KR101942484B1 - Method for configuring short range wireless communication, device, and recording medium thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for establishing a short-range wireless communication, an apparatus thereof, and a recording medium therefor. As an embodiment of the present invention, a short-range wireless communication setting method includes searching for another device having the same group ID as a preset group ID, establishing short-range wireless communication automatically using another device and a group ID And establishing a short-range wireless communication with another device, the method includes sharing data with another device.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method and apparatus for establishing short-range wireless communication,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for establishing short-range wireless communication, and more particularly, to a method for establishing short-range wireless communication between devices in a wireless communication system, a device for supporting the same, and a recording medium therefor.

Wi-Fi is a technology that represents 'Wireless Local Area Network (WLAN)' and is a communication network that can enjoy high-speed Internet at a certain radius of a place where an access point (AP) is installed. WiFi Direct is a new version of WiFi technology that enables direct WiFi connection between devices wirelessly without an internet network. If you do not need hotspots, routers, or access points, you can connect to each other and share files and networks with just those devices that support Wi-Fi Direct. Even if only one of the connecting devices supports Wi-Fi Direct, there is no problem connecting directly.

However, Wi-Fi direct technology is a one-to-one connection method between devices, and there is a need to search for and connect to other devices to be manually connected. In particular, in the case of the function of sharing the screen of a device using Wi-Fi direct technology such as Wi-Fi display (WiFi-Display), it is troublesome to manually search for a device or manually set a connection even though a separate security setting is not required .

It is an object of the present invention to provide a method for differentiating short-range wireless communication according to the degree of security of information that can be shared among devices in a short-range wireless communication system .

It is another object of the present invention to provide a method of automatically connecting a short-range wireless communication and sharing a screen with another device when sharing screens among the devices.

It is another object of the present invention to provide a method of sharing data with other devices by inputting a password set between devices connected to short-range wireless communication when sharing data such as files or phonebooks between devices.

It is still another object of the present invention to provide an apparatus that supports the above-described method.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. Lt; / RTI >

According to another aspect of the present invention, there is provided a method for establishing a local area wireless communication, comprising: searching for another device having the same group ID as a preset group ID; And establishing short-range wireless communication with another device, and sharing data with another device.

In the short-range wireless communication setting method of the present invention, the group ID is an identifier that is distinguished by the manufacturer of each apparatus.

In the short-range wireless communication setting method of the present invention, data shared with the other apparatus is a screen to be output.

A method for establishing a local area wireless communication according to the present invention includes the steps of sharing a data with another device when a password for the other device is received and a unique ID of the other device is distinguished for each device .

In the short-range wireless communication setting method of the present invention, the dedicated ID is generated in each device after short-range wireless communication with another device is established.

In the local wireless communication setting method of the present invention, the dedicated ID is generated using the group ID.

In the short-range wireless communication setting method of the present invention, the dedicated ID is generated by adding a pseudo random number generated by using a hash function to the group ID.

In the short-range wireless communication setting method of the present invention, the arbitrary random number has a size of 16 bits to 256 bits.

In the short-range wireless communication setting method of the present invention, the dedicated ID is matched with a device ID (Device Identification) capable of identifying each device in a wireless local area network (WLAN) communication system.

In the short range wireless communication setting method of the present invention, the data includes at least one of a file stored in each wireless LAN device and a telephone directory.

According to another aspect of the present invention, there is provided a method for establishing a local area wireless communication, the method comprising: receiving an input for executing an application; when the application is an application for screen sharing, Establishing short-range wireless communication with another device having an ID and sharing an output screen; and establishing a short-range wireless communication with another device when the application is an application for sharing data, And sharing the data with another device when it is identical to a private identification (ID) of another device which is input and distinguished for each device.

In the short-range wireless communication setting method of the present invention, the group ID is an identifier that is distinguished by the manufacturer of each apparatus.

In the short-range wireless communication setting method of the present invention, the dedicated ID is generated in each device after short-range wireless communication with another device is established.

In the local wireless communication setting method of the present invention, the dedicated ID is generated using the group ID.

In the short-range wireless communication setting method of the present invention, the dedicated ID is generated by adding a pseudo random number generated by using a hash function to the group ID.

In the short-range wireless communication setting method of the present invention, the arbitrary random number has a size of 16 bits to 256 bits.

In the short-range wireless communication setting method of the present invention, the dedicated ID is matched with a device ID (Device Identification) capable of identifying each device in a wireless local area network (WLAN) communication system.

In the short range wireless communication setting method of the present invention, the data includes at least one of a file stored in each wireless LAN device and a telephone directory.

According to another aspect of the present invention, there is provided an apparatus for searching for a short range wireless communication unit, an input unit for inputting information, and another device having the same group ID as a preset group ID, And a control unit for establishing short-range wireless communication automatically and sharing the output screen with other apparatuses when short-range wireless communication with other apparatus is established.

When receiving an input for executing an application, the apparatus of the present invention confirms whether the application is an application for screen sharing or a data sharing application, and a connection ID management unit for requesting a password for another device And the control unit receives the password for the other device from the input unit through the connection ID management unit and shares the data with the other device when the ID matches the dedicated ID of the other device.

In the apparatus of the present invention, the connection ID management unit provides an API (Application Programming Interface) for executing an application.

In the apparatus of the present invention, the group ID is an identifier that is distinguished by the manufacturer in which each apparatus is manufactured.

In the apparatus of the present invention, the dedicated ID is generated in each apparatus after short-range wireless communication with other apparatus is established.

In the apparatus of the present invention, the dedicated ID is generated using the group ID.

In the apparatus of the present invention, the dedicated ID is generated by adding a pseudo random number generated by using a hash function to the group ID.

In the apparatus of the present invention, any random number has a size of 16 bits to 256 bits.

In the apparatus of the present invention, the dedicated ID is matched with a device ID (Device Identification) capable of identifying each device in a wireless local area network (WLAN) communication system.

In the apparatus of the present invention, the data includes at least one of a file stored in each wireless LAN device and a telephone directory.

According to an aspect of the present invention, there is provided an apparatus for short-range wireless communication, an input unit for inputting information, and an application for executing an application, And establishes short-range wireless communication with another device having the same group ID as that of the other device, and when the application is an application for sharing data, establishes short-range wireless communication with another device, and a control unit for sharing data with another device when it matches a private identification (ID) of another device which is distinguished for each device.

The apparatus of the present invention further includes a connection ID management unit for confirming whether the application is an application for screen sharing or a data sharing application, and for requesting a password for another apparatus when the application is a data sharing application.

In the apparatus of the present invention, the connection ID management unit provides an API (Application Programming Interface) for executing an application.

In the apparatus of the present invention, the group ID is an identifier that is distinguished by the manufacturer in which each apparatus is manufactured.

In the apparatus of the present invention, the dedicated ID is generated in each apparatus after short-range wireless communication with other apparatus is established.

In the apparatus of the present invention, the dedicated ID is generated using the group ID.

In the apparatus of the present invention, the dedicated ID is generated by adding a pseudo random number generated by using a hash function to the group ID.

In the apparatus of the present invention, any random number has a size of 16 bits to 256 bits.

In the apparatus of the present invention, the dedicated ID is matched with a device ID (Device Identification) capable of identifying each device in a wireless local area network (WLAN) communication system.

In the apparatus of the present invention, the data includes at least one of a file stored in each wireless LAN device and a telephone directory.

According to another aspect of the present invention, there is provided a computer-readable recording medium having recorded thereon a program for causing a computer to function as: means for searching for another apparatus having a group ID equal to a preset group ID; Means for establishing a short-range wireless communication with another device, means for sharing an output screen with another device, password for another device, Means for confirming whether or not it matches the ID (Private Identification), and means for sharing data with other devices.

According to another aspect of the present invention, there is provided a computer-readable recording medium having recorded thereon a program for causing a computer to function as: means for receiving an input for executing an application; And establishing short-range wireless communication with another device having the same group ID as that of the other device and establishing a short-range wireless communication with the other device when the application and the application share an output screen, and means for sharing data with another device when the password is identical to a private ID of another device which is distinguished for each device.

According to the present invention, short-range wireless communication can be set differently according to the degree of security of information that can be shared between devices.

In addition, according to the present invention, there is an effect that, when a screen is shared between devices, a short-range wireless communication is automatically connected and a screen is shared with other devices.

In addition, according to the present invention, when data such as a file or a telephone directory is shared between apparatuses, it is possible to share data with other apparatuses by inputting a password set between apparatuses to which short-range wireless communication is connected.

The effects obtained in the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description .

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
1 is an exemplary diagram of a wireless local area network (WLAN) system.
2 is a diagram illustrating a method for automatically connecting a short range wireless communication using a group ID according to an embodiment of the present invention.
3 is a diagram illustrating a method for automatically connecting a short range wireless communication using a group ID according to an embodiment of the present invention.
4 is a diagram illustrating a method of sharing data between devices using a dedicated ID according to an embodiment of the present invention.
5 is a block diagram illustrating a configuration of a wireless LAN device supporting Wi-Fi direct according to an embodiment of the present invention.
6 is a diagram illustrating a platform of a wireless LAN device according to an embodiment of the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following detailed description, together with the accompanying drawings, is intended to illustrate exemplary embodiments of the invention and is not intended to represent the only embodiments in which the invention may be practiced. The following detailed description includes specific details in order to provide a thorough understanding of the present invention. In the description of the drawings, there is no description of procedures or steps that may obscure the technical gist of the present invention, nor is any description of steps or steps enough to be understood by those skilled in the art.

Throughout the specification, when an element is referred to as "comprising" or " including ", it is meant that the element does not exclude other elements, do. Also, the terms " part, "" module," and " module ", etc. in the specification mean a unit for processing at least one function or operation and may be implemented by hardware or software or a combination of hardware and software have. Also, the terms " a or ", "one "," the ", and the like are synonyms in the context of describing the invention (particularly in the context of the following claims) May be used in a sense including both singular and plural, unless the context clearly dictates otherwise.

The specific terms used in the embodiments of the present invention are provided to facilitate understanding of the present invention, and the use of such specific terms may be changed into other forms without departing from the technical idea of the present invention.

1. Wireless LAN ( WLAN : Wireless Local Area Network ) system

1. 1. Wireless LAN System General

1 is an exemplary diagram of a wireless local area network (WLAN) system.

The WLAN system includes one or more Basic Service Sets (BSSs). A basic service set is a set of stations (STAs) capable of successfully establishing synchronization and communicating with each other, and is not a concept indicating a specific area.

The basic service set can be divided into an infrastructure-based basic service set (Infrastructure BSS) and an independent basic service set (IBSS: Independent BSS).

1 (a) illustrates an infrastructure-based WLAN system. The infrastructure-based WLAN system includes a plurality of basic service sets including a plurality of non-AP STAs, an access point (AP), and a distribution system DS : Distribution system). In the infrastructure basic service set, the access point manages the non-access point stations of the basic service set.

Figure 1 (b) illustrates an independent set of basic services operating in ad-hoc mode. Since the independent base service set does not include an access point, there is no centralized management entity in the center. That is, in the independent basic service set, terminals are managed in a distributed manner and can not directly communicate between terminals included in different independent basic service sets. A plurality of independent basic service sets can be configured in such a way as to sufficiently maintain the distance between the independent basic service sets or to use different carrier frequencies. In the independent basic service set, all the stations can be mobile stations and a connection to the distribution system is not allowed, resulting in a self-contained network.

A station is an arbitrary functional medium including Medium Access Control (MAC) conforming to the IEEE 802.11 standard and Physical Layer interface for a wireless medium. The station includes an access point (AP) Point station (Non-AP STA).

A station for wireless communication includes a processor and a transceiver, and includes a user interface, a display means, and the like. A processor is a functional unit designed to generate a frame for transmission over a wireless network or to process a frame received over a wireless network, and performs various functions for controlling the station. The transceiver is a unit that is functionally connected to the processor and is designed to transmit and receive frames over the wireless network for the station.

A non-access point station is a device operated by a user, and sometimes referred to as a non-access point station. A non-access point station may be a terminal, a wireless transmit / receive unit (WTRU), a user equipment (UE), a mobile station (MS), a mobile terminal, May also be referred to as another name, such as a Mobile Subscriber Unit.

An access point is a functional entity that provides a connection to a distribution system via a wireless medium to its associated non-access point station. Many non-access point stations have a connection mechanism as a wireless medium and are wirelessly connected to the access point. Communication between non-access points in an infrastructure basic service set, including an access point, is typically done via an access point, but in the case of a direct link, It is also possible. The access point may be referred to as a centralized controller, a base station (BS), a node-B, a base transceiver system (BTS), a site controller, or the like.

A plurality of infrastructure basic service sets are interconnected through a distribution system. An extended network by a distribution system is called an extended service set (ESS). Within the same set of extended services, the terminals can move from one basic service set to another with a seamless communication. This extended service set has an extended service set identifier (ESSID) which is its own unique identifier.

A distribution system is a mechanism for one access point to communicate with another access point, and may extend wireless coverage by connecting a plurality of basic service sets using an access point to form a single network. Accordingly, the access point may transmit data for non-access point stations coupled to the base service set it manages, or may transmit data when one of the non-access point stations moves to another base service set And can transmit data to an external network such as a wired network. Such a distribution system does not necessarily have to be a network, and there is no restriction as to the form of distribution if it can provide a predetermined distribution service defined in IEEE 802.11. For example, the distribution system may be a wireless network, such as a mesh network, or may be a physical structure that connects the access points to each other.

A station to which the present invention can be applied includes a short-range communication module for performing short-range communication with another station having a direct link, and a Wi-Fi direct module capable of performing a Wi- Module is assumed to be provided. Hereinafter, for convenience of explanation, a device capable of receiving specific information or transmitting specific information via the Wi-Fi direct module is referred to as a "wireless LAN device ".

1. 2. Wi-Fi direct ( WiFi Direct )

The WiFi Alliance (WFA) has proposed a new standard to support Peer to Peer (P2P) between wireless LAN devices. This new standard technology is called Wi-Fi Direct.

Wi-Fi Direct technology is similar to Ad-hoc but it is different from Ad-hoc which supports connection between wireless LAN devices.

The ad-hoc method is used only for simple connection between wireless LAN devices at a short distance, and the speed is limited to 11 Mbps. Wi-Fi Direct supports not only the current IEEE 802.11n speed but also wireless security technologies such as WPA2 and WPS, which are not supported by ad-hoc mode.

As such, Wi-Fi Direct is a kind of soft-AP protocol that goes beyond ad-hoc. Wi-Fi direct makes connectivity between wireless LAN devices more flexible like access point functions. WiFiDirect can send and receive data between various wireless LAN devices such as notebooks, smart phones, cameras, printers, etc., without any special network configuration. The concepts of Bluetooth and technology are similar in that devices can be directly connected and connected without going through an access point.

Wi-Fi Direct can communicate over a relatively long distance (several meters to hundreds of meters) while Wi-Fi Direct supports Bluetooth only. Speed is incomparable and Wi-Fi direct is fast. The IEEE 802.11n system theoretically reaches 300 Mbps (actual 150 Mbps level), but Bluetooth is the maximum at 3 Mbps. Bluetooth is mainly used for audio transmission or small-size data wireless transmission because of its low power consumption, and Wi-Fi direct transmits relatively diverse data such as the Internet and is easy to use for complicated protocols.

Until now, Wi-Fi direct technology is a one-to-one connection between wireless LAN devices, and there is a need for users to search for and connect to other wireless LAN devices for manually making a Wi-Fi direct connection. In particular, Wi-Fi display (WiFi-Display), which is a function to share the screen of a specific wireless LAN device with other wireless LAN devices by applying Wi-Fi Direct, collectively searches for other wireless LAN devices And the need to manually set the connection.

2. Short-range wireless communication connection method

Hereinafter, a method for connecting short-range wireless communication between wireless LAN devices is proposed. It is possible to establish short-range communication between the wireless LAN devices by using any one of the following methods.

2. Group 1 ID ( Group Identification Screen sharing using

2 is a diagram illustrating a method for automatically connecting a short range wireless communication using a group ID according to an embodiment of the present invention.

Referring to FIG. 2, the first wireless LAN device searches for a nearby device in order to start short-range wireless communication with a peripheral device (e.g., a second wireless LAN device) (S201). Specifically, when the first wireless LAN device receives an input for activating the wireless LAN from the user and an input for setting the WiFi direct mode of the wireless LAN, And broadcasts an inquiry message using a preset group ID (Group Identification).

The group ID is an identifier assigned when the wireless LAN device is manufactured so that the wireless LAN device can be distinguished according to the maker of the wireless LAN device. For example, an ID (for example, 'yyy') for 'A' is assigned to a TV, a mobile terminal, a household appliance, and the like manufactured by a particular 'A'

A neighboring device (for example, a second wireless LAN device) existing in a sending radius of the inquiry message of the first wireless LAN device and in a ready mode for connection of the short-range wireless communication with another wireless LAN device receives the inquiry message An inquiry scan state is entered to receive the inquiry message broadcast from the first wireless LAN device. Here, the ready mode for connection of the short-range wireless communication means that the wireless LAN is activated by receiving the input from the user and the Wi-Fi direct mode of the wireless LAN is established.

Upon receiving the inquiry message, the second wireless LAN device transmits an inquiry response message using the group ID to the first wireless LAN device (S203).

The first wireless LAN device recognizes the second wireless LAN device based on the transmitted inquiry response message and determines whether the group ID of the recognized second wireless LAN device matches the group ID of itself (the first wireless LAN device) (S205).

Upon confirming that the group ID of the second wireless LAN device matches the group ID of the first wireless LAN device (first wireless LAN device), the first wireless LAN device transmits a connection request message to initiate the short-distance wireless communication with the second wireless LAN device (S207).

The second WLAN device, which exists within the transmission radius of the first WLAN device's connection request message and receives the connection request message from the first WLAN device, transmits a connection response Message (S209).

The first wireless LAN device and the second wireless LAN device establish a short-range wireless communication between the first wireless LAN device and the second wireless LAN device by transmitting the connection response message, (S211). Here, the sharing of the screen means that an image or sound output from the specific wireless LAN device is output from another wireless LAN device in which short-range wireless communication is established. That is, as described above, since the connection of the short-range wireless communication between the wireless LAN devices is automatically established using the group ID set in advance, it is preferable that only the function of sharing the simple screen is provided and the file or telephone directory is not shared.

Meanwhile, short-range wireless communication between the first wireless LAN device and the second wireless LAN device can be established by transmitting the connection request message from the first wireless LAN device. In this case, step S207 may be omitted.

3 is a diagram illustrating a method for automatically connecting a short range wireless communication using a group ID according to an embodiment of the present invention.

Referring to FIG. 3, the first wireless LAN device searches for nearby devices to start short-range wireless communication with a peripheral device (e.g., a second wireless LAN device) (S301). Specifically, when the first wireless LAN device receives an input for activating the wireless LAN from the user and an input for setting the WiFi direct mode of the wireless LAN, And broadcasts an inquiry message using a preset group ID (Group Identification).

A neighboring device (for example, a second wireless LAN device) existing in a sending radius of the inquiry message of the first wireless LAN device and in a ready mode for connection of the short-range wireless communication with another wireless LAN device receives the inquiry message An inquiry scan state is entered to receive the inquiry message broadcast from the first wireless LAN device. Here, the ready mode for connection of the short-range wireless communication means that the wireless LAN is activated by receiving the input from the user and the Wi-Fi direct mode of the wireless LAN is established.

Upon receipt of the inquiry message, the second wireless LAN device recognizes the first wireless LAN device based on the inquiry message, and if the group ID of the first wireless LAN device recognized matches the group ID of the second wireless LAN device itself (S303).

Upon confirming that the group ID of the first wireless LAN device matches the group ID of the first wireless LAN device (second wireless LAN device), the second wireless LAN device transmits a connection request message to start the short-range wireless communication with the first wireless LAN device (S305).

The first wireless LAN device, which is present within the transmission radius of the connection request message of the second wireless LAN device and receives the connection request message from the second wireless LAN device, transmits a connection response Message (S307).

The first wireless LAN device establishes the short-range wireless communication between the first wireless LAN device and the second wireless LAN device by transmitting the connection response message, and the first wireless LAN device and the second wireless LAN device transmit only the screen (S309).

Meanwhile, short-range wireless communication between the first wireless LAN device and the second wireless LAN device can be established by transmitting the connection request message from the second wireless LAN device. In this case, step S307 may be omitted.

According to the embodiments of FIGS. 2 and 3, the first wireless LAN device and the second wireless LAN device in which the short-range wireless communication is established can share only a screen output from each device. Here, the sharing of the screen means that an image or sound output from the specific wireless LAN device is output from another wireless LAN device in which short-range wireless communication is established. That is, in the above-described methods, since the connection of the short-range wireless communication between the wireless LAN devices is automatically established using the preset group ID, it is preferable that only the function of sharing the simple screen is provided and the file or the telephone directory is not shared.

2. 2. Dedicated ID ( Private Identification Share data using

The short-range wireless communication connection method using the private ID (described below) assumes that the short-range wireless communication using the group ID described in (2.1) is automatically connected.

4 is a diagram illustrating a method of sharing data between devices using a dedicated ID according to an embodiment of the present invention.

Referring to FIG. 4, the first wireless LAN device and the second wireless LAN device, which have established the short-range wireless communication using the group ID, generate a dedicated ID using the group ID (S401).

Here, the dedicated ID is an identifier that is automatically generated when a local area wireless communication is established through the group ID so that the wireless LAN device having the same group ID can be distinguished. At this time, each wireless LAN device generates a dedicated ID by using a hash function so that the dedicated ID is not the same between the first wireless LAN device and the second wireless LAN device in which the short-range wireless communication is established. For example, a dedicated ID of a wireless LAN device manufactured by 'A' may be a pseudo-random number generated by using a hash function in 'yyy' which is a group ID capable of distinguishing 'A' And adds the decimal share ID. That is, it satisfies a dedicated ID = group ID + hexadecimal shared ID. For example, the first wireless LAN device may have 'yyy0x00000ab' and the second wireless LAN device may have 'yyy0x00000bc'. At this time, the hexadecimal shared ID may have a size of 16 bits to 256 bits according to the degree of encryption. The dedicated ID can be matched with a device ID for identifying the wireless LAN device in the course of establishing the short-range wireless communication. That is, each wireless LAN device can distinguish the other wireless LAN devices by using a dedicated ID. Then, the first wireless LAN device and the second wireless LAN device can output the dedicated ID generated by the method described above so that the user can recognize the dedicated ID corresponding to each wireless LAN device.

When the first wireless LAN device receives an execution of an application for sharing data with another wireless LAN device from a user (S403), the first wireless LAN device outputs a message window requesting a dedicated ID of another wireless LAN device to share data, And receives a password for another wireless LAN device to which data is to be shared (S405). In this embodiment, the first wireless LAN device receives a password for the second wireless LAN device.

In step S407, the first wireless LAN device checks whether the password for the input wireless LAN device matches the dedicated ID of the second wireless LAN device. At this time, it is possible to check whether or not the password for the second wireless LAN device matches the device ID that matches the dedicated ID of the second wireless LAN device.

The first wireless LAN device, which confirms that the received private ID matches the private ID of the second wireless LAN device, executes an application for sharing data with the second wireless LAN device (S413). Next, in step S411, the first wireless LAN device and the second wireless LAN device in which the short-range wireless communication is established using the group ID may share a file or a phone book stored in each device in addition to screen sharing.

3. Devices in which the present invention may be implemented

5 is a block diagram illustrating a configuration of a wireless LAN device supporting Wi-Fi direct according to an embodiment of the present invention.

The wireless LAN device may include a short range communication unit 510, a processor 520, a memory 530, an input unit 540, and an output unit 550. The wireless LAN device referred to herein includes at least one of the components shown in FIG. 5, but is not limited thereto.

The short-range communication unit 510 means a module for short-range communication with an external wireless LAN device. In particular, the short range communication unit 510 of the present invention includes a Wi-Fi direct module for supporting a WiFi Direct direct technology as described above. Bluetooth, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used in addition to Wi-Fi direct as a short range communication technology.

The storage unit 530 stores data and programs necessary for the operation of the wireless LAN device, and basically stores an operating program and an application program to be executed by the wireless LAN device. Particularly, in the present invention, the storage unit 530 serves as a repository for storing the service profile. The storage unit 530 may be implemented by various storage means. For example, the storage unit 530 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD A random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM) , A magnetic memory, a magnetic disk, or an optical disk. The storage unit 530 may be located inside or outside the control unit 520 and may be connected to the control unit 520 by various well-known means.

The input unit 540 generates input data for controlling the operation of the wireless LAN device by a user. The input unit 540 may be implemented by a variety of input means. For example, the input unit 540 may include at least one of a key pad, a dome switch, a touch pad (static / static), a jog wheel, a jog switch, and a voice input unit.

The output unit 550 outputs the operation state and the operation result of the wireless LAN device to the user under the control of the control unit 520. [ The output unit 550 may be implemented by various display means. For example, the output unit 550 may be an LCD (Liquid Crystal Display), a TFT-LCD (Thin Film Transistor-Liquid Crystal Display), an LED (Light Emitting Diodes), an OLED (Organic Light Emitting Diodes) Organic Light Emitting Diodes (OLEDs), flexible displays, and 3D displays.

In the case where the output unit 550 and the sensor for sensing the touch operation have a mutual layer structure (touch screen), the output unit 550 can be used as an input device in addition to the output device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the output portion 550 or a capacitance generated in a specific portion of the output portion 550 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch. If there is a touch input to the touch sensor, the corresponding signal (s) is transmitted to the control unit 520. [ Thus, the control unit 520 can know which region of the output unit 550 is touched or the like.

The control unit 520 generally controls the operations of the short range communication unit 510, the storage unit 530, the input unit 540 and the output unit 550 and performs the functions, processes and / or methods proposed in FIGS. Lt; / RTI >

6 is a diagram illustrating a platform of a wireless LAN device according to an embodiment of the present invention.

Referring to FIG. 6, the wireless LAN device controls an operation of an application by a connection ID manager in a state in which an operating system (not shown) of the wireless LAN device is driven.

The wireless LAN device can directly operate the connection ID management function module when the wireless LAN communication module is activated, and can also operate the connection ID management function module when the wireless LAN is activated and the WiFi direct mode is set.

The connection ID management function unit driven by the wireless LAN device provides an application programming interface (API) to the application and controls the security of the application developed through the API provided by the connection ID management function unit.

Specifically, in the case of the screen sharing application developed through the API provided by the connection ID management function unit, it is possible to perform the short-range wireless communication automatically when establishing short-range wireless communication with another wireless LAN device through a preset group ID. That is, the wireless LAN device can share a screen output through a screen sharing application without receiving a password from another wireless LAN device connected to the short-range wireless communication.

On the other hand, in the case of an application sharing data such as a file or a phone number developed through the API provided by the connection ID management function unit, it is possible to execute the application only by inputting a dedicated ID generated in the wireless LAN device, that is, a password. That is, even if short-distance wireless communication is automatically established with another wireless LAN device through a preset group ID, the wireless LAN device receives a password from the user and confirms that it matches the dedicated ID of another wireless LAN device, Data can be shared through a data sharing application with another wireless LAN device connected to the wireless communication.

The embodiments described above are those in which the elements and features of the present invention are combined in a predetermined form. Each component or feature shall be considered optional unless otherwise expressly stated. Each component or feature may be implemented in a form that is not combined with other components or features. It is also possible to construct embodiments of the present invention by combining some of the elements and / or features. The order of the operations described in the embodiments of the present invention may be changed. Some configurations or features of certain embodiments may be included in other embodiments, or may be replaced with corresponding configurations or features of other embodiments. It is clear that the claims that are not expressly cited in the claims may be combined to form an embodiment or be included in a new claim by an amendment after the application.

Embodiments in accordance with the present invention may be implemented by various means, for example, hardware, firmware, software, or a combination thereof. In the case of hardware implementation, an embodiment of the present invention may include one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs) field programmable gate arrays, processors, controllers, microcontrollers, microprocessors, and the like.

In the case of an implementation by firmware or software, an embodiment of the present invention may be implemented in the form of a module, a procedure, a function, or the like which performs the functions or operations described above. The software code can be stored in a memory unit and driven by the processor. The memory unit is located inside or outside the processor, and can exchange data with the processor by various known means.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit of the invention. Accordingly, the foregoing detailed description is to be considered in all respects illustrative and not restrictive. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Although the method for establishing the short-range wireless communication between the apparatuses of the present invention has been described with reference to the example applied to the IEEE 802.11 wireless communication system, it can be applied to various wireless communication systems other than the IEEE 802.11 wireless communication system.

510: Local communication section 520:
530: storage unit 540: input unit
550: Output section

Claims (40)

Searching for another device having the same group ID as the preset group ID;
Establishing short-range wireless communication automatically using the other device and the group ID;
Generating a private identification (ID) based on the group ID when short-distance wireless communication with the other apparatus is established;
Receiving a password for the other device, checking whether the password matches the private ID of the other device, and checking whether the private ID matches the device ID of the other device; And
And sharing the data with the other device when the dedicated ID and the device ID coincide with each other
How to set up local area wireless communication. The method according to claim 1,
Wherein the group ID is an identifier that is distinguished by the manufacturer of each device. The method according to claim 1,
And the data shared with the other device is output. delete The method according to claim 1,
Wherein the dedicated ID is generated in each device after the wireless LAN communication with the other device is established. delete The method according to claim 1,
Wherein the dedicated ID is generated by adding a pseudo random number generated by using a hash function to the group ID. 8. The method of claim 7,
Wherein the random number has a size of 16 bits to 256 bits. The method according to claim 1,
Wherein the dedicated ID is matched with a device ID that can identify each device in a wireless local area network (WLAN) communication system. The method according to claim 1,
Wherein the data includes at least one of a file and a telephone directory stored in each wireless LAN device. Receiving an input for execution of an application;
When the application is an application for screen sharing, establishing short-range wireless communication with another device having the same group ID as a preset group ID and sharing a screen to be output; And
The method comprising the steps of: establishing a short-range wireless communication with the other device when the application is an application for sharing data; receiving a password for the other device; receiving a private ID of the other device, And confirming whether the dedicated ID matches the device ID of the other device; And sharing data with the other device when the dedicated ID and the device ID coincide with each other. A short range wireless communication unit;
An input unit for inputting information;
A controller for controlling operations of the short range wireless communication unit and the input unit;
And a connection ID management unit for receiving an input for executing an application and confirming that the application is an application for sharing a screen or a data sharing application and requesting a password for another device when the application is a data sharing application,
The control unit
The mobile terminal searches for another device having the same group ID as the preset group ID and establishes short-range wireless communication automatically using the other device and the group ID, and when short-range wireless communication with the other device is established,
A private ID is generated in each device based on the group ID,
A password for the other device is received and it is checked whether the password matches the private ID of the other device and whether the device ID of the other device is identical to the private ID.
If the dedicated ID and the device ID coincide with each other, share the data with the other device,
And the output screen is shared with the other device. delete 13. The method of claim 12,
And the connection ID management unit provides an application programming interface (API) for executing the application. 13. The method of claim 12,
Wherein the group ID is an identifier that is distinguished by the manufacturer of each apparatus. delete delete 13. The method of claim 12,
Wherein the dedicated ID is generated by adding a pseudo random number generated by using a hash function to the group ID. 19. The method of claim 18,
Wherein the random number has a size of 16 bits to 256 bits. 13. The method of claim 12,
Wherein the dedicated ID is matched with a device identification (ID) capable of identifying each device in a wireless local area network (WLAN) communication system. 13. The method of claim 12,
Wherein the data includes at least one of a file and a telephone directory stored in each wireless LAN device. A short range wireless communication unit;
An input unit for inputting information;
A connection ID management unit for verifying that the application is an application for screen sharing or a data sharing application and requesting a password for another device when the application is a data sharing application; And
When receiving an input for executing an application, the application establishes a short-range wireless communication with another device having the same group ID as a preset group ID, If the application is an application for sharing data, after establishing a short-range wireless communication with the other device, the device receives a password for the other device and checks whether the password matches the dedicated ID of the other device , It is checked whether or not the dedicated ID matches the device ID of the other device, and when the dedicated ID and the device ID coincide with each other,
And a control unit.
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