KR20050009802A - Method for setting the transmission platform using remote method invocations of java in communication between peer to peer - Google Patents

Abstract

PURPOSE: A method for setting up a peer-to-peer communication platform using Java RMI(Remote Method Invocations) is provided to provide an integrated peer-to-peer communication development environment to Java application program developers by adding a Java RMI function and a push registry-based application program when setting up a communication platform. CONSTITUTION: A Java application program developer(410) requests a Java communication API(Application Program Interface) developer(420) to develop a communication API if a peer-to-peer communication function is required(401,402). The Java communication API developer develops a peer-to-peer standard API using RMI(421), makes a manual, and provides it to the Java application program developer(422). At the same time, the Java communication API developer connects a communication module, based on a communication method, to a Java API(423). The Java application program developer, receiving the manual from the Java communication API developer, comprehends how to use the Java standard communication API(403). Then, if the Java application program developer is notified that the communication module has been connected to the Java API(424), the Java application program developer changes invocation types according to a communication method(404).

Description

Method for setting the transmission platform using remote method invocations of java in communication between peer to peer}

The present invention relates to a method for setting a terminal-to-terminal communication platform using Java RMI, and more particularly, to provide a communication convenience in a peer-to-peer (P2P) mutual communication method using a Java application program. The present invention relates to a method for setting a terminal-to-terminal communication platform using Java RMI that adds a push registry-based application program and configures a communication platform.

Java technology is a technology introduced by Sun Microsystems that proposes a distributed network method for finding and interacting with devices and services connected to a network.

Distributed network systems often include a number of machines, such as computers and mobile communication terminals and associated peripherals, connected by a network such as a local area network (LAN), a broadband network (WAN), or the Internet.

Distributed network systems typically require different address spaces, potentially computing entities running on different machines (ie, applications, programs, applets, etc.) to be able to communicate.

For basic communication mechanisms, distributed object-oriented network systems use remote procedure invocation (RPC) called remote method invocations (RMI).

The RMI facilitates application level communication between " objects " residing in different address spaces.

In an object oriented system, a "class" provides a template for the creation of an "object" (representing an item or an instance manipulated by the system) with the characteristics of that class.

The term template refers to an object (ie data item) within each class sharing any property or property determined by the same class as the method.

Objects are typically created dynamically during system operation, and methods associated with a class are typically invoked (ie, caused to operate) on objects of the same class.

RMI is an act of invoking a method of a remote object and in response to using RMI to invoke a method of a remote object, the lower level communication processor causes the called method to be executed on the remote object.

In the conventional mobile communication terminal, the method of communicating with other mobile communication terminals using the Java application program (RMI) is extremely limited and provides a simple socket communication type development environment. Therefore, the development environment is extremely poor. .

Accordingly, the present invention has been proposed to solve the above-described problems, and the Java RMI function and push registry (Push) which provides communication convenience in a P2P (P2P) peer communication method using a Java application program. The purpose of this article is to provide a terminal-to-terminal communication platform setting method using Java RMI that adds a response program.

Java's RMI is a technology that provides development convenience by librarying low-level data communication that a developer should take charge of for client / server data communication. It is a server in communication between logically and physically separated client / server. Provides a way to use the functions defined in the client as if they were your own.

The present invention provides Java application program developers with RMI libraries of various communication bases that can be used in mobile communication terminals such as IrDA (infrared) communication, serial communication, as well as basic TCP / IP-based communication in RMI library. To provide convenience for development.

In addition, in order to provide convenience and efficiency in running a server-type Java application in a mobile communication terminal, a push registry based application program driving scenario is provided.

In order to achieve the above object, the present invention provides a method for setting a communication platform of a mobile communication terminal to a mobile communication terminal, wherein the long-range wireless communication and the short-range wireless communication that can be used in the mobile communication terminal library library development RMI communication environment And constructing a communication environment by cooperatively modularizing a push registry in an RMI library so that the mobile communication terminal runs a server-type Java application program.

Building the RMI development communication environment by librarying the remote and short-range communication may include establishing socket (TCP / IP) communication, which is remote communication, between the first mobile communication terminal and the second mobile communication terminal; After establishing TCP / IP communication, set up IrDA (infrared) wireless communication, Bluetooth wireless communication, or serial wired communication using a cable between the first mobile communication terminal and the second mobile communication terminal. It comprises a step.

The RMI library includes socket (TCP / IP) communication, IrDA (infrared ray) communication, Bluetooth communication, and serial communication. The push registry link module includes a WAP push, an IrDA (infrared ray) push, and the like. It consists of various pushes.

The present invention provides a method for setting a communication platform of a mobile terminal versus a mobile terminal, wherein the Java application program developer of the terminal requests a Java API developer to develop a communication API when a terminal-to-terminal communication function is required; In response to the request, the Java communication API developer develops a phone-to-phone standard API using RMI, makes a manual, distributes it to a Java application developer, and simultaneously connects a communication module according to the communication method to the Java API, and the Java application When the program developer is familiar with the usage of the standard communication API implemented in the Java RMI of the manual, and receives a notification that the connection to the communication module Java API is completed, changing the calling format according to the communication method, and the new communication method is If it is introduced, the communication module according to the newly introduced communication method And repeatedly connecting to the API, and at the same time, repeatedly changing the calling format according to the newly introduced communication method.

The new communication method is a communication method changed from arbitrary communication, such as socket (TCP / IP) communication, and short-range communication, IrDA (infrared) communication, serial communication, and Bluetooth communication.

The present invention provides a method for setting a communication platform of a mobile communication terminal to a mobile communication terminal, wherein the calling terminal of the mobile communication terminal executes a Java application program for terminal-to-device wireless communication, and executes the Java application program. Then, the Java RMI module for activating the push registry is activated to request a call-to-phone connection to the called party's terminal, and if the connection is established, communicating.

The present invention provides a method for setting a communication platform of a mobile communication terminal to a mobile communication terminal, wherein the receiving terminal of the mobile communication terminal executes a Java application program for terminal to terminal wireless communication, and executes the Java application program. After registering the terminal in the push registry and activating the hardware communication module (Active), when the connection request from the call terminal with the hardware communication module is activated, if the registration in the push registry to succeed And executing a Java application program, and when the Java application program is executed, a Java RMI module is driven to perform phone-to-phone communication.

1 is a block diagram illustrating a distributed network operating state of a mobile communication system to which the present invention is applied;

FIG. 2 is a block diagram of a library for constructing an RMI development environment by libraryizing long range wireless communication and short range wireless communication according to an embodiment of the present invention; FIG.

3 is a diagram illustrating a platform configuration for establishing a terminal-to-terminal communication environment by linking a Java RMI and a Push Registry as an embodiment of the present invention.

4 is a flowchart illustrating an operation flow of establishing a wireless communication environment using RMI of Java as an embodiment of the present invention.

5 is a flowchart showing the operation flow of a terminal making a call in the wireless communication of the terminal to the terminal of the present invention.

6 is a flow chart showing the operation of the terminal receiving the call in the wireless communication of the terminal to terminal of the present invention.

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

1 is a block diagram illustrating a distributed network operation state of a mobile communication system to which the present invention is applied. The mobile communication system may include a computer 180 through an Internet or a dedicated Internet network of a general landline telephone 170. Connect with

The computer 180 has a code file to be transmitted to the terminal 110, and each code file is divided into a predetermined size and compressed.

In order to connect directly with the computer 180, the mobile communication switching center 150 is connected through a network connected with a public switched telephone network (PSTN) / ISDN / Internet network 160, and the public switched telephone network Device 140 and base station controller 130 connected to a PSTN / ISDN / Internet network 160, a base station 111 connected to the base station controller 130, and the base station 111 It consists of a mobile communication terminal 110 connected via a wireless link.

The base station 111 serves to change the signal format between the mobile communication terminal 110 and the mobile communication switching center 150 to be suitable for a wireless link and a wired link, and transmit and receive electric field strength of the mobile communication terminal 110 (propagation). Reception strength) is measured and provided to the mobile communication switching center 150.

The base station controller 130 serves as an access means between each element of the base station 111 and the cell operator, and manages a plurality of base station operations, manages service states of base station hardware and software, and allocates and configures resources for call traffic. It performs functions such as establishing information on base station operation, base station operation, monitoring, and monitoring of subordinate devices related to failures.

The mobile communication switching center 150 provides a circuit switching service to the base station controller 130 and the mobile communication terminal 110 and has a channel handoff function as an additional function.

The device 140 may be any of a number of devices such as printers, facsimile machines, storage devices, other computers, or other devices as various servers or peripheral devices of PCs and mobile communication terminals.

The server may be any server among various server types such as various message servers, multimedia servers, and email servers.

Through the expanded device 140, various servers can be shared by a PC and a mobile communication terminal, and when a server is designated, various messages or e-mail addresses stored in the server can be efficiently searched for and used.

The network 160 may be a local area network (LAN), a broadband network (WAN), or the Internet.

Although only the mobile terminal 110 and the computer 180 and one device 140 are shown to constitute an exemplary distributed network system, those skilled in the art will appreciate that the exemplary distributed network system is an additional mobile terminal and computer. Or a device.

In the distributed network system, the configuration of the present invention is largely divided into two types.

The first part is to build RMI development wireless communication environment by compile socket (TCP / IP) communication which is used in mobile communication terminal, IrDA (infrared ray) communication, serial communication, and Bluetooth communication which are local communication. The second part is to build a terminal-to-terminal wireless communication environment by connecting Java RMI and Push Registry to run server-type Java applications.

FIG. 2 is a block diagram illustrating an RMI development environment by librarying the first long range wireless communication and the short range wireless communication according to an embodiment of the present invention. The first mobile communication terminal 210 and the second mobile communication are shown in FIG. A socket (TCP / IP) communication 201, which is a long distance communication, is opened between the communication terminals 220.

The socket (TCP / IP) is an identifier for identifying a specific service on a specific node (for example, a base station) of any communication network. The socket is composed of a node address and a port number for identifying a service. For example, port 80 on an Internet node represents a World Wide Web (WWW) server.

After opening the remote communication socket (TCP / IP) communication 201, IrDA (infrared ray) wireless communication 202, which is short-range communication, is established between the first mobile communication terminal 210 and the second mobile communication terminal 220. Or via Bluetooth wireless communication 203 or through serial wired communication 204 using a cable.

3 is a diagram illustrating a platform configuration for establishing a terminal-to-terminal communication environment by connecting the second Java RMI and a push registry as an embodiment of the present invention. The RMI library 320 and the push registry association module 330 are constructed.

In the Java RMI library 320, a socket (TCP / IP) communication 321, which is a telecommunication, a IrDA (infrared ray) communication 322, a Bluetooth communication 323, a serial communication 324, which is a short-range communication, An RMI development wireless communication environment is established, and a push push 331, an IrDA (infrared ray) push, and various other pushes 333 are constructed in the push registry connection module 330.

The role of the RMI library 320 basically replaces the low-level data communication that the developer is responsible for.

Due to the characteristics of the mobile communication terminal, there may be several types of communication types listed above, and each communication type has its own protocol.

If Java application program developers are familiar with these low-level protocols and develop applications in a non-standardized form, it is natural that consistency and development efficiency decrease.

If the RMI is used to equalize the development environment of the communication type that can be used in the mobile communication terminal, systematically build a low level communication program library, and then develop the application program, the efficiency will be increased.

In addition, the following constraints on driving a server-type Java application program in the mobile communication terminal can be solved through the push registry linkage module 330.

Due to the characteristics of the mobile terminal, no application program is run in a special idle state (the terminal is resting).

Because server-type applications must always be ready to serve themselves, they must be up and running in order to handle the requirements of the client's request.

Therefore, there is a need for a method that requires the server program to be run in some way before processing the client's request.

The meaning of the push means a message or event type that is generated from the outside passively or asynchronously rather than a message generated actively or synchronously in the mobile communication terminal.

Such a push may be a swap push 331 used in a WAP or an event by setting a timer of the mobile communication terminal itself.

In addition, the infrared push 332 for connecting the infrared (IrDA) communication, the serial communication, the event of the moment of connection of the Bluetooth communication may be made in the form of various push 333.

The push registry linkage module 330 refers to a function of managing a list of application programs driven in response to the push.

By adding the push registry linkage module 330 to the RMI library 320 of Java, it is easy to develop a client / server application program that is the basis of P2P communication in a mobile communication terminal and to use a service.

4 is a flowchart illustrating an operation flow of establishing a wireless communication environment using RMI of Java as an embodiment of the present invention.

In FIG. 4, when the Java application developer 410 needs a phone-to-phone communication function, which is a terminal-to-terminal communication function (401), a Java API application (Application Program Interface or Application Process Invocation) developer 420 requests a communication API development (402). )do.

Then, the Java communication API developer 420 develops a phone-to-phone standard API using the RMI (421) and then makes a manual and distributes it to the Java application developer (410) (422) and at the same time the communication module according to the communication method Java API Connect to (423).

The Java application developer 410 receives the manual from the Java communication API developer 420 and then reads (403) how to use the standard communication API implemented in Java RMI.

Then, upon receiving notification 424 that the connection 422 to the communication module Java API is completed, the Java application developer 410 changes the calling format according to the communication method (404).

When the new communication method 430 is introduced, the communication module according to the newly introduced communication method is repeatedly connected 423 to the Java API, and at the same time, the calling format according to the newly introduced communication method is repeatedly changed (404). )do.

Changing the call format 404 according to the communication method is for example

PtoPOpen (socket: //-)

PtoPOpen (IrDA: //-)

PtoPOpen (BlueTooth: // ..)

PtoPGetData (); Same as

The new communication method 430 refers to a communication method changed from arbitrary communication to socket (TCP / IP) communication, and short-range communication, IrDA (infrared ray) communication, serial communication, and Bluetooth communication.

FIG. 5 is a flowchart illustrating an operation flow of a terminal making a call in wireless communication between a terminal and a terminal of the present invention, and the call terminal 510 executes a Java application for phone-to-phone wireless communication, which is terminal-to-terminal communication (501). do.

The call terminal 510 executes a Java application (501) and then drives (502) a Java RMI module that activates a push registry to request a call-to-phone connection to the called party terminal 610 (503). If it fails, it requests a connection again (503). If the connection is successful, communication is started (505) and the operation ends when the communication is completed.

FIG. 6 is a flowchart illustrating an operation flow of a terminal receiving a call in the terminal-to-terminal wireless communication of the present invention. The call receiving terminal 610 executes a Java application for phone-to-phone wireless communication, which is terminal-to-terminal communication (601). )do.

The call receiving terminal 610 executes a Java application 601 and registers its terminal in the push registry 602 to activate a hardware communication module 603.

When the connection request 604 is received from the call terminal 510 while the call receiving terminal 610 activates its own communication module (Active) 603, it is registered in the push registry 620 (605). If the registration 605 fails, the operation ends, and if the registration 605 succeeds, the Java application is executed (606).

When the Java application is executed (606), the Java RMI module is driven (607) to start the phone-to-phone communication (608) and terminates the operation when the communication is completed.

As described in detail above, the present invention provides an RMI function and a push registry-based application program of Java, which provides communication convenience in a P2P (peer to peer) communication method using a Java application program. By setting up the communication platform, it provides the integrated application of phone-to-phone communication to the Java application developer, the ease of client / server development of push-based terminal, and the systematic phone-to-phone Java application by providing the uniformity and consistency of the communication development environment. Provides useful effects that enable development.

Claims (8)

In the method for setting the communication platform of the mobile terminal to the mobile terminal, Establishing a RMI development communication environment by librarying long range wireless communication and short range wireless communication that can be used in the mobile communication terminal; A terminal-to-terminal communication platform using Java RMI, comprising the step of establishing a communication environment by integrating and modularizing a push registry in the RMI library so that the mobile communication terminal runs a server-type Java application program. How to set up. The method according to claim 1, Building the RMI development communication environment by librarying the remote and short-range communication may include establishing socket (TCP / IP) communication, which is remote communication, between the first mobile communication terminal and the second mobile communication terminal; After establishing the socket (TCP / IP) communication, the IrDA (infrared ray) wireless communication, which is a short-range communication between the first mobile communication terminal and the second mobile communication terminal, or the Bluetooth wireless communication, or a serial cable using a cable Method of setting a terminal-to-terminal communication platform using Java RMI, characterized in that it comprises the step of setting the communication. The method according to claim 1, The RMI library comprises a socket (TCP / IP) communication, IrDA (infrared ray) communication, Bluetooth communication and serial communication method comprising the terminal-to-terminal communication platform setting using Java RMI. The method according to claim 1, The push registry linkage module comprises a WAP push, an IrDA push, and various other pushes. In the method for setting the communication platform of the mobile terminal to the mobile terminal, If the Java application program developer of the terminal requires the communication function of the terminal-to-terminal, requesting the Java communication API developer to develop the communication API, According to the request, the Java communication API developer develops a phone-to-phone standard API using RMI, makes a manual, distributes it to a Java application developer, and simultaneously connects a communication module according to the communication method to the Java API, The developer of the Java application program knows how to use the standard communication API implemented in the Java RMI of the manual and changes the calling format according to the communication method upon receiving notification that the connection to the communication module Java API is completed, If the new communication method is introduced, it comprises the step of repeatedly connecting the communication module according to the newly introduced communication method to the Java API, and at the same time it is repeated to change the call format according to the newly introduced communication method How to set up terminal to terminal communication platform using Java RMI. The method according to claim 5, The new communication method is a terminal-to-terminal using Java RMI, characterized in that the communication method is changed to an arbitrary communication from a socket (TCP / IP) communication, a short distance communication, IrDA (infrared) communication, a serial communication, and a Bluetooth communication. How to set up terminal communication platform. In the method for setting the communication platform of the mobile terminal to the mobile terminal, The call terminal of the mobile communication terminal executing a Java application for terminal-to-terminal wireless communication; After executing the Java application, the Java RMI module for activating the push registry is activated by requesting the call to the other terminal to call the phone-to-phone connection, if the connection is made, the terminal using the Java RMI characterized in that the connection was made How to set up terminal communication platform. In the method for setting the communication platform of the mobile terminal to the mobile terminal, A receiving terminal of the mobile communication terminal executing a Java application program for terminal-to-terminal wireless communication; Activating a hardware communication module by registering its terminal in a push registry after executing the Java application program; When the connection request is received from the call terminal in the state where the hardware communication module is activated, registering the push registry and executing the Java application if successful. When the Java application is executed, the Java RMI module is driven to perform a phone-to-phone communication method comprising the terminal-to-terminal communication platform using Java RMI characterized in that the made.