KR100623194B1 - Method for providing the p2p service in wireless telecommunication network - Google Patents

Abstract

The present invention relates to a method of providing a peer-to-peer (P2P) service, and enables data sharing between mobile communication terminals by SMS to enable data sharing in a P2P manner even between mobile communication terminals not connected to the Internet. It provides a method of providing a P2P service in a mobile communication network, which processes a search request and a data search result response thereto, and transmits and receives data in a wireless data channel between mobile communication terminals, and provides a P2P service to a subscriber in a mobile communication network. In particular, data search and data search result response processing can be performed even between mobile communication terminals not connected to the wireless Internet, thereby enabling data sharing between mobile communication terminals, and limited system resources of the mobile communication network (eg; P2P service is provided only by mobile bandwidth, wireless internet service, etc.). It can be used as a service, and has no effect on the load of the mobile communication system, can reduce the burden on the wireless packet data fee to the subscriber, protects the privacy of the subscriber and prevents the leakage of subscriber's data. It is effective to make it possible.

Mobile network, P2P, SMS, Wireless Internet

Description

Method for providing P2P service in mobile communication network {Method for providing the P2P service in wireless telecommunication network}

1 is a configuration diagram of an embodiment of a mobile communication network to which the present invention is applied.

2A and 2B are flowcharts illustrating an embodiment of a method for providing P2P service in a mobile communication network according to the present invention.

* Explanation of symbols on the main parts of the drawing

10: mobile communication terminal 20: base station controller

30: mobile switching center 40: packet data serving node

50: SMS Center 60: Application Server

70a, 70b, 70c: mobile communication terminal

The present invention relates to a method of providing a peer-to-peer (P2P) service, and more specifically, to SMS, so that data can be shared in a P2P manner even between mobile communication terminals not connected to the Internet. The present invention relates to a method for providing P2P service in a mobile communication network to process a data search request between mobile communication terminals and a data search result response thereto and to perform data transmission and reception on a wireless data channel between mobile communication terminals.

Recently, due to the development of Internet related technology, people can provide various files (eg MP3, AVI, etc.) stored on their computer to others or various files stored on their computer. . Such file (data) sharing between individuals is made by a peer-to-peer (hereinafter, referred to as a "P2P") service, and representative P2P services include Napster and Sorisea.

The above P2P service is divided into two types according to how the service providing server connects the computer and the computer and does not perform the direct search. In the first method, if a specific data search is requested from one computer while each computer is connected to the server, the server searches for the corresponding data stored in all the computers connected to the server and responds to the search result with the above one computer. Through the relay of the server, one computer receives the data by connecting to the corresponding computer through the search result response. The second method is to acquire the IP addresses of all the computers connected to the server while each computer is connected to the server, and provide the IP addresses of other computers to all computers, connecting each computer with each other's IP address to retrieve the data directly. By sending and receiving.

However, in the above-described prior arts, in order to exchange data between users in a P2P manner, a computer of a user side must always be connected to the Internet, that is, a service providing server connected to the Internet. In other words, the above P2P service is implemented in the wired IP network, and the other computer must also be connected to the Internet in order to search which computer has the data the user wants from one computer regardless of whether the server performs the search. .

However, unlike a wired IP network, in a mobile communication network, all mobile communication terminals are not always connected to the wireless Internet. For example, when a specific content is downloaded, a temporary mobile IP address is allocated to the mobile IP address to obtain data from a swap server. After receiving, disconnect the wireless Internet connection.

Therefore, when the P2P service implemented in the wired IP network is applied to the mobile communication network as it is, even if one mobile communication terminal accesses the wireless Internet and searches for data, the data of the other mobile communication terminals not connected to the wireless internet is No search is made.

On the other hand, if a mobile IP address is assigned to all mobile communication terminals and each mobile communication terminal is always connected to the wireless Internet, P2P service is possible in the mobile communication network. However, in this case, due to limited system resources (for example, mobile communication bandwidth) As a result, not only data retrieval can be performed properly, but the load of the mobile communication network due to data retrieval is greatly increased.

In addition, due to the limited system resources of the mobile communication network, the packet data service of the mobile communication service charges the user for a predetermined packet fee, and the user of the mobile terminal user (information provider) who responds to the data retrieval. For the P2P service, accessing the wireless Internet for a long time is very burdensome.

The present invention has been proposed to solve the above problems and to meet the above demands, and to request data retrieval between mobile communication terminals by SMS so that data can be shared in a P2P manner even between mobile communication terminals not connected to the Internet. And a method for providing a P2P service in a mobile communication network to process a data search result response thereto and to transmit and receive data through a wireless data channel between mobile communication terminals.

In the method of the application server of the present invention for achieving the above object, in the method for providing peer-to-peer (P2P) service, the data search word from the mobile communication terminal A by the relay of the SMS center; A first step of inquiring mobile communication terminals subscribed to the service when receiving the inserted short message; A second step of designating a source of the received short message as the service telephone number and transmitting the received short message to the inquired mobile communication terminals by relay of an SMS center; When receiving the short message containing the data search result from the mobile communication terminals by the relay of the SMS center as a result of the short message transmission in the second step, the data search result list is collected and the data search result list swap (web) page is collected. A third step of constructing, and transmitting a callback message in which a data search result list URL indicating the swap (web) page is inserted to the mobile communication terminal A by relaying an SMS center; When a specific data download request signal is received from the mobile communication terminal A on the data search result list swap (web) page, the corresponding mobile communication terminal B is checked and a question of whether to allow data sharing is inserted by the relay of the SMS center. Transmitting a short message to the mobile communication terminal B; As a result of the transmission of the short message in the fourth step, if the short message containing the data sharing permission is inserted from the mobile communication terminal B by the relay of the SMS center, the data sharing permission is inserted by the relay of the SMS center. Transmitting a short message to the mobile communication terminal A and requesting the packet data serving node to allocate a mobile IP address to the mobile communication terminal B when the mobile communication terminal B allows data sharing; And a sixth step of, upon receiving the mobile IP address assigned to the mobile communication terminal B from the packet data serving node as a result of the request, transmitting a callback message including the mobile IP address to the mobile communication terminal A by a relay of an SMS center. It includes.

In the method of the present invention, a method for providing a peer-to-peer service includes inserting the data search word into a short message when a user inputs a data search word. A first step of designating a destination as the service telephone number and transmitting the short message to an SMS center; A second step of receiving a callback message in which a data search result list URL is inserted from an application server by a relay of an SMS center as a result of the short message transmission; A third step of accessing a web page corresponding to a data search result list URL when receiving a wireless Internet access request for the second callback message from a user; A fourth step of requesting a corresponding data download to the application server when a specific data download request on the data search result list swap (web) page is received from a user; As a result of the data download request, the SMS center receives a short message containing the fact that the mobile terminal B permits data sharing from the application server by the relay of the SMS center. Receiving a callback message in which a destination mobile IP address is inserted from the application server by a relay; And receiving a wireless Internet access request for the callback message of the fifth step from a user, accessing the mobile communication terminal B corresponding to the destination mobile IP address, and downloading the specific data from the mobile communication terminal B through a data channel. Steps.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to intention or custom of a user or an operator. Therefore, the definition should be based on the contents throughout the book.

1 is a configuration diagram of an embodiment of a mobile communication network to which the present invention is applied.

As shown in FIG. 1, a mobile communication network to which the present invention is applied includes a mobile communication terminal (MS) 10, 70a, 70b, 70c, a base station and a base station controller (BSC) 20, and a mobile communication switching center (MSC) ( 30), a packet data serving node (PDSN) 40, an SMS center 50, and a P2P service providing server (hereinafter referred to as an "application server") 60 of the present invention.

In the present invention, a request for data retrieval receives a search result response, selects desired data among them, and a recipient from another is called "one subscriber", and the mobile communication terminal of one subscriber is described with reference numeral "10". Those who give a search result response to the data search of the subscriber on the one side and send the selected data to others are called "other subscribers", and each mobile communication terminal of the subscribers on the other side is referred to as "70a", It describes as "70b" and "70c".

Meanwhile, in the known mobile communication system, the base station and the base station controller (hereinafter, referred to as the "base station controller" through the base station and the base station controller) 20 is a mobile communication service (eg, wireless) to a mobile communication terminal in a corresponding area (cell). Voice channel connection, message relay, etc.). The mobile switching center 30 accommodates each base station controller, and the packet data serving node 40 provides a wireless Internet service (eg, mobile IP address assignment, data channel connection, etc.) to the mobile communication terminal. In addition, the SMS center 50 is interlocked with the application server 60 of the present invention, a message to the mobile communication terminal [eg; Short Message (SMS), Long Message (LMS), Callback URL (callback URL), etc.] Provides a transmission and reception service. In particular, in the present invention, the above-described mobile communication system only performs known processes (eg, SMS relaying, mobile IP allocation / registration, etc.) in a conventional manner, and does not perform a separate process for the wireless P2P service of the present invention. Therefore, it will be readily understood by those skilled in the art that no load is generated in such a mobile communication system.

In the present invention, even if the mobile communication terminals 10, 70a, 70b, 70c are not connected to the wireless Internet, the mobile communication terminal 10 of one side is connected to the mobile communication terminals 70a, 70b, 70c of the other side by a short message. It is possible to search the stored data, and process the data search result received as a short message from the other mobile communication terminals 70a, 70b, and 70c in the application server 60 as a callback message so that the mobile communication terminal 10 of one side is processed. To the other mobile communication terminal corresponding to the connection request of the mobile communication terminal 10 of one side from the application server 60, and the mobile IP of the other side receiving the data sharing permission The address is assigned to the mobile communication terminal 10 on one side, and the destination mobile IP address is provided as a callback message. Of the connection between the mobile communication terminal receives the transmission data to the wireless data channel.

To this end, each mobile communication terminal (10, 70a, 70b, 70c) is equipped with the service program (aka wireless P2P agent). In particular, such a wireless P2P agent is mounted on a mobile communication terminal of a user who subscribes to the service, and when a data retrieval is received from a subscriber by selecting a data retrieval menu of the subscriber, the service program is input by the subscriber. The data search term as the body of the short message, and the destination telephone number is referred to as the service telephone number (hereinafter referred to as "service called number"). ") To send this short message to the SMS center 50 side. Accordingly, the SMS center 50 checks the destination telephone number of the short message including the data search word from the mobile communication terminal and forwards the short message to the application server 60 corresponding to the receiver.

In addition, the service program on the mobile communication terminal always maintains the running state and retrieves the data corresponding to the case of receiving a data search request from the application server 60 in a short message, and the data search results for this as the body of the short message. The destination telephone number that is configured and the destination telephone number is referred to as the service telephone number (hereinafter referred to as "service called number", and additionally, the destination telephone number used for this data search response is called "called party number for data search response"). The called party number and the called party number for the data retrieval response may be configured identically) to transmit the short message to the SMS center 50 side. Accordingly, the SMS center 50 checks the destination telephone number of the short message including the data search result from the mobile communication terminal and forwards the short message to the application server 60 corresponding to the receiver.

In addition, the program for the service on the mobile communication terminal after the short message containing the data search result is received from the application server 60 in the case of receiving a request for permission to share the data in the short message by informing the user of the user's decision making The short message is sent to the SMS center 50 by configuring the matter (permit data sharing or rejection of data sharing) as the body of the short message and designating the destination phone number as the service telephone number. Accordingly, the SMS center 50 checks the recipient of the short message including whether to allow data sharing from the mobile communication terminal and forwards the short message to the application server 60 corresponding to the receiver.

In addition, the service program on the mobile terminal receives the destination mobile IP address as a callback message from the application server 60 after the user selects a specific mobile communication terminal (specific data download request) from the data search result list. In this case, the user's operation or automatically accesses the other mobile communication terminal corresponding to the corresponding destination mobile IP address through the wireless Internet and receives the specific data from the other mobile communication terminal through the data channel.

Hereinafter, a detailed process of P2P service, that is, data search, response to data search, data search result list provision, data sharing permission, and data transmission and reception in the mobile communication network of the present invention will be described with reference to FIGS. 2A and 2B. do.

2A and 2B are flowcharts illustrating an embodiment of a method for providing P2P service in a mobile communication network according to the present invention.

First, in order for a subscriber to download a ringtone with the file name "Dokdo is our land" from another mobile communication terminal, select the data search menu of this service program (aka wireless P2P agent) and select "Dokdo is our land, ringtone". [Another example is a file extension (attribute) corresponding to a ring tone <Yes; After inputting a data search term such as "Dokdo is our land. MP3">] and selecting a search start menu, the mobile terminal 10 of one side transmits the data search term entered by the subscriber in the short message. This short message is transmitted according to the known SMS method by configuring the body and designating the destination telephone number as the service destination number (200).

Accordingly, the short message transmitted from the mobile communication terminal 10 of one side is routed to the SMS center 50 through the base station controller 20 and the mobile communication switching center 30, and the above data search word is transmitted from the SMS center 50. It checks the destination phone number of the included short message and forwards the short message to the application server 60 corresponding to the destination (201).

Accordingly, the application server 60 receives the short message, and the application server 60 thus grasps the service destination number of the short message (where the service destination number is preferably a phone number for data retrieval). Recognize that the message corresponds to the data retrieval request message, or identify the body content of the short message ("Dokdo is our land, ringtone") to recognize that the short message corresponds to the data retrieval request message, or the header information of the short message. Identify the (Data Retrieval Indicator) to recognize that this short message corresponds to a data retrieval request message. Then, the application server 60 checks the service profile of the subscriber DB (not shown in the drawing) and the like and checks the telephone numbers of the other mobile communication terminals 70a, 70b, and 70c subscribed to the present service ( 202). In addition, the application server 60 may verify the source telephone number of the short message to authenticate whether the user of the mobile communication terminal 10 of one side is subscribed to the service.

Thereafter, the application server 60 copies several short messages received from the mobile communication terminal 10 on the one side, and checks the destination telephone number of each copied short message in the process of " 202 " This short message is redirected to each telephone number of the terminals 70a, 70b, 70c and transmitted in a known SMS manner (203). In particular, the source telephone number of the short message transmitted to the mobile terminals 70a, 70b and 70c of the other side is reassigned to the service telephone number, preferably the called number for the data retrieval response, and the other mobile communication terminals ( In 70a, 70b, and 70c, the result of the response to the above short message (short message) is routed to the application server 60. Here, the result (short message) in response to the short message from the other mobile communication terminals (70a, 70b, 70c) may be directly transmitted to the mobile communication terminal 10 of one side, but the low specification characteristics of the mobile communication terminal Due to this, it is difficult to process a number of short messages, and since data communication cannot be performed between the two mobile communication terminals in the absence of destination mobile IP address information, the application server 60 performs the processing.

Accordingly, each short message transmitted from the application server 60 is forwarded to the SMS center 50, and the SMS center 50 checks the destination phone number of each short message, respectively, and the mobile communication of the other side corresponding to the receiver. The short messages are transmitted to the terminals 70a, 70b, and 70c, respectively (204).

Accordingly, each of the mobile communication terminals 70a, 70b, and 70c of the other side receives the same short message including the data search word ("Dokdo is our land, ringtone"), and thus the other mobile communication terminals ( 70a, 70b, and 70c) each identify the source telephone number (a destination number for a data retrieval response) of the short message to recognize that the short message corresponds to a data retrieval request message or to grasp the content of the short message. Recognizes that the message corresponds to the data retrieval request message or recognizes the short message header information (data retrieval execution indicator) to recognize that the short message corresponds to the data retrieval request message. Then, each of the other mobile communication terminal (70a, 70b, 70c) is stored in the storage medium (memory, etc.) of the mobile communication terminal of the data search word "Dokdo is our land, ringtone" inserted in the short message Searched data, files, and the like are retrieved (205).

Then, in each of the other mobile communication terminals 70a, 70b, and 70c, the data search result, that is, the data does not exist corresponding to "Dokdo is our land, ringtone" or "Dokdo is our land, ringtone" After generating the current terminal communication status together with this data attribute information (file name, file format, file size, etc.) in the presence of data, the generated data search result is composed of a short message body and the destination telephone number is recalled. The short message is transmitted in accordance with a known SMS method by designating as a called number for the data search response identified in step 205 (step 206). In particular, each of the other mobile communication terminals (70a, 70b, 70c) to determine the current communication status of the mobile terminal (mobile communication terminal) and includes the terminal communication status in the data search results to perform a data search response, which is the existing wired Like the P2P service in the IP network, to provide the information of the mobile communication terminal with a high data download speed to the mobile communication terminal 10 of the one side. Here, the known mobile communication terminal checks the wireless communication state with the base station and controls the signal output. If the output signal is large, the communication state is stable (good), and if the output signal is small, the communication state is unstable. In the present invention, the magnitude of the output signal is used as the terminal communication status information.

Accordingly, the short messages transmitted from each of the other mobile communication terminals 70a, 70b, and 70c are routed to the SMS center 50, and the SMS center 50 checks the destination telephone number of each short message. In step 207, each short message is forwarded to the application server 60 corresponding to the receiver.

Accordingly, each short message is received by the application server 60, so that the application server 60 grasps the service destination number of the short message (where the service destination number is preferably a telephone number for a data search response). Recognize that this short message corresponds to the data retrieval response message, or grasp the body content (data attribute information and terminal communication status corresponding to the data retrieval result) of the short message to confirm that the short message corresponds to the data retrieval response message. Acknowledge or grasp the header information (data search response indicator) of the short message to recognize that this short message corresponds to the data search response message. Then, the application server 60 collects the data search results inserted into each short message received from the other mobile communication terminals 70a, 70b, and 70c to generate a data search result list. After designating a web page displaying a list as a specific URL, constructing a callback message pointing to this data search result list URL, and specifying a destination telephone number as the telephone number of the mobile terminal 10 on the one side. The callback message is transmitted in a known SMS manner (208, 209). In particular, a single short message may not display all of the data search result lists, and the data search results list may be displayed on the swap (web) page to provide subscribers with a clear view of the search results. It is desirable to insert only the information for the connection into the callback message. In addition, in order to protect the information of the other subscribers who responded to the data retrieval, the data retrieval result list is provided to the subscriber who requested the data retrieval without including the information of the other subscriber (mobile phone terminal number, name, etc.). In order to connect data channels between mobile communication terminals, it is preferable to keep only terminal information such as a mobile communication terminal phone number in the application server 60 only.

Accordingly, the callback message transmitted from the application server 60 is forwarded to the SMS center 50, and the SMS center 50 checks the destination phone number of the callback message to the mobile communication terminal 10 of one side corresponding to the receiver. Route the callback message to the server (210).

Accordingly, the mobile communication terminal 10 receives a callback message indicating a data search result list URL. The mobile communication terminal 10 receives a subscriber's wireless Internet access button operation or the wireless P2P agent. According to the program setting, the user accesses a swap (web) page on which the data search result list URL indicated by the callback message, that is, the data search result list configured in the application server 60 is displayed (211). At this time, as in the known wireless Internet service, in the present invention, when the mobile communication terminal 10 of one side attempts to access the data search result list URL, the packet data serving node 40 is connected to the mobile communication terminal 10 of the one side. After the mobile IP address allocation / registration process is performed, the connection between the mobile communication terminal 10 and the application server 60 is established, and a detailed description of this well-known process will be omitted.

Thereafter, the data search result list swap (web) page is displayed on the display in one mobile communication terminal 10, and the subscriber checks a specific item on the data search result list swap (web) page and requests a download (or a list). Checks a specific mobile terminal at &lt; RTI ID = 0.0 &gt; and downloads &lt; / RTI &gt; It will be described by taking an example of selecting the other mobile communication terminal corresponding to the (2), the application server 60 in the terminal information (phone number) of the other mobile communication terminal 70a corresponding to the subscriber's requirements (213). In addition, it is preferable that the wireless Internet connection of the mobile communication terminal 10 of one side is released after the data download request of the subscriber is completed, and the data channel between the mobile communication terminal 10 of one side and the mobile terminal of the other side is later released. When attempting to connect to a mobile IP address may be re-assigned to the mobile communication terminal 10 of one side.

Then, the application server 60 constitutes a short message in which the question of whether to permit sharing of data is inserted, and the telephone of the other mobile communication terminal 70a in which the destination telephone number of the short message is confirmed in step 213. The short message is transmitted by a known SMS method (214). In particular, the data of the short message containing the question of whether to allow sharing of data is included in the body of the short message including data attribute information and counterpart terminal information (one mobile communication terminal information), and to whom subscribers of the other mobile communication terminal 70a. It is advisable to get the data sharing permission from the subscriber by letting them know that it will be shared.

Thus, the short message transmitted from the application server 60 is forwarded to the SMS center 50, the SMS center 50 checks the destination phone number of the short message to the other mobile communication terminal 70a corresponding to the receiver Route the short message to the server (215).

Accordingly, the mobile communication terminal 70a of the other side receives a short message in which the question of permission to share data is inserted, and when the subscriber refuses to share data, the mobile communication terminal 70a of the other side receives the short message. Insert the subscriber's data sharing refusal to the SMS center 50, and when the subscriber permits the data sharing, the other mobile communication terminal 70a inserts the subscriber's data sharing permission into the short message. Send to SMS center 50 (216, 217). In the figure, the subscriber will allow data sharing as an example.

Accordingly, the short message transmitted from the mobile terminal 70a of the other side is routed to the SMS center 50, and the SMS center 50 checks the destination phone number of the short message to the application server 60 corresponding to the receiver. Forward this short message to 218.

Accordingly, the application server 60 receives a short message in which the data sharing permission is inserted, and thus the application server 60 detects the source telephone number of the short message, and the terminal having the data sharing permission is performed by the mobile communication of the other side. It is confirmed that the terminal 70a (219).

Thereafter, the application server 60 requests the packet data serving node 40 to allocate the mobile IP address to the mobile terminal 70a on the other side (220), whereby the packet data serving node 40 makes the other side. Assigns a mobile IP address to the mobile communication terminal 70a, registers the mobile IP address with a known home location register (HLR), and returns the mobile IP address to the application server 60 (221a, 221b). In addition, when the application server 60 receives a data sharing permission from the other mobile communication terminal 70a as a short message, the SMS server 50 transmits a short message in which the data sharing permission of the mobile communication terminal 70a is inserted. By transmitting the notification to the mobile communication terminal 10 of one side.

The reason for assigning / registering a mobile IP address to the other mobile communication terminal 70a as described above is that data transmission and reception between the mobile communication terminal 10 on one side and the mobile communication terminal 70a on the other side is performed through the wireless Internet. In the case where the other mobile communication terminal 70a is not currently connected to the wireless Internet (when a mobile IP address is not assigned), the mobile communication terminal 10 on one side may be connected to the other mobile communication terminal ( Since the destination mobile IP address corresponding to 70a) is not known, the connection cannot be made between the terminals. Therefore, even if the subscriber of the other mobile communication terminal 70a does not use the wireless Internet service, the mobile IP address is allocated to the other mobile communication terminal 70a.

Then, the application server 60 generates a callback message indicating the destination mobile IP address received from the packet data serving node 40 and designates the destination telephone number as the telephone number of the mobile communication terminal 10 on the one side. Forward the callback message to SMS center 50 (222, 223).

Accordingly, the callback message transmitted from the application server 60 is forwarded to the SMS center 50, and the SMS center 50 checks the destination phone number of the callback message to the mobile communication terminal 10 of one side corresponding to the receiver. Route this callback message to 224.

Accordingly, the mobile communication terminal 10 receives a callback message indicating a destination mobile IP address corresponding to the mobile communication terminal 70a of the other side. In accordance with the operation of the Internet access button or the program setting of the wireless P2P agent, the mobile terminal automatically accesses the destination mobile IP address indicated by the callback message, that is, the other mobile communication terminal 70a (225). In this case, it will be easily understood by those skilled in the art that the mobile IP address allocation / registration process is performed when the wireless Internet connection of the mobile communication terminal 10 of one side is released.

Therefore, the mobile communication terminal 10 of one side and the mobile communication terminal 70a of the other side are connected to the data channel through the wireless Internet, and the mobile communication terminal 10 of the one side of the other mobile communication terminal 70a through the data channel. ), The previously requested data, "Dokdo is our land. MP3" is downloaded (226). In addition, since the mobile IP address assigned to the mobile communication terminal 70a of the other side is not made according to the subscriber's wireless Internet connection request, the mobile communication terminal 70a of the other side is connected to the mobile communication terminal 10 of the other side. When connected to a data channel, it is desirable to notify the subscriber that the data transmission will be informed, and may prevent the data transmission from being made in response to the subscriber's refusal of recognizing the information of the mobile communication terminal 10 on one side. .

On the other hand, charging processing for the wireless P2P service disclosed in the present invention needs to be made. Accordingly, the application server 60 allows the service fee to be charged to the mobile communication fee of the subscriber who requested data retrieval by SMS through interworking with the charging / authentication / verification (AAA server) of the mobile communication system. In particular, it is desirable to process the SMS fee for subscribers responding to the data retrieval for a certain amount or free of charge to the subscriber who requested the data retrieval. In addition, since the subscriber's SMS request for data retrieval is delivered to a large number of subscribers, it is preferable to charge the service fee regardless of the number of subscriptions or the number of SMS transmissions, since the subscriber may burden the service fee for each SMS.

And, it is necessary to protect the content copyright when providing the wireless P2P service disclosed in the present invention. In particular, since the application server 60 processes only data retrieval and responses between the mobile communication terminals and does not directly connect the mobile communication terminals, copyright protection and content usage fee processing are performed for contents that are shared by P2P between the mobile communication terminals. Is difficult. Accordingly, the wireless P2P agent mounted on the mobile communication terminal provides the mobile terminal information and the corresponding content information which has been downloaded to the application server 60 in a short message when the content is transmitted to another mobile communication terminal. In the application server 60, it is preferable to further charge the content fee in addition to the service fee for the subscriber.

While the content of the present invention has been described by way of examples, the embodiments of the present invention are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention. Those skilled in the art to which the present invention pertains may modify or alter the present invention in various forms within the principles and scope described in the claims herein.

As described above, the present invention can provide a P2P service to a subscriber even in a mobile communication network. In particular, data search and data search result response processing can be performed even between mobile communication terminals not connected to the wireless Internet. It has the effect of enabling sharing.

In addition, since the present invention processes the data retrieval and the data retrieval result response by SMS, the P2P service can be properly provided even with limited system resources (eg, mobile communication bandwidth, wireless Internet service, etc.) of the mobile communication network. There is no effect on the load at all.

In addition, the present invention can reduce the burden on the packet data charge because the mobile terminal subscriber can be provided with the P2P service without using the wireless Internet service.

In addition, the present invention connects the mobile communication terminals when the data sharing permission is granted without exposing the subscriber's information in response to the data retrieval and the data retrieval result. It is effective to prevent it.

Claims (18)

In the peer-to-peer (P2P) service providing method, A first step of inquiring mobile communication terminals subscribed to the service when receiving a short message in which a data search word is inserted from the mobile communication terminal A by relaying an SMS center; A second step of designating a source of the received short message as the service telephone number and transmitting the received short message to the inquired mobile communication terminals by relay of an SMS center; When receiving the short message containing the data search result from the mobile communication terminals by the relay of the SMS center as a result of the short message transmission in the second step, each data search result is collected to form a data search result list swap page. A third step of transmitting a callback message in which a data search result list URL indicating the swap (web) page is inserted to the mobile communication terminal A by relaying an SMS center; When a specific data download request signal is received from the mobile communication terminal A on the data search result list swap (web) page, the corresponding mobile communication terminal B is checked and a question of whether to allow data sharing is inserted by the relay of the SMS center. Transmitting a short message to the mobile communication terminal B; As a result of the transmission of the short message in the fourth step, if the short message containing the data sharing permission is inserted from the mobile communication terminal B by the relay of the SMS center, the data sharing permission is inserted by the relay of the SMS center. Transmitting a short message to the mobile communication terminal A and requesting the packet data serving node to allocate a mobile IP address to the mobile communication terminal B when the mobile communication terminal B allows data sharing; And Receiving a mobile IP address assigned to the mobile communication terminal B from the packet data serving node as a result of the request, and transmitting a callback message including the mobile IP address to the mobile communication terminal A by a relay of an SMS center; P2P service providing method in an application server comprising a. The method of claim 1, A data search word is inserted into a body of a short message received from the mobile communication terminal A, wherein the data search word includes a file name and file attribute information. The method of claim 1, The data search result is inserted in the body of the short message received from the mobile communication terminals except for the mobile communication terminal A. The data search result includes data existence, file name, file attribute information, and terminal communication in the corresponding mobile communication terminal. P2P service providing method in an application server characterized in that it comprises a status. The method of claim 1, The question of whether to allow data sharing is inserted in the body of the short message transmitted to the mobile communication terminal B. The question of whether to allow data sharing corresponds to the information and the shared file of the mobile communication terminal A corresponding to the sharer. Method for providing a P2P service in an application server, characterized in that it comprises attribute information of the data. The method according to any one of claims 1 to 4, In the first step, the destination phone number of the short message received from the mobile communication terminal A is identified and recognized as a data search request message or the body content of the short message received from the mobile communication terminal A is identified as the data search request message. A method for providing P2P service in an application server, comprising: recognizing or recognizing header information of a short message received from a mobile terminal A as a data search request message. The method of claim 5, wherein In the first step, P2P service providing method in the application server, characterized in that the authentication of the subscriber of the mobile terminal A subscriber before the process of inquiring the service subscription mobile communication terminals. The method according to any one of claims 1 to 4, In the second step, a plurality of short messages received from the mobile communication terminal A are copied and the source telephone number of each copied short message is designated as the service telephone number, and the mobile telephone number in which the destination telephone number is retrieved in the first step. Method of providing a P2P service in the application server, characterized in that the designation by the phone number of each terminal. The method according to any one of claims 1 to 4, In the third step, the destination telephone number of the short message received from each mobile communication terminal is identified and recognized as a data search response message, or the body content of the short message received from each mobile communication terminal is identified as a data search response message. A method for providing P2P service in an application server, comprising: recognizing or identifying header information of a short message received from each mobile communication terminal as a data search response message. The method of claim 8, In the third step, P2P service providing method in the application server, characterized in that to configure the data search results list swap (web) page by excluding the information of each mobile communication terminal that responded to the data search results. The method according to any one of claims 1 to 4, In the mobile communication terminal A, upon receiving a callback message in which the destination mobile IP address is inserted from the application server by the relay of the SMS center, the mobile communication terminal corresponding to the destination mobile IP address according to the program setting or the user's wireless Internet connection request is received. The method of claim 2, wherein the specific data is downloaded from the mobile communication terminal B through a data channel by connecting to the terminal B. The method according to any one of claims 1 to 4, In the mobile communication terminals other than the mobile communication terminal A, when the short message including the data search word is inserted from the application server by the relay of the SMS center, the data stored in the terminal is searched for using the data search word. How to provide P2P service in application server. The method of claim 11, In the mobile communication terminals other than the mobile communication terminal A, when generating a data search result, the P2P service providing method in the application server characterized in that the output signal size between the currently connected base station is checked and used as terminal communication state information. . The method of claim 11, In the mobile communication terminals except for the mobile communication terminal A, the source telephone number of the short message received from the application server is recognized by the relay of the SMS center and recognized as a data search request message or received from the application server by the relay of the SMS center. In the application server characterized in that the content of the received short message is recognized as a data search request message or the header information of the short message received from the application server by the relay of the SMS center is recognized as a data search request message. How to Provide P2P Services. In the peer-to-peer (P2P) service providing method, A first step of inserting the data search word into a short message when receiving a data search word from a user, and designating a destination as the service telephone number and transmitting the short text message to an SMS center; A second step of receiving a callback message in which a data search result list URL is inserted from an application server by a relay of an SMS center as a result of the short message transmission; A third step of accessing a web page corresponding to a data search result list URL when receiving a wireless Internet access request for the second callback message from a user; A fourth step of requesting a corresponding data download to the application server when a specific data download request on the data search result list swap (web) page is received from a user; As a result of the data download request, the SMS center receives a short message containing the fact that the mobile terminal B permits data sharing from the application server by the relay of the SMS center. Receiving a callback message in which a destination mobile IP address is inserted from the application server by a relay; And Receiving a wireless Internet access request for the callback message of the fifth step from a user, accessing the mobile communication terminal B corresponding to the destination mobile IP address, and downloading the specific data from the mobile communication terminal B through a data channel; step P2P service providing method in a mobile communication terminal comprising a. The method of claim 14, The data search word includes a file name and file attribute information, and is inserted into the body of a short message. The method according to claim 14 or 15, The data search result list on the data search result list swap (web) page provides P2P service in a mobile communication terminal, including whether data exists in a specific mobile communication terminal, file name, file attribute information, and terminal communication status. Way. On the P2P service providing server connected to the mobile communication network, A first step of inquiring mobile communication terminals subscribed to the service when receiving a short message in which a data search word is inserted from the mobile communication terminal A by relaying an SMS center; A second step of designating a source of the received short message as the service telephone number and transmitting the received short message to the inquired mobile communication terminals by relay of an SMS center; When receiving the short message containing the data search result from the mobile communication terminals by the relay of the SMS center as a result of the short message transmission in the second step, each data search result is collected to form a data search result list swap page. A third step of transmitting a callback message in which a data search result list URL indicating the swap (web) page is inserted to the mobile communication terminal A by relaying an SMS center; When a specific data download request signal is received from the mobile communication terminal A on the data search result list swap (web) page, the corresponding mobile communication terminal B is checked and a question of whether to allow data sharing is inserted by the relay of the SMS center. Transmitting a short message to the mobile communication terminal B; As a result of the transmission of the short message in the fourth step, if the short message containing the data sharing permission is inserted from the mobile communication terminal B by the relay of the SMS center, the data sharing permission is inserted by the relay of the SMS center. Transmitting a short message to the mobile communication terminal A and requesting the packet data serving node to allocate a mobile IP address to the mobile communication terminal B when the mobile communication terminal B allows data sharing; And Receiving a mobile IP address assigned to the mobile communication terminal B from the packet data serving node as a result of the request, and transmitting a callback message including the mobile IP address to the mobile communication terminal A by a relay of an SMS center; A computer-readable recording medium having recorded thereon a program for realizing this. In a mobile communication terminal having a processor, A first step of inserting the data search word into a short message when receiving a data search word from a user, and designating a destination as the service telephone number and transmitting the short text message to an SMS center; A second step of receiving a callback message in which a data search result list URL is inserted from an application server by a relay of an SMS center as a result of the short message transmission; A third step of accessing a web page corresponding to a data search result list URL when receiving a wireless Internet access request for the second callback message from a user; A fourth step of requesting a corresponding data download to the application server when a specific data download request on the data search result list swap (web) page is received from a user; As a result of the data download request, the SMS center receives a short message containing the fact that the mobile terminal B permits data sharing from the application server by the relay of the SMS center. Receiving a callback message in which a destination mobile IP address is inserted from the application server by a relay; And Receiving a wireless Internet access request for the callback message of the fifth step from a user, accessing the mobile communication terminal B corresponding to a destination mobile IP address, and downloading the specific data from the mobile communication terminal B through a data channel; A computer-readable recording medium having recorded thereon a program for realizing this.

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