Abstract: According to one embodiment of the present specification, a method for performing authentication between an authentication initiator and an authentication responder in a wireless power transmission system comprises the steps in which: the authentication initiator transmits an initiator certificate chain and an initiator signature to the authentication responder; the authentication initiator receives a responder certificate chain and a responder signature from the authentication responder who has authenticated the authentication initiator by verifying the initiator signature information; and the authentication initiator verifies the responder signature to authenticate the authentication responder.

Abstract: The present invention relates to an access control method and device in a wireless power transmission system. A wireless power transmission device comprises: a power conversion circuit configured to have a plurality of primary coils and transmit wireless power to a wireless power reception device by using the primary coil which has formed magnetic coupling to the wireless power reception device at an operating frequency; and a communication/control circuit configured to perform in-band communication with the wireless power reception device by using the operating frequency and perform out-band communication with the wireless power reception device by using a frequency other than the operating frequency, wherein the communication/control circuit can transmit information for notifying whether or not connection to the wireless power reception device is possible by using the out-band communication.

Abstract: The present specification relates to wireless power transmission and particularly to a wireless power reception device, wireless power transmission device, method, and system, which can receive and update firmware of a wireless power reception device and/or wireless charging transmission device by using wireless communication. According to the present specification, the firmware of the wireless power reception device and firmware of the wireless power transmission device can be maintained in an up-to-date state.

Abstract: A wireless power reception device according to an embodiment of the present specification comprises: a power pickup circuit configured to receive wireless power from a wireless power transmission device by magnetic coupling with the wireless power transmission device at an operating frequency, and convert an AC signal generated by the wireless power into a DC signal; and a communication/control circuit for communicating with the wireless power transmission device by using in-band communication using the operation frequency and out-band communication using a frequency other than the operation frequency, wherein the communication/control circuit transmits access information of a Wi-Fi network connected to the wireless power reception device, to the wireless power transmission device by using the out-band communication.

Abstract: According to one aspect of the present invention, a wireless power receiver for receiving wireless power on the basis of out-band communication is provided. The receiver comprises: a power pick-up circuit configured to receive wireless power from a wireless power transmitter at an operating frequency; and a communication/control circuit configured to perform at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency. Here, on the basis of at least one of the received voltage in the power pick-up circuit and a received signal strength indicator (RSSI) of a first signal related to the out-band communication, the communication/control circuit may perform a power interruption procedure for interrupting transmission of the wireless power and a disconnection procedure for releasing the connection of the out-band communication.

Abstract: The present invention relates to a method and an apparatus for calling a voice recognition service by using Bluetooth low energy (LE). In particular, a method performed by a first device may comprise the steps of: receiving a first request message requesting start of a voice recognition service, from a second device connected to the first device through Bluetooth communication, wherein the first request message is generated by generation of a first wake word pre-configured in the second device; executing a voice gateway connected to multiple voice managers in response to the first request message; and executing a voice recognition service between the second device and a first voice manager determined by the voice gateway among the multiple voice managers.

Abstract: The present specification relates to a device and a method enabling in-band communication and out-band communication between a wireless power transmission device and a wireless power receiving device. The present specification discloses a wireless power transmission device, a wireless power transmission method, a wireless power receiving device, a wireless power receiving method and a wireless power transmission system, whereby the existence or not of an inter-device communication connection history is checked using whitelist information of an out-band communication module, and when corresponding to a reconnection, out-band communication is connected, and data exchange for wireless power transmission is carried out via the out-band communication.

Abstract: The present specification relates to a device and method capable of in-band communication and out-band communication between a wireless power transmitting device and a wireless power receiving device. The present specification provides a wireless power transmitting device, a wireless power transmitting method, a wireless power receiving device, a wireless power receiving method, and a wireless charging system capable of preventing cross connection when connecting out-band communication by exchanging necessary information by using in-band communication.

Abstract: The present invention relates to a near field communication method and device in a wireless power transmission system.

Abstract: The present invention relates to a device and method for performing power allocation and out-band activation by using short-range communication in a wireless power transmission system.

Abstract: The present specification relates to a wireless power transmission apparatus and a wireless power reception apparatus, which can transmit and update firmware of the wireless power transmission apparatus through out-band communication between the wireless power transmission apparatus and the wireless power reception apparatus, and to firmware updating of the wireless power transmission apparatus using out-band communication.

Abstract: A method by which a first wireless device performs a wireless connection in a wireless LAN system, according to one embodiment, comprises the steps of: receiving an advertising packet from a second wireless device through a primary channel, wherein the advertising packet includes first information for specifying a Wi-Fi service for the advertising packet and second information linked to the existence of additional data, and the first information is set as a first value linked to a DPP procedure or a second value linked to a NAN procedure; establishing a BLE-based connection with the second wireless device in order to receive the additional data; transmitting, to a second wireless terminal, a request packet for requesting additional data; and receiving, from the second wireless device, a response packet, including the additional data, as a response to the request packet, wherein the additional data is associated with DPP bootstrap URI information of the second wireless device.

Abstract: The present specification relates to a device and method for supporting heterogeneous communication in a wireless power transfer system. The present specification discloses a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transfer device, wireless power generated on the basis of magnetic coupling in a power transfer phase; and a communication and control circuit configured to transmit, to the wireless power transfer device, a first random address packet including a random address of the wireless power reception device or receive, from the wireless power transfer device, a second random address packet including a random address of the wireless power transfer device via in-band communication. By performing a handover using a random address, cross reference can be prevented and security can be enhanced, and thus a BLE connection in a wireless charging system can be more safely performed.

Abstract: The present specification relates to a device and method for wirelessly transmitting power on the basis of the reestablishment of out-band communication. The present specification discloses a wireless power receiving device comprising a communication/control circuit configured to carry out the operations of: performing handover from in-band communication using operating frequencies to out-band communication using any frequencies except for the operating frequencies; transmitting power characteristic information to the wireless power transmitting device or receiving power characteristic information from the wireless power transmitting device through the out-band communication before entering a power transmission phase; and saving power state information determined during the power transmission phase.

Abstract: The present disclosure relates to a device and method for wireless power transfer to multiple devices using a multi-coil. The device disclosed in the specification comprises: a power pickup unit configured to receive wireless power from a wireless power transfer device having a plurality of primary coils at an operation frequency by magnetic coupling to the wireless power transfer device and convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit including an in-band communication module configured to be supplied with the direct current signal from the power pickup unit and perform communication with the wireless power transfer device by using the operating frequency, and an out-band communication module configured to perform communication with the wireless power transfer device by using a frequency other than the operating frequency; and a load configured to be supplied with the direct current signal from the power pickup unit.

Abstract: Disclosed herein is a method for allowing a first device to be connected to a second device in a wireless communication system. The method includes performing a procedure for setting an advertising packet for providing a transport discovery service (TDS) and transmitting the set advertising packet to the second device, wherein the advertising packet comprises at least one advertising (AD) structure field, and one of the at least one AD structure field comprises a first length field, an AD type field indicating a type of data for providing the TDS, and an AD data field comprising TDS data for providing the TDS.

Abstract: The present invention relates to a device and a method for performing wireless power transfer on the basis of heterogeneous communication. Disclosed in the present specification is a wireless power receiving device comprising: a power pickup unit configured to receive wireless power from a wireless power transfer device by magnetically coupling with the wireless power transfer device at an operating frequency, and convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit configured to receive the direct current signal from the power pickup unit, and perform an in-band communication using the operating frequency and/or an out-band communication using a frequency other than the operating frequency; and a load configured to receive the direct current signal from the power pickup unit.

Abstract: The present disclosure relates to a method and an apparatus for establishing a reconnection between devices by using Bluetooth low energy (LE). In particular, a method performed by a first device comprises the steps of: performing a reconnection parameter negotiation procedure with a second device; transmitting, via a channel determined on the basis of a result of the negotiation procedure, to the second device, a trigger sequence including at least one trigger codeword for requesting the reconnection; and receiving a beacon from the second device in response to the trigger sequence, wherein when the beacon is received, the reconnection between the first device and the second device may be established.

Abstract: The present disclosure relates to a method and apparatus for controlling a power by using the Bluetooth Low Energy technology performed by a control device. According to the present disclosure, the method and apparatus includes establishing a connection with a first device and a second device through Bluetooth Low Energy (BLE) and receiving, from the first device, a first request message for requesting a transmission power change of the first device.

Abstract: The present specification provides a method for performing a user authentication of a first client device using a server device in a wireless communication system.