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WO2015030519A1 - Procédé pour établir une connexion de communication de réseau local sans fil et dispositif électronique à cet effet - Google Patents

Procédé pour établir une connexion de communication de réseau local sans fil et dispositif électronique à cet effet Download PDF

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Publication number
WO2015030519A1
WO2015030519A1 PCT/KR2014/008064 KR2014008064W WO2015030519A1 WO 2015030519 A1 WO2015030519 A1 WO 2015030519A1 KR 2014008064 W KR2014008064 W KR 2014008064W WO 2015030519 A1 WO2015030519 A1 WO 2015030519A1
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WO
WIPO (PCT)
Prior art keywords
information
probe request
wlan
connection
probe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2014/008064
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English (en)
Korean (ko)
Inventor
이태영
신봉진
강한수
양칠렬
이명환
이춘호
강재은
윤강진
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020140110690A external-priority patent/KR102296162B1/ko
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to EP14840501.2A priority Critical patent/EP3041292A4/fr
Priority to CN201480060073.8A priority patent/CN105684520B/zh
Priority to US14/915,487 priority patent/US10624022B2/en
Publication of WO2015030519A1 publication Critical patent/WO2015030519A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to a method and apparatus for responding to a probe request for WLAN connection in a WLAN system.
  • WLAN wireless local area network
  • devices located within a specific range share resources. Therefore, when there are a plurality of WLAN devices in a specific area, resources available to each device located in the corresponding area is reduced. Furthermore, when there are a plurality of WLAN devices in a specific area, the amount of interference between each other increases due to signal transmission and reception of each device located in the corresponding area.
  • one network includes one AP (Access Point, 100), a plurality of Group Owners (GO) 110-1 to 110-N, and a plurality of WLAN devices 120-1 to. 120-M).
  • Each of the WLAN devices 120-1 to 120 -M broadcasts a probe request message 130 to search for an AP or GO located nearby.
  • all devices that receive the probe request signal that is, the AP 100 and the GOs 110-1 to 110 -N transmit a probe response message to the corresponding WLAN device to notify their existence (140-1 to 1). 140-N).
  • all APs and / or GPs receiving the probe request message transmit a probe response signal to the corresponding WLAN device, thereby rapidly increasing network traffic, thereby enabling available WLAN devices existing in the same area at that time.
  • the amount of resources decreases and the amount of interference increases.
  • an embodiment of the present invention is to propose a method and apparatus for reducing interference while increasing resource efficiency by reducing a control message of a MAC layer in a WLAN system.
  • Another embodiment of the present invention is to propose a method and apparatus for selectively transmitting a probe response message in a device of a WLAN system.
  • Another embodiment of the present invention is to propose a method and apparatus for selectively transmitting a probe response message using information included in a probe request message in a device receiving the probe request message.
  • Another embodiment of the present invention is to propose a method and apparatus for selectively transmitting a probe response message using information recorded in a device in a device receiving the probe request message.
  • Another embodiment of the present invention is to propose a method and apparatus for transmitting a message including information on a quality of a requested service in a device.
  • Another embodiment of the present invention proposes a method and apparatus for selectively transmitting a probe response message according to whether a device receiving the probe request message can provide a quality of service required by the counterpart device that has transmitted the probe request message. It is in a ship.
  • a method of a device for WLAN connection in a WLAN system may include receiving a probe request message from another device, information included in the received probe request message, and internal information of the device. Selectively transmitting a response signal to the probe request based on at least one of the following.
  • a device for WLAN connection in a WLAN system may include a communication module communicating with at least one other device, a probe request message from another device through the communication module, and the received And a controller configured to selectively transmit a response signal to the probe request based on at least one of information included in a probe request message and internal information of the device.
  • a method of a device for WLAN connection in a WLAN system may include detecting a WLAN connection event by executing at least one application and broadcasting a probe request message for WLAN connection.
  • the probe request message may include at least one of address information of the device, type information of the device, authentication information of the device, operator information of the device, request data transmission rate of the device, and algorithm operation information of the device. At least one.
  • a device for WLAN connection in a WLAN system may detect a WLAN connection event by executing a communication module communicating with at least one other device and at least one application, and wireless LAN connection. And a control unit controlling to broadcast a probe request message for transmitting the probe request message, wherein the probe request message includes address information of the device, type information of the device, authentication information of the device, operator information of the device, and request data of the device. At least one of a data rate and algorithm operation information of the device.
  • FIG. 1 is a diagram illustrating a configuration of a WLAN system for transmitting and receiving probe request and response signals according to the prior art
  • 2A is a diagram illustrating a configuration of a WLAN system for transmitting and receiving probe request and response signals according to an embodiment of the present invention
  • 2B is a diagram illustrating a configuration of a WLAN system for transmitting and receiving probe request and response signals according to another embodiment of the present invention
  • FIG. 3 is a block diagram of a device according to an embodiment of the present invention.
  • FIG. 4 is a diagram illustrating a frame structure of a probe request signal according to an embodiment of the present invention.
  • 5A is a diagram illustrating an operating procedure of a device according to an embodiment of the present disclosure.
  • 5b illustrates a means of a device according to an embodiment of the invention
  • FIG. 6 is a flowchart illustrating an operation of selectively transmitting a probe response signal based on a device list in a device according to an embodiment of the present invention
  • FIG. 7 is a flowchart illustrating an operation of selectively transmitting a probe response signal based on a device state in a device according to another embodiment of the present invention.
  • FIG. 8 is a flowchart illustrating an operation of selectively transmitting a probe response signal based on address information of a device in a device according to another embodiment of the present invention
  • FIG. 9 is a flowchart illustrating an operation of selectively transmitting a probe response signal based on a device type in a device according to another embodiment of the present invention.
  • FIG. 10 is a flowchart illustrating an operation of selectively transmitting a probe response signal based on information added to a probe request message and a device list in a device according to another embodiment of the present invention.
  • FIG. 11A illustrates an operation procedure of selectively transmitting a probe response signal based on operator information in a device according to another embodiment of the present disclosure
  • 11B is a diagram illustrating an example of selectively transmitting a probe response signal based on operator information in a WLAN system according to another embodiment of the present invention.
  • 12A is a diagram illustrating a procedure for transmitting a probe request signal by a device according to another embodiment of the present invention.
  • 12B is a diagram illustrating an operation procedure of selectively transmitting a probe response signal based on a data rate in a device according to another embodiment of the present invention.
  • FIG. 12C illustrates an example of selectively transmitting a probe response signal based on a data rate in a WLAN system according to another embodiment of the present invention.
  • expressions such as “or” or “at least one of A or / and B” include any and all combinations of words listed together.
  • each of “A or B” or “at least one of A or / and B” may include A, may include B, or may include both A and B.
  • Expressions such as “first”, “second”, “first” or “second” used in various embodiments of the present disclosure may modify various elements of the various embodiments, but do not limit the corresponding elements. .
  • the above expressions do not limit the order and / or importance of the corresponding elements.
  • the above expressions may be used to distinguish one component from another.
  • both a first user device and a second user device are user devices and represent different user devices.
  • the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.
  • a component When a component is said to be “connected” or “connected” to another component, the component may or may not be directly connected to or connected to the other component. It is to be understood that there may be new other components between the other components. On the other hand, when a component is referred to as being “directly connected” or “directly connected” to another component, it will be understood that there is no new other component between the component and the other component. Should be able.
  • the device may be WLAN devices (or WLAN electronic devices) supporting the WLAN communication function.
  • WLAN devices wireless access point (AP), smart phone, smartphone, tablet personal computer, mobile phone, video phone, e-book reader, desktop PC personal computer, laptop personal computer, netbook computer, personal digital assistant, personal multimedia assistant, portable multimedia player, MP3 player, speaker, camera, wearable device, Electronic clocks, wristwatches, refrigerators, air conditioners, vacuum cleaners, artificial intelligence robots, TVs, digital video disk (DVD) players, audio, ovens, microwave ovens, washing machines, air purifiers, medical devices (e.g.
  • MRA magnetic resonance angiography
  • MRI magnetic resonance imaging
  • CT computed tomography
  • imagers ultrasounds
  • navigation devices global positioning system receivers (GPS receivers)
  • GPS receivers global positioning system receivers
  • EDR event data recorders
  • FDR flight data recorder
  • set-top box TV box
  • TV box For example, Samsung HomeSyncTM, Apple TVTM or Google TVTM
  • electronic dictionaries automotive infotainment devices, electronic equipment for ship, avionics, security devices, camcorders, It may include one or more of game consoles. It will be apparent to those skilled in the art that the device in the following description is not limited to the devices described above.
  • device and “wireless LAN device” refer to a wireless LAN electronic device supporting a wireless LAN communication function, and the device and the wireless LAN device are not interpreted as different devices. However, in the following description, “device” and “wireless LAN device” may be interpreted as devices that perform different operations depending on whether the device transmits a probe request signal or the device transmits a probe response signal.
  • FIG. 2A illustrates a configuration of a WLAN system for transmitting and receiving probe request and response signals according to an embodiment of the present invention.
  • one network may include at least one AP (Access Point, 200) and a plurality of group owners (GOs 210-1 to 210-N). It may be configured to include a plurality of WLAN devices 220-1 to 220-M.
  • the group owners 210-1 to 210 -N serve as WLAN APs (or bridge functions) for at least one other device to form a communication group with at least one other device, that is, the WLAN device according to a user setting. Means a user device that performs).
  • the group owners 210-1 to 210 -N may perform a function of relaying communication between the AP 200 and the WLAN device.
  • the WLAN device M 220 -M periodically searches for a probe request message in order to search for APs 200 or group owners 210-1 to 210 -N in the vicinity. Broadcast (230).
  • the probe request message broadcast from the WLAN device M 220 -M may include identification information of the WLAN device M 220 -M and address information of the WLAN device M 220 -M (eg, MAC). Address (Medium Access Control Address) or IP address (Internet Protocol Address), type of WLAN device M (220-M), operator information (eg manufacturer information), authentication information, required quality of service information (eg Data rate) and additional information.
  • the AP 200 and / or group owners 210-1 to 210 -N located in the vicinity of the WLAN device M 220 -M may receive a probe request message.
  • the AP 200 and / or group owners 210-1 to 210-N selectively respond to the probe request message.
  • the AP 200, the group owner 3 210-3, and the group owner 4 210-4 transmit a probe response message in response to the probe request message (241, 240-3).
  • the group owner 1 210-1, the group owner 2 210-2, and the group owner N 210-N may not transmit a response message to the probe request message. have.
  • the AP 200 and / or group owners 210-1 through 210 -N respond to the probe request message by using information included in the probe request message or its own information. Determines whether to send a message.
  • each of the AP 200 and / or the group owners 210-1 to 210 -N may be a pre-stored list, identification information of a WLAN device that transmits a probe request message, or a WLAN that transmits a probe request message. Included in the device's address information, the type of the WLAN device that sent the probe request message, the quality of service information required by the WLAN device that sent the probe request message (eg, data rate), operator information, authentication information, and probe request message. It is possible to determine whether to send a response message to the probe request message on the basis of at least one of the additional additional information, its own state information and information on the available data rate.
  • the AP 200 and / or the group owners 210-1 to 210 -N receiving the probe request message selectively transmit the probe response message, thereby unnecessarily transmitting the probe response message. To reduce interference while improving resource efficiency.
  • FIG. 2A it is assumed that at least one AP (Access Point, 200) and a WLAN device operating as a plurality of Group Owners (GOs 210-1 to 210 -N) coexist in a WLAN system.
  • AP Access Point
  • WLAN device operating as a plurality of Group Owners
  • embodiments of the present invention may be applied in the same manner to a situation in which at least one AP exists without a group owner, as shown in FIG. 2B.
  • FIG. 2B illustrates a configuration of a WLAN system for transmitting and receiving probe request and response signals according to another embodiment of the present invention.
  • one network includes at least one AP (Access Point, 200) and a plurality of WLAN devices 220-1 to 220 -M. Can be configured.
  • AP Access Point
  • WLAN devices 220-1 to 220 -M Can be configured.
  • the WLAN device M 220 -M periodically broadcasts a probe request message to search for at least one AP present in the vicinity.
  • the APs 200-1 to 200 -N located near the WLAN device M 220 -M may receive a probe request message.
  • the APs 200-1 to 200 -N selectively respond to a probe request message.
  • the AP2 200-2, the AP3 200-3, the AP4 200-4, and the APN 200 -N transmit a probe response message in response to the probe request message (240).
  • each of the APs 200-1 to 200 -N may not transmit a response message to the probe request message. That is, each of the APs 200-1 to 200 -N according to an embodiment of the present invention determines whether to transmit a response message to the corresponding probe request message using information included in the probe request message or its own information. For example, each of the APs 200-1 to 200 -N may store a list stored in advance, identification information of the WLAN device transmitting the probe request message, address information of the WLAN device transmitting the probe request message, and a probe request message.
  • Type of the WLAN device that transmits the information, service quality information (eg, data rate) required by the WLAN device that transmitted the probe request message, service provider information, authentication information, additional information included in the probe request message, and own status information And whether to transmit a response message to the probe request message based on at least one of information on a data rate that can be provided.
  • service quality information eg, data rate
  • the device 300 may be an AP or a WLAN device operating as a group owner.
  • the device 300 includes components such as a bus 310, a processor 320, a memory 330, an input module 340, and a communication module 350.
  • the bus 310 connects the components included in the device 300 to each other and performs a function of transferring communication between the components.
  • the processor 320 controls various functions related to the operation of the device 300.
  • the processor 320 may decode an instruction received from at least one other component included in the device 300 through the bus 310, and execute an operation or data processing according to the decoded instruction.
  • the processor 320 executes one or more programs stored in the memory 330 to control a function for providing various services.
  • the processor 320 executes the WLAN connection program 331 stored in the memory 330 to provide a bridge function for WLAN devices to communicate through the WLAN.
  • the processor 320 executes the WLAN connection program 331 to provide a function for selectively responding to probe request messages received from WLAN devices.
  • the memory 330 stores instructions or data 335 received from or generated by at least one component included in the device 300.
  • the memory 330 may include a wireless LAN connection allowable device list, a wireless LAN connection allowable device type, authentication information for the wireless LAN connection, additional information on the wireless LAN connection, and address information of the wireless LAN connection allowable device (eg, MAC address, IP address), WLAN connection allowance operator information, WLAN connection history information indicating the WLAN devices connected to the device 300 through the WLAN, and at least one of data rates that can be stored.
  • the data rate that can be provided may be dynamically changed according to the number of terminals connected to the device 300 and the data rates used by the terminals connected to the device 300.
  • the memory 330 may include a WLAN connection program 331 module.
  • the WLAN connection program 331 module may be configured of at least one of software, firmware, and hardware.
  • the WLAN connection program 331 may include instructions for providing a bridge function for WLAN devices that wish to communicate via WLAN.
  • the WLAN connection program 331 includes a probe response program 332, information included in a probe request message, information recorded in the device 300, and status information of the device 300. Commands for selectively responding to the probe request may be included based on at least one of data rate information provided by the device 300.
  • the information included in the probe request message includes an address (Address1, Address2, Address3, 402) and / or frame body (included in the MAC header 400) in the probe request message having a frame structure as shown in FIG. It includes information added to the vendor specific information element field included in the frame body (410).
  • the information recorded in the device 300 may be a wireless LAN connection allowable device list stored in the memory 330, a wireless LAN connection allowable device type, authentication information for wireless LAN connection, address information of a wireless LAN connection allowable device, and the like. MAC address, IP address), WLAN connection allowance operator information, and WLAN connection history information.
  • the state information of the device 300 refers to information indicating whether the device 300 is operating in a pairing host mode or a normal mode.
  • the pairing host mode is a mode in which the device 300 performs an operation for establishing a connection for WLAN communication.
  • the device 300 operating in the pairing host mode allows a new WLAN device to be connected to the new WLAN device. Can form a connection with the.
  • the normal mode is a mode in which the device 300 transmits / receives data to / from WLAN devices which have already been connected to the WLAN.
  • the device 300 operating in the normal mode does not allow connection of a new WLAN device. For example, the connection of the WLAN device having an existing connection history may be allowed.
  • the probe response program 332 obtains identification information of the corresponding WLAN device from a probe request message received from the WLAN device, and the obtained identification information is stored in advance in the memory 330. It may include a command to determine whether it is registered in the device list, and whether to send a probe response message to the corresponding WLAN device based on the determination result. According to another embodiment of the present disclosure, the probe response program 332 obtains address information of the corresponding WLAN device from a probe request message received from the WLAN device, and the obtained address information is stored in the memory 330 in advance. It may include a command for determining whether to correspond to the address information of the LAN connection allowed device, and whether to send a probe response message to the corresponding WLAN device based on the determination result.
  • the probe response program 332 when the probe request message is received from the WLAN device, the probe response program 332 probes to the corresponding WLAN device based on the state of the device and the connection history information on the WLAN device. It may include a command for determining whether to send a response message. According to another embodiment of the present disclosure, the probe response program 332 acquires device type information of the corresponding WLAN device from a probe request message received from the WLAN device, and then acquires the device type information of the WLAN. It may include a command for determining whether to correspond to the connection allowable device type, and whether to send a probe response message to the corresponding WLAN device based on the determination result.
  • the probe response program 332 obtains the operator information of the corresponding WLAN device from the probe request message received from the WLAN device, and then permits the WLAN connection in which the acquired operator information is preset. And determining whether to correspond to the operator information, and determining whether to transmit a prop response message to the corresponding WLAN device based on the determination result. According to another embodiment of the present invention, the probe response program 332 obtains information on the data rate required by the corresponding WLAN device in the probe request message received from the WLAN device, and then provided by the device 300. It is determined whether the data rate required by the corresponding WLAN device can be guaranteed based on the possible data rate, and the prop response to the corresponding WLAN device is determined according to whether the data rate required by the corresponding WLAN device can be guaranteed.
  • the probe response program 332 obtains authentication information from the probe request message received from the WLAN device, whether the acquired additional information matches the preset WLAN connection authentication information. And determining whether to transmit a probe response message to the corresponding WLAN device based on the determination result.
  • the probe response program 332 adds the corresponding WLAN device that has transmitted the probe request message including the authentication information that matches the preset authentication information to the device list, and responds to the probe request using the device list. It may include a command for determining whether to transmit.
  • the above-described embodiments of determining whether to send a response message will be described in detail with reference to FIGS. 6 to 10.
  • the input module 340 transmits a command or data generated by a user selection or gesture to the processor 320 or the memory 330 through the bus 310.
  • the user input module 340 may include at least one of a physical key button, a physical keypad, a touch sensor, a proximity sensor, an acceleration sensor, a microphone, and a mouse.
  • the input module 340 may receive a command or data for mode switching of the device 300. For example, a key for switching the state of the device 300 operating in the normal mode to the pairing host mode may be input.
  • the communication module 350 performs a WLAN communication connection between the device 300 and at least one other device 302, 304.
  • the communication module 350 may support a short range communication protocol (eg, Wifi (wireless fidelity), BT (Bluetooth), or near field communication (NFC).
  • the communication module 350 may include a network communication (eg, : May support the Internet, a local area network (LAN), a wire area network (WAN), a telecommunication network, a cellular network, a satellite network, or a plain old telephone service (POTS), etc.
  • the communication module 350 may include a device 300.
  • the communication module 350 may form a group by communicating with at least one device 302 and 304 located within a threshold distance from the communication device 350.
  • the communication module 350 may include a mobile AP for generating a group that communicates using a WLAN. Access Point) function can be provided.
  • Devices 302 and 304 may be devices of the same type as device 300 or other types of devices.
  • the device 302 may be a WLAN device that broadcasts a probe request message to search for APs or GOs located in the vicinity.
  • the device 302 may include components such as a bus 360, a processor 362, a memory 364, an input module 366, and a communication module 368.
  • the bus 360 connects the components included in the device 302 with each other and performs a function of transferring communication between the components.
  • Processor 362 controls various functions associated with the operation of device 302. For example, the processor 362 may decode an instruction received from at least one other component included in the device 302 via the bus 360, and execute an operation or data processing according to the decoded instruction.
  • the processor 362 controls functions for providing various services by executing one or more programs stored in the memory 364. For example, the processor 362 executes the WLAN connection program 371 stored in the memory 364 to search for an AP and / or GO and perform a WLAN connection through the found AP and / or GO. In addition, according to an embodiment of the present disclosure, the processor 362 executes the WLAN connection program 371 and controls a function for broadcasting a probe request message for searching for an AP and / or GO.
  • Memory 364 stores instructions or data 373 received from or generated by at least one component included in device 302.
  • the memory 364 may include identification information of the device 302, device type of the device 302, authentication information for the WLAN connection, additional information for the WLAN connection, and address information of the device 302 (eg, : At least one of a MAC address, an IP address), operator information, request data rate information for each application executable in the device 302, and request data rate information for each service executable in the device 302. .
  • the memory 364 may include a WLAN connection program 371 module.
  • the WLAN connection program 371 module may be configured of at least one of software, firmware, and hardware.
  • the WLAN connection program 371 may include instructions for broadcasting a probe request message.
  • the WLAN connection program may include instructions for generating and broadcasting a probe request message, including a probe request program 372.
  • the WLAN connection program 371 may include instructions for constructing a probe request message having a frame structure as shown in FIG. 4.
  • the WLAN connection program 371 may be included in an address (Address1, Address2, Address3, 402) and / or a frame body (410) included in the MAC header 400 in the frame structure shown in FIG. It may include a command for including additional information in the vendor specific information element field.
  • the WLAN connection program 371 may include identification information of the device 302 stored in the memory 364, a device type of the device 302, authentication information for the WLAN connection, additional information for the WLAN connection, And at least one of address information (eg, MAC address, IP address) and provider information of the device 302 may be included in a provider-specific information element field of the probe request message. Additionally, the WLAN connection program 371 may include at least one application running in the device 302, at least one application requested to be executed in the device 302, and / or at least one requested to be executed in the device 302. It may include a command for including the data rate required for the service of the service provider information element field of the probe request message.
  • address information eg, MAC address, IP address
  • provider information of the device 302 may be included in a provider-specific information element field of the probe request message.
  • the WLAN connection program 371 may include at least one application running in the device 302, at least one application requested to be executed in the device 302, and / or at least one requested to be executed in the device 3
  • the WLAN connection program 371 checks the required data rate of at least one application requiring the WLAN connection among applications detected to be executed in accordance with a user or a preset method in the device 302, and confirms And a command for constructing a probe request message including the requested data rate.
  • the input module 366 transfers a command or data generated by a user selection or gesture through the bus 360 to the processor 362 or the memory 364.
  • the user input module 366 may include at least one of a physical key button, a physical keypad, a touch sensing sensor, a proximity sensor, an acceleration sensor, a microphone, and a mouse.
  • the input module 366 according to an embodiment of the present invention may receive a command or data for executing at least one application.
  • the input module 366 according to an embodiment of the present invention may receive a command or data for providing at least one service function.
  • the communication module 368 performs a WLAN communication connection between the device 302 and at least one other device 300.
  • the communication module 368 may support a short range communication protocol (eg, Wifi (wireless fidelity), BT (Bluetooth), and near field communication (NFC).
  • the communication module 368 may provide network communication (eg, : May support the Internet, a local area network (LAN), a wire area network (WAN), a telecommunication network, a cellular network, a satellite network, or a plain old telephone service (POTS), etc.
  • the communication module 368 may include a device 302. Search for at least one device 300 located within a threshold distance from the to perform a WLAN connection.
  • the device 302 detects a WLAN connection event by communicating with at least one other device, at least one application execution, and controls to broadcast a probe request message for WLAN connection. It may be configured to include a control unit.
  • the probe request message may include at least one of address information of the device, type information of the device, authentication information of the device, operator information of the device, required data rate of the device, and algorithm operation information of the device. Can be.
  • 5A illustrates an operation procedure of the device 300 according to an embodiment of the present invention.
  • the device 300 receives a probe request message from at least one other WLAN device.
  • the probe request message may be configured as shown in FIG. 4.
  • the device 300 selectively transmits a probe response signal using at least one of information included in the probe request signal and internal information of the device 300. For example, the device 300 may determine whether to transmit the probe response signal by using at least one of information included in the probe request signal, internal information of the device 300, and data rate information that may be provided by the device 300. When the probe response signal transmission is determined, the probe response signal is transmitted.
  • the information included in the probe request message may include an address (402) and / or a frame body (410) included in the MAC header 400 in the probe request message having a frame structure as shown in FIG. ) May include information added to a vendor specific information element field included in.
  • the internal information of the device 300 may include at least one of WLAN permission device related information and state information of the device 300 recorded in the device 300.
  • the WLAN-allowed device-related information recorded in the device 300 may include a wireless LAN connection allowable device list stored in the memory 330, a wireless LAN connection allowable device type, authentication information for wireless LAN connection, and wireless LAN connection allowed.
  • the device may include at least one of address information of the device, WLAN provider information, and WLAN connection history information.
  • the state information of the device 300 refers to information indicating whether the device 300 is operating in a pairing host mode or a normal mode.
  • the data rate information that can be provided by the device 300 may be determined based on information indicating a cell load such as the number of terminals connected (or connected) to the device 300, the data rate of the connected terminal, and the like.
  • the device 300 terminates another procedure according to the embodiment of the present invention.
  • 5B illustrates the means of a device according to an embodiment of the invention.
  • the device 300 includes means 511 for receiving a probe request message from at least one other WLAN device.
  • the device 300 includes a communication module 350 that supports WLAN communication to receive a probe request message.
  • the probe request message may be configured as shown in FIG. 4.
  • the device 300 also includes means 513 for selectively transmitting a probe response signal using at least one of information included in the probe request signal and internal information of the device 300. For example, the device 300 may determine whether the device 300 responds to the probe request signal by using at least one of information included in the probe request signal, internal information of the device 300, and data rate information that may be provided by the device 300.
  • the processor 320 or the probe response program 332 may be included.
  • the device 300 may include a memory 330 that records internal information of the device 300.
  • FIG. 6 illustrates an operation procedure of selectively transmitting a probe response signal based on a device list in a device according to an embodiment of the present invention.
  • the device 300 receives a probe request signal in step 601 and checks identification information of a device included in the probe request signal in step 603.
  • the identification information of the device may include at least one of a device ID, a MAC address, and an IP address.
  • the device 300 checks whether identification information of the WLAN device that transmitted the probe request signal exists in a pre-stored device list in step 605.
  • the pre-stored device list may include identification information of WLAN devices to allow WLAN connection in the device 300.
  • the pre-stored device list may be generated by processing the information collected by the device 300, may be received from another device, or may be generated based on information input by a user.
  • the device 300 If it is determined that the identification information of the WLAN device which has transmitted the probe request signal exists in the previously stored device list, the device 300 transmits a probe response signal to the WLAN device which has transmitted the probe request signal in step 607. Then, the procedure according to the embodiment of the present invention ends.
  • the device 300 may not allow the WLAN device which has transmitted the probe request signal to be connected to the WLAN. It is determined that the device, and does not transmit a probe response signal, and ends the procedure according to an embodiment of the present invention.
  • the device 300 transmits a probe response signal only to WLAN devices having identification information in the device list. It was described how to do. However, according to an embodiment, the device 300 previously stores a device list including identification information of WLAN devices that will not allow a WLAN connection, thereby probing only for WLAN devices for which identification information does not exist in the device list. It is also possible to send a response signal.
  • FIG. 7 is a flowchart illustrating an operation of selectively transmitting a probe response signal based on a device state in a device according to another embodiment of the present invention.
  • the device 300 receives a probe request signal in step 701 and checks state information of the device 300 in step 703. For example, it is checked whether the device 300 is operating in a pairing host mode that allows connection with a new WLAN device or in a normal mode that does not allow connection with a new WLAN device.
  • the device 300 changes from a power-off state to a power-on state, when the device 300 is reset, when a preset mode switch key is input, or when a mode switch request command is received by the user,
  • the device may operate in a pairing host mode for a set time period, and may operate in a normal mode for other time periods.
  • the device 300 when the device 300 is operating in the pairing host mode, the device 300 transmits a probe response signal to the WLAN device that has transmitted the probe request signal in step 607. Terminate the procedure accordingly.
  • the device 300 proceeds to operation 705 and checks the identification information of the device included in the probe request signal.
  • the identification information of the device may include at least one of a device ID, a MAC address, and an IP address.
  • the device 300 determines whether there is a previous connection record for the corresponding WLAN device based on the identification information of the device identified in operation 707.
  • the device 300 determines that the WLAN device transmitting the probe request signal is a new WLAN device, and the current device 300. ) Operates in a normal mode that does not allow connection of a new WLAN device, and thus ends the procedure according to an embodiment of the present invention without transmitting a probe response signal.
  • the device 300 determines that the WLAN device that has transmitted the probe request signal is a WLAN device that has been connected in the past in step 709.
  • the probe response signal is transmitted to the corresponding WLAN device.
  • the device 300 determines that the WLAN device that has been connected to the device 300 has been disconnected due to a location shift, etc., and thus has transmitted a probe request signal to reconnect the WLAN device.
  • the probe response signal may be transmitted to allow the connection of the.
  • the device 300 should store WLAN connection history information indicating the WLAN devices that have been connected to the device 300.
  • the device 300 ends the procedure according to the embodiment of the present invention.
  • FIG. 8 illustrates an operation procedure of selectively transmitting a probe response signal based on address information of a device in a device according to another embodiment of the present invention.
  • the device 300 receives a probe request signal in step 801 and checks address information of a device included in the probe request signal in step 803. For example, the device 300 may check the information recorded in the “Address 1, Address 2, and Address 3” field 402 in the MAC header in the probe request signal having the structure shown in FIG. 4.
  • the device 300 checks whether the confirmed address information is included in an address range of the allowable WLAN device. For example, the device 300 transmits a probe request signal by allocating address information (eg, an IP address and a MAC address) in a preset range to WLAN devices that will configure one network in advance. Based on the address information of the WLAN device may determine whether the device to configure its own network.
  • address information eg, an IP address and a MAC address
  • the device 300 transmits a probe response signal to the WLAN device which has transmitted the probe request signal in step 807, and the present invention. End the procedure according to the embodiment.
  • the device 300 determines that the WLAN device which has transmitted the probe request signal is a device which is not allowed to connect to the WLAN. The procedure according to the embodiment of the present invention is terminated without transmitting the probe response signal.
  • the device 300 operating as an AP or a group owner of the network may respond only to a probe request signal transmitted by a WLAN device having an IP address between xxx.xxx.xxx.100 and xxx.xxx.xxx.200.
  • the probe response only when the address information of the WLAN device that transmits the probe request signal is included in the address range of the allowable WLAN device by using the range information of the addresses allocated to the allowable WLAN devices.
  • the method of transmitting a signal has been described.
  • the address information of the WLAN device that transmits the probe request signal is included in the address range of the WLAN device that does not allow, using the range information of the addresses allocated to the WLAN devices that do not allow the connection.
  • the probe response signal may be sent only when the error is not obtained.
  • FIG. 9 is a flowchart illustrating an operation of selectively transmitting a probe response signal based on a device type in a device according to another embodiment of the present invention.
  • the device 300 receives a probe request signal in step 901 and checks device type information included in the probe request signal in step 903.
  • the device 300 may be added to a vendor specific information element field included in a frame body 410 in a probe request message having a frame structure as shown in FIG. 4.
  • Check the device type information may be information indicating the purpose of the corresponding device.
  • the device type information may include a TV, a speaker, a mobile phone, and the like.
  • the device 300 checks whether the device type identified in operation 905 is a preset allowable device type.
  • the device 300 may receive at least one device type information for allowing a WLAN connection to the device 300 from a designer, a user, or another device, and store the input device type information.
  • the device 300 transmits a probe response signal to the WLAN device that has transmitted the probe request signal in step 907, and performs a procedure according to an embodiment of the present disclosure. Quit.
  • the device 300 determines that the WLAN device which has transmitted the probe request signal is a device which is not allowed to connect to the WLAN, and does not transmit the probe response signal. The procedure according to the embodiment of the present invention ends.
  • the device 300 may store, in advance, information indicating that the WLAN allowable device type is a speaker type and a TV type. It can respond only to the probe request signal transmitted by the MS.
  • FIG. 9 a description will be given of a method in which the device 300 transmits a probe response signal only to a WLAN device having an allowable device type by presetting or storing type information of a WLAN device to allow WLAN connection. It was. However, according to an embodiment, a method in which the device 300 transmits a probe response signal only to a device which is not a device type not allowed by setting or storing type information of a WLAN device that will not allow a WLAN connection in advance may be possible. will be.
  • FIG. 10 is a flowchart of an operation of selectively transmitting a probe response signal based on information added to a probe request message and a device list in a device according to another embodiment of the present invention.
  • the device 300 receives a probe request signal in step 1001 and checks identification information of a device included in the probe request signal in step 1003.
  • the identification information of the device may include at least one of a device ID, a MAC address, and an IP address.
  • the device 300 checks whether identification information of the WLAN device that has transmitted the probe request signal exists in a pre-stored device list in step 1005.
  • the pre-stored device list may include identification information of WLAN devices to allow WLAN connection in the device 300.
  • the pre-stored device list may be generated and updated based on steps 1009 and 1011 described below. Accordingly, if there is no pre-stored device list, that is, if there is no WLAN device that has connected wireless connection to the device 300, the device 300 skips steps 1003 and 1005 after step 1001, and 1009 You can proceed directly to the step.
  • the device 300 transmits a probe response signal to the WLAN device which has transmitted the probe request signal in step 1007. Then, the procedure according to the embodiment of the present invention ends.
  • the device 300 checks the additional information included in the probe request signal in step 1007. For example, the device 300 may be added to a vendor specific information element field included in a frame body 410 in a probe request message having a frame structure as shown in FIG. 4. Check the information.
  • the device 300 determines whether the additional information included in the probe request signal is the same as the preset additional information. For example, the device 300 may receive and store additional information for allowing a WLAN connection to the device 300 from a designer, a user, or another device in advance, and the additional information included in the stored additional information and the probe request signal. It is determined whether the information is the same.
  • the additional information may be authentication information, device type, and information for operating a specific algorithm.
  • the device 300 displays identification information of the WLAN device that has transmitted the probe request signal in the device list indicating the WLAN device to allow the WLAN connection in step 1011. Add. The device 300 transmits a probe response signal to the WLAN device that has transmitted the probe request signal in step 1013, and ends the procedure according to the embodiment of the present invention.
  • step 1013 may be performed at the same time as step 1011 or may be performed before step 1011.
  • the device 300 determines that the WLAN device which has transmitted the probe request signal is a device which is not allowed to connect to the WLAN, and transmits a probe response signal. Instead, the procedure according to the embodiment of the present invention is terminated.
  • FIG. 11A illustrates an operation procedure of selectively transmitting a probe response signal based on operator information in a device according to another embodiment of the present invention.
  • the device 300 receives a probe request signal in step 1101, and checks operator information (eg, manufacturer information) of the device included in the probe request signal in step 1103.
  • operator information eg, manufacturer information
  • the device 300 may be added to a vendor specific information element field included in a frame body 410 in a probe request message having a frame structure as shown in FIG. 4.
  • the operator information may be information indicating the manufacturer of the device.
  • the device 300 checks whether the operator information identified in operation 1105 matches the allowable operator information. For example, the device 300 checks whether the manufacturer information included in the probe request signal matches the manufacturer information of the device 300. As another example, the device 300 checks whether the operator information included in the probe request signal matches the allowable operator information preset in the device 300.
  • the device 300 transmits a probe response signal to the WLAN device which has transmitted the probe request signal in step 1107 and performs a procedure according to an embodiment of the present invention. Quit.
  • the device 300 determines that the WLAN device that has transmitted the probe request signal is a device which is not allowed to connect to the WLAN, and the probe response signal Without transmitting, the procedure according to the embodiment of the present invention ends.
  • 11B illustrates an example of selectively transmitting a probe response signal based on operator information in a WLAN system according to another embodiment of the present invention.
  • the WLAN device 1100 manufactured by S company may broadcast information indicating that its service provider is “S company” in a probe request message. Accordingly, the plurality of APs 1110-1120 located in the vicinity of the WLAN device 1100 may receive a probe request message. In this case, the APs 1110, 1112, and 1118 of the plurality of APs 1110-1120 having the service provider “S” transmit probe response messages, and the remaining APs, that is, the service provider have “S company”. APs 1114, 1116, 1120 that are not will not send a probe response message.
  • FIG. 12A illustrates a procedure of transmitting a probe request signal in a device according to another embodiment of the present invention.
  • the device 302 determines a required data rate of an application requesting a WLAN connection.
  • the device 302 may detect that a WLAN connection event is generated by the execution of at least one application, and determine a data rate required by the executed application.
  • the device 302 may determine a data rate required by each of the plurality of applications, or may determine a data rate required by the entire plurality of applications.
  • the information about the requested data rate per application may be stored in the device 302 in advance.
  • the device 302 broadcasts a probe request signal that includes the requested data rate in step 1203.
  • the device 300 may request data in a vendor specific information element field included in a frame body 410 of a probe request message having a frame structure as shown in FIG. 4. You can add information about the rate.
  • the device 302 receives a probe response signal from at least one device 300, and performs a WLAN connection to the device 300 transmitting the probe response signal in operation 1207. For example, the device 302 determines that the device 300, which has transmitted the probe response signal, is an AP or GO that can satisfy the required data rate of the application executed in the device 302, and the device 300 is connected to the device 300. By performing the WLAN connection, the service may be provided by the corresponding application.
  • FIG. 12B is a flowchart of a method of selectively transmitting a probe response signal based on a data rate in a device according to another embodiment of the present invention.
  • the device 300 receives a probe request signal in step 1211, and checks the requested data rate included in the probe request signal in step 1213.
  • the device 300 may be added to a vendor specific information element field included in a frame body 410 in a probe request message having a frame structure as shown in FIG. 4. Check the requested data rate information.
  • the device 300 checks whether the required data rate can be guaranteed in step 1215. For example, the device 300 checks a request data rate that can be provided by the device 300, and when the request data rate that can be provided is greater than or equal to the request data rate included in the probe request signal, the device 300 can guarantee the required data rate. It can be judged that. On the other hand, when the request data rate that can be provided by the device 300 is smaller than the request data rate included in the probe request signal, the device 300 may determine that it is impossible to guarantee the request data rate.
  • the device 300 transmits a probe response signal to the WLAN device which transmitted the probe request signal in step 1217, and terminates the procedure according to the embodiment of the present disclosure.
  • the device 300 does not transmit the probe response signal and ends the procedure according to the embodiment of the present invention.
  • FIG. 12C illustrates an example of selectively transmitting a probe response signal based on a data rate in a WLAN system according to another embodiment of the present invention.
  • the WLAN device 1200 may broadcast information indicating that its required data rate is 5 Mbps in the probe request message. Accordingly, the plurality of APs 1210-1220 located near the WLAN device 1200 may receive a probe request message. In this case, the APs 1210, 1212, 1216, and 1220 that the data rate that can be provided among the plurality of APs 1210-1220 are greater than or equal to 5 Mbps transmit a probe response message, and the other APs, that is, the available APs, may be provided. APs 1214 and 1218 with data rates less than 5 Mbps will not send a probe response message.
  • the device 300 selectively transmits a probe response signal using only a request data rate of a device that transmits a probe request signal.
  • the device 300 may include at least one of device identification information, device status, device address information, device type, pre-stored device list, authentication information, and operator information, as shown in FIGS. 6 to 11C. After confirming whether the device that transmits the probe request signal is a device capable of allowing the WLAN connection or not, the device may selectively transmit the probe response signal based on the required data rate in the case of the device capable of allowing the WLAN connection. .
  • the device 300 may transmit data required by the WLAN device even if the WLAN device which has transmitted the probe request signal is identified as a device that is allowed to connect to the WLAN based on at least one of FIGS. 6 to 11C.
  • the probe response signal may be selectively transmitted to the WLAN device by further checking whether the transmission rate can be guaranteed.
  • the device 300 may determine whether to respond to the probe request message by using at least two methods described above with reference to FIGS. 6 to 13C.
  • an unnecessary probe response message is selectively transmitted by selectively transmitting a probe response message based on at least one of information included in the probe request message and information recorded in the device, from the device receiving the probe request message in the WLAN system. Can be prevented from being transmitted, thereby improving resource efficiency and reducing interference, thereby improving transmission rate in the system.
  • a probe response message may be generated at the same time to prevent the network from being congested. Interference can be reduced while improving resource efficiency.
  • the present invention transmits a probe response message only when the device receiving the probe request message in the WLAN system can provide the quality of service required by the counterpart device that has transmitted the probe request message, Quality of service can be guaranteed.
  • Each of the above-described components of the device according to various embodiments of the present disclosure may be composed of one or more components, and the name of the corresponding component may vary according to the type of device. It may be configured to include at least one of the aforementioned components of the device according to various embodiments of the present invention, some components may be omitted or further include additional other components. In addition, some of the components of the device according to various embodiments of the present invention are combined to form a single entity, thereby performing the same functions of the corresponding components before being combined.
  • the term “module” may mean, for example, a unit including one, or a combination of two or more of hardware, software, or firmware.
  • the term “module” may be used interchangeably with terms such as, for example, unit, logic, logical block, component, or circuit.
  • the module may be a minimum unit or part of an integrally constructed part.
  • the module may be a minimum unit or part of performing one or more functions.
  • the module may be implemented mechanically or electronically.
  • a “module” in accordance with various embodiments of the present invention may be an application-specific integrated circuit (ASIC) chip, field-programmable gate arrays (FPGAs), or programmable logic that perform certain operations, known or developed in the future. It may include at least one of a programmable-logic device.
  • ASIC application-specific integrated circuit
  • FPGAs field-programmable gate arrays
  • an apparatus eg, modules or functions thereof
  • method eg, operations
  • at least a portion of an apparatus may be, for example, computer readable in the form of a programming module. It may be implemented by instructions stored in a computer-readable storage media. When the instructions are executed by one or more processors (for example, the processor 320), the one or more processors may perform a function corresponding to the instructions.
  • the computer-readable storage medium may be the memory 330, for example.
  • At least some of the programming modules may be implemented (eg, executed) by, for example, the processor 320. At least some of the programming modules may include, for example, modules, programs, routines, sets of instructions, or processes for performing one or more functions.
  • Computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, and optical media such as compact disc read only memory (CD-ROM) and digital versatile disc (DVD). ), Magnetic-optical media such as floppy disks, and program instructions such as read only memory, random access memory, flash memory, etc.
  • Hardware devices specifically configured to store and perform < RTI ID 0.0 >
  • the program instructions may also include high-level language code that can be executed by a computer using an interpreter as well as machine code such as produced by a compiler.
  • the hardware device described above may be configured to operate as one or more software modules to perform the operations of the various embodiments of the present invention, and vice versa.
  • Modules or programming modules may include at least one or more of the aforementioned components, omit some of them, or further include additional components.
  • Operations performed by modules, programming modules, or other components in accordance with various embodiments of the present invention may be executed in a sequential, parallel, repetitive, or heuristic manner. In addition, some operations may be executed in a different order, may be omitted, or other operations may be added.
  • a storage medium storing instructions, wherein the instructions are configured to cause at least one processor to perform at least one operation when executed by the at least one processor, wherein the at least one operation is performed by the device. Transmitting or receiving at least one of a first signal corresponding to the first communication network and a second signal corresponding to the second communication network, and when receiving at least one signal, the service provided by the device is a first signal. And distributing at least one signal to each of the first communication control module for processing the first signal and the second communication control module for processing the second signal, based on what corresponds to the second signal. have.

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Abstract

La présente invention concerne un procédé pour établir une connexion de communication de réseau local sans fil (WLAN) et un dispositif électronique à cet effet. Le procédé pour établir une connexion de communication de WLAN dans un dispositif comprend les étapes consistant : à recevoir un message de requête de sondage d'un autre dispositif ; et à transmettre de manière sélective un signal de réponse en réponse à la requête de sondage en fonction d'au moins une information comprise dans ledit message de requête de sondage reçu et d'informations internes du dispositif.
PCT/KR2014/008064 2013-08-30 2014-08-29 Procédé pour établir une connexion de communication de réseau local sans fil et dispositif électronique à cet effet Ceased WO2015030519A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14840501.2A EP3041292A4 (fr) 2013-08-30 2014-08-29 Procédé pour établir une connexion de communication de réseau local sans fil et dispositif électronique à cet effet
CN201480060073.8A CN105684520B (zh) 2013-08-30 2014-08-29 用于建立无线局域网通信连接的方法及其电子设备
US14/915,487 US10624022B2 (en) 2013-08-30 2014-08-29 Method for establishing wireless LAN communication connection and electronic device therefor

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KR20130104414 2013-08-30
KR10-2013-0104414 2013-08-30
KR10-2014-0110690 2014-08-25
KR1020140110690A KR102296162B1 (ko) 2013-08-30 2014-08-25 무선랜 통신 연결 방법 및 그 전자 장치

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