KR20140008540A - Method, mediating apparatus, and recording medium for p2p communication between mobile terminals - Google Patents

Method, mediating apparatus, and recording medium for p2p communication between mobile terminals Download PDF

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Publication number
KR20140008540A
KR20140008540A KR1020120067526A KR20120067526A KR20140008540A KR 20140008540 A KR20140008540 A KR 20140008540A KR 1020120067526 A KR1020120067526 A KR 1020120067526A KR 20120067526 A KR20120067526 A KR 20120067526A KR 20140008540 A KR20140008540 A KR 20140008540A
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South Korea
Prior art keywords
mobile terminal
content
communication
download
private
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KR1020120067526A
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Korean (ko)
Inventor
정재윤
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주식회사 엘지유플러스
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Priority to KR1020120067526A priority Critical patent/KR20140008540A/en
Publication of KR20140008540A publication Critical patent/KR20140008540A/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
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Abstract

The present invention relates to a method, a mediating apparatus, and a recording medium for P2P communications between mobile terminals in order to allow mobile terminals which use (the same or) different mobile network providers to perform P2P communications. The method for P2P communications between mobile terminals which is performed by a mediating apparatus according to an embodiment of the present invention may comprise the following steps of: (a) establishing a database by receiving information on content (file) stored on a mobile terminal from at least one mobile terminal; (b) performing a P2P connection to a first mobile terminal over a network of a first mobile network provider based on a first private IP when a download of the content of the database is requested by the first mobile terminal having the first private IP allocated by the first mobile network provider; (c) searching for identification information (CTN) of a second mobile terminal having the content which has been requested for a download based on the database; (d) obtaining a second private IP of the second mobile terminal which is allocated by a second mobile network provider based on the searched CTN; (e) performing a P2P connection to the second mobile terminal over a network of the second network provider based on the obtained second private IP; (f) downloading the content which the first mobile terminal has requested to download from the second mobile terminal; and (g) downloading the downloaded content to the first mobile terminal. [Reference numerals] (10) Mobile terminal A; (110) Communication network A; (120) Communication network B; (20) Mobile terminal B; (200) Mediating apparatus; (AA) No; (BB) Yes; (S301,S303) Content information; (S305) DB establishment/update; (S311) Request a content search; (S313) DB search (content); (S315) Content search information; (S317) Is a download selected?; (S319) Request a P2P connection and a download; (S321) Store request related information temporally; (S323,S337) P2P connection; (S325) DB search (CTN corresponding to content); (S327) Request a CTN based IP; (S329) Provide an IP corresponding to the CTN; (S331) Request no charge; (S333) Reply to no charge; (S335) Request a P2P connection; (S339) Request a content download; (S341,S345) Content download; (S343) Content quality adjustment; (S347) Content storing; (S349) Download completion; (S351) Download related information deletion

Description

Method, mediator, and recording medium for P2P communication between mobile terminals {Method, Mediating Apparatus, and Recording Medium for P2P Communication between Mobile Terminals}

The present invention relates to a P2P communication technology between mobile terminals, and more particularly, to provide a P2P communication between mobile terminals subscribed to each other (same or different) carriers, a method for intermediary P2P communication between mobile terminals. , And a recording medium.

In general, peer-to-peer (P2P) is a method of exchanging data by directly connecting terminals to and from the concept of a server and a client or a provider and a consumer. Thus, all peers can be both a supplier and a consumer.

The connection method between the two terminals is a method of sharing personal information such as IP (Internet Protocol) between the terminals. That is, the terminal to receive the data receives location information of the terminal having the corresponding data from a server located in the authorized network, and accesses the terminal with reference thereto to receive the data quickly.

However, in this method, when a terminal requesting data uses a network address (NAT) or a router using both a terminal requesting data and a terminal providing data, data communication between the two terminals is smooth. It can't be done. Here, the router is a technology that converts the public IP into private IP in the network layer, which is three layers in the OSI (Open System Interface) model, and when a public IP cannot be secured like a company, the public IP is used through the router. By converting to a private IP, the limited certified IP can be saved. As the number of terminals using such a router increases, data transmission by P2P between terminals becomes very unstable, and thus data transmission between terminals through P2P is not performed smoothly.

On the other hand, in the LTE communication era, IP has been available as reference information of each terminal in the LTE era. However, the mobile terminal is bound to a specific carrier and uses a flexible private IP for each carrier so that P2P communication with users of other carriers can be made. Problems can arise.

For example, in order to provide a P2P connection between terminals using wireless mobile communication, the communication system processes only signaling of a P2P connection and when the terminals establish a connection to IP, P2P communication becomes possible. The following problems occur.

First, since each carrier uses its own private IP, the same IP may exist in different carriers, and thus there is a problem that P2P communication cannot be performed.

Second, there is a problem that requires physical network interworking for interworking data communication between different networks.

Third, when using P2P communication, the side receiving the data naturally takes into consideration that the data may be deducted from the usage of the data, but the side providing the data also has the problem of deducting the usage of the data.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to provide a P2P communication between mobile terminals subscribed to each other (same or different) carriers, a method, an intermediate apparatus, And a recording medium.

In order to achieve the above object, a method for P2P communication between mobile terminals according to an aspect of the present invention is a method for P2P communication between mobile terminals performed in an intermediary device, which includes: (a) a corresponding mobile terminal from one or more mobile terminals; Receiving the information on the contents (file) of the database and constructing a database; (b) upon a download request for contents of the database from a first mobile terminal having a first private IP assigned from a first communication company, the first movement through a communication network of the first communication company based on the first private IP; Performing a P2P connection with the terminal; (c) retrieving identification information (CTN) of a second mobile terminal having the download requested content based on the database; (d) obtaining a second private IP of the second mobile terminal allocated from a second communication company from the second communication company's communication network based on the retrieved CTN; (e) performing a P2P connection with the second mobile terminal through a communication network of the second telecommunication company based on the obtained second private IP; (f) downloading the corresponding content requested to be downloaded from the first mobile terminal from the second mobile terminal; And (g) downloading the downloaded corresponding content to the first mobile terminal, and (h) sending the second mobile terminal to the second communication company based on the searched CTN in step (f). The method may further include requesting an unpaid charge for the data traffic generated from the step (d), or only when receiving the unpaid charge completion response from the second communication company as a result of performing the step (h). Subsequent steps, including (e), may be performed.

After adjusting at least one or more of buffering, transmission speed, and transcoding corresponding to the first mobile terminal, the downloaded content may be downloaded in step (g).

In order to achieve the above object, an intermediary apparatus for P2P communication between mobile terminals according to another aspect of the present invention receives information on a content (file) of the mobile terminal from at least one mobile terminal belonging to at least one communication company. A database building unit for building a database; When searching for a specific content (receipt of a message) for a specific content from a first mobile terminal having a first private IP assigned by a first communication company, searching the database to move the content list corresponding to the requested content to the first movement. An information search unit provided to the terminal; A first P2P that performs a P2P connection with the first mobile terminal through a communication network of the first telecommunication company based on the first private IP when there is a request for downloading one of the contents list from the first mobile terminal; Connection; Search the identification information (CTN) of the second mobile terminal having the content requested to be downloaded based on the database, and from the communication network of the second communication terminal to which the second mobile terminal belongs based on the searched identification information. An IP information obtaining unit obtaining a second private IP; A second P2P connection unit performing P2P connection with the second mobile terminal through a communication network of the second communication company based on the second private IP; A first download unit which downloads the corresponding content requested to be downloaded from the first mobile terminal from the second mobile terminal; And a second download unit which downloads the downloaded corresponding content to the first mobile terminal, and is generated from the second mobile terminal by the first download unit to the second communication company based on the searched CTN. It may further include an unpaid request unit for requesting an unpaid account for the data traffic, wherein the unpaid request unit in response to the unpaid request in response to receiving the unpaid processing completion response from the second communication company, It may be determined whether to perform the P2P connection process with the second mobile terminal of the second P2P connection unit (or the acquisition process of the second private IP of the IP information acquisition unit).

A content quality adjusting unit for adjusting at least one or more of buffering, transmission speed, and transcoding corresponding to the first mobile terminal by downloading the content downloaded through the first download unit to download through the second download unit; It may further include.

According to another aspect of the present invention to achieve the above object, there can be provided a computer-readable recording medium in which a method for P2P communication between the mobile terminal is recorded by a program.

As described above, according to various aspects of the present invention, P2P communication is enabled between mobile terminals subscribed to different (same or different) carriers even though each carrier uses its own private IP. It provides physical network interworking for data communication interworking. Also, when using P2P communication, only those receiving data can charge within their own data usage, and those who provide data can be charged to increase the efficiency of P2P communication. There is.

1 is a configuration diagram of a system for P2P communication between mobile terminals according to an embodiment of the present invention;
2 is a configuration diagram of an intermediary device for P2P communication between mobile terminals according to an embodiment of the present invention;
3 is a flowchart of a method for P2P communication between mobile terminals according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals are used to denote like elements in the drawings, even if they are shown in different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a configuration diagram of a system for P2P communication between mobile terminals according to an embodiment of the present invention. As shown in the figure, mobile terminals A, B (10, 20), communication networks A, B (110, 120), and It may include an intermediary device 200.

The mobile terminal A, B (10, 20) according to the present embodiment is a mobile communication terminal, PDA, smart phone, or tablet PC capable of at least one or more of voice / video communication, data communication, Internet communication, SNS, etc. Can be configured.

In the present embodiment, for convenience, the mobile terminal A 10 is divided into a user terminal subscribed to the communication network A 110 and the mobile terminal B 20 represents a user terminal subscribed to the communication network B 120. Explain.

The communication network A, B (110, 120) is connected to the mobile terminal A, B (10, 20), and between the mobile terminal A (10) and the intermediary device 200 and the mobile terminal B (20) by wire, wireless, and / or the Internet. It may be any network, alone or in combination, that can be connected in a single way or in both directions. However, in the present embodiment, for convenience, communication networks A and B 110 and 120 are wireless mobile communication networks, and communication network A 110 represents a communication network system of communication company A and communication network systems of communication network B 120 and communication system B 120. However, the present invention is not limited thereto, and when the communication companies A and B are the same communication company, the communication networks A and B 110 and 120 may be the same communication network.

In this embodiment, the communication network A 110 assigns a private IP to the mobile terminal A 10 subscribed to the corresponding communication company A so as to perform data communication, and the communication network B 120 subscribes to the mobile terminal B subscribed to the communication company B ( 20) Allocate a private IP to enable data communication.

The mediation apparatus 200 according to the present embodiment may include a function of a search server for searching for information including various contents (or files) and a mediation function for mediating P2P connection between heterogeneous networks.

The search server function of the intermediate apparatus 200 performs a function similar to that of a general P2P system, and the mediation function recognizes the intermediate apparatus 200 as one terminal in the communication networks A and B 110 and 120 of each communication company. You can have a mediation function for the connection.

In order to solve the problem that the data provider such as the content also uses the data packet, the mediation apparatus 200 according to the present embodiment requests the provider of the data provider for the unpaid processing of the data traffic usage of the provider, The charges can be settled later and charged to the data receiver.

The mediation apparatus 200 according to the present embodiment may buffer and transfer data received from the data provider, that is, data to be delivered to the data receiver while temporarily storing the data, and may delete the data after the delivery is completed.

The mediation apparatus 200 according to the present embodiment controls the transmission rate for the data delivered to the receiver, transcodes the data delivered to the receiver to an appropriate level for the terminal of the receiver, and transcoding is a data transmission time. It can be performed for the purpose of shortening the function and controlling the quality of contents according to the service use level (payment or not) of the receiver.

The intermediate apparatus 200 according to the present embodiment directly uses the private IP of the receiver and the provider as information for connecting the data receiver and the provider, or considers the fluidity of the corresponding private IP, and the telephone number (CTN) of the receiver and the provider. On the basis of the terminal identification information, such as can continuously query the corresponding IP from the communication network to maintain the connection with the terminal.

The communication network A, B (100, 120) according to the present embodiment may recognize the intermediate apparatus 200 as one terminal and make a P2P connection with the other terminals 10, 20, and when a P2P connection is made. For example, the billing of data traffic usage generated by both the information provider and the receiver may be charged only to a specific target (eg, the information receiver). Basically, the information receiver can charge in the form of paying both the incoming data traffic and the outgoing data traffic, but if necessary, the outgoing data traffic can be excluded from the billing (subtracted from the amount of basic data).

2 is a configuration diagram of an intermediary device for P2P communication between mobile terminals according to an embodiment of the present invention, which is a detailed configuration diagram of the intermediary device 200 of FIG. 1. As shown in the figure, a database DB is constructed. The unit 211, the information retrieval unit 213, the first P2P connection unit 215, the IP information acquisition unit 217, the second P2P connection unit 219, the first download unit 221, and the second download unit 223 ), The billing request unit 225, and the content quality adjustment unit 227.

Database (DB) construction unit 211 builds a database or updates the built database by receiving information about the contents (or files) owned by the mobile terminal from one or more mobile terminals belonging to the same or different carriers For example, a phone number (CTN) as the identification information of the mobile terminal B 20 may be used to transfer information about various contents stored in the mobile terminal B 20 from the mobile terminal B 20 through the communication network B 120. ) And the mobile terminal B 20 together with the information of the communication network B 120 to which the mobile terminal B 20 belongs to build or update a database.

The information retrieval unit 213 searches for a database of the database construction unit 211 when requesting a search for specific content from a mobile terminal having a private IP assigned by an arbitrary communication company, and thus serves as search information corresponding to the requested content. Since the list and the like are provided to the corresponding mobile terminal, for example, if there is a search request for specific content from the mobile terminal A 10, the mobile terminal A 10 may provide the content list searched based on the database. .

The first P2P connection unit 215 is for performing a P2P connection with the mobile terminal through the communication network when there is a download request from the mobile terminal for one of the contents list provided to any mobile terminal, for example, the mobile terminal. If there is a download request for one of the contents of the content list from the A (10), based on the private IP of the mobile terminal A (10) between the mobile terminal A (10) and the intermediate apparatus 200 through the network A (110) It is for establishing P2P connection.

The IP information acquisition unit 217 is for acquiring IP information of another terminal having content requested to be downloaded from an arbitrary terminal. For example, the mobile terminal A 10 may be based on a database of the database building unit 211. Search the telephone number (CTN) as the identification information (CTN) of the mobile terminal B (20) having the content requested to download, and, based on the retrieved telephone number, the communication network B of the communication company B to which the mobile terminal B (20) belongs From 120 may obtain the current private IP assigned to the mobile terminal B (20).

The second P2P connection unit 219 relays the corresponding mobile terminal B 20 and the intermediate apparatus through the communication network B 120 of the communication company B based on the private IP of the mobile terminal B 20 obtained by the IP information acquisition unit 217. To achieve the P2P connection between the (200).

The first download unit 221 is for downloading a specific content from any terminal P2P connected, for example, to download the corresponding content requested to download from the mobile terminal A (10) from the mobile terminal B (20). .

The second download unit 223 is for downloading content downloaded from any P2P connected terminal to another P2P connected terminal. For example, the mobile terminal A 10 downloads the corresponding content downloaded from the mobile terminal B 20. Is to download.

The non-billing request unit 225 is for accessing and requesting a corresponding network to be charged for outgoing traffic generated from the information provider. For example, the mobile terminal B 20 retrieved by the IP information acquisition unit 217. The billing server of the communication network B 120 is requested by the first download unit 221 for the uncharged data traffic generated from the mobile terminal B 20 as the information provider based on the telephone number (CTN) of the network. You can make sure that your data traffic is billed.

In addition, the unpaid request unit 225 acquires or processes the private IP of the IP information acquisition unit 217 according to whether the unpaid process completion response from the communication network B 120 is received in response to the unpaid request. 2 may determine whether to perform a P2P connection process with the mobile terminal B 20 of the P2P connection unit 219. For example, when an unpaid processing completion response is received from the communication network B 120, the IP information acquisition unit 219 may be performed. The second P2P connection unit 219, the first download unit 221, the second download unit 223, the unpaid request unit 225, and the content quality adjustment unit 227 operate normally, and if the communication network B ( When the non-billable non-billable answer is received or there is no answer, the configuration 219, 221, 223, 225, 227 may be disabled.

The content quality adjusting unit 227 is for interworking with physical data communication between different communication networks. For example, the content quality adjusting unit 227 buffers the content downloaded through the first download unit 221, transmits the speed, and the mobile terminal as the information receiver. The A 10 may adjust at least one or more of transcodings corresponding to performance and environment, and download the corresponding content through the second download unit 223.

3 is a flowchart of a method for P2P communication between mobile terminals according to an embodiment of the present invention, which is applied to the system of FIG. 1 and thus will be described in parallel with the operation of the system.

First, the intermediary device 200 is for one or more contents (or files) of the mobile terminal from one or more mobile terminals A, B (10, 20) belonging to different or the same network A, B (110, 120) Receiving the information to build a database or update the built database, in this embodiment the information about the content is the content list information that the mobile terminal has, the telephone number (CTN) information as identification information of the mobile terminal, and the corresponding Information on the communication network to which the mobile terminal belongs may be included (S301, S303, S305).

In a state in which a database is built in the intermediate apparatus 200 by performing the above steps S301 to S305, the mobile terminal A 10 accesses the intermediate apparatus 200 through the communication network A 110 to perform a search for a specific content. Upon request (S311), the mediation apparatus 200 searches the database to retrieve a list of the corresponding content (S313), and based on the private IP of the mobile terminal A 10 the content search information including the searched content list. It provides to the mobile terminal A (10) via the communication network A (110) (S315).

Subsequently, the mobile terminal A 10 displays the content list of the content search information received in step S315, and if a download for one content is selected from the displayed content list by the user (S317), the intermediate apparatus 200. In step S319, a request for downloading of the corresponding content is requested while requesting a P2P connection.

Subsequently, the intermediary device 200 may download the related information (for example, private IP information for the mobile terminal A 10, CTN information, information of the communication network A 110, and download requested content name information in step S319). After the temporary storage (S321), and performs a P2P connection with the mobile terminal A (10) via the communication network A (110) (S323).

Subsequently, the intermediary device 200 retrieves CTN information as identification information of the mobile terminal B 20 having the downloaded requested content from a database (S325), and the communication network B 120 of the communication company B based on the retrieved CTN information. ) Requests the private IP assigned to the mobile terminal B 20 of the CTN (S327), and receives the private IP of the mobile terminal B 20 from the communication network B 120 (S329).

Subsequently, the mediation apparatus 200 requests the network B 120 for an unpaid charge for data traffic transmitted from the mobile terminal B 20 (S331), and then, in response to step S321 from the network B 120, the intermediate apparatus 200 does not receive an answer. Receive the charge processing completion response (S333). Meanwhile, the above-described steps S331 and S333 may be selectively performed.

Subsequently, when the intermediate apparatus 200 receives the unpaid processing completion response from the communication network B 120 in step S333, the mobile terminal B (eg, through the communication network B 120 of the communication company B based on the private IP obtained in step S329). 20 to request a P2P connection (S335), and performs a P2P connection with the mobile terminal B (20) via the communication network B (120) (S337).

Subsequently, the intermediate apparatus 200 requests the mobile terminal B 20 to download the corresponding content requested to be downloaded from the mobile terminal A 10 (S339), and transmits the corresponding content from the mobile terminal B 20 to the communication network B 120. Download through (S341).

Subsequently, the mediation apparatus 200 adjusts at least one or more of buffering, transmission speed, and transcoding corresponding to the mobile terminal A 10 for the content downloaded in step S341 (S343). In step S323 via the communication network A (110) is downloaded to the mobile terminal A (10) P2P connected (S345).

Subsequently, the mobile terminal A 10 stores the corresponding content downloaded in step S345 (S347), and transmits the download completion information of the corresponding content to the intermediate apparatus 200 (S349), and finally, the intermediate apparatus 200 In step S321, the temporarily stored download related information is deleted and all processes are terminated (S351).

As described above, the method for P2P communication between mobile terminals according to an embodiment of the present invention may be implemented as a computer-readable recording medium including program instructions for performing various computer-implemented operations. The computer-readable recording medium may include a program command, a local data file, a local data structure, or the like, alone or in combination. The recording medium may be those specially designed and constructed for the embodiments of the present invention or may be those known to those skilled in the computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical recording media such as CD ROM, DVD, magnetic optical media such as floppy disks, and ROM, RAM, and flash. Hardware devices that are specifically configured to store and execute program instructions, such as memory, are included. The recording medium may be a transmission medium such as an optical or metal line, a wave guide, or the like, including a carrier wave for transmitting a signal designating a program command, a local data structure, or the like. Examples of program instructions may include machine language code such as those generated by a compiler, as well as high-level language code that may be executed by a computer using an interpreter or the like.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

10: mobile terminal A
20: mobile terminal B
110: network A
120: network B
200: intermediary
211: Database Builder
213: information retrieval unit
215: first P2P connection
217: IP information acquisition unit
219: second P2P connection
221: first download unit
223: second download unit
225: unpaid request
227: Content Quality Control

Claims (9)

A method for P2P communication between mobile terminals performed in an intermediate apparatus,
(a) receiving information about content owned by the mobile terminal from at least one mobile terminal and constructing a database;
(b) upon a download request for contents of the database from a first mobile terminal having a first private IP assigned from a first communication company, the first movement through a communication network of the first communication company based on the first private IP; Performing a P2P connection with the terminal;
(c) retrieving identification information of a second mobile terminal having the content requested to be downloaded based on the database;
(d) obtaining a second private IP of the second mobile terminal allocated from a second communication company from the communication network of the second communication company based on the retrieved identification information;
(e) performing a P2P connection with the second mobile terminal through a communication network of the second telecommunication company based on the obtained second private IP;
(f) downloading the corresponding content requested to be downloaded from the first mobile terminal from the second mobile terminal; And
and (g) downloading the downloaded corresponding content to the first mobile terminal. The method of claim 1,
(h) requesting the second carrier to charge the data traffic generated from the second mobile terminal in step (f) based on the retrieved identification information. Method for P2P communication. 3. The method of claim 2,
P2P communication between mobile terminals, characterized in that the subsequent steps including the step (d) or (e) are performed only when an unpaid processing completion response is received from the second communication company as a result of performing the step (h). Way for you. The method of claim 1,
After adjusting at least one or more of buffering, transmission speed, and transcoding corresponding to the first mobile terminal, the downloaded content is downloaded in step (g). Method for P2P communication between mobile terminals. A database constructing unit for receiving information on content owned by the mobile terminal from at least one mobile terminal belonging to one or more communication companies to build a database;
When searching for specific content from a first mobile terminal having a first private IP assigned by a first communication company, information for searching the database and providing a content list corresponding to the requested content to the first mobile terminal; Search unit;
A first P2P that performs a P2P connection with the first mobile terminal through a communication network of the first telecommunication company based on the first private IP when there is a request for downloading one of the contents list from the first mobile terminal; Connection;
Search for identification information of the second mobile terminal having the content requested to be downloaded based on the database, and based on the retrieved identification information, a second private terminal of the second mobile terminal from a communication network of a second communication company to which the second mobile terminal belongs; An IP information obtaining unit obtaining an IP;
A second P2P connection unit performing P2P connection with the second mobile terminal through a communication network of the second communication company based on the second private IP;
A first download unit which downloads the corresponding content requested to be downloaded from the first mobile terminal from the second mobile terminal; And
An intermediary device for P2P communication between mobile terminals including a second download unit for downloading the downloaded content to the first mobile terminal. The method of claim 5,
The mobile terminal further comprises an unpaid request unit for requesting the second communication company for an unpaid account for data traffic generated from the second mobile terminal by the first download unit based on the retrieved identification information. Mediation device for P2P communication between. The method according to claim 6,
The unpaid request unit determines whether to perform a P2P connection process with a second mobile terminal of the second P2P connection unit according to whether the unpaid processing completion response from the second communication company is received in response to the unpaid request. An intermediary device for P2P communication between mobile terminals. The method of claim 5,
A content quality adjusting unit for adjusting at least one or more of buffering, transmission speed, and transcoding corresponding to the first mobile terminal by downloading the content downloaded through the first download unit to download through the second download unit; Intermediary device for P2P communication between the mobile terminal further comprises. A computer-readable recording medium in which a method for P2P communication between the mobile terminals of any one of claims 1 to 4 is recorded by a program.
KR1020120067526A 2012-06-22 2012-06-22 Method, mediating apparatus, and recording medium for p2p communication between mobile terminals KR20140008540A (en)

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KR20010079376A (en) * 2001-07-10 2001-08-22 이동걸 Method for union downloaded bell sound
JP2003087245A (en) * 2001-09-17 2003-03-20 Hitachi Ltd Accounting method and terminal equipment for information communication network system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010031466A (en) * 1998-08-27 2001-04-16 다치카와 게이지 Charging method for information communication network
KR20010079376A (en) * 2001-07-10 2001-08-22 이동걸 Method for union downloaded bell sound
JP2003087245A (en) * 2001-09-17 2003-03-20 Hitachi Ltd Accounting method and terminal equipment for information communication network system

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