Abstract: A wireless power reception device according to an embodiment of the present specification comprises a controller for: receiving wireless power from a wireless power transmission device, and performing power pickup for receiving the wireless power from the wireless power transmission device by magnetic coupling with the wireless power transmission device at an operating frequency; and communicating with the wireless power transmission device by using at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency, and controlling reception of the wireless power, wherein, in the power transmission step of receiving the wireless power, the controller transmits or receives, using the in-band communication, a message for controlling the wireless power, and transmits or receives, using the out-band communication, an authentication message for authentication of the wireless power transmission device.

Abstract: A wireless power transmission method by a wireless power transmission apparatus, according to an embodiment of the present specification, comprises: a ping step for transmitting a digital ping and receiving a response to the digital ping from a wireless power reception apparatus; a configuration step for receiving, from the wireless power reception apparatus, a configuration packet including information about elements of an initial power transmission contract; a contract step for receiving, from the wireless power reception apparatus, information about an element of an expanded power transmission contract for updating the initial power transmission contract to the expanded power transmission contract; and a power transmission step for transmitting wireless power to the wireless power reception apparatus, on the basis of the expanded power transmission contract, and receiving, from the wireless power reception apparatus, first control information for control of the wireless power, wherein the response to the d

Abstract: A wireless power reception apparatus according to an embodiment of the present specification comprises: a power pickup circuit for receiving wireless power from a wireless power transmission apparatus via magnetic coupling with the wireless power transmission apparatus at an operating frequency; and a communication/control circuit for controlling reception of the wireless power while communicating with the wireless power transmission apparatus by using at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency, wherein the communication/control circuit transmits a request message to the wireless power transmission apparatus during an out-band channel establishment process for the out-band communication, and transmits an error message to the wireless power transmission apparatus, on the basis of a response message regarding the request message being not received from the wireless power transmission apparatus with a certain

Abstract: A wireless power reception device according to an embodiment of the present specification relates to a wireless power reception device for receiving wireless power from a wireless power transmission device, wherein the wireless power reception device can receive additional power from an additional power source in addition to the wireless power, and enters a suspend state for receiving the wireless power transmitted according to a power transfer contract for a predetermined time on the basis of a variation in the additional power while receiving the wireless power from the wireless power transmission device according to the power transfer contract established by the wireless power transmission device.

Abstract: A method by which a wireless power transmitter transmits wireless power, according to one embodiment of the present specification, comprises: a ping step of transmitting a digital ping, and receiving a response to the digital ping from a wireless power receiver; a configuration step of receiving, from the wireless power receiver, a configuration packet including information about whether the wireless power receiver supports an authentication function; and a power transmission step of transmitting wireless power to the wireless power receiver, wherein the power transmission step includes a low-power transmission step of transmitting low wireless power, an authentication step of authenticating the wireless power transmitter on the basis the supporting of the authentication function by the wireless power receiver, and a high-power transmission step of transmitting high wireless power on the basis of the successful authentication of the wireless power transmitter in the authentication step.

Abstract: A wireless power transmitter, according to one embodiment of the present specification, comprises: a power converter that transmits wireless power to a wireless power receiver and transmits the wireless power to the wireless power receiver by means of magnetic coupling with the wireless power receiver at an operating frequency; and a controller that communicates with the wireless power receiver and controls the transmission of the wireless power by using at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency, wherein the controller: transmits and receives a message to and from the wireless power receiver by using both the in-band communication and the out-band communication, wherein the controller transmits and receives a message related to detection of foreign substances between the wireless power receiver and the power converter by using the in-band communication, and transmits and receives an authentication related

Abstract: The present invention relates to an apparatus and a method for providing charging status information in a wireless power transmission system.

Abstract: A device for transmission of wireless power according to an embodiment of the present specification comprises: a power conversion circuit for transmitting the wireless power to a wireless power receiving device; and a communication/control circuit for communicating with the wireless power receiving device and controlling the wireless power, wherein the communication/control circuit transmits a response to a reception data packet received from the wireless power receiving device or a transmission data packet transmitted to the wireless power receiving device on the basis of a timeout period, and the timeout period is changed according to a communication speed between the communication/control circuit and the wireless power receiving device.

Abstract: The present disclosure relates to a method for a third device to perform device authentication in a wireless communication system, and an apparatus for same, which comprises: forming a connection with a first device for being provided with a credential token based on at least one user account related to a specific user; receiving a first message including the credential token; broadcasting an advertisement message including a token identifier (ID) based on the credential token; and forming a connection with a second device through the device authentication of the second device based on the token ID, wherein the success of the device authentication is determined based on whether (i) at least one user account related to the specific user and identified based on the token ID matches (ii) at least one user account among one or more user accounts related to an account-based pairing filter set in the second 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 an apparatus and method enabling different types of communication between a wireless power transmission apparatus and a wireless power reception apparatus. The present specification provides a wireless power transmission apparatus, a wireless power transmission method, a wireless power reception apparatus, a wireless power reception method, and a wireless charging system capable of quickly providing a user with information according to a change in a charging status.

Abstract: The present specification relates to a wireless power transmission device, a wireless power reception device, a wireless power transmission method, a wireless power reception method, and a wireless power transmission system, wherein, when a wireless charging error is determined to have occurred during wireless charging between the wireless charging transmission device and the wireless power reception device, the wireless power transmission device transmits a broadcasting alarm message on the basis of out-of-band communication, the wireless power reception device receives the broadcasting alarm message, and the wireless power reception device can, upon receiving the broadcasting alarm message, transmit the alarm message to a Bluetooth device connected to the wireless power reception device.

Abstract: Provided in the present specification is a method by which a user device performs a handover in a wireless communication system. Particularly, the method by which a user device performs a handover comprises the steps of: connecting by Bluetooth with a first target device on the basis of first authentication information; measuring a first link state between the user device and the first target device; measuring a second link state between the user device and the second target device; determining whether to perform a handover for the second target device on the basis of the first link state and the second link state; and performing a Bluetooth connection procedure with the second target device when performance of the handover for the second target device is determined, wherein second authentication information for the Bluetooth connection procedure with the second target device is the same as the first authentication information for the Bluetooth connection with the first target 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 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: The present specification relates to: a wireless power receiving device, which can receive information about a power class on the basis of out-band communications at a short distance before the wireless power receiving device is positioned at the charging position of a wireless power transmitting device, and negotiate power class; the wireless power transmitting device; a wireless power transmitting method; a wireless power receiving method; and a wireless power transmitting system. According to the present specification, whether power of the wireless power transmitting device (or a charger) is suitable for the wireless power receiving device (or a device to be charged) is quickly identified remotely or at a short distance prior to a wireless power transmission (or wireless charging), appropriate charging power is set through negotiation, and then wireless charging can be safely performed.

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. In addition, the method and apparatus includes receiving, from the second device, a second request message for requesting a transmission power change of the second device and changing a transmission power of the control device to a specific transmission power value based on the first change value and the second change value.

Abstract: A wireless power transmission device according to an embodiment of the present specification comprises: a power conversion circuit for transmitting wireless power to a wireless power reception device by means of magnetic coupling with the wireless power reception device at an operating frequency; and a communication/control circuit for communicating with the wireless power reception device by using in-band communication that uses the operating frequency and/or out-band communication that uses a frequency other than the operating frequency, and for communicating with at least one other wireless power transmission device by using the out-band communication, wherein the communication/control circuit measures the distance to the wireless power reception device and transmits the information about the measured first distance to the other wireless power transmission device.

Abstract: According to one aspect of the present invention, a wireless power reception device includes: a power pickup circuit configured to form a magnetic coupling with a wireless power transmission device to receive wireless power from the wireless power transmission device; and a communication/control circuit configured to perform transmission control for the wireless power and at least one of data transmission and reception on the basis of communication with the wireless power transmission device, wherein the communication/control circuit can initiate a process for generating an authenticated link for charging by accepting only a connection request received within a prescribed authentication accept period.

Abstract: According to an aspect of the present invention, a wireless power reception device includes: a power pick-up circuit which is configured to form magnetic coupling with a wireless power transmission device and receive wireless power from the wireless power transmission device; and a communication/control circuit which is configured to perform at least one among control of the transmission of the wireless power and data transmission and reception on the basis of communication with the wireless power transmission device, wherein the communication/control circuit can receive a check message for checking payment information from the wireless power transmission device and perform a payment procedure for wireless power transmission, and can provide a user interface related to information for the payment procedure.