# US 2020/0288331 A1 · Method and apparatus for connecting to access point in wlan network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0288331 A1 - Document ID: US20200288331A1 - Status: Published application - Kind: A1 - Application number: 16/531,065 - Filed: 2019-08-04 - Published: 2020-09-10 - Earliest claimed: 2019-03-05 - Assignees: Fci - Applicants: Fci Inc. - Inventors: Ji Young JUNG; Chong Hoon LEE; Yong Jin LEE; Chang Hwan PARK; Jin Wook JEONG - Web page: https://patentgrep.com/patent/US20200288331A1 ## CPC - H04W 48/16: Discovering, processing access restriction or access information - H04W 76/11: Allocation or use of connection identifiers - A24F 40/20: Devices using solid inhalable precursors - A24F 40/465: specially adapted for induction heating - A24F 40/50: Control or monitoring - A24F 40/51: Arrangement of sensors - A24F 40/70: Manufacture - H04W 12/037: of the control plane, e.g. signalling traffic - H05B 6/10: Induction heating apparatus, other than furnaces, for specific applications - H05B 6/101: {for local heating of metal pieces} - H05B 6/108: {for heating a fluid} - H05B 6/36: Coil arrangements - H05B 6/365: {using supplementary conductive or ferromagnetic pieces} - A24F 40/40: Constructional details, e.g. connection of cartridges and battery parts - A24F 40/46: Shape or structure of electric heating means - A24F 40/53: Monitoring, e.g. fault detection - A24F 40/57: Temperature control - B22F 7/062: {involving the connection or repairing of preformed parts} - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 24/02: Arrangements for optimising operational condition - H04W 48/12: using downlink control channel - H04W 84/12: WLAN [Wireless Local Area Networks] - H05B 6/38: specially adapted for fitting into hollow spaces of workpieces - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER ## Abstract Disclosed are a method and device for easily connecting to AP in WLAN. An embodiment provides a method for easily connecting to AP in WLAN to enable an IoT station to easily input connection information such as SSID, password, other information, and the like, for connecting the IoT station to the AP, and a device thereof. ## Claims ### Claim 1 A method for connecting an Internet of Things (IoT) station to an access point (AP), the method comprising: receiving first configuration data using a searched channel; receiving a beacon frame packet based on the first configuration data; extracting an encryption mode and a listening channel from the beacon frame packet; receiving second configuration data using the listening channel and generating a decryption data which decrypts the second configuration data using the encryption mode; extracting connection information from the decryption data and connecting to the AP based on the connection information; extracting an IP address included in the connection information and connecting to a device corresponding to the IP address via the AP; and based on confirmation from a terminal that connection to the device corresponding to the IP address is normal, communicating with the device corresponding to the IP address. ### Claim 2 (depends on 1) The method of claim 1, comprising: after searching a plurality of channels, receiving the first configuration data using a channel in which the first configuration data is present among the searched channels, and confirming that the first configuration data is information transmitted to the IoT station using an indication number allocated to a multicast address field included in the first configuration data. ### Claim 3 (depends on 2) The method of claim 2, comprising: extracting a Basic Service Set Identifier (BSSID) from the first configuration data and receiving the beacon frame packet from the AP corresponding to the BSSID. ### Claim 4 (depends on 3) The method of claim 3, comprising: after extracting direct sequence parameter set information element (IE), wireless protected access (WPA) IE, robust security network (RSN) IE from the beacon frame packet, detecting an encryption mode from the WPA IE and the RSN IE, finalizing an extracted channel based on the direct sequence parameter set IE as a listening channel and changing a current channel to the listening channel. ### Claim 5 (depends on 4) The method of claim 4, comprising: after changing to the listening channel, receiving the second configuration data from the AP using the listening channel and decrypting the second configuration data using that data length of a packet is uniformly changed according to the encryption mode. ### Claim 6 (depends on 5) The method of claim 5, comprising: extracting the connection information including SSID, password, and IP address from the decryption data, performing connection process with the AP using the connection information, and connecting to the device corresponding to the IP address via the AP. ### Claim 7 (depends on 5) The method of claim 5, comprising: transmitting IoT station information request including a result of an AP connection to the device corresponding to the IP address to the terminal, based on receiving an IoT station information response corresponding to the IoT station information request from the terminal, performing communication with the device corresponding to the IP address by recognizing that connection with the device corresponding to the IP address is normal, and based on not receiving the IoT station information response from the terminal, initializing the connection information. ### Claim 8 (depends on 1) The method of claim 1, wherein the second configuration data is allocated with a 12-digit hexadecimal indication number, comprises SSID, password, and IP address which are inputted from the terminal, and is information which is converted from the indication number to a multicast data format by the terminal. ### Claim 9 (depends on 8) The method of claim 8, comprising: based on receiving the second configuration data from the AP, receiving a transmission packet number matched to the indication number which is divided by a predetermined number as well. ### Claim 10 (depends on 9) The method of claim 9, wherein the second configuration data is information encrypted by an arbitrary user encryption algorithm excluding total length, using data length information included in the configuration data, according to a predetermined data conversion rule by the terminal. ### Claim 11 An IoT station comprising: a communication controller to receive first configuration data using a searched channel and receive a beacon frame packet based on the first configuration data; an encryption mode extractor to extract an encryption mode from the beacon frame packet; a listening channel extractor to extract a listening channel from the beacon frame packet; a decryption unit to receive second configuration data using the listening channel and generate decryption data which decrypts the second configuration data using the encryption mode; a connection information extractor to extract connection information from the decryption data, connect to an AP based on the connection information, extract an IP address included in the connection information, and connect to a device corresponding to the IP address via the AP; and a confirmation unit to, based on receiving a confirmation from a terminal whether connection with the device corresponding to the IP address is normal, communicate with the device corresponding to the IP address.