KR20130067735A - Mobile network system and mobile networking method thereof - Google Patents

Mobile network system and mobile networking method thereof Download PDF

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Publication number
KR20130067735A
KR20130067735A KR1020110134596A KR20110134596A KR20130067735A KR 20130067735 A KR20130067735 A KR 20130067735A KR 1020110134596 A KR1020110134596 A KR 1020110134596A KR 20110134596 A KR20110134596 A KR 20110134596A KR 20130067735 A KR20130067735 A KR 20130067735A
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South Korea
Prior art keywords
terminal
mobile
network
management table
terminals
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KR1020110134596A
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Korean (ko)
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윤성임
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한국전자통신연구원
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Priority to KR1020110134596A priority Critical patent/KR20130067735A/en
Publication of KR20130067735A publication Critical patent/KR20130067735A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/248—Connectivity information update
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE: A mobile network system and a mobile networking method thereof are provided to construct a mobile network environment by executing group communication between the mobile terminals without a center control device. CONSTITUTION: A first terminal generates an initial group list for constructing a mobile network(S110). The first terminal transmits a network generation request(S120). A second terminal modifies a network management table of a second terminal by referring to the network generation request(S130). The second terminal transmits an approval signal to the first terminal(S140). The first terminal modifies a first network management table by referring to an approval request(S150). The first terminal transmits a termination signal including the generated mobile network information to other terminals constructing a mobile network(S170). [Reference numerals] (AA) Start; (BB) End; (S110) Generate an initial group list; (S120) First terminal transmits a network generation request; (S130) Second terminal modifies a network management table by referring to the network generation request; (S140) Second terminal transmits an approval signal; (S150) First terminal modifies the network management table by referring to the approval signal; (S160) Generate a mobile network; (S170) First terminal transmits a termination signal

Description

MOBILE NETWORK SYSTEM AND MOBILE NETWORKING METHOD THEREOF

The present invention relates to a mobile network system and a mobile networking method thereof, and more particularly, to a mobile network system and a mobile networking method for performing group communication between a plurality of mobile terminals.

Machine to Machine (M2M) is a technology that performs data transmission between electronic terminals through a wired or wireless communication network. Device-to-device communications can be used in a variety of fields, including security, asset management, and corporate marketing. Examples of device-to-device communications are remote meter reading or video ads on a bus or subway.

In addition, inter-device communication may provide a means for controlling a remote device. For example, it is possible to view and control the temperature and humidity of a livestock facility without directly visiting the livestock facility, such as a vinyl house or a poultry farm, far from the current location.

More specific information about the communication between devices is disclosed in detail in Korean Patent Application No. 10-2009-0007874 and Korean Patent Application No. 10-2009-0094227.

However, the prior art for the device-to-device communication requires a separate central control device for configuring the device-to-device network, there is a limit to the flexible mobile network network configuration.

It is an object of the present invention to provide a mobile network system and a mobile networking method thereof for efficiently performing group communication between a plurality of mobile terminals.

Another object of the present invention is to provide a mobile network system and a mobile networking method thereof that do not require a separate central control device.

Another object of the present invention is to provide a mobile network system and a mobile networking method with improved security.

The mobile network configuration method according to the present invention comprises the steps of: transmitting a first signal by a first mobile terminal; Modifying, by a second mobile terminal, a network management table of the second mobile terminal in response to the first signal; Transmitting, by the second mobile terminal, a second signal according to the modified result; And modifying, by the first mobile terminal, a network management table of the first mobile terminal with reference to the second signal.

According to the present invention, a mobile network system for efficiently performing group communication between a plurality of mobile terminals is provided.

There is also provided a mobile network system that does not require a separate central control unit.

In addition, the security performance of the mobile network system is improved.

1 exemplarily illustrates a mobile network according to the present invention.
FIG. 2 is a block diagram illustrating a mobile terminal shown in FIG. 1.
3 is a diagram illustrating an operation of configuring a mobile network of a mobile network system.
4 is a diagram illustrating a mobile network release operation of a mobile network system.
5 is a flowchart illustrating an exemplary mobile networking method according to the present invention.

The foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed invention. Therefore, the present invention is not limited to the embodiments described herein and may be embodied in other forms. The embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when it is mentioned that a certain element includes an element, it means that it may further include other elements. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 exemplarily illustrates a mobile network according to the present invention. Referring to FIG. 1, the mobile network system 100 includes a plurality of mobile terminals M1, M2, M3, M4, M5, M6, M7, and M8.

The mobile network system 100 may include a mobile network connecting mobile terminals. For example, the first mobile network 110 includes mobile terminals M1, M2, M3. The second mobile network 120 includes mobile terminals M2, M4, M5. Mobile terminals belonging to each of the mobile networks 110 and 120 perform group communication with each other. Meanwhile, in the mobile network system 100 according to the present invention, each of the mobile networks 110 and 120 does not need a separate relay device or a separate network control device. For example, the first mobile network 110 configures the network only with the mobile terminals M1, M2, and M3 included in the mobile network 110, and does not require a separate relay device.

According to the above configuration, the mobile network system 100 may form a mobile network composed of only mobile terminals. Thus, the mobile network system 100 can form a mobile network more fluidly and simply.

FIG. 2 is a block diagram illustrating a mobile terminal shown in FIG. 1. Referring to FIG. 2, the mobile terminal 200 includes an interface unit 210, a group list processing unit 220, a history managing unit 230, and a network managing unit 240.

The configuration and operation of the mobile terminal 200 shown in FIG. 2 are substantially the same as those of the mobile terminals M1, M2, M3, M4, M5, M6, M7, and M8 shown in FIG. 1.

The mobile terminal 200 interfaces with the peripheral terminal 300. In addition, the mobile terminal 200 configures a mobile network with the peripheral terminal 300. Herein, the mobile network is substantially the same in configuration and operation as the mobile networks 110 and 120 illustrated in FIG. 1.

The interface unit 210 interfaces with the peripheral terminal 300 to transmit and receive a communication signal. In an embodiment, the communication signal may be a wireless signal. The interface unit 210 may generate a unique protocol for communicating with the peripheral terminal 300. The signal received by the mobile terminal 200 from the peripheral terminal 300 may be transmitted to each unit 220, 230, 240 of the mobile terminal 200 through the interface unit 210.

The group list processor 220 collects and manages terminal information of the peripheral terminal 300. The group list processor 220 generates a terminal list that can interface with the mobile terminal 200 with reference to the collected terminal information. The group list processing unit 220 generates a group communication list for performing group communication with reference to the generated terminal list.

Meanwhile, although only one peripheral terminal 300 is illustrated in FIG. 2, the number of peripheral terminals for which the group list processing unit 220 collects terminal information may be two or more.

The history manager 230 manages group communication history of the mobile terminal 200. In addition, the history manager 230 stores the group communication history of the mobile terminal 200. The history may indicate the content of group communication performed by the mobile terminal or the mobile network formed by the mobile terminal 200.

The network manager 240 manages the networking of the mobile terminal 200. The network manager 240 controls networking or group communication of the mobile terminal 200 with reference to the network management table. That is, the network manager 240 determines peripheral terminals to interface with the mobile terminal 200 according to the network management table. In addition, the network manager 240 generates or changes a network management table.

In an embodiment, the network manager 240 may change the network management table by referring to a communication signal provided from the peripheral terminal 300. In an embodiment, the network manager 240 may provide a result of changing the network management table to the peripheral terminal 300 as a communication signal. The communication signal transmission between the network manager 240 and the peripheral terminal 300 is performed through the interface unit 210.

Details of the mobile network configuration method of the mobile terminal 200 will be described later.

The mobile terminal 200 may include a controller (not shown) or a central processing unit (not shown) for controlling the general operation of the mobile terminal and the operations of the units 201, 220, 230, and 240. The control unit (not shown) or the central processing unit (not shown) is a configuration generally included in the mobile terminal device, and details thereof are well known in the art, and thus description thereof will be omitted.

According to the above configuration, the mobile terminal 200 interfaces with the peripheral terminal 300 to generate a network management table. In addition, the mobile terminal 200 configures a mobile network to perform group communication with reference to the network management table.

Therefore, the mobile network can be configured only by the interface between the mobile terminals. As a result, there is no need for a separate relay device for mobile network configuration. In addition, the mobile network may be flexibly configured. Meanwhile, since group communication is performed between mobile terminals, access from a terminal not included in the group communication may be blocked. As a result, the security performance of the mobile terminal can be improved.

3 is a diagram illustrating a mobile network configuration operation of the mobile network system. Referring to FIG. 3, the mobile network system 400 includes a master terminal 410, a first slave terminal 420, and a second slave terminal 430.

Here, the master terminal 410 refers to a terminal for requesting mobile network configuration from the first and second terminals 420 and 430 among the terminals constituting the mobile network. The first and second slave terminals 420 and 430 refer to terminals that receive a mobile network configuration request and accept the mobile network configuration.

Here, the master terminal 410 and the first and second slave terminals 420 and 430 have been described separately. However, this is to help the understanding of the present invention, any terminal constituting the mobile network may be a master terminal or a slave terminal.

 In FIG. 3, a method for configuring a mobile network between a plurality of terminals 410, 420, and 430 is provided by the mobile network system 400. Here, a method of configuring a mobile network between three terminals is described. However, as an example, the mobile network system 400 according to the present invention may configure a mobile network between four or more terminals.

Meanwhile, the master terminal 410, the first slave terminal 420, and the second slave terminal 430 of FIG. 3 form one mobile network and perform group communication with each other.

Also, the master terminal 410, the first slave terminal 420, and the second slave terminal 430 of FIG. 3 may correspond to the mobile terminals M1, M2, and M3 of FIG. 1, respectively.

In the network configuration method according to the present invention, the master terminal 410 transmits a network generation request to the first slave terminal 420 and the second slave terminal 430. At this time, the master terminal 410 may simultaneously or sequentially provide network generation requests to the first and second slave terminals 420 and 430.

Here, a case where the master terminal 410 sequentially transmits a network generation request to the first and second slave terminals 420 and 430 will be described.

First, the master terminal 410 generates a management table to form a mobile network. The master terminal 410 includes itself 410 in a network management table (hereinafter, referred to as a first network management table). The master terminal 410 transmits a network generation request (first generation request) to the first slave terminal 420. The first generation request that is sent includes the first network management table.

The first slave terminal 420 modifies the network management table (hereinafter referred to as a second network management table) of the first slave terminal 420 with reference to the first generation request. Here, the first slave terminal 420 may include the first network management table and itself 420 in the second network management table.

The first slave terminal 420 transmits a first acknowledgment signal to the master terminal 410 as a reply signal. Meanwhile, the first grant signal includes a second network management table.

The master terminal 410 modifies the first network management table with reference to the first grant signal. Here, the master terminal 410 may include a second network management table in the first network management table.

The master terminal 410 transmits a network generation request (second generation request) to the second slave terminal 430. The second generation request that is sent includes the first network management table modified with reference to the first grant signal.

The second slave terminal 430 modifies the network management table (hereinafter referred to as a third network management table) of the second slave terminal 430 with reference to the second generation request. Here, the second slave terminal 430 may include the first network management table and the self 430 included in the second generation request in the third network management table.

The second slave terminal 430 transmits a second acknowledgment signal to the master terminal 410 as a reply signal. On the other hand, the second grant signal includes a third network management table.

The master terminal 410 modifies the first network management table with reference to the second grant signal. Here, the master terminal 410 may include a third network management table in the first network management table.

When the master terminal 410 receives an acknowledgment signal (e.g., a first or second acknowledgment signal) from all the terminals (e.g., the first and second slave terminals) that will constitute the mobile network, the master terminal 410 ) Creates a group communication list. The group communication list may include a network table of the master terminal 410.

The master terminal 410 transmits first and second termination signals to the first and second slave terminals 420 and 430, respectively. The first and second end signals may include a group communication list. In an embodiment, the first and second end signals may be signals including the same data.

The first slave terminal 420 compares the group communication list and the second network table with reference to the first end signal. As a result of the comparison, if the terminals included in the group communication list do not match the terminals included in the second network table, the first slave terminal 420 modifies the second network table. Here, the first slave terminal 420 may include a group communication list in the second network table.

The second slave terminal 430 compares the group communication list with the third network table with reference to the second end signal. As a result of the comparison, if the terminals included in the group communication list do not match the terminals included in the third network table, the second slave terminal 430 modifies the third network table. Here, the second slave terminal 430 may include a group communication list in the third network table.

Meanwhile, the master terminal 410 and the slave terminals 420 and 430 have been described separately. However, this is exemplary and any terminal of the mobile network system 400 can function as a master terminal or a slave terminal.

According to the above configuration, a mobile network is formed between the master terminal 410, the first slave terminal 420, and the third slave terminal 430. In addition, the mobile network system 400 does not require a separate relay device. In addition, the master terminal 410, the first slave terminal 420, and the third slave terminal 430 may block access of a terminal not included in the mobile network by performing group communication. Therefore, the security performance of the mobile terminal can be improved.

4 is a diagram illustrating a mobile network release operation of a mobile network system. Referring to FIG. 4, the mobile network system 500 includes a master terminal 510, a first slave terminal 520, and a second slave terminal 530.

Here, the master terminal 510 means a terminal for requesting release of the mobile network from the first and second terminals 520 and 530 among the terminals constituting the mobile network. The first and second slave terminals 520 and 530 mean terminals that receive a mobile network release request and accept the mobile network.

Here, the master terminal 510 and the first and second slave terminals 520 and 530 are divided and described. However, this is to help the understanding of the present invention, any terminal constituting the mobile network may be a master terminal or a slave terminal.

 In FIG. 4, a method for releasing a mobile network formed between a plurality of terminals 510, 520, and 530 is provided by the mobile network system 500. Here, a method of releasing a mobile network between three terminals is described. However, as an example, the mobile network system 500 according to the present invention may release a mobile network between four or more terminals.

Meanwhile, the master terminal 510, the first slave terminal 520, and the second slave terminal 530 of FIG. 4 form one mobile network and perform group communication with each other.

In addition, the master terminal 510, the first slave terminal 520, and the second slave terminal 530 of FIG. 4 may correspond to the mobile terminals M1, M2, and M3 of FIG. 1, respectively.

In the network configuration method according to the present invention, the master terminal 510 transmits a network release request to the first slave terminal 520 and the second slave terminal 530. In this case, the master terminal 510 may simultaneously or sequentially provide a network release request to the first and second slave terminals 520 and 530.

Here, a case where the master terminal 510 sequentially transmits a network release request to the first and second slave terminals 520 and 530 will be described.

Here, it is assumed that the master terminal 510 and the first and second slave terminals 520 and 530 form a mobile network. The network management table of the master terminal 510 (hereinafter referred to as a first network management table), the network management table of the first slave terminal 520 (hereinafter referred to as a second network management table) and the second slave terminal 530 The network management table includes a list of terminals identical to each other.

First, the master terminal 510 transmits a network release request (first release request) to the first slave terminal 520. The first release request sent includes a release table. The release table includes a terminal (here, a master terminal) that sends a first release request.

The first slave terminal 520 modifies the second network management table with reference to the first release request. Here, the first slave terminal 520 initializes the second network management table. Alternatively, the first slave terminal 520 deletes all terminals from the second network management table.

The first slave terminal 520 transmits a first acknowledgment signal to the master terminal 510 as a reply signal. The first grant signal sent comprises a first grant table. The first grant table includes a terminal included in the release table and a terminal for transmitting the first grant signal (here, the first slave terminal).

 The master terminal 510 modifies the first network management table with reference to the first grant signal. Here, the master terminal 510 deletes terminals (except the master terminal) included in the first grant table from the first network management table.

The master terminal 510 transmits a network release request (second release request) to a terminal (second slave terminal) remaining in the first network management table with reference to the first network management table. The second release request sent includes a first grant table.

The second slave terminal 530 modifies the third network management table with reference to the second release request. Here, the second slave terminal 530 initializes the third network management table. Alternatively, the second slave terminal 530 deletes all terminals from the third network management table.

The second slave terminal 530 transmits a second acknowledgment signal to the master terminal 510 as a reply signal. The second grant signal sent includes a second grant table. The second grant table includes a terminal included in the first grant table and a terminal for transmitting the second grant signal (here, the second slave terminal).

Finally, the master terminal 510 modifies the first network management table with reference to the second grant signal. Here, the master terminal 510 deletes terminals (except the master terminal) included in the second grant table from the first network management table.

When only the master terminal remains in the first network management table, the master terminal 510 initializes the first network management table or deletes itself (master terminal) from the first network management table.

According to the above configuration, a method for releasing a mobile network by a plurality of mobile terminals is provided. And, the mobile terminals can prepare to form a new mobile network with other mobile terminals.

As a result, the mobile network system 500 according to the present invention can configure a mobile network flexibly among a plurality of terminals.

5 is a flow chart illustrating an exemplary mobile networking method in accordance with the present invention. Referring to FIG. 5, the mobile networking method includes steps S110 to S170.

In particular, FIG. 5 illustrates a method of configuring a mobile network among a plurality of terminals among the methods of configuring mobile networking. The mobile network system to which the present mobile network configuration method is applied includes first and second terminals.

In step S110, the first terminal generates an initial group list for the mobile network configuration. The initial group list may include the first terminal. In an embodiment, the initial group list may be generated with reference to a network management table (hereinafter, referred to as a first network management table) of the first terminal. The network management table is used as reference data for configuring a mobile network. That is, according to the present embodiment, the mobile network is configured between the terminals registered in the network management table with reference to the terminals registered in the network management table.

 Meanwhile, the generation of the initial group list may be performed by the group list processor 220 (refer to FIG. 2) or the network manager 240 (refer to FIG. 2) included in the first terminal. The configuration and operation of the first terminal may be substantially the same as the master terminal 410 (refer to FIG. 3) described above.

In step S120, the first terminal transmits a network creation request. The network creation request may include an initial group list. The network creation request is sent to another mobile terminal of the mobile network system to which the first terminal belongs. In an embodiment, the first terminal may have a list of mobile terminals (hereinafter, referred to as mobile terminal information) included in the mobile network system. In this case, the first terminal may transmit a network generation request with reference to the mobile terminal information.

In operation S130, the second terminal modifies a network management table (hereinafter, referred to as a second network management table) of the second terminal with reference to the network creation request. The configuration and operation of the second terminal may be substantially the same as the first slave terminal 420 (see FIG. 3) described above. In order to modify the second network management table, the second terminal includes the first and second terminals in the second network management table with reference to the network creation request. The specific modification method of the second network management table is substantially the same as described above.

In operation S140, the second terminal transmits an acknowledgment signal to the first terminal. The grant signal may include a second network management table modified with reference to the network creation request.

In step S150, the first terminal modifies the first network management table with reference to the authorization request. In order to modify the first network management table, the first terminal includes the first and second terminals in the first network management table with reference to the authorization request. On the other hand, when the first terminal is included in the conventional first network management table, the first terminal includes only the second terminal in the first network management table. Specific modification methods of the first network management table are described above. Substantially the same.

In operation S160, when an approval request is received from all terminals and modification of the first network management table reflecting each approval request is completed, the first terminal generates a mobile network.

In the present embodiment, when an approval request is received from the second terminal and the received approval request is reflected in the first network management table, the first terminal generates a mobile network.

In operation S170, the first terminal transmits an end signal including the generated mobile network information to other terminals configuring the mobile network. In the present embodiment, the first terminal transmits an end signal to the second terminal.

The mobile network configuration method described above represents a network configuration method between two mobile terminals. However, as an example, the mobile network configuration method according to the present invention may be applied between two or more mobile terminals. If another mobile terminal (hereinafter referred to as a third terminal) is further included, the mobile network is configured by performing operations S120 to S150 between the first terminal and the third terminal (in this case, The third terminal replaces the second terminal). And, the mobile network can be configured for more than four terminals in the same manner.

According to the mobile network configuration method as described above, the mobile network can be configured only by the interface between the mobile terminal. As a result, there is no need for a separate relay device for mobile network configuration.

Meanwhile, since group communication is performed between mobile terminals, access from a terminal not included in the group communication may be blocked. As a result, the security performance of the mobile terminal can be improved.

On the other hand, the mobile network configured as described above may be released by the interface of the first mobile terminal and the second mobile terminal.

The mobile network release method includes the steps of: transmitting, by the first mobile terminal, a release request; modifying, by the second mobile terminal, the second network management table in response to the release request; transmitting, by the second mobile terminal, an acknowledgment signal; 1 The mobile terminal modifies the first network management table with reference to the grant signal. Details of the method for releasing the mobile network are substantially the same as those described with reference to FIG. 4.

According to the mobile networking method (mobile network configuration or release method) as described above, a mobile network is freely configured or released between a plurality of mobile terminals. Thus, mobile network configuration can be performed flexibly.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. In addition, although specific terms are used herein, they are used for the purpose of describing the present invention only and are not used to limit the scope of the present invention described in the claims or the claims. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the equivalents of the claims of the present invention as well as the claims of the following.

Claims (1)

Transmitting, by the first mobile terminal, the first signal;
Modifying, by a second mobile terminal, a network management table of the second mobile terminal in response to the first signal;
Transmitting, by the second mobile terminal, a second signal according to the modified result; And
Modifying, by the first mobile terminal, a network management table of the first mobile terminal with reference to the second signal.
KR1020110134596A 2011-12-14 2011-12-14 Mobile network system and mobile networking method thereof KR20130067735A (en)

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