Lg Electronics Inc.

Jaehyu Kim

Laeyoung Kim

Hyunsook Kim

Jingu Choi

Minsoo Lee

Jinkwon Lim

Yongcheol Park

Joonho Park

Taeyoung Song

Myungjune Youn

Jonghun Song

Hongwon Lee

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.

Apparatus and method enabling out-band communication in wireless charging apparatus, method and system

Provided are a method for supporting wireless local area network (WLAN) use experience analysis using user equipment (UE) WLAN user data, and device supporting the same. A policy and charging function (PCF) operating in a wireless communication system: requests analytics information relating to a WLAN from a network data analytics function (NWDAF); receives analytics information relating to the WLAN from the NWDAF in response to the request; and updates a WLAN selection policy on the basis of the analytics information relating to the WLAN.

Method for supporting WLAN use experience analysis using UE WLAN user data

Disclosed in the present specification is a wireless power reception device comprising: a power pickup unit configured to receive wireless power from a wireless power transmission device by means of magnetic coupling with the wireless power transmission device at an operational frequency and convert an alternating current signal generated by the wireless power into a direct current signal; a battery configured to receive the direct current signal from the power pickup unit; and a communication/control unit configured to receive the direct current signal from the power pickup unit, perform a handover procedure from in-band communication using the operational frequency to out-band communication using a frequency other than the operational frequency, perform a procedure for selecting a priority display device on which charging status information about the battery is to be displayed through the out-band communication with the wireless power transmission device, and generate the charging status information.

Apparatus and method for providing charging status information in wireless power transmission system

The present disclosure relates to a device and a method for performing wireless power transmission on the basis of authentication. A wireless power receiver according to the present specification comprises a communication/control circuit for performing an authentication procedure on the basis of out-band communication, wherein the out-band communication is Bluetooth low energy (BLE) communication, and the communication/control circuit performs the authentication procedure on the basis of a logical link control and adaptation protocol (L2CAP) or a generic attribute profile (GATT) of the BLE communication. The present disclosure defines an authentication procedure or authentication messages of a wireless transmission device or a wireless reception device by using an out-band communication protocol, and thus can support various applications of wireless power.

Method and apparatus for performing wireless power transmission on basis of authentication

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.

Mutual authentication and re-authentication method between wireless power transmitting device and wireless power receiving device, and wireless power transmitting device and wireless power receiving device using same

According to one aspect of the present disclosure, 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.

Apparatus and method for performing wireless power transmission on basis of out-band communication in wireless power transmission system

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.

Access control method and device in wireless power transmission system

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.

Wireless power transmitting device and communication method by wireless power transmitting device

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.

Wireless power transmission device

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.

Apparatus and method for broadcasting charging error in wireless charging device, method, and system

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.

Wireless power reception device and wireless power transmission device

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.

Apparatus and method for performing firmware update in wireless power transmission system

Disclosed is a mobile terminal comprising: a communication unit for communicating with a plurality of target devices in a Bluetooth Low Energy (BLE) manner; a camera for capturing an image; and a controller configured for: receiving a plurality of advertisement information respectively including a plurality of shape information of the plurality of target devices from the plurality of target devices; and when first and second target devices among the plurality of target devices have the same shape information and when a distance of the first target device is equal to a distance of the second target device, activating a connection between the mobile terminal and the first target device based on an operation of at least one of the first target device or the second target device.

Growing community of inventors

Seoul, South Korea

Jaehyu Kim