KR20030092958A - Peer to peer service method for mobile communication device using wireless application protocol - Google Patents

Abstract

PURPOSE: A P2P(Peer To Peer) service method using a WAP(Wireless Application Protocol) in a mobile terminal is provided to add an HTTP WAP server S/W module at the upper part of the WAP protocol stack of a mobile terminal so that various information and files can be shared through the P2P service as each mobile terminal can execute the functions of a server. CONSTITUTION: An IP protocol module in a server-side mobile terminal switches WAP request/response data, transmitted in the form of an IP packet, to a TCP layer so that the received IP packet can be transmitted to a TCP protocol. The TCP protocol recognizes the WAP data from the port number of the received IP packet and transfers the data to a WAP protocol stack. The WAP protocol stack authenticates and decodes the WAP data and transfers request data to an HTTP server installed in the server-side mobile terminal. The HTTP server parses the received request data and looks for desired contents. If the desired contents are found out, the HTTP server transfers the contents to a WAP task so that the HTTP response can be transferred as the WAP data.

Description

P2P service method using BA of mobile communication terminal {PEER TO PEER SERVICE METHOD FOR MOBILE COMMUNICATION DEVICE USING WIRELESS APPLICATION PROTOCOL}

The present invention relates to a P2P service method using a WAP of a mobile communication terminal, and in particular, by adding an 'HTTP WAP server S / W module' on top of the WAP protocol stack of the terminal, so that each terminal can also function as a server The present invention relates to a P2P service method using a WAP of a mobile communication terminal that enables sharing of various information and files by a P2P service between terminals.

P2P service is short for 'Peer to Peer'. 'Peer' in English means' friend 'or' colleague '. It is a system that allows you to connect to other users' computers via the Internet and share various information or files like' friends'.

In general, unlike search services, where the information available is limited to content posted on an Internet site, P2P searches music on users' computers connected to the Internet. video. You can download files you want, such as documents. Individuals can meet and trade directly with each other without going through a portal site.

In addition, WAP is a protocol for efficiently transmitting data in a wireless propagation environment between a wireless terminal and a base station, and can operate in various wireless interfaces regardless of the type of network or terminal.

Since there is no standard web browser for mobile internet around the world, mutual cooperation among mobile phone companies is actively in progress. In this situation, WAP, one of the most popular web browsers, performs protocol conversion function through the WAP gateway. do.

The existing WAP (Wireless Application Protocol) can only be used as a client-server function, and a terminal user can use only one-way service to access a specific server and obtain information.

That is, the information desired by the individual can be obtained only through the WAP server, the personal information or resources cannot be provided to other users, and the number of clients are connected to one WAP server, thereby speeding up personalization of desired information. There was a difficult issue.

Therefore, the present invention was created to solve the above-mentioned conventional problems, by adding an 'HTTP WAP server S / W module' on top of the WAP protocol stack of the terminal so that each terminal can also function as a server Another object of the present invention is to provide a P2P service method using a WAP of a mobile communication terminal, by which various information and files can be shared by a P2P service between terminals.

In order to achieve the above object, the present invention provides a server-side terminal comprising: a first step of an IP protocol module for switching a WAP request / response data transmitted through a mobile communication network to a TCP layer; A second step of recognizing that the TCP protocol is WAP data as a port number of a received packet and transferring data to the WAP protocol stack; In the WAP protocol stack, a third step of authenticating and decoding data and delivering request data to an HTTP server mounted in a server-side terminal; The HTTP server may be configured to parse the received request data to find a desired content and deliver the desired content to the WAP task so that an HTTP response is transmitted as the WAP data.

1 is an exemplary view showing a protocol stack of a mobile communication terminal according to the present invention.

2 is a flowchart illustrating an inter-protocol operation process for a P2P service according to the present invention.

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

Many specific details, such as specific processing flows, are set forth in the following description in order to provide a more general understanding of the invention, and it is to be understood by those skilled in the art that the present invention may be practiced without these specific details. Will be self explanatory.

In addition, detailed description of well-known functions and structures which are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

Figure 1 is an exemplary view showing a protocol stack of a mobile communication terminal according to the present invention, each terminal is provided with a protocol stack for using WAP, by adding an 'HTTP WAP server module' on top of the WAP protocol, Allows the terminal to perform its function as a server.

Then, the difference between the present invention using the P2P function and the conventional terminal will be compared.

First, the basic S / W module is conventionally equipped with a browser module as a client on the WAP protocol stack, but in the present invention, the HTTP server module is mounted, and in the conventional communication structure, communication is performed as a WAP gateway and a WAP protocol. In the present invention, a PPP (Point to Point) method is connected to the counterpart terminal without passing through the WAP gateway, thereby communicating with the WAP protocol of the counterpart terminal.

Next, in the conventional method of sharing resources, data was exchanged between users as a sound and image attachment through SMS / EMS, but the present invention grants a user access to a desired user by downloading a shared material directly. I can receive it.

Next, in the conventional service method, client service is provided by a WAP server and a terminal-to-terminal server. However, in the present invention, a P2P WAP service is possible in which an individual can be a WAP server and a WAP client.

As such, in the case of implementing the P2P service in the terminal, the homepage of each terminal user can be constructed as a server in the phone.

2 is a flowchart illustrating an inter-protocol operation process for a P2P service according to the present invention, wherein one of two terminals serving as a P2P service becomes a server and the other terminal becomes a client to make a request / response.

First, when WAP Request / Response data is transmitted as an IP packet through a mobile communication network, the IP protocol module of the terminal processes the packet when receiving the IP packet. It is switched to UDP and TCP layers as protocol field values among packet header information.

Next, the HTTP request / response data is transmitted as the TCP protocol. The TCP protocol verifies the data and performs error / flow control of the packet. In addition, the TCP protocol recognizes WAP data as a port number of a received packet and transfers data to the WAP protocol stack.

At this time, the WAP protocol stack authenticates the data, decodes it, and delivers the request data to an HTTP server, which is an application server mounted in the terminal.

The HTTP server also parses the received request data to find the desired content. Data such as WML, image, ringtone, and wallpaper are stored in NVRAM, and the HTTP server finds the desired content through the memory (NVRAM) interface.

When the desired content is found, the HTTP server delivers it to the WAP task, so that the HTTP response is delivered as WAP data.

At this time, the memory (NVRAM) task manages the P2P WAP contents and is stored in a file structure.

Next, the WML application agent (Browser) mounted on the other terminal is a client that communicates with the HTTP server. The WML application agent receives the content list from the server side terminal as WML data and displays it on the LCD screen through the display driver.

Accordingly, when the client-side terminal user selects the desired content from this list, the client side makes a request to the HTTP server through the WAP task.

As a result, a request / response is made between the two terminals as a server and a client, so that various information and files can be shared.

As described above, the P2P service method using the WAP of the mobile communication terminal of the present invention adds an 'HTTP WAP server S / W module' to the WAP protocol stack of the terminal so that each terminal can also function as a server. In addition, there is an effect of sharing various information and files by the P2P service between each terminal.

Claims (3)

In performing a P2P service using a mobile communication terminal, The server-side terminal comprises: a first step of the IP protocol module for switching the WAP request / response data transmitted through the mobile communication network to the TCP layer and transmitting the TCP protocol; A second step of recognizing that the TCP protocol is WAP data as a port number of a received packet and transferring data to the WAP protocol stack; In the WAP protocol stack, a third step of authenticating and decoding data and delivering request data to an HTTP server mounted in a server-side terminal; The HTTP server parses the received request data, finds the desired content, delivers the desired content to the WAP task, and transmits the HTTP response as WAP data. The terminal of claim 1, wherein the client side terminal communicating with the server side HTTP server comprises: A first step of receiving a content list from a server-side terminal as WML data through a WML application agent (Browser) and outputting it to a screen; And a second step of requesting an HTTP server through a WAP task when the client-side terminal user selects a desired content from the list. The method of claim 1, wherein the contents are WML, image, ringtone, wallpaper, and the like, and are stored in a file structure in a memory (NVRAM).