KR20140042340A - Method for processing connection between devies and apparatus for the same - Google Patents

Abstract

A method for processing a connection between devices according to the present invention comprises the steps of: exploring to search for a device included in a network area and receiving, from at least one searched device, first device list information containing a list of devices connected to the searched device; confirming a list of devices included in the network area by reflecting the first device list information; confirming second device list information on devices included in the network area; storing the second list information; and providing the second device list information for a device having transmitted a response message so that the device can reflect the second device information in the first device list information. [Reference numerals] (AA) First node; (BB) Second node-1; (CC) Second node-2; (S201) Broadcasting exploring message; (S202) Confirm first device list information; (S203) Transmit a response message; (S204) Confirm second device list information; (S205) Store the second device list information; (S206) Provide the second device list inforamtion; (S207) Update the first device list information by reflecting the second device list information

Description

METHOD FOR PROCESSING CONNECTION BETWEEN DEVIES AND APPARATUS FOR THE SAME}

The present invention relates to a method and apparatus for performing a connection between communication devices, and more particularly, to a method and apparatus for performing discovery between communication devices.

Recently, Wi-Fi Direct has been defined to support connectivity between devices more easily and conveniently than existing Wi-Fi technologies.

Wi-Fi Direct (or Wi-Fi P2P) is a technology that enables direct connection between devices via wireless. This is an extended technology based on the Wi-Fi standard, and was designed to compensate for the fact that in the conventional Wi-Fi, terminals can communicate only through an access point (AP), so that direct connection between terminals is impossible without the AP.

Wi-Fi Direct technology consists of a Group Owner (GO) terminal acting as an Access Point and a Group Client (GC) acting as a station when connecting peer to peer between Wi-Fi terminals. In the WFD technology, a source terminal providing streaming data and a sink terminal receiving streaming data are provided. In an environment in which devices are connected by WFD technology, if there is only one sink terminal, the source terminal may be GO or GC. However, when the sync terminal is divided into a voice processing terminal and an image processing terminal, it is prescribed that the source terminal must be GO. However, when the mobile terminal operates as a GO while being a source terminal, a lot of power consumption problems occur in the mobile terminal having a relatively small power source.

In order to solve this problem, Wi-Fi Direct technology uses Opportunistic Power Save method or Notice of Absence (NoA) method, and Group Client (GC) or Group Owner (GO) uses idle period to reduce power consumption. It is configured to reduce.

Referring to FIG. 1A, the Opportunistic Power Save method is a method for implementing additional power saving according to the situation in addition to the basic case, and a section in which the Group Owner (GO) and the Group Client (GC) are activated and communicating in the wireless area, That is, in the CT Window (Client Traffic Window) section, the Group Owner (GO) can notify the peripheral devices that they will enter the Opportunistic Power Save by setting the OppPS bit of the CT Window and the OppPS parameter field of the Notice of Absence attribute to 1. have.

When the CT Window section is over and there is no Group Client (GC) that needs data transmission anymore, the Group Owner (GO) enters the Power Save state until the next Target Beacon Transmission Time (TBTT). If a queued broadcast / multicast frame remains immediately after the Delivery Traffic Information Map (DTIM), the Group Owner (GO) must enter the Power Save state after transmitting all of them even if the frames exceed the CT Window. can do. If transmission of stored broadcast / multicast frames is interrupted by the NoA Absence Period, transmission of the frames is resumed after the absence period ends.

Group owner can use Opportunistic Power Save when connected clients use P2P PS Procedure or P2P WMM-PS, and should cancel Opportunistic Power Save upon receiving P2P Presence Request. Also, if there is a Presence Request received from more than one Client, the Opportunistic Power Save should not be entered while the request is valid.

Meanwhile, referring to FIG. 1B, the Group Owner transmits a Notice of Absence attribute in a beacon and a probe response to inform clients of their Notice of Absence schedule.

First, the first absence period is initiated when the lower 4 bytes of the Timm Synchronization Function (TSF) timer value of the Group Owner coincides with the Start Time value of the Notice of Absence attribute. In addition, the group owner maintains the power save state (absent) for the time specified in the maximum Notice of Absence attribute. It operates so that the group owner wakes up in the period in which the absence period ends.

However, when the Group Client (GC) or Group Owner (GO) uses the idle period in the Wi-Fi Direct technology, the device operating as the Group Client (GC) or Group Owner (GO) is initially connected, in particular, The other device may be driven to the idle section at the timing of performing the discovery process. This may result in a problem that the device is not discovered even though the other devices are included in the network. In order to solve this problem, a method of performing a discovery process by setting a relatively longer time than the idle period may be used, but such a method may be set so that the time of the initial connection process, in particular, the discovery process is relatively long. The problem is that the connection is delayed.

SUMMARY OF THE INVENTION The present invention has been made in view of the foregoing, and an object thereof is to provide an apparatus and a method capable of realizing a device search included in a network more quickly and efficiently.

According to an aspect of the present invention, a method for performing a connection between devices includes: searching for a device included in a network area, and searching for a device connected to the discovered at least one device from at least one discovered device. Receiving first device list information including a list, checking the list of devices included in the network area by reflecting the first device list information, and checking the list of devices included in the network area. And checking the second device list information and providing the second device list information.

An apparatus for performing connection between devices according to another aspect of the present invention includes a data transceiver for transmitting and receiving data to and from a neighboring device, and searching for a device included in a network area, from at least one discovered device. Receiving first device list information including a list of devices connected to the searched at least one device, reflecting the first device list information, and confirming a list of devices included in the network area Controlling the operation of performing the operation, checking the second device list information of the device included in the network area, storing the second device list information, and providing the second device list information. It includes a control unit.

According to the present invention, while maintaining the 802.11 active scan scheme, it is possible to improve the speed degradation and usability problems of the discovery process of the peripheral device.

In addition, the method and apparatus according to the present invention may operate while maintaining compatibility with legacy P2P standards.

In addition, the discovery of peripheral devices can be realized more accurately and quickly, while minimizing the power consumption of the device.

1A and 1B are signal timing diagrams illustrating an Opportunistic Power Save method and a Notice of Absence (NoA) method, respectively, according to the prior art;
2 is a signal flow diagram illustrating a procedure of a neighbor node identification method according to an embodiment of the present invention;
3 is an exemplary diagram of a response message used in a neighbor node identification method according to an embodiment of the present invention;
4 is a diagram illustrating a positional relationship between a first node and a second node illustrated in a neighbor node identification method according to an embodiment of the present invention;
5 is a flowchart illustrating a detailed operation of a first node of FIG. 2;
6 is a flowchart illustrating a detailed operation of a first node of FIG. 2;
7 is a block diagram showing a configuration of a device to which a neighbor node identification method according to an embodiment of the present invention is applied;
8 is a schematic block diagram illustrating a mobile terminal to which a communication method according to an embodiment of the present invention is applied.

Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the contents described in the accompanying drawings. However, the present invention is not limited to or limited by the exemplary embodiments. Like reference numerals in the drawings denote members performing substantially the same function.

2 is a signal flow diagram illustrating a procedure of a neighbor node identification method according to an embodiment of the present invention. Referring to FIG. 2, first, a first node performs an operation of searching for a second node for connection with at least one second node. That is, the first node broadcasts a discovery message for searching for the second node to the wireless network area (S201).

On the other hand, the second node is configured to store the first device list information that collects and lists the information about the device that is connected with itself. In this case, when the second node receives a discovery message transmitted from the first node in a wireless network capable of communicating with the first node wirelessly, the discovery node identifies the discovery message and checks first device list information. (S202). When the second node transmits the response message to the discovery message, the second node includes the first device list information in the response message and transmits the response message (S203).

Next, in S204, the second device list information is checked by checking the Elements ID, Length, OUI, OUI Type, P2P Subelements field, etc. included in the response message. Specifically, the first node checks the Elements ID, Length, OUI, OUI Type field, etc. included in the response message (see FIG. 3), and basically, information (eg, address, identifier, type) about the second node. Etc.), and the second node is included in the second device list information. The P2P Subelements field included in the response message is checked to determine whether the first device list information exists in the response message. When the first device list information exists in the response message, the first device list information included in the P2P subelements is checked. The first device list information includes a vendor name, a subelement ID, and a data field, and the data field includes the number of devices included in the first device list and detailed information about each device. In addition, the detailed information about the device may include a device address, device type, congif method, device name, device operating mode (eg, Group Owner Mode, Client Mode, etc.), the first node The vendor name, the subelement ID, and the information included in the data field are checked to extract a device included in the first device list information and scan the extracted device. That is, the probe request message is transmitted to the extracted device, and only the device transmitting the response message to the probe request message is identified and included in the second device list information.

Preferably, the detailed information about the device may include operating channel information indicating a frequency channel used by the device, wherein the first node checks the operating channel information in the device scanning process and checks the operating channel information. By scanning only for devices that correspond to the same frequency coverage, you can quickly reconfirm the presence of the device by scanning only for channels that correspond to the same frequency coverage as the first node, without the need to rescan the entire channel unnecessarily. have.

Furthermore, as illustrated in FIG. 4, since the first node and the second node may exist at different positions, the area 41 covered by the first node and the area 42 covered by the second node may be different from each other. In addition, the second node may reflect device list information including the device included in the area 43 covered by the third node. Accordingly, the first device list information received by the first node from the second node may include a plurality of devices (ie, external nodes) included in an area in which the first node cannot communicate. Therefore, the detailed information about the device may include location information indicating the location of the device, and the first node only checks the location information and only the devices existing in the area 41 covered by the first node. You can choose.

In this way, the first node uses the first device list information and information on the device transmitting the response message, but effectively reflects the frequency channel, location information, etc. used by the first node. The second device list information including the device capable of communicating with the first node is configured. .

Next, in step 205, the checked second device list information is stored in a storage medium such as a memory in preparation for receiving a discovery message from a neighboring device. In operation S206, the first node provides the second device list information to the second node. Here, the second device list information may be provided to a second node that has transmitted the first device list information. Further, the second device list information may be provided to a device included in the second device list information as well as a second node that transmits the first device list information.

The second node updates the second device list information by reflecting the device list information stored therein (S207).

In the neighbor node identification method according to an embodiment of the present invention, the process of searching for a neighbor node is illustrated in an active mode, but the present invention is not limited thereto and is intended to be achieved through the present invention. It may be sufficient to include a configuration for identifying devices included in the network more quickly and efficiently by checking device list information managed and transmitted from neighboring nodes. In consideration of this, it is also possible that the process of searching for neighboring nodes operates in a passive mode. For example, a first node waits for beacon reception in a supporting frequency channel, and a neighboring second node transmits a device list information managed by itself to the beacon to transmit the beacon, so that the first node is included in the beacon. It may be configured to confirm the list information.

FIG. 5 is a flowchart illustrating a detailed operation of the first node of FIG. 2. Referring to FIG. 5, a first node first searches for neighboring second nodes. That is, broadcast a discovery message for searching for a neighboring second node (S501), wait for reception of a response message from the neighboring second node, and if a response message is received, the process proceeds to step S503 (S502).

Next, in step S503, the elements ID, Length, OUI, OUI Type, etc. included in the response message are checked to basically identify information (eg, address, identifier, type, etc.) about the second node. The P2P Subelements field included in the response message is checked to determine whether first device list information exists in the response message (S504).

If the first device list information exists in the response message, the process proceeds to step S505 to check the first device list information included in the response message. The first device list information includes a vendor name, a subelement ID, and a data field, and the data field includes the number of devices included in the device list and detailed information about each device. Further, the detailed information about the device may include a device address, a device type, a congif method, a device name, a device operation mode (eg, Group Owner Mode, Client Mode, etc.), and the first node may have a vendor name. (Vendor Name), Subelement ID, and information included in the data field are checked.

Next, the first node extracts a device included in the first device list information and scans the extracted device (S506). That is, the probe request message is transmitted to the extracted device, and only the device transmitting the response message to the probe request message is detected.

Meanwhile, the detailed information about the device preferably includes operating channel information indicating a frequency channel used by the device. In the process of extracting and scanning a device included in first device list information, the operating channel information Proceed with consideration. That is, the first node may check only the operation channel information to extract only a device corresponding to the same frequency coverage as the first node, and scan only the extracted device. As a result, the existence of the device can be quickly confirmed by performing a scan only on a channel corresponding to the same frequency coverage as that of the first node without having to scan the entire channel unnecessarily.

Furthermore, the detailed information about the device may include location information indicating the location of the device, and in the process of extracting and scanning a device included in the first device list information, scanning is performed by reflecting the location information. You can proceed. That is, the first node may check only the location information, extract only devices located in an area covered by the first node, and scan only the extracted devices. As a result, since the device is not scanned in a region other than the region covered by the first node, the device can be reconfirmed more quickly and effectively.

Next, in step S507, the first node configures second device list information by reflecting the device detected in step S503 or S506.

On the other hand, if the first device list information does not exist in the response message, the process proceeds to step S508 to include the second device for transmitting the response message in the second device list information to configure the second device list information.

In the second device list information, since the first node may receive response messages from the plurality of second nodes, steps S501 to S508 may be repeatedly performed until the discovery process is completed, and discovery may be performed. When the process ends, the process proceeds to step S510 (S509).

Since the second device list information includes information on the second node identified in step S503 or additionally includes only the devices identified through scanning among devices included in the first device list information, the first device list information. Will include different devices. Accordingly, the first node provides the second device list information to the second node so that the second device list information can be shared with the second node (S510).

FIG. 6 is a flowchart illustrating a detailed operation of the first node of FIG. 2. Referring to FIG. 6, the second node receives a discovery message from the first node (S601).

Next, in step S602, the second node checks whether the first device list information is stored in advance.

If the first device list information is stored in advance, check the number of devices included in the device list, the device address, the device type, the congif method, the device name, and the device operation mode (eg, Group Owner Mode, Client Mode, etc.). (S603).

Next, the second node configures and transmits a response message by reflecting the information identified in steps S602 and S603 (S604). Specifically, the second node basically inserts information (eg, address, identifier, type, etc.) about the second node into an Elements ID, Length, OUI, OUI Type field, and the like, and determines whether P1P exists. Insert it into the Subelements field. When the first device list information exists in the response message, the first device list information identified in step S603 is inserted into the P2P Subelements field. That is, a vendor name, a subelement ID, and a data field are inserted, and the number of devices included in the device list in the data field, device address, device type, congif method, device name, Insert detailed information including device operating mode (eg, Group Owner Mode, Client Mode, etc.).

In addition, it is preferable to further insert operating channel information indicating a frequency channel used by the device in the detailed information so that the first node extracts only a device corresponding to the same frequency coverage as the first node to perform scanning.

Furthermore, location information indicating the location of the device may be further inserted into the detailed information so that the first node may perform scanning by reflecting the location of the device.

On the other hand, when the second node receives the second device list information identified by the first node (S606-Yes), the second node updates the device included in the second device list information to reflect the first device list ( S607). As a result, when the second node receives a discovery message from another first node in the future, the second node may provide the first node with the updated first device list information, thereby providing more reliable device list information. .

FIG. 7 is a block diagram illustrating a configuration of a device to which a neighbor node identification method according to an embodiment of the present invention is applied. Referring to FIG. 7, a device 700 according to an embodiment of the present invention includes a controller 701, a data transceiver 702, an antenna 703, and a memory 704.

The controller 701 may provide a WLAN (eg, IEEE 802.11 related protocol) function and may communicate with the data transceiver 702 and the memory 704.

The data transmission / reception unit 702 is coupled to the antenna 703 to transmit data provided from the control unit 701 to the outside or to provide data received from the outside to the control unit 701.

The control unit 701 may be included in a microprocessor, configured by individual integrated circuits, communicate and operate in cooperation with the processor, or include at least one integrated circuit, processors, ASICs, FPGAs, a combination thereof, or It may be variously implemented by a combination of similar devices including functionality.

The controller 701 may perform a connection management function for managing a connection with a device (eg, a terminal or a network controller) connected to the outside, and in particular, a device list management function related to processing of a neighbor node checking method according to the present invention. Do this.

In detail, the controller 701 broadcasts a discovery message for searching for a neighboring second node, receives a response message from the neighboring second node, and includes an Elements ID, Length, OUI, and OUI included in the response message. By checking the type field and the like, basic information about the second node (eg, address, identifier, type, etc.) is checked. The P2P Subelements field included in the response message is checked to determine whether the first device list information exists in the response message. When the first device list information exists in the response message, the first device list information included in the response message is checked. The first device list information includes a vendor name, a subelement ID, and a data field, and the data field includes the number of devices included in the device list and detailed information about each device. Further, the detailed information about the device may include a device address, a device type, a congif method, a device name, a device operation mode (eg, a group owner mode, a client mode, etc.), and firstly, the controller 701. Identifies a vendor name, a subelement ID, and information included in the data field. The controller 701 extracts a device included in the first device list information, transmits a probe request message to the extracted device, and detects only a device that transmits a response message to the probe request message.

Meanwhile, the detailed information about the device may include operating channel information indicating a frequency channel used by the device. When the controller 701 extracts and scans a device included in the first device list information, The operation may be performed in consideration of the operation channel information. That is, the controller 701 may check only the operation channel information, extract only devices corresponding to the same frequency coverage as the first node, and scan only the extracted devices. As a result, the existence of the device can be quickly confirmed by performing a scan only on a channel corresponding to the same frequency coverage as that of the first node without having to scan the entire channel unnecessarily.

Furthermore, the detailed information about the device may include location information indicating the location of the device, and in the process of extracting and scanning a device included in the first device list information, the controller 701 may include the location information. Scanning may be performed by reflecting the reflection. That is, the controller 701 may check only the location information, extract only devices located in an area covered by the first node, and scan only the extracted devices. As a result, since the device is not scanned in a region other than the region covered by the first node, the device can be reconfirmed more quickly and effectively.

The controller 701 configures the second device list information by reflecting the device detected in the above-described operation, and stores the configured information in the memory unit 704.

Since a response message may be received from the plurality of second nodes, the second device list information may be continuously updated until the discovery process is completed. After the discovery process is completed, the controller 701 may provide the second device list information to the second node so that the second device list information can be shared with the second node.

Although, in an embodiment of the present invention, it is illustrated that the second device list information is provided to the second node that has transmitted the first device list information, but the present invention is not limited thereto. For example, the second device list information may be provided to a device included in the second device list information.

In the above, the configuration of a device to which the neighboring node identification method according to an embodiment of the present invention is applied has been described with reference to a device for transmitting a discovery message and receiving a response message (hereinafter referred to as a transmission device). Unlike the transmitting device, the device to which the neighbor node identification method is applied may also operate as a device (hereinafter, referred to as a receiving device) that receives a discovery message and transmits a response message.

Hereinafter, the operation of the receiving device will be described. The receiving device includes the same configuration as the transmitting device, but specific operations such as the control unit 701 and the memory unit 704 proceed differently from the transmitting device.

The controller 701 receives the discovery message through the data transceiver 702 and checks whether the first device list information is previously stored in the memory 704. The controller 701 configures the response message in consideration of whether the first device list information is stored.

The controller 701 basically inserts information (eg, address, identifier, type, etc.) about the second node into an Elements ID, Length, OUI, OUI Type field, and the like, and checks whether the first device list information is present in the P2P Subelements field. Insert it in In addition, when the first device list information is previously stored, the controller 701 inserts the first device list information into the P2P Subelements field. That is, a vendor name, a subelement ID, and a data field are inserted, and the number of devices included in the device list in the data field, device address, device type, congif method, device name, Insert detailed information including device operating mode (eg, Group Owner Mode, Client Mode, etc.).

In addition, the controller 701 may further insert operation channel information indicating a frequency channel used by the device in the detailed information, and more preferably, position information indicating the location of the device in the detailed information. You can insert more.

On the other hand, the control unit 701 receives the second device list information confirmed by the transmission device, and updates the device included in the second device list information to reflect the first device list.

In an embodiment of the present invention, although the transmitting device and the receiving device are included in the same apparatus, the control unit 701 and the memory unit 704 operate differently according to the functions of the transmitting device and the receiving device. The present invention is not limited to this. For example, the transmitting device and the receiving device may be included in different devices and configured as independent devices.

8 is a schematic block diagram illustrating a mobile terminal to which a communication method according to an embodiment of the present invention is applied.

Referring to FIG. 8, the mobile terminal 100 may be connected to an external device (not shown) using the mobile communication module 120, the sub communication module 130, and the connector 165. &Quot; External device " includes other devices (not shown), a cell phone (not shown), a smart phone (not shown), a tablet PC (not shown) and a server (not shown).

The mobile terminal 100 includes a touch screen 190 and a touch screen controller 195. The apparatus 100 includes a controller 110, a mobile communication module 120, a sub communication module 130, a multimedia module 140, a camera module 150, a GPS module 155, an input / output module 160 A sensor module 170, a storage unit 175, and a power supply unit 180. The sub communication module 130 includes at least one of a wireless LAN module 131 and a local communication module 132. The multimedia module 140 includes a broadcasting communication module 141, an audio reproduction module 142, (143). The camera module 150 includes at least one of a first camera 151 and a second camera 152. The input / output module 160 includes a button 161, a microphone 162, a speaker 163, A motor 164, a connector 165, and a keypad 166.

The control unit 110 stores a ROM or a ROM 112 storing a control program for controlling the apparatus 100 and a signal or data input from the outside of the apparatus 100, And a RAM (RAM) 113 used as a storage area for a work to be performed. The CPU 111 may include a single core, a dual core, a triple core, or a quad core. The CPU 111, the ROM 112, and the RAM 113 may be interconnected via an internal bus.

The control unit 110 includes a mobile communication module 120, a sub communication module 130, a multimedia module 140, a camera module 150, a GPS module 155, an input / output module 160, a sensor module 170, The storage unit 175, the power supply unit 180, the first touch screen 190a, the second touch screen 190b, and the touch screen controller 195, as shown in FIG.

The mobile communication module 120 allows the device 100 to be connected to an external device through mobile communication using at least one or more antennas (not shown) under the control of the controller 110. The mobile communication module 120 may communicate with a mobile phone (not shown), a smartphone (not shown), a tablet PC or other device (not shown) having a phone number input to the device 100, And transmits / receives a radio signal for a text message (SMS) or a multimedia message (MMS).

The sub communication module 130 may include at least one of a wireless LAN module 131 and a local area communication module 132. For example, it may include only the wireless LAN module 131, only the short range communication module 132, or both the wireless LAN module 131 and the short range communication module 132.

The wireless LAN module 131 may be connected to the Internet at a place where a wireless access point (not shown) is installed under the control of the controller 110. [ The wireless LAN module 131 supports the IEEE 802.11x standard of the Institute of Electrical and Electronics Engineers (IEEE). The short-range communication module 132 may wirelessly perform short-range communication between the apparatus 100 and the image forming apparatus (not shown) under the control of the controller 110. [ The local area communication method may include bluetooth, infrared data association (IrDA), and the like.

The apparatus 100 may include at least one of a mobile communication module 120, a wireless LAN module 131, and a local communication module 132 according to performance. For example, the device 100 may include a combination of a mobile communication module 120, a wireless LAN module 131, and a short range communication module 132 depending on performance.

The multimedia module 140 may include a broadcasting communication module 141, an audio reproducing module 142, or a moving picture reproducing module 143. The broadcast communication module 141 receives a broadcast signal (e.g., a TV broadcast signal, a radio broadcast signal, or a data broadcast signal) transmitted from a broadcast station through a broadcast communication antenna (not shown) under the control of the controller 110, (E. G., An Electric Program Guide (EPS) or an Electric Service Guide (ESG)). The audio playback module 142 may play back a digital audio file (e.g., a file having a file extension of mp3, wma, ogg, or wav) that is stored or received under the control of the controller 110. [ The moving picture playback module 143 may play back digital moving picture files (e.g., files having file extensions mpeg, mpg, mp4, avi, mov, or mkv) stored or received under the control of the controller 110. [ The moving picture reproducing module 143 can reproduce the digital audio file.

The multimedia module 140 may include an audio reproduction module 142 and a moving picture reproduction module 143 except for the broadcasting communication module 141. [ The audio reproducing module 142 or the moving picture reproducing module 143 of the multimedia module 140 may be included in the controller 100.

The camera module 150 may include at least one of a first camera 151 and a second camera 152 for capturing still images or moving images under the control of the controller 110. [ In addition, the first camera 151 or the second camera 152 may include an auxiliary light source (e.g., a flash (not shown)) for providing the light amount necessary for photographing. The first camera 151 may be disposed on the front side of the apparatus 100 and the second camera 152 may be disposed on the rear side of the apparatus 100. The distance between the first camera 151 and the second camera 152 is larger than 1 cm and smaller than 8 cm) in a manner different from the first camera 151 and the second camera 152 Dimensional still image or a three-dimensional moving image.

The GPS module 155 receives radio waves from a plurality of GPS satellites (not shown) on the earth orbit, and uses the Time of Arrival from the GPS satellites (not shown) to the device 100 The position of the apparatus 100 can be calculated.

The input / output module 160 may include at least one of a plurality of buttons 161, a microphone 162, a speaker 163, a vibration motor 164, a connector 165, and a keypad 166.

Button 161 may be formed on the front, side or rear of the housing of the device 100, the power / lock button (not shown), volume button (not shown), menu button, home button, return It may include at least one of a button (back button) and the search button 161.

The microphone 162 receives a voice or a sound under the control of the controller 110 and generates an electrical signal.

The speaker 163 may transmit various signals (for example, a radio signal, a broadcast signal, a radio signal, a radio signal, a radio signal, a radio signal, and the like) of the mobile communication module 120, the sub communication module 130, the multimedia module 140, or the camera module 150 under the control of the controller 110. [ A digital audio file, a digital moving picture file, a picture photographing, or the like) to the outside of the apparatus 100. The speaker 163 can output sound corresponding to the function performed by the apparatus 100 (e.g., a button operation sound corresponding to a telephone call or a ring back tone). The speaker 163 may be formed at one or a plurality of positions at appropriate positions or positions of the housing of the apparatus 100.

The vibration motor 164 can convert an electrical signal into a mechanical vibration under the control of the control unit 110. [ For example, when the device 100 in the vibration mode receives a voice call from another device (not shown), the vibration motor 164 operates. May be formed in the housing of the apparatus 100 in one or more. The vibration motor 164 may operate in response to the user's touching operation on the touch screen 190 and the continuous movement of the touch on the touch screen 190.

The connector 165 may be used as an interface for connecting the apparatus 100 to an external apparatus (not shown) or a power source (not shown). The data stored in the storage unit 175 of the apparatus 100 is transmitted to an external device (not shown) via a wired cable connected to the connector 165 under the control of the controller 110, Lt; / RTI > Power can be input from a power source (not shown) or can be charged to a battery (not shown) through a wired cable connected to the connector 165. [

The keypad 166 may receive key input from a user for control of the device 100. The keypad 166 includes a physical keypad (not shown) formed on the device 100 or a virtual keypad (not shown) displayed on the touch screen 190. A physical keypad (not shown) formed in the device 100 may be excluded depending on the performance or structure of the device 100. [

The sensor module 170 includes at least one sensor for detecting the condition of the device 100. For example, the sensor module 170 may include a proximity sensor that detects whether a user is approaching the device 100, a light intensity sensor (not shown) that detects the amount of light around the device 100, (Not shown) that detects the motion of the device 100 (e.g., the rotation of the device 100, the acceleration or vibration applied to the device 100). At least one of the sensors may detect the state, generate a signal corresponding to the detection, and transmit the signal to the control unit 110. The sensor of the sensor module 170 may be added or deleted depending on the capabilities of the device 100.

The storage unit 175 is connected to the mobile communication module 120, the sub communication module 130, the multimedia module 140, the camera module 150, the GPS module 155, the input / And may store signals or data input / output corresponding to the operation of the touch panel 160, the sensor module 170, and the touch screen 190. The storage unit 175 may store control programs and applications for controlling the apparatus 100 or the control unit 110. [

 The term " storage unit " includes a storage unit 175, a ROM 112 in the control unit 110, a RAM 113, or a memory card (not shown) ). The storage unit may include a nonvolatile memory, a volatile memory, a hard disk drive (HDD), or a solid state drive (SSD).

The power supply unit 180 may supply power to one or a plurality of batteries (not shown) disposed in the housing of the apparatus 100 under the control of the controller 110. One or more batteries (not shown) supply power to the device 100. In addition, the power supply unit 180 can supply power to the apparatus 100 from an external power source (not shown) through a wired cable connected to the connector 165.

The touch screen 190 may provide a user interface corresponding to various services (e.g., call, data transmission, broadcasting, photographing) to the user. The touch screen 190 may transmit an analog signal corresponding to at least one touch input to the user interface to the touch screen controller 195. The touch screen 190 can receive at least one touch through a user's body (e.g., a finger including a thumb) or a touchable input means (e.g., a stylus pen). Also, the touch screen 190 can receive a continuous movement of one touch among at least one touch. The touch screen 190 may transmit an analog signal corresponding to the continuous movement of the input touch to the touch screen controller 195.

In the present invention, the touch is not limited to the contact between the touch screen 190 and the user's body or touchable input means, but may be a non-contact (e.g., between the touch screen 190 and the user's body, 1 mm or less). The distance that can be detected on the touch screen 190 may vary depending on the performance or structure of the device 100.

The touch screen 190 may be implemented by, for example, a resistive method, a capacitive method, an infrared method, or an acoustic wave method.

The touch screen controller 195 converts the received analog signal from the touch screen 190 into a digital signal (e.g., X and Y coordinates) and transmits the converted signal to the controller 110. [ The controller 110 may control the touch screen 190 using the digital signal received from the touch screen controller 195. For example, the control unit 110 may cause a shortcut icon (not shown) displayed on the touch screen 190 to be selected or a shortcut icon (not shown) in response to a touch. Also, the touch screen controller 195 may be included in the control unit 110. [

In particular, the WLAN module 131 may operate as a terminal to which the neighbor node check method according to an embodiment of the present invention is applied, and includes a controller 701, a data transceiver 702, an antenna 703, and a memory. It may include a portion 704.

It will be appreciated that the method and apparatus for identifying a neighbor node according to embodiments of the present invention may be realized in the form of hardware, software, or a combination of hardware and software. Such arbitrary software may be stored in a memory such as, for example, a volatile or non-volatile storage device such as a storage device such as ROM or the like, or a memory such as a RAM, a memory chip, a device or an integrated circuit, , Or a storage medium readable by a machine (e.g., a computer), such as a CD, a DVD, a magnetic disk, or a magnetic tape, as well as being optically or magnetically recordable. The method and apparatus for setting a data transmission / reception interval of the present invention may be implemented by a computer or a portable terminal including a control unit and a memory, and the memory may store a program or programs including instructions for implementing the embodiments of the present invention. It will be appreciated that this is an example of a suitable machine-readable storage medium. Accordingly, the invention includes a program comprising code for implementing the apparatus or method as claimed in any of the claims herein, and a storage medium readable by a machine (such as a computer) for storing such a program. In addition, such a program may be electronically transported through any medium such as a communication signal transmitted via a wired or wireless connection, and the present invention appropriately includes the same.

Claims (20)

In the method for performing the connection between devices,
Conducting a search for a device included in a network area, receiving first device list information including a list of devices connected to the at least one searched device from the searched at least one device;
Checking a list of devices included in the network area by reflecting the first device list information;
Checking second device list information on a device included in the network area;
Storing the second device list information;
And providing the second device list information. The method of claim 1, wherein the receiving of the first device list information comprises:
broadcasting a probe request message, and receiving a probe response message including first device list information from the at least one discovered device in response thereto. The method of claim 1, wherein the first device list information,
The number of devices included in the device list, the method comprising the detailed information about the device. The method of claim 3, wherein the detailed information about the device includes a device address, a device type, a config method, and a device name. The method of claim 4, wherein the detailed information about the device includes operating channel information indicating a frequency channel used by the device.
And identifying a device included in the network area by reflecting the operating channel information. The method according to claim 4 or 5,
Detailed information about the device includes location information indicating the location of the device,
And identifying a device included in the network area by reflecting the location information. Providing a first device list information including a list of pre-connected devices as a first device for searching for a device;
Receiving second device list information about a device included in a network checked by the first device;
And updating the first device list information by reflecting the second device list information. The method of claim 7, wherein the providing of the first device list information comprises:
Receiving a probe request message from the first device,
And the probe response message including the first device list information comprises transmitting. The method of claim 7, wherein the first device list information,
And the number of devices included in the device list and detailed information about the devices. The method of claim 9, wherein the detailed information about the device includes a device address, a device type, a config method, and a device name. The method of claim 10, wherein the detailed information about the device includes operating channel information indicating a frequency channel used by the device. 12. The method of claim 10 or 11, wherein the detailed information about the device includes location information indicating the location of the device. An apparatus for performing a connection between devices, the apparatus comprising:
A data transceiver for transmitting and receiving data with a neighboring device;
Conducting a search for a device included in a network area, and receiving first device list information including a list of devices connected to the at least one searched device from the searched at least one device; Checking the list of devices included in the network area by reflecting the first device list information, checking second device list information on devices included in the network area, and the second device. And a control unit controlling the operation of storing list information and the operation of providing the second device list information. 14. The apparatus of claim 13,
broadcasting a probe request message, and receiving a probe response message including first device list information from the at least one discovered device in response thereto. The method of claim 12, wherein the first device list information,
Apparatus comprising the number of devices included in the device list, detailed information about the device. The method of claim 12, wherein the detailed information about the device includes a device address, a device type, a config method, and a device name. 17. The method of claim 16,
The detailed information about the device further includes operating channel information indicating a frequency channel used by the device,
The controller may be configured to process scanning of the device by reflecting operating channel information. 18. The method according to claim 16 or 17,
The detailed information about the device further includes location information indicating the location of the device,
And the controller is configured to process the scanning of the device by reflecting the location information. A data transceiver for transmitting and receiving data with a neighboring device;
Providing a first device list information including a list of pre-connected devices, receiving second device list information on a device included in a network identified by the first device, as a first device for conducting a device discovery; And a control unit controlling an update operation of the first device list information reflecting the second device list information. The method of claim 19, wherein the device list information,
Apparatus comprising the number of devices included in the device list, and detailed information for each device.

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