Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Hwanjin Kim

Yangwoon Roh

Junil Choi

Chulhee Jang

Yongyun Choi

Jinyoung Park

Sanguk Park

Hyunpil Kim

Keonyoung Seo

Yeonsik Yu

Myunggyun Yoon

Heonsoon Jang

Seyeong Cheon

Cheaok Ko

Jihun Yu

Hyeongtaek Lee

A method performed by a base station in a wireless communication system, includes: determining, from among a plurality of antennas of the base station, a first antenna that meets a power threshold, based on a first beamformer scaled according to a power limit; generating a second beamformer corresponding to the first antenna; applying an overlap coefficient matrix to the second beamformer; generating a third beamformer by combining the second beamformer to which the overlap coefficient matrix has been applied and the first beamformer; and transmitting a signal using the third beamformer.

Device and method for controlling beamformer in wireless communication system

Disclosed is a method for estimating a channel of a terminal by a base station in a wireless communication system supporting multiple antennas, the method comprising the steps of: estimating a moving speed of the terminal on the basis of a first channel value acquired at a current time point and a second channel value acquired at a previous time point; determining, on the basis of the estimated moving speed, a complexity degree corresponding to the number of channel values for multiple time points including the current time point; and estimating a channel of the terminal at a next time point on the basis of the determined complexity degree.

Method and device for channel estimation in wireless communication system supporting MIMO

The disclosure relates to a 5generation (5G) or pre-5G communication system for supporting a higher data rate after a 4generation (4G) communication systems such as long term evolution (LTE). The disclosure is for reconstructing a downlink channel in a wireless communication system. An operation method for a base station is provided. The operation method includes the steps of transmitting downlink reference signals (RSs) to a terminal, receiving an indication of a first channel matrix estimated by the terminal and at least one uplink RS; estimating a second channel matrix on the basis of the at least one uplink RS, and on the basis of the first channel matrix and the second channel matrix, reconstructing channel information to be used for data transmission.

Apparatus and method for reconstructing downlink channel in wireless communication system

A method for identifying information on an external electronic device based on near field communication (NFC). The method includes transmitting a signal of an NFC band to the external electronic device; identifying whether the external electronic device is capable of NFC, requesting an NFC identifier (ID) from the external electronic device, and receiving the NFC ID from the external electronic device; receiving the NFC ID, reading a unique identifier from the NFC ID, and identifying a communication protocol type; identifying flag information included in the NFC ID; and determining whether the external electronic device is initially recognized and/or normally recognized through the flag information.

Electronic device and method for identifying product based on near field communication

An electronic device includes a communication interface operable to perform contactless communication with an external device; and a processor operable to control to determine a communication type to be performed with the external device; when the communication type is a first type of continuous communication, configure data in a long packet structure; when the communication type is a second type of discontinuous communication, configure data in a short packet structure; and perform data communication in the continuous communication or in the discontinuous communication with the external device on the basis of the determined communication type.

Continuous communication method and apparatus of contactless communication device

A continuous communication apparatus includes a communication interface configured for contactless communication with a different electronic device; and a processor configured to detect a trigger to initiate contactless communication with the different electronic device; determine a communication type associated with communication to be performed with the different electronic device upon detecting the trigger; set at least one parameter associated with continuous communication when the communication type is the continuous communication; and perform the continuous communication with the different electronic device on the basis of the configured parameter.

Growing community of inventors

Gyeonggi-do, South Korea

Hwanjin Kim