting virtual group.

  Therefore, the terminal that has moved to the visited virtual group can perform temporary registration in the visited virtual group without the step of configuring the mapping table based on the information related to the visited virtual group network.

  Here, it may be difficult for the home hub to recognize communication environment information including at least one access point in the virtual group. Therefore, as described above, when the terminal cooperates with the home hub, the terminal may provide the home hub with the network identifier of the home virtual group received from the network of the home virtual group. The operation between the terminal and the hub will be described in detail with reference to FIG.

  FIG. 6 is a diagram illustrating an operation flow among a terminal, a home hub, and a visiting hub according to an embodiment of the present invention.

  As shown in FIG. 6, each terminal 610, 620 of the home virtual group may obtain the network identifier of the home virtual group from the home virtual group network (S601). Here, the home virtual group network may include, for example, at least one access point 630, 640 belonging to the home virtual group network, and the home virtual group network identifier may include, for example, at least one access point 630, 640 SSID and MAC address may be included.

  Each terminal 610, 620 coordinates with the home hub 650 (S603), and transmits the network identifier of the home virtual group (the SSID and MAC address of the access points 630, 640) to the home hub 650 (S605).

  The home hub 650 may exchange access point lists with respect to at least one access point belonging to the network of each virtual group with the hub that manages the visiting hub 660 or another virtual group (S607).

  That is, the home hub 650 and the visit hub 660 include an access point list for at least one access point 630, 640 belonging to the network of the home virtual group managed by the home hub 650 located outside the visit virtual group, and the visit virtual group. The access point lists for at least one access point belonging to the network of visit virtual groups managed by the visit hub 660 managing each other may be exchanged.

  The home hub 650 may configure the hub list table as described above based on at least one access point list belonging to the network of the visited virtual group acquired by the exchange (S609). Further, the hub list table formed by the home hub may of course include the contents of the access point list for at least one access point belonging to the network of the home virtual group.

  FIG. 7 is a diagram illustrating a flow of control of a visit hub in a virtual group for content sharing according to an embodiment of the present invention.

  As shown in FIG. 7, the visiting hub in the virtual group for content sharing performs temporary registration for the terminal moved from the external virtual group to the visited virtual group (S710), and shares the content with the temporarily registered terminal. (S720).

  In addition, as described with reference to FIG. 6, the visiting hub includes an access point list for at least one access point belonging to the network of the home virtual group managed by the home hub located outside the visiting virtual group, and the visiting virtual Access point lists for at least one access point belonging to the network of visited virtual groups managed by the visiting hub managing the group may be exchanged with each other.

  The visiting hub acquires an access point list belonging to the network of the home virtual group by exchange and is based on the access point list for at least one access point belonging to the network of the virtual group managed by each hub exchanged with the home hub. The hub list table may be configured.

  Further, the hub list table configured by the visiting hub may of course include the contents of the access point list for at least one access point belonging to the network of the visited virtual group.

  Here, the hub list table configured by the visiting hub may include a visiting virtual group name, a visiting hub list that manages the visiting virtual group, and at least one access point list that belongs to the visiting hub.

  The visited hub list may include the visited hub name and the visited hub IP address, and the at least one access point list may include the SSID and MAC address of at least one access point belonging to the visited hub.

  The visited hub list may include a home hub name and the IP address of the home hub, and the at least one access point list may include an SSID and a MAC address of at least one access point belonging to the home hub.

  The same contents may be included in the case of a hub list table formed by the home hub.

  The method according to the present invention may be implemented by program instructions executed by various computers and recorded on a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the purposes of the present invention, and may be known and usable by those skilled in the art in the field of computer software. Good. Examples of computer-readable recording media include magnetic media such as hard disks, floppy (registered trademark) disks and magnetic tapes, optical recording media such as CD-ROMs and DVDs, and magnetic-lights such as floppy disks. A medium and a hardware device specially configured to store and execute program instructions such as ROM, RAM, flash memory, and the like are included. Examples of program instructions include not only machine language code generated by a compiler but also high-level language code that can be executed by a computer using an interpreter or the like.

  As described above, the present invention has been described with reference to the limited embodiments and the drawings, but the present invention is not limited to the above-described embodiments. Various modifications can be made without departing from the technical scope of the present invention.

  Accordingly, the scope of the present invention should not be determined by being limited to the embodiments described, but must be determined not only by the claims described below, but also by the equivalents of the claims.

101,420 Home virtual group 103,430,650 Home hub 105,125,410 Terminal 121,440 Visit virtual group 123,450,660 Visit hub 125 Terminal 140 Internet

Claims (16)

Receiving a request for information about a network of the visited virtual group including a visited hub managing the visited virtual group from a terminal moving to the visited virtual group;
In response to the request, transmitting information about the visited virtual group network to the terminal;
Receiving information related to the visited virtual group from the terminal when the terminal temporarily registers with the visited virtual group using information related to the network of the visited virtual group;
Updating a pre-configured hub list table with information associated with the visited virtual group;
A home hub control method in a virtual group for content sharing. The visited virtual group network includes the visited hub and at least one access point managed by the visited hub;
The virtual group for content sharing according to claim 1, wherein the information about the network of the visited virtual group includes information about the visited hub and information about at least one access point managed by the visited hub. Home hub control method. Linking with the terminal connected to the network of the home virtual group;
Obtaining an identifier of the network of the home virtual group from the terminal;
The home hub control method in the virtual group for content sharing according to claim 1, further comprising:   The content sharing method according to claim 3, further comprising: constructing an access point list for at least one access point belonging to the network of the home virtual group using an identifier of the network of the home virtual group. Home hub control method in a virtual group. An access point list for at least one access point belonging to the network of the visited virtual group managed by the visiting hub, and an access point list for at least one access point belonging to the network of the home virtual group managed by the home hub Exchanging with each other;
Configuring the hub list table based on at least one access point list belonging to the network of the visited virtual group obtained by the exchange;
The home hub control method in the virtual group for content sharing according to claim 4, further comprising:   The step of configuring the hub list table comprises identifying the network identifier of the home virtual group included in the access point list belonging to the network of the home virtual group to provide a geographical boundary for the home virtual group. 6. The method of controlling a home hub in a virtual group for content sharing according to claim 5, wherein the hub list table is configured in association with the home virtual group name and a home hub name that manages the home virtual group. .   The access point list belonging to the network of the home virtual group includes the home virtual group name, the name and IP address of a home hub that manages the home virtual group, the SSID and MAC address of at least one access point that is managed by the home hub, 6. The home hub control method in a virtual group for content sharing according to claim 5, further comprising information related to a content name belonging to the at least one access point and a geographical location of the hub. The hub list table includes the home virtual group name, a home hub list for a home hub that manages the home virtual group, and an access point list for at least one access point managed by the home hub;
The home hub list includes the home hub name and the IP address of the home hub,
2. The home hub control method in a virtual group for content sharing according to claim 1, wherein the access point list includes an SSID and a MAC address of at least one access point managed by the home hub.   The content sharing method according to claim 1, further comprising a step of notifying the terminal of the content request when receiving a content request for the terminal from another visited virtual group excluding the visited virtual group. Home hub control method in a virtual group. Requesting information regarding the network of the visited virtual group including the visited hub that manages the visited virtual group in which the terminal has moved to the home hub that manages the home virtual group; and
Configuring a mapping table using information about the network of the visited virtual group received in response to the request;
Performing temporary registration in the visited virtual group based on the mapping table;
Sharing content with the visiting hub;
A terminal control method in a virtual group for content sharing.   The method of claim 10, further comprising transmitting information related to the visited virtual group to the home hub. Obtaining an identifier of the home virtual group network from the home virtual group network;
Linking with the home hub;
Transmitting an identifier of the network of the home virtual group to the home hub;
The terminal control method in the virtual group for content sharing according to claim 10, comprising:   The content sharing method according to claim 10, further comprising: requesting the home hub for information regarding the network of the visited virtual group when there is no information regarding the network of the visited virtual group in the mapping table. Terminal control method in the virtual group. Performing temporary registration for the terminal moved to the visiting virtual group;
Sharing content with the temporarily registered terminal;
A visiting hub control method in a virtual group for content sharing. An access point list for at least one access point belonging to a network of a home virtual group managed by a home hub located outside the visit virtual group, and the visit virtual group managed by the visit hub that manages the visit virtual group Exchanging access point lists for at least one access point belonging to a network of
Configuring a hub list table based on the access point list belonging to the network of the home virtual group acquired by the exchange;
The visit hub control method in the virtual group for content sharing according to claim 14, further comprising: The hub list table includes the visit virtual group name, a visit hub list for a visit hub that manages the visit virtual group, and an access point list for at least one access point managed by the visit hub;
The visited hub list includes the visited hub name and the visited hub IP address;
The method of claim 15, wherein the access point list includes an SSID and a MAC address of at least one access point managed by the visiting hub.

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