Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Sungbum Park

Soonyoung Lee

Minsung Cho

Youngho Ryu

Sangwook Lee

Kyungmin Lee

Sungrok Yoon

Yoonsung Park

Jaeseok Park

Sungku Yeo

Bohwan Choi

Sanghyuk Wi

Hyesuk Kim

Sungkyu Jung

Cheonyong Lim

Jinsu Choi

Donghyuck Park

Jinsoo Choi

Jaehyun Park

Jinwook Kim

Kyungwoo Lee

Sanghyun Chang

Anton Komlev

Jaesung An

Daehyun Kim

Seunghyun Lee

Seongjin Park

Taewan Kim

Minsung Kim

Jeongil Kang

Chongmin Lee

Beomwoo Gu

Sungyong Joo

Maksymilian Augustyn

Nikolay Nikolayevich Olyunin

Kangho Byun

Jeongman Lee

Hyunseok Shin

Artem Rudolfovich Vilenskiy

SeongOok Park

Alexander Nikolayevich Khripkov

Jaeyoung Seol

Mikyung Kang

Sunjin Park

Soon Young Lee

Harim Kang

Hwanhee Lee

Yeeun Chi

DoWon Kim

Sunyoung Choi

Wonkyun Park

Min Sung Cho

Mikhail Nikolayevich Makurin

A wireless power transmission device includes power transmission coils for transmitting power to a wireless power reception device; inverters for applying alternating current power to the coils; a communication module using a frequency different from that of the power transmitted from the coils; and a processor. The processor controls the inverters such that first power is sequentially applied to the coils respectively, receives a communication signal from the reception device through the communication module while the first power is being sequentially applied, identifies a first coil corresponding to a position of the reception device based on of a reception time point of the communication signal and time points at which the first power starts to be applied to the coils, and controls a first inverter corresponding to the first coil such that second power for charging the reception device is applied to the first coil.

Electronic device for transmitting wireless power having a plurality of power transmission coils and operating method therefor to identify position of a wireless power reception device

Disclosed is an electronic device including a plurality of sensing coils for sensing an external device; a power transmitting coil for transmitting power to the external device; and a processor configured to: sequentially apply, to the power transmitting coil, powers having magnitudes respectively set to correspond to the plurality of sensing coils, and during a period in which power corresponding to each sensing coil of the plurality of sensing coils among the powers is applied, identify induction voltages respectively induced in the plurality of sensing coils, and sense the external device located on a wireless power transmitting device, on the basis of the identified induction voltages.

Electronic device for transmitting wireless power and operating method therefor

According to various embodiments, an electronic device attachable to and detachable from a side of a cooking vessel that is heated based on a magnetic field generated from an induction cooktop includes: a magnetic harvester circuit configured to generate electric energy based on the magnetic field generated from the induction cooktop based on the electronic device being attached to the side of the cooking vessel; a temperature sensor configured to be driven based on the electric energy and configured to detect a temperature; and a communication circuit configured to transmit the temperature to the induction cooktop.

Electronic device for detecting temperature of cooking vessel heated by induction cooktop and method of operating same

An example wireless charging device includes a wireless charging device body and a wireless power transmitting device disposed on the wireless charging device body. The wireless power transmitting device includes at least one transmitting coil and a transmitting magnetic body configured to surround the at least one transmitting coil and to face a receiving magnetic body provided on a wireless power receiving device of an external electronic device. The inner peripheral surface of the wireless power transmitting device faces the inner surface of the wireless charging device body. The transmitting magnetic body is formed in a ring structure, at least a part of which is open. One surface of the open ring structure is disposed on at least a part of the inner surface of the wireless charging device body. One surface of the ring structure of the transmitting magnetic body faces the receiving magnetic body.

Wireless charging device

According to embodiments, a wireless power transmitter may include: a communication module comprising communication circuitry; a power transmission circuit configured to transmit wireless power; and a processor. The processor may be configured to: establish a communication connection with a wireless power receiver using the communication module, control the communication module to transmit information about a first period to the wireless power receiver via the communication connection, control the power transmission circuit to transmit first power of a first frequency and a first magnitude to an outside, control the communication module to receive information about a second frequency of second power received at the wireless power receiver from the wireless power receiver via the communication connection, control the communication module to release the communication connection, based on the first frequency being different from the second frequency, and control the power transmission circuit to transmit third power of a magnitude different from the first magnitude of the first power to the outside during the first period, based on the first frequency corresponding to or substantially identical to the second frequency.

Wireless power transmitter, wireless power receiver, and method of operating the same

A first electronic device for wirelessly transmitting power may include a power transmission circuit, memory, a pulse generator, a foreign object detection circuit configured to detect a foreign object located in a path in which power is wirelessly transmitted through the power transmission circuit, and a control circuit. The control circuit may be configured to wirelessly transmit power to a second electronic device, based on an alternating current (AC) input voltage applied to the power transmission circuit, generate a trigger signal synchronized with a first time corresponding to a specified voltage of the input voltage through the pulse generator, store an output value of the foreign object detection circuit in the memory based on the trigger signal, the output value being identified at the first time, continuously obtain the output value stored in the memory from the memory during a specified time until before the trigger signal of a next period is received at the memory from the pulse generator, and detect the foreign object based on the output value obtained during the specified time.

Electronic device for wirelessly transmitting power and method of operating the same

Disclosed is a method for managing multiple remote radio heads (RRHs) in a communication network, the method including, in response to an alarm indicating that a value of an operation parameter of an RRH among the multiple RRHs is beyond a predetermined range, predicting whether the RRH is faulty, based on one or more pieces of operation information of the RRH which respectively correspond to one or more timestamps; and issuing a notification indicating that the RRH is faulty when it is predicted that the RRH is faulty, wherein the one or more pieces of operation information of the RRH comprise at least one of information related to an uptime of the RRH, information related to a type of the alarm, information related to a state of the RRH, and information related to an environment of the RRH.

Method and device for managing multiple remote radio heads in communication network

A detection coil includes a first sub coil disposed on a first PCB, the first sub coil includes a first part, and a second part that is disposed under the first part and that includes: one end connected to one end of the first part and is wound in a direction opposite to a direction the first part is wound. The detection coil includes a second sub coil disposed on a second PCB and including a third part and a fourth part disposed under the third part. The fourth part includes one end connected to one end of the third part, and is wound in a direction opposite to a direction the third part is wound. The first and second parts have polygonal shapes symmetrical to each other. The third and fourth parts have polygonal shapes symmetrical to each other. The first and second sub coils are arranged to partially overlap each other.

Coil for foreign object detection and wireless power transmitter comprising the same

The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE). The present disclosure is to generate environment information for a network design, and a method for generating environment information may include determining a location difference value of a building between first information based on photographing and second information based on measurement, and correcting a location of an obstacle determined using the first information using the location difference value.

Device and method for generating environment information for network design in wireless communication system

A sensor device is provided. The sensor device includes an energy harvester configured to generate electric energy, a monitoring circuit, a sensor, a communication circuit, and at least one processor configured to obtain information indicating a magnitude of the generated electric energy via the monitoring circuit, obtain a sensing value via the sensor, and transmit the sensing value and the information indicating the magnitude of the generated electric energy via the communication circuit to the other electronic device.

Sensor device and electronic device obtaining information from the sensor device

According to various embodiments, an electronic device comprises: a communication circuit for receiving a data communication signal including an interference signal by means of a power signal generated by a wireless power transmission device; and at least one processor, wherein the at least one processor can be configured to receive information related to the power signal from the wireless power transmission device through the communication circuit, estimate information about a channel with the wireless power transmission device, and use the communication circuit so as to remove, before decoding the data communication signal, the interference signal from the data communication signal on the basis of the information related to the power signal and the information about the channel Other various embodiments are possible.

Electronic device for removing, from data communication signal, interference due to wireless power and operating method therefor

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A communication environment analysis method according to the present invention comprises the steps of: receiving satellite information and image information of a certain area; identifying area information of an object that is not contained in the image information, on the basis of the satellite information; determining characteristic information of the object; and analyzing a communication environment of the certain area on the basis of the characteristic information, wherein the object is one that causes signal attenuation due to at least one of signal scattering and signal absorption.

Method and apparatus for analyzing communication environment in wireless communication system

A communication technique for combining a fifth generation (5G) communication system with Internet of Things (IoT) technology for supporting a higher data transmission rate than a fourth generation (4G) system, and a system thereof, are provided. A method for identifying a transmission characteristic of a radio signal in a wireless communication system according to one embodiment of the present disclosure comprises the steps of: identifying a signal transmission position; identifying a signal reception position; identifying an area in which a movable object is located between the signal transmission position and the signal reception position; identifying a characteristic of the movable object in the area; and identifying a transmission characteristic of a radio signal transmitted from the signal transmission position to the signal reception position based on the characteristic of the movable object.

Method and apparatus for communication environment analysis and network design considering movable object

A method for identifying a wireless signal transmission characteristic in a wireless communication system according to one embodiment of the present specification includes the steps for: identifying a signal transmission location; identifying a structure; identifying at least one radio wave incoming structure located on the structure, and identifying a transmission characteristic of a wireless signal transmitted from the signal transmission location on the basis of information on the at least one radio wave incoming structure.

Method and apparatus for communication environment analysis and network design considering radio wave incoming unit of structure

According to various embodiments, a wireless power transmission device comprises: a first-scheme communication circuit; a power source for generating a source signal; a power transmission circuit for forming an RF wave on the basis of the source signal; and a control circuit, wherein the control circuit can be configured to receive, from an electronic device supporting first-scheme communication and second-scheme communication, a communication signal including information on a communication environment according to the second-scheme communication through the first-scheme communication circuit, and to control, on the basis of the information on the communication environment according to the second-scheme communication, the frequency of the source signal generated by the power source and/or the transmission strength of the RF wave. Other various embodiments are possible.

Wireless power transmission device, and electronic device for wirelessly receiving power and operating method therefor

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Seoul, South Korea

Sungbum Park