WO2020122477A1

WO2020122477A1 - Communication method and device for supporting various interfaces, mobility and multicasting by using integrated planar id

Info

Publication number: WO2020122477A1
Application number: PCT/KR2019/016640
Authority: WO
Inventors: 권태경; 곽명철; 이현우; 이현민; 임정환; 최경재; 신유정
Original assignee: 서울대학교 산학협력단
Priority date: 2018-12-13
Filing date: 2019-11-28
Publication date: 2020-06-18

Abstract

A communication method and device for supporting various interfaces, mobility and multicasting by using an integrated planar ID are provided, and a device for performing communication can comprise: a mapping management unit for a managing terminal ID, which is fixed identification information for identifying a communication terminal, and a planar ID including information about a locator corresponding to the position of the communication terminal on a network; and a session management unit for managing a session of the communication terminal on the basis of the planar ID.

Description

Communication method and device supporting various interfaces, mobility, and multicasting using integrated flat ID

Embodiments disclosed herein are related to a variety of interfaces, mobility, and multicasting-supporting communication methods and devices utilizing integrated flat IDs, and more specifically, using integrated flat IDs to support various interfaces for each device. It relates to a communication method and apparatus for supporting mobility between networks and multicasting of data.

This research was conducted in 2019 with the support of the Ministry of Information and Communication Planning and Evaluation (No.2016-0-00160, future multidimensional network system architecture for service/terminal/network diversity support) Research)

The IP address is the information needed to identify and communicate with devices connected to the network.

As the mobile environment has grown, it has become important for devices to maintain mobility by rapidly changing the IP address representing a location on the network as physical movement is frequently performed.

In addition, it has become important to efficiently identify devices using only IP addresses in accordance with the use of technology to maintain multiple connections with homogeneous or heterogeneous links using multiple IP addresses, such as multihoming.

For this reason, there is a problem in performing the identification role and the location role (Locator) of the device using only the IP address in support of mobility and multicasting of data at the network stage.

In the related art, Korean Patent Publication No. 10-2013-0125055, which is a prior art document, relates to a network information control system and method using an IP address and a MAC address, and more specifically, a user may use a mobile terminal. When accessing to control various devices wirelessly, request authentication of the ID and password from the mobile terminal to the AP server, and then allocate and use the IP address. When the user accesses various devices with restricted access using a mobile terminal, the Mac address of the mobile terminal is transmitted to the device or the relay server, and then the AP server checks whether the IP address of the mobile terminal is correct. By receiving and using, it is possible to allow access to a normal mobile terminal and block access to an abnormal mobile terminal, thereby selectively limiting access to devices through a plurality of mobile terminals, and cannot solve the above-described problem.

Therefore, a technique for solving the above-described problem is needed.

On the other hand, the above-mentioned background technology is the technical information acquired by the inventor for the derivation of the present invention or acquired in the derivation process of the present invention, and is not necessarily a known technology disclosed to the general public before filing the present invention. .

The embodiments disclosed herein are intended to provide a communication method and apparatus supporting various interfaces, mobility, and multicasting using an integrated flat ID.

The embodiments disclosed herein have an object to provide a communication method and apparatus for separating a terminal ID, which is fixed identification information on a network constituting a flat ID, and a locator, which is location information on a network.

The embodiments disclosed herein have an object to provide a communication method and apparatus for registering and managing a flat ID for each device on a network.

The embodiments disclosed herein have an object to provide a communication method and apparatus for multicasting by managing and managing one or more flat IDs using an integrated ID representing a group.

The embodiments disclosed herein are intended to provide a communication method and apparatus for providing a socket library supporting both P2P communication while ensuring mobility.

As a technical means for achieving the above technical problem, according to an embodiment, in a device for managing communication using a flat ID, the terminal ID, which is fixed identification information for identifying the communication terminal, and the communication terminal on the network It may include a mapping management unit that manages a flat ID including information about a locator corresponding to a location, and a session management unit that manages a session of the communication terminal based on the flat ID.

According to another embodiment, in a method for a communication management apparatus to manage communication using a flat ID, information on a terminal ID, which is a fixed identification information for identifying a communication terminal, and a locator corresponding to the location of the communication terminal on a network. The step of registering the included flat ID and the step of managing the registered flat ID may be included.

According to another embodiment, as a computer-readable recording medium in which a program for performing a communication management method is recorded, the communication management method includes a terminal ID, which is fixed identification information for identifying a communication terminal, and the communication terminal on a network. The method may include registering a flat ID including information about a locator corresponding to a location and registering- managing a flat ID.

According to another embodiment, the communication management method is a computer program that is performed by a communication management apparatus and stored in a recording medium to perform a communication management method. The method may include registering a flat ID including information about a locator corresponding to the location of the communication terminal and managing the registered flat ID.

According to any one of the above-described problem solving means, it is possible to present a communication method and apparatus supporting various interfaces, mobility, and multicasting using an integrated flat ID.

According to any one of the above-described problem solving means, by using a terminal ID, which is a fixed identification information on a network constituting a flat ID, separating a location information locator on a network to increase service/content provider development efficiency and A communication method and apparatus capable of efficiently managing mobility can be provided.

According to any one of the above-described problem solving means, a communication method in which an existing session is maintained despite movement of a communication terminal through mapping management of a terminal ID and a locator by registering and managing a flat ID for each device on the network, and Device can be presented.

According to any one of the above-described problem solving means, it is possible to present a communication method and apparatus capable of multicasting by connecting and managing one or more flat IDs using an integrated ID representing a group.

According to any one of the above-described problem solving means, it is possible to present a communication method and apparatus capable of providing various interfaces through a socket library supporting both P2P communication while ensuring mobility.

The effects obtained in the disclosed embodiments are not limited to the above-mentioned effects, and other effects not mentioned are obvious to those skilled in the art to which the embodiments disclosed from the following description belong. Can be understood.

1 is a block diagram showing a communication management apparatus according to an embodiment.

2 to 3 are flowcharts for explaining a communication management method according to an embodiment.

4 is an exemplary diagram for explaining a communication management method according to an embodiment.

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below may be embodied in various different forms. In order to more clearly describe the features of the embodiments, detailed descriptions of the items well known to those of ordinary skill in the art to which the following embodiments pertain are omitted. In the drawings, parts irrelevant to the description of the embodiments are omitted, and like reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a component is "connected" to another component, this includes not only "directly connected" but also "connected with other components in between". In addition, when a configuration is said to "include" a configuration, this means that, unless specifically stated otherwise, it may mean that other configurations may be included as well.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

However, before explaining this, the meanings of terms used below are defined first.

Hereinafter,'Flex Idendtification' is information for identifying a communication terminal on a network, and may be composed of a name portion, which is information about the communication terminal, and an attribute portion, which is variable information for recording the context status.

In addition, the name portion of the flat ID may include, for example, a bit string for identifying a communication terminal, a service or content, and a bit, a segment bit, a terminal ID for cacheability, and the attribute portion of the flat ID is a current context (context). ) It can be composed of a variable bit string for recording the state.

In this case,'terminal ID' is identification information of a fixed communication terminal on the network, and'Locator' is information indicating the location of the device on the network, for example, may be a TCP/IP, MAC address, or the like.

In addition to the terms defined above, terms that require explanation will be described separately below.

1 is a block diagram illustrating a communication management device 10 according to an embodiment.

The communication management apparatus 10 may be implemented as a computer or a portable terminal, a television, a wearable device, or the like, which can connect to a remote server through a network N or connect to another terminal and a server. Here, the computer includes, for example, a laptop equipped with a web browser (WEB Browser), a desktop (desktop), a laptop (laptop), and the like, and the portable terminal is, for example, a wireless communication device that guarantees portability and mobility. , PCS(Personal Communication System), PDC(Personal Digital Cellular), PHS(Personal Handyphone System), PDA(Personal Digital Assistant), GSM(Global System for Mobile communications), IMT(International Mobile Telecommunication)-2000, CDMA(Code All kinds of handhelds such as Division Multiple Access (2000), W-Code Division Multiple Access (W-CDMA), Wireless Broadband Internet (Wibro), Smart Phone, Mobile Worldwide Interoperability for Microwave Access (WiMAX), etc. (Handheld)-based wireless communication device. In addition, the television may include Internet Protocol Television (IPTV), Internet Television (TV), terrestrial TV, and cable TV. Furthermore, the wearable device is a type of information processing device that can be worn directly by the human body, such as a watch, glasses, accessories, clothing, shoes, etc., to connect to a remote server via a network directly or through another information processing device. And can be connected.

Referring to FIG. 1, the communication management apparatus 10 according to an embodiment may include an input/output unit 110, a control unit 120, a communication unit 130, and a memory 140.

The input/output unit 110 may include an input unit for receiving input from a user, and an output unit for displaying information such as a result of performing a job or a state of the communication management apparatus 10. For example, the input/output unit 110 may include an operation panel for receiving user input, a display panel for displaying the screen, and the like.

Specifically, the input unit may include devices capable of receiving various types of user input, such as a keyboard, a physical button, a touch screen, a camera, or a microphone. Also, the output unit may include a display panel or a speaker. However, the present invention is not limited thereto, and the input/output unit 110 may include a configuration supporting various input/output.

The control unit 120 controls the overall operation of the communication management device 10, and may include a processor such as a CPU. The control unit 120 may control other components included in the communication management apparatus 10 to perform an operation corresponding to a user input received through the input/output unit 110.

For example, the controller 120 may execute a program stored in the memory 140, read a file stored in the memory 140, or store a new file in the memory 140.

The control unit 120 may include a mapping management unit 121, a session management unit 122, a group management unit 123, and a control message generation unit 124.

First, the mapping management unit 121 may manage a flat ID including information on a terminal ID, which is fixed identification information for identifying a communication terminal, and a locator corresponding to the location of the communication terminal on a network.

To this end, the mapping management unit 121 may register a flat ID of a communication terminal participating as an initial end node in the network.

For example, the mapping management unit 121 registers the flat ID of the communication terminal accessing the network, and the terminal ID of the communication terminal included in the plane ID and the locator and locator type of the communication terminal included in the attribute portion of the flat ID. You can register by matching information.

At this time, the mapping management unit 121 may match at least one locator to the identification information of the communication terminal in the session between the communication terminal and the device through which the communication terminal communicates.

In addition, the mapping management unit 121 may obtain a mapping change request requesting to change the locator of the communication terminal from the communication terminal, and change the locator matching the identification information of the communication terminal with the locator included in the obtained mapping change request. .

For example, when the communication terminal moves, the mapping management unit 121 may obtain a mapping change request including the updated IP address of the communication terminal from the communication terminal, and the terminal of the communication terminal based on the obtained mapping change request. You can change the locator corresponding to the ID.

In addition, the session management unit 122 may manage the session of the communication terminal.

That is, when the locator changes according to the movement of the communication terminal, the session manager 122 may manage the session of the communication terminal by requesting that the communication terminal end a session with a device communicating with and establish a session with another device. have.

For example, when the mapping management unit 121 obtains a mapping change request from the communication terminal, the session management unit 122 determines whether to stop the session with the first device that the communication terminal communicated with according to a preset condition, If it is decided to stop the session, the communication terminal may request a session connection with the second device.

At this time, according to an embodiment, the session manager 122 may relay packets transmitted and received between the communication terminal and the first device.

For example, the session manager 122 may acquire a packet (message) transmitted from the first device to the communication terminal while obtaining a mapping change request from the communication terminal and relay it to the communication terminal.

In addition, the group management unit 123 may match and manage a group ID, which is a flat ID for a group in which at least one communication terminal is grouped, and a terminal ID of each of at least one communication terminal included in the group.

For example, the group management unit 123 may group at least one communication terminal for multicasting of packets with at least one communication terminal and set a group ID, which is a flat ID expressed as one group, and belongs to the group ID. A connection relationship between terminal IDs may be formed to have a tree-type connection relationship between at least one communication terminal terminal ID.

In addition, the group management unit 123 may provide a terminal ID for a communication terminal to transmit a packet according to a connection relationship to each communication terminal included in the group.

For example, the group management unit 123 may provide a terminal ID for a second communication terminal that will transmit a packet (message) obtained by the first communication terminal to the first communication terminal, so that the communication terminal for delivering the packet is set. .

Through this, the group management unit 123 may make a packet multicast to at least one communication terminal belonging to a group using a group ID.

For example, the group management unit 123 allows the packet to be delivered to the communication terminal serving as the first parent node corresponding to the group ID, and the communication terminal receiving the packet is delivered to the communication terminal of the child node connected to it. By doing so, multicasting to a communication terminal in a group using a group ID can be achieved.

In addition, the group management unit 123 may manage group participation and group departure of the communication terminal using a control message.

For example, when the group management unit 123 obtains a group participation request message from the first communication terminal, the communication terminal may form a connection structure with the second communication terminal of the terminal node of the group in a tree structure and include it in the group. , The group participation completion message may be provided to the first communication terminal through the control message generation unit 124 to be described later.

Or, for example, when the group management unit 123 obtains a group departure request message from the first communication terminal included in the group, the second communication terminal and the third communication terminal forming a connection structure with the first communication terminal in a tree structure. By forming a connection relationship between terminals, the first communication terminal can be enhanced in a group. Thereafter, the group management unit 123 may provide a group removal completion message to the first communication terminal through the control message generation unit 124.

In addition, the control message generation unit 124 may generate a control message that controls at least one of the communication terminal and the communication management device.

According to one embodiment, the control message generation unit 124 may generate and transmit a control message according to the locator update of the communication terminal.

For example, when the mapping management unit 121 obtains a mapping change request from the communication terminal, the control message generation unit 124 may generate a mapping update confirmation message indicating that the locator has been updated to the communication terminal, and the mapping update confirmation message. Can be transmitted to the communication terminal.

According to another embodiment, the control message generation unit 124 may generate and transmit a control message according to group participation or group departure of the communication terminal.

For example, the control message generation unit 124 may generate a group participation completion message and provide it to the communication terminal when the group management is completed by the group management unit 124 obtaining a group participation request from the communication terminal.

Alternatively, for example, the control message generation unit 125 may generate a group departure completion message when the group management unit 124 obtains a group departure request from the communication terminal and completes group participation, and provides it to the communication terminal.

The communication unit 130 may perform wired/wireless communication with other devices or networks. To this end, the communication unit 130 may include a communication module supporting at least one of various wired and wireless communication methods. For example, the communication module may be implemented in the form of a chipset.

The wireless communication supported by the communication unit 130 may be, for example, Wi-Fi (Wireless Fidelity), Wi-Fi Direct, Bluetooth (Bluetooth), UWB (Ultra Wide Band), or NFC (Near Field Communication). In addition, the wired communication supported by the communication unit 130 may be, for example, USB or HDMI (High Definition Multimedia Interface).

Various types of data, such as files, applications, and programs, may be installed and stored in the memory 140. The controller 120 may access and use data stored in the memory 140, or may store new data in the memory 140. Also, the control unit 120 may execute a program installed in the memory 140.

2 is a flowchart illustrating a communication management method according to an embodiment.

The planar ID management method according to the embodiment shown in FIG. 2 includes steps that are processed in time series in the communication management apparatus 10 shown in FIG. 1. Therefore, even if omitted below, the contents described above with respect to the communication management apparatus 10 shown in FIG. 1 can be applied to the communication management method according to the embodiment shown in FIG. 2.

First, the communication management device 10 may register a flat ID including information on a terminal ID, which is a fixed identification information for identifying a communication terminal, and a locator corresponding to the location of the communication terminal on a network (S2001).

For example, the communication management apparatus 10 is a flat ID consisting of a terminal ID, which is a fixed identification information for identifying a communication terminal in the network, and a locator, which is information about the location of the communication terminal in the network, for a communication terminal requesting to participate in the network. Can be generated, and registered by matching the terminal ID and the locator.

Then, when the locator of the communication terminal is changed (S2002), the communication management device 10 may obtain a mapping change request for requesting a change of the locator of the communication terminal from the communication terminal (S2003).

For example, if the locator of the communication terminal is changed and a mapping change request is obtained from the communication terminal, the communication management apparatus 10 obtains a locator matched to the terminal ID of the communication terminal based on the locator included in the obtained mapping change request. You can change it.

At this time, the communication management apparatus 10 may determine whether or not the communication terminal needs to be reset based on the changed locator of the communication terminal.

For example, when the communication terminal acquires static content, the communication management device 10 communicates with the communication terminal when the reception speed or response delay rate of the content is increased from another device that is a preset condition due to a change in the position of the communication terminal. It may be determined that a session re-establishment is required between devices that perform.

And the communication management device 10 may request to reset the session for the communication terminal (S2004).

For example, the communication management device 10 terminates the session with the first device through which the communication terminal communicates, and creates a session between the second device and the communication terminal to communicate with the communication terminal based on the locator. can do.

At this time, the communication management device 10 may temporarily relay packets transmitted and received between the communication terminal and the first device.

Then, the communication management device 10 may provide a mapping change completion message to the communication terminal (S2005).

On the other hand, Figure 3 is a flow chart of a communication management apparatus 10 as an embodiment of a communication management method to perform multicasting using a group ID.

First, the communication management apparatus 10 may match and manage a group ID, which is a flat ID for a group in which at least one communication terminal is grouped, and a terminal ID of each of at least one communication terminal included in the group (S3001). .

According to one embodiment, the communication management apparatus 10 may obtain a group participation request from the communication terminal.

Prior to this, the communication management apparatus 10 may form the terminal ID of each of the at least one communication terminal in a tree-type connection relationship.

4 is an exemplary diagram illustrating a connection relationship between terminal IDs of communication terminals belonging to a group.

Referring to FIG. 4, the communication management apparatus 10 may be connected to the second communication terminal 402 based on the terminal ID of the first communication terminal 401, and the second communication terminal 402 may again communicate with the third communication. It is connected to the terminal 403 to form a connection structure of a tree structure between terminal IDs.

In addition, the communication management device 10 may form a connection relationship with the communication terminal corresponding to the terminal node of the group, and the communication terminal that has requested the group participation may be included in the group ID by including the terminal ID of the communication terminal in the group ID. You can participate.

Referring to FIG. 4, the communication management apparatus 10 may connect the fourth communication terminal 404 that has requested the group participation to the third communication terminal 403 of the end node, and connect the terminal ID of the fourth communication terminal. Can be included in a group ID.

In addition, the communication management device 10 may provide a group participation completion message to the communication terminal.

According to another embodiment, the communication management apparatus 10 may obtain a group departure request from the communication terminal.

For example, the communication management apparatus 10 removes the terminal ID of the first communication terminal requesting to leave the group from the group ID, and forms a connection relationship between other communication terminals forming a connection relationship with the first communication terminal. The first communication terminal can be deleted from the connection relationship of the communication terminals belonging to the group.

In addition, the communication management device 10 may provide a group departure completion message to the communication terminal.

Thereafter, the communication management apparatus 10 may multicast a packet (message) to at least one communication terminal belonging to the group based on the group ID (S3002).

For example, the communication management device 10 transmits and receives a packet to the group ID, and when the packet is transmitted to the first communication terminal, the packet is transmitted to the second communication terminal having a connection relationship with the first communication terminal. It can be multicast to at least one communication terminal included in this group.

The term'~unit' used in the above embodiments means software or hardware components such as a field programmable gate array (FPGA) or an ASIC, and'~unit' performs certain roles. However,'~ wealth' is not limited to software or hardware. The'~ unit' may be configured to be in an addressable storage medium or may be configured to reproduce one or more processors. Thus, as an example,'~ unit' refers to components such as software components, object-oriented software components, class components and task components, processes, functions, attributes, and procedures. , Subroutines, segments of program patent code, drivers, firmware, microcode, circuitry, data, database, data structures, tables, arrays, and variables.

The functions provided within the components and'~units' may be combined into a smaller number of components and'~units', or separated from additional components and'~units'.

In addition, the components and'~ unit' may be implemented to play one or more CPUs in the device or secure multimedia card.

The communication management method according to the embodiment described with reference to FIGS. 2 and 3 may also be implemented in the form of a computer-readable medium that stores instructions and data executable by a computer. At this time, instructions and data may be stored in the form of program code, and when executed by a processor, a predetermined program module may be generated to perform a predetermined operation. Also, the computer-readable medium can be any available medium that can be accessed by a computer, and includes both volatile and nonvolatile media, removable and non-removable media. In addition, the computer-readable medium may be a computer recording medium, which is implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules, or other data. It may include both volatile, removable and non-removable media. For example, computer recording media may be magnetic storage media such as HDDs and SSDs, optical recording media such as CDs, DVDs and Blu-ray Discs, or accessible via a network. It may be a memory included in the server.

In addition, the communication management method according to the embodiment described with reference to FIGS. 2 and 3 may be implemented as a computer program (or computer program product) including instructions executable by a computer. The computer program includes programmable machine instructions processed by a processor and may be implemented in a high-level programming language, object-oriented programming language, assembly language, or machine language. . In addition, the computer program may be recorded on a tangible computer-readable recording medium (eg, memory, hard disk, magnetic/optical medium, or solid-state drive (SSD)).

Accordingly, the communication management method according to the embodiment described with reference to FIGS. 2 and 3 may be implemented by executing the computer program as described above by the computing device. The computing device may include at least some of a processor, a memory, a storage device, a high-speed interface connected to the memory and a high-speed expansion port, and a low-speed interface connected to the low-speed bus and the storage device. Each of these components is connected to each other using various buses, and can be mounted on a common motherboard or mounted in other suitable ways.

Here, the processor is capable of processing instructions within the computing device, such as to display graphical information for providing a graphical user interface (GUI) on an external input or output device, such as a display connected to a high-speed interface. Examples are commands stored in memory or storage devices. In other embodiments, multiple processors and/or multiple buses may be used in conjunction with multiple memories and memory types as appropriate. Also, the processor may be implemented as a chipset formed by chips including a plurality of independent analog and/or digital processors.

Memory also stores information within computing devices. In one example, the memory may consist of volatile memory units or a collection thereof. As another example, the memory may consist of non-volatile memory units or a collection thereof. The memory may also be other forms of computer-readable media, such as magnetic or optical disks.

And the storage device can provide a large storage space for the computing device. The storage device may be a computer-readable medium or a configuration including such a medium, and may include, for example, devices within a storage area network (SAN) or other configurations, and may include floppy disk devices, hard disk devices, optical disk devices, Or a tape device, flash memory, or other similar semiconductor memory device or device array.

The above-described embodiments are for illustration only, and those having ordinary knowledge in the technical field to which the above-described embodiments belong can easily be modified into other specific forms without changing the technical idea or essential features of the above-described embodiments. You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope to be protected through the present specification is indicated by the claims, which will be described later, rather than the detailed description, and should be interpreted to include all modified or modified forms derived from the meaning and scope of the claims and equivalent concepts thereof. .

Claims

In the device for managing communication using a flat ID,

A mapping management unit that manages a flat ID including information on a terminal ID, which is fixed identification information for identifying a communication terminal, and a locator corresponding to the location of the communication terminal on a network; And

And a session manager for managing a session of the communication terminal based on the flat ID.
According to claim 1,

The communication management device,

And a group management unit matching and managing a group ID, which is a flat ID for a group in which at least one communication terminal is grouped, and a terminal ID of each of at least one communication terminal included in the group.
According to claim 2,

The group management unit,

A communication management apparatus for forming a connection relationship of each terminal ID of each of the at least one communication terminal in a tree form, and allowing packets to be delivered to the at least one communication terminal according to the formed connection relationship.
According to claim 1,

The mapping management unit,

A communication management device for registering and matching a terminal ID and a locator included in the flat ID.
According to claim 1,

The mapping management unit,

A communication management apparatus for obtaining a mapping change request for requesting a change of a locator of the communication terminal from the communication terminal, and updating the locator matched to the terminal ID of the communication terminal with a locator included in the obtained mapping change request.
The method of claim 5,

The session management unit,

A communication management device that relays a packet between the communication terminal corresponding to the terminal ID and a device through which the communication terminal communicates.
According to claim 1,

The communication management device,

And a control message generating unit generating a control message for controlling the communication terminal.
In the communication management device to manage the communication using the flat ID,

Registering a flat ID including information on a terminal ID, which is fixed identification information for identifying a communication terminal, and a locator corresponding to the location of the communication terminal on a network; And

And managing a session of the communication terminal based on the flat ID.
The method of claim 8,

The communication management method,

And matching and managing a group ID, which is a flat ID for a group in which at least one communication terminal is grouped, and a terminal ID of each of at least one communication terminal included in the group.
The method of claim 9,

The step of matching and managing the flat ID is:

And forming a connection relationship of each terminal ID of each of the at least one communication terminal in a tree form,

The step of managing the session of the communication terminal,

And transmitting a packet to the at least one communication terminal according to the formed connection relationship.
The method of claim 8,

The communication management method,

Obtaining a mapping change request for requesting a change of the locator of the communication terminal from the communication terminal; And

And updating the locator matched to the terminal ID of the communication terminal with the locator included in the obtained mapping change request.
The method of claim 11,

The step of managing the session of the communication terminal,

And relaying a packet between the communication terminal corresponding to the terminal ID and a device through which the communication terminal communicates.
A computer-readable recording medium on which a program for performing the method according to claim 8 is recorded.
A computer program executed by a communication management apparatus and stored in a medium to perform the method according to claim 8.